An easily replaceable glue roller device for a pasting machine

Abstract

The utility model provides a kind of easy replacement device of glue roller for pasting machine, comprising: oppositely arranged bottom plate and top plate, support rod is fixedly installed between the bottom plate and the top plate in four corners, the easy replacement component that is convenient for the disassembly and replacement of glue roller is provided between the bottom plate and the top plate, the easy replacement component includes: lower connecting plate, left support plate, left adjusting bolt, upper connecting plate, right support plate and right adjusting bolt, the lower connecting plate left end is fixedly installed to the connecting column circumferential outer wall and penetrates, the left support plate is detachably installed in lower connecting plate top side left end by 2 left adjusting bolts, the upper connecting plate is detachably installed in left support plate top end by 2 left adjusting bolts located in upper end, the right side front and rear ends of lower connecting plate and the right side front and rear ends of upper connecting plate are all detachably installed right support plate by 2 right adjusting bolts respectively.The kind of easy replacement device of glue roller for pasting machine can save time and be easy to operate when replacing glue roller.

Description

Technical Field

[0001] This utility model relates to the field of paste-making machine technology, and more specifically, to an easy-to-replace device for a paste-making machine's uniform roller. Background Technology

[0002] In the packaging and printing industry, bottom gluing machines are used as the final step in packaging box processing, folding and gluing the printed and die-cut cardboard. Compared to manual bottom gluing, machine gluing is more efficient and produces more consistent quality, making it the primary processing method currently.

[0003] The gluing process is crucial during the bottom pasting process, requiring the application of glue to the bottom of the paper bag for proper adhesion. However, the glue is greatly affected by ambient temperature and is prone to hardening during transport to the gluing roller. Once the glue hardens, the amount transferred to the paper bag by the roller decreases, resulting in a weak bond. Furthermore, uneven glue application, with some areas having too much glue and others too little, affects the quality and appearance of the packaging box.

[0004] To address these issues, a glue roller is used to adjust the glue dispensing amount, ensuring sufficient and evenly distributed glue on the paper bag surface. This allows the glue to cover the paper bag smoothly and evenly, improving the bonding effect of the packaging box and the quality of the finished product.

[0005] However, most commonly used applicator rollers are now integrated units. Even if only a part of them is damaged, the entire roller must be replaced. This not only increases equipment costs but also makes replacement cumbersome, requiring professionals to spend a significant amount of time disassembling and installing, thus delaying production and reducing efficiency. Therefore, there is an urgent need for an applicator roller device that is time-saving and easy to operate to meet the production needs of the packaging and printing industry.

[0006] This invention can save time and simplify the operation of replacing the glue-spreading roller. Summary of the Invention

[0007] The present invention aims to solve the technical problems mentioned in the background art and provide an easy-to-replace device for the uniform glue roller of the paste-making machine.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-replace device for a glue-spreading machine's uniform roller, comprising: a bottom plate and a top plate arranged opposite to each other, with support rods fixedly installed at the four corners between the bottom plate and the top plate, and an easy-to-replace component for convenient disassembly and replacement of the uniform roller provided between the bottom plate and the top plate, the easy-to-replace component comprising: a lower connecting plate, a left support plate, a left adjusting bolt, an upper connecting plate, a right support plate, and a right adjusting bolt, the left end of the lower connecting plate being fixedly installed through the outer circumference of the connecting column, the left support plate being detachably installed at the middle left end of the top side of the lower connecting plate via two left adjusting bolts, the upper connecting plate being detachably installed at the top end of the left support plate via two left adjusting bolts located at the upper end, and the right front and rear ends of the lower connecting plate and the right front and rear ends of the upper connecting plate being detachably installed with two right adjusting bolts respectively.

[0009] A further preferred embodiment: a fixing seat is detachably installed through the left end of the base plate, a fixing plate is fixedly installed on the bottom side of the fixing seat, and the fixing plate is detachably installed on the bottom side of the base plate by four fixing bolts at equal intervals around the bottom end of the fixing plate, and a connecting column is fixedly installed on the top side of the fixing seat.

[0010] A further preferred embodiment: the left adjusting bolt includes two left adjusting bolts located at the lower end and two left adjusting bolts located at the upper end. The left adjusting bolts are movable in the vertical direction. The two left adjusting bolts located at the lower end pass through the left end of the lower connecting plate and the bottom end of the left support plate from bottom to top. The two left adjusting bolts located at the upper end pass through the left end of the upper connecting plate and the top end of the left support plate from top to bottom.

[0011] A further preferred embodiment: A left glue-spreading rod is rotatably mounted on the right end of the upper connecting plate via a bearing, and the bottom end of the left glue-spreading rod is also rotatably mounted on the right end of the lower connecting plate via a bearing. There is a gap between the top side of the left glue-spreading rod and the bottom side of the top plate, and a left glue-spreading roller is fixedly mounted on the outer circumference of the left glue-spreading rod.

[0012] A further preferred embodiment: a drive gear is detachably installed at the top of the outer circumference of the left glue-spreading rod; a right glue-spreading rod is rotatably installed on the right end of the upper connecting plate via a bearing; the bottom end of the right glue-spreading rod is also rotatably installed on the right end of the lower connecting plate via a bearing; there is also a gap between the top side of the right glue-spreading rod and the bottom side of the top plate; and a right glue-spreading roller is fixedly installed on the outer circumference of the right glue-spreading rod.

[0013] A further preferred embodiment: a driven gear is detachably installed at the top of the outer circumference of the right uniform adhesive rod, the driving gear meshes with the driven gear, and the transmission ratio between the driving gear and the driven gear is 2:1.

[0014] A further preferred embodiment: the coating roller includes a left coating roller and a right coating roller, with a gap between the left coating roller and the right coating roller to facilitate coating.

[0015] A further preferred embodiment: the right adjusting bolt includes two right adjusting bolts located at the lower end and two right adjusting bolts located at the upper end. The right adjusting bolts are movable in the horizontal direction. The two right adjusting bolts located at the lower end pass through the bottom end of the right support plate and the right end of the lower connecting plate from right to left. The two right adjusting bolts located at the upper end pass through the top end of the right support plate and the right end of the upper connecting plate from right to left.

[0016] A further preferred embodiment: A motor is fixedly installed on the left side of the top plate, and the output end of the motor penetrates downward through the top plate and the left end of the upper connecting plate. There is a gap between the outer circumference of the output end of the motor and the inner wall of the through groove at the left end of the upper connecting plate. Beneficial effects

[0017] 1. The dispensing roller can be quickly disassembled and assembled using separate support plates (left support plate and right support plate) and adjusting bolts (left / right adjusting bolts). When replacing, only the bolts need to be removed to remove the support plate, without disassembling the entire equipment, which significantly reduces the replacement time of the dispensing roller. The left / right support plates are fixed to the connecting plate with multiple bolts to ensure structural stability during high-speed rotation.

[0018] 2. The left support plate is fixed vertically by a left adjusting bolt, which controls the separation of the left support plate from the lower and upper connecting plates; the right support plate is fixed horizontally by a right adjusting bolt, which enables quick disassembly.

[0019] 3. In summary, traditional glue-spreading rollers have an integrated structure, requiring replacement of the entire unit when damaged in one area. This device separates the glue-spreading roller assembly (upper connecting plate, left / right glue-spreading rods, glue-spreading roller, gears) from the frame by adjusting bolts. Damaged parts can be quickly replaced simply by removing the bolts, reducing equipment costs and downtime. The operation is simplified, requiring no professional personnel; disassembly can be completed by unscrewing the bolts, improving replacement efficiency (compared to the traditional method that requires disassembling complex mechanical structures). It is suitable for the glue application process of various glue-spreading machines, and is especially suitable for production lines where the glue hardens easily and the glue-spreading roller requires frequent maintenance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0022] Figure 3 This is a schematic diagram of the front-view planar structure of this utility model.

[0023] Figure 4 This is a schematic diagram of the planar structure from the right-side view of this utility model.

[0024] Figure 5 This is a three-dimensional structural diagram of the easily replaceable component of this utility model.

[0025] Figure 6 This is a three-dimensional structural diagram of the easily replaceable component of this utility model after the left and right support plates are separated.

[0026] Figure 7 This is a three-dimensional structural diagram of the easily replaceable component of this utility model after the left and right support plates are separated, from another perspective.

[0027] Figure 1-7 Components: 1. Base plate; 2. Top plate; 3. Support rod; 4. Fixing seat; 5. Fixing plate; 6. Fixing bolt; 7. Connecting column; 8. Lower connecting plate; 9. Left support plate; 10. Left adjusting bolt; 11. Upper connecting plate; 12. Left glue spreading rod; 13. Bearing; 14. Left glue spreading roller; 15. Drive gear; 16. Right glue spreading rod; 17. Right glue spreading roller; 18. Driven gear; 19. Right support plate; 20. Right adjusting bolt; 21. Motor. Detailed Implementation

[0028] The following will refer to the appendix in the embodiments of this utility model. Figures 1-7 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0029] Please see Figure 1-7 In this embodiment of the present invention, a replaceable device for a glue-spreading roller in a paste-making machine includes: a bottom plate 1 and a top plate 2 arranged opposite to each other, with support rods 3 fixedly installed at each of the four corners between the bottom plate 1 and the top plate 2. The bottom plate 1 and the top plate 2 are arranged opposite to each other, and the four corners are connected by the support rods 3 to form a frame. A replaceable component for easy disassembly and replacement of the glue-spreading roller is provided between the bottom plate 1 and the top plate 2. The replaceable component includes: a lower connecting plate 8, a left support plate 9, a left adjusting bolt 10, an upper connecting plate 11, a right support plate 19, and a right adjusting bolt 20. The left end of the lower connecting plate 8 is fixedly installed through the outer wall of the connecting column 7. The left support plate 9 is detachably installed on the top left side via two left adjusting bolts 10. The top of the left support plate 9 is detachably installed on the upper connecting plate 11 via two left adjusting bolts 10 located at the top. The right front and rear ends of the lower connecting plate 8 and the right front and rear ends of the upper connecting plate 11 are each detachably installed on the right support plate 19 via two right adjusting bolts 20. The core components of the easily replaceable assembly are the lower connecting plate 8, the left support plate 9, the upper connecting plate 11, and the right support plate 19. They are detachably connected via left adjusting bolts 10 (vertical direction) and right adjusting bolts 20 (horizontal direction), which facilitates quick assembly and disassembly of the glue-equalizing roller assembly.

[0030] In this embodiment of the utility model, a fixing seat 4 is detachably installed through the left end of the base plate 1. A fixing plate 5 is fixedly installed on the bottom side of the fixing seat 4. The fixing plate 5 is detachably installed on the bottom side of the base plate 1 by four fixing bolts 6 at equal intervals around the bottom end. A connecting column 7 is fixedly installed on the top side of the fixing seat 4. The fixing seat 4 and the fixing plate 5 are installed on the base plate 1 by fixing bolts 6. The connecting column 7 passes through the left end of the lower connecting plate 8 to provide a reference for component installation. The fixing seat 4 and the base plate 1 are detachably connected, which facilitates the installation and adaptation of the device with different models of paste-on machines.

[0031] In this embodiment of the utility model, the left adjusting bolt 10 includes two left adjusting bolts 10 located at the lower end and two left adjusting bolts 10 located at the upper end. The left adjusting bolts 10 are movable in the vertical direction. The two left adjusting bolts 10 located at the lower end pass through the left end of the lower connecting plate 8 and the bottom end of the left support plate 9 from bottom to top. The two left adjusting bolts 10 located at the upper end pass through the left end of the upper connecting plate 11 and the top end of the left support plate 9 from top to bottom. The left / right adjusting bolts (10 / 20) can also be used with nylon locking nuts or thread-locking adhesive to avoid frequent tightening and prevent the left / right adjusting bolts (10 / 20) from loosening during equipment vibration. The left adjusting bolts 10 fix the left support plate 9 and connect the lower connecting plate 8 and the upper connecting plate 11 to achieve vertical fixing and disassembly.

[0032] In this embodiment of the present invention, a left glue-spreading rod 12 is rotatably mounted on the right end of the upper connecting plate 11 via a bearing 13, and the bottom end of the left glue-spreading rod 12 is also rotatably mounted on the right end of the lower connecting plate 8 via a bearing 13. There is a gap between the top side of the left glue-spreading rod 12 and the bottom side of the top plate 2. A left glue-spreading roller 14 is fixedly mounted on the outer circumference of the left glue-spreading rod 12. The surface of the glue-spreading roller can also be coated with a Teflon coating to reduce glue adhesion, extend service life and reduce cleaning difficulty.

[0033] In this embodiment of the utility model, a drive gear 15 is detachably installed on the top of the outer circumference of the left glue-spreading rod 12. A right glue-spreading rod 16 is rotatably installed on the right end of the upper connecting plate 11 via a bearing 13. The bottom end of the right glue-spreading rod 16 is also rotatably installed on the right end of the lower connecting plate 8 via a bearing 13. There is also a gap between the top side of the right glue-spreading rod 16 and the bottom side of the top plate 2. A right glue-spreading roller 17 is fixedly installed on the outer circumference of the right glue-spreading rod 16. The bearing 13 can reduce the rotational friction of the glue-spreading rod and ensure smooth operation.

[0034] In this embodiment of the invention, a driven gear 18 is detachably installed on the top of the outer circumference of the right uniform glue rod 16. The driving gear 15 meshes with the driven gear 18, and the transmission ratio between the driving gear 15 and the driven gear 18 is 2:1. The driving gear 15 (left uniform glue rod 12) and the driven gear 18 (right uniform glue rod 16) adopt a 2:1 transmission ratio, which causes a speed difference between the left and right uniform glue rollers (14 / 17). The speed of the right uniform glue roller is higher than that of the left uniform glue roller. The high-speed roller spreads the glue, and the low-speed roller compacts the coating. The speed difference enhances the spread and uniform distribution of the glue, solving the problem of uneven coating of traditional uniform glue rollers. In addition, a transparent protective cover (polycarbonate material) can be detachably installed on the top plate 2 to prevent the driving gear 15 and the driven gear 18 from being exposed to the glue environment for a long time, which prevents glue splashing and does not affect the observation of the meshing state of the gear set.

[0035] In this embodiment of the utility model, the glue-spreading roller includes a left glue-spreading roller 14 and a right glue-spreading roller 17. There is a gap between the left glue-spreading roller 14 and the right glue-spreading roller 17 to spread the glue evenly, ensure thermal expansion margin, and prevent the bearing 13 from jamming. In addition, a lip seal and an end cap can be detachably installed on the outside of the bearing 13 to prevent glue from seeping into the bearing 13 and causing jamming. The surface of the left / right glue-spreading rollers (14 / 17) can also be provided with micro-pit texture (laser engraving) to improve the glue carrying capacity.

[0036] In this embodiment of the utility model, the right adjusting bolt 20 includes two right adjusting bolts 20 located at the lower end and two right adjusting bolts 20 located at the upper end. The right adjusting bolts 20 are movable in the horizontal direction. The two right adjusting bolts 20 located at the lower end pass through the bottom end of the right support plate 19 and the right end of the lower connecting plate 8 from right to left. The two right adjusting bolts 20 located at the upper end pass through the top end of the right support plate 19 and the right end of the upper connecting plate 11 from right to left. The right adjusting bolts 20 fix the right support plate 19 and connect the right side of the lower connecting plate 8 and the upper connecting plate 11, realizing horizontal fixing and disassembly.

[0037] In this embodiment of the utility model, a motor 21 is fixedly installed on the left side of the top plate 2. The output end of the motor 21 passes through the top plate 2 and the left end of the upper connecting plate 11. There is a gap between the outer circumference of the output end of the motor 21 and the inner wall of the groove through which the left end of the upper connecting plate 11 passes. The output end of the motor 21 drives the glue roller (not shown in the figure) to apply glue to the glue-spreading roller. The glue-spreading roller is passively driven by a gear set to avoid direct load on the motor. Other motors (not shown in the figure) are also installed on the top side of the top plate 2 to drive the drive gear 15 to rotate through a gear set, so as to realize the rotation of the glue-spreading roller to spread glue.

[0038] Working principle: When the leveling roller needs to be replaced, turn the four right adjusting bolts 20 to the right and remove the right support plate 19. Turn the four left adjusting bolts 10 upward and downward respectively and remove the left support plate 9. Then disassemble the drive gear 15, driven gear 18 and bearing 13. Remove the upper connecting plate 11 and the leveling roller on it. Take out the leveling roller that needs to be replaced and install the new leveling roller. Restore in the reverse order. The replacement time of the traditional integrated leveling roller is long. This device can shorten the replacement time and is suitable for high-frequency production lines.

Claims

1. A device for easily replacing the gluing roller in a paste-making machine, comprising: A base plate (1) and a top plate (2) are arranged opposite to each other, and support rods (3) are fixedly installed at the four corners between the base plate (1) and the top plate (2). The feature is that an easy-to-replace assembly for easy disassembly and replacement of the leveling roller is provided between the base plate (1) and the top plate (2). The easy-to-replace assembly includes: a lower connecting plate (8), a left support plate (9), a left adjusting bolt (10), an upper connecting plate (11), a right support plate (19), and a right adjusting bolt (20). The left end of the lower connecting plate (8) A left support plate (9) is detachably installed on the left side of the top side of the lower connecting plate (8) via two left adjusting bolts (10). An upper connecting plate (11) is detachably installed on the top of the left support plate (9) via two left adjusting bolts (10) located at the top. A right support plate (19) is detachably installed on the front and rear ends of the right side of the lower connecting plate (8) and the front and rear ends of the right side of the upper connecting plate (11) via two right adjusting bolts (20).

2. The easy-to-replace device for the leveling roller of a paste-making machine according to claim 1, characterized in that: A fixed seat (4) is detachably installed through the left end of the base plate (1). A fixed plate (5) is fixedly installed on the bottom side of the fixed seat (4). The fixed plate (5) is detachably installed on the bottom side of the base plate (1) by four fixed bolts (6) at equal intervals around the bottom end of the fixed plate (5). A connecting column (7) is fixedly installed on the top side of the fixed seat (4).

3. The easy-to-replace device for the leveling roller of a paste-making machine according to claim 1, characterized in that: The left adjusting bolt (10) includes two left adjusting bolts (10) located at the lower end and two left adjusting bolts (10) located at the upper end. The left adjusting bolts (10) move in the vertical direction. The two left adjusting bolts (10) located at the lower end pass through the left end of the lower connecting plate (8) and the bottom end of the left support plate (9) from bottom to top. The two left adjusting bolts (10) located at the upper end pass through the left end of the upper connecting plate (11) and the top end of the left support plate (9) from top to bottom.

4. The easy-to-replace device for the leveling roller of a paste-making machine according to claim 1, characterized in that: The upper connecting plate (11) has a left glue-spreading rod (12) rotatably mounted on the right end via a bearing (13). The bottom end of the left glue-spreading rod (12) is also rotatably mounted on the right end of the lower connecting plate (8) via a bearing (13). There is a gap between the top side of the left glue-spreading rod (12) and the bottom side of the top plate (2). A left glue-spreading roller (14) is fixedly mounted on the outer circumference of the left glue-spreading rod (12).

5. The easy-to-replace device for the leveling roller of a paste-making machine according to claim 4, characterized in that: The top of the outer circumference of the left uniform glue rod (12) is detachably equipped with a drive gear (15). The right end of the upper connecting plate (11) is rotatably equipped with a right uniform glue rod (16) via a bearing (13). The bottom end of the right uniform glue rod (16) is also rotatably equipped with a bearing (13) on the right end of the lower connecting plate (8). There is also a gap between the top side of the right uniform glue rod (16) and the bottom side of the top plate (2). The outer circumference of the right uniform glue rod (16) is fixedly equipped with a right uniform glue roller (17).

6. The easy-to-replace device for the leveling roller of a paste-making machine according to claim 5, characterized in that: The right uniform adhesive rod (16) has a driven gear (18) detachably installed at the top of its outer circumference. The driving gear (15) meshes with the driven gear (18), and the transmission ratio between the driving gear (15) and the driven gear (18) is 2:

1.

7. The easy-to-replace device for the leveling roller of a paste-making machine according to claim 1, characterized in that: The glue-spreading rollers include a left glue-spreading roller (14) and a right glue-spreading roller (17), with a gap between the left glue-spreading roller (14) and the right glue-spreading roller (17) to facilitate glue spreading.

8. The easy-to-replace device for the leveling roller of a paste-making machine according to claim 1, characterized in that: The right adjusting bolt (20) includes two right adjusting bolts (20) located at the lower end and two right adjusting bolts (20) located at the upper end. The right adjusting bolts (20) move in the horizontal direction. The two right adjusting bolts (20) located at the lower end pass through the bottom end of the right support plate (19) and the right end of the lower connecting plate (8) from right to left. The two right adjusting bolts (20) located at the upper end pass through the top end of the right support plate (19) and the right end of the upper connecting plate (11) from right to left.

9. The easy-to-replace device for a paste-forming machine's leveling roller according to claim 1, characterized in that: A motor (21) is fixedly installed on the left side of the top plate (2). The output end of the motor (21) penetrates downward through the top plate (2) and the left end of the upper connecting plate (11). There is a gap between the outer circumference of the output end of the motor (21) and the inner wall of the through groove at the left end of the upper connecting plate (11).

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