CN216155997U

CN216155997U - Opposite-pulling electricity-leading type universal hanger used in screw head electroplating process

Info

Publication number: CN216155997U
Application number: CN202121889476.7U
Authority: CN
Inventors: 潘晓敏; 谢杰辉; 贺明亮; 应家益; 王鲁磊
Original assignee: Haitian Plastics Machinery Group
Current assignee: Haitian Plastics Machinery Group
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-04-01
Anticipated expiration: 2031-08-12

Abstract

The utility model discloses a counter-pulling electricity-leading type universal hanger used in a screw head electroplating process, which comprises a hanger unit, wherein the hanger unit comprises two hangers distributed in a mirror symmetry manner, one end of each hanger opposite to the other end is a screw head extending-in end, the two hangers are respectively clamped with a screw head so that the two screw heads are arranged in a mirror symmetry manner, and the sharp heads of the two screw heads are opposite and close to each other; its advantages are low cost, low labour intensity and high efficiency.

Description

Opposite-pulling electricity-leading type universal hanger used in screw head electroplating process

Technical Field

The utility model relates to an electroplating conductive hanger, in particular to a counter-pulling electric-type universal hanger used in a screw head electroplating process.

Background

The quality of the screw head plays a very critical role in the quality of the injection molding process of the injection molding machine, and the chromium plating in the screw head electroplating process is an important part for determining the quality of the screw head.

The screw head electroplating process mostly adopts a rack plating mode, and an electroplating conductive hanger is required for rack plating. The structure of a traditional electroplating conductive hanger is shown in fig. 1, and comprises a transverse rack body 100 and a hanger unit 101, wherein the hanger unit 101 clamps a single screw head 109, the hanger unit 101 consists of a cathode 102, a cathode mounting hanger 103 for mounting the cathode 102 and a shaft clamping hanger 104 for clamping the single screw head 109, one end of the cathode mounting hanger 103 is connected with the transverse rack body 100 so that the cathode mounting hanger 103 is hung on the transverse rack body 100, the other end of the cathode mounting hanger 103 is connected with one end of the shaft clamping hanger 104, the cathode 102 is made of an iron material, the cathode 102 is in a planar spiral shape, the cathode 102 is positioned right below the screw head 109, an iron wire 105 is integrally connected with the outer end of the spiral line of the cathode 102, and the other end of the iron wire 105 is wound on the cathode mounting hanger 103 after being subjected to insulation treatment; when the screw head 109 is clamped, the cathode 102 is firstly moved away, then the top of the screw head 109 extends into the shaft clamping hanger 104 from the other end of the shaft clamping hanger 104 to be clamped by the shaft clamping hanger 104, then the cathode 102 is moved to the position under the screw head 109, the cathode mounting hanger 103 is a current leading-in end after being electrified, and the cathode 102 is positioned under the screw head 109 to form a current closed loop. In order to prevent the occurrence of defects such as burrs and over-thickness at the tip part of the screw head 109 after electroplating, the cathode 102 is arranged right below the screw head 109 to electrically pull the cathode 102 from the screw head 109, but the introduction of the cathode 102 causes the following problems: 1) the cathode 102 is a planar spiral wire with the outer diameter not larger than the diameter of the screw head 109, and the spiral wire is required to be uniform and dense, so that the manufacturing of the cathode 102 is relatively difficult, a professional technician is required to manually complete the manufacturing, and the manufacturing cost of the cathode 102 is high; 2) the cathode 102 is made of iron material, the cathode 102 is immersed in the electroplating solution in the screw head 109 electroplating process, on one hand, the screw head 109 is in an electrified state in the electroplating process, so the cathode 102 is electroplated, and energy, resources and efficiency are wasted; on the other hand, iron ions in the cathode 102 are decomposed under the electroplating action, heavy pollutants such as chromium with 6 valences are generated when the iron ions are dissolved in the electroplating solution, the polluted electroplating solution is very expensive to treat in an environment-friendly way and replace, the electroplating cost is greatly increased, and the labor intensity is increased; 3) the smaller the gap between the tip portion of the screw head 109 and the cathode 102, the better the electroplating effect, but since the cathode 102 is made of iron material and is very flexible, the cathode 102 is easy to touch and deform during the process of entering the electroplating tank, and if the cathode 102 touches the tip portion of the screw head 109, the tip portion of the screw head 109 cannot be electroplated with chromium. In addition, the rack unit 101 in the electroplating conductive rack can only clamp one screw head 109, and only one screw head 109 can be electroplated at a time, so that the efficiency is low.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a counter-pulling electricity-leading type universal hanger used in a screw head electroplating process, which has low electroplating cost, low labor intensity and high efficiency.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a pull general hanger of formula of drawing electricity for screw rod head electroplating process, includes hanger unit, its characterized in that hanger unit include two mirror symmetry distribution's hanger, two the relative one end of hanger be the screw rod head and stretch into the end, two the hanger on respectively the clamping screw rod head make two screw rod head mirror symmetry arrange, the pointed head part of two screw rod heads just faces and is close to.

The hanger unit further comprises vertical supporting rods, and the two hangers are connected to the same side of the vertical supporting rods and are distributed in a vertically mirror-symmetrical mode. The vertical support rods of the plurality of hanging tool units can be connected to one transverse main rod side by side, and a plurality of screw heads can be electroplated simultaneously.

The two hangers have the same structure and consist of a horizontal support rod, a V-shaped clamping block and a locking bolt which are integrally connected, one end of the horizontal supporting rod is connected with the vertical supporting rod, the other end of the horizontal supporting rod is connected with the outer side wall of one side of the V-shaped clamping block, the V-shaped clamping block is provided with a V-shaped groove, a closing plate for closing the notch of the V-shaped groove is integrally arranged on the V-shaped clamping block, the horizontal spiro union of locking bolt in the shrouding on, the end of locking bolt stretch into the V-arrangement inslot just right the V-arrangement inslot sharp groove end, the upper portion of screw head certainly the screw head stretch into the end stretch into the V-arrangement inslot after tighten locking bolt make the end of locking bolt promote the upper portion of screw head and then make the diametral plane on the upper portion of screw head with the equal line contact of two cell walls in V-arrangement groove. The V-shaped clamping block is provided with a V-shaped groove, the V-shaped groove can accommodate the upper part of the screw head, when the radial surface of the upper part of the screw head is in line contact with the two groove walls of the V-shaped groove, the screw head is inevitably vertical without deflection, and the screw head cannot fall off after being clamped; the locking bolt arranged on the sealing plate is used for pushing the upper part of the screw head, after the screw head is clamped, the radial surface of the upper part of the screw head is in line contact with the two groove walls of the V-shaped groove, and the locking bolt is in point contact with the upper part of the screw head, namely one point of two lines, so that the clamping is stable and firm, the electric conductivity is greatly improved, and the electroplating efficiency and the electroplating quality are guaranteed; during operation, an operator only needs to screw the locking bolt, even if the upper part of the screw head is obliquely placed into the V-shaped groove, the screw head can be automatically corrected by screwing the locking bolt, so that the screw head is inevitably vertical without the phenomenon of deflection, the operation requirement is low, the operator does not need to have operation skill, and the labor intensity is low.

The outer side wall of the sealing plate is provided with a guide block, and the locking bolt is in threaded connection with the guide block. The setting up of guide block makes the process of locking bolt level screwing up or unscrewing more stable, makes the locking bolt can better withstand the upper portion of screw head simultaneously to make the screw head clamping more stable.

The locking bolt is positioned on the exposed part of the outer side of the sealing plate, and an insulating cover used for preventing electric energy loss and preventing the locking bolt from being plated with chrome is arranged on the exposed part of the outer side of the sealing plate.

Compared with the prior art, the utility model has the advantages that:

1) two hangers are distributed in a mirror symmetry mode, a screw head is clamped on each hanger, and the two screw heads arranged in the mirror symmetry mode achieve opposite-pulling electricity conduction, so that current closed loop is achieved, and the effect of a cathode is replaced.

2) Because the spiral cathode does not need to be manufactured, only one hanging tool needs to be added, thereby avoiding the manual labor of a professional technician and reducing the overall cost.

3) The structure of two hangers of mirror symmetry distribution has avoided spiral helicine negative pole can be by the electroplating action and produce extravagant energy, resource and efficiency, has also avoided spiral helicine negative pole to produce simultaneously and has polluted and need change the plating solution under the electroplating action, has reduced the electroplating cost, has reduced intensity of labour, and more environmental protection.

4) The positions of the two hangers which are distributed in a mirror symmetry way are fixed, so that the sharp heads of the two screw heads are close to each other and cannot be contacted, and the electroplating effect is ensured.

5) As for each hanger unit, two hangers are arranged, two screw heads can be clamped simultaneously, namely two screw heads can be electroplated at one time, and the efficiency is high.

6) Through actual process tests, the clamping screw head of the pull-pull electric type universal hanger is used for electroplating, the result of electroplating data completely meets the requirement of a drawing, and the electroplating quality is higher than that of a traditional electroplating conductive hanger.

Drawings

FIG. 1 is a schematic structural diagram of a single hanger unit in a conventional electroplating conductive hanger;

FIG. 2 is a schematic structural diagram I of a counter-pull electric universal hanger (clamped screw head) according to the present invention;

FIG. 3 is a schematic structural view of a counter-pull electric-type universal hanger (clamped screw head) according to the present invention;

fig. 4 is a partially exploded view of the counter-pull electric universal hanger (clamped screw head) according to the present invention.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

Following the principle of electroplating technology, the electroplating process needs smooth current operation, which requires cathode pulling, i.e. the cathode corresponding to the product is indispensable, so that it is impossible to cancel the cathode to avoid the disadvantage caused by the arrangement of the cathode in the conventional electroplating conductive hanger, in order to ensure the conformity with the basic principle of electroplating and break through the corresponding technical bottleneck, the utility model provides an opposite pulling electricity-leading type universal hanger used in the screw head electroplating process, as shown in fig. 2, 3 and 4, which comprises a hanger unit 200, wherein the hanger unit 200 comprises two hangers 201 which are symmetrically distributed in mirror image, the opposite ends of the two hangers 201 are screw head extending ends 202, the two hangers 201 are respectively provided with one screw head 300 to ensure the mirror image symmetrical arrangement of the two screw heads 300, the tip parts of the two screw heads 300 are opposite and close to realize opposite pulling electricity-leading, the gap between the tip parts of the two screw heads 300 is smaller as much as possible, thus, the electroplating effect is better.

In this embodiment, the hanger unit 200 further includes a vertical support rod 203, the two hangers 201 are connected to the same side of the vertical support rod 203 and are distributed in a mirror symmetry manner from top to bottom, the vertical support rods 203 of the plurality of hanger units 200 can be connected to a horizontal main rod (not shown in the figure) side by side, and a plurality of screw heads 300 can be electroplated simultaneously.

In this embodiment, the two hangers 201 have the same structure, each hanger 201 is composed of a horizontal support bar 204, a V-shaped clamping block 205 and a locking bolt 206 which are integrally connected, one end of the horizontal support bar 204 is connected with the vertical support bar 203, the other end of the horizontal support bar 204 is connected with the outer side wall of one side of the V-shaped clamping block 205, the V-shaped clamping block 205 is provided with a V-shaped groove 207, the V-shaped clamping block 205 is integrally provided with a closing plate 208 which closes the notch of the V-shaped groove 207, the locking bolt 206 is horizontally screwed on the closing plate 208, the tail end of the locking bolt 206 extends into the V-shaped groove 207 and faces the sharp groove bottom of the V-shaped groove 207, the upper portion of the screw head 300 extends into the V-shaped groove 207 from the end 202 of the screw head 300, and then the locking bolt 206 is screwed so that the tail end of the locking bolt 206 pushes the upper portion of the screw head 300 and the radial surface of the upper portion of the screw head 300 is in line contact with both groove walls of the V-shaped groove 207. The V-shaped clamping block 205 is provided with a V-shaped groove 207, the V-shaped groove 207 can accommodate the upper part of the screw head 300, when the radial surface of the upper part of the screw head 300 is in line contact with both groove walls of the V-shaped groove 207, the screw head 300 is vertical without deflection, and can not fall off after being clamped; the locking bolt 206 arranged on the sealing plate 208 is used for pushing the upper part of the screw head 300, after the screw head 300 is clamped, the radial surface of the upper part of the screw head 300 is in line contact with the two groove walls of the V-shaped groove 207, and the locking bolt 206 is in point contact with the upper part of the screw head 300, namely, two lines and one point, so that the clamping is stable and firm, the electric conductivity is greatly improved, and the electroplating efficiency and the electroplating quality are guaranteed; during operation, an operator only needs to screw the locking bolt 206, even if the upper part of the screw head 300 is obliquely placed into the V-shaped groove 207, the screw head 300 can be automatically corrected by screwing the locking bolt 206, so that the screw head 300 is inevitably vertical without the phenomenon of deflection, the operation requirement is low, the operator is not required to have operation skill, and the labor intensity is low. The hanger 201 can be used for clamping a plurality of screw heads 300 with different sizes in a certain range, has wide application range, and is also suitable for the screw head 300 with the ultra-large size and the screw head 300 with the ultra-small size by redesigning the angle of the V-shaped groove 207.

In this embodiment, a guide block 209 is provided on the outer side wall of the sealing plate 208, and the locking bolt 206 is screwed with the guide block 209. The guide block 209 is arranged to stabilize the horizontal screwing or unscrewing process of the locking bolt 206, and simultaneously, the locking bolt 206 can better abut against the upper part of the screw head 300, so that the screw head 300 can be clamped more stably.

In this embodiment, the exposed portion of the locking bolt 206 on the outside of the sealing plate 208 is covered with an insulating cover 210 for preventing power loss and preventing the locking bolt 206 from being chrome-plated.

In the present invention, the hanger 201 does not have to adopt the above-mentioned structure, and may also directly adopt a shaft clamping hanger in the conventional electroplating conductive hanger shown in fig. 1, or adopt another clamping structure which can clamp a shaft part and is conductive.

Claims

1. The utility model provides a pull general hanger of formula of drawing electricity for screw rod head electroplating process, includes hanger unit, its characterized in that hanger unit include two mirror symmetry distribution's hanger, two the relative one end of hanger be the screw rod head and stretch into the end, two the hanger on respectively the clamping screw rod head make two screw rod head mirror symmetry arrange, the pointed head part of two screw rod heads just faces and is close to.

2. The counter-pulling electric-type universal hanger used in the screw head electroplating process according to claim 1, wherein the hanger unit further comprises vertical support rods, and the two hangers are connected to the same side of the vertical support rods and are distributed in a mirror symmetry manner from top to bottom.

3. The opposite-pull-type general hanger used in the screw head electroplating process according to claim 2, wherein the two hangers have the same structure, each hanger comprises a horizontal support rod, a V-shaped clamping block and a locking bolt which are integrally connected, one end of each horizontal support rod is connected with the vertical support rod, the other end of each horizontal support rod is connected with the outer side wall of one side of the V-shaped clamping block, the V-shaped clamping block is provided with a V-shaped groove, the V-shaped clamping block is integrally provided with a sealing plate for sealing the notch of the V-shaped groove, the locking bolt is horizontally screwed on the sealing plate, the tail end of the locking bolt extends into the V-shaped groove and is just opposite to the sharp groove bottom of the V-shaped groove, the upper part of the screw head extends into the V-shaped groove from the screw head extending end, and then the locking bolt is screwed to enable the tail end of the locking bolt to push the upper part of the screw head so as to enable the screw head to further enable the screw head to be pushed by the tail end of the screw The radial surface of the upper part of the rod head is in line contact with both groove walls of the V-shaped groove.

4. The counter-pulling electric universal hanger for the screw head electroplating process according to claim 3, wherein the outer side wall of the sealing plate is provided with a guide block, and the locking bolt is in threaded connection with the guide block.

5. The counter-pull type universal hanger for screw head electroplating process according to claim 3 or 4, wherein the exposed part of the locking bolt on the outer side of the sealing plate is covered with an insulating cover for preventing electric energy loss and preventing the locking bolt from being chrome-plated.