JPH043721A - pallet feeding device - Google Patents

Abstract

PURPOSE:To automate the placement of moldings onto a pallet on the supporting base by pivotally fitting the base of a pallet delivery member capable of rising and falling having sucking members to an erect support frame provided on the side of the supporting base, sucking the moldings and extracting them from metal molds, and laying the pallet delivery member down. CONSTITUTION:A supporting member 18 which is erected free in advance and retreat is provided on the side of a supporting base 37 on which a pallet is placed and a lifting body 21 is provided in a lift supporting part 19 of the supporting member 18. A taking out member 23 of which base is pivotally fitted with a support shaft 22, capable of rising and falling motion is provided in the lifting body 21. A number of sucking members 33 are fitted in the taking out member 23. A movable metal mold 7 and a fixed metal mold 6 are provided above such taking out mechanism 10 to mold moldings A. When the metal mold 7 is moved, the lifting body 21 is lifted, advanced, and the moldings A are sucked by the sucking member 33 of the taking out member 23. The taking out member 23 is then reversed, lifted down and brought down in the (a) direction, and then the moldings A are placed on the supporting base 37. As a result, placing the moldings A onto the pallet 36 can be performed automatically.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention involves removing synthetic resin molded products such as expanded polystyrene fish boxes from molds, and sequentially loading the molded products onto a pallet placed on a support. After the pallet on which the molded product is placed and held is removed from the support, another pallet is automatically placed on the support at a height of 2°1.

This relates to a pallet feeding device that can feed and load 3 degrees.

(Prior art) Synthetic resin molded products are taken out of the molding die and sequentially loaded onto a pallet placed on a support base. The work of transporting the pallet to the desired location, manually placing another pallet on the stand, and waiting for the next loading is as follows:
Feeding the pallets onto the abutment was time consuming and inefficient, and required a great deal of labor.

(Problems to be Solved by the Invention) There was a dilemma as to how to automate the supply of pallets onto the support base in order to streamline and save labor.

(Means for Solving the Problems) The present invention automatically supplies pallets onto a support base, and includes a support base on which the pallet is placed, a pallet upright support frame, and a pallet upright support frame. A pallet supply mechanism is provided on the side of the support base, and includes a pallet delivery member having a base pivotably attached to the base, a suction member, and a pallet delivery member that can be raised and lowered. The present invention provides a pallet supply device, characterized in that the pallet supply device is placed on the support.

(Function) The pallet waiting in the pallet upright support frame of the pallet supply mechanism arranged on the side of the support base is suctioned and held by the suction member provided on the pallet delivery member that rotates upright, and the pallet delivery member rotates and falls down. Then, the pallet can be placed on the support base, suction and holding can be released, and another pallet can be automatically fed onto the support base.

(Example) Molded product removal stacking system equipped with the pallet supply device 1 of the present invention! 2 with reference to FIGS. 1, 2, and 3, a synthetic resin molding mechanism 5 is mounted on the beam portion 4 of the frame 3, and this synthetic resin molding mechanism 5 has a fixed mold 6 and a movable mold. The mold 8 consists of 7 molds, and the mold 8 is placed at a high position 1, in this example approximately 4 m above the floor surface.
Installed on the beam section 4 with a diameter of m! A molded product removal mechanism 10 is disposed below the beam portion 4 and on the floor surface 9.

The synthetic resin molding mechanism 5 has a movable mold 7 attached to a mounting plate 13 which is slidably attached to a kite rod 11.11 and moved forward or backward by a drive cylinder 12.

In this example, four box-shaped container bodies made of foamed synthetic resin as synthetic resin molded products (A) are assembled, and the opening of the container body (
b) The molding is performed on the side facing the movable mold 6.

The molded product retrieval mechanism 10 is provided with a guide strip 15 on the upper part of the machine base 14 and an operating cylinder 17 whose base is attached to a support 16.The rod 17a end of the operating cylinder 17 is attached to the back and the guide strip 15 A support member 18 is provided which is movable forward and backward along the support member 18, and an elevating body 21 is provided which is movable up and down along the vertical guide portion 20 of the elevating body support portion 19 of the support member 18.

A take-out member 23 is attached to the elevating body 21, the base of which is pivotally connected by a support shaft 22, and is movable up and down.
As shown in the figure, when ascending, the lower body part 21A of the elevating body 21 is raised to the first stage by rapid expansion of the rod 24a of the vertical cylinder 24 provided on the support member 18, and then, as shown in FIG. A nut-shaped connecting member 26 is fitted onto the vertical screw 1125 which is rotatable but cannot be moved in the axial direction, and the servo motor 27 rotates the compressed threaded rod 25 to connect the elevating body 21 via the nut-shaped connecting member 26. The upper body part 21B is the second Pi
The upper limit of the take-out member 23, which is formed to be raised and raised together with the elevating body 21, that is, the accuracy of the raising stop position is ensured by a ball screw drive means.

The lower limit of the elevating body 21, in this example, the lower limit of the upper body portion 21B to which the take-out member 23 is attached is the lowest position at which the take-out member 23 is reversed! In other words, the stacking status is detected by the phototube 28 so as to immediately respond to the first stacking lowering position, the second stacking lowering position 1, the third stacking lowering position, and the fourth stacking lowering position, which are the stacking process of molded products. controlled.

As shown in FIG. 2 and FIG.
The support shaft 30 is connected to the support shaft 30 via a connecting member 32 attached to the end of a rod 31a of a vertical cylinder 31 that pivots the lower support shaft 30 to the upper body portion 21B and pivots the intermediate portion to the upper body portion 21B to move the take-out member 23 up and down.
is rotated so that it can rise and fall freely in the direction of arrow (a), and a large number of suction members 33.33 are attached to the front part of the extraction member 23, in other words, to the front part, and these suction members 33 have a suction pad at the tip. 33a, and is attached to the rod portion 33b so as to elastically retract and buffer, and as shown in FIG.
Attachment 34 for attaching the suction member 33 to the extraction member 23.
34 are arranged in the shape of a base plate, and the attachment of the suction member 33 is selected in advance by considering the shape and size of the molded product, the state of the suction pad abutting portion, etc.

The ejection member 23 is undulated by 90 degrees such that it is vertical when standing up and horizontal when it is folded down.

A molded product stacking mechanism 35 is provided near the molded product take-out mechanism 10, and the molded product stacking mechanism 35, as shown in FIG.
A support shaft 40 provided at the center of the lower surface of the support 37 is rotatably attached to a bearing 39 provided at the center of a support shaft 38 whose one end is connected and fixed to the base of the machine base 14. As shown in the figure, the end of the rod 42a of the horizontal cylinder 42 whose base end is attached to the support part 41 on the lower surface of the support base 37 is attached to the support piece part 43 hanging down around the peripheral part of the support base 37. By controlling the forward length of the rod 42a of 42 and selecting the degree of extension, the rotation angle of the support 37 is set to a predetermined angle, and the rotation angle of the support 37 is set to a predetermined angle.
The pallet 36 placed on the pallet 7 is rotated by a predetermined angle (10 to 90 degrees), and the molded products (A), (A), etc. are placed on the pallet 36.
・Then, the base 37 is returned to its original state, and the stacking position is shifted on top of the group of molded products (a), (b) stacked on the pallet 36, and the next molded products (a), ( b)...The group is formed so that it can be stacked, and the support base 37 is arranged corresponding to the lying position 1 of the take-out member 23.

As shown in FIG. 2, FIG. 3, FIG. 7, FIG. 8, and FIG. A support shaft 47 is pivotally supported on a bearing portion 46 of an upright support frame 45, and a pallet delivery member 48 is provided with its base pivotally attached and capable of raising and lowering freely.As shown in FIG. A pallet positioning member 51 is provided on the vertical rod portions 45a, 45a of the upright support frame 45.
．． The suction pad 49a of the suction member 4949 is attracted to the pallet 36 which is positioned and waiting by the pallet 51, and the pallet delivery member 48 is moved up and down by the operation of the cylinder 52. As shown in FIG. The command switch 53 is pressed by placing another newly supplied pallet, and the pallet is placed on the support base 37! It is then formed so that the next cycle of molding, unloading, stacking, and pallet feeding can be performed.

Following the molded product M heavy mechanism, as shown in FIG. The pressing member 57 is made to be able to freely hit the end face of the pallet 36 placed on the support base 37, the cylinder 56 is actuated, the rod 56a is extended, the pressing member 57 is made to hit the pallet, and the rod 56a The pallet 36 is detached from the support base 37 by extension, and the pallet 36 stacked with molded products is transferred onto the roller conveyor 54.

The molded product take-out Pi crushing device according to the present invention is constructed as described above and operates as follows.

The mold 8 is closed by the advance of the movable mold 7, the cavity (not shown) is filled with pre-foamed synthetic resin particles, and the molded product (a) is formed into a foamed resin molded product by heating and foaming and fusing.
The mold 7 opens as the movable mold 7 retreats, and the elevating body 2
1, the take-out member 23 is brought to a predetermined vertical value 1 between the fixed mold 6 and the movable mold 7, and then, as the support member 18 moves forward, the take-out member 23 approaches the fixed mold 6, and the suction member 33 The suction bat 33a at the tip is brought into contact with the inner bottom surface (c) of the molded product (a) attached to the fixed mold 6, and vacuum suction is applied to cause the ejection pin of the fixed mold 6 to protrude.
By retreating the support member 18 and retracting the integrated take-out member 23, the molded product (A) is released from the fixed mold 6, is held by the take-out member 23, and the elevating body 21 is lowered to reach the predetermined lower limit of the first stack. The take-out member 23 rotates around the support shaft 22 and falls down, reaches directly above the pallet 36, releases the vacuum suction by the suction pad 33a, and the molded product (A) is released onto the pallet 36. It will be placed.

In this example, since there are four molded products each, the four molded products (a) are simultaneously stacked on the pallet 36 to form a first stacked molded product group, and the take-out member 23 stands up.

During this time, in the synthetic resin molding mechanism 5, the mold 8 is closed, a new molded product (A) is molded, the mold 8 is opened, and the elevating body 2 is molded.
1 and is at a predetermined upper limit position.
moves forward as the support member 18 moves forward, and the suction member 33.
33... is brought into contact with the molded product (A), vacuum suction is applied, and the ejector pin protrudes, the support member 18 retreats, and the integral take-out member 23 retreats, thereby forming the molded products (A), (A), ( stomach)
, (a) are held by the take-out member 23, the elevating body 21 descends, the phototube 28 detects the upper end of the first stage molded product, and the upper body part 21B stops at the predetermined position 1 of the second stage stacking. , the take-out member 23 is collapsed around the support shaft 22, and the molded product (A) is obtained.

(A), (A), and (A) are released onto the first stacked molded product group, stacked, and the take-out member 23 is rotated in the opposite direction around the support shaft 22 to stand up again.

After the first stage is stacked, the support 37 is moved by the operation of the horizontal cylinder 42.
The pallet 36 rotates at a predetermined angle together with the molded products, and when stacking the second tier, the stacked products are stacked on top of the first tier with shifted positions, and the first tier of molded products (A), (A), and (I) are stacked on top of the first tier. ), the opening (b) of (a) is exposed, and when the third stage is stacked, the pallet returns to its original state together with the support base 37, and the second
The third stacked molded product group stacked on top of the stacked molded product group is stacked with the stacking positions shifted.

In this case, the third stacking position 1 is the same as the loading state of the first Pi stacked molded product group, the fourth Pi tank stacking position is the same as the loading state of the second stacked molded product group, and the first stage, 2nd stage,
The corner of the opening of the third stage molded product group is always exposed, and the fourth
The opening of the stepped molded product group has an upward opening shape.

In this way, in this example, four tiers of molded products are stacked on the pallet 36, and when the stacking of the fourth tier of molded products is completed, the pushing cylinder 56 is activated in time, and the pressing member 57 is pressed against the end surface of the pallet 36. collides with each other, and due to further extension of the rod, 4
The pallet 36 loaded with stacked molded products (a), (a)... is removed from the support base 37 and transferred to the roller conveyor 5.
4 and transported to a desired location.

When the pallet 36 loaded with molded products (A) is released from the support base 37, the pallet delivery member 48 which has fallen down stands up and is positioned to pick up another pallet supported by the upright support frame 45 by the adsorption members 49, 49. ... is held by the pallet transfer member 48 by suction and holding, and another pallet is brought onto the support base 37 by the fall of the pallet transfer member 48, and the command switch 53 is pressed by this another pallet, and is held by suction. is released and another pallet is placed on the support base 37 to stand by for stacking molded products.

Thereafter, molding, unloading, stacking, and pallet feeding are performed automatically, and a series of molded product unloading, stacking, and transport is repeated.

In this way, the molded products (A) and (B) are placed on the pallet in an open manner, and after stacking the molded products (A) on the pallet in the specified tiers, the molded products (A)
, (a) The pallet 36 loaded with... is removed from the support base 37, and then the pallet delivery member 48 of the pallet supply mechanism 4 on the side of the support base 37 is laid down, and another pallet is placed on the support base. Automatically place and stack the molded products in a series of cycles, and continue this cycle.
Achieve automation.

In this example, the pallet 36 is rotated by the horizontal cylinder 42, and molded products (a), (a), etc. are alternately shifted and stacked. However, if the pallet is not rotated, Molded products (a), (a).

It goes without saying that (A) and (A) can be vertically aligned and stacked.

(Effects of the Invention) The pallet supply device of the present invention is placed on a support base, and when a pallet with molded products loaded on the pallet is removed from the support base, another pallet is automatically delivered at a synchronous time. Since pallets are supplied, it is possible to automate pallet supply and significantly reduce labor.

[Brief explanation of drawings]

Figure 1 is a side view of the molded product take-out stacking device of the present invention;
The figure is a front view seen from the line ■-■ in Figure 1, and the figure 3 is the front view as seen from the line ■ in Figure 1.
A plan view as seen from the -■ line, Figure 4 is a sectional view of the main parts showing the related structure of the support member and the elevating body, Figure 5 is a detailed blue diagram of the main parts of the ball screw mechanism, and Figure 6 is the molded product volume. FIG. 7 is a side view of the main part of the pallet supply mechanism; FIG. 8 is a front view of the main part of the pallet supply mechanism; FIG.
The figure is a sectional view of a main part showing the related structure between the abutment of the molded product stacking mechanism and the pallet delivery member of the 5-pallet supply mechanism. IA...Pallet supply mechanism, 36...Pallet, 3
7... Abutment, 45... Standing support frame, 48... Pallet delivery member, 49... Adsorption member, (a)... Molding patent Applicant: Mitsubishi Yuka Verdische Co., Ltd. Shares Company Daisen Industries Co., Ltd.

Claims (1)

[Claims] (1) A pallet supply mechanism provided with a support for placing a pallet, a pallet upright support frame, and a pallet delivery member whose base is pivotally attached to the upright support frame, is equipped with a suction member, and is movable up and down. A pallet supply device characterized in that a pallet delivery member is disposed on a side of the support base, a pallet delivery member is laid down, and a pallet to be sucked is placed on the support base.