Carton folding and pressing tool

Abstract

The utility model relates to a carton folding and pressing tool which comprises a workbench supported in a suspended mode through a lifting support, a limiting and adsorbing assembly and a supporting frame are arranged on the workbench, the limiting and adsorbing assembly can conduct edge adjustable limiting and bottom surface adsorbing and positioning on carton boards, and the supporting frame enables a folding assembly to be installed above the workbench in a suspended mode. The edge folding assembly is connected with the supporting frame through a lifting adjusting unit capable of changing the working height of the edge folding assembly. Elastic pressing assemblies capable of pressing folded edges of the carton are further arranged on the edge of the table top of the workbench in the circumferential direction at intervals, and a dispensing assembly capable of conducting gluing treatment on the folded edge area is further arranged on the side, close to the elastic pressing assemblies, of the edge folding assembly. According to the carton folding and gluing device, the folding indentation forming width can be adaptively adjusted to adapt to cartons of different sizes, meanwhile, folding processing and gluing processing can be synchronously completed, and the processing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of cardboard box folding processing equipment, and in particular to a cardboard box folding and pressing tool. Background Technology

[0002] Cardboard boxes are currently the most widely used packaging products on the market and an indispensable part of modern logistics, playing a vital role in the manufacturing industry. During the cardboard box processing, to meet different needs, the edges of the cardboard boxes are folded, and the folded edges are also glued and pressed together, thereby giving the edges of the cardboard sheets that make up the box better sealing performance and aesthetics.

[0003] Existing cardboard folding equipment requires creating creases at specific locations on the cardboard during the folding process to facilitate folding and pressing. However, existing equipment typically cannot adjust the size of the folding mechanism according to the actual dimensions of the cardboard, and cannot create creases on the cardboard surface with a length equal to the width. This easily leads to folding position misalignment, hindering subsequent folding and pressing operations and reducing processing yield. Furthermore, existing equipment performs gluing simultaneously with crease creation, requiring crease creation and gluing at different stations or in different work cycles. This prolongs the folding cycle, reduces processing efficiency, limits the overall processing speed of folding and pressing, and restricts cardboard production output. Utility Model Content

[0004] The purpose of this invention is to provide a carton folding and pressing fixture that can adaptably adjust the folding and creasing forming width to fit different sizes of cartons while simultaneously completing folding and gluing processes, thereby improving processing efficiency. This solves the problems of existing carton folding equipment's folding and creasing processing structure being unable to adaptably adjust the creasing length, unable to match different sizes of carton boards, resulting in folding position deviations that affect folding accuracy and quality, and existing processing equipment requiring folding, gluing, and pressing operations in stages, which reduces overall processing speed and restricts output.

[0005] The technical solution adopted by this utility model is as follows: a carton folding and pressing fixture, including a worktable suspended by a liftable bracket, a limiting and adsorption component capable of adjustable edge positioning and bottom adsorption positioning of the carton board, and a support frame suspending the folding component above the worktable, wherein the folding component is connected to the support frame through a lifting adjustment unit capable of changing its working height; elastic pressing components capable of pressing the folded edges of the carton are also circumferentially spaced along the edge of the worktable, and a dispensing component capable of applying glue to the folded area is also provided on the side of the folding component near the elastic pressing component.

[0006] According to a preferred embodiment, the folding assembly includes a mounting plate, a first extension connecting mechanism, and an extendable folding strip, wherein the mounting plate is mounted on the lower axial end of the lifting adjustment unit, and a plurality of the first extension connecting mechanisms are circumferentially spaced on the mounting plate; the extendable folding strip, capable of simultaneously folding the four edges of the carton board, is connected to the translational end of the first extension connecting mechanism.

[0007] According to a preferred embodiment, the strip-shaped extension seat of the first extended connection mechanism is embedded in the mounting plate, and the lower surface of the strip-shaped extension seat is provided with at least two parallel first translation guides, and the moving ends of multiple first translation guides are all connected to the same mounting strip; the extendable folded edge strip parallel to its axis is installed on the bottom surface of the mounting strip.

[0008] According to a preferred embodiment, the chamfered sleeve of the extendable folding strip is mounted on the bottom surface of the mounting strip, and a chamfered insert rod capable of extending the length of the strip is inserted into the open cavity of the chamfered sleeve; a locking screw capable of defining the relative position between the chamfered sleeve and the chamfered insert rod is also inserted into the surface of the chamfered sleeve.

[0009] According to a preferred embodiment, the dispensing assembly includes a glue storage tank, a pressurized pump, a glue supply main pipe, a diversion delivery hose, and glue discharge heads. The glue storage tank is mounted on the support frame, and the glue supply main pipe is inserted into the glue discharge port at the bottom of the glue storage tank. A pressurized pump for pressurizing and outputting glue is also provided on the glue supply main pipe. The output end of the glue supply main pipe is also connected to a plurality of glue discharge heads spaced apart on an extendable folding strip through the diversion delivery hose.

[0010] According to a preferred embodiment, the through-body of the dispensing head is connected to the output end of the diversion conveying hose, and a frustum plug capable of sealing its dispensing port is provided in the through-body; the frustum plug is connected to a limiting plate installed in a limiting shell via a connecting vertical rod, and a return spring limiting the initial working position of the limiting plate is also provided in the limiting shell, and the limiting shell is installed in the inner cavity of the through-body via a positioning crossbar.

[0011] According to a preferred embodiment, the bottom surface of the frustum plug is further provided with an adjustment protrusion that extends through the glue discharge port.

[0012] According to a preferred embodiment, the elastic pressing assembly includes a hydraulic telescopic rod horizontally placed on the top surface of the workbench, a connecting seat disposed at the moving end of the hydraulic telescopic rod, and a trapezoidal pressing head connected to the connecting seat by a limiting spring.

[0013] According to a preferred embodiment, the limiting adsorption assembly includes an adsorption positioning module and an edge limiting module, wherein the adsorption positioning module is embedded in the mounting groove of the worktable, and the adjustment guide rail of the edge limiting module is arranged circumferentially at intervals around the mounting groove, and a limiting side post is also supported on the slider of the adjustment guide rail.

[0014] According to a preferred embodiment, the vacuum generating unit of the adsorption positioning module is installed on the bottom surface of the worktable, and the vacuum generating unit is connected to the suction cup disposed in the mounting groove through a gas guide support pipe.

[0015] The beneficial effects of this utility model are:

[0016] The limiting and adsorption component provided in this application can adaptably achieve the limiting placement and centering of various sizes of cardboard sheets, ensuring the positional accuracy and stability of the cardboard sheets during folding and pressing, thereby improving processing quality and stability. The folding component provided in this application can adjust the station and length of the creasing forming structure according to the size of the cardboard sheets to be processed, ensuring that creasing lines of equal length to the width of the cardboard are formed on cardboard sheets of different sizes, guaranteeing the quality and accuracy of the folding process. The dispensing component provided in this application can perform multi-point dispensing work simultaneously with the folding component, thereby shortening the processing cycle and improving processing efficiency by allowing folding and dispensing operations to be performed concurrently. The elastic pressing component provided in this application can adaptively complete the pressing process of cardboard sheets of different thicknesses at the same station, expanding the applicability of the equipment. Through the cooperation of the folding component, elastic pressing component, and dispensing component, this application enables the cardboard sheet to complete the folding and pressing process at a single station within a short cycle, improving the overall processing speed and production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a preferred carton folding and pressing tool proposed in this utility model;

[0018] Figure 2 This is a plan view of a preferred carton folding and pressing fixture workbench proposed in this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the extendable folding strip of a preferred carton folding and pressing fixture proposed in this utility model;

[0020] Figure 4 This is a partial structural schematic diagram of the elastic pressing component of a preferred carton folding and pressing tool proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the glue dispensing head of a preferred carton folding and pressing fixture proposed in this utility model.

[0022] List of reference numerals

[0023] 1: Liftable support frame; 2: Worktable; 3: Limiting adsorption assembly; 4: Support frame; 5: Folding edge assembly; 6: Lifting adjustment unit; 7: Elastic pressing assembly; 8: Dispensing assembly; 21: Embedding groove; 31: Adsorption positioning module; 32: Edge limiting module; 311: Vacuum generating unit; 312: Air guide support tube; 313: Suction cup; 321: Adjustment guide rail; 322: Limiting side post; 51: Mounting plate; 52: First extension connection mechanism; 53: Extendable folding edge strip; 521: Strip-shaped extension seat; 522: First translation guide rail; 52 3: Installation strip; 531: Chamfered sleeve strip; 532: Chamfered insert rod strip; 533: Locking screw; 71: Hydraulic telescopic rod; 72: Connecting seat; 73: Limiting spring; 74: Trapezoidal pressing head; 81: Glue storage tank; 82: Pressurized drive pump; 83: Glue supply main pipe; 84: Diverting conveying hose; 85: Glue discharge head; 851: Through seat body; 852: Frustum plug body; 853: Connecting vertical rod; 854: Limiting shell; 855: Limiting plate; 856: Return spring; 857: Positioning crossbar; 8521: Adjusting protrusion; 8541: Sealing ring. Detailed Implementation

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] The technical solutions provided by this utility model will be described in detail below with reference to the accompanying drawings and through embodiments. It should be noted that the descriptions of these embodiments are intended to aid in understanding this utility model, but do not constitute a limitation thereof. In some examples, because some implementation methods belong to existing or conventional technology, they are not described or are not described in detail.

[0026] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, under reasonable circumstances (without self-contradiction), include both direct and indirect connections (linkages).

[0027] The following is a detailed explanation with reference to the accompanying drawings.

[0028] Example 1

[0029] This application provides a carton folding and pressing fixture, which includes a liftable support 1, a worktable 2, a limiting adsorption component 3, a support frame 4, a folding component 5, a lifting adjustment unit 6, an elastic pressing component 7, and an adhesive dispensing component 8.

[0030] according to Figure 1-5In one specific embodiment, a liftable support 1 is installed at the bottom of the workbench 2 to suspend it in mid-air. The liftable support 1 consists of a connecting frame and hydraulic rods located at the four corners of the connecting frame, allowing adjustment of the workbench 2's working height. The workbench 2 is equipped with a limiting and adsorption assembly 3 for adjustable edge positioning and bottom adsorption of cardboard sheets, and a support frame 4 that suspends the folding assembly 5 above the workbench 2. The folding assembly 5 is connected to the support frame 4 via a lifting adjustment unit 6 that can change its working height. Elastic pressing assemblies 7 are also circumferentially spaced along the edge of the workbench 2 to press the folded edges of the cardboard. A dispensing assembly 8 for applying adhesive to the folded area is also provided on the side of the folding assembly 5 near the elastic pressing assembly 7. The limiting and adsorption assembly 3 provided in this application can adaptably achieve limiting placement and centering of cardboard sheets of various sizes, ensuring positional accuracy and stability during folding and pressing of the cardboard sheets, thereby improving processing quality and stability. The folding assembly 5 provided in this application can adjust the station and length of the creasing forming structure according to the size of the cardboard to be processed, so as to ensure that creasing is formed on cardboard of different sizes, meeting the position requirements and with a length equal to the width of the cardboard, thus ensuring the quality and accuracy of the folding process. The dispensing assembly 8 provided in this application can perform multi-point dispensing work simultaneously with the folding assembly 5, thereby enabling the folding and dispensing operations to be performed at the same time, effectively shortening the processing cycle and improving processing efficiency. The elastic pressing assembly 7 provided in this application can adaptively complete the pressing process of cardboard of different thicknesses at the same station, expanding the applicability of the equipment. Through the cooperation of the folding assembly 5, the elastic pressing assembly 7, and the dispensing assembly 8, this application enables the cardboard to complete the folding and pressing process at a single station in a shorter cycle, improving the overall processing speed and production efficiency.

[0031] Preferably, the limiting adsorption component 3 includes an adsorption positioning module 31 and an edge limiting module 32. Preferably, the adsorption positioning module 31 is embedded in the mounting groove 21 of the worktable 2. Preferably, the vacuum generating unit 311 of the adsorption positioning module 31 is mounted on the bottom surface of the worktable 2. Preferably, the vacuum generating unit 311 is connected to the suction cup 313 disposed in the mounting groove 21 through the air guide support pipe 312, so that the suction cup 313 can be positioned on the worktable 2 for edge pressing by adsorbing onto the bottom surface of the cardboard, avoiding the cardboard from shifting and affecting the edge pressing accuracy. Specifically, when the cardboard covers the suction cup 313, the vacuum generating unit 311 starts to work, causing the suction cup 313 to adsorb onto the bottom surface of the cardboard, thereby positioning the cardboard on the worktable 2 and preventing the cardboard from shifting. After the folding and pressing work is completed, adjust the three-way valve on the air guide support pipe 312 to disconnect the vacuum generating unit 311 from the suction cup 313, allowing the inner cavity of the suction cup 313 to connect with the outside and release the negative pressure state, thus facilitating the removal of the cardboard. Preferably, the vacuum generating unit 311 can be an industrial miniature vacuum generator of model DPX698C. More preferably, the adjusting guide rail 321 of the edge limiting module 32 is arranged circumferentially around the embedded groove 21. Preferably, the slider of the adjusting guide rail 321 is also supported by a limiting side post 322 that can limit the placement position of the cardboard board on the worktable 2. Preferably, the adjusting guide rail 321 can be a DP150 series square guide rail. The adsorption positioning module 31 provided in this application can generate periodic negative pressure adsorption force according to needs, thereby adsorbing and positioning the cardboard sheets placed on the workbench 2, preventing the cardboard sheets from moving during the folding and pressing process, ensuring the stability of the workstation during folding and pressing, and improving the quality and accuracy of the cardboard sheet folding and pressing process. The edge limiting module 32 provided in this application can adjust the alignment interval width to ensure that cardboard sheets of different sizes can be accurately centered on the workbench 2, ensuring the accuracy and consistency of the creasing position during folding processing, and ensuring the processing accuracy and stability during batch processing.

[0032] Preferably, the folding assembly 5 includes a mounting plate 51, a first extension connecting mechanism 52, and an extendable folding strip 53. Preferably, the mounting plate 51 is mounted on the lower axial end of the lifting adjustment unit 6. Specifically, four lifting rods forming the lifting adjustment unit 6 are respectively connected to the four corners of the mounting plate 51, thereby synchronously changing the working height of the mounting plate 51. Preferably, four sets of first extension connecting mechanisms 52 are circumferentially spaced on the mounting plate 51. Preferably, an extendable folding strip 53, capable of simultaneously folding the four edges of the carton board, is connected to the translational end of the first extension connecting mechanism 52. The first extended connection structure 52 provided in this application can drive the two extendable folding strips 53 arranged in alignment to move towards or away from each other, so as to adaptably perform folding processing on carton boards of different sizes. The extendable folding strips 53 provided in this application can also adjust their length synchronously so that they can adaptably form creases on the carton board with a length that matches the width of the cardboard. This ensures that the cardboard can be flipped along the crease when it is folded later, avoiding the problem of the folding position shifting when the crease does not penetrate the cardboard and there is no crease. This effectively improves the accuracy and quality of the folding processing.

[0033] Preferably, both the first extended connecting mechanism 52 and the extendable folding strip 53 are adjusted in position and length by the operator before the folding operation to accommodate the size of the batch of cardboard sheets to be processed, ensuring effective adaptation to that size. When changing to a different size batch of cardboard sheets, the workstation is adjusted again to ensure the applicability of the folding assembly 5, thereby improving its applicability and folding quality.

[0034] Preferably, the strip-shaped extension seat 521 of the first extended connecting mechanism 52 is embedded in the mounting plate 51. Preferably, at least two parallel first translation guide rails 522 are provided on the lower surface of the strip-shaped extension seat 521. Specifically, the moving ends of multiple first translation guide rails 522 are all connected to the same mounting strip 523, so that the first translation guide rails 522 can drive the same mounting strip 523 to move stably in a direction perpendicular to its axis by synchronously reciprocating translation. Preferably, an extendable folded edge strip 53 parallel to its axis is installed on the bottom surface of the mounting strip 523. Preferably, the first translation guide rails 522 can also be DP150 series square guide rails. This application ensures the stability of the lateral movement and working position of the mounting strip 523 by setting multiple parallel first translation guide rails 522, thereby providing stable connection support for the extendable folded edge strip 53. This application arranges four sets of first extended connecting mechanisms 52 in four directions, so that the corresponding four extendable folding strips 53 can simultaneously fold the four edges of the carton board, thereby improving processing efficiency.

[0035] Preferably, the chamfered sleeve 531 of the extendable folding strip 53 is mounted on the bottom surface of the mounting strip 523. More preferably, a chamfered insert 532 capable of extending the strip length is inserted into the open cavity of the chamfered sleeve 531. More preferably, a locking screw 533 capable of defining the relative position between the chamfered sleeve 531 and the chamfered insert 532 is also inserted into the surface of the chamfered sleeve 531, thereby controllably defining folding strips of different lengths. Preferably, both the chamfered sleeve 531 and the chamfered insert 532 have acute-angled pressing edges, thereby effectively forming straight indentations on the cardboard during their descent, ensuring convenience and stability during subsequent folding.

[0036] Preferably, the lifting adjustment unit 6 is a hydraulic lifting rod capable of accurately positioning the working height of the folding assembly 5. Specifically, the lifting adjustment unit 6 can be a high-precision hydraulic column of model QKY257-69S. Specifically, the lifting adjustment unit 6 can drive the extendable folding strip 53 of the folding assembly 5 to press against the position on the cardboard where an indentation needs to be processed. At this time, the glue dispensing head 85 simultaneously abuts against the surface of the cardboard and opens its glue delivery channel, so that the glue is pressurized and output to form a glue dispensing area. In the above state, the edge of the cardboard warps due to the continuous pressure of the extendable folding strip 53, so that the elastic pressing assembly 7 approaches the board and limits the warped state of the board edge. Then, the lifting adjustment unit 6 retracts and resets, so that the extendable folding strip 53 and the glue dispensing head 85 move upward and away from the board. At this time, the elastic pressing assembly 7 moves further, so that the edge of the board is pushed to fold further, so that the edge of the board flips and presses against the inner board, thereby completing the pressing work of the board. Finally, the elastic pressing assembly 7 returns to its original position. After the above process is completed, the operator or robot replaces the cardboard on the workbench 2, and then the processing mechanism repeats the above work to continuously perform batch folding and pressing processing.

[0037] Preferably, the elastic pressing assembly 7 includes a hydraulic telescopic rod 71 horizontally placed on the top surface of the worktable 2, a connecting seat 72 disposed at the moving end of the hydraulic telescopic rod 71, and a trapezoidal pressing head 74 connected to the connecting seat 72 by a limiting spring 73, so that the trapezoidal pressing head 74 can elastically rise and fall under the push of the hydraulic telescopic rod 71 to press the folded edge onto the plate. Preferably, the top of the trapezoidal pressing head 74 is provided with a sleeve groove fitted onto the connecting seat 72. Preferably, the hydraulic telescopic rod 71 can be a miniature hydraulic push rod of model AST-85SF. The hydraulic telescopic rod 71 provided in this application can reciprocate to push the trapezoidal pressing head 74 to move laterally, so that the trapezoidal pressing head 74 can push the raised edge of the plate to fold further and press together, thereby efficiently and simultaneously completing the pressing process of the four plate edges, improving processing efficiency.

[0038] Preferably, the dispensing assembly 8 includes a glue storage tank 81, a pressurized drive pump 82, a glue supply main pipe 83, a diversion delivery hose 84, and a glue discharge head 85. Preferably, the glue storage tank 81 is mounted on the support frame 4. Preferably, the glue supply main pipe 83 is inserted into the glue discharge port at the bottom of the glue storage tank 81. More preferably, the glue supply main pipe 83 is also provided with a pressurized drive pump 82 for pressurizing and outputting the glue liquid. Preferably, the output end of the glue supply main pipe 83 is also connected to multiple glue discharge heads 85 spaced apart on the extendable folded edge strip 53 via the diversion delivery hose 84. Preferably, the pressurized drive pump 82 can be a 1SP series hydraulic pump. The glue discharge head 85 provided in this application can simultaneously supply glue to multiple points, thereby achieving the stability of the press-fit connection through multi-point bonding.

[0039] Preferably, at least three dispensing heads 85 are installed on the surface of the chamfered sleeve strip 531 and the surface of the chamfered insert strip 532 extending from the chamfered sleeve strip 531, respectively, in an equally spaced manner. Preferably, the through seat 851 of the dispensing head 85 is connected to the output end of the diversion conveying hose 84. Preferably, a frustum plug 852 capable of sealing its through dispensing port is provided inside the through seat 851. Preferably, the frustum plug 852 is connected to the limiting plate 855 installed in the limiting shell 854 via a connecting vertical rod 853. More preferably, a return spring 856 limiting the initial working position of the limiting plate 855 is also provided in the limiting shell 854, and the limiting shell 854 is installed in the inner cavity of the through seat 851 via a positioning crossbar 857. Preferably, the bottom surface of the frustum plug 852 is also provided with an adjusting protrusion 8521 extending out of the through dispensing port. Preferably, a sealing ring 8541 is embedded in the through-hole of the vertical rod 853 inserted into the limiting shell 854 to fill the gap between the two. In use, when the through seat 851 abuts against the surface of the cardboard, the adjusting protrusion 8521 retracts into the through glue outlet, thereby causing the frustum plug 852 to move upward and release the blockage of the through glue outlet, allowing the glue to be effectively discharged to form a dispensing area.

[0040] Preferably, the electrical components such as the adsorption positioning module 31, the adjustment guide rail 321, the first translation guide rail 522, the lifting adjustment unit 6, the hydraulic telescopic rod 71, and the pressurization drive pump 82 are all electrically connected to the controller and the power supply. The control method of this application is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is only used to protect the mechanical device and its mechanical structural features. Therefore, this utility model will not explain the control method and circuit connection in detail.

[0041] This utility model is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this utility model. However, regardless of any changes in shape or structure, any technical solution falling within the scope of the claims of this utility model is within the protection scope of this utility model. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. Throughout the text, features introduced by "preferred" are merely optional and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A cardboard box folding and pressing fixture, comprising a worktable (2) suspended by a liftable bracket (1), characterized in that, The workbench (2) is provided with a limiting adsorption component (3) that can perform edge adjustable limiting and bottom adsorption positioning of the carton board and a support frame (4) that suspends the folding component (5) above the workbench (2). The folding component (5) is connected to the support frame (4) through a lifting adjustment unit (6) that can change its working height. Elastic pressing components (7) capable of pressing the folded edges of the carton are also arranged circumferentially at the edge of the workbench (2), and a dispensing component (8) capable of applying glue to the folded area is also provided on the side of the folding component (5) near the elastic pressing component (7).

2. The carton folding and pressing fixture as described in claim 1, characterized in that, The folding assembly (5) includes a mounting plate (51), a first extension connection mechanism (52), and a stretchable folding strip (53), wherein, The mounting plate (51) is installed on the lower axial end of the lifting adjustment unit (6), and a plurality of the first extended connection mechanisms (52) are circumferentially spaced on the mounting plate (51). An extendable folding strip (53) capable of simultaneously folding the four edges of the carton board is connected to the translation end of the first extended connecting mechanism (52).

3. The cardboard box folding and pressing fixture as described in claim 2, characterized in that, The strip-shaped extension seat (521) of the first extended connection mechanism (52) is embedded in the mounting plate (51), and the lower surface of the strip-shaped extension seat (521) is provided with at least two parallel first translation guide rails (522), and the moving ends of multiple first translation guide rails (522) are all connected to the same mounting strip (523). The extendable folded edge strip (53) parallel to its axis is installed on the bottom surface of the mounting strip (523).

4. The carton folding and pressing fixture as described in claim 3, characterized in that, The chamfered sleeve strip (531) of the extendable folded edge strip (53) is installed on the bottom surface of the mounting strip (523), and a chamfered insert strip (532) capable of extending the length of the strip is inserted into the open cavity of the chamfered sleeve strip (531). A locking screw (533) is also inserted into the surface of the chamfered sleeve strip (531) to define its relative position with the chamfered insert strip (532).

5. The carton folding and pressing fixture as described in claim 4, characterized in that, The dispensing assembly (8) includes a glue storage tank (81), a pressure-driven pump (82), a glue supply main pipe (83), a diversion delivery hose (84), and a glue discharge head (85), wherein, The glue storage tank (81) is installed on the support frame (4), and the glue supply pipe (83) is inserted into the glue discharge port at the bottom of the glue storage tank (81). A pressure drive pump (82) for driving the glue liquid to be pressurized and output is also provided on the glue supply pipe (83). The output end of the glue supply main pipe (83) is also connected to a plurality of glue discharge heads (85) spaced apart on the extendable folded edge strip (53) via the diversion delivery hose (84).

6. The carton folding and pressing fixture as described in claim 5, characterized in that, The through seat (851) of the discharge head (85) is connected to the output end of the diversion conveying hose (84), and a frustum plug (852) capable of sealing its through discharge port is provided in the through seat (851). The frustum plug (852) is connected to the limiting plate (855) installed in the limiting shell (854) via a connecting vertical rod (853), and a return spring (856) is also provided in the limiting shell (854) to limit the initial working position of the limiting plate (855). The limiting shell (854) is installed in the inner cavity of the through seat (851) via a positioning crossbar (857).

7. The carton folding and pressing fixture as described in claim 6, characterized in that, The bottom surface of the frustum plug (852) is also provided with an adjustment protrusion (8521) that extends through the glue discharge port.

8. The carton folding and pressing fixture as described in claim 7, characterized in that, The elastic pressing assembly (7) includes a hydraulic telescopic rod (71) horizontally placed on the top surface of the workbench (2), a connecting seat (72) provided at the moving end of the hydraulic telescopic rod (71), and a trapezoidal pressing head (74) connected to the connecting seat (72) by a limiting spring (73).

9. The carton folding and pressing fixture as described in claim 8, characterized in that, The limiting adsorption component (3) includes an adsorption positioning module (31) and an edge limiting module (32), wherein, The adsorption positioning module (31) is embedded in the mounting groove (21) of the worktable (2), and the adjustment guide rail (321) of the edge limiting module (32) is arranged circumferentially around the mounting groove (21). The slider of the adjustment guide rail (321) is also supported by a limiting side post (322).

10. The carton folding and pressing fixture as described in claim 9, characterized in that, The vacuum generating unit (311) of the adsorption positioning module (31) is installed on the bottom surface of the workbench (2), and the vacuum generating unit (311) is connected to the suction cup (313) set in the mounting groove (21) through the air guide support pipe (312).

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