Paper box folding device

By designing the carton folding device, using the cardboard feeding, pre-forming, transfer and forming mechanism, the problems of low folding efficiency and poor consistency of cartons in the prior art are solved, and automated folding is achieved, and efficiency and quality are improved.

CN222858876UActive Publication Date: 2025-05-13NINGBO HIGH-TECH ZONE HAIFU TECH CO LTD
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Patent Information

Application Number
CN202421532952.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-01
Publication Date
2025-05-13
Estimated Expiration
2034-07-01

AI Technical Summary

Technical Problem

In the prior art, the folding efficiency of the carton is low and the consistency of the folding box cannot be guaranteed, which affects the quality and production efficiency of the carton.

Method used

A carton folding device is designed, including a rack, a cardboard feeding mechanism, a cardboard pre-forming mechanism, a cardboard transfer mechanism and a carton forming mechanism. Through these mechanisms, the automatic folding of the cardboard is realized to ensure the consistency and quality of the folding box.

Benefits of technology

The automatic folding of cardboard is realized, the folding efficiency is improved, the consistency and quality of the folding box is ensured, and the time and effort of manual folding are reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a carton folding device, which relates to the technical field of carton folding devices and comprises a frame, a paperboard feeding mechanism, a paperboard pre-shaping mechanism, a paperboard transferring mechanism and a carton forming mechanism. A horizontal sliding platform is arranged on the rack; the paperboard feeding mechanism comprises a paperboard waiting assembly and a paperboard suction assembly. The paperboard waiting assembly is used for stacking a stack of paperboards for waiting; the paperboard sucking assembly is used for sucking and transferring a single paperboard from the paperboard waiting assembly; the paperboard pre-shaping mechanism comprises a plurality of pre-shaping limiting plates; the four supporting side plates of the paperboard are bent downwards under limiting of the preset limiting plates. The paperboard transfer mechanism is used for sucking and transferring the pre-shaped rectangular paperboard; the paper box forming mechanism is used for bending and forming paper boards. The box folding mechanism has the advantages that the rectangular paper box with the open top can be automatically folded, the folding efficiency is improved, and meanwhile the box folding consistency and the box folding quality can be guaranteed.
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Description

Technical Field

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

[0002] Existing paper boxes are often in the form of rectangular paper boxes with an open top. For such paper boxes, the existing method is to convey the paperboard in a flat and spread out form to the manual folding area, such as Figure 7 As shown, the cardboard 7 is flat, and the cardboard 7 includes a middle carton bottom plate 71 and supporting side plates 72 located around the carton bottom plate. Each supporting side plate 72 includes an inner bending support portion 721 and an outer bending shaping portion 722. A swing wing plate 73 is provided between two adjacent supporting side plates 72. A flatly spread cardboard 7 is manually taken off from the conveying mechanism, and then the flatly spread cardboard 7 is manually folded into a rectangular carton with an open top (shaped as shown in FIG. 1 ). Figure 8 and Fig. 9 As shown in the figure, manual box folding is time-consuming and laborious. Not only is the box folding efficiency low, but manual box folding cannot guarantee the consistency of the paper box after folding, which ultimately affects the overall paper box quality and paper box production efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the efficiency of manual box folding is low and the consistency of box folding cannot be guaranteed. In order to overcome the defects of the above-mentioned prior art, the utility model provides a method for realizing automatic box folding, ensuring the consistency and quality of box folding, thereby achieving the purpose of saving time and labor and improving box folding efficiency.

[0004] For the purpose of this utility model, the following technical solutions are adopted:

[0005] A carton folding device comprises a frame, a cardboard feeding mechanism, a cardboard pre-forming mechanism, a cardboard transfer mechanism and a carton forming mechanism; the frame is provided with a horizontal sliding platform which slides back and forth from the feeding side to the discharging side; the cardboard feeding mechanism comprises a cardboard waiting component and a cardboard suction component; the cardboard waiting component is arranged at the feeding end side of the frame, and the cardboard waiting component is used to stack a stack of cardboards for waiting; the cardboard suction component is arranged on the horizontal sliding platform, and the cardboard suction component is used to suck a single cardboard from the cardboard waiting component and transfer it to the cardboard pre-forming mechanism through the horizontal sliding platform; the cardboard pre-forming mechanism It includes a plurality of pre-forming limiting plates; the plurality of pre-forming limiting plates are arranged vertically above the cardboard suction component, and the plurality of pre-forming limiting plates are surrounded by a hollow rectangular shape; the four supporting side plates of the cardboard are bent downward under the limit of the pre-forming limiting plates, so that the originally flat cardboard is initially bent into a rectangular paper box; the cardboard transfer mechanism is located above the cardboard pre-forming mechanism, and the cardboard transfer mechanism is used to transfer the pre-formed rectangular cardboard to the paper box forming mechanism by suction; the paper box forming mechanism is located on the discharge end side of the frame; the paper box forming mechanism is used to bend the bending and shaping part on the outer side of each supporting side plate inward to form the paper box. The device replaces manual folding by using the cardboard feeding mechanism, the cardboard pre-forming mechanism, the cardboard transfer mechanism and the paper box forming mechanism to realize the automatic folding of the cardboard into a rectangular paper box, which saves time and labor, improves the folding efficiency and ensures the folding consistency and quality of the box.

[0006] Preferably, the cardboard waiting component includes a cardboard waiting support and a plurality of cardboard limiting vertical rods; the cardboard waiting support is arranged at the feeding end side of the frame; a vertically penetrating feeding through hole is arranged on the waiting top plate of the cardboard waiting support, the feeding through hole is the same shape as the cardboard, and the area of ​​the feeding through hole is smaller than the area of ​​the cardboard; a plurality of cardboard limiting vertical rods are respectively arranged on the waiting top plate of the cardboard waiting support, and a plurality of cardboard limiting vertical rods are circumferentially spaced along the edge of the feeding through hole, and all the cardboard limiting vertical rods are surrounded by a stacking space for stacking cardboard. By making the area of ​​the feeding through hole smaller than the area of ​​the cardboard, the cardboard can be supported on the waiting top plate when waiting, preventing the cardboard from falling directly from the feeding through hole, and the cardboard limiting vertical rod can better limit the cardboard, thereby ensuring that a stack of cardboards can be neatly stacked when placed in the stacking space.

[0007] Preferably, the cardboard material waiting component further comprises a cardboard stacking pressing plate; the cardboard stacking pressing plate is placed in the stacking space to press on the cardboard, and the area of ​​the cardboard stacking pressing plate is larger than the area of ​​the cardboard; a handle is also provided on the top surface of the cardboard stacking pressing plate. The cardboard stacking pressing plate can be used to press the stacked cardboards to achieve stable stacking, and the cardboard stacking pressing plate having an area larger than the area of ​​the cardboard can further ensure the flatness of the cardboard, thereby facilitating the cardboard suction component to perform suction transfer.

[0008] Preferably, the cardboard suction assembly includes a cardboard suction cylinder and a cardboard suction plate; the cardboard suction cylinder is vertically arranged on a horizontal sliding platform, the cardboard suction plate is fixedly connected to the telescopic rod at the top of the cardboard suction cylinder, and the cardboard suction plate is horizontally placed and located below the top plate of the cardboard waiting bracket; the cardboard suction plate is provided with a plurality of suction holes for adsorbing cardboard. The cardboard suction cylinder drives the cardboard suction plate upward, so that the cardboard suction plate enters the feed through hole and fits with the bottom cardboard, and is connected to the suction device through the suction hole for suction, so that the bottom cardboard is adsorbed and taken out from the feed through hole, achieving the effect of stable suction and separate transfer of feed.

[0009] Preferably, the cardboard pre-forming mechanism comprises a first gantry support, a second gantry support, two transfer limit vertical plates and four pre-forming limit plates, wherein the first gantry support and the second gantry support are respectively arranged on the frame and located on the left and right sides of the horizontal sliding platform; the columns of the first gantry support and the second gantry support are respectively provided with horizontally arranged limit clamping cylinders, and the front and rear driving parts of each limit clamping cylinder are connected with the pre-forming limit plates; the four pre-forming limit plates are symmetrically distributed, and a bending space for cardboard lifting and bending is surrounded by the four pre-forming limit plates; the two transfer limit vertical plates are respectively arranged on the first gantry support and the second gantry support in the front and rear directions, and the transfer limit vertical plates are located above the pre-forming limit plates; the cardboard transfer mechanism is limited between the two transfer limit vertical plates. Four pre-shaped limiting plates are used to enclose a bending space that matches the shape of the bottom plate of the paper box, so that when it is pushed up, the surrounding supporting side plates are blocked by the pre-shaped limiting plates and bend downward to achieve the effect of preliminary shaping. The transfer limiting vertical plate is used to better limit the cardboard transfer mechanism.

[0010] Preferably, at the bottom of each transfer limit vertical plate and located in the bending space, two spaced and L-shaped rocking wing guide convex plates are connected; the vertical plate of each rocking wing guide convex plate is aligned and connected with the bottom of the transfer limit vertical plate; the horizontal plate of the rocking wing guide convex plate is bent outward, and the bottom of the rocking wing guide convex plate extends to the bottom of the predetermined limit plate; at the bottom of each transfer limit vertical plate and located between the two rocking wing guide convex plates, a guide bending plate is arranged; the bending direction of the guide bending plate is the same as the bending direction of the horizontal plate of the rocking wing guide convex plate, and the bottom of the guide bending plate is located above the bottom of the rocking wing guide convex plate. Through the cooperation of the rocking wing guide convex plate and the guide bending plate, when the cardboard is lifted up, the four rocking wing plates can first touch the rocking wing guide convex plate, so that the four rocking wing plates are first folded into the supporting side plate, and then the supporting side plate is covered on the rocking wing plate through the guide bending plate, so that the rocking wing plate can be prevented from being exposed outside the supporting side plate during folding, thereby ensuring the accuracy of folding.

[0011] Preferably, the cardboard transfer mechanism comprises a cardboard transfer slide, a cardboard horizontal transfer cylinder, a cardboard lifting transfer cylinder, and at least one cardboard transfer carrier; both sides of the cardboard transfer slide are slidably connected to the top of the first gantry bracket and the second gantry bracket through cardboard transfer slide rails; the cardboard horizontal transfer cylinder is arranged on the cardboard transfer slide in the front-to-back direction, and the telescopic rod of the cardboard horizontal transfer cylinder is fixedly connected to the top of the first gantry bracket or the second gantry bracket through a transfer connecting block; the cardboard lifting transfer cylinder is vertically arranged on the cardboard transfer slide; the telescopic rod at the bottom of the cardboard lifting transfer cylinder is fixedly connected to the cardboard transfer carrier, the cardboard transfer carrier is slidably connected to the bottom of the cardboard transfer slide through a lifting guide rod, and the left and right sides of the cardboard transfer carrier are limited between the transfer limiting vertical plates, and a rectangular paper box limiting cavity with an upward opening is provided at the bottom of the cardboard transfer carrier; a plurality of transfer adsorption holes connected to the paper box limiting cavity are provided on the top inner wall of the cardboard transfer carrier. The cardboard transfer slide plate is driven by the cardboard horizontal transfer cylinder to achieve horizontal sliding, and the cardboard transfer carrier is driven by the cardboard lifting transfer cylinder to lift and move, thereby driving the cardboard transfer carrier to lift and move and horizontally position, thereby ensuring that the lifted cardboard is pushed into the carton limit cavity, which can prevent the cardboard from loosening during transportation, and the cardboard is adsorbed on the carton bottom plate through the transfer adsorption hole to ensure stability during the transfer process and prevent the cardboard from falling.

[0012] Preferably, the paper box forming mechanism includes a forming gantry bracket, a first forming component, a second forming component and a forming top block; the forming gantry bracket is arranged on the frame in the left-right direction, the first forming component and the second forming component are symmetrically arranged on the left and right sides of the forming gantry bracket of the frame, and the first forming component and the second forming component both include a forming horizontal moving cylinder, a forming horizontal push plate, a forming finger cylinder and an L-shaped forming pressure plate; the forming horizontal moving cylinder is horizontally arranged on the top of the forming gantry bracket; the forming horizontal push plate is connected to the telescopic rod of the forming horizontal moving cylinder, and the forming horizontal push plate is arranged horizontally , an L-shaped forming push plate is arranged on one side of the forming horizontal push plate close to the horizontal sliding platform, and the horizontal plate of the L-shaped forming push plate is fixedly connected to the forming horizontal push plate, and the vertical plate of the L-shaped forming push plate is bent upward; the forming finger cylinder is horizontally arranged on the forming horizontal push plate, and the upper finger rod of the forming finger cylinder is fixedly connected to the horizontal plate of the L-shaped forming pressure plate, and the vertical plate of the L-shaped forming pressure plate is bent upward; the L-shaped forming pressure plate is located on the outside of the L-shaped forming push plate; the forming top block is horizontally arranged on the forming gantry bracket through the forming top block bracket, and the forming top block is located between the first forming component and the second forming component. The carton forming mechanism is used to achieve precise shaping, and the cardboard is stably folded into a rectangular carton.

[0013] Preferably, the horizontal sliding platform comprises a horizontal sliding cylinder and a horizontal positioning slide plate; the horizontal sliding cylinder is arranged on the frame in the front-to-back direction, the horizontal positioning slide plate is connected to the frame in the front-to-back sliding manner through a horizontal positioning slide rail, and the bottom of the horizontal positioning slide plate is fixedly connected to the telescopic rod of the horizontal sliding cylinder. The horizontal sliding cylinder drives the horizontal positioning slide plate to realize horizontal movement and positioning.

[0014] As a preferred method, the paper box unloading mechanism is also included, and the paper box unloading mechanism includes an unloading lifting cylinder and an unloading clamping cylinder; the unloading lifting cylinder is vertically arranged on the discharge end side of the horizontal positioning slide; the unloading clamping cylinder is arranged on the telescopic rod at the top of the unloading lifting cylinder, and unloading support blocks are arranged on the driving parts on both sides of the unloading clamping cylinder. The unloading lifting cylinder drives the unloading clamping cylinder to rise, and the unloading support blocks on both sides are opened by the unloading clamping cylinder, so as to support the inner walls of the rectangular paper box on both sides, and then the rectangular paper box is taken off from the paperboard transfer mechanism.

[0015] To sum up, the advantage of the utility model is that the device replaces manual folding through the cardboard feeding mechanism, the cardboard pre-forming mechanism, the cardboard transfer mechanism and the carton forming mechanism, so as to realize automatic folding of the cardboard into a rectangular carton, thereby saving time and labor, improving the folding efficiency and ensuring the consistency and quality of the folding boxes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the paper box folding device of the utility model from a first viewing angle.

[0017] Figure 2 It is a structural schematic diagram of the paper box folding device of the utility model from a second viewing angle.

[0018] Figure 3 The utility model is a schematic structural diagram of a paperboard preforming mechanism and a paperboard transfer mechanism.

[0019] Figure 4 It is a structural schematic diagram of a paperboard transfer mechanism of the utility model.

[0020] Figure 5 It is a structural schematic diagram of a paper box folding device (without a paperboard feeding mechanism) of the utility model.

[0021] Figure 6 It is a structural schematic diagram of a paper box forming mechanism of the utility model.

[0022] Figure 7 It is a structural schematic diagram of existing paperboard.

[0023] Figure 8 It is a structural schematic diagram of the existing cardboard folding process.

[0024] Fig. 9 It is a structural schematic diagram of existing cardboard folding and forming.

[0025] Description of reference numerals:

[0026] 1. Cardboard feeding mechanism; 10. Stacking space; 11. Cardboard waiting bracket; 111. Waiting top plate; 112. Feeding hole; 12. Cardboard limiting vertical rod; 13. Cardboard stacking plate; 14. Handle; 15. Cardboard suction cylinder; 16. Cardboard suction plate; 161. Adsorption hole; 2. Cardboard pre-forming mechanism; 20. Pre-forming limiting plate; 200. Limit clamping cylinder; 201. Bending space; 21. First gantry bracket; 22. Second gantry bracket; 23. Transfer limiting vertical plate; 24. Rocking wing guide convex plate; 25. Guide bending plate; 3. Cardboard transfer mechanism; 31. Cardboard transfer slide; 311. Cardboard transfer slide rail; 32. Cardboard horizontal transfer cylinder; 321. Transfer connecting block; 33. Cardboard lifting transfer cylinder; 34. Cardboard Transfer carrier; 341, lifting guide rod; 342, transfer adsorption hole; 35, paper box limiting cavity; 4, paper box forming mechanism; 41, forming gantry bracket; 42, forming horizontal moving cylinder; 43, forming horizontal push plate; 431, L-shaped forming push plate; 44, forming finger cylinder; 441, upper finger rod; 45, L-shaped forming pressure plate; 46, forming top block; 461, forming gantry bracket; 5, horizontal sliding platform; 51, horizontal sliding cylinder; 52, horizontal positioning slide plate; 53, horizontal positioning slide rail; 6, paper box unloading mechanism; 61, unloading lifting cylinder; 62, unloading clamping cylinder; 63, unloading support block; 7, paperboard; 71, paper box bottom plate; 72, supporting side plate; 721, bending support part; 722, bending shaping part; 73, rocking wing plate. DETAILED DESCRIPTION

[0027] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0028] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0029] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 7 As shown in the figure, the existing cardboard 7 to be folded is flat, and the cardboard 7 includes a middle carton bottom plate 71 and supporting side plates 72 located around the carton bottom plate 71. The four supporting side plates 72 each include an inner bending support portion 721 and an outer bending shaping portion 722. A rocking wing plate 73 is arranged between two adjacent supporting side plates 72. Two rocking wing plates 73 are arranged on the front and rear sides of the left supporting side plate 72. The other two rocking wing plates 73 are arranged on the front and rear sides of the right supporting side plate 72, and the four rocking wing plates 73 are symmetrically distributed. Figure 8 and Fig. 9 As shown, the figure shows a structural diagram of a cardboard 7 folded into a rectangular paper box.

[0032] like Figures 1 to 6As shown, a carton folding device comprises a frame, a cardboard feeding mechanism 1, a cardboard pre-forming mechanism 2, a cardboard transfer mechanism 3 and a carton forming mechanism 4; a horizontal sliding platform 5 is provided on the frame, which slides back and forth along the feeding side to the discharging side (front and back direction); the cardboard feeding mechanism 1 comprises a cardboard waiting component and a cardboard suction component; the cardboard waiting component is arranged on the feeding end side (front side) of the frame, and the cardboard waiting component is used to stack a stack of cardboards 7 for waiting; the cardboard suction component is arranged on the horizontal sliding platform 5, and the cardboard suction component is used to suck a single cardboard 7 from the cardboard waiting component and transfer it to the cardboard pre-forming mechanism 2 through the horizontal sliding platform 5; the cardboard pre-forming mechanism 2 comprises four Pre-forming limiting plates 20; four pre-forming limiting plates 20 are arranged vertically above the cardboard suction component, and the four pre-forming limiting plates 20 are surrounded by a hollow rectangular shape; the four supporting side plates 72 of the cardboard 7 are bent downward under the limiting position of the pre-forming limiting plates 20, so that the originally flat cardboard 7 is initially bent into a rectangular paper box with an opening downward; the cardboard transfer mechanism 3 is located above the cardboard pre-forming mechanism 2, and the cardboard transfer mechanism 3 is used to transfer the pre-formed rectangular cardboard to the paper box forming mechanism 4; the paper box forming mechanism 4 is located on the discharge end side of the frame; the paper box forming mechanism 4 is used to bend the bending and shaping part 722 on the outside of each supporting side plate 72 inward and form the paper box. The device replaces manual folding by using the cardboard feeding mechanism 1, the cardboard pre-forming mechanism 2, the cardboard transfer mechanism 3 and the paper box forming mechanism 4 to realize the automatic folding of the cardboard 7 into a rectangular paper box, thereby saving time and labor, improving folding efficiency, and ensuring the consistency and quality of folding boxes.

[0033] like Figure 1 and Figure 2 As shown, the horizontal sliding platform 5 includes a horizontal sliding cylinder 51 and a horizontal positioning slide plate 52; the horizontal sliding cylinder 51 is arranged on the frame in the front-to-back direction, and the horizontal positioning slide plate 52 is connected to the frame in a front-to-back sliding manner through a horizontal positioning rail 53, and the bottom of the horizontal positioning slide plate 52 is fixedly connected to the telescopic rod of the horizontal sliding cylinder 51. The horizontal sliding cylinder 51 drives the horizontal positioning slide plate 52 to realize horizontal movement and positioning.

[0034] like Figure 1 and Figure 2As shown, the cardboard waiting assembly includes a cardboard waiting support 11 and a plurality of cardboard limiting vertical rods 12; the cardboard waiting support 11 is arranged on the feeding end side (front side) of the frame; a vertically penetrating feeding through hole 112 is arranged on the waiting top plate 111 of the cardboard waiting support 11, and the feeding through hole 112 has the same shape as the cardboard 7, and the area of ​​the feeding through hole 112 is smaller than the area of ​​the cardboard 7. Since the area of ​​the feeding through hole 112 is smaller than the area of ​​the cardboard 7, the cardboard 7 can be supported on the waiting top plate 111 during the waiting process, and the cardboard 7 is prevented from falling directly from the feeding through hole 112. A plurality of cardboard limiting vertical rods 12 are respectively arranged on the waiting top plate 111 of the cardboard waiting support 11, and the plurality of cardboard limiting vertical rods 12 are circumferentially spaced and distributed along the edge of the feeding through hole 112, and all the cardboard limiting vertical rods 12 surround a stacking space 10 for stacking cardboards. The cardboard 7 can be better limited by the cardboard limiting vertical rod 12, so as to ensure that a stack of cardboards 7 can be neatly stacked when placed in the stacking space 10.

[0035] like Figure 1 and Figure 2 As shown, the cardboard material waiting assembly also includes a cardboard stacking pressing plate 13; the cardboard stacking pressing plate 13 is placed in the stacking space 10 to press on the cardboard 7, and the area of ​​the cardboard stacking pressing plate 13 is larger than the area of ​​the cardboard 7. The cardboard stacking pressing plate 13 can be used to press the stacked cardboards 7 to achieve stable stacking. At the same time, the area of ​​the cardboard stacking pressing plate 13 is larger than the area of ​​the cardboard 7 to further ensure the flatness of the cardboard 7, thereby facilitating the cardboard suction assembly to suck and transfer. A handle 14 is also provided on the top surface of the cardboard stacking pressing plate 13, and the handle 14 is used to facilitate the cardboard stacking pressing plate 13 to be taken.

[0036] like Figure 1 and Figure 2 As shown, the cardboard suction assembly includes a cardboard suction cylinder 15 and a cardboard suction plate 16; the cardboard suction cylinder 15 is vertically arranged on the feeding end side (front side) of the horizontal sliding platform 5, and the cardboard suction plate 16 is fixedly connected to the telescopic rod at the top of the cardboard suction cylinder 15, and the cardboard suction plate 16 is horizontally placed and located below the top plate 111 of the cardboard waiting bracket 11, and when sucking, the cardboard suction plate 16 is aligned with the feeding through hole 112 up and down. A plurality of suction holes 161 are arranged on the cardboard suction plate 16, which are aligned left and right and arranged at intervals and are used to absorb the cardboard. The cardboard suction cylinder 15 drives the cardboard suction plate 16 to push up, so that the cardboard suction plate 16 enters the feeding through hole 112 and fits with the bottom cardboard 7, and is connected to the suction device through the suction hole 161 for suction, and then the bottom cardboard 7 is adsorbed and taken out from the feeding through hole 112, so as to achieve the effect of stable suction and separate transfer of feeding.

[0037] like Figures 1 to 3As shown, the cardboard pre-forming mechanism 2 includes a first gantry bracket 21, a second gantry bracket 22, two transfer limit vertical plates 23 and four pre-forming limit plates 20. The first gantry bracket 21 and the second gantry bracket 22 are respectively arranged on the frame and located on the left and right sides of the horizontal sliding platform 5, and the first gantry bracket 21 and the second gantry bracket 22 are arranged in the front-to-back direction; the feed end side columns of the first gantry bracket 21 and the second gantry bracket 22 are both provided with limit clamping cylinders 200 horizontally arranged in the front-to-back direction, and the clamping parts on the front and rear sides of each limit clamping cylinder 200 are connected There are pre-shaped limit plates 20; four pre-shaped limit plates 20 are symmetrically distributed, and a bending space 201 for lifting and bending the cardboard is formed between the four pre-shaped limit plates 20, and the two supporting side plates 72 in the front and rear directions are bent inwardly by the pre-shaped limit plates 20; the four pre-shaped limit plates 20 are symmetrically distributed, and a rectangular bending space 201 for lifting and bending the cardboard 7 is formed between the four pre-shaped limit plates 20, and the two supporting side plates 72 in the front and rear directions are bent inwardly by the pre-shaped limit plates 20; the bending space 201 matches the shape of the paper box bottom plate 71. Two transfer limit vertical plates 23 are respectively arranged on the top of the first gantry bracket 21 and the second gantry bracket 22 in the front and rear directions, and the two transfer limit vertical plates 23 are arranged vertically and located above the pre-shaped limit plates 20; the cardboard transfer mechanism 3 is limited between the two transfer limit vertical plates 23. The four pre-shaped limiting plates 20 enclose a bending space 201 that matches the shape of the paper box bottom plate 71, so that when it is lifted up, the surrounding supporting side plates 72 are blocked by the pre-shaped limiting plates 20 and bend downward to achieve the effect of preliminary shaping, and the front and rear vertical supporting side plates 72 are bent inward by the clamping cylinder 200 to ensure that the front and rear supporting side plates 72 are located inside the left and right supporting side plates 72. The transfer limiting vertical plate 23 is used to better limit the cardboard transfer mechanism 3, ensuring that the transfer limiting vertical plate 23 will not have position deviation when moving, thereby improving the accuracy of movement.

[0038] like Figure 3 and Figure 4As shown, two spaced-apart and L-shaped rocking wing guide convex plates 24 are connected at the bottom of each transfer limiting vertical plate 23 and located in the bending space 201; the vertical plate of each rocking wing guide convex plate 24 is aligned and connected with the bottom of the transfer limiting vertical plate 23; the horizontal plate of the rocking wing guide convex plate 24 is bent outward, and the bottom of the rocking wing guide convex plate 24 extends to the bottom of the predetermined limiting plate 20; a guide bending plate 25 is provided at the bottom of each transfer limiting vertical plate 23 and located between the two rocking wing guide convex plates 24; the bending direction of the guide bending plate 25 is the same as the bending direction of the horizontal plate of the rocking wing guide convex plate 24, and the bottom of the guide bending plate 25 is located above the bottom of the rocking wing guide convex plate 24. By cooperating with the rocking wing guide convex plate 24 and the guide bending plate 25, when the paperboard 7 is lifted up, the four rocking wing plates 73 can first hit the rocking wing guide convex plate 24, so that the four rocking wing plates 73 are first retracted into the supporting side plates 72, and then the supporting side plates 72 are covered on the rocking wing plates 73 through the guide bending plate 25, so as to prevent the rocking wing plates 73 from being exposed outside the supporting side plates 72 during folding, thereby ensuring the accuracy of folding.

[0039] like Figure 3 and Figure 4As shown, the cardboard transfer mechanism 3 includes a cardboard transfer slide 31, a cardboard horizontal transfer cylinder 32, a cardboard lifting transfer cylinder 33, and two cardboard transfer carriers 34 arranged in parallel and at intervals; both sides of the cardboard transfer slide 31 are slidably connected to the top of the first gantry bracket 21 and the second gantry bracket 22 through cardboard transfer slide rails 311; the cardboard horizontal transfer cylinder 32 is arranged on the cardboard transfer slide 31 in the front-to-back direction, and the telescopic rod of the cardboard horizontal transfer cylinder 32 is fixedly connected to the top of the first gantry bracket 21 or the second gantry bracket 22 through a transfer connection block 321; the cardboard lifting transfer cylinder 33 is vertically connected to the top of the first gantry bracket 21 or the second gantry bracket 22. The cardboard transfer slide 31 is arranged on the cardboard transfer slide 31; the telescopic rod at the bottom of the cardboard lifting transfer cylinder 33 is fixedly connected to the cardboard transfer carrier 34, the cardboard transfer carrier 34 is slidably connected to the bottom of the cardboard transfer slide 31 through the lifting guide rod 341, and the left and right sides of the cardboard transfer carrier 34 are limited between the transfer limit vertical plates 23, and the bottom of the cardboard transfer carrier 34 is provided with a paper box limit cavity 35 with an upward opening and a rectangular shape, and the vertical depth of the paper box limit cavity 35 matches the vertical length of the bending support part 721 on the rectangular paper box, so that after the rectangular paper box is placed, the paper box limit cavity 35 bends and shapes the bending and shaping part 722. The top inner wall of the cardboard transfer carrier 34 is provided with a plurality of transfer adsorption holes 342 connected to the paper box limit cavity 35. The cardboard transfer slide plate 31 is driven by the cardboard horizontal transfer cylinder 32 to achieve horizontal sliding, and the cardboard transfer carrier 34 is driven by the cardboard lifting transfer cylinder 33 to lift and move, thereby driving the cardboard transfer carrier 34 to lift and move and horizontally position, thereby ensuring that the lifted cardboard 7 is pushed into the paper box limiting cavity 35, which can prevent the cardboard 7 from loosening during transportation, and the paper box bottom plate 71 of the cardboard 7 is adsorbed by the transfer adsorption hole 342, thereby ensuring stability during the transfer process and preventing the cardboard 7 from falling.

[0040] like Figure 5 and Figure 6As shown, the paper box forming mechanism 4 includes a forming gantry bracket 41, a first forming component, a second forming component and a forming top block 46; the forming gantry bracket 41 is arranged on the frame in the left-right direction, the first forming component and the second forming component are symmetrically arranged on the left and right sides of the forming gantry bracket 41 of the frame, and the first forming component and the second forming component both include a forming horizontal moving cylinder 42, a forming horizontal push plate 43, a forming finger cylinder 44 and an L-shaped forming pressure plate 45; the forming horizontal moving cylinder 42 is horizontally arranged on the top of the forming gantry bracket 41; the forming horizontal push plate 43 is connected to the telescopic rod of the forming horizontal moving cylinder 42, and the forming horizontal push plate 43 is arranged in the horizontal direction, and the forming horizontal push plate 43 is driven by the forming horizontal moving cylinder 42 to move horizontally and position. An L-shaped formed push plate 431 is provided on one side of the formed horizontal push plate 43 close to the horizontal sliding platform 5, and the horizontal plate of the L-shaped formed push plate 431 is fixedly connected to the formed horizontal push plate 43, and the vertical plate of the L-shaped formed push plate 431 is bent upward, and the L-shaped formed push plate 431 is first used to bend the bending and shaping portions 722 of the supporting side plates 72 on the left and right sides inward. The forming finger cylinder 44 is horizontally arranged on the forming horizontal push plate 43, and the upper finger rod 441 of the forming finger cylinder 44 is fixedly connected to the horizontal plate of the L-shaped forming pressure plate 45, and the vertical plate of the L-shaped forming pressure plate 45 is bent upward; the L-shaped forming pressure plate 45 is located on the outer side of the L-shaped forming push plate 431, and the upper finger rod 441 is driven by the forming finger cylinder 44 to open upward, so that the L-shaped forming pressure plate 45 is bent upward so that the bending and shaping part 722 is against the bending support part 721, so that the supporting side plate 72 is vertically shaped, and the L-shaped forming pressure plate 45 can further ensure the stable bending of the bending and shaping part 722 and shape the entire rectangular paper box, thereby improving the stability and accuracy of the shaping of the rectangular paper box and preventing the supporting side plate 72 from loosening. The forming top block 46 is horizontally arranged on the forming gantry bracket 41 through the forming top block bracket 461, and the forming top block 46 is located between the first forming assembly and the second forming assembly. The paper box is pressed down onto the forming top block 46, and the bending shaping parts 722 on the front and rear sides are bent inward under the action of the forming top block 46. The paper box forming mechanism 4 realizes precise shaping, and the paperboard 7 is stably folded into a rectangular paper box.

[0041] like Figure 6As shown, the paper box unloading mechanism 6 is also included, and the paper box unloading mechanism 6 includes an unloading lifting cylinder 61 and an unloading clamping cylinder 62; the unloading lifting cylinder 61 is vertically arranged on the discharge end side of the horizontal positioning slide 52; the unloading clamping cylinder 62 is arranged on the telescopic rod at the top of the unloading lifting cylinder 61, and unloading support blocks 63 are arranged on the driving parts on both sides of the unloading clamping cylinder 62. The unloading lifting cylinder 61 drives the unloading clamping cylinder 62 to rise, and the unloading support blocks 63 on both sides are opened by the unloading clamping cylinder 62, so as to support the inner walls of the two sides of the rectangular paper box, and then the rectangular paper box is taken off from the paperboard transfer mechanism 3.

[0042] When the device is working, a stack of cardboards 7 is first stacked and placed in the stacking space 10, and the cardboard stacking pressing plate 13 is pressed on the top of the stack of cardboards 7, so that the bottom cardboard 7 is against the top of the feeding hole 112 of the waiting top plate 111; the cardboard suction plate 16 on the horizontal positioning slide plate 52 is driven by the horizontal sliding cylinder 51 on the horizontal sliding platform 5 to move and position below the feeding hole 112, and the cardboard suction cylinder 15 lifts the cardboard suction plate 16 to the bottom surface of the carton bottom plate 71 of the bottom cardboard 7, and pulls it downward from the feeding hole 112 after adsorbing it.

[0043] The horizontal sliding platform 5 is then transferred to the bottom of the cardboard pre-forming mechanism 2, and the cardboard transfer carrier 34 is moved to the top of the rectangular paper box by the cardboard horizontal transfer cylinder 32 on the cardboard transfer mechanism 3, and the cardboard transfer carrier 34 is driven to move down to the top of the bending space 201 by the cardboard lifting transfer cylinder 33; the cardboard 7 is lifted up by the cardboard suction cylinder 15 to pass through the bending space 201 surrounded by the four pre-forming limit plates 20, and the rectangular paper box enters the paper box limit cavity 35, and the rocking wing is first touched during the lifting process. The guide convex plate 24 retracts the four rocking wing plates 73 inwardly, and in the process of lifting upwardly, the four predetermined limiting plates 20 and the guide bending plates 25 are pressed against the surrounding supporting side plates 72, and the supporting side plates 72 are bent downward, so that a flat paperboard 7 is initially bent into a rectangular paper box with an opening downward (the supporting side plates 72 are in a vertical state); then, the limiting clamping cylinders 200 on the front and rear sides clamp and press the bending and shaping parts 722 on the front and rear sides, so that the bending and shaping parts 722 on the front and rear sides have a tendency to bend inwards. By adsorbing the rectangular paper box in the paper box limiting cavity 35, the paperboard suction cylinder 15 drives the paperboard suction plate 16 to move down and out of the rectangular paper box, and then the limiting clamping cylinders 200 on the front and rear sides clamp and press the bending and shaping parts 722 on the front and rear sides again, so that the bending and shaping parts 722 on the front and rear sides are pre-folded inward, and the bending and shaping parts 722 on the front and rear sides are located inside the bending and shaping parts 722 on the left and right sides.

[0044] After the pre-folding is completed, the rectangular paper box is transferred to the paper box forming mechanism 4, and the rectangular paper box is pressed down so that the inward pre-folded bending shaping portion 722 is pressed against the horizontally arranged forming top block 46. As the rectangular paper box gradually descends, the bending shaping portion 722 gradually presses against the bending support portion 721, and finally the forming top block 46 enters the rectangular paper box, so that the bending shaping portion 722 presses against the bending support portion 721, and the forming horizontal moving cylinder 42 on the first forming component and the second forming component drives the L-shaped forming push plate 431 to push the bending shaping portion 722 on the left and right sides, and makes the bending shaping portion 722 on the left and right sides bend inward. When the L-shaped forming pressing plate 4 moves to the side wall of the rectangular paper box, the forming finger cylinder 4 The L-shaped forming pressing plate 45 is driven to open upward, so that the bending forming parts 722 on the left and right sides are pressed against the bending supporting parts 721 on the left and right sides, and the bending forming parts 722 are closely attached to the bending supporting parts 721, so that the rectangular paper box is formed. After forming, the forming horizontal moving cylinder 42 and the forming finger cylinder 44 are reset, and finally, the rectangular paper box is transported to the top of the paper box unloading mechanism 6, and the unloading lifting cylinder 61 is raised to make the unloading support block 63 enter the rectangular paper box, and the unloading support blocks 63 on both sides are opened outward by the unloading clamping cylinder 62 to tighten the rectangular paper box, which can also further ensure that the bending forming parts 722 are formed. After tightening, the rectangular paper box is taken out from the paperboard transfer carrier 34 to complete the unloading.

[0045] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0046] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0047] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A carton folding device, characterized in that: The invention comprises a frame, a cardboard feeding mechanism (1), a cardboard pre-forming mechanism (2), a cardboard transfer mechanism (3) and a paper box forming mechanism (4); the frame is provided with a horizontal sliding platform (5) which slides back and forth from the feeding side to the discharging side; the cardboard feeding mechanism (1) comprises a cardboard waiting component and a cardboard suction component; the cardboard waiting component is arranged at the feeding end side of the frame, and is used to stack a stack of cardboards for waiting; the cardboard suction component is arranged on the horizontal sliding platform (5), and is used to suck a single cardboard from the cardboard waiting component and transfer it to the cardboard pre-forming mechanism (2) through the horizontal sliding platform (5); the cardboard pre-forming mechanism (2) comprises a plurality of Pre-forming limiting plates (20); a plurality of the pre-forming limiting plates (20) are arranged above the paperboard suction component, and the plurality of the pre-forming limiting plates (20) form a hollow rectangular shape; the four supporting side plates of the paperboard are bent downward under the limiting position of the pre-forming limiting plates (20), so that the originally flat paperboard is initially bent into a rectangular paper box; the paperboard transfer mechanism (3) is located above the paperboard pre-forming mechanism (2), and the paperboard transfer mechanism (3) is used to suck and transfer the pre-formed rectangular paperboard to the paper box forming mechanism (4); the paper box forming mechanism (4) is located at the discharge end side of the frame; the paper box forming mechanism (4) is used to bend the bending and shaping portion on the outer side of each supporting side plate inward to form the paper box.

2. The carton folding device according to claim 1, characterized in that: The cardboard waiting component comprises a cardboard waiting support (11) and a plurality of cardboard limiting vertical rods (12); the cardboard waiting support (11) is arranged on the feeding end side of a frame; a vertically penetrating feeding through hole (112) is arranged on the waiting top plate (111) of the cardboard waiting support (11); the feeding through hole (112) is the same shape as the cardboard, and the area of ​​the feeding through hole (112) is smaller than the area of ​​the cardboard; the plurality of cardboard limiting vertical rods (12) are respectively arranged on the waiting top plate (111) of the cardboard waiting support (11), and the plurality of cardboard limiting vertical rods (12) are circumferentially spaced and distributed along the edge of the feeding through hole (112), and all the cardboard limiting vertical rods (12) surround a stacking space (10) for stacking cardboards.

3. The carton folding device according to claim 2, characterized in that: The cardboard material waiting assembly also includes a cardboard stacking pressing plate (13); the cardboard stacking pressing plate (13) is placed in the stacking space (10) to press on top of the cardboard, and the area of ​​the cardboard stacking pressing plate (13) is larger than the area of ​​the cardboard; and a handle (14) is also provided on the top surface of the cardboard stacking pressing plate (13).

4. The carton folding device according to claim 2, characterized in that: The cardboard suction component comprises a cardboard suction cylinder (15) and a cardboard suction plate (16); the cardboard suction cylinder (15) is vertically arranged on a horizontal sliding platform (5); the cardboard suction plate (16) is fixedly connected to a telescopic rod at the top of the cardboard suction cylinder (15); the cardboard suction plate (16) is horizontally placed and located below a cardboard waiting top plate (111) of a cardboard waiting bracket (11); and a plurality of suction holes (161) for sucking cardboard are arranged on the cardboard suction plate (16).

5. The carton folding device according to claim 1, characterized in that: The cardboard pre-forming mechanism (2) comprises a first gantry support (21), a second gantry support (22), two transfer limit vertical plates (23) and four pre-forming limit plates (20); the first gantry support (21) and the second gantry support (22) are respectively arranged on a frame and located on the left and right sides of a horizontal sliding platform (5); the columns of the first gantry support (21) and the second gantry support (22) are both provided with horizontally arranged limit clamping cylinders (200); the clamping parts on the front and rear sides of each limit clamping cylinder (200) are connected with the pre-forming limit clamping cylinders (200); The invention relates to a limiting plate (20); four predetermined limiting plates (20) are symmetrically distributed, and a bending space (201) for lifting and bending the paperboard is formed between the four predetermined limiting plates (20), and the supporting side plates in the front and rear directions are bent inwardly through the predetermined limiting plates (20); two transfer limiting vertical plates (23) are respectively arranged on the first gantry support (21) and the second gantry support (22) in the front and rear directions, and the transfer limiting vertical plates (23) are located above the predetermined limiting plates (20); and the paperboard transfer mechanism (3) is limited between the two transfer limiting vertical plates (23).

6. The carton folding device according to claim 5, characterized in that: Two spaced L-shaped rocking wing guide convex plates (24) are connected to the bottom of each transfer limiting vertical plate (23) and are located in the bending space (201); the vertical plate of each rocking wing guide convex plate (24) is aligned and connected to the bottom of the transfer limiting vertical plate (23); the horizontal plate of the rocking wing guide convex plate (24) is bent outward, and the bottom of the rocking wing guide convex plate (24) extends to the bottom of the predetermined limiting plate (20); a guide bending plate (25) is provided at the bottom of each transfer limiting vertical plate (23) and is located between the two rocking wing guide convex plates (24); the bending direction of the guide bending plate (25) is the same as the bending direction of the horizontal plate of the rocking wing guide convex plate (24), and the bottom of the guide bending plate (25) is located above the bottom of the rocking wing guide convex plate (24).

7. The carton folding device according to claim 5, characterized in that: The cardboard transfer mechanism (3) comprises a cardboard transfer slide (31), a cardboard horizontal transfer cylinder (32), a cardboard lifting transfer cylinder (33), and at least one cardboard transfer carrier (34); both sides of the cardboard transfer slide (31) are slidably connected to the top of the first gantry bracket (21) and the second gantry bracket (22) through cardboard transfer slide rails (311); the cardboard horizontal transfer cylinder (32) is arranged on the cardboard transfer slide (31) in the front-to-back direction, and the telescopic rod of the cardboard horizontal transfer cylinder (32) is fixedly connected to the top of the first gantry bracket (21) or the second gantry bracket (22) through a transfer connection block (321); the cardboard lifting transfer cylinder (33) is connected to the top of the first gantry bracket (21) or the second gantry bracket (22) through a transfer connection block (321); The transfer cylinder (33) is vertically arranged on the cardboard transfer slide (31); the telescopic rod at the bottom of the cardboard transfer cylinder (33) is fixedly connected to the cardboard transfer carrier (34); the cardboard transfer carrier (34) is slidably connected to the bottom of the cardboard transfer slide (31) through the lifting guide rod (341), and the left and right sides of the cardboard transfer carrier (34) are limited between the transfer limiting vertical plates (23); the bottom of the cardboard transfer carrier (34) is provided with a rectangular paper box limiting cavity (35) with an opening facing upward; the top inner wall of the cardboard transfer carrier (34) is provided with a plurality of transfer adsorption holes (342) connected to the paper box limiting cavity (35).

8. The carton folding device according to claim 1, characterized in that: The paper box forming mechanism (4) comprises a forming gantry support (41), a first forming component, a second forming component and a forming top block (46); the forming gantry support (41) is arranged on the frame in the left-right direction, the first forming component and the second forming component are symmetrically arranged on the left and right sides of the forming gantry support (41) of the frame, and the first forming component and the second forming component both comprise a forming horizontal movable cylinder (42), a forming horizontal push plate (43), a forming finger cylinder (44) and an L-shaped forming pressing plate (45); the forming horizontal movable cylinder (42) is horizontally arranged on the top of the forming gantry support (41); the forming horizontal push plate (43) is connected to the telescopic rod of the forming horizontal movable cylinder (42), and the forming horizontal push plate (43) is arranged in the horizontal direction, and the forming horizontal push plate (43) is close to the forming horizontal movable cylinder (42). An L-shaped forming push plate (431) is provided on one side of the nearly horizontal sliding platform (5), and the horizontal plate of the L-shaped forming push plate (431) is fixedly connected to the forming horizontal push plate (43), and the vertical plate of the L-shaped forming push plate (431) is bent upward; the forming finger cylinder (44) is horizontally arranged on the forming horizontal push plate (43), and the upper finger rod (441) of the forming finger cylinder (44) is fixedly connected to the horizontal plate of the L-shaped forming pressure plate (45), and the vertical plate of the L-shaped forming pressure plate (45) is bent upward; the L-shaped forming pressure plate (45) is located on the outer side of the L-shaped forming push plate (431); the forming top block (46) is horizontally arranged on the forming gantry bracket (41) through the forming top block bracket (461), and the forming top block (46) is located between the first forming component and the second forming component.

9. The carton folding device according to claim 1, characterized in that: The horizontal sliding platform (5) comprises a horizontal sliding cylinder (51) and a horizontal positioning slide plate (52); the horizontal sliding cylinder (51) is arranged on a frame in a front-to-back direction, the horizontal positioning slide plate (52) is connected to the frame in a front-to-back sliding manner via a horizontal positioning slide rail (53), and the bottom of the horizontal positioning slide plate (52) is fixedly connected to the telescopic rod of the horizontal sliding cylinder (51).

10. The carton folding device according to claim 9, characterized in that: The invention also comprises a carton unloading mechanism (6), wherein the carton unloading mechanism (6) comprises a unloading lifting cylinder (61) and a unloading clamping cylinder (62); the unloading lifting cylinder (61) is vertically arranged on the discharge end side of the horizontal positioning slide plate (52); the unloading clamping cylinder (62) is arranged on a telescopic rod at the top of the unloading lifting cylinder (61), and unloading support blocks (63) are arranged on the driving parts on both sides of the unloading clamping cylinder (62).