Drying machine for relay contact

Abstract

The utility model discloses a drying machine for relay contacts in the technical field of drying machines, and the drying machine comprises two protection plates, a plurality of vibration boxes and a plurality of rolling shafts, the two protection plates are parallel to each other, the rolling shafts are located between the two protection plates, and the two ends of each rolling shaft are rotationally connected to the side walls of the two protection plates correspondingly; the multiple rolling shafts are fixedly connected with drivers for driving the rolling shafts to rotate, the multiple vibration boxes are slidably connected to the upper portions of the multiple rolling shafts, vibration mechanisms capable of vibrating up and down are arranged in the vibration boxes, a drying box is arranged in the middle of the two protection plates, and the length of the drying box is smaller than that of the protection plates. The drying box is fixedly connected with the top ends of the two protection plates, openings allowing the drying box to go in and out are formed in the two opposite sides of the drying box, and a plurality of air heaters are arranged on the side wall of the drying box. The device can vibrate the contact in a small amplitude, so that the bottom of the contact is in contact with hot air, the contact is fully dried, the drying machine can be directly connected into a production line, and carrying of the contact is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of dryer technology, and specifically relates to a dryer for relay contacts. Background Technology

[0002] Contacts are commonly used components in the electrical industry, primarily in relays, temperature controllers, and other electronic control parts. Most current contacts are made of silver alloy. The production process of silver alloy involves heating, cooling, and lubrication, resulting in slightly damp surfaces on the manufactured contacts. Therefore, silver alloy contacts must be dried before installation to prevent damage and interference to the relay. However, due to the small size of silver alloy contacts and the large production volume, and because of silver's melting point, they cannot be dried at high temperatures. Currently, there is no satisfactory solution for rapidly drying large quantities of silver alloy contacts without altering their performance, nor for quickly collecting the dried contacts.

[0003] An existing patent with publication number "CN 203132284 U" discloses "a vibratory dryer with silver alloy contacts". The device includes a lower body, an annular vibrating chamber, and a blower. Several buffer springs are vertically and evenly installed on the upper end of the lower body. The annular vibrating chamber is connected to the upper end of the buffer springs. A vibrator is installed in the middle of the lower body below the buffer springs. The vibration axis of the vibrator is connected upward to the annular vibrating chamber. A sealing cover is arranged on the upper end of the annular vibrating chamber. A fan mounting bracket is arranged on one side of the lower body. A blower is installed on the upper end of the fan mounting bracket. A heater is connected to one side of the blower. One end of the heater is connected to the sealing cover through a ventilation hose. The device places all the contacts into a ring-shaped vibrating chamber, causing them to bounce back and forth within the chamber. A blower then blows hot air into the chamber to dry the contacts. However, since the direction of the bounce is uncontrollable, the contacts bounce randomly. As a result, the contacts with different directions of motion collide frequently with each other during drying, which could potentially damage the outer surface of the contacts, causing scratches and affecting their appearance. Utility Model Content

[0004] The present invention aims to provide a dryer for relay contacts to solve the problem that drying contacts in the prior art leads to frequent collisions and scratches.

[0005] This solution provides a dryer for relay contacts, comprising two protective plates, multiple vibrating boxes, and multiple rollers. The two protective plates are parallel to each other, and the multiple rollers are located between the two protective plates, with both ends of the rollers rotatably connected to the side walls of the two protective plates. Each roller is fixedly connected to a driver that drives its rotation. The multiple vibrating boxes can be placed above the multiple rollers and can move horizontally in the rolling direction under the rotation of the rollers. The vibrating boxes are equipped with a vibration mechanism that can vibrate up and down. A drying box is located in the middle of the two protective plates, and the length of the drying box is shorter than that of the protective plates. The drying box is fixedly connected to the top of the two protective plates. Openings for the vibrating boxes to enter and exit are provided on opposite sides of the drying box. Multiple hot air blowers are provided on the side walls of the drying box.

[0006] The working principle of this solution is as follows: When in use, place the contacts inside the vibratory box, then place the vibratory box with the contacts on top of the rollers at one end. Start the roller driver to drive multiple rollers to rotate together, thereby causing the vibratory box at one end to move horizontally along the rotation direction of the rollers and slowly enter the drying box. At the same time, multiple hot air blowers in the drying box are turned on simultaneously to blow hot air into the drying box. After the vibratory box enters the drying box, the vibration mechanism is started to drive the inside of the vibratory box to vibrate up and down, causing the contacts inside the vibratory box to jump slightly. Under the drive of the rollers, the vibratory box slowly moves to the other outlet of the drying box. After the contacts are dried, the vibratory box leaves the drying box, and the operator can pick up the vibratory box and pour out the contacts inside.

[0007] Beneficial effects: 1. This drying device can be directly installed at the end of the production line where drying is required. The contacts produced in the previous step can be placed in the vibrating box, and then the vibrating box can be placed on the roller to send them into the drying box for drying, avoiding the need to move the contacts back and forth.

[0008] 2. The vibration amplitude of the vibration box is up and down, which can effectively expose the area below the contact point to the air and avoid excessive collision between the contact points caused by the irregular jumping of the contact points, resulting in scratches on the contact points;

[0009] 3. Multiple vibration chambers can be set up to simultaneously place multiple batches of contacts on the rollers for drying. After drying, the contacts can be poured out directly, and then the next batch of contacts to be dried can be put into the vibration chamber for cyclic drying. The vibration chambers facilitate the handling of contacts and make it easy to dry the next batch of contacts.

[0010] Furthermore, each of the two opposite openings of the drying chamber is equipped with a sealing door. The two sealing doors are slidably connected to the inner wall of the drying chamber, and each sealing door is fixedly connected to a driver that moves it up and down. When multiple vibrating chambers enter the drying chamber, to prevent the hot air inside the drying chamber from escaping and affecting the drying speed of the contacts, the sealing doors can be activated after the vibrating chambers drive the contacts into the drying chamber, closing the openings of the drying chamber and preventing hot air from escaping.

[0011] Furthermore, each of the two openings of the drying oven is equipped with a baffle at its bottom. The two ends of the baffle are fixedly connected to the side walls of the two baffles, and the top of the baffle is flush with the highest point of the roller. When the sealing door contacts the baffle, it seals the opening of the drying oven. The baffle can further seal the opening of the drying oven without affecting the rotation of the roller, preventing hot air from leaking out from the bottom of the sealing door.

[0012] Furthermore, the vibratory chamber has multiple ventilation openings on its side walls, and a placement plate is located in the middle of the vibratory chamber. The placement plate is parallel to the bottom of the vibratory chamber, and the vibration mechanism is located between the placement plate and the bottom of the vibratory chamber. The ventilation openings allow hot air to enter the vibratory chamber more effectively to dry the contacts.

[0013] Furthermore, the vibration mechanism includes a spring and multiple cams. One end of the spring is fixedly connected to the bottom of the vibration box, and the other end is fixedly connected to the bottom of the placement plate. The multiple cams are located at the bottom of the placement plate and are rotatably connected to the inner wall of the vibration box. Each cam is fixedly connected to a driver that drives its rotation. In use, the cam driver is activated, causing the cam to rotate. The placement plate then moves up and down with the rotation of the cam. Because the bottom of the placement plate is fixedly connected to the spring, the spring extends and retracts as the placement plate rises and falls, further assisting the up and down movement of the placement plate.

[0014] Furthermore, the placement plate is grid-shaped, and the grid size is smaller than the contact point. The grid-shaped placement plate allows hot air to effectively reach the bottom of the contact point, facilitating contact drying. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a dryer for relay contacts according to this utility model;

[0016] Figure 2 This is a schematic diagram of the vibration box structure of a dryer for relay contacts according to this utility model;

[0017] Figure 3 for Figure 2 A sectional view. Detailed Implementation

[0018] The following detailed description illustrates the specific implementation method:

[0019] The reference numerals in the accompanying drawings include: support leg 1, guard plate 2, vibration box 3, vent 31, placement plate 32, cam 33, spring 34, drying box 4, hot air blower 5, sealing door 6, roller 7, baffle 8.

[0020] The basic implementation examples are as follows: Figures 1-3 As shown: A dryer for relay contacts includes two protective plates 2, multiple vibrating chambers 3, and multiple rollers 7. The two protective plates 2 are parallel to each other, and each protective plate 2 has two support legs 1 fixedly connected to its bottom. The multiple rollers 7 are located between the two protective plates 2 and are perpendicular to each other. The two ends of the multiple rollers 7 are rotatably connected to the side walls of the two protective plates 2, and each multiple roller 7 is fixedly connected to a driver. A drying chamber 4 is located above the two protective plates 2. The length of the drying chamber 4 is shorter than the length of the protective plates 2. The opposite sides of the drying chamber 4 are fixedly connected to... The top of the two protective plates 2 and the two side walls of the drying chamber 4 parallel to the roller 7 are provided with openings for the vibration box 3 to enter and exit. The interior of the two side walls of the drying chamber 4 is slidably connected with a sealing door 6. The sealing door 6 is fixedly connected with a driver that drives its lifting and lowering. The sealing door 6 can seal the opening of the drying chamber 4. The bottom of the two sealing doors 6 is provided with a baffle 8. The baffle 8 is perpendicular to the protective plate 2. The two ends of the baffle 8 are fixedly connected to the side walls of the two protective plates 2 respectively. The top of the two baffles 8 is flush with the highest point of the roller 7. The side walls of the drying chamber 4 are provided with multiple hot air blowers 5.

[0021] The vibration box 3 is detachably connected to the top of the roller 7, and the vibration box 3 can move horizontally with the rotation direction of the roller 7. The vibration box 3 has a placement plate 32 inside, which is parallel to the bottom of the vibration box 3 and is slidably connected to the inside of the vibration box 3. Multiple ventilation holes 31 are opened on opposite sides of the vibration box 3, which are located below and above the placement plate 32 respectively. The placement plate 32 is grid-shaped, and the grid of the placement plate 32 is smaller than the size of the contact point. A vibration mechanism is provided between the placement plate 32 and the bottom of the vibration box 3. The vibration mechanism includes two springs 34 and four cams 33. One end of each of the two springs 34 is fixedly connected to the inner bottom of the vibration box 3, and the other end is fixedly connected to the bottom of the placement plate 32. Two cams 33 are rotatably connected to the inner wall of the front side of the vibration box 3, and the other two cams 33 are rotatably connected to the inner wall of the rear side of the vibration box 3. All four cams 33 are connected to the bottom of the placement plate 32, and all four cams 33 are fixedly connected to a motor.

[0022] The specific implementation process is as follows: In use, multiple contacts are placed on the top of the placement plate 32. Then, the vibrating box 3 with the contacts is placed above the roller 7 on the left side of the protective plate 2. The multiple rollers 7 rotate to the right together, causing the vibrating box 3 to slowly move to the drying chamber 4 on the right. At this time, the sealing door 6 of the drying chamber 4 opens. After the vibrating box 3 enters the drying chamber 4, multiple hot air blowers 5 are started to blow hot air into the vibrating box 3. At the same time, the motor of the cam 33 is started. When the four cams 33 rotate, they can drive the placement plate 32 to move up and down. At this time, the spring 34 is stretched and then reset, which can effectively drive the placement plate 32 to rise and fall smoothly, thereby vibrating the contacts above the placement plate 32. Hot air can enter the ventilation opening 31 on the side wall of the vibration box 3 and enter the area below and above the placement plate 32. The hot air from below dries the bottom of the mesh drying contacts on the placement plate 32 from all directions. The contacts can move to the left while drying. After the vibration box 3 is filled in the drying box 4, the sealing doors 6 at both ends can be closed to allow the hot air to enter the vibration box 3 more concentratedly for drying. After drying is completed, the sealing doors 6 on both sides can be opened to allow the roller 7 to move the vibration box 3 to the right until the vibration box 3 is removed from the drying box 4. The operator can then remove the vibration box 3, empty the contacts inside, and put the vibration box 3 back at the inlet of the device for reuse.

[0023] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A dryer for relay contacts, characterized in that: The device includes two protective plates, multiple vibration chambers, and multiple rollers. The two protective plates are parallel to each other, and the multiple rollers are located between the two protective plates. Both ends of the multiple rollers are rotatably connected to the side walls of the two protective plates. Each roller is fixedly connected to a driver that drives its rotation. The multiple vibration chambers can be placed above the multiple rollers and can move horizontally in the rolling direction under the rotation of the rollers. The vibration chambers are equipped with a vibration mechanism that can vibrate up and down. A drying chamber is located in the middle of the two protective plates, and the length of the drying chamber is shorter than that of the protective plates. The drying chamber is fixedly connected to the top of the two protective plates. Openings for the vibration chambers to enter and exit are opened on opposite sides of the drying chamber. Multiple hot air blowers are provided on the side walls of the drying chamber.

2. A dryer for relay contacts according to claim 1, characterized in that: The drying oven has two sealing doors at its two opposite openings. The two sealing doors are slidably connected to the inner wall of the drying oven, and each sealing door is fixedly connected to a driver that drives its lifting and lowering.

3. A dryer for relay contacts according to claim 2, characterized in that: The bottom of each of the two openings of the drying oven is provided with a baffle. The two ends of the baffle are fixedly connected to the side walls of the two baffles respectively, and the top of the baffle is flush with the highest point of the roller. When the sealing door contacts the baffle, it seals the opening of the drying oven.

4. A dryer for relay contacts according to claim 3, characterized in that: The vibration box has multiple ventilation openings on its side wall, and a placement plate is provided in the middle of the vibration box. The placement plate is parallel to the bottom of the vibration box, and the vibration mechanism is located between the placement plate and the bottom of the vibration box.

5. A dryer for relay contacts according to claim 4, characterized in that: The vibration mechanism is provided with a spring and multiple cams. One end of the spring is fixedly connected to the bottom of the vibration box, and the other end is fixedly connected to the bottom of the placement plate. The multiple cams are located at the bottom of the placement plate and are rotatably connected to the inner side wall of the vibration box. Each of the multiple cams is fixedly connected to a driver that drives its rotation.

6. A dryer for relay contacts according to claim 5, characterized in that: The placement plate is grid-shaped, and the grid size of the placement plate is smaller than the contact point size.

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