Material jacking middle sealing device of paper pile packaging equipment

Abstract

The utility model discloses a material jacking and middle sealing device of paper pile packaging equipment, which comprises a rack, a forming cavity is arranged on the rack, an outer packaging paper feeding unit is arranged above the forming cavity and is arranged on two sides, an edge folding unit is further arranged above the outer packaging paper feeding unit, and a material jacking unit is arranged below the forming cavity; the outer packaging paper feeding unit comprises an air suction conveying belt, and the lower surface of the air suction conveying belt is a conveying working face. The jacking unit comprises a large jacking plate and a small jacking plate, a containing cavity for containing the small jacking plate is formed in the large jacking plate, the large jacking plate is connected with the first lifting driving unit, the small jacking plate is connected with the second lifting driving unit, and when the jacking unit is in a working state, the large jacking plate and the small jacking plate ascend together, and when the jacking unit is in an avoiding state, the large jacking plate descends before the small jacking plate; the edge folding unit comprises translation inserting plates, the translation inserting plates are arranged on the two sides of the forming cavity, and the translation inserting plates on the two sides can move relatively. The air suction conveying belt adsorbs outer packaging paper to enable the outer packaging paper to be conveyed in a suspended mode, abrasion to the outer surface of the outer packaging paper is avoided, and the conveying speed is high.

Description

Technical Field

[0001] This utility model relates to the field of paper stacking and packaging, and in particular to a material lifting and sealing device for paper stacking and packaging equipment. Background Technology

[0002] The paper stacking and packaging equipment packages stacked individual sheets of paper with outer packaging paper. The packaging process involves placing the paper stack flat on the inside of the unfolded outer packaging paper (with the printed side on the outside). Then, the right side of the outer packaging paper is folded towards the center to cover the stack of copy paper. Similarly, the left side with the adhesive strip is folded inward to overlap with the right edge; this process is called center sealing. After center sealing, the bottom edge of the outer packaging paper is folded diagonally upward to both sides to form two symmetrical triangles. The triangles are then pressed inward to flatten them, and the top of the outer packaging paper is folded downward to cover the copy paper, and the triangular folding is repeated.

[0003] The inner surface of the outer packaging paper and the paper stack are directly affected by the feeding speed of the outer packaging paper, which directly impacts the production efficiency of the sealing device. Currently, the most common method for feeding outer packaging paper in the market relies on servo robotic arms. These arms grip the edges of the paper and transfer it to the next station along a preset path. However, servo robotic arms have limited speed and high costs, so small and medium-sized enterprises typically use manual packaging, which results in high labor costs and low production efficiency. Summary of the Invention

[0004] This utility model addresses the shortcomings of existing technologies by providing a material lifting and sealing device for paper stacking and packaging equipment that improves efficiency by increasing the conveying speed of the outer packaging paper.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a material lifting and sealing device for a paper stacking and packaging equipment, comprising a frame, a forming cavity on the frame, an outer packaging paper feeding unit disposed above the forming cavity and disposed on both sides, a folding unit disposed above the outer packaging paper feeding unit, and a material lifting unit disposed below the forming cavity; the outer packaging paper feeding unit includes a suction conveyor belt, the lower surface of which is a conveying working surface; the material lifting unit includes a large top plate and a small top plate, the large top plate having a receiving cavity for accommodating the small top plate, the large top plate being connected to a first lifting drive unit, and the small top plate being connected to a second lifting drive unit; in the working state of the material lifting unit, the large top plate and the small top plate rise together, and in the avoidance state of the material lifting unit, the large top plate descends before the small top plate; the folding unit includes a translating insert plate disposed on both sides of the forming cavity, and the translating insert plates on both sides are movable relative to each other.

[0006] The air suction conveyor belt of the utility model adsorbs the outer packaging paper and conveys it in suspension, avoiding abrasion on the outer surface of the outer packaging paper, and having a fast conveying speed. The outer packaging paper is positioned above the forming cavity by the air suction conveyor belt. The large top plate and the small top plate of the blanking unit rise to the forming cavity together, making the paper stack contact the inner surface of the outer packaging paper. At the same time, the paper stack and the outer packaging paper are lifted together. The translation plates move relatively left and right, causing the left and right sides of the outer packaging paper to flip towards the middle respectively. When the translation plates are working, the large top plate first moves downwards to avoid, and the small top plate continues to hold the middle part of the paper stack to prevent the middle part of the paper stack from sagging downwards until the translation plates on both sides continue to move towards the middle, and then the small top plate moves downwards to avoid, ensuring the product quality.

[0007] Preferably, the air suction conveyor belt includes a feeding section and a discharging section. A material bearing platform for placing materials is provided below the feeding section of the air suction conveyor belt. There is a negative pressure conveying channel between the feeding section of the air suction conveyor belt and the material bearing platform. The discharging section of the air suction conveyor belt is located above the forming cavity.

[0008] Preferably, the first lifting drive unit includes a first link group and a first lifting drive cam. The first link group is arranged between the large top plate and the first lifting drive cam. The second lifting drive unit includes a second link group and a second lifting drive cam. The second link group is arranged between the small top plate and the second lifting drive cam. The first lifting drive cam and the second lifting drive cam are arranged on the driving rotating shaft. The first lifting drive cam and the second lifting cam share a power source, reducing costs, and the cam drive has a higher service life and an action process.

[0009] Preferably, a paper pressing head is arranged in the upper part of the forming cavity. The paper pressing head is arranged above the folding unit. The paper pressing head is in transmission connection with a paper pressing drive unit that drives it to move up and down. The paper pressing drive unit drives the paper pressing head to cooperate with the blanking unit to clamp and transfer materials. When the paper stack contacts the outer packaging paper, the paper pressing head cooperates with the blanking unit to clamp the materials, avoiding relative displacement between the outer packaging paper and the paper stack during the upward movement of the materials and affecting the packaging quality.

[0010] Preferably, a positioning frame is arranged at the feeding place of the blanking and packaging mechanism. The positioning frame has a material transfer channel for the blanking unit to pass through up and down. The positioning frame makes the initial positions of the paper stacks on the blanking unit consistent, ensuring the finished product rate.

[0011] Furthermore, a paper stack inlet is arranged on one side of the positioning frame. The positioning frame is in a "C" shape. The positioning frame has an opening, which is convenient for feeding materials.

[0012] Preferably, a glue spraying component is arranged on the rack. The material transfer path of the suction conveyor belt passes above the glue spraying component, and the glue spraying component sprays glue vertically upward in the direction perpendicular to the material transfer path. The glue spraying component sprays glue on the outer wrapping paper. In addition, during the glue spraying process, the outer wrapping paper blocks between the suction conveyor belt and the glue spraying component, preventing the suction conveyor belt from being contaminated.

[0013] Preferably, a discharging mechanism is arranged on one side of the forming cavity. The discharging mechanism includes a push plate that can move left and right. There is a discharging channel above the translation plug board on the opposite side of the discharging mechanism, and the push plate is connected between the forming cavity and the discharging channel. The push plate can cooperate with the left translation plug board to complete the middle sealing, reducing the stroke of the left translation plug board. In addition, the push plate can push the material to the next process.

[0014] Preferably, the hemming unit further includes a suction cross beam. The suction cross beam is arranged below the translation plug board. The suction cross beam is used to adsorb the left and right sides of the outer wrapping paper, making the outer wrapping paper in the shape of "冂". The suction cross beam adsorbs the left and right sides of the outer wrapping paper to make it taut. The overall outer wrapping paper is in the shape of "冂", ensuring that the outer wrapping paper is closely fitted with the paper stack and guaranteeing the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the present invention.

[0016] Figure 2 is a schematic structural view of the outer wrapping paper feeding unit of the present invention.

[0017] Figure 3 is a schematic view of the outer wrapping paper feeding unit and the top feeding packaging mechanism of the present invention.

[0018] Figure 4 is a side view of the present invention.

[0019] Figure 5 is the present invention Figure 4 of the A-A cross-sectional view.

[0020] Figure 6 is a schematic structural view of the top feeding unit of the present invention.

[0021] The names of the parts referred to by each numerical label in the above drawings are as follows:

[0022] The components include: 1. Forming cavity; 2. Outer packaging paper feeding unit; 21. Suction conveyor belt; 22. Material receiving platform; 3. Top material unit; 31. Large top plate; 32. Small top plate; 4. Folding unit; 41. Suction beam; 42. Translation insert plate; 5. Push plate; 61. First linkage group; 62. First lifting drive cam; 63. Second linkage group; 64. Second lifting drive cam; 7. Active rotating shaft; 8. Paper pressing head; 81. Paper pressing drive unit; 9. Moving seat; 10. Positioning frame; 11. Glue spraying component. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0024] A material lifting and sealing device for a paper stacking and packaging equipment includes a frame with a forming cavity 1. An outer packaging paper feeding unit 2 is provided above the forming cavity 1 and on both sides. A folding unit 4 is also provided above the outer packaging paper feeding unit 2, and a material lifting unit 3 is provided below the forming cavity 1. The outer packaging paper feeding unit 2 includes a suction conveyor belt 21, the lower surface of which is a conveying working surface. The suction conveyor belt 21 includes an infeed section and an outfeed section. A material receiving platform 22 for placing materials is provided below the infeed section. A front wheel and a rear wheel for driving the suction conveyor belt 21 to circulate are provided on the frame. The suction conveyor belt 21 is located between the front wheel and the rear wheel. A negative pressure conveying channel is provided between the infeed section of the suction conveyor belt 21 and the material receiving platform 22. The suction conveyor belt 21 is arranged above the material receiving platform 22. The suction conveyor belt 21 has several adsorption holes. The adsorption holes are connected to a negative pressure source through a negative pressure pipeline. The negative pressure source draws air through the adsorption holes, causing the outer packaging paper placed on the material receiving surface to be adsorbed onto the lower surface of the suction conveyor belt 21, thereby driving the outer packaging paper to move. The frame is equipped with a glue spraying component 11, which can be positioned on the left or front left of the material receiving platform 22 (generally, the left side of the packaging paper is stacked outside the right side; if the right side of the packaging paper is stacked outside the left side, the glue spraying component 11 is positioned on the right side accordingly). The material transfer path of the suction conveyor belt 21 passes above the glue spraying component 11. The glue spraying component 11 sprays glue upwards perpendicular to the material transfer path, with the glue nozzle facing upwards, thus spraying glue onto the bottom of the outer packaging paper. Because the outer packaging paper is adsorbed onto the lower surface of the suction conveyor belt 21, the glue spraying component 11 directly sprays the glue onto the corresponding side of the outer packaging paper, preventing glue from contaminating the suction conveyor belt 21.

[0025] The top material unit 3 includes a large top plate 31 and a small top plate 32. The large top plate 31 has a cavity for accommodating the small top plate 32. The large top plate 31 is connected to a first lifting drive unit, and the small top plate 32 is connected to a second lifting drive unit. When the top material unit 3 is in operation, the large top plate 31 and the small top plate 32 rise together. When the top material unit 3 is in a clearance state, the large top plate 31 descends before the small top plate 32. The material transfer path of the suction conveyor belt 21 passes directly above the top material unit 3, and the top material path of the top material unit 3 passes sequentially through the suction conveyor belt 21 and the folding unit 4. The specific structures of the first lifting drive unit and the second lifting drive unit in this embodiment are as follows: The first lifting drive unit includes a first linkage group 61 and a first lifting drive cam 62. The first linkage group 61 is disposed between the large top plate 31 and the first lifting drive cam 62. The first linkage group 61 includes a first follower, a first link and a first lifting seat. The first link is used to connect the first lifting seat and the first follower. The large top plate 31 is disposed on the first lifting seat. The first follower is in rolling connection with the first cam plane of the first lifting drive cam 62. The large top plate 31 is moved up and down through the linkage between the first lifting drive cam 62, the first follower, the first link and the first lifting seat. The second lifting drive unit includes a second linkage group 63 and a second lifting drive cam 64. The second linkage group 63 is disposed between the small top plate 32 and the second lifting drive cam 64. The second linkage group 63 includes a second follower, a second link, and a second lifting seat. The second link connects the second lifting seat and the second follower. The small top plate 32 is disposed on the second lifting seat. The second follower is in rolling connection with the second cam plane of the second lifting drive cam 64. The small top plate 32 is moved up and down through the linkage between the second lifting drive cam 64, the second follower, the second link, and the second lifting seat. The design of the first cam plane profile and the second cam plane profile is a conventional technique for those skilled in the art. The first lifting drive cam 62 and the second lifting drive cam 64 are disposed on the active rotating shaft 7. The active rotating shaft 7 is rotatably disposed on the left and right wall plates of the frame. One end of the active rotating shaft 7 extends out of the wall plate and is connected to a motor. The motor drives the active rotating shaft 7 to rotate, thereby driving the first lifting drive cam 62 and the second lifting drive cam 64 to rotate. The first lifting drive unit of the large roof panel 31 and the second lifting drive unit of the small roof panel 32 can also have independent power sources.

[0026] The hemming unit 4 is used to fold the left and right sides of the outer wrapping paper. The hemming unit 4 includes a translation plugboard 42. The translation plugboard 42 is arranged on both sides of the forming cavity 1, and the translation plugboards 42 on both sides can move relative to each other. The hemming unit 4 further includes a suction crossbeam 41. The suction crossbeam 41 is arranged below the translation plugboard 42. The suction crossbeam 41 is used to adsorb the left and right sides of the outer wrapping paper. The suction crossbeam 41 has suction holes. The suction crossbeam 41 is connected to an air pump through a suction pipeline. The suction holes are correspondingly arranged on the side perpendicular to the ground plane, so that the outer wrapping paper is in a "冂" shape. The suction crossbeam 41 can be at the same height as or slightly higher than the suction conveyor belt 21. There is a fixed seat on the machine frame. The top of the fixed seat has a slider. The bottom of the translation plugboard 42 has a horizontal guide rail. The slider is slidably matched with the horizontal guide rail. The translation plugboard 42 can move left and right relative to the blanking unit 3. The suction crossbeam 41 is arranged at the bottom of the fixed seat. The hemming unit 4 is arranged on both sides of the blanking unit 3. The translation plugboards 42 on both sides can move relative to each other. The translation plugboards 42 on both sides of the blanking unit 3 move relatively left and right and move closer to the middle. The translation plugboard 42 correspondingly has a first position and a second position. The first position means that the translation plugboard 42 contacts the two ends of the paper stack. At this time, the large top plate 31 descends to avoid interference with the translation plugboard 42 moving to the second position. At the second position, the translation plugboards 42 on both sides have mostly supported the paper stack. At this time, the paper stack is not easily deformed due to gravity. At this time, the small top plate 32 descends to avoid the translation plugboard 42.

[0027] On one side of the forming cavity 1, there is a discharging mechanism. The discharging mechanism includes a push plate 5 that can move left and right. The push plate 5 can assist the translation plugboard 42 to realize the middle sealing action. In addition, the push plate 5 can be used for the connection between processes. The top of the machine frame has a guide rod. The axis of the guide rod is arranged along the left and right horizontal directions. The push plate 5 is sleeved on the guide rod. The push plate 5 can be connected to a cam connection drive structure or a linear drive mechanism such as a cylinder to realize the left and right movement of the push plate 5. Above the translation plugboard 42 on the opposite side of the discharging mechanism, there is a discharging channel. The push plate 5 is connected between the forming cavity 1 and the discharging channel. In this embodiment, the discharging channel is arranged above the left translation plugboard 42, and the push plate 5 is arranged above the right translation plugboard 42. The push plate 5 pushes the material into the discharging channel of the left translation plugboard 42 and sends it to the next process.

[0028] In order to further ensure the packaging quality, a paper pressing head 8 is arranged in the upper part of the forming cavity 1. The paper pressing head 8 is arranged above the hemming unit 4. The paper pressing head 8 is传动连接 to a paper pressing drive unit 81 that drives it to move up and down. The paper pressing drive unit 81 can be a cylinder. The paper pressing drive unit 81 drives the paper pressing head 8 to cooperate with the blanking unit 3 to clamp and transfer materials. The paper pressing head 8 can be separately arranged on the machine frame. The push plate 5 and the paper pressing head 8 are arranged in a staggered manner to avoid interference. It can also be as attached Figure 1As shown in the figure, the paper pressing head 8 and the pushing plate 5 are both arranged on the moving seat 9. The moving seat 9 slides on the pushing guide rail of the rack, and the moving seat 9 drives the paper pressing head 8 and the pushing plate 5 to move left and right together.

[0029] In order to center the paper stack relative to the outer wrapping paper, a positioning frame 10 is provided in the forming cavity 1. The positioning frame 10 is arranged between the blanking unit 3 and the outer wrapping paper feeding unit 2. The positioning frame 10 has a material moving channel for the blanking unit 3 to pass through up and down. The positioning frame 10 prevents the position of the paper stack from shifting and affecting the packaging quality. In addition, the positioning frame 10 is in a "C" shape. The upper and lower sides and the left side of the positioning frame 10 can correct the posture of the paper stack to ensure the regularity of the paper stack. In addition, the right side of the positioning frame 10 has an opening, which facilitates the paper stack to enter the supporting plane of the blanking unit 3. In the initial state, the supporting plane of the blanking unit 3 and the positioning frame 10 form a material placing cavity to ensure the consistency of the placement position of the paper stack and the packaging quality. Among them, the positioning frame 10 is detachably arranged or adjusted left and right on the rack, and the way of adjusting left and right is the conventional technology of those skilled in the art.

[0030] The working principle of the present invention will be described below in conjunction with the accompanying drawings: The paper stack is placed on the blanking unit 3 in the forming cavity 1 manually or by a feeding device, and the posture of the paper stack is corrected by the positioning frame 10. While the paper stack is being fed, the suction belt adsorbs the outer wrapping paper. During the process of transferring the outer wrapping paper, it first passes through the glue spraying component 11. The glue spraying component 11 sprays glue upward, so that the inner surface of one side of the outer wrapping paper is sprayed with glue. The suction belt then continues to transport the outer wrapping paper above the forming cavity 1. The blanking unit 3 carries the paper stack upward until the upper surface of the paper stack contacts the inner surface of the outer wrapping paper. At the same time of contact, the paper pressing head 8 moves downward and cooperates with the blanking unit 3 to clamp the outer wrapping paper and the paper stack to prevent relative displacement between the two. Subsequently, the paper pressing head 8 and the blanking unit 3 cooperate to clamp the material and move upward. After moving upward in place, the suction cross beams 41 on both sides respectively adsorb the left side and the right side of the outer wrapping paper, making the outer wrapping paper roughly in a "冂" shape. The translation inserts 42 on both sides move towards the middle. When the translation inserts 42 reach the first position, the large top plate 31 enters the avoidance state, and the first lifting drive cam 62 drives the large top plate 31 to move downward to avoid the translation inserts 42. Subsequently, when the translation inserts 42 on both sides continue to move closer to the middle to the second position, the small top plate 32 enters the avoidance state and moves downward to avoid. The translation inserts 42 on both sides continue to move until in place, the paper pressing head 8 returns to its original position, and the pushing plate 5 pushes the material into the discharge channel to enter the next process. During the pushing process of the pushing plate 5, the right side of the outer wrapping paper is assisted to overlap with the left side, and the glue fixes the two. The material completes the middle sealing action in the forming cavity 1.

[0031] In the description of this invention, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A material lifting and sealing device for a paper stacking and baling equipment, characterized in that: It includes a frame, on which there is a forming cavity (1). Above the forming cavity (1), there is an outer wrapping paper feeding unit (2) arranged on both sides. Above the outer wrapping paper feeding unit (2), there is also a hemming unit (4). Below the forming cavity (1), there is a blanking unit (3). The outer wrapping paper feeding unit (2) includes a suction conveyor belt (21), and the lower surface of the suction conveyor belt (21) is the conveying working surface. The blanking unit (3) includes a large top plate (31) and a small top plate (32). There is a receiving cavity for accommodating the small top plate (32) inside the large top plate (31). The large top plate (31) is connected to the first lifting drive unit, and the small top plate (32) is connected to the second lifting drive unit. When the blanking unit (3) is in the working state, the large top plate (31) and the small top plate (32) rise together. When the blanking unit (3) is in the避让 state, the large top plate (31) descends before the small top plate (32). The hemming unit (4) includes a translation plug board (42). The translation plug board (42) is arranged on both sides of the forming cavity (1), and the translation plug boards (42) on both sides can move relative to each other.

2. The material lifting and sealing device of the paper stacking and baling equipment according to claim 1, characterized in that: The suction conveyor belt (21) includes a feeding section and a discharging section. Below the feeding section, there is a material receiving platform (22) for placing materials. There is a negative pressure conveying channel between the feeding section of the suction conveyor belt (21) and the material receiving platform (22). The discharging section of the suction conveyor belt (21) is located above the forming cavity (1).

3. The material lifting and sealing device of the paper stacking and baling equipment according to claim 1, characterized in that: The first lifting drive unit includes a first link group (61) and a first lifting drive cam (62). The first link group (61) is arranged between the large top plate (31) and the first lifting drive cam (62). The second lifting drive unit includes a second link group (63) and a second lifting drive cam (64). The second link group (63) is arranged between the small top plate (32) and the second lifting drive cam (64). The first lifting drive cam (62) and the second lifting drive cam (64) are arranged on the driving rotating shaft (7).

4. The material lifting and sealing device of the paper stacking and baling equipment according to claim 1, characterized in that: Above the forming cavity (1), there is also a paper pressing head (8). The paper pressing head (8) is arranged above the hemming unit (4). The paper pressing head (8) is传动连接 to a paper pressing drive unit (81) that drives it to move up and down. The paper pressing drive unit (81) drives the paper pressing head (8) to cooperate with the blanking unit (3) to clamp and transfer materials.

5. The material lifting and sealing device of the paper stacking and baling equipment according to claim 1, characterized in that: Inside the forming cavity (1), there is a positioning frame (10). The positioning frame (10) is arranged between the blanking unit (3) and the outer wrapping paper feeding unit (2). The positioning frame (10) has a material transfer channel for the blanking unit (3) to pass through up and down.

6. The material lifting and sealing device of the paper stacking and baling equipment according to claim 5, characterized in that: On one side of the positioning frame (10), there is a paper stack inlet, and the positioning frame (10) is in the shape of a "匚".

7. The material lifting and sealing device of the paper stacking and baling equipment according to claim 1, characterized in that: On one side of the forming cavity (1), there is a discharging mechanism. The discharging mechanism includes a push plate (5) that can move left and right. Above the translation plug board (42) on the opposite side of the discharging mechanism, there is a discharging channel. The push plate (5) is connected between the forming cavity (1) and the discharging channel.

8. The material lifting and sealing device of the paper stacking and baling equipment according to claim 1, characterized in that: The hemming unit (4) further includes a suction cross beam (41), the suction cross beam (41) is arranged below the translation plug board (42), and the suction cross beam (41) is used for adsorbing the left and right sides of the outer wrapping paper, so that the outer wrapping paper is in a "冂" shape.

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