CN110328706B - A packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision - Google Patents

Abstract

The invention relates to the field of packaging bag production equipment, in particular to a packaging bag easy-tear line embossing machine capable of automatically adjusting the position of a cut, which comprises a packaging bag feeding frame, an embossing workbench, a packaging bag collecting frame and an industrial personal computer, wherein the embossing workbench comprises a workbench, and a sizing mechanism, an embossing wheel, a pressing wheel, a transmission mechanism and a detection mechanism which are arranged on the surface of the workbench; the fixed-length mechanism comprises a pair of first opposite-emitting photoelectric sensors respectively arranged on the upper side and the lower side of the table surface of the working table, a pressing wheel, an embossing wheel and a transmission mechanism are arranged at the middle end of the working table, the pressing wheel is rotatably arranged on the working table, the embossing wheel is rotatably arranged on the working table and can vertically lift up and down, and the pressing wheel and the embossing wheel are in transmission connection through the transmission mechanism; the embossing machine is suitable for packaging bags with different lengths, and equipment does not need to be adjusted when the bottom edge sealing distances of the packaging bags are different; and this embosser can be with missing or incomplete easily tear line secondary impressed watermark, has effectively improved the qualification rate.

Description

A packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision

technical field

The invention relates to the field of packaging bag production equipment, in particular to a packaging bag easy-tear line embossing machine capable of automatically adjusting the position of the incision.

Background technique

Pillow packaging bags have been widely used in the food and drug packaging industries for their advantages of quantitative packaging, convenient access, excellent quality and low cost. In order to facilitate the opening of the packaging bag, the packaging design of many products has an easy tear opening.

At present, the common methods of making easy-tear openings on the market include molding method, offline laser method, knife cutting method and easy-tear packaging material. Among them, the molding method and the offline laser method all require the cooperation of the packaging material manufacturer. The knife cutting method is to install the knife on the pillow packaging machine. During the production process, the easy-tear openings are respectively cut out on the horizontal and vertical seals of the pouches. , their respective disadvantages are:

(1) The molding method is to mold the easy tearing line in advance in the production process of the composite film, and the prefabrication cost is very high.

(2) Due to the problem of secondary stretching of the paper skin in the offline laser method, it is easy to deform the paper skin, resulting in the problem that the easy tearing line is not easy to tear when passing through the horizontal seal.

(3) The knife cutting method is to install a knife on the pillow packaging machine, so that in the production process, the knife acts on the horizontal seal and vertical seal of the packaging bag to cut out easy tearing openings respectively, and the maintenance cost is high.

(4) It is difficult to open the packaging pouches of ordinary packaging materials, and the commercially available easy-to-tear packaging materials are expensive and expensive due to their special formula.

Some of the packaging bags produced by the factory now need to have an easy-tear line on the bag mouth, but the easy-tear line is likely to cause film breakage when the machine starts to be calibrated. Line, this part of the bag is usually processed by hand, which requires more manpower and material resources, which is not conducive to the development of the enterprise;

At the same time, due to the different lengths of each packaging bag, the school operator also needs to replace the easy-to-tear thread cutter wheel according to the length of the packaging bag during the school machine, which is inefficient.

Chinese patent CN207120521U discloses an easy-tear thread embossing machine, comprising: an easy-tear thread cutter wheel, a thread crimping roller, a support seat, a lifting assembly and a transport disc group, and the easy tearing thread cutter wheel is arranged on the support through the lifting assembly The line pressing wheel is arranged under the easy tearing cutter wheel, the front end of the easy tearing cutter wheel is provided with a transport disk group, and the motor drives the easy tearing cutter wheel to rotate through the transmission gear.

This patent does not solve the problem that the film is easily broken during machine calibration, and can only be applied to packaging bags of one length. To change the length of the packaging bag, it is necessary to replace the tear-off cutter wheel and the pressure roller, which is costly and inefficient.

Therefore, there is a need for an easy-tear line embossing machine for packaging bags that can automatically adjust the position of the incision. The embossing machine can automatically adjust the position of the incision and the embossing frequency according to the length of the packaging bag.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision, the embossing machine is suitable for packaging bags of different lengths, and there is no need to adjust the equipment when the edge sealing distance at the bottom of the packaging bag is different; The machine can emboss the missing or incomplete easy-tear lines twice, which effectively improves the pass rate.

For this purpose, the present invention adopts the following technical solutions:

Provided is a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision, including a packaging bag feeding frame, an embossing workbench, a packaging bag receiving frame and an industrial computer, a packaging bag feeding frame and a packaging bag receiving frame. They are respectively arranged on both sides of the embossing table;

The embossing workbench includes a workbench and a sizing mechanism, an embossing wheel, a pressing wheel, a transmission mechanism, and a detection mechanism installed on the workbench. , the detection mechanism is set on the side of the workbench close to the bag receiving rack;

The sizing mechanism includes a pair of first through-beam photoelectric sensors respectively arranged on the upper and lower sides of the workbench, and the workbench is provided with a first light-transmitting hole through which the working light of the first through-beam photoelectric sensor can pass;

The pressing wheel, the embossing wheel and the transmission mechanism are arranged at the middle end of the workbench. above the table top,

The pressing wheel can be rotatably installed on the workbench, the embossing wheel can be rotated and can be vertically lifted and installed on the workbench, and the pressing wheel and the embossing wheel are connected by a transmission mechanism;

The sizing mechanism, the pressing wheel and the detection mechanism are all connected with the industrial control electromechanical.

As a preferred solution for a bag easy-tear line embossing machine that automatically adjusts the position of the incision, both the bag unwinding rack and the packaging bag receiving rack include a bracket and a roller and a pulling wheel rotatably mounted on the bracket Yes, the side of the pulling wheel pair is installed with a first rotary driver that drives the pulling wheel pair to rotate;

Wherein, the packaging bag receiving rack also includes a second rotary driver installed on the side of the roller and driving the roller to rotate.

As a preferred solution for a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision, the detection mechanism includes a fill light set above the workbench and a camera set below the workbench, and the working end of the fill light is vertical The working end of the camera is arranged vertically downward, and the worktable is provided with a light-transmitting groove for the working light of the fill light to pass through, and the camera is electrically connected to the industrial control system.

As a preferred solution of the easy-tear line embossing machine for packaging bags that automatically adjusts the position of the incision, a light hood fixedly installed under the workbench is provided between the fill light and the camera, and the light hood is in the shape of a rectangular cylinder.

As a preferred solution for an easy-tear line embossing machine for packaging bags that automatically adjusts the position of the incision, the detection mechanism further includes a pair of second pair of photoelectric sensors disposed on the upper and lower sides of the worktable, and the worktable is provided with a pair of second photoelectric sensors. A second light-transmitting hole through which the working light of the second through-beam photoelectric sensor can pass. The second through-beam photoelectric sensor is arranged on the side of the fill light, and the second through-beam photoelectric sensor is located in the fill light and the package. Between the bag receiving racks, the second beam-type photoelectric sensor is connected to the industrial control electromechanical.

As a preferred solution for an easy-tear line embossing machine for packaging bags that automatically adjusts the position of the incision, the pressing wheel includes a first roller that is rotatably installed under the table top of the work table, and lift frames are provided on both sides of the work table to lift and lower The frame is provided with a slotted hole extending along the vertical direction, and the embossing wheel includes a second roller horizontally installed inside the slotted hole and clearance fit with the slotted hole;

The middle end of the first roller is sleeved and installed with a first rubber wheel, and the middle end of the second roller is sleeved and installed with a hob wheel, and the first rubber wheel and the hob wheel have the same length;

Both sides of the first rubber wheel are provided with a second rubber wheel sleeved on the first roller, both sides of the hob wheel are provided with a lotus wheel sleeved on the second roller, the second rubber wheel and the lotus wheel The lengths are the same and the working surface of the second rubber wheel abuts on the working surface of the lotus wheel;

The diameter of the second rubber wheel is the same as the diameter of the first rubber wheel. The working surface of the lotus wheel is composed of a plurality of convex and concave surfaces that are evenly distributed around the axis of the lotus wheel and are staggered. The working surface of the convex surface is located outside the working surface of the hob wheel. , the concave working surface is located inside the working surface of the hob wheel;

The side of the first roller is provided with a second rotary driver that drives the first roller to rotate, and above the second roller is an elastic mechanism that drives the second roller to move vertically downward;

The first roller and the second roller are drivingly connected through a transmission mechanism, and the second rotary driver is electrically connected with the controller.

As a preferred solution for a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision, the elastic mechanism includes a pressure block that can be vertically slidably installed inside the slot hole, and a guide post extending vertically upward is installed at the top of the pressure block. The lifting frame is fixedly installed with a guide sleeve slidingly matched with the guide post, the guide post is provided with springs whose ends are respectively abutted on the inner wall of the slot hole and the top of the pressure block, and the pressure block is slidably matched with the second roller.

As a preferred solution of a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision, the top end of the guide post is provided with an external thread, and the top end of the guide post is provided with a nut threadedly connected with the external thread.

As a preferred solution of the easy-tear line embossing machine for packaging bags that automatically adjusts the position of the incision, the circumferential surface of the first rubber wheel is provided with a plurality of arc surfaces evenly distributed around the axis of the first rubber wheel, and the arc surfaces are radially outward. The number of convex, cambered and concave surfaces is the same. When the cambered surface is located at the top end of the first rubber wheel in the working state, the concave surface is located at the bottom end of the lotus wheel.

As a preferred solution for a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision, the transmission mechanism includes a first transmission wheel and a second transmission wheel, the first transmission wheel is fixedly installed on the end face of the pressing wheel, and the second transmission The wheel is fixedly installed on the end face of the embossing wheel. The first transmission wheel is provided with a plurality of cylinders that are evenly distributed around the axis of the first transmission wheel and extend horizontally toward the direction of the second transmission wheel. Slot holes with one-to-one correspondence between the cylinders and clearance fit, the slot holes extend radially inward from the circumferential surface of the second transmission wheel relative to the axis of the second transmission wheel, and the connection between the slot holes and the circumferential surface of the first transmission wheel is provided with rounded corners , the length of the slot is greater than the difference between the distance between the highest point of the convex surface, the lowest point of the concave surface and the axis of the lotus wheel, and the radius of the fillet is equal to the length of the slot.

Beneficial effects of the present invention:

The staff rolls the three-side-sealed packaging bag that has been hot-pressed into a roll and installs it on the packaging bag feeding rack;

The bag feeding rack is used to continuously convey the rolled packaging bags to the embossing table;

Packing bag receiving rack, used to collect the embossed packing bags on the embossing table into rolls;

The sizing mechanism is used to detect the bottom edge of the packaging bag. The packaging bag is often transparent or translucent, especially the fruit packaging bags provided to customers in the supermarket are transparent and colorless, so the first pair of photoelectric photoelectric The laser of the sensor can pass through the packaging bag through the first light-transmitting hole, so that when the packaging bag passes between the first through-beam photoelectric sensors, the first through-beam photoelectric sensor does not send a signal, and the bottom edge of the packaging bag is sealed. It is formed by hot pressing of two transparent plastic films. The bottom edge sealing surface and interior of the packaging bag are uneven, and the diffuse reflectivity is high, so that the laser of the first beam photoelectric sensor is blocked, and the first beam photoelectric sensor is blocked. The sensor sends a signal to the industrial computer;

According to the distance between the sizing mechanism and the pinch wheel, the industrial computer calculates the time required for the packaging bag to move from the sizing mechanism to the pinch wheel, and sends the signal to the pinch wheel after a delay. When the edge moves between the pinch wheel and the embossing wheel, the industrial computer sends a signal to the pinch wheel and makes the pinch wheel work;

The pressing wheel rotates actively and drives the embossing wheel to rotate through the transmission mechanism, so that the pressing wheel and the embossing wheel work together to emboss the easy-tear line on the packaging bag;

The detection mechanism is used to detect the embossed packaging bag, check whether the embossing is complete and whether there is any omission, and send the result signal to the industrial computer;

According to the signal sent by the detection mechanism, the industrial computer sends a signal to the bag unloading rack and the packing bag receiving rack to continue feeding and receiving, or sends a signal to the packing bag unloading rack and the packing bag receiving rack to make it The bags are transported in reverse to re-press any bags with incomplete or missing embossing.

1. The embossing machine is suitable for packaging bags of different lengths, and there is no need to adjust the equipment when the distance between the bottom edge of the packaging bag is different;

2. The embossing machine can emboss the missing or incomplete easy-tear lines twice, which effectively improves the pass rate.

Description of drawings

In order to describe the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a perspective view of a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision according to the embodiment of the present invention;

2 is a top view of a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision according to the embodiment of the present invention;

3 is a side view of a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision according to the embodiment of the present invention;

4 is a perspective view of a packaging bag feeding rack of a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision according to the embodiment of the present invention;

5 is a perspective view of a packaging bag receiving rack of a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision according to the embodiment of the present invention;

6 is a perspective view of an embossing table of a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision according to the embodiment of the present invention;

7 is a perspective view of a workbench of a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision according to the embodiment of the present invention;

8 is a perspective view 1 of a pressing wheel, an embossing wheel and a transmission mechanism of a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision according to the embodiment of the present invention;

Fig. 9 is a perspective view of a pressing wheel, an embossing wheel and a transmission mechanism of a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision according to the embodiment of the present invention;

10 is an axial view of a pressing wheel, an embossing wheel and a transmission mechanism of a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision according to the embodiment of the present invention;

In the picture:

1. Packing bag feeding rack;

2. Workbench; 2a, first light-transmitting hole; 2b, light-transmitting slot; 2c, second light-transmitting hole; 2d, lifting frame; 2d1, slot hole;

3. Length-setting mechanism; 3a, the first photoelectric sensor of the beam type;

4. Pressing wheel; 4a, the first roller; 4b, the first rubber wheel; 4b1, the arc surface; 4c, the second rubber wheel; 4d, the second rotary driver;

5. Embossing wheel; 5a, second roller; 5b, hob wheel; 5c, lotus wheel; 5c1, convex surface; 5c2, concave surface; 5d, elastic mechanism; 5d1, pressing block; 5d2, guide post; 5d3, guide sleeve; 5d4, spring; 5d5, nut;

6. Transmission mechanism; 6a, first transmission wheel; 6a1, cylinder; 6b, second transmission wheel; 6b1, slot; 6b2, rounded corner;

7. Detection mechanism; 7a, fill light; 7b, camera; 7c, hood; 7d, second through-beam photoelectric sensor;

8. Packing bag receiving rack; 8a, bracket; 8b, roller; 8c, pulling wheel pair; 8d, first rotary drive; 8e, second rotary drive.

Detailed ways

The technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments.

Among them, the accompanying drawings are only used for exemplary description, and they are only schematic diagrams, not physical drawings, and should not be construed as restrictions on this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings will be omitted, The enlargement or reduction does not represent the size of the actual product; it is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted.

The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left" and "right" appear The orientation or positional relationship indicated by , "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must be It has a specific orientation, is constructed and operated in a specific orientation, so the terms describing the positional relationship in the accompanying drawings are only used for exemplary illustration, and should not be construed as a limitation on this patent. situation to understand the specific meaning of the above terms.

In the description of the present invention, unless otherwise expressly specified and limited, if the term "connection" or the like appears to indicate a connection relationship between components, the term should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection It can be connected or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal connection between two components or an interaction relationship between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Referring to Figure 1 to Figure 10, a packaging bag easy-tear line embossing machine that automatically adjusts the position of the incision includes a packaging bag discharging rack 1, an embossing workbench, a packaging bag receiving rack 8 and an industrial computer. The bag discharging rack 1 and the packaging bag receiving rack 8 are respectively arranged on both sides of the embossing table;

The embossing workbench includes a workbench 2 and a sizing mechanism 3, an embossing wheel 5, a pressing wheel 4, a transmission mechanism 6, and a detection mechanism 7 installed on the table surface of the workbench 2. The sizing mechanism 3 is arranged on the workbench 2. Close to the side of the packaging bag discharging rack 1, the detection mechanism 7 is arranged on the side of the workbench 2 close to the packaging bag receiving rack 8;

The sizing mechanism 3 includes a pair of first through-beam photoelectric sensors 3a respectively arranged on the upper and lower sides of the table 2, and the workbench 2 is provided with a second beam through which the working light of the first through-beam photoelectric sensor 3a can pass. a light-transmitting hole 2a;

The pressing wheel 4, the embossing wheel 5 and the transmission mechanism 6 are arranged at the middle end of the workbench 2, the pressing wheel 4 is arranged under the table surface of the workbench 2, and the circumferential surface of the pressing wheel 4 is in line with the table top of the workbench 2. Cut, the embossing wheel 5 is set above the table top of the workbench 2,

The pressing wheel 4 is rotatably installed on the table 2, the embossing wheel 5 is rotatable and can be vertically lifted and installed on the table 2, and the pressing wheel 4 and the embossing wheel 5 are connected by a transmission mechanism 6;

The sizing mechanism 3, the pressing wheel 4 and the detection mechanism 7 are all connected with the industrial control electromechanical.

The packaging bag discharging rack 1 and the packaging bag receiving rack 8 both include a bracket and a roller and a pulling wheel pair rotatably installed on the bracket, and a pair of driving wheels is installed on the side of the pulling wheel pair to rotate. a first rotary drive;

The packaging bag receiving rack 8 also includes a second rotary driver installed on the side of the roller and driving the roller to rotate.

The packaging bag receiving rack 8 includes a bracket 8a, a roller 8b and a pair of pulling wheels 8c rotatably mounted on the bracket 8a, and a first pair of pull wheels 8c is installed on the side of the pair of pulling wheels 8c to rotate. Rotary driver 8d, wherein the bag receiving rack 8 also includes a second rotary driver 8e installed on the side of the roller 8b and driving the roller 8b to rotate, the difference between the bag discharging rack 1 and the packaging bag receiving rack 8 is There is no second rotary drive in the bag feeding rack 1;

The packaging bag is loaded or rolled by being sleeved on the roller. The first rotary driver drives the pair of pulling wheels to rotate so as to pull the packaging bag on the table top of the workbench 2 for transmission or reverse transmission. The first rotary driver 8d The drive roller 8b is rotated to roll the packaging bag into a roll.

The detection mechanism 7 includes a fill light 7a arranged above the workbench 2 and a camera 7b arranged below the workbench 2. The working end of the fill light 7a is set vertically downward, and the working end of the camera 7b is set vertically downward. , the worktable 2 is provided with a light-transmitting groove 2b through which the working light of the fill light 7a can pass, and the camera 7b is electrically connected to the industrial control.

The supplementary light 7a is used to irradiate the packaging bag with strong light, and the light emitted by the supplementary light 7a passes through the packaging bag and the light-transmitting groove 2b, and is then captured by the camera 7b, and the camera 7b sends the captured image to the industrial computer, The industrial computer performs intelligent analysis on the image captured by the camera 7b, and determines whether the easy tearing line on the packaging bag is complete.

Between the fill light 7a and the camera 7b, a light shield 7c fixedly installed under the table top of the workbench 2 is provided, and the light shield 7c is in the shape of a rectangular tube.

The light hood 7c is used to block the light entering from the surrounding of the camera 7b, so that only the light emitted downward from the fill light 7a can enter the working area of the camera 7b, so as to prevent the surrounding light from entering the camera 7b, so that the image captured by the camera 7b is affected. interference.

The detection mechanism 7 also includes a pair of second through-beam photoelectric sensors 7d respectively disposed on the upper and lower sides of the table 2, and the workbench 2 is provided with a second through-beam photoelectric sensor 7d for the working light to pass through. Two light-transmitting holes 2c, the second through-beam photoelectric sensor 7d is arranged on the side of the fill light 7a, and the second through-beam photoelectric sensor 7d is located between the fill light 7a and the packaging bag receiving rack 8, the second The through-beam photoelectric sensor 7d is electromechanically connected to the industrial control.

Since the easy tearing line must be arranged below the bottom edge of the packaging bag, the camera 7b does not need to detect the packaging bag in real time. The working principle of the second through-beam photoelectric sensor 7d is the same as that of the first through-beam photoelectric sensor 3a. When the bottom edge of the bag enters between the second beam-type photoelectric sensor 7d, the easy tearing line of the packaging bag is just between the fill light 7a and the camera 7b, and the second beam-type photoelectric sensor 7d sends a signal to the industrial computer. , the industrial computer sends a signal to the camera 7b to make the camera 7b take a picture and feed the image back to the industrial computer.

The pressing wheel 4 includes a first roller 4a that is rotatably installed under the table surface of the worktable 2, and a lifting frame 2d is provided on both sides of the worktable 2. The lifting frame 2d is provided with a slot 2d1 extending along the vertical direction. , the embossing wheel 5 includes a second roller 5a that is horizontally installed inside the slot hole 2d1 and is clearance fit with the slot hole 2d1;

The middle end of the first roller 4a is sleeved and installed with a first rubber wheel 4b, and the middle end of the second roller 5a is sleeved and installed with a hob wheel 5b, and the first rubber wheel 4b and the hob wheel 5b have the same length;

Both sides of the first rubber wheel 4b are provided with a second rubber wheel 4c sleeved on the first roller 4a, and both sides of the cutter wheel 5b are provided with a lotus wheel 5c sleeved on the second roller 5a. The second rubber wheel 4c and the lotus wheel 5c have the same length and the working surface of the second rubber wheel 4c abuts on the working surface of the lotus wheel 5c;

The diameter of the second rubber wheel 4c is the same as the diameter of the first rubber wheel 4b. The working surface of the lotus wheel 5c is composed of a plurality of convex surfaces 5c1 and 5c2 which are evenly distributed around the axis of the lotus wheel 5c and are arranged staggered. The working surface of the convex surface 5c1 is located at Outside the working face of the hob wheel 5b, the working face of the concave surface 5c2 is located inside the working face of the hob wheel 5b;

The side of the first roller 4a is provided with a second rotary driver 4d that drives the first roller 4a to rotate, and above the second roller 5a is provided with an elastic mechanism 5d that drives the second roller 5a to move vertically downward;

The first roller 4a and the second roller 5a are connected in a driving manner through the transmission mechanism 6, and the second rotary driver 4d is electrically connected with the controller.

The slot hole 2d1 is clearance fit with the second roller 5a, so that the second roller 5a can rotate horizontally in the slot hole 2d1, and can also lift up and down in the slot hole 2d1;

The second rotary driver 4d drives the first roller 4a to rotate, and the first roller 4a drives the second roller 5a to rotate through the transmission mechanism 6, so that the first rubber wheel 4b and the second rubber wheel 4c can rotate coaxially and in the same direction, The hob wheel 5b and the lotus wheel 5c can rotate coaxially and in the same direction, and the first rubber wheel 4b and the hob wheel 5b rotate in opposite directions;

Under the resilient force of the elastic mechanism 5d, the lotus wheel 5c rotates so that the convex surface 5c1 and the concave surface 5c2 face the second rubber wheel 4c in turn. When the convex surface 5c1 faces the second rubber wheel 4c, the lotus wheel 5c moves vertically upward, and the concave surface 5c2 faces the second rubber wheel 4c. When the second rubber wheel 4c, the lotus wheel 5c moves vertically downward;

When the convex surface 5c1 faces the second rubber wheel 4c, the first rubber wheel 4b and the hob wheel 5b are separated, and the packaging bag is transported between the first rubber wheel 4b and the hob wheel 5b;

When the packaging bag needs to press out the easy-tear line, the controller sends a signal to the second rotary driver 4d, the second rotary driver 4d drives the first roller 4a to rotate, and the first roller 4a drives the second roller 5a through the transmission mechanism 6 Rotation, the second roller 5a drives the lotus wheel 5c to rotate so that the concave surface 5c2 faces the second rubber wheel 4c, the first rubber wheel 4b and the hob wheel 5b lose the barrier of the convex surface 5c1, so that the elastic mechanism 5d can drive the hob wheel 5b abuts on the first rubber wheel 4b, and the packaging bag located between the first rubber wheel 4b and the hob wheel 5b is pressed out by the hob wheel 5b to tear out the easy-tear line;

After the easy tear line embossing is completed, the second rotary driver 4d drives the first roller 4a to continue to rotate, the first roller 4a drives the second roller 5a to rotate through the transmission mechanism 6, and the second roller 5a drives the lotus wheel 5c to rotate so that The convex surface 5c1 faces the second rubber wheel 4c, and the convex surface 5c1 abuts on the second rubber wheel 4c and gradually pushes the second roller 5a upwards, so that the first rubber wheel 4b and the cutter wheel 5b are separated, and the packaging bag passes through the first roller. Transfer between a rubber wheel 4b and a hob wheel 5b.

The elastic mechanism 5d includes a pressure block 5d1 that can be vertically slidably installed inside the slot hole 2d1. The top of the pressure block 5d1 is installed with a guide post 5d2 extending vertically upward. The guide sleeve 5d3 and the guide post 5d2 are sleeved with a spring 5d4 whose two ends are respectively abutted on the inner wall of the slot 2d1 and the top of the pressure block 5d1, and the pressure block 5d1 slides with the second roller 5a.

The pressure block 5d1 can only move vertically up and down under the guidance of the guide post 5d2 and the guide sleeve 5d3, and the pressure block 5d1 always vertically downward abuts on the second roller 5a under the rebound force of the spring 5d4. The pressure block 5d1 It is slidably matched with the circumferential surface of the second roller 5a so that the second roller 5a can roll under the pressing of the pressing block 5d1, so that the second roller 5a is accompanied by the joint action of the lotus wheel 5c and the elastic mechanism 5d. Its own rotation moves vertically up and down.

The top end of the guide post 5d2 is provided with an external thread, and the top end of the guide post 5d2 is mounted with a nut 5d5 threadedly connected with the external thread.

The nut 5d5 is used to adjust the limit distance that the guide post 5d2 descends. The adjuster can adjust the height of the nut 5d5 to adjust the limit distance that the spring 5d4 drives the second roller 5a to move vertically downward, thereby adjusting the roller 5b When abutting on the first rubber wheel 4b, the force of the hob wheel 5b pressing on the first rubber wheel 4b prevents the hob wheel 5b and the first rubber wheel 4b from cutting the packaging bag.

The circumferential surface of the first rubber wheel 4b is provided with a plurality of arc surfaces 4b1 evenly distributed around the axis of the first rubber wheel 4b. The arc surfaces 4b1 protrude radially outward, and the number of the arc surfaces 4b1 and the concave surfaces 5c2 is the same. When the surface 4b1 is located at the top end of the first rubber wheel 4b, the concave surface 5c2 is located at the bottom end of the lotus wheel 5c.

The arc surface 4b1 is equivalent to a plurality of cams evenly distributed around the axis of the first rubber wheel 4b. When the first rubber wheel 4b rotates so that the arc surface 4b1 is located at the top of the first rubber wheel 4b, the packaging bag covered on the table top of the workbench 2 is arced. The surface 4b1 is lifted up to be tensioned, and then the hob wheel 5b is pressed on the curved surface 4b1 to press out an easy tear line on the packaging bag. Tensioning the packaging bag by the curved surface 4b1 can make the embossing of the packaging bag in a straight line, which will not Squeeze out twisted wires.

The transmission mechanism 6 includes a first transmission wheel 6a and a second transmission wheel 6b. The first transmission wheel 6a is fixedly installed on the end face of the pressing wheel 4, and the second transmission wheel 6b is fixedly installed at the end face of the embossing wheel 5. The wheel 6a is provided with a plurality of cylinders 6a1 which are evenly distributed around the axis of the first transmission wheel 6a and extend horizontally towards the direction of the second transmission wheel 6b. The second transmission wheel 6b is provided with a one-to-one correspondence with each cylinder 6a1 and a clearance fit. The slot 6b1 extends radially inward from the circumferential surface of the second transmission wheel 6b relative to the axis of the second transmission wheel 6b, and the connection between the slot 6b1 and the circumferential surface of the first transmission wheel 6a is provided with a fillet 6b2 , the length of the slot 6b1 is greater than the difference between the distance between the highest point of the convex surface 5c1, the lowest point of the concave surface 5c2 and the axis of the lotus wheel 5c, and the radius of the fillet 6b2 is equal to the length of the slot 6b1.

The rotation of the first roller 4a drives the first transmission wheel 6a to rotate. When the first transmission wheel 6a rotates, the cylinder 6a1 enters each slot hole 6b1 in turn. The second transmission wheel 6b rotates accordingly, and the length of the slot hole 6b1 is greater than the difference between the distance between the highest point of the convex surface 5c1, the lowest point of the concave surface 5c2 and the axis of the lotus wheel 5c, so that the cylinder 6a1 can always be located in the slot hole when the second roller 5a is raised and lowered. Inside 6b1, the radius of the fillet 6b2 is equal to the length of the slot 6b1, that is, the radius of the fillet 6b2 is greater than the difference between the distance between the highest point of the convex surface 5c1, the lowest point of the concave surface 5c2 and the axis of the lotus wheel 5c, thereby making the second roller 5a. When ascending and descending, the cylinder 6a1 can always smoothly enter the inside of the slot 6b1 through the fillet 6b2.

The working principle of the present invention:

The staff rolls the three-side-sealed packaging bag that has been hot-pressed into a roll and installs it on the packaging bag discharge rack 1;

Packing bag feeding rack 1, used to continuously transport the roll-shaped packing bag to the embossing table;

The packaging bag receiving rack 8 is used to collect the embossed packaging bags on the embossing table into rolls;

The sizing mechanism 3 is used to detect the bottom edge of the packaging bag. The packaging bag is often transparent or translucent, especially the fruit packaging bags provided to customers in the supermarket are transparent and colorless, so the first pair of shot type The laser light of the photoelectric sensor 3a can pass through the packaging bag through the first light-transmitting hole 2a, so that when the packaging bag passes between the first through-beam photoelectric sensors 3a, the first through-beam photoelectric sensor 3a does not send a signal, and the packaging bag The bottom edge seal of the bag is formed by hot pressing of two transparent plastic films. The surface and interior of the bottom edge seal of the packaging bag are uneven, and the diffuse reflectance is high, so that the laser light of the first pair-beam photoelectric sensor 3a is blocked. The first through-beam photoelectric sensor 3a sends a signal to the industrial computer;

According to the distance between the sizing mechanism 3 and the pinch wheel 4, the industrial computer calculates the time required for the packaging bag to move from the sizing mechanism 3 to the pinch wheel 4, and sends the signal to the pinch wheel 4 after a delay. When the bottom edge of the packaging bag moves between the pressing wheel 4 and the embossing wheel 5, the industrial computer sends a signal to the pressing wheel 4 and makes the pressing wheel 4 work;

The sizing mechanism 3 makes the embossing machine suitable for packaging bags of different lengths, and there is no need to adjust the equipment when the edge sealing distance at the bottom of the packaging bag is different;

The pressing wheel 4 rotates actively and drives the embossing wheel 5 to rotate through the transmission mechanism 6, so that the pressing wheel 4 and the embossing wheel 5 work together to emboss the packaging bag to produce easy tearing lines;

The detection mechanism 7 is used to detect the embossed packaging bag, to detect whether the embossing is complete or not, and to send the result signal to the industrial computer;

According to the signal sent by the detection mechanism 7, the industrial computer sends a signal to the bag discharging rack 1 and the packaging bag receiving rack 8 to continue feeding and receiving materials, or sends a signal to the packaging bag discharging rack 1 and the packaging bag receiving rack The frame 8 makes it reverse the transmission of the packaging bag, so that the unqualified part is moved back between the pressing wheel 4 and the embossing wheel 5, and then the packaging bag with incomplete or missing embossing is pressed again, thereby effectively improving the qualified Rate.

It should be stated that the above-mentioned specific embodiments are only the preferred embodiments of the present invention and the applied technical principles. It should be understood by those skilled in the art that various modifications, equivalent substitutions, changes and the like can also be made to the present invention. However, as long as these transformations do not depart from the spirit of the present invention, they should all fall within the protection scope of the present invention. In addition, some terms used in the specification and claims of the present application are not limiting, but are only for convenience of description.

Claims (1)

1. The packaging bag easy-tear line embossing machine capable of automatically adjusting the notch position is characterized by comprising a packaging bag discharging frame (1), an embossing workbench, a packaging bag collecting frame (8) and an industrial personal computer, wherein the packaging bag discharging frame (1) and the packaging bag collecting frame (8) are respectively arranged on two sides of the embossing workbench;

the embossing workbench comprises a workbench (2), and a sizing mechanism (3), an embossing wheel (5), a pressing wheel (4), a transmission mechanism (6) and a detection mechanism (7) which are arranged on the table surface of the workbench (2), wherein the sizing mechanism (3) is arranged on one side of the workbench (2) close to the packaging bag material placing frame (1), and the detection mechanism (7) is arranged on one side of the workbench (2) close to the packaging bag material receiving frame (8);

the sizing mechanism (3) comprises a pair of first opposite emission type photoelectric sensors (3 a) which are respectively arranged on the upper side and the lower side of the table surface of the workbench (2), and a first light hole (2 a) through which working light of the first opposite emission type photoelectric sensors (3 a) can pass is arranged on the workbench (2);

the pressing wheel (4), the embossing wheel (5) and the transmission mechanism (6) are arranged at the middle end of the workbench (2), the pressing wheel (4) is arranged below the table top of the workbench (2), the circumferential surface of the pressing wheel (4) is tangent to the table top of the workbench (2), the embossing wheel (5) is arranged above the table top of the workbench (2),

the pressing wheel (4) is rotatably arranged on the workbench (2), the embossing wheel (5) is rotatably and vertically arranged on the workbench (2) in a lifting way, and the pressing wheel (4) and the embossing wheel (5) are in transmission connection through a transmission mechanism (6);

the sizing mechanism (3), the pinch roller (4) and the detection mechanism (7) are electrically connected with an industrial personal computer;

the packaging bag discharging frame (1) and the packaging bag collecting frame (8) both comprise a support, a rolling shaft and a material pulling wheel pair which are rotatably arranged on the support, and a first rotary driver for driving the material pulling wheel pair to rotate is arranged beside the material pulling wheel pair;

the packaging bag collecting frame (8) further comprises a second rotary driver which is arranged beside the roller and drives the roller to rotate;

the detection mechanism (7) comprises a light supplement lamp (7 a) arranged above the workbench (2) and a camera (7 b) arranged below the workbench (2), the working end of the light supplement lamp (7 a) is vertically arranged downwards, the working end of the camera (7 b) is vertically arranged downwards, a light transmission groove (2 b) through which working light of the light supplement lamp (7 a) can pass is formed in the workbench (2), and the camera (7 b) is electrically connected with an industrial personal computer;

a light shield (7 c) fixedly arranged below the table top of the workbench (2) is arranged between the light supplement lamp (7 a) and the camera (7 b), and the light shield (7 c) is rectangular and cylindrical;

the detection mechanism (7) further comprises a pair of second opposite-emission photoelectric sensors (7 d) which are respectively arranged on the upper side and the lower side of the table top of the workbench (2), a second light hole (2 c) through which working light of the second opposite-emission photoelectric sensor (7 d) can pass is formed in the workbench (2), the second opposite-emission photoelectric sensor (7 d) is arranged at the side of the light supplementing lamp (7 a), the second opposite-emission photoelectric sensor (7 d) is located between the light supplementing lamp (7 a) and the packaging bag receiving frame (8), and the second opposite-emission photoelectric sensor (7 d) is electrically connected with the industrial personal computer;

the pressing wheel (4) comprises a first rolling shaft (4 a) rotatably arranged below the table top of the workbench (2), lifting frames (2 d) are arranged on two sides of the workbench (2), a slotted hole (2 d 1) extending along the vertical direction is formed in each lifting frame (2 d), and the embossing wheel (5) comprises a second rolling shaft (5 a) which is horizontally arranged in each slotted hole (2 d 1) and is in clearance fit with the slotted hole (2 d 1);

a first rubber wheel (4 b) is sleeved at the middle end of the first rolling shaft (4 a), a hobbing cutter wheel (5 b) is sleeved at the middle end of the second rolling shaft (5 a), and the first rubber wheel (4 b) and the hobbing cutter wheel (5 b) are the same in length;

second rubber wheels (4 c) sleeved on the first rolling shafts (4 a) are arranged on two sides of the first rubber wheels (4 b), lotus flower wheels (5 c) sleeved on the second rolling shafts (5 a) are arranged on two sides of the hobbing cutter wheels (5 b), the lengths of the second rubber wheels (4 c) and the lotus flower wheels (5 c) are the same, and working surfaces of the second rubber wheels (4 c) abut against the working surfaces of the lotus flower wheels (5 c);

the diameter of the second rubber wheel (4 c) is the same as that of the first rubber wheel (4 b), the working surface of the lotus wheel (5 c) is composed of a plurality of convex surfaces (5 c 1) and concave surfaces (5 c 2) which are uniformly distributed around the axis of the lotus wheel (5 c) and are arranged in a staggered mode, the working surface of the convex surfaces (5 c 1) is located on the outer side of the working surface of the hobbing cutter wheel (5 b), and the working surface of the concave surfaces (5 c 2) is located on the inner side of the working surface of the hobbing cutter wheel (5 b);

a second rotary driver (4 d) for driving the first roller (4 a) to rotate is arranged beside the first roller (4 a), and an elastic mechanism (5 d) for driving the second roller (5 a) to vertically move downwards is arranged above the second roller (5 a);

the first roller (4 a) and the second roller (5 a) are in transmission connection through a transmission mechanism (6), and the second rotary driver (4 d) is electrically connected with the controller;

a plurality of cambered surfaces (4 b 1) uniformly distributed around the axis of the first rubber wheel (4 b) are arranged on the circumferential surface of the first rubber wheel (4 b), the cambered surfaces (4 b 1) protrude outwards in the radial direction, the quantity of the cambered surfaces (4 b 1) is the same as that of the concave surfaces (5 c 2), and when the cambered surfaces (4 b 1) are positioned at the top end of the first rubber wheel (4 b) in a working state, the concave surfaces (5 c 2) are positioned at the bottom end of the lotus wheel (5 c);

the transmission mechanism (6) comprises a first transmission wheel (6 a) and a second transmission wheel (6 b), the first transmission wheel (6 a) is fixedly arranged on the end face of the pressing wheel (4), the second transmission wheel (6 b) is fixedly arranged on the end face of the embossing wheel (5), a plurality of cylinders (6 a 1) which are uniformly distributed around the axis of the first transmission wheel (6 a) and horizontally extend towards the direction of the second transmission wheel (6 b) are arranged on the first transmission wheel (6 a), slotted holes (6 b 1) which correspond to the cylinders (6 a 1) one by one and are in clearance fit are arranged on the second transmission wheel (6 b), the slotted holes (6 b 1) extend inwards in the radial direction from the circumferential surface of the second transmission wheel (6 b) relative to the axis of the second transmission wheel (6 b), fillets (6 b 2) are arranged at the joints of the slotted holes (6 b 1) and the circumferential surface of the first transmission wheel (6 a), the length of the slotted holes (6 b 1) is greater than the highest point of the convex surface (, The distance between the lowest point of the concave surface (5 c 2) and the axis of the lotus wheel (5 c) is different, and the radius of the fillet (6 b 2) is equal to the length of the slotted hole (6 b 1).

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