JP3473459B2 - Packaging equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging device, and more particularly to a packaging device provided with a carry-in conveyor for carrying a product (object to be packaged) supplied to a carry-in port of a packaging machine into a packaging section inside the packaging machine.

[0002]

2. Description of the Related Art In a conventional packaging machine, it is generally practiced to provide a carry-in conveyor, like a stretch packaging machine, for carrying goods supplied to the carry-in entrance of the packaging machine onto an elevator inside the packaging machine. However, it is necessary to pay particular attention to hygiene when the products to be packaged include fresh food. For this reason, it is necessary to clean the carry-in conveyor when the carry-in conveyor is contaminated due to a part of the product being spilled from the tray, which is the container, or the tray being tumbled during the transportation of the product. However, conventionally, no special measures have been taken regarding the cleaning of the carry-in conveyor, and the worker cleans the carry-in conveyor by inserting his / her hand from the product carry-in opening opened at the front end of the packaging machine.

However, in the above-mentioned cleaning method, a packaging device of a type in which an operator puts a product on the carry-in end of the carry-in conveyor can manage the cleaning, but the product carry-in port is narrow, which makes the work difficult and is sufficient. It was difficult to perform proper cleaning, and it was not always sufficient for hygiene management. In addition, not only is it easy to get tired because the work is performed in an unreasonable posture, but there is also the problem of contact with the members inside the packaging machine, especially when a product size detection sensor is placed around the carry-in conveyor. Could damage them. In particular, in order to improve the processing speed of the packaging machine, in the packaging device of the type in which the centering mechanism is arranged at the product carry-in port of the packaging machine and the supply conveyor for supplying the product to the carry-in port is installed, Since the carry-in entrance is further narrowed and it is difficult to insert a hand from there, it is practically impossible to clean the carry-in conveyor unless the centering mechanism is removed.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional circumstances, and allows cleaning of a carry-in conveyor to be carried out easily, safely and reliably, and in particular, a centering mechanism and a supply are provided at a product carry-in entrance. It is an object of the present invention to provide a packaging device that can easily and safely perform the cleaning operation of the carry-in conveyor even in a type including a conveyor.

[0005]

SUMMARY OF THE INVENTION In order to solve such a problem, the present invention provides a supply conveyor projecting outside the packaging machine at the carry-in entrance, and supplies the goods to the carry-in entrance of the packaging machine by the conveyor. In a packaging apparatus including a carry-in conveyor that carries in the supplied product onto an elevator, the supply conveyor is moved to a position that is at least out of the carry-in port in a direction orthogonal to the product transfer direction with respect to the carry-in port of the packaging machine. A slide mechanism is provided, and when the supply conveyor is slid, a part or the whole of the carry-in conveyor can be pulled out from the carry-in port to the outside of the packaging machine (claim 1).

At the upper part of the carry-in port, a pair of arms sandwiches the end of the product supplied by the supply conveyor, which is also used in the conventional apparatus for improving the packaging finish of the packaging machine. As a result, a centering mechanism for centering the product is provided (claim 2). In such a case, it is preferable that the arm of the centering mechanism is detachably attached with a member that comes into contact with both end portions of the product when centering the product (claim 3).

In the packaging apparatus of the type in which the supply conveyors are arranged in series, the frame of the supply conveyor is generally arranged adjacent to the machine frame of the packaging machine, but in order to move the supply conveyor smoothly, It is preferable to employ a simple slide mechanism. That is, as a specific means of the slide mechanism, a guide base plate having a guide groove for guiding the slide of the supply conveyor is projectingly provided in the machine frame of the packaging machine, and the guide frame is fitted to the guide groove on the supply conveyor side frame. The slide mechanism is configured by projecting a support plate provided with three pins, the three pins are arranged at intervals, and the guide groove wraps the frame of the supply conveyor in the set state. Three inclined grooves that are close to the machine frame of the machine, and parallel grooves that are connected to at least two inclined grooves and separate the frame of the supply conveyor from the machine frame of the packaging machine when sliding, the supply conveyor The frame is provided with casters (claim 4). Further, while the packaging machine is performing the packaging operation, that is, since the supply conveyor needs to be stable in the set state of the supply conveyor, the frame of the supply conveyor and the machine frame of the packaging machine are set. A lock mechanism for fixing the frame of the supply conveyor in the state is provided (Claim 5).

A belt conveyor is often used as the carry-in conveyor. In such a case, if the belt can be rotated by the handle means, the entire conveyor does not necessarily have to be pulled out of the packaging machine from the carry-in entrance. It is possible to clean the rotating belt surface. Therefore, the present invention is a belt conveyor in which a part of the carry-in conveyor can be pulled out from the carry-in port to the outside of the packaging machine, and the belt conveyor is provided with a handle that can manually rotate the belt. It is characterized in that (claim 6). Further, the belt conveyor is not necessarily one type, when two types of different conveying speeds are arranged, that is, in order to increase the processing speed, both belt conveyors are arranged with a part of them overlapped and the conveying speed is increased. In some cases, a slow conveyor belt conveys the goods to the elevator. In such a case, the carry-in conveyor is configured such that a part of the carry-in conveyor can be pulled out from the carry-in port to the outside of the packaging machine, and the both belt conveyors are provided with handles capable of manually rotating the belts (claim 7). ).

[0009]

According to the present invention, after the supply conveyor is moved by sliding or the like from the carry-in entrance, the carry-in conveyor is partially or wholly pulled out from the carry-in entrance to the outside of the packaging machine and then cleaned. The carry-in conveyor is pushed into the packaging machine and set at a predetermined position (claim 1). Then, according to the second aspect, the product supplied to the carry-in entrance by the supply conveyor is carried into the carry-in conveyor while being centered by the centering mechanism and transferred to the elevator. Further, according to claim 3, even if the contact member of the centering mechanism is a large member, the supply conveyor can be slid without any trouble by removing the member, and the contact member corresponding to the product shape can be appropriately used. Can be exchanged and used.

According to a fourth aspect of the present invention, which is a specific slide mechanism of the supply conveyor, the frame of the supply conveyor is moved by the pins moving along the inclined grooves of the guide groove at the initial stage of the slide of the supply conveyor. Since it is separated from the machine frame, the supply conveyor can be smoothly moved without coming into contact with the packaging machine, and can be brought close to a predetermined adjacent position of the packaging machine again at the time of returning, that is, at the time of setting. Further, since the pin can move up and down in the guide groove, the supply conveyor can slide without any trouble even when the floor surface is inclined or uneven. Further, although the supply conveyor is pushed in the initial stage of sliding of the supply conveyor, the pin having the farthest component force for separating the supply conveyor from the packaging machine works more efficiently and the pushing operation becomes easier. Moreover, according to the fifth aspect, the supply conveyor during the setting is fixed to the machine frame of the packaging machine by the lock mechanism and is stabilized.

According to the sixth and seventh aspects of the present invention, it is not necessary to pull out the entire carry-in conveyor to the outside of the packaging machine.
The entire belt can be cleaned by wiping the belt surface exposed to the outside of the packaging machine while rotating the handle to rotate the belt of the belt conveyor with a part thereof pulled out.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings in the case of a stretch wrapping machine. 1 and 2 show an outline of a stretch wrapping machine for wrapping products using a stretch film. The wrapping machine A has a front wall (left side plate in the figure) 1a of its machine frame 1 with a predetermined upper height from the bottom. A product carry-in port 2 that opens up to that point is formed, and the supply conveyor B is movably arranged adjacent to the front surface of the front wall 1a. Further, a centering mechanism C having a drive unit 51 fixed to the upper portion thereof is disposed on the front wall 1a, and a movable arm of the centering mechanism C is provided.
52 is placed on the supply conveyor B. An elevator 3 is installed in the machine frame 1 of the packaging machine A so as to be vertically movable at a substantially central portion, and a film transport mechanism 4a is provided above the elevator 3.
A well-known packaging unit 4 including a film folding mechanism 4b and the like is provided. Further, in the machine frame 1, a carry-in conveyor 5 that forms a transport path from the carry-in port 2 to the elevator 3 is installed, and the conveyor 5 carries the product a from the carry-in port 2 onto the elevator 3. Is configured.

While the product a, which is placed on the supply conveyor B by the worker or is conveyed to the supply conveyor B through the conveyance line L in the previous process, is conveyed to the packaging machine A on the supply conveyor B. In addition, it is supplied to the carry-in conveyor 5 from the carry-in port 2 while being centered by the centering mechanism C. Then, in the packaging machine A, the product a is carried into the elevator 3 by the carry-in conveyor 5, and the product a is lifted to the packaging unit 4 by the film transport mechanism 4a and is stretched and stretched in advance by the film transport mechanism 4a. The wrapping operation is performed such that the film fold-up mechanism 4b folds the end of the film to the bottom side of the product a while being pushed up. In the above description, in order to enable the carry-in conveyor 5 to be taken in and out, the carry-in port 2 is included below the carrying surface of the carry-in conveyor 5, but the substantial product carry-in port includes the carrying surface of the carry-in conveyor. It is the upper part.

Next, each part will be described in more detail including the gist of the present invention. A case where a belt conveyor is used as the carry-in conveyor 5 and a first conveyor 501 and a second conveyor 502 having different transfer speeds are combined is illustrated. Both conveyors 50
Numerals 1 and 502 are composed of a plurality of belts arranged at a predetermined interval on the support frame 5a, and belts of both conveyors are arranged alternately. The transport surface of the first conveyor 501 is arranged slightly above the transport surface of the second conveyor 502. The first conveyor 501 forms a transport path from the carry-in port 2 to the elevator 3 approximately in the middle thereof, and the second conveyor 502 reaches the top of the elevator 3 in a state where most of the second conveyor 502 overlaps the first conveyor 501. Are arranged so as to form a transport path of.

Driving units 6 and 6'are mounted on the support frame 5a, and the driving roller 7 of the first conveyor 501 linked to the driving unit 6 drives and rotates the conveyor 501. The drive roller 8 associated with the second conveyor 502 drives and rotates the second conveyor 502 at a slower speed than the first conveyor 501. The first conveyor 501 quickly takes in the product a supplied to the carry-in port 2 by the supply conveyor B into the packaging machine, and carries the product a onto the elevator 3 by the second conveyor 502 at a predetermined timing. The second conveyor 502 is provided with a stopper 9 projecting on the conveying surface at a predetermined interval so that the front end of the product a is abutted against the stopper 9, whereby the product a is used as the front side reference. Is transported to the elevator 3. The front end of the product a is abutted against the stopper 9 while the product is being carried out by utilizing the difference in the carrying speeds of the first conveyor and the second conveyor. The drive unit 6 is provided with a handle 10 for manually rotating the drive roller 7, and the drive unit 6'is provided with a handle 10 'for manually rotating the drive roller 8, and both handles 10, 10 are provided. The first conveyor 501 and the second conveyor 502 are respectively rotated by the rotation operation of '(see FIG. 4).

Further, on the support frame 5a of the carry-in conveyor 5, erection stands 11 and 11 are integrally provided on both left and right sides thereof, and sliding rails 11a are attached to the erection stand 11 and guide rollers are provided at the tips thereof. 12 is mounted, and the carry-in conveyor 5 is movably mounted on the machine frame 1 of the packaging machine A via each slide rail 11a and the guide roll 12. Machine frame 1 of packaging machine A
In this case, mounting frames 13 each having a U-shaped cross section are formed on the inner surfaces of the left and right sides, respectively, and the sliding rails 11a of the erection table 11 and the guide rolls 12 are movably fitted to the mounting frames 13 for carrying in. A conveyor 5 is installed on the machine frame 1.
Therefore, the carry-in conveyor 5 can be pulled out to the outside of the machine frame 1 through the carry-in entrance 2 by moving the sliding rail 11a and the guide roll 12 in the mounting frame 13. In the embodiment, the case where the carry-in conveyor 5 is not the whole but the rear end of the first conveyor 501 is pulled out of the machine frame 1 is exemplified (see FIG. 3). In order to stabilize the mounting frame 13 at each position in which the carry-in conveyor 5 is set in the machine frame 1 (see FIG. 2) and pulled out of the machine frame 1 (see FIG. 3), the sliding is performed. Lock portions 14, 14 'for stopping the guide roll 12 of the rail 11a at each of the above-mentioned positions are provided (see FIG. 5).

The supply conveyor B is a transfer device installed on the front surface of the packaging machine A adjacent to the carry-in port 2, and a roller conveyor 22 is formed on the upper surface of a portable frame 20 having casters 21 on the bottom surface. The roller conveyor 22 serves as an upstream side transport path of the carry-in conveyor 5. Further, the supply conveyor B has a drive unit for driving the roller conveyor 22 in the frame 20, and
Gates 23, 23 'are arranged at predetermined intervals on the conveying surface of the roller conveyor 22 so that the gates 23, 23' can be retracted at appropriate times, and the product a conveyed to the roller conveyor 22 is appropriately controlled by the control operation of the gates 23, 23 '. To the carry-in conveyor 5.

A slide mechanism 30 is formed between the supply conveyor B and the machine frame 1 of the packaging machine A so that the supply conveyor B can slide along the front wall 1a of the machine frame 1. That is, in the supply conveyor B, a support plate 31 is horizontally projected on the bottom bottom surface of the frame 20, and three pins 32a, 32b, 32c are provided on the support plate 31 at both left and right side portions and a substantially central portion. Attach downwards and integrally. Further, on the machine frame 1 side, a guide groove 34 for fitting the pins 32a, 32b, 32c is provided.
A guide base plate 33 having a, 34b, and 34c formed thereon is projected. Then, the pins 32a, 32b, 32c and the guide grooves 34a, 34c
The slide mechanism 30 is formed by b and 34c (see FIGS. 6 and 7).
reference). Reference numeral 35 in the figure is a reinforcing plate that reinforces the central portion of the support plate 31.

The guide grooves 34a and 34b are formed in the right half portion and the left half portion of the guide base plate 33, respectively, and the guide groove 34c is formed substantially in the front center portion of the left guide groove 34b. Further, the guide grooves 34a, 34b are respectively constituted by inclined grooves 36a, 37a having a short length at the right end and long straight parallel grooves 36b, 37b continuous at the upper ends of the respective inclinations.
By inserting the pins 32a and 32b into the 37a and positioning the pins 32a and 32b at the slanted lower end of the groove,
Set B close to packaging machine A so that it is in a set state.
The guide groove 34c is composed of only the inclined groove 38a with which the pin 32c is fitted when the supply conveyor B is in the set state, and the portion corresponding to the parallel groove is left open.

The inclined grooves 36a, 37a, 38a are inclined forward at an angle of about 15 degrees, whereby the frame 20 of the supply conveyor B is pushed when the supply conveyor B is pushed laterally. And the parallel grooves 36b, 37
b is the frame 2 when the feed conveyor B is further pushed.
0 acts to move while maintaining a state in which it is separated from the machine casing 1 by a certain distance. Further, the inclined groove 38a acts only in the initial stage of the pushing operation of the supply conveyor B, and is located at the position farthest from the pushing side and in front of the inclined grooves 36a, 37a. The component force of separating from is the largest, which facilitates the initial operation of the supply conveyor B and reduces the load applied to the pin 32b.
The guide groove 34c prevents the pin 32c from sliding resistance by leaving the portion corresponding to the parallel groove in the released state, thereby smoothing the movement of the supply conveyor B after it is separated from the machine frame 1.

A handle 39 is attached to the pushing side of the supply conveyor B, that is, on the upper right end of the frame 20 in the illustrated embodiment, so that an operator can hold the handle 39 and push or pull the supply conveyor B (see FIG. 2). Further, between the frame 20 of the supply conveyor B and the front wall 1a of the machine casing 1, in order to fix the supply conveyor B in the set state, for example, a buckle type locking mechanism 40 is detachably attached (Fig. 8).
reference).

The centering mechanism C is a front wall 1a of the machine casing 1.
A drive unit 51 is attached to the upper part, and a pair of arms 52 operated by the drive unit 51 are projected downward on the supply conveyor B. The pair of arms 52 are projected onto the roller conveyor 22 of the supply conveyor B, and are moved toward and away from each other toward the center of the transfer path of the roller conveyor 22 (which is also the center of the transfer path of the carry-in conveyor 5). Abutting members 53, 53 that come into contact with the side end of the product a are detachably attached to the lower ends of the 52, 52. In the centering mechanism C, the abutting members 53, 53 moving from the outside toward the center come into contact with both end portions of the product a which is stopped by hitting the gate 23 'on the roller conveyor 22 of the supply conveyor B. Then, the product a is centered, that is, the center of the product a in the width direction is aligned with the center of the conveyance path (see FIG. 9).

Each abutting member 53 is detachably attached to the arm 52 by a lock member 54 such as a buckle type or screwing, and is removed when the abutting member 53 interferes with the movement of the supply conveyor B. To do. Also, product a
Even when the size and shape of the product are irregular, the contact member 53 is removed and replaced with a contact member corresponding to the product (FIG. 10).
reference).

The operation of cleaning the carry-in conveyor 5 of the packaging machine A will be explained. First, with the power of the packaging machine turned off and the packaging operation stopped, the centering mechanism is first operated.
The contact members 53, 53 of C are removed from the arms 52, 52, and then the lock mechanism 40 of the supply conveyor B is disengaged. And
When the operator holds the handle 39 of the supply conveyor B and pushes the frame 20 diagonally forward so as to move away from the machine frame 1, the pins 32a, 32b, 32c of the slide mechanism 30 cause the inclined groove 36 to move.
a, 37a, 38a, and when the pins 32a, 32b move to the parallel grooves 36b, 37b, the feed conveyor B is slid linearly in the lateral direction, so that the feed conveyor B slides. The front of the carry-in port 2 of No. 1 is released. After that, the carry-in conveyor 5 is pulled out to the outside of the machine frame 1 along the attachment frame 13 of the machine frame 1 (see FIG. 2), and the handles 10, 10 '
Are sequentially rotated to rotate the first conveyors 501 and 502, and both conveyors are cleaned using a cleaning tool such as a brush or a rag.

Thereafter, the carry-in conveyor 5 is pushed into the machine frame 1 to return it to a predetermined set position, and the supply conveyor B is pulled back to the pins 32a, 32b, 32c of the slide mechanism 30.
After returning to the set state where the inclined grooves 36a, 37a, 38a reach the inclined lower ends of the inclined grooves 36a, 37a, 38a, the lock mechanism 40 of the supply conveyor B is locked, and the contact members 53, 5 of the centering mechanism C are locked.
Work is completed by attaching 3 to the arms 52, 52.

According to the above embodiment, the supply conveyor B
With the provision of the above, the carrying-in process of the product is speeded up, and since the supply conveyor B is slid in the direction orthogonal to the product carrying direction, even if the carrying line L is on the upstream side, the product can be supplied without any trouble. Compared to the case where the conveyor B can be moved and the front surface of the carry-in port 2 of the machine frame 1 is opened by rotating the transport surface of the supply conveyor,
The configuration of the supply conveyor B is not limited and can be easily configured.
Further, in the embodiment, since the centering mechanism C is provided at the upper part of the carry-in port, more specifically, at the carry-out end part of the supply conveyor B, it is the most rational arrangement for forming a compact packaging machine and performing good packaging. is there.

The present invention is not limited to the embodiment shown above, but is also applicable to the following cases. The type of wrapping machine is not limited to the stretch wrapping machine, and even in the case of the stretch wrapping machine, the carry-in conveyor has a built-in weighing mechanism like the weighing and wrapping price machine, so that the product can be transported at the start or during the transportation. Of course, it may be a form of weighing. In the embodiment, the moving direction of the supply conveyor is set to the direction (horizontal direction) orthogonal to the product conveying direction, but if it can be moved to a position that does not hinder the withdrawal of the carry-in conveyor, the product conveying direction is opposite (vertical direction). Direction), or may be rotated above or below the transport surface. Except for claim 2 and the claims subordinate thereto, it goes without saying that a centering mechanism may not be provided, and even in a claim that requires a centering mechanism, the arrangement is not limited to the product carry-in port. It may be arranged upstream or downstream thereof. Except for claim 3 and the claims subordinate thereto, it is needless to say that the contact member of the centering mechanism does not have to be removable, and in that case, the contact member does not move when the supply conveyor is moved. It is sufficient if it can be retracted to a position that does not interfere. For example, the contact member is rotatably attached to the arm of the centering mechanism, and the contact member is rotated to the retracted position when the supply conveyor is moved.

[0028]

According to the present invention, after the supply conveyor is moved from the carry-in port by sliding or the like, the carry-in conveyor is partially or wholly cleaned from the carry-in port to the outside of the packaging machine. Similarly, the carry-in conveyor can be carried out easily and safely (claim 1). In particular, since the supply conveyor can be slid in the direction orthogonal to the product transfer direction, even if another transfer device is arranged on the upstream side of the supply conveyor when the packaging device is incorporated in the production line, the supply conveyor can be It can be easily moved from the carry-in port. And
According to the second aspect, since the product supplied to the carry-in port by the supply conveyor is carried to the carry-in conveyor and transferred to the elevator while being centered, the posture of the product supplied to the supply conveyor is in the transport direction. Even in the case where the pieces are disjointed in the orthogonal direction, it is possible to surely perform the packaging with a good packaging finish. Further, according to claim 3, not only can the supply conveyor be slid smoothly by removing the abutment member of the centering mechanism, but also a proper abutment member corresponding to the size and shape of the product can be replaced. The centering operation is surely performed, and there is no fear of damage to the product.

According to claim 4 of the present invention, since the frame of the supply conveyor is separated from the machine frame of the packaging machine at the initial stage of sliding of the supply conveyor, the supply conveyor can be moved smoothly without contacting the packaging machine. In addition, when returning, that is, when setting, the packaging machine can be reliably brought closer to the predetermined position of the packaging machine. Further, since the pin can move up and down in the guide groove, the supply conveyor can slide without any trouble even when the floor surface is inclined or uneven, and further, when the supply conveyor is pushed at the initial stage of sliding. Dynamic operation becomes easy. Therefore, the handling operability of the supply conveyor can be improved. Moreover, claim 5
According to this, since the supply conveyor at the time of setting is fixed to the machine frame of the packaging machine by the lock mechanism and stabilized, the packaging work after cleaning is not hindered.

According to the sixth and seventh aspects of the present invention, it is not necessary to pull out the entire carry-in conveyor to the outside of the packaging machine.
With a part of it pulled out, the handle can be rotated to clean the whole while rotating the belt of the belt conveyor, so cleaning work becomes easier and compared to when pulling out the entire carry-in conveyor. As a result, a structure for supporting the weight of the carry-in conveyor that has been pulled out is unnecessary, and the apparatus can be simplified.

[Brief description of drawings]

FIG. 1 is a partially sectional side view showing an outline of a packaging device of the present invention.

FIG. 2 is a plan view showing a main part of FIG.

FIG. 3 is a plan view showing a state where a carry-in conveyor is pulled out.

FIG. 4 is a perspective view of a carry-in conveyor portion.

FIG. 5 is an enlarged cross-sectional view showing a pull-out guide portion of the carry-in conveyor with a part cut away, (1) showing a state in which the carry-in conveyor is pulled out, and (2) showing a state in which the carry-in conveyor is set.

FIG. 6 is a plan view showing a slide mechanism of a supply conveyor.

FIG. 7 is an exploded perspective view of a slide mechanism.

FIG. 8 is a perspective view showing a lock mechanism of a supply conveyor.

FIG. 9 is a partially sectional front view of the centering mechanism.

FIG. 10 is a perspective view showing the attachment of the arm of the centering mechanism and the contact member.

[Explanation of symbols]

A: Packing machine B: Supply conveyor C:
Centering mechanism 1: Machine frame 2: Carrying port 3:
Elevator 5: Carry-in conveyor 501: First conveyor 502:
Second conveyor 10, 10 ': Handle 20: Supply conveyor frame 21: Casters 30: Slide mechanism 31:
Support plates 32a, 32b, 32c: Pin 33:
Guide base plates 34a, 34b, 34c: guide grooves 36a, 37a, 38a: inclined grooves 36
b, 37b: Parallel groove 40: Lock mechanism 52: Arm 53:
Abutting member

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65B 11/00-11 / 58,35 / 24 B65B 49/00-49/16 B65G 21/12

Claims (7)

(57) [Claims] 1. A carry-in conveyor for arranging a supply conveyor projecting outside the packaging machine at the carry-in entrance to supply the goods to the carry-in entrance of the packaging machine by the conveyor and carrying in the supplied goods to an elevator. In the provided packaging device, the supply conveyor is provided with a slide mechanism for moving the supply conveyor in a direction orthogonal to the product transfer direction to at least a position away from the carry-in port with respect to the carry-in port of the packaging machine, and when the supply conveyor is slid, A packaging apparatus, wherein part or all of the carry-in conveyor can be pulled out from the carry-in port to the outside of the packaging machine. 2. The centering mechanism according to claim 1, wherein an upper end of the carry-in port is provided with a centering mechanism for centering the product supplied by the supply conveyor by sandwiching the end part of the product with a pair of arms. Packaging equipment. 3. The packaging apparatus according to claim 2, wherein the arm of the centering mechanism is detachably mounted with members that come into contact with both side ends of the product when the product is centered. 4. The frame of the supply conveyor according to claim 1, wherein the frame of the supply conveyor is arranged adjacent to a machine frame of a packaging machine, and the machine frame of the packaging machine is guided by a slide of the supply conveyor. The slide mechanism is configured by projecting a guide base plate having a guide groove formed therein and projecting a support plate having three pins fitted to the guide groove on the frame on the supply conveyor side. The pins are arranged at intervals, and the guide grooves are connected to three inclined grooves that bring the frame of the supply conveyor in the set state close to the machine frame of the packaging machine and at least two inclined grooves. And a parallel groove that separates the frame of the supply conveyor from the machine frame of the packaging machine when sliding, and a caster is provided on the frame of the supply conveyor. 5. The packaging according to claim 1, wherein the frame of the supply conveyor and the machine frame of the packaging machine are provided with a lock mechanism for fixing the frame of the supply conveyor in a set state. apparatus. 6. The belt conveyor according to claim 1, wherein the carry-in conveyor is a belt conveyor configured so that a part of the carry-in conveyor can be pulled out from the carry-in entrance to the outside of the packaging machine, and the belt can be manually rotated on the belt conveyor. A packaging device having a handle arranged therein. 7. The product according to claim 1, wherein the carry-in conveyor is two types of belt conveyors having different transport speeds, and both belt conveyors are arranged so as to partially overlap each other, and a belt conveyor having a slow transport speed is used. Is carried into the elevator, the carry-in conveyor is configured so that a part of the carry-in conveyor can be pulled out from the carry-in entrance to the outside of the packaging machine, and the both belt conveyors are each provided with a handle for rotating the belt manually. The packaging device is characterized by being.