Gluing device for paperboard production

Abstract

The gluing device for paperboard production comprises a rail support, a portal frame is erected in the middle of the rail support, gluing mechanisms are symmetrically assembled on the portal frame, a paper feeding mechanism is assembled on the rail support and located on one side of the portal frame, and the paper feeding mechanism comprises a sliding plate slidably connected to the rail support. Stand columns are arranged at the four corners of the upper surface of the sliding plate, a mounting plate is arranged on the upper surfaces of the stand columns, a first telescopic rod is mounted on the mounting plate, the output end of the first telescopic rod is connected with a hanging plate, pneumatic clamping units are symmetrically arranged at the lower end of the hanging plate, and the output end of the gluing gun and the pneumatic clamping units are located on the same plane. The pneumatic clamping unit in the paper feeding mechanism can clamp a paper board coated with glue, the air cylinder drives the pressing plate to be matched with the supporting plate, the edge part of the paper board can still be stably clamped under the condition that the paper board is softened, and the situation that the paper board is randomly bent to generate wrinkles due to the softening of the paper board in the conveying process is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of paperboard production equipment, in particular to a gluing device used for paperboard production. Background Art

[0002] Cardboard is mostly used for gift box packaging. During production, multiple layers of thin paper are usually glued together to form cardboard. When gluing, glue needs to be applied on the cardboard. The traditional way is to apply glue on the cardboard with a brush. Applying glue with a brush is inefficient and the flow of glue cannot be controlled, which will cause waste of glue.

[0003] Chinese patent CN210881108U discloses a gluing device for cardboard production. When in use, the flow of glue can be controlled according to the pressing force. The pressing force is different, the distance the gluing roller moves up is different, and the distance the rotating roller moves up is different, thereby changing the flow of glue. When no pressure is applied, the spring will use its elasticity to press the rotating roller against the glue leakage port to prevent glue from leaking. This method replaces the method of applying glue with a brush, greatly improving the efficiency of applying glue.

[0004] Most of the prior art only considers the amount of glue output during the gluing process to avoid waste. However, the cardboard will soften to a certain extent after gluing, which will cause the cardboard to wrinkle when driven by the conveying mechanism during transportation, resulting in misalignment or overlap during bonding. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In order to solve the problems raised in the above background technology, the present invention adopts the following technical solutions.

[0007] A gluing device for paperboard production, comprising a track bracket, a gantry frame is arranged in the middle of the track bracket, a gluing mechanism is symmetrically arranged on the gantry frame, a paper feeding mechanism is arranged on the track bracket and located on one side of the gantry frame, the gluing mechanism comprises a connecting plate fixed on the gantry frame, the connecting plate is obliquely installed on the gantry frame, a slide plate is slidably connected to the front surface of the connecting plate, and a plurality of gluing guns are installed on the front surface of the slide plate; The paper feeding mechanism includes a slide plate slidably connected to a track bracket, columns are arranged at the four corners of the upper surface of the slide plate, a mounting plate is arranged on the upper surface of the column, a first telescopic rod is mounted on the mounting plate, the output end of the first telescopic rod is connected to a hanging plate, a pneumatic clamping unit is symmetrically arranged at the lower end of the hanging plate, and the output end of the glue gun and the pneumatic clamping unit are on the same plane.

[0008] The pneumatic clamping unit comprises a cylinder installed at the lower end of the hanging plate, an L-shaped supporting plate is fixedly connected to the bottom of the cylinder, and a pressing plate is connected to the output end of the cylinder, and the pressing plate and the supporting plate are arranged opposite to each other.

[0009] Waist holes are symmetrically opened on both sides of the lower end of the hanging plate, and a butterfly bolt is provided at the rear end of the cylinder. The butterfly bolt passes through the waist hole to slide the cylinder to the front surface of the waist hole. The butterfly bolt is turned clockwise to fix the cylinder at any point on the waist hole.

[0010] A roller frame is arranged at one end of the mounting plate close to the glue coating mechanism, and a roller is rotatably connected in the roller frame, and the height of the roller is kept at the same height as the lower end of the pneumatic clamping unit.

[0011] The bottom of the skateboard is integrally connected with an extension plate, and a slide bar is provided on the rear surface of the extension plate, and a slide rail is correspondingly provided on the front surface of the connecting plate, and the slide bar is slidably connected in the slide rail. A second telescopic rod is assembled on one side of the connecting plate, and the output end of the second telescopic rod is connected to one of the ends of the extension plate.

[0012] A glue box is installed at the upper end of the front surface of the slide plate, and the upper end of the glue gun is connected to the lower surface of the glue box. A joint is installed on the side of the glue box. The glue box is connected to a hose through the joint, and the hose is connected to an external glue storage device.

[0013] A paper roll is installed on the track bracket and on the other side of the gantry. Both ends of the paper roll are sleeved with bearing seats, and the bearing seats are fixed on the track bracket.

[0014] An expansion head is sleeved on the paper roll roller and located on the inner side of the bearing seat. The expansion head is a conical structure as a whole, and a plurality of screws are arranged in a circumferential manner on the expansion head. The screws penetrate the expansion head and abut against the surface of the paper roll roller.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The pneumatic clamping unit in the paper feeding mechanism of the present invention can clamp the cardboard after glue is applied, and the cylinder drives the pressure plate to cooperate with the support plate. When the cardboard is softened, the edge part of the cardboard can still be stably clamped to prevent the cardboard from bending and wrinkling randomly due to its own softening during transportation. The multiple pneumatic clamping units arranged at the lower end of the hanging plate can evenly share the weight of the cardboard to prevent the cardboard from tilting or shaking during transportation. The rollers arranged on the mounting plate near one end of the gluing mechanism provide bottom support for the softened cardboard just after glue is applied. The rollers and the pneumatic clamping unit work together to effectively position and support the cardboard at the initial stage of transportation, thereby reducing the possibility of wrinkles in the middle of the cardboard due to gravity or slight disturbances during transportation.

[0016] The first telescopic rod in the present invention can accurately control the translation speed of the hanging plate, thereby steadily pulling the clamped cardboard to move to the next production line. The strength of the softened cardboard is reduced, and the stable traction method can avoid the softened cardboard from wrinkling due to sudden pulling or pushing, and can reduce the damage to the cardboard structure by external forces. At the same time, in the pneumatic clamping unit, the position of the cylinder on the hanging plate can be adjusted by the butterfly bolt, so that the support plate and the pressure plate can be accurately aligned with the edge of the cardboard. The precise clamping can ensure that the relative position of each cardboard is accurate during pasting, reducing the occurrence of misalignment.

[0017] The arrangement of multiple glue guns in the glue coating mechanism of the present invention can evenly coat the surface of the cardboard with glue. Since the glue gun is fixed on a slidable slide, the height of the glue gun can be adjusted to control the height of the glue dripping. The increase in height will enable the glue to obtain more kinetic energy during the falling process. The kinetic energy will be converted into spreading energy when the glue contacts the surface, thereby accelerating the spreading speed and improving the bonding quality of the cardboard. In addition, the connection method between the glue box and the external glue storage device can stably supply glue to the glue gun by adjusting parameters such as the pressure of the glue storage device, which is conducive to ensuring the consistency of glue coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional structure of the glue coating device in the present invention Figure 1 .

[0019] Figure 2 The three-dimensional structure of the glue coating device in the present invention Figure 2 .

[0020] Figure 3 It is a structural diagram of the paper feeding mechanism in the present invention.

[0021] Figure 4 For the present invention Figure 3 A partial enlarged view of the pneumatic clamping unit at point A in the middle.

[0022] Figure 5 The three-dimensional structure of the glue coating mechanism in the present invention Figure 1 .

[0023] Figure 6 The three-dimensional structure of the glue coating mechanism in the present invention Figure 2 .

[0024] Figure 7 This is a structural diagram of the paper roll of the present invention.

[0025] The corresponding relationship between the illustrations and component names in the figure is as follows: 100, track bracket; 101, paper roll roller; 1011, bearing seat; 1012, expansion head; 102, gantry; 200, paper feeding mechanism; 201, slide plate; 2011, column; 2012, mounting plate; 202, first telescopic rod; 2021, hanging plate; 203, cylinder; 2031, supporting plate; 2032, pressing plate; 204, roller; 300, glue coating mechanism; 301, connecting plate; 302, slide plate; 3021, slide bar; 303, glue box; 3031, glue coating gun; 304, second telescopic rod. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0029] See also Figure 1 and Figure 2 , is a structural diagram of a gluing device for cardboard production in this embodiment. The gluing device in this embodiment includes a track bracket 100, a gantry 102 is arranged in the middle of the track bracket 100, a gluing mechanism 300 is symmetrically mounted on the gantry 102, a paper feeding mechanism 200 is mounted on the track bracket 100 and located on one side of the gantry 102, and a paper roll roller 101 is mounted on the track bracket 100 and located on the other side of the gantry 102. Cardboard is made by gluing thin paper, so in this embodiment, a paper roll is placed on the paper roll roller 101, and the end of the paper roll pulled out is placed on the paper feeding mechanism 200. At this time, the paper located below the gluing mechanism 300 is glued by the gluing mechanism 300, and the paper roll coated with glue is continuously driven by the paper feeding mechanism 200 to be sent to the next process.

[0030] See also Figure 1 , Figure 5 and Figure 6The glue coating mechanism 300 in this embodiment includes a connecting plate 301 fixed on the gantry 102, the connecting plate 301 is tiltedly installed on the gantry 102, the front surface of the connecting plate 301 is slidably connected with a slide plate 302, a glue box 303 is installed on the upper end of the front surface of the slide plate 302, and a glue gun 3031 is connected to the lower surface of the glue box 303, so that the glue gun 3031 is installed on the front surface of the slide plate 302, and a joint is installed on the side of the glue box 303, and the glue box 303 is connected to a hose through the joint, and the hose is connected to an external glue storage device. The arrangement of multiple glue coating guns 3031 in this embodiment can Glue is evenly applied on the surface of the paperboard. Since the glue gun 3031 is fixed on the slidable slide plate 302, the height of the glue gun 3031 can be adjusted to control the height of the glue dripping. The higher the height of the glue dripping, the faster it reaches the target surface, which will speed up the spreading speed of the glue on the surface of the paper roll, ensure the coverage of the glue on the paperboard, and improve the bonding quality of the paperboard. In addition, the connection method between the glue box 303 and the external glue storage device can stably supply glue to the glue gun by adjusting the pressure and other parameters of the glue storage device, which is conducive to ensuring the consistency of glue application. Furthermore, in the present embodiment, an extension plate is integrally connected to the bottom of the skateboard 302, and a second telescopic rod 304 is installed on one side of the connecting plate 301. The output end of the second telescopic rod 304 is connected to one of the ends of the extension plates. In the present embodiment, one of the extension plates is pushed and pulled by the second telescopic rod 304, so that the skateboard 302 can slide on the connecting plate 301. To ensure stability during the sliding process, a sliding bar 3021 is provided on the rear surface of the extension plate in the present embodiment, and a sliding rail is correspondingly provided on the front surface of the connecting plate 301, and the sliding bar 3021 is slidably connected to the sliding rail.

[0031] See also Figure 1 , Figure 3 as well as Figure 4 The paper feeding mechanism 200 in this embodiment includes a slide plate 201 slidably connected to the track bracket 100, and columns 2011 are provided at four corners of the upper surface of the slide plate 201. A mounting plate 2012 is provided on the upper surface of the column 2011, and a first telescopic rod 202 is installed on the mounting plate 2012. The output end of the first telescopic rod 202 is connected to a hanging plate 2021, and a pneumatic clamping unit is symmetrically provided at the lower end of the hanging plate 2021. The output end of the glue gun 3031 and the pneumatic clamping unit are on the same plane. In this embodiment, the end of the paper roll is clamped by the pneumatic clamping unit, and the first telescopic rod 202 pushes the hanging plate 2021 to prompt the pneumatic clamping unit to drive the paper roll to move forward. In this process, the paper roll passes through the glue coating mechanism 300 and is coated with glue; Furthermore, the pneumatic clamping unit includes a cylinder 203 installed at the lower end of the hanging plate 2021, and an L-shaped support plate 2031 is fixedly connected to the bottom of the cylinder 203, and a pressure plate 2032 is connected to the output end of the cylinder 203, and the pressure plate 2032 is arranged opposite to the support plate 2031. In this embodiment, the pressure plate 2032 is driven by the cylinder 203 to cooperate with the support plate 2031. When the cardboard is softened, the edge of the cardboard can still be stably clamped to prevent the cardboard from bending and wrinkling due to its own softening during transportation. The pneumatic clamping unit symmetrically arranged at the lower end of the hanging plate 2021 can evenly share the weight of the cardboard to prevent the cardboard from tilting or shaking during transportation.

[0032] Furthermore, in this embodiment, waist holes are symmetrically opened on both sides of the lower end of the hanging plate 2021, and a butterfly bolt is provided at the rear end of the cylinder 203. The butterfly bolt passes through the waist hole to slide the cylinder 203 on the front surface of the waist hole. The butterfly bolt is rotated clockwise to fix the cylinder 203 at any point on the waist hole. In the pneumatic clamping unit of this embodiment, the position of the cylinder 203 on the hanging plate 2021 can be adjusted by the butterfly bolt, so that the pressing plate 2032 and the supporting plate 2031 can be accurately aligned with the edge of the cardboard. Accurate clamping can ensure the accuracy of the relative position of each cardboard during pasting, reducing the occurrence of misalignment.

[0033] See also Figure 3 A roller frame is provided on one end of the mounting plate 2012 close to the gluing mechanism 300, and a roller 204 is rotatably connected in the roller frame to provide bottom support for the softened cardboard just after gluing. The height of the roller 204 is kept at the same height as the lower end of the pneumatic clamping unit. The roller 204 cooperates with the pneumatic clamping unit to effectively position and support the cardboard at the initial stage of transportation, thereby reducing the possibility of wrinkles in the middle of the cardboard due to gravity or slight disturbances during transportation.

[0034] See also Figure 1 and Figure 7In this embodiment, bearing seats 1011 are sleeved at both ends of the paper roll roller 101, and the bearing seats 1011 are fixed on the track bracket 100. The bearing seats 1011 fix the two ends of the paper roll roller 101 on the track bracket 100, providing a stable support point, so that the paper roll roller 101 can remain stable during operation, reduce shaking and deviation, thereby ensuring the stability of paper during transportation. An expansion head 1012 is sleeved on the paper roll roller 101 and located on the inner side of the bearing seat 1011. The expansion head 1012 is a conical structure as a whole, and a plurality of screws are circumferentially arranged on the expansion head 1012. The screws penetrate the expansion head 1012 and abut against the surface of the paper roll roller 101. In this embodiment, when the paper roll is sleeved on the paper roll roller 101, the two ends of the paper roll are abutted by the expansion head 1012, which can effectively prevent the paper roll from sliding along the axial direction on the paper roll roller 101. In the process of cardboard production, the paper roll needs to rotate stably to release the paper. If the paper roll slips, the paper transportation will not be smooth, affecting the production efficiency and the quality of the cardboard. At the same time, the concentricity of the paper roll is not good during rotation, which will cause uneven tension of the paper during transportation, and may cause problems such as paper wrinkles or uneven gluing. The expansion head 1012 fixes the paper roll at both ends, so that the paper roll can better maintain concentricity with the paper roll roller 101. Further, the length of the screw is selected according to the needs. Different screw lengths have different lengths protruding from the expansion head 1012, which indirectly changes the outer diameter of the expansion head, so that the structure can adapt to paper rolls with different inner diameters. In the production process, paper rolls of various specifications may be used. This structure can meet the installation requirements of different paper rolls without replacing the entire paper roll roller.

[0035] It is worth noting that paper bonding does not require glue to be completely and evenly coated on the paper roll. As long as glue is coated on most of the surface of the paper roll to ensure that the paper roll will not curl or bulge after bonding, it will be sufficient. Therefore, the glue brushing mechanism and other equipment for evenly coating the glue are not disclosed in this embodiment, and they can be added when they are actually produced. Furthermore, in this embodiment, the paper feeding mechanism 200 is connected to the track bracket 100 through the slide plate 201, and the slide plate 201 can be displaced as needed to adjust the distance between the paper feeding mechanism 200 and the glue coating mechanism 300, and the glue coating mechanism 300 is installed on the gantry 102 and can also move as a whole.

[0036] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. A gluing device for paperboard production, comprising a track bracket (100), a gantry (102) being arranged in the middle of the track bracket (100), a gluing mechanism (300) being symmetrically mounted on the gantry (102), and a paper feeding mechanism (200) being mounted on the track bracket (100) and located on one side of the gantry (102), Features: The glue coating mechanism (300) comprises a connecting plate (301) fixed on the gantry (102); the connecting plate (301) is obliquely mounted on the gantry (102); a slide plate (302) is slidably connected to the front surface of the connecting plate (301); and a plurality of glue coating guns (3031) are mounted on the front surface of the slide plate (302); The paper feeding mechanism (200) comprises a slide plate (201) slidably connected to a track bracket (100); four corners of the upper surface of the slide plate (201) are provided with upright posts (211); the upper surface of the upright posts (211) is provided with a mounting plate (212); a first telescopic rod (202) is mounted on the mounting plate (2012); the output end of the first telescopic rod (202) is connected to a hanging plate (221); a pneumatic clamping unit is symmetrically provided at the lower end of the hanging plate (221); and the output end of the glue gun (3031) and the pneumatic clamping unit are on the same plane.

2. The gluing device for paperboard production according to claim 1, characterized in that: The pneumatic clamping unit comprises a cylinder (203) mounted at the lower end of a hanging plate (2021); an L-shaped supporting plate (2031) is fixedly connected to the bottom of the cylinder (203); and a pressing plate (2032) is connected to the output end of the cylinder (203); the pressing plate (2032) and the supporting plate (2031) are arranged opposite to each other.

3. The gluing device for paperboard production according to claim 2, characterized in that: The lower end of the hanging plate (221) is symmetrically provided with waist holes on both sides, and the rear end of the cylinder (203) is provided with a butterfly bolt, which passes through the waist hole to slidably connect the cylinder (203) to the front surface of the waist hole, and the butterfly bolt is rotated clockwise to fix the cylinder (203) at any position on the waist hole.

4. The gluing device for paperboard production according to claim 1, characterized in that: A roller frame is provided on one end of the mounting plate (2012) close to the glue coating mechanism (300), and a roller (204) is rotatably connected inside the roller frame, and the height of the roller (204) is maintained at the same height as the lower end of the pneumatic clamping unit.

5. The gluing device for paperboard production according to claim 1, characterized in that: The bottom of the slide plate (302) is integrally connected with an extension plate, and a slide bar (3021) is provided on the rear surface of the extension plate. A slide rail is correspondingly provided on the front surface of the connecting plate (301), and the slide bar (3021) is slidably connected in the slide rail. A second telescopic rod (304) is mounted on one side of the connecting plate (301), and an output end of the second telescopic rod (304) is connected to one end of the extension plate.

6. The gluing device for paperboard production according to claim 5, characterized in that: A glue box (303) is installed at the upper end of the front surface of the slide plate (302), and the upper end of the glue gun (3031) is connected to the lower surface of the glue box (303). A joint is installed on the side of the glue box (303), and the glue box (303) is connected to a hose via the joint, and the hose is connected to an external glue storage device.

7. The gluing device for paperboard production according to claim 1, characterized in that: A paper roll roller (101) is installed on the track bracket (100) and located on the other side of the gantry (102), and bearing seats (1011) are sleeved at both ends of the paper roll roller (101), and the bearing seats (1011) are fixed on the track bracket (100).

8. The gluing device for paperboard production according to claim 7, characterized in that: An expansion head (1012) is sleeved on the paper roll roller (101) and is located on the inner side of the bearing seat (1011); the expansion head (1012) is a conical structure as a whole, and a plurality of screws are arranged on the expansion head (1012) in a circular pattern, the screws passing through the expansion head (1012) and contacting the surface of the paper roll roller (101).

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