An open drum and a workpiece processing device

Abstract

The present invention provides an open drum and a workpiece processing device. The open drum includes a transmission component, a conductive disk, and a material blocking component; the workpiece processing device includes the open drum. The material blocking component is disposed on the circumferential outer wall surface of the transmission belt close to the conductive disk, and the material blocking component can be abutted against the outer edge of the conductive disk. For the open drum with such a structure, the material blocking component blocks the gap between the transmission belt and the conductive disk, which can prevent small workpieces from being stuck in the gap, prevent the workpieces from being deformed and damaged, and ensure the strength and shape quality of the small workpieces after electroplating; it can also avoid abnormal rotation or even inability to rotate of the transmission belt when a large number of small workpieces are stuck in the gap, ensure the normal operation of the open drum, and improve production efficiency; it also avoids the wear of the conductive disk and the transmission belt caused by small workpieces being stuck in the gap, extends the service life of the conductive disk and the transmission belt, and saves costs; at the same time, the material blocking component can also prevent the workpieces from slipping out of the accommodating inner cavity of the drum through the gap.

Description

Technical Field

[0001] The present invention relates to the technical field of electroplating equipment, and in particular to an open roller and a workpiece processing device. Background Art

[0002] Barrel plating is also known as drum electroplating. A certain number of workpieces are placed in the inner cavity of a barrel. As the drum rotates, the workpieces are continuously exposed to the plating liquid in the tank, and a metal layer or alloy coating of the required thickness is deposited on the surface of the workpiece to achieve the purpose of protecting the workpiece surface and other functions.

[0003] Conventional open rollers include conductive discs, a driving shaft, a driven shaft, and a transmission belt. The transmission belt is wound around the driving and driven shafts in a closed loop. The front outer circumferences of the transmission belts are wrapped around the outer circumferences of the conductive discs. An opening and an inwardly recessed receiving cavity are formed between the front outer circumferences of the transmission belts and the two conductive discs. An external driving force drives the driving shafts to rotate, which in turn drives the transmission belts to continuously tumble the workpieces within the receiving cavity, ensuring full contact between the workpieces and the plating or cleaning solution within the tank, completing the workpiece plating or cleaning process.

[0004] However, with this structure of the open roller, there is a certain gap between the front outer peripheral surface of the transmission belt and the outer peripheral surface of the conductive disk. During use of the open roller, a gap will also be generated between the front outer peripheral surface of the transmission belt and the outer peripheral surface of the conductive disk. When the workpiece to be electroplated or cleaned in the roller is small in size, the workpiece is easily stuck in the gap between the transmission belt and the conductive disk, causing deformation and damage to the workpiece; the workpiece is also easy to slip out of the accommodating inner cavity from the gap between the transmission belt and the conductive disk, resulting in poor tumbling effect of the workpiece, affecting the electroplating and cleaning effects. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art of the open roller having a gap between the conductive disk and the transmission belt, which easily leads to deformation or damage of the workpiece and poor electroplating and cleaning effects.

[0006] To this end, the present invention provides an open drum, comprising

[0007] A transmission assembly, comprising a driving shaft, a driven shaft and a transmission belt, wherein the transmission belt is in a closed loop and is wound around the driving shaft and the driven shaft;

[0008] A conductive disk, the conductive disk being provided between the driving shaft and the driven shaft, and the end side surface of the transmission belt being wound around the conductive disk;

[0009] It also includes a material blocking component, which is arranged on the circumferential outer wall surface of the transmission belt close to the conductive disk, and the material blocking component can abut against the outer edge of the conductive disk.

[0010] Optionally, for the above-mentioned open drum, the number of the material blocking components is at least two, and the material blocking components are respectively located on opposite sides of the conductive disk.

[0011] Optionally, for the above-mentioned open drum, the height of the material blocking component is greater than or equal to the height of the gap between the transmission belt and the conductive disk.

[0012] Optionally, for the above-mentioned open drum, the first surface of the material blocking component close to the conductive disk is in contact with the conductive disk, and the second surface of the material blocking component far from the conductive disk is inclined towards the transmission belt in a direction away from the conductive disk.

[0013] Optionally, for the above-mentioned open drum, the cross-section of the material blocking component is a right triangle, and the second surface is the surface where the hypotenuse of the right triangle is located.

[0014] Optionally, for the above-mentioned open drum, it further includes at least two oppositely arranged support frames. The driving shaft and the driven shaft are rotatably mounted on the support frames, and the number of the conductive disks is two, and the conductive disks are rotatably attached to the inner side walls of the support frames.

[0015] Optionally, for the above-mentioned open drum, the transmission belt is a chain plate, the material blocking component includes a plurality of sub-components, the sub-components are laid on the chain plate end to end, and each section of the chain plate has at least one sub-component.

[0016] Optionally, for the above-mentioned open drum, each section of the chain plate has one sub-component, and the length of the sub-component along the circumferential direction of the chain plate is the same as the pitch of the chain plate.

[0017] Optionally, for the above-mentioned open drum, the transmission belt is a belt, the material blocking component is an integral structure, the material of the material blocking component is a soft material, and the material blocking component is arranged on the outer circumferential wall surface of the belt close to the conductive disk in a circle.

[0018] The present invention provides a workpiece processing device, including the open drum described in any one of the above.

[0019] The technical solution of the present invention has the following advantages:

[0020] 1. The open drum provided by the present invention includes a transmission component, a conductive disk and a material blocking component. Among them, the transmission component includes a driving shaft, a driven shaft and a transmission belt. The transmission belt is a closed loop and is wound around the driving shaft and the driven shaft; the conductive disk is arranged between the driving shaft and the driven shaft, and the end side surface of the transmission belt is wound around the conductive disk; the material blocking component is arranged on the outer circumferential wall surface of the transmission belt close to the conductive disk, and the material blocking component can be abutted against the outer edge of the conductive disk.

[0021] For the open drum of this structure, the material blocking component is arranged on the circumferential outer wall surface of the conveyor belt close to the conductive disk, covering the gap between the conveyor belt and the conductive disk, which can prevent small workpieces from getting stuck in the gap, prevent the workpieces from being deformed and damaged, and ensure the strength and shape quality of the small workpieces after electroplating. When a large number of small workpieces get stuck in the gap, it will also cause abnormal rotation or even inability to rotate of the conveyor belt. The conveyor belt cannot drive the workpieces in the drum to tumble and electroplate normally, and it is necessary to stop electroplating and clean the gap in time, which prolongs the working time and reduces the production efficiency. The setting of the material blocking component can effectively prevent the occurrence of this fault and improve the production efficiency. It also avoids the wear of the conductive disk and the conveyor belt caused by small workpieces getting stuck in the gap, prolongs the service life of the conductive disk and the conveyor belt, and saves costs. At the same time, the material blocking component can also prevent the workpieces from slipping out of the accommodation inner cavity of the drum from the gap.

[0022] 2. For the open drum provided by the present invention, the cross-section of the material blocking component is a right triangle. The first surface of the material blocking component close to the conductive disk is a vertical surface, and the first surface is in contact with the conductive disk. The second surface of the material blocking component far from the conductive disk is the surface where the hypotenuse of the right triangle is located, and the second surface is inclined towards the surface of the chain plate. When the workpiece tumbles and falls on the material blocking component, it will slide along the second surface into the electroplating solution to contact the electroplating solution and will not deposit on the material blocking component.

[0023] 3. For the open drum provided by the present invention, the material blocking component includes multiple sub-components, and the multiple sub-components are laid end to end on the circumferential outer wall surface of the chain plate. There is one sub-component on each section of the chain plate, and the length of the sub-component along the circumferential direction of the chain plate is the same as the pitch of the chain plate. The sub-component rotates synchronously with the chain plate, and there is always a sub-component on the chain plate in the area of the conductive disk in contact with the conductive disk to cover the gap between the chain plate and the conductive disk, preventing small workpieces from getting stuck in the gap or slipping out of the gap.

[0024] 4. For the open drum provided by the present invention, the material blocking component is arranged on the opposite sides of the conductive disk, which plays a role in limiting the conductive disk and preventing the conductive disk from shaking around the conductive shaft.

[0025] 5. The workpiece processing device provided by the present invention includes an open drum, a base, a first fixed seat, a second fixed seat and a sealing plate. The first fixed seat and the second fixed seat are respectively arranged on both sides of the base, the sealing plate straddles between the first fixed seat and the second fixed seat, and a firm installation frame is formed among the base, the first fixed seat, the second fixed seat and the sealing plate, and an installation cavity is formed inside it to accommodate the open drum.

[0026] The workpiece processing device with this structure has an internal material blocking component. The setting of this component can prevent small workpieces from getting stuck in the gap between the conductive disk and the conveyor belt, prevent workpiece deformation and damage, and ensure the strength and shape quality of small workpieces after electroplating. It can also avoid abnormal rotation or even inability to rotate of the conveyor belt when too many small workpieces are stuck in the gap, ensure the normal operation of the workpiece processing device, and improve production efficiency. At the same time, it also avoids wear of the conductive disk and the conveyor belt caused by small workpieces getting stuck in the gap, extends the service life of the conductive disk and the conveyor belt, and saves costs. At the same time, the material blocking component can also prevent workpieces from slipping out of the accommodating inner cavity of the drum from the gap. Brief Description of the Drawings

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a cross-sectional view of the open drum provided in Embodiment 1 of the present invention;

[0029] Figure 2 It is a schematic diagram of the positional relationship among the conductive disk, the conveyor belt and the material blocking component;

[0030] Figure 3 It is a schematic diagram of the positional relationship among the conductive disk, the conveyor belt and the material blocking component in the variant embodiment of Embodiment 1 of the present invention;

[0031] Figure 4 It is a schematic diagram of the workpiece processing device provided in Embodiment 2;

[0032] Figure 5 For Figure 3 It is a schematic diagram of the structure after removing part of the conveyor belt;

[0033] Explanation of the Reference Numerals in the Drawings:

[0034] 11 - Driving shaft; 12 - Driven shaft; 13 - Conveyor belt; 14 - Arc-shaped bracket; 21 - Conductive disk; 22 - Conductive shaft; 3 - Material blocking component; 31 - Sub-component; 4 - Tensioning frame; 5 - Base; 6 - First fixing seat; 7 - Second fixing seat; 8 - Sealing plate. Specific Embodiments

[0035] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0038] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] Embodiment 1

[0040] This embodiment provides an open drum, as Figure 1 , Figure 4 and Figure 5 shown, which includes a transmission component, a conductive disk 21, and a material blocking component 3.

[0041] Among them, the transmission component includes a driving shaft 11, a driven shaft 12, and a transmission belt 13. The transmission belt 13 is in a closed loop and wound around the driving shaft 11 and the driven shaft; the conductive disk 21 is provided between the driving shaft 11 and the driven shaft 12, and the end side of the transmission belt 13 is wound around the conductive disk 21; as Figure 1 shown, the material blocking component 3 is arranged on the outer circumferential wall surface of the transmission belt 13 close to the conductive disk 21, and the material blocking component 3 can be abutted against the outer edge of the conductive disk 21.

[0042] The open roller of this structure has a material stopping component 3 arranged on the circumferential outer wall of the transmission belt 13 near the conductive disk 21, blocking the gap between the transmission belt 13 and the conductive disk 21, which can prevent small workpieces from getting stuck in the gap, prevent the workpieces from being deformed and damaged, and ensure the strength and appearance quality of the small workpieces after electroplating; when a large number of small workpieces are stuck in the gap, it will also cause the transmission belt 13 to rotate abnormally or even unable to rotate, and the transmission belt 13 cannot drive the workpieces in the roller to roll and electroplating normally, and it is necessary to stop electroplating and clean the gap in time, which prolongs the working time and reduces the production efficiency. The setting of the material stopping component 3 can effectively prevent the occurrence of this fault, improves the production efficiency, and avoids the conductive disk 21 and the transmission belt 13 from being worn after the small workpieces are stuck in the gap, thereby extending the service life of the conductive disk 21 and the transmission belt 13 and saving costs. At the same time, the material stopping component 3 can also prevent the workpiece from slipping out of the accommodating cavity of the roller from the gap.

[0043] Specifically, the transmission belt 13 is a chain plate, and the height of the blocking component 3 is greater than the height of the gap between the chain plate and the conductive disk 21, so as to completely block the gap between the chain plate and the conductive disk 21 to prevent small workpieces from being stuck.

[0044] like Figure 2 As shown, the cross-section of the blocking component 3 is a right triangle, the first surface of the blocking component 3 close to the conductive disk 21 is a vertical surface, and the first surface is in contact with the conductive disk 21; the second surface of the blocking component 3 away from the conductive disk 21 is the surface where the hypotenuse of the right triangle is located, and the second surface is inclined toward the surface of the chain plate. When the workpiece rolls and falls onto the blocking component 3, it will slide into the electroplating solution along the second surface to contact the electroplating solution and will not be deposited on the blocking component 3.

[0045] See also Figure 1 The material retaining component 3 comprises multiple subcomponents 31, which are laid end-to-end on the circumferential outer wall of the chain plate (only three subcomponents 31 are shown in the figure). Each chain plate has a subcomponent 31, and the circumferential length of the subcomponent 31 along the chain plate is the same as the chain plate pitch. The subcomponents 31 rotate synchronously with the chain plate. On the chain plate in the area of the conductive disk 21, the subcomponent 31 always fits in contact with the conductive disk 21 to block the gap between the chain plate and the conductive disk 21, preventing small workpieces from getting stuck in the gap or slipping out of it.

[0046] The number of the conductive discs 21 is two, and the material blocking components 3 are arranged on the circumferential outer wall surfaces of the chain plates on the relative two sides of any one of the conductive discs. The open drum further includes two support frames (not shown in the figure), two conductive shafts 22, a plurality of arc-shaped brackets 14 and two tensioning frames 4; wherein, the two support frames are arranged oppositely, the two ends of the driving shaft 11 are rotatably arranged on the support frames, the two conductive shafts 22 are respectively arranged through the support frames on both sides, the two conductive discs 21 are respectively sleeved on the two conductive shafts 22, the conductive shafts 22 draw electricity from the power source, and the conductive discs 21 are in contact with the conductive shafts 22 to conduct electricity, appropriately increasing the conductive area on both sides of the drum to make the electroplating uniform; the material blocking components are arranged on the relative two sides of the conductive discs to play a role in limiting the conductive discs and prevent the conductive discs from shaking around the conductive shafts.

[0047] The arc-shaped brackets 14 are arranged between the driving shaft 11 and the driven shaft 12, and the two ends of the arc-shaped brackets 14 are fixed on the support frames, and the arc-shaped brackets 14 play a role in supporting the chain plates. See Figure 3 and Figure 4 , the two tensioning frames 4 are respectively rotatably sleeved on the two conductive shafts 22, the tensioning frames 4 are located between the support frames (not shown in the figure) and the conductive discs 21, and the two ends of the driven shaft 12 are rotatably arranged on the two tensioning frames 4 on both sides so that the driven shaft 12 is rotatably arranged on the support frames. The tensioning frames 4 are provided with mounting holes. When the transmission belt 13 is slack and needs to be tensioned, the tensioning frame 4 is rotated upward to tighten the transmission belt 13, and then the tensioning frame 4 is fixed on the support frame by a locking member passing through the mounting hole on the tensioning frame 4.

[0048] As the first alternative implementation manner of Embodiment 1, there can be multiple sub-components 31 on each chain plate. For example, two, three, four, etc. There are an integer number of sub-components 31 connected end to end on each chain plate, as long as it does not affect the rotation of the chain plate.

[0049] As the second alternative implementation manner of Embodiment 1, the support frames can also be not provided, and the driving shaft 11 can be directly rotatably arranged on the machine frame, the conductive shaft 22 is arranged through the machine frame, the conductive disc 21 is sleeved on the conductive shaft 22, the tensioning frame 4 is sleeved on the conductive shaft 22, and the driven shaft 12 is arranged on the tensioning frame 4. As a further deformation, the tensioning frame 4 can also be not provided, and the driven shaft 12 can be directly rotatably arranged on the support frame or the machine frame. As a deformation, the conductive disc 21 can be only arranged at one end of the two ends of the chain plate, and a circular baffle is arranged at the other end. The end side of the other end of the chain plate is wound around the circular baffle, and the material blocking components 3 are arranged on the circumferential outer wall surfaces of the chain plate close to the conductive disc 21 and the circular baffle.

[0050] As the third alternative embodiment of Embodiment 1, the second surface of the material blocking member 3 may also be an arc-shaped inclined surface, as long as the workpiece can easily slide down along the second surface; the material blocking member 3 may also have four surfaces. For example, its cross-section is a right trapezoid, and the surface where the right-angled waist is located is the first surface that fits with the conductive disc 21. The second surface of the material blocking member 3 may also be parallel to the first surface. For example, the cross-section of the material blocking member 3 is a rectangle, as long as the material blocking member 3 can block the gap between the chain plate and the conductive disc 21. As a further variation, the height of the material blocking member 3 may also be equal to or slightly less than the height of the gap between the chain plate and the conductive disc 21, as long as the material blocking member 3 can block or partially cover the gap so that small workpieces cannot be stuck in the gap.

[0051] As the fourth alternative embodiment of Embodiment 1, refer to Figure 3 , one side of the conductive disc may be provided with only one material blocking member, and the material blocking member is located at one end of the conductive disc facing the inside of the open drum. The material blocking member can block the gap between the conductive disc inside the drum and the transmission belt, preventing small workpieces from being stuck in the gap or preventing small workpieces from sliding out of the drum along the gap from the inside of the drum.

[0052] Embodiment 2

[0053] This embodiment provides an open drum, which is different from the open drum in Embodiment 1 in that the transmission belt 13 is a belt, the material blocking member 3 is an integral structure, the material of the material blocking member 3 is a soft material, the material blocking member 3 is arranged on the outer circumferential wall surface of the belt close to the conductive disc 21 in a circle, and the material blocking member 3 rotates synchronously with the belt to block the gap between the belt and the conductive disc 21, preventing small workpieces from being stuck in the gap or sliding out of the gap.

[0054] Embodiment 3

[0055] This embodiment provides a workpiece processing device, as shown in Figure 3 and Figure 4 , which includes the open drum in Embodiment 1 or Embodiment 2, a base 5, a first fixing seat 6, a second fixing seat 7 and a sealing plate 8.

[0056] The first fixing seat 6 and the second fixing seat 7 are respectively arranged on both sides of the base 5, the sealing plate 8 straddles between the first fixing seat 6 and the second fixing seat 7, and a firm installation frame is formed among the base 5, the first fixing seat 6, the second fixing seat 7 and the sealing plate 8, and an installation cavity is formed inside it to accommodate the open drum.

[0057] Among them, the first fixed seat 6 and the second fixed seat 7 act as the support frames of the open drum in Embodiment 1 or Embodiment 2. Both ends of the driving shaft 11 are rotatably fixed to the first fixed seat 6 and the second fixed seat 7 on both sides respectively. Both ends of the driven shaft 12 are rotatably arranged on the tensioning frames 4 on both sides respectively. Both ends of the arc-shaped bracket 14 are fixed to the first fixed seat 6 and the second fixed seat 7 respectively. Two conductive shafts 22 are respectively inserted through the first fixed seat 6 and the second fixed seat 7 on both sides. Two conductive disks 21 are respectively sleeved on the conductive shafts 22 on both sides. Two tensioning frames 4 are respectively rotatably sleeved on the conductive shafts 22.

[0058] For the workpiece processing device with this structure, the setting of the inner material blocking component 3 can prevent small workpieces from getting stuck in the gap between the conductive disk 21 and the transmission belt 13, prevent the workpieces from being deformed and damaged, and ensure the strength and shape quality of the small workpieces after electroplating; it can also avoid abnormal rotation or even inability to rotate of the transmission belt 13 when too many small workpieces are stuck in the gap, ensure the normal operation of the workpiece processing device, and improve production efficiency; at the same time, it also avoids the wear of the conductive disk 21 and the transmission belt 13 caused by small workpieces getting stuck in the gap, extends the service life of the conductive disk 21 and the transmission belt 13, and saves costs; at the same time, the material blocking component 3 can also prevent the workpieces from slipping out of the accommodating inner cavity of the drum from the gap.

[0059] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An open drum, comprising A transmission assembly comprises a driving shaft (11), a driven shaft (12) and a transmission belt (13), wherein the transmission belt (13) is in the form of a closed loop and is wound around the driving shaft (11) and the driven shaft; A conductive disk (21), the conductive disk (21) being arranged between the driving shaft (11) and the driven shaft (12), and the end side of the transmission belt (13) being wound around the conductive disk (21); It is characterized in that It also includes a material blocking component (3) which is arranged on the circumferential outer wall surface of the transmission belt (13) close to the conductive disk (21), and the material blocking component (3) can abut against the outer edge of the conductive disk (21); A first surface of the material blocking component (3) close to the conductive disk (21) is in contact with the conductive disk (21), and a second surface of the material blocking component (3) away from the conductive disk (21) is inclined toward the transmission belt (13) in a direction away from the conductive disk (21); The transmission belt (13) is a chain plate, and the material blocking component (3) includes a plurality of subcomponents (31). The subcomponents (31) are laid end to end on the chain plate, and each section of the chain plate has at least one subcomponent (31).

2. The open drum according to claim 1, characterized in that The number of the material blocking components (3) is at least two, and the material blocking components are respectively located on two opposite sides of the conductive disk.

3. The open drum according to claim 1 or 2, characterized in that: The height of the material blocking component (3) is greater than or equal to the height of the gap between the transmission belt (13) and the conductive disk (21).

4. The open drum according to claim 1 or 2, characterized in that The cross section of the material blocking component (3) is a right triangle, and the second surface is the surface where the hypotenuse of the right triangle is located.

5. The open drum according to claim 1 or 2, characterized in that: It also includes at least two supporting frames arranged opposite to each other, the active shaft (11) and the passive shaft (12) are both rotatably mounted on the supporting frames, and there are two conductive disks (21), which are rotatably attached to the inner side walls of the supporting frames.

6. The open drum according to claim 1 or 2, characterized in that: Each link plate has a sub-component (31), and the length of the sub-component (31) along the circumference of the link plate is the same as the pitch of the link plate.

7. The open drum according to claim 1 or 2, characterized in that: The transmission belt (13) is a belt, the material blocking component (3) is an integrated structure, the material of the material blocking component (3) is a soft material, and the material blocking component (3) is arranged on a circumference of the belt close to the circumferential outer wall surface of the conductive disk (21).

8. A workpiece processing device, characterized in that: The open drum comprises the open drum according to any one of claims 1 to 7.

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