Carton edge folding equipment

Abstract

The utility model relates to the technical field of carton production, in particular to carton edge folding equipment which comprises a conveying belt, the conveying belt is arranged on one side of a supporting platform, an edge folding groove structure is arranged in the center of the top face of the supporting platform, and displacement driving structures are symmetrically arranged on the edge folding groove structure in the conveying direction of the conveying belt. The displacement driving structure on one side of the edge folding groove structure is connected with a material collecting plate, and the displacement driving structure on the other side of the edge folding groove structure is connected with a material pushing plate. The edge folding groove structure comprises an edge folding groove. The edge folding groove is a rectangular groove opening, a rectangular plate is arranged in the center of the edge folding groove, an elastic assembly is connected between the rectangular plate and the bottom face of the edge folding groove, an annular side plate is arranged on the outer edge of the rectangular plate, an elastic assembly is connected between the annular side plate and the bottom face of the edge folding groove, and the outer edge of the annular side plate abuts against the inner groove face of the edge folding groove in a sliding mode. A pressing and folding device is arranged over the edge folding groove structure. The carton folding device solves the technical problem that a carton is compatible with different folding processes through one device.

Description

Technical Field

[0001] The utility model relates to the technical field of carton production, in particular to a carton folding device. Background Art

[0002] Carton folding equipment is a mechanical device used to fold cardboard to make cartons or other paper packaging products. This equipment is commonly used in the mass production of cartons and paper boxes to improve production efficiency and quality.

[0003] In order to improve production efficiency, existing carton folding equipment generally only quickly folds one side of the carton, and then uses another identical device to fold the other side of the carton. Although this increases production speed, it greatly increases the equipment cost of carton production.

[0004] The patent that has been made public is a Chinese utility model patent named "A Carton Folding Device" with the announcement number CN220031306U. The patent includes a base plate, a workbench is provided on the top of the base plate, a connecting rod is provided at the bottom of the workbench, the connecting rod is fixedly connected to the top of the base plate, a movable plate is provided at the bottom of the workbench, and two L-shaped blocks are fixedly connected to the top of the movable plate. The device moves downward through the two L-shaped blocks, so that the top inner wall of the L-shaped block contacts the carton, so that the carton is attached to the surface of the workbench to complete the positioning of the carton.

[0005] Although this device can improve the positioning effect of cartons and improve the production quality of cartons, it still cannot be compatible with different folding processes for different carton types and has certain limitations. Utility Model Content

[0006] The purpose of this application is to provide a carton folding device that solves the technical problem of making cartons compatible with different folding processes through one device.

[0007] In order to solve the above technical problems, the solution adopted by this application is as follows:

[0008] A carton folding device includes a conveyor belt, which is arranged on one side of a supporting platform. A folding groove structure is provided at the center of the top surface of the supporting platform. The folding groove structure is symmetrically provided with displacement drive devices along the conveying direction of the conveyor belt. The displacement drive device on one side of the folding groove structure is connected to a material receiving plate, and the displacement drive device on the other side of the folding groove structure is connected to a material pushing plate.

[0009] Preferably, the displacement directions of the receiving plate and the pushing plate are perpendicular to the conveying direction of the conveyor belt, and the bottom plate surfaces of the receiving plate and the pushing plate are in sliding contact with the top surface of the support platform.

[0010] Preferably, the hemming groove structure includes a hemming groove, a rectangular plate, an annular side plate, and an elastic component.

[0011] Preferably, the folding groove is a rectangular groove, a rectangular plate is provided in the center of the folding groove, an elastic component is connected between the rectangular plate and the bottom surface of the folding groove, an annular edge plate is provided on the outer edge of the rectangular plate, the elastic component is connected between the annular edge plate and the bottom surface of the folding groove, and the outer edge of the annular edge plate is in sliding contact with the inner groove surface of the folding groove.

[0012] Preferably, a folding device is provided directly above the folding groove structure, and the folding device includes a vertical driving member, a rectangular pressing block, and an annular edge pressing block.

[0013] Preferably, the annular edge pressing block is located at the outer edge of the rectangular pressing block, and the rectangular pressing block and the annular edge pressing block correspond to the positions of the rectangular plate and the annular side plate below, and the rectangular plate and the annular side plate are both connected to the vertical driving member.

[0014] Preferably, the top surface of the support platform is provided with a sink groove, which is located outside each groove surface of the folding groove. A folding device is provided in the sink groove, and the folding device includes a first cylinder and a folding plate. The first cylinder is fixed in the sink groove, and the push rod of the first cylinder is connected to one end surface of the folding plate. The other end surface of the folding plate faces the folding groove and is flush with the internal groove surface of the folding groove.

[0015] Preferably, the displacement drive device includes a motor, which is arranged on one side of the support plate. The drive shaft of the motor is connected to one end of the screw, the screw passes through the support plate and is rotatably arranged on the support plate. The thread on the screw is matched with a slider, and the sliding direction of the slider is perpendicular to the conveying direction of the conveyor belt.

[0016] Preferably, the folding groove structure further includes an annular plate, and the folding device further includes an annular pressing block.

[0017] Preferably, the annular plate is located between the rectangular plate and the annular side plate, and an elastic component is connected to the bottom surface of the annular plate and the folding groove.

[0018] Preferably, the annular pressing block is located between the rectangular pressing block and the annular edge pressing block, and the annular pressing block is connected to the vertical displacement member.

[0019] Preferably, the elastic component includes a spring member and a limiting column, and the spring member is sleeved on the limiting column.

[0020] Preferably, the bottom end of the spring member is connected to the bottom surface of the folding groove, and the top end of the spring member is connected to the upper and lower corresponding rectangular plates, annular plates and annular side plates respectively.

[0021] Preferably, the limiting posts are arranged on the bottom surface of the folding groove, and the heights of the limiting posts increase sequentially along the direction from the rectangular plate toward the outer side of the annular side plate.

[0022] Preferably, a displacement member is provided at the position where the receiving plate is connected to the displacement drive device. The displacement member is fixed on a slider in the displacement drive device. The displacement end of the displacement member is connected to the receiving plate, and the movement direction of the displacement end of the displacement member is vertical.

[0023] The technical solution of this application has at least the following advantages and beneficial effects:

[0024] In the utility model, by providing a folding groove structure with replaceable folding grooves of different sizes and shapes, and a folding device corresponding to the folding groove structure above and below, the functions of folding and packaging folding are compatible, the process steps in the carton production process are reduced, and the carton can complete two processes at the same time on the device, reducing equipment costs, saving the transit time of the carton, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the present utility model.

[0026] Figure 2 It is a schematic cross-sectional view of the displacement drive device in the utility model.

[0027] Figure 3 It is a schematic cross-sectional view of the folding device in the present invention.

[0028] Figure 4 This is a schematic cross-sectional view of the folding groove structure of the present invention.

[0029] Figure 5 It is a schematic diagram of the top structure of the utility model.

[0030] In the figure: 1- conveyor belt, 2- receiving plate, 3- displacement drive device, 301- support plate, 302- motor, 303- screw, 304- slider, 4- folding groove structure, 401- rectangular plate, 402- first spring, 403- first limiting column, 404- annular plate, 405- second spring, 406- second limiting column, 407- annular edge plate, 408- third spring, 409- third limiting column, 5- folding device, 501- first cylinder, 502- folding plate, 6- folding device, 601- first electric cylinder, 602- rectangular pressure block, 603- second electric cylinder, 604- annular pressure block, 605- third electric cylinder, 606- annular edge pressure block, 607- first slide bar, 608- second slide bar, 7- support platform, 8- push plate, 9- displacement member. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following figures. Therefore, once an item is defined in one figure, it does not require further definition or explanation in subsequent figures. Terms such as "center," "upper," "lower," "inner," and "outer" indicate positions or locations based on the positions or locations shown in the figures, or the positions or locations in which the product is typically placed when in use. These terms are used solely for ease of description and simplification of the present application. They do not indicate or imply that the device or component referred to must have a specific position, be constructed, or operate in a specific orientation, and are not to be construed as limiting the present application. It should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "mounted," and "connected" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct connections or indirect connections through an intermediary; or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this application in specific contexts.

[0033] Example

[0034] Please refer to Figure 1-Figure 5 The utility model provides a carton folding device, including a conveyor belt 1, a receiving plate 2, a displacement drive device 3, a folding groove structure 4, a folding device 5, a folding device 6, a supporting platform 7, a pushing plate 8, and a displacement member 9.

[0035] In the prior art, the folding and sealing of cartons and the packaging crimping are generally performed separately. In the production process of cartons, these two steps cannot be omitted, and two separate devices need to be configured to handle these two processes, and the compatibility of the devices is poor.

[0036] In this embodiment, the functions of folding and packaging folding are compatible by providing a folding groove structure 4 with replaceable folding grooves of different sizes and shapes, and a folding device 6 corresponding to the folding groove structure 4 above and below.

[0037] Furthermore, the conveyor belt 1 transports the unfolded carton to the working position, wherein the conveyor belt 1 is arranged on one side of the support platform 7, and a folding groove structure 4 is provided at the center of the top surface of the support platform 7.

[0038] The conveyor belt 1 surface of the conveyor belt 1 and the top surface of the support platform 7 are in the same plane.

[0039] The folding groove structure 4 is symmetrically provided with a displacement drive device 3 along the conveying direction of the conveyor belt 1. The displacement drive device 3 is distributed on both sides of the folding groove structure 4. The displacement drive device 3 on one side of the folding groove structure 4 is connected to the receiving plate 2, and the displacement drive device 3 on the other side of the folding groove structure 4 is connected to the pushing plate 8.

[0040] Among them, the displacement directions of the receiving plate 2 and the pushing plate 8 are perpendicular to the conveying direction of the conveyor belt 1, and are used to send or push the cartons on the conveyor belt 1 into or out of the folding groove structure 4 for folding and other processes; and the bottom plate surfaces of the receiving plate 2 and the pushing plate 8 are in sliding contact with the top surface of the support platform 7, which can drive the movement of thinner cartons.

[0041] Furthermore, the hemming groove structure 4 includes a hemming groove, a rectangular plate 401, an annular plate 404, an annular side plate 407, and an elastic component.

[0042] The folding groove is a rectangular groove, which is convenient for matching with the shape of the carton. A rectangular plate 401 is set in the center of the folding groove, and an elastic component is connected between the rectangular plate 401 and the bottom surface of the folding groove. An annular side plate 407 is set on the outer edge of the rectangular plate 401, and an elastic component is connected between the annular side plate 407 and the bottom surface of the folding groove. The annular plate 404 is located between the rectangular plate 401 and the annular side plate 407, and an elastic component is connected between the annular plate 404 and the bottom surface of the folding groove; wherein, the outer edge of the annular side plate 407 slides against the inner groove surface of the folding groove.

[0043] The elastic component allows each of the above-mentioned panels to be elastically displaced individually, and the rectangular panel 401, the annular panel 404 surrounding the periphery of the rectangular panel 401, and the annular side panel 407 surrounding the periphery of the annular panel 404 can form rectangular folding grooves of different sizes when displaced, thereby performing folding or indentation of different specifications of cartons.

[0044] Furthermore, a folding device 6 is provided directly above the folding groove structure 4 , and the folding device 6 includes a vertical driving member, a rectangular pressing block 602 , an annular pressing block 604 , and an annular edge pressing block 606 .

[0045] The annular edge pressure block 606 is located at the outer edge of the annular pressure block 604, the annular pressure block 604 is located between the rectangular pressure block 602 and the annular edge pressure block 606, the annular pressure block 604 is located at the outer edge of the rectangular pressure block 602, and the rectangular pressure block 602, the annular pressure block 604, and the annular edge pressure block 606 all correspond to the positions of the rectangular plate 401, the annular plate 404, and the annular side plate 407 below.

[0046] Each of the above-mentioned pressing blocks is individually fixedly connected to the driving end of a vertical driving member, which is fixed to the support seat on the top of the support platform 7 and maintains a certain height relative to the top surface of the support platform 7. When the vertical driving member drives the corresponding pressing block, it presses the unfolded carton into the folding groove structure 4 below. Depending on the different pressing blocks pressed in, the carton is folded into different shapes.

[0047] The vertical driving components are preferably the first electric cylinder 601 , the second electric cylinder 603 , and the third electric cylinder 605 .

[0048] The driving end of the first electric cylinder 601 is fixedly connected to the rectangular pressing block 602 , the driving end of the second electric cylinder 603 is fixedly connected to the annular pressing block 604 , and the driving end of the third electric cylinder 605 is fixedly connected to the annular edge pressing block 606 .

[0049] Preferably, when the rectangular pressing block 602 is pressed downward, the rectangular plate 401 moves downward accordingly, and the paper surface of the expanded carton that exceeds the range of the rectangular plate 401 is folded up and fits with the side of the rectangular pressing block 602 above. The remaining plates do not move, and are used to limit the rectangular shape of the carton, thereby realizing the crease processing of the packaging folding of the carton, which is convenient for subsequent carton packaging.

[0050] When the annular pressing block 604 is pressed downward, the rectangular plate 401 and the annular plate 404 move downward at the same time, and the paper surface of the expanded carton that exceeds the range of the rectangular plate 401 and the annular plate 404 is folded up and fits with the side of the annular pressing block 604 above. The annular side plate 407 does not move and is used to limit the rectangular shape of the carton, thereby realizing the crease processing of the packaging folding of the carton with a larger bottom surface, which is convenient for subsequent carton packaging.

[0051] When the annular edge pressing block 606 is pressed down, the rectangular plate 401, the annular plate 404, and the annular edge plate 407 move downward at the same time, and the paper surface of the unfolded carton that exceeds the entire folding groove range is folded up (the size of the outermost edge range of the annular edge plate 407 is consistent with the size of the groove surface range of the folding groove) and fits into the side of the annular edge pressing block 606 above.

[0052] Among them, the top surface of the supporting platform 7 is provided with a sink groove, which is located outside each groove surface of the folding groove. A folding device 5 is also provided in the sink groove. The folding device 5 includes a first cylinder 501 and a folding plate 502. The first cylinder 501 is fixed in the sink groove, and the push rod of the first cylinder 501 is fixedly connected to one end face of the folding plate 502. The other end face of the folding plate 502 faces the folding groove and is flush with the internal groove surface of the folding groove.

[0053] After the annular edge pressing block 606 is pressed down to a certain height, the paper surface of the carton will be flush with the bottom surface of the folding plate 502, and then it will no longer be pressed down. At this time, the folding device 5 works, and the folding plate 502 is pushed out through the first cylinder 501, pushing the bent part of the paper surface of the carton, and folding the paper surface folded by the folding groove onto the flat paper surface to achieve the folding of the carton.

[0054] In this embodiment, the displacement driving device 3 includes a support plate 301 , a motor 302 , a screw 303 , and a slider 304 .

[0055] Specifically, the motor 302 is fixedly set on one side of the support plate 301, the driving shaft of the motor 302 is fixedly connected to one end of the screw 303, the screw 303 passes through the support plate 301 and is rotatably set on the support plate 301, the support plate 301 is fixed on the support platform 7, and the thread on the screw 303 is matched with the slider 304, and the sliding direction of the slider 304 is perpendicular to the conveying direction of the conveyor belt 1.

[0056] The sliders 304 of the two displacement drive mechanisms 3 are connected to the pusher plate and the receiving plate 2, respectively, and drive their displacement. The receiving plate is initially positioned outside the conveyor belt, opposite the support platform. During receiving, the displacement drive mechanism operates, causing the receiving plate to move toward the support platform, pushing the carton onto it. Initially, the pusher plate is positioned on the support platform, away from the conveyor belt. During pushing, the displacement drive mechanism operates, causing the pusher plate to move toward the conveyor belt, pushing the carton onto it.

[0057] In this embodiment, a displacement member 9 is separately provided at the position where the receiving plate 2 is connected to the displacement driving device 3. The displacement member 9 is fixed on the slider 304 in the displacement driving device 3. The displacement end of the displacement member 9 is connected to the receiving plate 2, and the moving direction of the displacement end of the displacement member 9 is the vertical direction.

[0058] When the unfolded carton is pushed into the folding groove structure 4 by the receiving plate 2 to complete the folding and other processes, the carton will be pushed back onto the conveyor belt 1 by the pushing plate 8 and transported away by the conveyor belt 1. The receiving plate 2 crossing the conveyor belt 1 will block the transportation of the carton at this time. Therefore, the receiving plate 2 is driven upward by the displacement member 9, so that the folded carton can be transported away by the conveyor belt 1.

[0059] The displacement member 9 is preferably configured as a cylinder.

[0060] It is worth noting that in this embodiment, the device only folds and indents the carton, and the thickness of the carton does not change much after folding; and after the carton is indented, it will only be folded by the folding device 5. The carton will still return to the unfolded state when the push plate 8 is pushed out, and will be transported by the conveyor belt 1 to other workstations for folding the carton body.

[0061] In this embodiment, the elastic component includes a spring member and a limiting column, and the spring member is sleeved on the limiting column.

[0062] The spring member includes a first spring 402 , a second spring 405 , and a third spring 408 ; the limiting column includes a first limiting column 403 , a second limiting column 406 , and a third limiting column 409 .

[0063] Specifically, the bottom ends of the spring components are connected to the bottom surface of the folding groove, wherein the top end of the first spring 402 is fixedly connected to the rectangular plate 401, the top end of the second spring 405 is fixedly connected to the annular plate 404, and the top end of the third spring 408 is connected to the annular edge plate 407.

[0064] The bottom end of each limiting column is fixed to the bottom surface of the folding groove, and the top end of each limiting column does not contact each plate surface, and there is a certain distance between them.

[0065] The first limiting column 403 is located below the rectangular plate 401, the second limiting column 406 is located below the annular plate 404, and the third limiting column 409 is located below the annular side plate 407. The column heights of the first limiting column 403, the second limiting column 406, and the third limiting column 409 increase successively along the outer direction of the rectangular plate 401 toward the annular side plate 407.

[0066] When the pressing blocks in the folding device 6 are pressed down, they drive the pressing plates downward, and the spring members apply elastic potential energy to facilitate the subsequent resetting of the plates, while the limit columns of different heights limit the pressing depth of the pressing blocks, so that the bottom surface of the carton can be subjected to sufficient pressure during folding, thereby reinforcing the formation of creases (the elastic force applied by the spring members is not enough to apply sufficient pressure).

[0067] Thus far, various embodiments of the present invention have been described in detail. To avoid obscuring the concept of the present invention, some details known in the art have been omitted. Based on the above description, those skilled in the art will fully understand how to implement the technical solutions of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A carton folding device, comprising a conveyor belt (1), characterized in that: The conveyor belt (1) is arranged on one side of the support platform (7), a folding groove structure (4) is arranged at the center of the top surface of the support platform (7), and the folding groove structure (4) is symmetrically provided with a displacement driving device (3) along the conveying direction of the conveyor belt (1), the displacement driving device (3) on one side of the folding groove structure (4) is connected to a receiving plate (2), and the displacement driving device (3) on the other side of the folding groove structure (4) is connected to a pushing plate (8); The displacement directions of the receiving plate (2) and the pushing plate (8) are both perpendicular to the conveying direction of the conveyor belt (1), and the bottom surfaces of the receiving plate (2) and the pushing plate (8) are in sliding contact with the top surface of the supporting platform (7); The hemming groove structure (4) comprises a hemming groove, a rectangular plate (401), an annular side plate (407), and an elastic component; The hemming groove is a rectangular notch, a rectangular plate (401) is provided at the center of the hemming groove, an elastic component is connected between the rectangular plate (401) and the bottom surface of the hemming groove, an annular side plate (407) is provided on the outer edge of the rectangular plate (401), the elastic component is connected between the annular side plate (407) and the bottom surface of the hemming groove, and the outer edge of the annular side plate (407) is in sliding contact with the inner groove surface of the hemming groove; A folding device (6) is provided directly above the folding groove structure (4), and the folding device (6) comprises a vertical driving member, a rectangular pressing block (602), and an annular edge pressing block (606); The annular edge pressing block (606) is located at the outer edge of the rectangular pressing block (602). The rectangular pressing block (602) and the annular edge pressing block (606) correspond to the positions of the rectangular plate (401) and the annular edge plate (407) below. The rectangular plate (401) and the annular edge plate (407) are both connected to the vertical driving member. The top surface of the support platform (7) is provided with a sink groove, which is located outside each groove surface of the folding groove. A folding device (5) is provided in the sink groove, and the folding device (5) includes a first cylinder (501) and a folding plate (502). The first cylinder (501) is fixed in the sink groove, and a push rod of the first cylinder (501) is connected to one end surface of the folding plate (502). The other end surface of the folding plate (502) faces the folding groove and is flush with the inner groove surface of the folding groove.

2. A carton folding device according to claim 1, characterized in that: The displacement drive device (3) comprises a motor (302), the motor (302) being arranged on one side of the support plate (301), the drive shaft of the motor (302) being connected to one end of a screw rod (303), the screw rod (303) passing through the support plate (301) and being rotatably arranged on the support plate (301), the screw rod (303) being threadedly matched with a slider (304), and the sliding direction of the slider (304) being perpendicular to the conveying direction of the conveyor belt (1).

3. A carton folding device according to claim 1, characterized in that: The folding groove structure (4) further includes an annular plate (404), and the folding device (6) further includes an annular pressing block (604); The annular plate (404) is located between the rectangular plate (401) and the annular side plate (407), and an elastic component is connected between the annular plate (404) and the bottom surface of the hem groove; The annular pressing block (604) is located between the rectangular pressing block (602) and the annular edge pressing block (606), and the annular pressing block (604) is connected to the vertical displacement member (9).

4. A carton folding device according to claim 1, characterized in that: The elastic component includes a spring member and a limiting column, and the spring member is sleeved on the limiting column; The bottom end of the spring member is connected to the bottom surface of the folding groove, and the top end of the spring member is respectively connected to the upper and lower corresponding rectangular plates (401), annular plates (404) and annular side plates (407).

5. A carton folding device according to claim 4, characterized in that: The limiting posts are arranged on the bottom surface of the folding groove, and the height of the limiting posts increases sequentially along the rectangular plate (401) toward the outer side of the annular side plate (407).

6. A carton folding device according to claim 1, characterized in that: A displacement member (9) is provided at the position where the receiving plate (2) is connected to the displacement drive device (3); the displacement member (9) is fixed on a slider (304) in the displacement drive device (3); the displacement end of the displacement member (9) is connected to the receiving plate (2); and the displacement end of the displacement member (9) moves in a vertical direction.

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