CN211471619U - Open cylinder and workpiece processing device - Google Patents

Abstract

The utility model provides an open-type drum and a workpiece processing device. The open-type drum includes an open cylinder body and a conductive component; the workpiece treatment device includes an open-type drum. The conductive component is connected to the power supply, and one end of the conductive component is rotatably connected to the rotating component, and the other end can extend into the open cylinder or be placed outside the open cylinder. When the open drum of this structure is electroplated, when there are few workpieces in the drum and the distribution is scattered, even if the workpieces in the middle part of the drum cannot contact the cathode conductive shafts on both sides to conduct electricity, because the other end of the conductive component extends into the accommodating cavity It increases the contact area and contact probability between the workpiece and the cathode in the middle part, and improves the electroplating quality when there are fewer workpieces; at the same time, it will not cause a lot of loss of cations in the electroplating solution, saving costs; the conductive component does not follow the drum when it rotates. Simultaneously rotates in the circumferential direction, and the conductive components are not easily entangled with the workpiece, so as to avoid damage to the conductive components or the workpiece.

Description

An open drum and workpiece processing device

technical field

The utility model relates to the technical field of electroplating equipment, in particular to an open roller and a workpiece processing device.

Background technique

Barrel plating is drum electroplating, which is to place a certain number of workpieces in the inner cavity of the barrel plating barrel. Under the rotation of the drum, the workpieces are continuously contacted with the plating solution in the tank, and the required thickness of metal is deposited on the surface of the workpiece. layer or alloy coating to achieve the purpose of protection and other functions on the surface of the workpiece.

The open drum in the prior art includes a conductive shaft, a driving shaft, a passive shaft and a transmission belt arranged on both sides of the drum, wherein the transmission belt is wound around the driving shaft and the passive shaft and forms a closed loop, and the outer periphery of the front side on both sides of the transmission belt The surface is wound around the outer circumference of the conductive disc, and an accommodating cavity with an opening and inwardly recessed is enclosed between the front outer peripheral surface of the transmission belt and the two conductive discs. The external driving force drives the driving shaft to rotate, and the rotation of the driving shaft drives the rotation of the transmission belt to make the workpiece in the accommodating cavity roll continuously, so that the workpiece contacts the electroplating liquid in the tank and the conductive shafts on both sides of the drum, and the workpiece contacts the conductive shaft after conduction and adsorption Metal ions complete the electroplating.

However, with the open drum of this structure, when a small number of workpieces are installed in the drum, the distribution of the workpieces in the drum is relatively scattered, and the workpieces partially distributed in the middle of the drum during the rotation and tumbling process cannot contact the conductive shafts on both sides and cannot be conductively adsorbed Metal ions affect the electroplating effect; a small number of workpieces need to be rolled many times to fully contact the conductive shafts on both sides, resulting in low electroplating efficiency.

The transmission belt is made of non-conductive materials such as plastic. The electroplating solution contains cations. The workpiece to be plated is used as the cathode. The workpiece with the electroplating solution is in contact with the cathode conductive shafts on both sides during the tumbling process. After conduction, the cations in the electroplating solution on the workpiece A coating is formed on the surface of the workpiece by electrolytic deposition. When there are few workpieces in the drum, the conductive area of the cathode needs to be appropriately increased, and the transmission belt cannot be made of conductive material directly. If so, the area of the transmission belt as the cathode will be much larger than that of the product, and most of the cations will be deposited on the surface of the transmission belt. If a coating layer is formed on the workpiece, the effective and uniform electroplating of the workpiece cannot be achieved; at the same time, the consumption of cations will be large, and the cost of electroplating will be greatly increased.

There is also a drum structure in the prior art. The cables are inserted into the drum from the two end faces of the drum as the conductive electrodes in the electroplating process. With this kind of drum structure, when the cable is rotated with the drum, it is easy to be entangled with the workpiece and damage the cable or the workpiece.

Utility model content

Therefore, the technical problem to be solved by the present invention is to overcome the defects of poor electroplating effect and low electroplating efficiency of the open drum with a small number of workpieces to be electroplated in the prior art.

To this end, the present utility model provides an open drum, comprising:

an open cylinder, the open cylinder includes a transmission belt and a rotating assembly that drives the transmission belt to rotate, the transmission belt is wound around the outside of the rotating assembly and forms an accommodating inner cavity with an open opening and a recess; and

The conductive component is connected to the power supply, and one end of the conductive component is rotatably connected to the rotating component, and the other end can extend into the open cylinder or be placed outside the open cylinder.

Optionally, in the above-mentioned open drum, the rotating assembly includes a driving shaft and a passive shaft, the transmission belt is a closed loop and is wound around the driving shaft and the passive shaft, and one end of the conductive assembly is connected to the The drive shaft is connected in rotation.

Optionally, in the above-mentioned open drum, the open cylinder further includes a conductive disk, the conductive disk is arranged between the driving shaft and the driven shaft, and the end side of the transmission belt is wound around the on the conductive plate.

Optionally, in the above-mentioned open drum, the conductive assembly includes a conductive component and a rotating support that drives the conductive component to rotate, and the rotating support includes two side arms and a transverse arm that is fixedly connected to the conductive component; two Each of the side arms is rotatably arranged on the driving shaft, the transverse arm is spanned between the two side arms, and the transverse arm is fixedly connected with the side arms.

Optionally, in the above-mentioned open drum, the conductive member may extend to the outer surface of the front side of the transmission belt.

Optionally, in the above-mentioned open roller, there are a plurality of the conductive parts, and the plurality of the conductive parts are distributed on the transverse arm at equal intervals.

Optionally, in the above-mentioned open drum, the two side arms are arranged perpendicular to the axis of the driving shaft; the transverse arm is parallel to the axis of the driving shaft.

Optionally, in the above-mentioned open drum, the longitudinal section of a section of any of the side arms close to the driving shaft is arc-shaped, and a section of any of the side arms away from the driving shaft is a straight arm.

Optionally, in the above-mentioned open drum, the transmission belt is a chain plate or a belt.

The utility model provides a workpiece processing device, which comprises the open drum described in any one of the above.

The technical scheme of the utility model has the following advantages:

1. The open drum provided by the utility model includes an open cylinder and a conductive assembly, wherein the open cylinder includes a transmission belt and a rotating assembly that drives the transmission belt to rotate, and the transmission belt is wound around the outside of the rotating assembly and has an open mouth and a depression. The conductive component is connected to the power supply, and one end of the conductive component is rotatably connected to the rotating component, and the other end can extend into the interior of the open cylinder or be placed outside the open cylinder.

When the open drum of this structure is electroplating, the workpiece is accommodated in the accommodating cavity of the transmission belt, the conductive component acts as a cathode, and the other end of the conductive component extends into the accommodating cavity. In the cavity, the tumbling workpiece contacts the conductive components and conducts electricity, so that the cations on the workpiece are electrolytically deposited on the surface of the workpiece to form a coating; when there are few workpieces in the drum and the distribution is scattered, even the workpiece in the middle part of the drum cannot touch both sides when tumbling. Since the other end of the conductive component extends into the accommodating cavity, the contact area and contact probability between the workpiece and the cathode in the middle part are increased, and the electroplating quality is improved when there are few workpieces; at the same time, it will not lead to electroplating. A large amount of cations in the liquid is lost, which saves costs; because one end of the conductive component is connected to the rotating component and the other end extends into the drum, the conductive component is not arranged along the length of the drum, and the conductive component does not rotate synchronously with the drum in the circumferential direction when it rotates with the drum. , The conductive components are not easy to be entangled with the workpiece, so as to avoid damage to the conductive components or the workpiece.

2. In the open drum provided by the utility model, the longitudinal section of the section of either arm close to the driving shaft is arc-shaped, and the section of either arm away from the driving shaft is a straight arm. In the working state, rotating the rotating bracket makes the conductive parts extend into the receiving cavity of the drum, the setting of the arc segment of the side arm allows the side arm to extend into the receiving cavity from the middle of the opening of the drum, and the conductive parts extend to the middle of the outer surface of the front side of the drive belt , increase the contact probability of the workpiece with the conductive parts during the rolling process; at the same time, the setting of the arc segment of the side arm increases the strength of the rotating bracket, preventing the rotating bracket from breaking during repeated rotation, and replacing the rotating bracket and conductive parts will increase the cost.

3. In the open drum provided by the utility model, after the workpiece is electroplated, the workpiece is unloaded. In the unloading state, the drum rotates counterclockwise, the workpiece moves to the opening of the drum with the transmission belt, and the drum continues to rotate counterclockwise to take the workpiece out of the drum to complete the lowering. material. Rotate the conductive component counterclockwise so that it is placed outside the open cylinder, and set a foldable baffle on the support frame. In the unloading state, after the rotating support rotates to the top of the drum, unfold the baffle to block the side wall of the rotating support To fix the swivel bracket, or you can set a hook above the open drum, in the state of unloading, hook the swivel bracket with the hook to fix it. The installation of the conductive components not only appropriately increases the conductive area of the workpiece, but also achieves uniform electroplating when the workpieces are few and scattered. At the same time, the conductive components can be rotated to fix them outside the open cylinder in the blanking state to prevent the wire components from blocking the workpiece. , to ensure normal feeding.

4. The workpiece processing device provided by the present invention comprises an open drum, a base, a first fixing seat, a second fixing seat and a sealing plate. The first fixing seat and the second fixing seat are respectively arranged on both sides of the base, the sealing plate is arranged across the first fixing seat and the second fixing seat, and the space between the base, the first fixing seat, the second fixing seat and the sealing plate is enclosed. into a solid mounting frame, which forms a mounting cavity to accommodate the open roller.

In the workpiece processing device of this structure, the inner conductive component is arranged to increase the contact area and contact probability between the workpiece and the cathode in the middle part, and improve the electroplating quality when there are few workpieces; Save costs; at the same time, it can also ensure the normal unloading of the open drum.

Description of drawings

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 accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the following descriptions The accompanying drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1 is the left side view of the workpiece processing device provided in the second embodiment of the utility model in the working state;

Fig. 2 is the left side view of the workpiece processing device provided in Embodiment 2 of the utility model in the blanking state;

Fig. 3 is a three-dimensional schematic diagram of the workpiece processing device after removing part of the chain plate;

Fig. 4 is the three-dimensional structure schematic diagram of the workpiece processing device;

Description of reference numbers:

11-drive belt; 121-drive shaft; 122-passive shaft; 13-arc bracket; 14-conductive shaft; 15-tension frame; 21-conductive part; 22-rotating bracket; 221-side arm; 222-cross arm ; 3- conductive plate; 4- base; 5- the first fixing seat; 6- the second fixing seat; 7- sealing plate.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

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

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as there is no conflict with each other.

Example 1

This embodiment provides an open drum, as shown in FIG. 1 to FIG. 3 , which includes an open cylinder and a conductive component.

The open cylinder includes a transmission belt 11 and a rotating assembly that drives the transmission belt 11 to rotate. The transmission belt 11 is wound around the outside of the rotating assembly and forms an open and recessed accommodating cavity; the conductive assembly is connected to the power supply, and the conductive assembly is One end is rotatably connected to the rotating assembly, and the other end can extend into the interior of the open cylinder or be placed outside the open cylinder.

When the open drum of this structure is electroplated, the workpiece is accommodated in the accommodating cavity of the transmission belt 11, and the conductive component is used as a cathode. Rotate the conductive component clockwise to make the other end extend into the accommodating cavity, and the drum rotates clockwise to drive the workpiece upward. After the movement, the workpiece tumbles and falls into the accommodating cavity, and the tumbled workpiece contacts the conductive components and conducts electricity, so that the cations on the workpiece are electrolytically deposited on the surface of the workpiece to form a coating; when there are few workpieces in the drum and the distribution is scattered, even When the workpiece is rolled, the cathode conductive shafts 14 on both sides cannot be contacted for conduction. Since the other end of the conductive component extends into the accommodating cavity, the contact area and contact probability between the workpiece and the cathode in the middle part are increased. Electroplating quality; at the same time, it will not cause a lot of loss of cations in the electroplating solution, saving costs; because one end of the conductive component is connected to the rotating component, and the other end extends into the drum, the conductive component is not arranged along the length of the drum, and the conductive component follows the drum. When rotating, it does not rotate synchronously with the drum along the circumferential direction, and the conductive components are not easily entangled with the workpiece, so as to avoid damage to the conductive components or the workpiece.

Specifically, the open drum also includes two supporting frames (not shown in the figure), two conductive disks 3, two conductive shafts 14, a plurality of arc-shaped brackets 13 and two tensioning frames 15; the rotating assembly includes an active The shaft 121 and the passive shaft 122; the transmission belt 11 is a closed loop and is wound around the active shaft 121 and the passive shaft 122. The two supporting frames are arranged opposite to each other, the two ends of the driving shaft 121 are rotatably arranged on the supporting frames, the two conductive shafts 14 are respectively penetrated on the supporting frames on both sides, and the conductive disc 3 is sleeved on the conductive shafts 14 , the conductive shaft 14 is powered from the power supply, the conductive disc 3 is in contact with the conductive shaft 14 to conduct electricity, and the conductive area on both sides of the drum is appropriately increased to make the electroplating uniform. The conductive disc 3 is arranged between the driving shaft 121 and the passive shaft 122 , and the end side surface of the transmission belt 11 is wound around the conductive disc 3 .

The arc-shaped bracket 13 is arranged between the driving shaft 121 and the passive shaft 122, and both ends of the arc-shaped bracket 13 are fixed on the support frame. The transmission belt 11 is a chain plate or a belt.

Referring to FIG. 4 , the two tensioning frames 15 are respectively rotatably sleeved on the two conductive shafts 14, the tensioning frames 15 are located between the supporting frame and the conductive disc 3, and the two ends of the passive shaft 122 are rotatably arranged on the two conductive shafts 14. On the tensioning frame 15 on the side, there is a mounting hole on the tensioning frame 15. When the transmission belt 11 is slack and needs to be tensioned, rotate the tensioning frame 15 upward to make the transmission belt 11 tensioned, and then pass through the tensioning frame through the locking piece. The mounting holes on 15 fix the tensioning frame 15 on the support frame.

1 to 3 , the conductive assembly includes a conductive component 21 and a rotating bracket 22 that drives the conductive component 21 to rotate; the rotating bracket 22 includes two side arms 221 and a transverse arm 222 fixedly connected to the conductive component 21 ; the two side arms 221 One end close to the driving shaft 121 is rotatably sleeved on the driving shaft 121 , the transverse arm 222 is spanned between the two side arms 221 , and the transverse arm 222 is fixedly connected with the side arms 221 . The two side walls are arranged perpendicular to the axis of the driving shaft 121 , and the transverse arm 222 is parallel to the axis of the driving shaft 121 . There are a plurality of conductive parts 21 , the plurality of conductive parts 21 are distributed on the transverse arm 222 at equal intervals, and the plurality of conductive parts 21 extend into the accommodating cavity to appropriately increase the contact area and contact probability between the workpiece and the conductive parts 21 . When there are few and scattered distributions, the plating quality of the workpiece can be ensured, and a large amount of cations can be avoided at the same time.

The longitudinal section of a section of any side arm 221 close to the driving shaft 121 is arc-shaped, and a section of any side arm 221 away from the driving shaft 121 is a straight arm. As shown in FIG. 1 , in the working state, the rotating support 22 is rotated so that the conductive member 21 extends into the accommodating cavity of the drum; The part 21 extends to the middle of the outer surface of the front side of the transmission belt 11, which increases the probability of contact with the conductive part 21 during the rolling process of the workpiece; at the same time, the setting of the arc segment of the side arm 221 increases the strength of the rotating bracket 22, preventing the rotating bracket 22 from repeating If it is broken during the rotation, the replacement of the rotating bracket 22 and the conductive part 21 will increase the cost.

The rotating support 22 is made of conductive material and is connected with a wire, the wire is connected with the side arm 221 of the rotating support 22, the wire is drawn from the cathode cable to supply power to the rotating support 22, the conductive component 21 is a conductive rod, and the conductive rod is connected with the rotating support 22 to conduct electricity, The conductive rod is used as a cathode, and after it extends into the accommodating cavity, the workpiece contacts with it and conducts electricity, so that cations are deposited on the surface of the workpiece to form a coating.

As shown in Figure 2, after the workpiece is electroplated, the workpiece is blanked. In the blanking state, the drum rotates counterclockwise, the workpiece moves to the opening of the drum with the transmission belt 11, and the drum continues to rotate counterclockwise to take the workpiece out of the drum to complete the blanking. Rotate the conductive component counterclockwise so that it is placed outside the open cylinder, and set a foldable baffle on the support frame. In the unloading state, after the rotating bracket 22 is rotated to the top of the drum, unfold the baffle to block the rotating bracket 22. The side wall is used to fix the rotating bracket 22, or a hook can be provided above the open drum. In the cutting state, the rotating bracket 22 is hooked with a hook to fix it. The installation of the conductive components not only appropriately increases the conductive area of the workpiece, but also achieves uniform electroplating when the workpieces are few and scattered. At the same time, the conductive components can be rotated to fix them outside the open cylinder in the blanking state to prevent the wire components from blocking the workpiece. , to ensure normal feeding.

As a first alternative implementation of Embodiment 1, the two sections of the side wall of the rotating bracket 22 close to and away from the driving shaft 121 may be straight arms or arc arms. As long as in the electroplating state, the rotating support 22 can be rotated to make the conductive member 21 extend into the accommodating cavity, and in the unloading state, the rotating support 22 can be rotated to be placed outside the drum.

As a second alternative embodiment of Embodiment 1, the side wall may also be disposed at a certain inclination angle with the axis of the driving shaft 121 . As a further modification, the conductive parts 21 can be arranged on the cross arm 222 at unequal intervals, and only one conductive part 21 can be provided at the center of the cross arm 222; the conductive part 21 is also a conductive plate; the conductive part 21 extends into the accommodating cavity The front end may not extend to the outer surface of the front side of the transmission belt 11, but is separated from the outer surface of the front side by a certain distance, as long as the conductive member 21 can contact the workpiece after extending into the accommodating cavity, and the conductive area can be increased.

As a third alternative embodiment of Embodiment 1, the rotating bracket 22 may not be provided, and the conductive member 21 may be directly rotatably sleeved on the driving shaft 121 .

Example 2

This embodiment provides a workpiece processing device, as shown in FIG. 1 to FIG. 4 , which includes the open drum in Embodiment 1, a base 4 , a first fixing base 5 , a second fixing base 6 and a sealing plate 7 .

The first fixing seat 5 and the second fixing seat 6 are respectively arranged on both sides of the base 4, the sealing plate 7 is arranged across the first fixing seat 5 and the second fixing seat 6, the base 4, the first fixing seat 5, the second fixing seat 6 A solid mounting frame is formed between the fixed seat 6 and the sealing plate 7, and a mounting cavity is formed therein to accommodate the open roller.

Among them, the first fixing base 5 and the second fixing base 6 serve as the support frame of the open roller in Embodiment 1, and the two ends of the driving shaft 121 are respectively rotatably fixed on the first fixing base 5 and the second fixing base on both sides. On the two fixed bases 6, the two ends of the passive shaft 122 are respectively rotatably arranged on the tensioning frames 15 on both sides, and the two ends of the arc-shaped support 13 are respectively fixed on the first fixed base 5 and the second fixed base 6. The two conductive shafts 14 are respectively penetrated on the first fixing seat 5 and the second fixing seat 6 on both sides, the two conductive discs 3 are respectively sleeved on the conductive shafts 14 on both sides, and the two tensioning brackets 15 are respectively rotatable The ground is sleeved on the conductive shaft 14 .

In the workpiece processing device of this structure, the inner conductive component is arranged to increase the contact area and contact probability between the workpiece and the cathode in the middle part, and improve the electroplating quality when there are few workpieces; Save costs; at the same time, it can also ensure the normal unloading of the open drum.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (10)

1. An open drum, characterized in that it comprises An open cylinder, the open cylinder includes a transmission belt (11) and a rotating assembly that drives the transmission belt (11) to rotate, the transmission belt (11) is wound around the outside of the rotating assembly and forms a container with an open opening and a depression lumen; and The conductive component is connected to the power supply, and one end of the conductive component is rotatably connected to the rotating component, and the other end can extend into the open cylinder or be placed outside the open cylinder. 2. The open drum according to claim 1, characterized in that the rotating assembly comprises a driving shaft (121) and a passive shaft (122), and the transmission belt (11) is a closed loop and is wound around the driving shaft (122). On the shaft (121) and the passive shaft (122), one end of the conductive component is rotatably connected with the active shaft (121). 3. The open drum according to claim 2, characterized in that, the open cylinder further comprises a conductive disc (3), and the conductive disc (3) is provided on the driving shaft (121) and the passive shaft (121) between the shafts (122), and the side surface of the end portion of the transmission belt (11) is wound on the conductive disc (3). 4. The open roller according to claim 2 or 3, characterized in that the conductive assembly comprises a conductive component (21) and a rotating bracket (22) that drives the conductive component (21) to rotate, the rotating bracket (22) comprising two side arms (221) and a transverse arm (222) fixedly connected with the conductive member (21); the two side arms (221) are rotatably arranged on the driving shaft (121) Above, the transverse arm (222) is erected between the two side arms (221), and the transverse arm (222) is fixedly connected with the side arm (221). 5. The open drum according to claim 4, characterized in that the conductive member (21) can extend to the outer surface of the front side of the drive belt (11). 6 . The open roller according to claim 4 , characterized in that there are a plurality of the conductive parts ( 21 ), and the plurality of the conductive parts ( 21 ) are distributed on the transverse arm ( 222 ) at equal intervals. 7 . 7. The open drum according to claim 4, wherein the two side arms (221) are arranged perpendicular to the axis of the driving shaft (121); the transverse arms (222) are parallel to the The axis of the drive shaft (121). 8. The open drum according to claim 4, characterized in that, the shape of the longitudinal section of a section of any of the side arms (221) close to the driving shaft (121) is an arc shape, and any one of the side arms (221) has an arc shape. A section of the side arm (221) away from the driving shaft (121) is a straight arm. 9. The open drum according to any one of claims 1-3, characterized in that, the transmission belt (11) is a chain plate or a belt. 10. A workpiece processing device, characterized by comprising the open drum according to any one of claims 1-9.

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