Connecting structure for plate roller electroplating

Abstract

The utility model relates to the technical field of plate roller electroplating, and provides a connecting structure for plate roller electroplating, the connecting structure comprises a conductive assembly, the conductive assembly comprises a base, a mounting shaft and a conductive piece, the base is used for being connected with an electroplating bath, the mounting shaft is connected to the base, and the mounting shaft is used for sleeving an insertion cavity of a plate roller; a plurality of sliding cavities are formed in the peripheral side of the mounting shaft, extend in the radial direction of the mounting shaft and are uniformly distributed in the peripheral side of the mounting shaft; the plurality of conductive parts are arranged in the sliding cavities, and the plurality of conductive parts are in one-to-one correspondence with the plurality of sliding cavities; a conductive spring is arranged in the sliding cavity, and when the conductive part abuts against the cavity wall of the insertion cavity, the conductive spring is in a compressed state; and the two conductive assemblies are used for being connected with the two ends of the plate roller correspondingly. The printing roller has the advantages that good connection and contact between the printing roller and the electric cable can be established, and meanwhile the cost problem is considered.

Description

Technical Field

[0001] This application relates to the field of printing roller electroplating technology, and in particular to a connection structure for printing roller electroplating. Background Technology

[0002] Currently, in the electroplating process of printing rollers, in order to ensure a good connection between the printing roller as the cathode and the negative terminal of the DC power supply, thereby achieving a uniform distribution of the coating, a special connection device is usually designed between the printing roller and the electroplating tank. This connection device not only plays a crucial role in improving the electroplating quality, but also directly affects the working efficiency of the entire production line and the quality of the final product.

[0003] Existing connection device configurations mainly include the following: 1. Direct welding: The cable is directly welded to both ends of the printing roller. Although simple and quick, the thermal effect can easily lead to localized overheating, deformation, or even damage to the roller surface, which is not conducive to long-term stable operation. 2. Bolt fastening: The metal frame is fixed to the end face of the printing roller with bolts to complete the electrical connection. This method is relatively flexible and reliable, but frequent disassembly may cause poor contact. 3. Quick-plug structure: The operation process is simple and can ensure sufficient conductivity, but the cost is high and the application range is limited.

[0004] Therefore, a connection structure is needed that can establish a good connection and contact between the printing roller and the power cable while also taking cost into consideration. Utility Model Content

[0005] In order to establish a good connection and contact between the printing roller and the cable while taking cost into consideration, this application provides a connection structure for printing roller electroplating.

[0006] The connection structure for plate roller electroplating provided in this application adopts the following technical solution:

[0007] A connection structure for electroplating a printing roller includes a conductive assembly. The conductive assembly includes a base, a mounting shaft, and conductive elements. The base is connected to the electroplating tank, and the mounting shaft is connected to the base and is used for fitting the insertion cavity of the printing roller. Multiple sliding cavities are formed on the circumference of the mounting shaft, extending radially along the shaft and evenly distributed around its periphery. Multiple conductive elements are provided and installed in the sliding cavities, with each element corresponding to one of the sliding cavities. A conductive spring is provided in each sliding cavity; when the conductive element abuts against the cavity wall of the insertion cavity, the conductive spring is compressed. Two sets of conductive assemblies are provided, each set connecting to one end of the printing roller.

[0008] By adopting the above technical solution, when performing electroplating on the printing roller, both ends of the printing roller are inserted into the mounting shaft through the insertion cavity, so that the conductive component abuts against the cavity wall under the action of the conductive spring. Then, the power switch is turned on, and the current is conducted to the printing roller through the conductive spring and the conductive component. Since the printing roller is precisely positioned in the center and the resistance value is greatly reduced through multi-point contact, it can receive the current supply very evenly, thereby obtaining ideal coating coverage in the subsequent electroplating process. At the same time, the installation is simple and the cost is low.

[0009] Optionally, the conductive element has a spherical structure and is rotatably connected to the mounting shaft.

[0010] By adopting the above technical solution, the conductive component with a spherical structure that is rotatably connected forms a guide during the insertion of the mounting shaft into the insertion cavity. On the one hand, this makes the printing roller connect to the mounting shaft more smoothly, and on the other hand, it makes the friction between the printing roller and the conductive component rolling friction, reducing damage to the conductive component.

[0011] Optionally, a guide portion is provided at the end of the mounting shaft away from the base, and the guide portion is tapered.

[0012] By adopting the above technical solution, a guide is formed during the insertion of the mounting shaft into the insertion cavity, thereby improving the smoothness and efficiency of the printing roller installation.

[0013] Optionally, a limiting protrusion is provided around the periphery of the guide portion, and the outer wall of the limiting protrusion is used to abut against the cavity wall of the insertion cavity.

[0014] By adopting the above technical solution, the limiting protrusion ring forms a straight guide for the printing roller, so that the printing roller will not be skewed during the movement. On the one hand, it ensures the smooth movement of the printing roller relative to the mounting shaft, and on the other hand, it further reduces the damage to the conductive parts.

[0015] Optionally, a connecting rod is also included, one end of which is connected to one of the bases and the other end is detachably connected to the other base.

[0016] By adopting the above technical solution, a connection is established between the two sets of conductive components using a connecting rod, thereby improving the installation stability of the printing roller during electroplating.

[0017] Optionally, the connecting rod has an external thread on its circumference, and the base, which is detachably connected to the connecting rod, has a through hole for the connecting rod to pass through. The connecting rod is threadedly connected to a limit nut through the external thread.

[0018] By adopting the above technical solution, when connecting another set of conductive components to the connecting rod, the connecting rod is first passed through the through hole, and then the limiting nut is screwed onto the connecting rod. During the screwing process, the base moves with the fiber nut until it abuts against the end of the printing roller. This limits the printing roller while making the connection structure applicable to printing rollers of various sizes, thus improving the flexibility of the connection structure.

[0019] Optionally, multiple connecting rods are provided, and the multiple connecting rods are arranged at intervals around the mounting shaft, with multiple limiting nuts corresponding to the multiple connecting rods.

[0020] By adopting the above technical solution and setting multiple connecting rods, the connection stability between the two sets of conductive components is improved.

[0021] Optionally, multiple limiting nuts are rotatably connected to the surface of the base away from the printing roller, and multiple first gears are provided on the periphery of the limiting nuts; the base, which is detachably connected to the connecting rod, is rotatably connected to a knob on the surface away from the printing roller, and multiple second gears are provided on the periphery of the knob, and the second gears of the knob mesh with the first gears corresponding to the multiple limiting nuts.

[0022] By adopting the above technical solution, when it is necessary to tighten the limit nut, the knob is turned, and the knob drives multiple limit nuts to rotate synchronously through the meshing of the first gear and the second gear, thereby improving the convenience of operation.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting an installation shaft and setting multiple elastically movable conductive parts on the installation shaft, when the installation shaft is inserted into the insertion cavity, the multiple conductive parts abut against the inner wall of the insertion cavity, so that the printing roller can receive the current supply evenly, thereby obtaining ideal coating coverage in the subsequent processing.

[0025] 2. By setting the conductive component as a spherical structure and providing a tapered guide at the end of the mounting shaft away from the base, the printing roller is guided during installation, facilitating smooth installation of the printing roller;

[0026] 3. By setting limit nuts and knobs, turning the knob drives multiple limit nuts to move synchronously, thereby driving the base to move. On the one hand, this makes the connection structure suitable for printing rollers of various lengths, and on the other hand, it also limits the printing rollers, improving the stability of the printing rollers during electroplating. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 2 It is a schematic diagram used to show the structure of the mounting shaft being inserted into the insertion cavity.

[0029] Figure 3 yes Figure 2 Enlarged diagram of part A.

[0030] Figure 4 This is a schematic diagram illustrating the interlocking structure of the knob and the limit nut.

[0031] Explanation of reference numerals in the attached drawings: 1. Conductive component; 11. Base; 111. Through hole; 12. Mounting shaft; 121. Sliding cavity; 122. Conductive spring; 123. Guide part; 124. Limiting protrusion ring; 125. Lightweight cavity; 13. Conductive component; 2. Connecting rod; 21. External thread; 22. Limiting nut; 221. First gear; 3. Knob; 31. Second gear; 4. Printing roller; 41. Insertion cavity. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0033] This application discloses a connection structure for electroplating a printing roller 4, wherein both ends of the printing roller 4 are provided with insertion cavities 41.

[0034] Reference Figure 1 and Figure 2 A connection structure for electroplating a printing roller 4 includes a conductive component 1 and a connecting rod 2. The conductive component 1 includes a base 11, a mounting shaft 12 and a conductive element 13. The base 11 is used to connect to the electroplating tank, and the mounting shaft 12 is connected to the middle position of the base 11. The mounting shaft 12 is used for the insertion cavity 41 of the printing roller 4 to be fitted.

[0035] Reference Figure 2 and Figure 3 Multiple sliding cavities 121 are provided on the periphery of the mounting shaft 12. The sliding cavities 121 extend radially along the mounting shaft 12 and are evenly distributed on the periphery of the mounting shaft 12. Multiple conductive elements 13 are provided, and some of the conductive elements 13 are located in the sliding cavities 121 and can slide along the sliding cavities 121. Each conductive element 13 corresponds to one of the multiple sliding cavities 121.

[0036] A conductive spring 122 is installed in the sliding cavity 121. One end of the conductive spring 122 abuts against the bottom of the sliding cavity 121, and the other end abuts against the conductive element 13. When the conductive element 13 abuts against the cavity wall of the insertion cavity 41, the conductive spring 122 is in a compressed state. Two sets of conductive components 1 are provided, and the two sets of conductive components 1 are respectively used to connect to both ends of the printing roller 4. The conductive spring 122 is used to receive external current. When performing electroplating on the printing roller 4, both ends of the printing roller 4 are inserted into the mounting shaft 12 through the insertion cavity 41, so that the conductive element 13 abuts against the cavity wall of the insertion cavity 41 under the action of the conductive spring 122; then the power switch is turned on, and the current is conducted to the printing roller 4 through the conductive spring 122 and the conductive element 13. Since the printing roller 4 is precisely positioned in the center and the resistance value is greatly reduced through multi-point contact, it can receive the current supply very evenly, thereby obtaining ideal coating coverage in the subsequent electroplating process. At the same time, the installation is simple and the cost is low.

[0037] It is understandable that a conductive sheet (not shown in the figure) should be provided at the bottom of the sliding cavity 121. The conductive sheet is connected to the external current through a wire, and the wire runs from the inside of the base 11.

[0038] The conductive component 1 is provided in two sets, and the two sets of conductive components 1 are respectively used to connect to the two ends of the printing roller 4.

[0039] One end of the connecting rod 2 is fixedly connected to one of the bases 11, and the other end is detachably connected to another base 11, thereby using the connecting rod 2 to fix the two conductive components 1 relative to each other. Multiple connecting rods 2 are provided, and the multiple connecting rods 2 are arranged at equal intervals around the printing roller 4.

[0040] Specifically, the connecting rod 2 has an external thread 21 on its circumference, and the base 11, which is detachably connected to the connecting rod 2, has a through hole 111 for the connecting rod 2 to pass through. The connecting rod 2 is threadedly connected to a limit nut 22 through the external thread 21. Before installing the printing roller 4, first increase the distance between the two sets of conductive components 1, then place the printing roller 4 between the two sets of conductive components 1, and connect one end of the printing roller 4 to one set of conductive components 1; then adjust the position of the other set of conductive components 1 until the installation with the printing roller 4 is completed.

[0041] Reference Figure 2 and Figure 4Multiple connecting rods 2 are each equipped with a corresponding limiting nut 22. Each limiting nut 22 is rotatably connected to the surface of the base 11 facing away from the printing roller 4. Multiple first gears 221 are provided on the circumference of each limiting nut 22, arranged around its periphery. A knob 3 is rotatably connected to the base 11, which is detachably connected to the connecting rods 2, on the surface facing away from the printing roller 4. Multiple second gears 31 are provided on the circumference of the knob 3, arranged at intervals along its periphery. The second gear 31 corresponding to the knob 3 meshes with the first gears 221 corresponding to the limiting nuts 22. Thus, one knob 3 drives the other multiple limiting nuts 22 to rotate synchronously, improving operational convenience.

[0042] It is worth noting that the spacing between adjacent connecting rods 2 needs to allow the printing roller 4 to pass through.

[0043] In this embodiment, two connecting rods 2 are provided. When the printing roller 4 is immersed in the electroplating solution, the connecting rod 2 located at the higher position is above the surface of the electroplating solution, and the connecting rod 2 located at the lower position abuts against the bottom of the electroplating tank, so as to reduce the influence of the connecting rod 2 on the electroplating effect.

[0044] Specifically, in this embodiment, the conductive element 13 has a spherical structure, the diameter of the sliding cavity 121 is the same as the diameter of the conductive element 13, and the opening diameter of the sliding cavity 121 is smaller than the diameter of the conductive element 13. This design utilizes the rotatably connected spherical conductive element 13 to provide guidance during the insertion of the mounting shaft 12 into the insertion cavity 41. This allows the printing roller 4 to connect more smoothly to the mounting shaft 12, and also ensures that the friction between the printing roller 4 and the conductive element 13 is rolling friction, reducing damage to the conductive element 13.

[0045] Reference Figure 3 Furthermore, a guide portion 123 is provided at the end of the mounting shaft 12 away from the base 11. The guide portion 123 is tapered, thereby forming a guide during the insertion of the mounting shaft 12 into the insertion cavity 41, so as to improve the smoothness and efficiency of the installation of the printing roller 4.

[0046] Furthermore, a limiting protrusion ring 124 is integrally formed on the periphery of the guide portion 123. The outer wall of the limiting protrusion ring 124 is used to abut against the cavity wall of the insertion cavity 41, thereby using the limiting protrusion ring 124 to form a straight guide for the printing roller 4, so that the printing roller 4 will not be skewed during the movement. On the one hand, this ensures the smooth movement of the printing roller 4 relative to the mounting shaft 12, and on the other hand, it further reduces the damage to the conductive component 13.

[0047] In this embodiment, both the mounting shaft 12 and the limiting protrusion ring 124 are made of stainless steel.

[0048] Furthermore, the limiting protrusion 124 has multiple lightweight cavities 125 through it to reduce the weight of the mounting shaft 12 and save on manufacturing materials.

[0049] In this embodiment, two limiting protrusions 124 are provided. The two limiting protrusions 124 are arranged at intervals along the length direction of the guide portion 123, which ensures the guiding effect while also taking into account the lightweight.

[0050] The implementation principle of the connection structure for electroplating of the printing roller 4 in this application embodiment is as follows: Before electroplating the printing roller 4, first turn the knob 3 in the forward direction to increase the distance between the two sets of conductive components 1, then insert the printing roller 4 to be electroplated between the two sets of conductive components 1, and complete the connection between the end away from the limiting nut 22 and the corresponding conductive component 1; then turn the knob 3 in the reverse direction, and use the knob 3 to drive the limiting nut 22 to rotate, thereby moving the other set of conductive components 1 through the moving base 11, and finally completing the installation of the printing roller 4 and the other set of conductive components 1.

[0051] Then, the connecting structure and the printing roller 4 are placed together in the electroplating tank (to ensure stability after placement, the side wall of the base 11 must be in contact with the tank wall of the electroplating tank) for electroplating. After electroplating is completed, the connecting structure and the printing roller 4 are removed from the electroplating tank together using the lifting device, and the printing roller 4 can be replaced.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A connection structure for electroplating a printing roller, wherein both ends of the printing roller (4) have insertion cavities (41), characterized in that: The device includes a conductive component (1), which comprises a base (11), a mounting shaft (12), and a conductive element (13). The base (11) is used to connect to the electroplating tank, and the mounting shaft (12) is connected to the base (11). The mounting shaft (12) is used to accommodate the insertion cavity (41) of the printing roller (4). The mounting shaft (12) has multiple sliding cavities (121) on its circumference, which extend radially along the mounting shaft (12). The multiple sliding cavities (121) are evenly distributed on the mounting shaft. (12) Peripheral side; Multiple conductive elements (13) are provided, and the conductive elements (13) are installed in the sliding cavity (121). Multiple conductive elements (13) correspond one-to-one with multiple sliding cavities (121); A conductive spring (122) is provided in the sliding cavity (121). When the conductive element (13) abuts against the cavity wall of the insertion cavity (41), the conductive spring (122) is in a compressed state; Two sets of conductive components (1) are provided, and the two sets of conductive components (1) are respectively used to connect to both ends of the printing roller (4).

2. The connection structure for plate roller electroplating according to claim 1, characterized in that: The conductive element (13) has a spherical structure and is rotatably connected to the mounting shaft (12).

3. A connection structure for plate roller electroplating according to claim 1 or 2, characterized in that: The end of the mounting shaft (12) away from the base (11) is provided with a guide portion (123), which is tapered.

4. The connection structure for plate roller electroplating according to claim 3, characterized in that: A limiting protrusion ring (124) is provided around the periphery of the guide portion (123), and the outer wall of the limiting protrusion ring (124) is used to abut against the cavity wall of the insertion cavity (41).

5. The connection structure for plate roller electroplating according to claim 1, characterized in that: It also includes a connecting rod (2), one end of which is connected to one of the bases (11), and the other end is detachably connected to the other base (11).

6. The connection structure for plate roller electroplating according to claim 5, characterized in that: The connecting rod (2) has an external thread (21) on its periphery. The base (11) which is detachably connected to the connecting rod (2) has a through hole (111) for the connecting rod (2) to pass through. The connecting rod (2) is threadedly connected to a limit nut (22) through the external thread (21).

7. The connection structure for plate roller electroplating according to claim 6, characterized in that: The connecting rod (2) is provided in multiple ways. The multiple connecting rods (2) are arranged at intervals around the mounting shaft (12). The multiple connecting rods (2) are provided with multiple limiting nuts (22).

8. A connection structure for plate roller electroplating according to claim 6 or 7, characterized in that: Multiple limiting nuts (22) are rotatably connected to the surface of the base (11) away from the printing roller (4). Multiple first gears (221) are provided on the periphery of the limiting nuts (22). The base (11) which is detachably connected to the connecting rod (2) is rotatably connected to a knob (3) on the surface away from the printing roller (4). Multiple second gears (31) are provided on the periphery of the knob (3). The second gears (31) of the knob (3) mesh with the first gears (221) corresponding to the multiple limiting nuts (22).

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