Automatic following rolling mechanism

Abstract

The utility model provides an automatic following rolling mechanism. A placing area for placing a cylindrical product is formed among a driving roller, a first driven roller and two second driven rollers; the two second driven rollers are driven by the second driver to press and abut against the cylindrical product, so that the cylindrical product is driven by the driving roller to roll; due to the arrangement of the elastic mechanism, the second driven roller elastically abuts against the upper circumferential face of the cylindrical product in the direction perpendicular to the axis of the cylindrical product, and secondary follow-up is achieved; for a cylindrical product with poor cylindricity or an irregular arc, the arrangement of the elastic mechanism enables the second driven roller to be always attached to and abut against the surface of the cylindrical product so as to guarantee that the cylindrical product can be effectively driven by the driving roller, constant-speed or intermittent rolling is achieved, it is guaranteed that the cylindrical product does not jump, and the product quality is improved. And a coating layer on the surface of the cylindrical product is more uniform.

Description

Technical Field

[0001] This utility model relates to the field of coating device technology, and more specifically, to an automatic following rolling mechanism. Background Technology

[0002] For cylindrical products, when performing certain processing steps on their outer surface, it is often necessary to roll the product to meet production process requirements. Existing mechanisms for rolling products typically use a drive roller and a driven roller to press the product against it, thus driving the product to roll. However, since the driven roller is usually a single-stage follower mechanism—meaning it is only driven by a driving component to press against the product surface—it is only suitable for products with high cylindricity. For cylindrical products with poor cylindricity or irregular arcs, a single-stage follower mechanism cannot guarantee a tight contact between the product and the roller, thus failing to ensure uniform or intermittent rolling and preventing product bouncing.

[0003] Taking coating the surface of cylindrical products as an example, it is impossible to guarantee that the product rolls at a uniform speed or intermittently, and it is impossible to guarantee that the product will not jump. This will cause the coating layer on the surface of cylindrical products to be uneven, resulting in a high defect rate. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an automatic following rolling mechanism to solve the above problems.

[0005] The present invention adopts the following solution:

[0006] This application provides an automatic following rolling mechanism, including a base, an active roller and a first driven roller disposed on the base, two second driven rollers disposed above the active roller and the first driven roller, a first drive for driving the active roller to rotate, and a second drive for driving the two second driven rollers to move up and down to approach or move away from the active roller and the first driven roller, and further including an elastic top block and an elastic mechanism connected to the second driven rollers;

[0007] A placement area for placing cylindrical products is formed between the driving roller, the first driven roller, and the two second driven rollers, and the placement area is inclined so that the cylindrical products placed in the placement area are in a state where one end is higher than the other along their axial direction; the elastic top block axially elastically abuts against the end face of the lower end of the cylindrical products; under the action of the elastic mechanism, the two second driven rollers elastically abut against the circumferential surface of the cylindrical products in a direction perpendicular to the axis of the cylindrical products.

[0008] Furthermore, the elastic top block includes a first sliding block slidably disposed on the base along the axial direction, a top block acting on the end face of the cylindrical product and connected to the sliding block, a first fixing block fixed on the base, and a first elastic member axially connected between the first sliding block and the first fixing block; the first elastic member is used to move the top block closer to the end face of the lower end of the cylindrical product.

[0009] Furthermore, a waist-shaped groove is provided at the connection between the top block and the sliding block.

[0010] Furthermore, it also includes a limiting rod; one end of the limiting rod passes through a through hole on the first fixing block and is connected to the first sliding block, and the other end is provided with the limiting part.

[0011] Furthermore, the top block is a conductive copper block.

[0012] Furthermore, the elastic mechanism includes a second fixed block connected to the bracket, a guide rail is provided on the fixed block in a direction perpendicular to the axial direction of the cylindrical product, a second sliding block is slidably provided on the guide rail, and limit blocks are provided at both ends of the guide rail, wherein a second elastic element is provided between the limit block and the second sliding block; the second driven roller is connected to the second sliding block.

[0013] Furthermore, the second sliding block is provided with an upper opening placement groove, and the upper limit block is provided with a through hole groove opposite to the placement groove; the second elastic element is disposed in the placement groove and the through hole groove; and an adjusting rod is provided at the upper end of the through hole groove.

[0014] Furthermore, the driving roller includes a driving shaft connected to the first drive transmission and a polyurethane roller disposed on the driving shaft; the driven roller includes a driven shaft and a polyurethane roller disposed on the driven shaft.

[0015] Furthermore, it also includes a third drive, which is used to move the base back and forth.

[0016] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0017] This invention provides an automatic following rolling mechanism, which forms a placement area for a cylindrical product between the driving roller, the first driven roller, and two second driven rollers. Driven by a second drive, the two second driven rollers press down against the cylindrical product, causing it to roll under the drive of the driving roller. An elastic mechanism allows the second driven rollers to elastically abut against the circumferential surface of the cylindrical product in a direction perpendicular to its axis, achieving two-stage following. This mechanism is suitable for cylindrical products with poor cylindricity or irregular arcs. The elastic mechanism ensures that the second driven roller remains in constant contact with the surface of the cylindrical product, guaranteeing that the cylindrical product is effectively driven by the driving roller to achieve uniform or intermittent rolling, preventing the cylindrical product from jumping and resulting in a more uniform coating layer on the surface of the cylindrical product. Simultaneously, the inclined placement area allows excess paint to be guided down during the outer surface coating of the cylindrical product, preventing contamination of the worktable. Furthermore, the elastic top block maintains constant contact with the end face of the cylindrical product, ensuring better electrical contact and guaranteeing the coating effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an automatic following rolling mechanism according to an embodiment of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of an automatic following rolling mechanism according to an embodiment of the present invention. Figure 2 ;

[0021] Figure 3 This is a partial assembly structure diagram of the second driven roller of an automatic following rolling mechanism according to an embodiment of this utility model;

[0022] Figure 4 yes Figure 3 A schematic diagram of the decomposed structure;

[0023] Figure 5 This is a partial assembly structure diagram of the base of an automatic following rolling mechanism according to an embodiment of this utility model;

[0024] Figure 6 yes Figure 5 Partially exploded structure diagram;

[0025] Figure 7 This is an exploded structural diagram of the elastic top block portion of an automatic following rolling mechanism according to an embodiment of the present invention;

[0026] Icons: Base 1, Driven Roller 2, First Driven Roller 3, Second Driven Roller 4, First Drive 5, Second Drive 6, Elastic Top Block 7, Elastic Mechanism 8, Cylindrical Product 9, Drive Shaft 10, First Polyurethane Roller 11, First Driven Shaft 12, Second Polyurethane Roller 13, Second Driven Shaft 14, Third Polyurethane Roller 15, First Support 16, Vertical Slide Rail 17, Second Support 18, Second Fixing Block 19, First Guide Rail 20, Second Sliding Block 21, Upper Limit Block 22, Lower Limit Block 23, Second Elastic Component 24, Connector 25, Seat 26, First Placement Slot 27, Through Hole Slot 28, Adjusting Rod 29, Second Guide Rail 30, First Sliding Block 31, Top Block 32, First Fixing Block 33, First Elastic Component 34, Second Placement Slot 35, Limiting Post 36, Waist-shaped Slot 37, Limiting Rod 38, Third Drive 39, Third Support 40. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Example

[0029] Combination Figures 1 to 7 As shown, this embodiment provides an automatic following rolling mechanism, including a base 1, an active roller 2 and a first driven roller 3 disposed on the base 1, two second driven rollers 4 disposed above the active roller 2 and the first driven roller 3, a first drive 5 for driving the active roller 2 to rotate, and a second drive 6 for driving the two second driven rollers 4 to move up and down to approach or move away from the active roller 2 and the first driven roller 3, and also includes an elastic top block 7 and an elastic mechanism 8 connected to the second driven rollers 4;

[0030] The active roller 2, the first driven roller 3, and the two second driven rollers 4 form a placement area for placing the cylindrical product 9, and the placement area is inclined so that the cylindrical product 9 placed in the placement area is in a state where one end is higher than the other end along its axial direction; the elastic top block 7 axially elastically abuts against the end face of the lower end of the cylindrical product 9; under the action of the elastic mechanism 8, the two second driven rollers 4 elastically abut against the circumferential surface of the cylindrical product 9 in a direction perpendicular to the axis of the cylindrical product 9.

[0031] Specifically, in this embodiment, the coating process on the outer edge of the cylindrical product 9 is taken as an example. Figure 1 and Figure 2 As shown, the base 1 is equipped with the drive roller 2, which includes a drive shaft 10 rotatably mounted on the base 1 and a first polyurethane roller 11 mounted on the drive shaft 10. A first drive 5 is provided on the base 1, which may be a motor connected to one end of the drive shaft 10 via a synchronous belt to drive the drive shaft 10 to rotate. A first driven roller 3 is provided opposite to the drive roller 2. Two second driven rollers 4 are provided above the drive roller 2 and the first driven roller 3. The first driven roller 3 includes a first driven shaft rotatably connected to the base 1 and a second polyurethane roller 13 mounted on the first driven shaft 12. A placement area for placing the cylindrical product 9 is formed between the drive roller 2, the first driven roller 3, and the two second driven rollers 4. The second drive 6 is used to drive the two second driven rollers 4 to move vertically, moving them closer to or away from the cylindrical product 9 placed in the placement area. The second drive 6 drives the second driven roller 4 to an appropriate position so that the polyurethane roller abuts against the cylindrical product 9 to form a first-level follower, that is, the second driven roller 4 rotates in a fixed position.

[0032] In this embodiment, a first bracket 16 is provided along the vertical direction, and a vertical slide rail 17 is provided on the first bracket 16. Figure 1 , Figure 3 and Figure 4As shown, the elastic mechanism 8 includes a second bracket 18 slidably connected to the vertical slide rail 17 and arranged horizontally, and a second fixing block 19 connected to the second bracket 18 and arranged in parallel. A first guide rail 20 is arranged on the fixing block in a direction perpendicular to the axial direction of the cylindrical product 9. A second sliding block 21 is slidably arranged on the first guide rail 20. An upper limit block 22 and a lower limit block 23 are arranged at both ends of the first guide rail 20. A second elastic element 24 is arranged between the upper limit block 22 and the second sliding block 21. The second driven roller 4 includes a second driven shaft 14 rotatably connected to the base 26, and a third polyurethane roller 15 arranged on the second driven shaft 14. The base 26 is connected to the second sliding block 21 via an L-shaped connector 25. The second drive 6 can be a cylinder, hydraulic cylinder, or lead screw, etc., used to drive the second bracket 18 to move on the vertical slide rail 17.

[0033] The second drive 6 is used to drive the second driven roller 4 to adhere to the outer surface of the cylindrical product 9. Then, under the force of the second elastic element 24, the second driven roller 4 has a downward pressing tendency in the direction perpendicular to the axis, so that the second driven roller 4 elastically abuts against the circumferential surface of the cylindrical product 9 in the direction perpendicular to the axis of the cylindrical product 9, realizing two-stage follow-up. That is, for cylindrical products 9 with poor cylindricity or irregular arcs, the setting of the elastic mechanism 8 enables the second driven roller 4 to always adhere to and abut against the surface of the cylindrical product 9, so as to ensure that the cylindrical product 9 can be effectively driven by the drive roller 2 to achieve uniform or intermittent rolling, ensuring that the cylindrical product 9 does not jump, and making the coating layer on the surface of the cylindrical product more uniform.

[0034] Furthermore, the second sliding block 21 is provided with a first placement groove 27 with an upper opening, and the upper limit block 22 is provided with a through hole groove 28 opposite to the first placement groove 27; the second elastic element 24 is disposed in the first placement groove 27 and the through hole groove 28; an adjusting rod 29 is provided at the upper end of the through hole groove 28. The adjusting rod 29 may be screwed onto the through hole groove 28 to adjust the depth of one end of it placed in the through hole groove 28, thereby adjusting the downward pressure of the second driven roller 4; so as to better suit the cylindrical products 9 of different specifications.

[0035] In this implementation, such as Figures 5 to 7As shown, the elastic top block 7 includes a first sliding block 31 slidably disposed on the second guide rail 30 on the base 1 along the axial direction, a top block 32 acting on the end face of the cylindrical product 9 and connected to the sliding block, a first fixing block 33 fixed on the base 1, and a first elastic member 34 axially connected between the first sliding block 31 and the first fixing block 33; the end face of the first sliding block 31 is provided with an open second placement groove 35, and the first elastic member 34 is a spring mounted on the second placement groove 35; the first fixing block 33 is provided with a limit post 36, which is inserted into the spring. Under the force of the first elastic member 34, the top block 32 dynamically approaches the end face of the lower end of the cylindrical product 9, so that the top block 32 always abuts against the end face of the lower end of the cylindrical product 9.

[0036] The inclined placement area allows excess paint to be guided down during the coating of the cylindrical product 9, preventing contamination of the worktable. The elastic top block 7 maintains constant contact with the end face of the cylindrical product, ensuring better electrical contact and guaranteeing the coating effect. Taking the coating of a silver layer on the surface of the cylindrical product 9 as an example, the top block 32 is a conductive copper block forming one electrode. An electrical circuit is formed after the coating roller, passing through the other electrode, contacts the surface of the cylindrical product 9.

[0037] Preferably, a waist-shaped groove 37 is provided at the connection between the top block 32 and the sliding block, and the connection is made by bolts, so as to realize the radial movement adjustment of the top block 32 along the cylindrical product 9 to accommodate cylindrical products 9 of different sizes.

[0038] Preferably, it also includes a limiting rod 38; one end of the limiting rod 38 passes through the through hole on the first fixing block 33 and is connected to the first sliding block 31, and the other end is provided with the limiting part to prevent the first sliding block 31 from falling off the second guide rail 30.

[0039] Preferably, such as Figure 1 As shown, it also includes a third drive 39, which is used to drive the base 1 to move back and forth. Specifically, the automatic following rolling mechanism is provided with a third support 40 in the horizontal direction, and a horizontal slide rail is formed on the third support 40. A third slider is slidably disposed on the horizontal slide rail. The base 1 is disposed on the third slider. The third drive 39 drives the third slider to move, thereby driving the base 1 to move back and forth, so as to facilitate the loading and unloading of the cylindrical product 9.

[0040] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are protected by this utility model.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 this utility model.

[0042] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. An automatic following rolling mechanism, comprising a base, a driving roller and a first driven roller disposed on the base, two second driven rollers disposed above the driving roller and the first driven roller, a first drive for driving the driving roller to rotate, and a second drive for driving the two second driven rollers to move up and down to approach or move away from the driving roller and the first driven roller, characterized in that, The elastic top block and the elastic mechanism connected to the second driven roller are further included. The placement area for placing the cylindrical product is formed between the driving roller, the first driven roller and the two second driven rollers, and the placement area is arranged in an inclined manner so that the cylindrical product placed on the placement area is in a state of high at one end and low at the other end along the axial direction of the cylindrical product; the elastic top block is axially elastically abutted against the end surface of the low end of the cylindrical product; and the two second driven rollers are elastically abutted against the upper circumferential surface of the cylindrical product in a direction perpendicular to the axial direction of the cylindrical product under the action of the elastic mechanism.

2. The automatic follow-me rolling mechanism of claim 1, wherein, The elastic top block includes a first sliding block slidably arranged on the base along the axial direction, a top block acting on the end surface of the cylindrical product and connected to the sliding block, a first fixed block fixedly arranged on the base, and a first elastic member axially connected between the first sliding block and the first fixed block; the first elastic member is used to make the top block close to the end surface of the low end of the cylindrical product.

3. The automatic follow-me rolling mechanism of claim 2, wherein, A waist-shaped groove is arranged at the connection between the top block and the sliding block.

4. The automatic follow-me rolling mechanism of claim 2, wherein, A limiting rod is further included; one end of the limiting rod passes through the through hole on the first fixed block and is connected to the base, and the other end is provided with a limiting portion.

5. The automatic follow-me rolling mechanism of claim 2, wherein, The top block is a conductive copper block.

6. The automatic follow-me rolling mechanism of claim 1, wherein, The elastic mechanism includes a second fixed block connected to a support, a guide rail arranged on the fixed block in a direction perpendicular to the axial direction of the cylindrical product, a second sliding block slidably arranged on the guide rail, limiting blocks arranged at both ends of the guide rail, and a second elastic member arranged between the upper limiting block and the second sliding block; the second driven roller is connected to the second sliding block.

7. The automatic follow-me rolling mechanism of claim 6, wherein, The second sliding block is provided with an open-top placement groove, the upper limiting block is provided with a through hole groove opposite to the placement groove; the second elastic member is arranged in the placement groove and the through hole groove; and an adjusting rod is arranged at the upper end of the through hole groove.

8. The automatic follow-me rolling mechanism of claim 1, wherein, The driving roller includes a driving shaft connected to the first driving transmission, and a polyurethane roller arranged on the driving shaft; and the driven roller includes a driven shaft, and a polyurethane roller arranged on the driven shaft.

9. The self-following rolling mechanism according to any one of claims 1-8, wherein, A third driving device is further included for driving the base to move forward and backward. The elastic top block and the elastic mechanism connected to the second driven roller are further included.

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