CN210309246U

CN210309246U - Automatic edge folding and bubble pressing mechanism for top and bottom cover box

Info

Publication number: CN210309246U
Application number: CN201921176305.2U
Authority: CN
Inventors: 曾庆厚
Original assignee: Dongguan Jianji Packaging Machinery Co ltd
Current assignee: Dongguan Jianji Packaging Machinery Co ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-04-14
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses an automatic edge folding and bubble pressing mechanism for a top and bottom cover box, which comprises a frame, a conveying device, an edge folding device and a bubble pressing device, wherein the conveying device, the edge folding device and the bubble pressing device are arranged on the frame; the edge folding device comprises an edge folding positioning mechanism and an edge folding mechanism, wherein the edge folding positioning mechanism comprises a positioning device for fixing a side plate of the top and bottom cover box, a bending device for bending the facial tissue of the top and bottom cover box and a lifting device for adjusting the height of the top and bottom cover box relative to the rack; the bubble pressing mechanism of the bubble pressing device comprises a bubble pressing part and a bubble pressing motor, wherein the bubble pressing motor drives the bubble pressing part to move up and down relative to the lifting plate so as to perform bubble pressing treatment on the top and bottom cover box. The utility model has the advantages of simple integral structure, automatic hem and pressure bubble, degree of automation is high, and machining efficiency is high, and application scope is wide, and the practicality is strong.

Description

Automatic edge folding and bubble pressing mechanism for top and bottom cover box

Technical Field

The utility model relates to a world lid box technical field, in particular to automatic hem bubble pressing mechanism of world lid box.

Background

The top and bottom cover box refers to a style of box. The cover of the paper box is 'heaven' and the bottom is 'earth', so the paper box is called a heaven-earth cover box and is widely applied to various packaging boxes such as various hardcover gift packaging boxes, shoe boxes, underwear boxes, shirt boxes, mobile phone boxes and the like.

The top and bottom cover box is formed by bonding facial tissue and a paper board, wherein the facial tissue is uniformly coated with glue, then the paper board is placed at the upper end of the facial tissue, and the folding and the pressing are carried out to form the top and bottom cover box. The folding and pressing are processes of erecting the side plates and then adhering the facial tissue to the side plates.

According to the traditional top and bottom cover box pressing process, in order to avoid bubbles, a semi-manual processing mode is adopted, during pressing, a positioning plate is adopted to position the top and bottom cover box, the position of a side plate of the top and bottom cover box relative to the positioning plate is manually adjusted, facial tissue is manually bent inwards, and the facial tissue is pressed onto the side plate by a pressing part; in the prior art, only the technology of laminating the surface paper of the top and bottom cover box is adopted, and the technology of pressing bubbles is not adopted, so that bubbles exist at the bottom of the top and bottom cover box after lamination is completed, the product quality is affected, and the appearance is not attractive.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is according to the not enough of above-mentioned technique, provide a simple structure, automatic hem and bubble pressing, degree of automation is high, machining efficiency is high, and application scope is wide, and the practicality is strong automatic hem bubble pressing mechanism of world lid box.

In order to solve the technical problem, the technical scheme of the utility model is that: an automatic edge folding and bubble pressing mechanism for a top and bottom cover box comprises a rack, and a conveying device, an edge folding device and a bubble pressing device which are arranged on the rack, wherein the edge folding device is positioned at the left end of the bubble pressing device; the conveying device comprises a first conveying device and a second conveying device, the first conveying device comprises a first slide rail and a second slide rail, the first slide rail stretches across the left end and the right end of the rack and is positioned at the front end, the second slide rail is positioned at the rear end, a first slide block capable of sliding left and right relative to the first slide rail is arranged on the first slide rail, a second slide block capable of sliding left and right relative to the second slide rail is arranged on the second slide rail, the second conveying device is fixedly arranged at the lower ends of the first slide block and the second slide block and comprises a third slide rail and a fourth slide rail, the third slide rail is fixedly arranged at the lower end of the first slide block, the fourth slide rail is fixedly arranged at the lower end of the second slide block, clamping devices used for clamping the top and bottom cover boxes are arranged on the third slide rail and the fourth; the edge folding device comprises an edge folding positioning mechanism and an edge folding mechanism, the edge folding positioning mechanism comprises a positioning device for fixing a top and bottom cover box side plate, a bending device for bending surface paper of the top and bottom cover box and a lifting device for adjusting the height of the top and bottom cover box relative to the rack, the positioning device comprises a positioning cylinder and a positioning plate, the positioning cylinder drives the positioning plate to move left and right relative to the rack to position the top and bottom cover box side plate, the bending device is positioned at the upper end of the positioning device and comprises a bending cylinder and a bending part, the bending part is parallel to the positioning plate, the bending cylinder drives the bending part to inwards bend the surface paper of the top and bottom cover box, the lifting device is positioned below the positioning device and comprises a lifting cylinder and a lifting plate, and the lifting cylinder drives the lifting plate to move up and down relative to the rack to adjust the height of the top, the edge folding mechanism is positioned above the edge folding positioning mechanism and comprises an edge folding part and an edge folding cylinder, and the edge folding cylinder is fixed on the frame and is used for driving the edge folding part to move up and down relative to the lifting plate so as to fold the facial tissue of the top and bottom cover box; the bubble pressing device comprises a bubble pressing positioning mechanism and a bubble pressing mechanism, the bubble pressing positioning mechanism comprises a positioning device of the edge folding positioning mechanism, a bending device and a lifting device, the bubble pressing mechanism is positioned above the bubble pressing positioning mechanism and comprises a bubble pressing part and a bubble pressing motor, and the bubble pressing part is driven by the bubble pressing motor to move up and down relative to the lifting plate so as to press bubbles of the top and bottom cover box.

As to the utility model discloses a further explanation:

preferably, the clamping devices arranged on the third slide rail and the fourth slide rail respectively comprise a third slide block and a fourth slide block which can slide left and right relative to the third slide rail and the fourth slide rail, the lower ends of the third slide block and the fourth slide block are respectively provided with a clamping part and a clamping cylinder, and the clamping cylinder drives the clamping part to move back and forth so as to clamp or loosen the top and bottom cover box.

Preferably, the positioning device comprises four groups of positioning cylinders and four groups of positioning plates, the four groups of positioning cylinders and the four groups of positioning plates are respectively positioned at the periphery of the top and bottom cover box side plate, the positioning cylinders are installed on the support frame, the support frame comprises two support guide rods and a support seat, a fifth slider is arranged on the support guide rods and can slide relative to the support guide rods, the positioning plates are installed on the fifth slider, the positioning cylinders drive the fifth slider to drive the positioning plates to move relative to the frame to position the top and bottom cover box side plate, the bending device is installed at the upper end of the fifth slider through an installation seat, the bending cylinders are installed on the installation seat, and the bending portion is in a U shape.

Preferably, the bubble pressing motor of the bubble pressing mechanism is fixedly installed on the rack through a fixed seat, a slide is arranged on the inner periphery of the fixed seat, and the bubble pressing portion is arranged in the slide and can slide up and down relative to the slide to press bubbles in the top and bottom cover box.

Preferably, first conveyor's first slide rail and second slide rail fixed mounting respectively are on the slide rail frame board, both ends are equipped with respectively and bear the guide arm about the frame, two middle parts that bear the guide arm are equipped with the lead screw, two bear the guide arm movably and wear to locate in two slide rail frame boards, the lead screw wears to locate in two slide rail frame boards through the adjustment bearing, through rotating the relative distance of two adjustable slide rail frame boards of lead screw.

Preferably, the right ends of the two slide rail frame plates penetrate through power shafts, the power shafts penetrate through the two slide rail frame plates through power bearings, and the power shafts drive the first sliding blocks and the second sliding blocks to slide on the first slide rail and the second slide rail.

Preferably, the device further comprises a control mechanism, and the control mechanism is electrically connected with the conveying device, the edge folding device and the bubble pressing device and controls the operation of the conveying device, the edge folding device and the bubble pressing device.

The utility model has the advantages that: the conveying device of the utility model comprises a first conveying device and a second conveying device, the second conveying device is fixedly arranged at the lower ends of a first slide block and a second slide block and comprises a third slide rail fixedly arranged at the lower end of the first slide block and a fourth slide rail fixedly arranged at the lower end of the second slide block, clamping devices for clamping the top and bottom cover box are respectively arranged on the third slide rail and the fourth slide rail, each clamping device comprises a third slide block and a fourth slide block which can slide left and right relative to the third slide rail and the fourth slide rail, the lower ends of the third slide block and the fourth slide block are respectively provided with a clamping part and a clamping cylinder, the clamping cylinders drive the clamping parts to move back and forth to clamp or loosen the top and bottom cover box, the first conveying device comprises a first slide rail crossing the left and right ends of a frame and positioned at the front end and a second slide rail positioned at the rear end, the first slide rail is provided with a first slide block which can slide left and right relative to the first slide, the second slide rail is provided with a second slide block which can slide left and right relative to the second slide rail, the design structure is simple, the clamping fastness is effectively ensured, the top and bottom cover box is conveyed from the edge folding device to the bubble pressing device and conveyed out of the bubble pressing device, and the automation degree is high; the edge folding device comprises an edge folding positioning mechanism and an edge folding mechanism, the edge folding positioning mechanism comprises a positioning device for fixing a top and bottom cover box side plate, a bending device for bending top and bottom cover box surface paper and a lifting device for adjusting the height of the top and bottom cover box relative to the rack, the positioning device comprises a positioning cylinder and a positioning plate, the positioning cylinder drives the positioning plate to move left and right relative to the rack to position the top and bottom cover box side plate, the bending device is positioned at the upper end of the positioning device and comprises a bending cylinder and a bending part, the bending part is parallel to the positioning plate, the bending cylinder drives the bending part to inwards bend the surface paper of the top and bottom cover box, the current situation that the surface paper is inwards bent by adopting a semi-manual processing mode in the prior art is overcome, the lifting device is positioned below the positioning device and comprises a lifting cylinder and a lifting plate, and the lifting cylinder drives the lifting plate to move up and down relative to the rack to adjust the top The height of the side plate of the top and bottom cover box relative to the positioning plate is adjusted by pushing the lifting plate from bottom to top, so that the defect that the position of the side plate of the top and bottom cover box relative to the positioning plate is manually adjusted in the prior art is overcome; the bubble pressing device comprises a bubble pressing positioning mechanism and a bubble pressing mechanism, the bubble pressing positioning mechanism comprises a positioning device of the edge folding positioning mechanism, a bending device and a lifting device, the bubble pressing mechanism is positioned above the bubble pressing positioning mechanism and comprises a bubble pressing part and a bubble pressing motor, the bubble pressing part is driven by the bubble pressing motor to move up and down relative to the lifting plate so as to press bubbles of the top and bottom cover box, the folded paper edge processing is carried out on the top and bottom cover box, and the pressing and bubble pressing processing are carried out, so that the product yield and the attractiveness are effectively improved; fourth, first conveyor's first slide rail and second slide rail are fixed mounting respectively on the slide rail frame board, both ends are equipped with respectively and bear the guide arm about the frame, two middle parts that bear the guide arm are equipped with the lead screw, two bear the guide arm movably and wear to locate two slide rail frame boards, the lead screw is worn to locate in two slide rail frame boards through the adjustment bearing, through rotating the relative distance of two adjustable slide rail frame boards of lead screw, the width of the sky lid box of adaptable different models, its practicality is stronger, and application scope is wider, the utility model discloses overall structure is simple, automatic hem and pressure bubble, and degree of automation is high, and machining efficiency is high, and application scope is wide, and the practicality is strong.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the exploded structure of the present invention.

Fig. 3 is an exploded view of the present invention from another angle.

Fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Fig. 5 is a schematic view of the overall structure of another aspect of the present invention.

Fig. 6 is a schematic structural view of fig. 2 with a part of the frame removed.

In the figure: 1. a frame; 2. a first slide rail; 3. a second slide rail; 4. a first slider; 5. a second slider; 6. a third slide rail; 7. a fourth slide rail; 8. positioning the air cylinder; 9. positioning a plate; 10. bending the air cylinder; 11. a bending part; 12. a lifting cylinder; 13. a lifting plate; 14. a hem part; 15. a flanging cylinder; 16. a bubble pressing part; 17. a bubble pressing motor; 18. a third slider; 19. a fourth slider; 20. a gripping section; 21. a clamping cylinder; 22. a support guide rod; 23. a supporting seat; 24. a fifth slider; 25. a slideway; 26. a slide rail frame plate; 27. a bearing guide rod; 28. a screw rod; 29. adjusting the bearing; 30. a power shaft; 31. a power bearing; 32. a belt; 33. a servo motor.

Detailed Description

The structure and operation of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, the utility model relates to an automatic edge folding and bubble pressing mechanism for a top and bottom cover box, which comprises a frame 1, and a conveying device, an edge folding device and a bubble pressing device which are arranged on the frame 1, wherein the edge folding device is arranged at the left end of the bubble pressing device, the conveying device is arranged above the edge folding device and the bubble pressing device, and is used for conveying the top and bottom cover box from the edge folding device to the bubble pressing device and out of the bubble pressing device; the conveying device comprises a first conveying device and a second conveying device, the first conveying device comprises a first slide rail 2 and a second slide rail 3, the first slide rail 2 stretches across the left end and the right end of the rack 1 and is positioned at the front end, the second slide rail 3 is positioned at the rear end, a first slide block 4 capable of sliding left and right relative to the first slide rail 2 is arranged on the first slide rail 2, a second slide block 5 capable of sliding left and right relative to the second slide rail 3 is arranged on the second slide rail 3, the second conveying device is fixedly arranged at the lower ends of the first slide block 4 and the second slide block 5 and comprises a third slide rail 6 and a fourth slide rail 7, the third slide rail 6 and the fourth slide rail 7 are fixedly arranged at the lower end of the first slide block 4, the clamping device is fixedly arranged at the lower end of the second slide block 5, the clamping device is respectively provided with a clamping device for clamping a top and bottom cover box; the flanging device comprises a flanging positioning mechanism and a flanging mechanism, the flanging positioning mechanism comprises a positioning device for fixing a top and bottom cover box side plate, a bending device for bending top and bottom cover box facial tissue and a lifting device for adjusting the height of the top and bottom cover box relative to a rack 1, the positioning device comprises a positioning cylinder 8 and a positioning plate 9, the positioning cylinder 8 drives the positioning plate 9 to move left and right relative to the rack 1 to position the top and bottom cover box side plate, the bending device is positioned at the upper end of the positioning device and comprises a bending cylinder 10 and a bending part 11, the bending part 11 is parallel to the positioning plate 9, the bending cylinder 10 drives the bending part 11 to inwards bend the facial tissue of the top and bottom cover box, the lifting device is positioned below the positioning device and comprises a lifting cylinder 12 and a lifting plate 13, the lifting cylinder 12 drives the lifting plate 13 to move up and down relative to the rack 1 to adjust the height of the top and bottom cover box side plate relative to, the edge folding mechanism is positioned above the edge folding positioning mechanism and comprises an edge folding part 14 and an edge folding cylinder 15, and the edge folding cylinder 15 is fixed on the frame 1 and is used for driving the edge folding part 14 to move up and down relative to the lifting plate 13 to fold the facial tissue of the top and bottom cover box; the bubble pressing device comprises a bubble pressing positioning mechanism and a bubble pressing mechanism, the bubble pressing positioning mechanism comprises a positioning device of the edge folding positioning mechanism, a bending device and a lifting device, the bubble pressing mechanism is located above the bubble pressing positioning mechanism and comprises a bubble pressing portion 16 and a bubble pressing motor 17, and the bubble pressing motor 17 drives the bubble pressing portion 16 to move up and down relative to the lifting plate 13 to perform bubble pressing treatment on the top and bottom cover box.

As shown in fig. 2 to 3, the clamping devices arranged on the third slide rail 6 and the fourth slide rail 7 respectively comprise a third slide block 18 and a fourth slide block 19 which can slide left and right relative to the third slide rail 6 and the fourth slide rail 7, the lower ends of the third slide block 18 and the fourth slide block 19 are respectively provided with a clamping part 20 and a clamping cylinder 21, and the clamping cylinder 21 drives the clamping part 20 to move back and forth to clamp or loosen the top and bottom cover box.

As shown in fig. 1 to 4, each positioning device includes four positioning cylinders 8 and four positioning plates 9, the four positioning cylinders 8 and the four positioning plates 9 are respectively located at the periphery of each top and bottom cover box side plate, the positioning cylinders 8 are mounted on a support frame, the support frame includes two support guide rods 22 and a support seat 23, a fifth slider 24 is disposed on each support guide rod 22, the fifth slider 24 can slide relative to the support guide rods 22, the positioning plates 9 are mounted on the fifth sliders 24, the positioning cylinders 8 drive the fifth sliders 24 to drive the positioning plates 9 to move relative to the frame 1 to position the top and bottom cover box side plates, the bending device is mounted at the upper ends of the fifth sliders through mounting seats, the bending cylinders 10 are mounted on the mounting seats, and the bending portions 11 are U-shaped.

As shown in fig. 1 to 3, the bubble pressing motor 17 of the bubble pressing mechanism is fixedly mounted on the frame 1 through a fixing seat, a slide 25 is disposed on the inner periphery of the fixing seat, and the bubble pressing portion 16 is disposed in the slide 25 and can slide up and down relative to the slide 25 to press bubbles in the top and bottom cover box.

As shown in fig. 3, the first slide rail 2 and the second slide rail 3 of the first conveying device are respectively and fixedly mounted on the slide rail frame plates 26, the left and right ends of the frame 1 are respectively provided with a bearing guide rod 27, the middle parts of the two bearing guide rods 27 are provided with a screw rod 28, the two bearing guide rods 27 are movably arranged in the two slide rail frame plates 26 in a penetrating manner, the screw rod 28 is arranged in the two slide rail frame plates 26 in a penetrating manner through an adjusting bearing 29, and the relative distance between the two slide rail frame plates 26 can be adjusted by rotating the screw rod 28 so as to adapt to different models of top and bottom cover boxes.

As shown in fig. 2 to fig. 3, a power shaft 30 penetrates through the right ends of the two slide rail frame plates 26, the power shaft 30 penetrates through the two slide rail frame plates 26 through a power bearing 31, and the power shaft 30 drives the first slider 4 and the second slider 5 to slide on the first slide rail 2 and the second slide rail 3. In this embodiment, the left end of power shaft 30 is equipped with active bearing, and active bearing is connected with the servo motor 33 that sets up on frame 1 through belt 32, the left end of two slide rail frame boards 26 also is equipped with power bearing 31 respectively, and it has belt 32 to enclose on power bearing 31, and the transmission effect through belt 32 drives first slider 4 and second slider 5 and slides on first slide rail 2 and second slide rail 3.

The folding device is characterized by further comprising a control mechanism, wherein the control mechanism is electrically connected with the conveying device, the folding device and the bubble pressing device and controls the operation of the folding device and the bubble pressing device.

In the description of the present application, it is to be understood that the terms "inward", "upper", "lower", "front", "rear", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

The above, only the utility model discloses preferred embodiment, all be according to the utility model discloses a technical scheme does any slight modification, the equivalent change and the modification to above embodiment, all belong to the utility model discloses technical scheme's within range.

Claims

1. The utility model provides an automatic hem bubble pressing mechanism of world lid box which characterized in that: the folding device is positioned at the left end of the bubble pressing device, and the conveying device is positioned above the folding device and the bubble pressing device and is used for conveying the top and bottom cover boxes from the folding device to the bubble pressing device and conveying the top and bottom cover boxes out of the bubble pressing device; the conveying device comprises a first conveying device and a second conveying device, the first conveying device comprises a first slide rail and a second slide rail, the first slide rail stretches across the left end and the right end of the rack and is positioned at the front end, the second slide rail is positioned at the rear end, a first slide block capable of sliding left and right relative to the first slide rail is arranged on the first slide rail, a second slide block capable of sliding left and right relative to the second slide rail is arranged on the second slide rail, the second conveying device is fixedly arranged at the lower ends of the first slide block and the second slide block and comprises a third slide rail and a fourth slide rail, the third slide rail is fixedly arranged at the lower end of the first slide block, the fourth slide rail is fixedly arranged at the lower end of the second slide block, clamping devices used for clamping the top and bottom cover boxes are arranged on the third slide rail and the fourth; the edge folding device comprises an edge folding positioning mechanism and an edge folding mechanism, the edge folding positioning mechanism comprises a positioning device for fixing a top and bottom cover box side plate, a bending device for bending surface paper of the top and bottom cover box and a lifting device for adjusting the height of the top and bottom cover box relative to the rack, the positioning device comprises a positioning cylinder and a positioning plate, the positioning cylinder drives the positioning plate to move left and right relative to the rack to position the top and bottom cover box side plate, the bending device is positioned at the upper end of the positioning device and comprises a bending cylinder and a bending part, the bending part is parallel to the positioning plate, the bending cylinder drives the bending part to inwards bend the surface paper of the top and bottom cover box, the lifting device is positioned below the positioning device and comprises a lifting cylinder and a lifting plate, and the lifting cylinder drives the lifting plate to move up and down relative to the rack to adjust the height of the top, the edge folding mechanism is positioned above the edge folding positioning mechanism and comprises an edge folding part and an edge folding cylinder, and the edge folding cylinder is fixed on the frame and is used for driving the edge folding part to move up and down relative to the lifting plate so as to fold the facial tissue of the top and bottom cover box; the bubble pressing device comprises a bubble pressing positioning mechanism and a bubble pressing mechanism, the bubble pressing positioning mechanism comprises a positioning device of the edge folding positioning mechanism, a bending device and a lifting device, the bubble pressing mechanism is positioned above the bubble pressing positioning mechanism and comprises a bubble pressing part and a bubble pressing motor, and the bubble pressing part is driven by the bubble pressing motor to move up and down relative to the lifting plate so as to press bubbles of the top and bottom cover box.

2. The automatic flanging and foaming mechanism of the top and bottom cover box of claim 1, wherein: the clamping devices arranged on the third sliding rail and the fourth sliding rail respectively comprise a third sliding block and a fourth sliding block which can slide left and right relative to the third sliding rail and the fourth sliding rail, the lower ends of the third sliding block and the fourth sliding block are respectively provided with a clamping part and a clamping cylinder, and the clamping cylinder drives the clamping part to move back and forth so as to clamp or loosen the top and bottom cover box.

3. The automatic flanging and foaming mechanism of the top and bottom cover box of claim 2, wherein: the positioning device comprises four groups of positioning cylinders and four groups of positioning plates, the four groups of positioning cylinders and the four groups of positioning plates are respectively positioned at the periphery of the top and bottom cover box side plate, the positioning cylinders are installed on the supporting frame, the supporting frame comprises two supporting guide rods and a supporting seat, a fifth slider is arranged on each supporting guide rod, the fifth slider can slide relative to the supporting guide rods, the positioning plates are installed on the fifth sliders, the positioning cylinders drive the fifth sliders to drive the positioning plates to move relative to the frame to position the top and bottom cover box side plates, the bending device is installed at the upper ends of the fifth sliders through a mounting seat, the bending cylinders are installed on the mounting seat, and the bending portions are U-shaped.

4. The automatic edge folding and foaming mechanism of the top and bottom cover box according to claim 3, wherein: the bubble pressing motor of the bubble pressing mechanism is fixedly installed on the rack through a fixing seat, a slide is arranged on the inner periphery of the fixing seat, and the bubble pressing portion is arranged in the slide and can slide up and down relative to the slide to press bubbles of the top and bottom cover box.

5. The automatic hemming and foaming mechanism of a cover and lid box according to any one of claims 1 to 4, wherein: first conveyor's first slide rail and second slide rail fixed mounting respectively are on the slide rail frame board, both ends are equipped with respectively and bear the guide arm about the frame, two middle parts that bear the guide arm are equipped with the lead screw, two bear the guide arm movably and wear to locate in two slide rail frame boards, the lead screw wears to locate in two slide rail frame boards through the adjustment bearing, through rotating the relative distance of two adjustable slide rail frame boards of lead screw.

6. The automatic edge folding and foaming mechanism of the top and bottom cover box of claim 5, wherein: the right ends of the two slide rail frame plates penetrate through power shafts, the power shafts penetrate through the two slide rail frame plates through power bearings, and the power shafts drive the first sliding blocks and the second sliding blocks to slide on the first slide rails and the second slide rails.

7. The automatic flanging and foaming mechanism of the top and bottom cover box of claim 6, wherein: the folding device is characterized by further comprising a control mechanism, wherein the control mechanism is electrically connected with the conveying device, the folding device and the bubble pressing device and controls the operation of the folding device and the bubble pressing device.