A stop device for a paste roller of a labelling machine
Patent Information
- Application Number
- CN202522521298.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-27
AI Technical Summary
[0004]为解决现有技术中的上述问题，本实用新型提供了一种用于贴标机的浆糊滚筒的挡块装置，具有能既不伤害滚筒又能够紧密贴合滚筒表面并有效阻挡胶水上涌的问题的效果
本方案的用于贴标机的浆糊滚筒的挡块装置，通过设置带有缺口的尼龙挡块，缺口处的两个表面形成上下二级阻挡结构，竖向的圆弧侧面与滚筒外圆弧面相匹配形成竖向阻挡，第二表面与浆糊滚筒上端面相接触匹配形成横向阻挡，以限制胶水或浆糊进入滚筒上端，从而避免胶水或浆糊进入滚筒上端轴定位铜套及调心轴承内部。弹性挡块采用尼龙材质，尼龙材质具有耐腐蚀、耐油性的性能，弹性挡块上与浆糊滚筒相连接的一端的形状与尺寸与浆糊滚筒相适配，可以确保能既不伤害滚筒又能够紧密贴合滚筒表面并有效阻挡胶水或浆糊上涌的问题，能够解决现有技术中浆糊滚筒刮刀上端漏胶等缺陷因素容易导致的损耗的问题。
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Figure CN224830016U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of labeling machine technology, specifically relating to a stop device for the paste roller of a labeling machine. Background Technology
[0002] Currently, the upper end stop of the traditional labeling machine paste roller scraper is a single screw fixed end face stop. Its disadvantages are as follows: (1) The scraper pressure, parallelism, angle and stop gap adjustment depend on manual experience. When the stop gap is not matched accurately, there is a gap between the stop and the upper end face of the roller, which causes the paste to overflow from the gap between the stop and the end face of the roller and enter the upper end shaft positioning copper sleeve and the self-aligning bearing, forming dry paste residue. The dry paste residue will accelerate the wear of the stop, copper sleeve and self-aligning bearing during the high-speed operation of the roller. (2) The stop is a single screw fixed type. When it is removed for cleaning, it will collide and move, which will cause a gap between the stop and the upper end face of the roller. This will cause the paste to overflow from the gap between the stop and the end face of the roller and enter the upper end shaft positioning copper sleeve and the self-aligning bearing, forming dry paste residue. The self-aligning bearing with dry paste will cause jamming. When the roller is running at high speed, it will vibrate due to the large resistance. (3) The fit between the scraper and the roller arc surface is an elastic dynamic pressure fit. When the scraper is in closed-loop operation, the fit is 0.00mm and pressure is applied. Due to excessive pressure and the lack of a constant pressure device, the scraper wears quickly when the machine is running idle. Uneven scraper wear causes the paste to splash under centrifugal force, contaminating the surrounding area of the equipment. This results in a large cleaning workload, increased energy and material consumption, and a decrease in production capacity. Therefore, defects such as glue leakage at the upper end of the paste roller scraper can easily lead to wear problems.
[0003] Therefore, a new technology is needed to solve the problem of wear and tear caused by defects such as glue leakage at the upper end of the paste roller scraper in the existing technology. Utility Model Content
[0004] To address the aforementioned problems in the prior art, this utility model provides a stop device for the paste roller of a labeling machine, which has the effect of not damaging the roller, tightly adhering to the roller surface, and effectively preventing glue from flowing upwards.
[0005] The present invention adopts the following technical solution: A stop device for a paste roller of a labeling machine includes a bracket and a fixed plate and an elastic stop mounted on the bracket. The fixed plate and the elastic stop are parallel to each other in the vertical direction and are detachably and tightly connected. The fixed plate is located on the side of the elastic stop away from the bracket. One end of both the fixed plate and the elastic stop are detachably fixed to the bracket in the horizontal direction. The other end of the elastic stop is in contact with the radial outer surface of the paste roller. The upper part of the elastic stop contacts or abuts against the axial end face of the paste roller, and the lower part contacts or abuts against the radial outer surface of the paste roller.
[0006] As a further improvement to the technical solution of this utility model, the elastic stop has a stepped notch at one end near the paste roller. The notch includes a first surface and a second surface connected in an L-shape from bottom to top. The first surface is vertically arranged and contacts or abuts against the radial outer surface of the paste roller, and the second surface is horizontally arranged and contacts or abuts against the axial end face of the paste roller. The fixing plate has the same or similar shape as the elastic stop.
[0007] As a further improvement to the technical solution of this utility model, the first surface is an arc surface.
[0008] As a further improvement to the technical solution of this utility model, it also includes at least two spaced-apart fixing members, one end of each fixing member passing through the fixing plate and the elastic block in sequence and being detachably fixedly connected to the bracket.
[0009] As a further improvement to the technical solution of this utility model, the elastic stop includes a first block and a second block that are fixedly connected to each other in an L-shape. The first block is located below the second block. The first block is vertically arranged, and the second block is horizontally arranged. The first surface is located on the side of the first block near the paste roller, and the second surface is located on the lower end surface of the second block.
[0010] As a further improvement to the technical solution of this utility model, the paste roller includes a shaft end plate, a roller and a cylinder arranged coaxially from top to bottom, the diameter of the roller is smaller than the diameter of the cylinder, and the diameter of the shaft end plate is larger than the diameter of the roller; the second surface contacts or abuts against the upper end surface of the cylinder, and the upper end surface of the second block is located below the lower surface of the shaft end plate; the first surface is in contact with the surface of the cylinder. The second block has a gap between the side near the paste roller and the roller.
[0011] As a further improvement to the technical solution of this utility model, the fixing plate includes a first plate and a second plate that are fixedly connected to each other in an L-shape. The first plate is correspondingly arranged with the first block and its upper and lower ends are flush. The second plate is correspondingly arranged with the second block and its upper and lower ends are flush. There is a gap between the first block and the cylinder; there is a gap between the second block and the roller.
[0012] As a further improvement to the technical solution of this utility model, the elastic block has a positioning protrusion on the side near the bracket, and the bracket has a positioning groove into which the positioning protrusion can be inserted.
[0013] As a further improvement to the technical solution of this utility model, a slot is provided on the side of the bracket near the paste roller, and the end of the elastic block and the fixed plate away from the paste roller is embedded in the slot.
[0014] As a further improvement to the technical solution of this utility model, the slot of the card slot includes a first opening and a second opening that are interconnected. The first opening and the second opening are respectively located on two interconnected and perpendicular vertical sides of the fixing plate, and the first opening faces the paste roller; the elastic stop is bolted to the fixing plate.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This solution provides a stop device for the paste roller of a labeling machine. By incorporating a nylon stop with a notch, the two surfaces at the notch form a two-tiered blocking structure. The vertical arc-shaped side matches the outer arc surface of the roller to create a vertical block, while the second surface contacts and matches the upper end face of the paste roller to create a horizontal block. This restricts the entry of glue or paste into the upper end of the roller, thus preventing it from entering the upper end shaft positioning copper sleeve and the self-aligning bearing. The elastic stop is made of nylon, which is corrosion-resistant and oil-resistant. The shape and size of the end of the elastic stop connected to the paste roller are adapted to the roller, ensuring a tight fit without damaging the roller and effectively preventing glue or paste from flowing upwards. This solves the problem of wear and tear caused by defects such as glue leakage at the upper end of the paste roller scraper in existing technologies. Attached Figure Description
[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Figure 1 This is a schematic diagram of the installation structure of the elastic stop block structure of this utility model; Figure 2 This is the main view of the connection structure between the fixed plate and the elastic stop; Figure 3 This is a top view of the connection structure between the fixed plate and the elastic stop (partial elastic stop structure).
[0017] Figure label: 1-Elastic stop; 11-Notch; 12-First surface; 13-Second surface; 14-First block; 15-Second block; 16-Positioning protrusion; 2-Fixing plate; 21-First mounting hole; 22-Second mounting hole; 23-First plate body; 24-Second plate body; 3-Paste roller; 31-Cylinder body; 32-Roller; 33-Shaft end plate; 4-Factors; 5-Staff. Detailed Implementation
[0018] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.
[0019] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.
[0020] Reference Figures 1 to 3 A stop device for a paste roller of a labeling machine is provided, located at the upper end of the paste roller scraper. It includes a bracket 5, a fixed plate 2, and an elastic stop 1 mounted on the bracket 5. The fixed plate 2 and the elastic stop 1 are vertically parallel and detachably and tightly connected. The fixed plate 2 is located on the side of the elastic stop 1 away from the bracket 5. One end of both the fixed plate 2 and the elastic stop 1 is detachably fixed to the bracket 5 in the horizontal direction. The other end of the elastic stop 1 abuts against the radial outer surface of the paste roller 3. The upper part of the elastic stop 1 contacts or abuts against the axial end face of the paste roller 3, and the lower part contacts or abuts against the radial outer surface of the paste roller 3 or glue roller. The bracket 5 is used to install the fixed plate 2 and the elastic stop 1. The bracket 5 can be installed on the labeling machine; its specific structure and installation position can be set according to actual conditions, as long as it can stably install the fixed plate 2 and the elastic stop 1.
[0021] This solution provides a stop device for the paste roller of a labeling machine. By setting a nylon stop with a notch 11, the second surface 13 matches the upper end of the paste roller 3 to form a horizontal block, and the vertical arc side matches the outer arc surface of the roller to form a vertical block. The two surfaces at the notch 11 form a two-stage blocking structure. The elastic stop 1 is made of nylon, which is corrosion-resistant and oil-resistant. The shape and size of the end of the elastic stop 1 connected to the paste roller 3 are adapted to the paste roller 3, ensuring that it does not damage the roller while tightly adhering to the roller surface and effectively preventing glue or paste from flowing upwards. This solves the problem of wear and tear caused by defects such as glue leakage at the upper end of the paste roller scraper in existing technologies. The use of this stop device for the paste roller of a labeling machine avoids maintenance downtime and frequent cleaning downtime caused by glue or paste flowing upwards, thus improving production efficiency.
[0022] Specifically, the elastic stop 1 has a stepped notch 11 at one end near the paste roller 3. The notch 11 includes a first surface 12 and a second surface 13 connected sequentially from bottom to top in an L-shape. The first surface 12 is vertically arranged and contacts or abuts against the radial outer surface of the paste roller 3, while the second surface 13 is horizontally arranged and contacts or abuts against the axial end face of the paste roller 3. The fixing plate 2 has the same or similar shape as the elastic stop 1. The fixing plate 2 forms a block, restricting the displacement of the elastic stop 1. The left or right position of the fixing plate 2 relative to the elastic stop 1 can be selected according to the counterclockwise or clockwise rotation direction of the cylinder 31.
[0023] Specifically, the first surface 12 is an arc surface, which is in contact with the surface of the paste roller 3 or glue roller body 31. The first surface 12 is an arc surface that matches the outer arc surface of the roller, preventing glue or paste leakage. This reduces the dynamic scraping pressure of the scraper blade on the paste roller 3 by 50% compared to the traditional scraping pressure, and extends the scraper life from 1440 hours to 5760 hours. The structure and position of the scraper can refer to conventional technology. The first surface 12 and the second surface 13 form a stepped two-stage barrier structure, which can effectively block 99% of the paste, preventing paste from flowing upwards. This effectively achieves zero paste contact between the copper sleeve connected to the paste roller 3 and the bearing. In addition, the deviation of the traditional stop block structure after collision is ≥0.3mm. In this solution, the elastic stop block 1 is fixed to the fixed plate 2 by multiple bolts or screws. The position deviation rate of the elastic stop block 1 after collision is ≤0.01, which can prevent paste leakage caused by displacement at the upper end of the roller. The use of this device avoids maintenance downtime and frequent cleaning downtime caused by glue overflow, thus improving production efficiency.
[0024] Specifically, the stop device for the paste roller of the labeling machine in this solution also includes at least two spaced-apart fixing members 4. One end of each fixing member 4 passes through the fixing plate 2, the elastic stop 1 and the bracket 5 in sequence and is detachably fixedly connected. The two fixing members 4 are spaced apart in the vertical direction from top to bottom. The fixing members 4 are preferably bolts. The elastic stop 1 is bolted to the fixing plate 2. The connection structure between the elastic stop 1 and the fixing plate 2 is bolted to the bracket 5.
[0025] Specifically, the elastic stop 1 includes a first block 14 and a second block 15 fixedly connected to each other in an L-shape. The elastic stop 1 is a one-piece structure. The first block 14 is located below the second block 15. The first block 14 is vertically arranged, and the second block 15 is horizontally arranged. The first surface 12 is located on the side of the first block 14 near the paste roller 3, and the second surface 13 is located on the lower end surface of the second block 15. (Refer to...) Figure 3 The horizontal thickness of the part of the elastic block 1 located between the support 5 and the paste roller 3 can be set to be greater than the horizontal thickness of other parts of the elastic block 1. In addition, the shape of this part of the elastic block 1 on the side away from the fixed plate 2 can be set according to the actual situation.
[0026] Specifically, the paste roller 3, also known as the glue roller, includes a shaft end plate 33, a roller 32, and a cylinder 31 that are connected sequentially from top to bottom and coaxially arranged. The diameter of the roller 32 is smaller than the diameter of the cylinder 31, and the diameter of the shaft end plate 33 is larger than the diameter of the roller 32. The second surface 13 contacts or abuts against the upper end surface of the cylinder 31, and the upper end surface of the second block 15 is located below the lower surface of the shaft end plate 33. The first surface 12 is in contact with the surface of the cylinder 31, and there is a gap between the side of the second block 15 near the paste roller 3 and the roller 32.
[0027] Specifically, the fixing plate 2 includes a first plate 23 and a second plate 24 fixedly connected to each other in an L-shape. The fixing plate 2 is an integral structure. The first plate 23 is correspondingly arranged with the first block 14 and its upper and lower ends are flush. The second plate 24 is correspondingly arranged with the second block 15 and its upper and lower ends are flush. That is, the upper end face of the fixing plate 2 is flush with the upper end face of the elastic stop 1 in the horizontal direction, and the lower end face is flush with the lower end face of the elastic stop 1 in the horizontal direction. There is a gap between the first block 14 and the cylinder 31, and there is a gap between the second block 15 and the roller 32 to avoid scratching the paste roller 3. The horizontal length of the second plate 24 can be greater than the length of the second block 15. The side of the second plate 24 near the roller 32 can protrude from the second block 15. That is, the gap between the second plate 24 and the roller 32 is smaller than the gap between the second block 15 and the roller 32, which can provide a certain degree of protection for the second block 15 of the elastic stop 1.
[0028] The entire structure of the stop device for the paste roller of the labeling machine in this solution is made of corrosion-resistant materials. The elastic stop 1 is made of nylon, and the fixing plate 2 is made of copper plate. The elastic stop 1 is installed in the slot on the fixing plate 2 by fixing screws. The gradual change in size of the nylon stop, which is wider at the top and narrower at the bottom, combined with the arc design of the first surface 12, can effectively guide the glue backflow and prevent glue from flowing upward and leaking laterally. The fixing plate 2 can be made of brass stamping with a thickness of at least 3mm to ensure its strength and stability, and the surface roughness Ra≦3. The ductility or elasticity of the elastic stop 1 can protect the roller from damage. The fixing plate 2 can be designed with multiple first mounting holes 21 for fixing the nylon stop with fixing screws. The first mounting holes 21 can be set as vertical elongated holes, with two first mounting holes 21 spaced apart from top to bottom. The fixing plate 2 can also be provided with multiple second mounting holes 22 and fixed to the bracket 5 with screws. The holes on the elastic stop 1 are set to correspond to the holes on the fixing plate 2. The holes on the bracket 5 corresponding to the second mounting holes 22 on the fixing plate 2 are adjustable mounting holes. The adjustable mounting holes can be elongated or other hole structures that allow for fine adjustment of the position of the fixing plate 2 on the bracket 5, so that the installation position of the fixing plate 2 and its connection structure with the elastic stop 1 can be finely adjusted in the horizontal or vertical direction, so that the optimal installation position between the fixing plate 2 and the roller can be achieved.
[0029] The first surface 12 acts as the first-level barrier, directly facing the gaps on the sides of the paste roller 3 and any glue that may flow upwards. By tightly adhering to the roller surface, it prevents the glue from spreading upwards. The second surface 13 provides a secondary barrier against the upward-flowing glue, forming two lines of defense that significantly improve the effectiveness of preventing glue from flowing upwards. Furthermore, the selection of corrosion-resistant and oil-resistant materials ensures the long service life of the device in glue-rich environments and does not adversely affect the glue.
[0030] In one embodiment, the elastic block 1 has a positioning protrusion 16 protruding on the side near the bracket 5, and the bracket 5 has a positioning groove into which the positioning protrusion 16 can be inserted.
[0031] In another embodiment, the bracket 5 has a slot on the side near the paste roller 3, and the elastic stop 1 and the end of the fixing plate 2 away from the paste roller 3 are embedded in the slot. The slot includes a first opening and a second opening that are interconnected. The first opening and the second opening are respectively located on two interconnected and perpendicular vertical sides of the fixing plate 2, with the first opening facing the paste roller 3. The side of the elastic stop 1 away from the fixing plate 2 abuts against the inner wall of the slot.
[0032] Other aspects of the stop device for the paste roller of a labeling machine described in this utility model are referred to in the prior art and will not be repeated here.
[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A stopper device for the paste roller of a labeling machine, characterized in that: The device includes a bracket and a fixed plate and an elastic stop block mounted on the bracket. The fixed plate and the elastic stop block are parallel to each other in the vertical direction and are detachably and tightly connected. The fixed plate is located on the side of the elastic stop block away from the bracket. One end of both the fixed plate and the elastic stop block in the horizontal direction is detachably fixed to the bracket. The other end of the elastic stop block is in contact with the radial outer surface of the paste roller. The upper part of the elastic stop block contacts or abuts against the axial end face of the paste roller, and the lower part contacts or abuts against the radial outer surface of the paste roller.
2. The stop device for the paste roller of a labeling machine according to claim 1, characterized in that: The elastic stop has a stepped notch at one end near the paste roller. The notch includes a first surface and a second surface connected in an L-shape from bottom to top. The first surface is vertically arranged and contacts or abuts against the radial outer surface of the paste roller. The second surface is horizontally arranged and contacts or abuts against the axial end face of the paste roller. The fixing plate has the same or similar shape as the elastic stop.
3. The stop device for the paste roller of a labeling machine according to claim 2, characterized in that: The first surface is an arc surface.
4. The stop device for the paste roller of a labeling machine according to claim 3, characterized in that: It also includes at least two spaced-apart fasteners, one end of each fastener passing through the fixing plate and the elastic stop in sequence and being detachably and fixedly connected to the bracket.
5. The stop device for the paste roller of a labeling machine according to claim 4, characterized in that: The elastic stop includes a first block and a second block that are fixedly connected to each other in an L-shape. The first block is located below the second block. The first block is vertically arranged, and the second block is horizontally arranged. The first surface is located on the side of the first block near the paste roller, and the second surface is located on the lower end surface of the second block.
6. The stop device for the paste roller of a labeling machine according to claim 5, characterized in that: The paste roller includes a shaft end plate, a roller, and a cylinder arranged coaxially from top to bottom. The diameter of the roller is smaller than the diameter of the cylinder, and the diameter of the shaft end plate is larger than the diameter of the roller. The second surface contacts or abuts against the upper end surface of the cylinder, and the upper end surface of the second block is located below the lower surface of the shaft end plate. The first surface is in contact with the surface of the cylinder. The second block has a gap between the side near the paste roller and the roller.
7. The stop device for the paste roller of a labeling machine according to claim 6, characterized in that: The fixing plate includes a first plate and a second plate that are fixedly connected to each other in an L-shape. The first plate is correspondingly arranged with the first block and its upper and lower ends are flush. The second plate is correspondingly arranged with the second block and its upper and lower ends are flush. There is a gap between the first block and the cylinder; there is a gap between the second block and the roller.
8. The stop device for the paste roller of a labeling machine according to claim 7, characterized in that: The elastic stop has a positioning protrusion on the side near the bracket, and the bracket has a positioning groove into which the positioning protrusion can be inserted.
9. The stop device for the paste roller of a labeling machine according to claim 7, characterized in that: The bracket has a slot on the side near the paste roller, and the elastic block and the fixed plate are embedded in the slot at the end away from the paste roller.
10. The stop device for the paste roller of a labeling machine according to claim 9, characterized in that: The slot includes a first opening and a second opening that are interconnected. The first opening and the second opening are respectively located on two interconnected and perpendicular vertical sides of the fixing plate. The first opening faces the paste roller. The elastic stop is bolted to the fixing plate.