Plastic dipping equipment for wiring terminal

Abstract

The invention relates to the technical field of wiring terminal processing, and discloses wiring terminal plastic dipping equipment which comprises a heating device and a plastic dipping device, and the heating device comprises a heating table and a heating wire arranged on the heating table; the plastic dipping device comprises a workbench, a containing box arranged on the workbench, a lifting frame arranged on the workbench, a jig arranged on the lifting frame and a control box arranged on the workbench, the control box is used for controlling the lifting frame to ascend and descend, the jig is used for clamping a wiring terminal, liquid plastic is placed in the containing box, the upper side of the containing box is provided with an opening, and the control box is used for controlling the lifting frame to ascend and descend. The lifting frame is located above the containing box. According to the device, the wiring terminals are automatically immersed in the liquid plastic through the lifting frame, it is guaranteed that the depths of the wiring terminals of the same type immersed in the liquid plastic each time are consistent, and therefore the uniformity of the plastic dipping quality is improved, and the effect of saving the labor cost is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of terminal processing, in particular to a terminal plastic dipping device. BACKGROUND

[0002] The terminal is a cable accessory product for realizing electrical connection, and the terminal is usually provided with a terminal hole for wiring at one end and an insulation layer at the other end.

[0003] In the related art, the insulation layer is formed on the terminal by using the plastic dipping method, and the terminal is clamped by using a specific jig during plastic dipping, and then the terminal is heated to a specified temperature, and then the terminal is immersed in liquid plastic, the liquid plastic is solidified and coated on the surface of the terminal when heated, and a hard insulation layer is formed after cooling, which will not melt when heated again, but will only decompose.

[0004] However, when the worker immerses the terminal in the liquid plastic through the jig, the length of the terminal immersed in the liquid plastic is difficult to accurately control, so that the end of the terminal that does not need to be dipped is also coated with an insulation layer, resulting in uneven quality of the terminal, and thus needs to be improved. SUMMARY

[0005] In order to improve the plastic dipping quality of the terminal, the application provides a terminal plastic dipping device.

[0006] The terminal plastic dipping device provided by the application adopts the following technical scheme: A terminal plastic dipping device, comprising a heating device and a plastic dipping device, the heating device comprising a heating table and a heating wire arranged on the heating table, the plastic dipping device comprising a workbench, a containing box arranged on the workbench, a lifting frame arranged on the workbench, a jig arranged on the lifting frame and a control box arranged on the workbench, the control box being used for controlling the lifting of the lifting frame, the jig being used for clamping the terminal, the containing box being provided with liquid plastic and being open at the upper side, and the lifting frame being located above the containing box.

[0007] By adopting the technical scheme, when the terminal is immersed in plastic, the terminal is first fixed on the jig, then the jig is moved to the heating table for heating, after the terminal is heated to a specified temperature, the jig is taken out from the heating table, then the jig is placed on the lifting frame, a switch on the control box is started, and parameters such as immersion depth and immersion time are set, the lifting frame moves to the containing box under the control of the control box, so as to drive the jig and the terminal to move to the containing box, so that the liquid plastic is solidified on the surface of the terminal. By controlling the lifting frame to accurately adjust the descending height, the terminal only needs to be immersed in the liquid plastic to cover the insulation layer, compared with manual immersion, the length and time of the terminal immersed in the liquid plastic are consistent each time, the possibility of covering the terminal hole end is reduced, the product consistency is improved, and the immersion quality of the terminal is improved.

[0008] Optionally, the jig comprises two oppositely arranged clamping pieces, a connecting plate arranged between the two clamping pieces, a mounting column arranged on the connecting plate, and two lifting plates arranged on the mounting column, and the lifting frame comprises two supporting rods, and the two lifting plates are arranged on the two supporting rods respectively, when the jig clamps the terminal, the clamping pieces are clamped into the terminal holes.

[0009] By adopting the technical scheme, when the terminal is immersed in plastic, the terminal is first fixed on the jig, then the jig is moved to the heating table for heating, after the terminal is heated to a specified temperature, the jig is taken out from the heating table, then the jig is placed on the lifting frame, a switch on the control box is started, and parameters such as immersion depth and immersion time are set, the lifting frame moves to the containing box under the control of the control box, so as to drive the jig and the terminal to move to the containing box, so that the liquid plastic is solidified on the surface of the terminal. By controlling the lifting frame to accurately adjust the descending height, the terminal only needs to be immersed in the liquid plastic to cover the insulation layer, compared with manual immersion, the length and time of the terminal immersed in the liquid plastic are consistent each time, the possibility of covering the terminal hole end is reduced, the product consistency is improved, and the immersion quality of the terminal is improved.

[0010] Optionally, the connecting plate is provided with a sliding hole, and an adjusting bolt is slidably arranged in the sliding hole, the clamping piece comprises a clamping portion for clamping the terminal and a mounting portion connected to the connecting plate, and the mounting portion is threadedly connected with the adjusting bolt.

[0011] By adopting the technical scheme, when the terminal is immersed in plastic, the terminal is first fixed on the jig, then the jig is moved to the heating table for heating, after the terminal is heated to a specified temperature, the jig is taken out from the heating table, then the jig is placed on the lifting frame, a switch on the control box is started, and parameters such as immersion depth and immersion time are set, the lifting frame moves to the containing box under the control of the control box, so as to drive the jig and the terminal to move to the containing box, so that the liquid plastic is solidified on the surface of the terminal. By controlling the lifting frame to accurately adjust the descending height, the terminal only needs to be immersed in the liquid plastic to cover the insulation layer, compared with manual immersion, the length and time of the terminal immersed in the liquid plastic are consistent each time, the possibility of covering the terminal hole end is reduced, the product consistency is improved, and the immersion quality of the terminal is improved.

[0012] Optionally, the cooling rack is further provided with a cooling box with an upper opening, the cooling box is a cuboid, the length of the cooling box is less than the maximum distance between the two lifting plates, and the length of the cooling box is greater than the length of the clamping piece.

[0013] By adopting the above technical scheme, after the terminal is completed with plastic dipping, the jig can be removed from the support rod, and then the lifting plate is placed on the side wall of the cooling box, so that the terminal is located in the cooling box, reducing the possibility of liquid plastic on the terminal not completely solidified falling on the ground or colliding and deforming, ensuring the smoothness of the plastic dipping surface, and after natural cooling, the terminal can be removed from the clamping piece.

[0014] Optionally, a rotating mechanism is arranged between the workbench and the cooling rack, the rotating mechanism comprises a rotating table, a fixed plate fixedly arranged on the rotating table, a rotating motor arranged on the rotating table, a rotating column slidingly arranged on the output shaft of the rotating motor, a fixed hole for accommodating the lifting plate is arranged on the rotating column, a rotating groove for accommodating the fixed plate is further arranged on the rotating column, the rotating groove is in communication with the fixed hole, a ejection block is slidingly arranged on the fixed plate, an ejection spring is arranged on the ejection block, the ejection spring has a tendency to drive the ejection block to extend into the fixed hole, a guide slope is arranged on the ejection block, the guide slope is used to guide the ejection block to return to the rotating groove, and the rotating motor is electrically connected with the control box.

[0015] By adopting the above technical scheme, when the jig is placed on the support rod, the lifting plate needs to be extended into the fixed hole at the same time, and then after the terminal is completed with plastic dipping, the terminal will be lifted under the action of the support rod, and at the same time the lifting plate drives the rotating column to slide on the output shaft of the rotating motor, and then the control box controls the rotating motor to rotate, thereby driving the rotating column to rotate relative to the fixed plate, thereby driving the jig to rotate to the cooling rack, when the jig rotates to the cooling rack, the rotating column rotates to a position where the fixed hole is opposite to the ejection block, and then the ejection block extends into the fixed hole under the action of the ejection spring, thereby pushing the lifting plate out of the fixed hole, so as to separate the jig from the rotating column. Then the control box controls the rotating motor to reverse, thereby driving the rotating column to start reversing, at this time the groove wall of the rotating groove abuts against the guide slope, and then in the process of continuous reversing of the rotating column, the ejection block is automatically pushed into the rotating groove, so that the ejection block is automatically reset, facilitating the ejection block to push the lifting plate out of the fixed hole again when the jig is transferred next time. By rotating the mechanism to transfer the jig to the cooling rack, compared with manually transferring the jig by workers, manpower is saved, manual operation demand is reduced, thereby reducing the risk of workers being scalded by the residual heat of the terminal after heating, safety is improved, and the possibility of the terminal being bumped by workers during manual transfer is reduced, so that the liquid plastic not completely solidified on the terminal is not easy to deform, thereby further ensuring the plastic dipping quality of the terminal.

[0016] Optionally, the rotating column is in a cylindrical shape, an axial sidewall of the rotating column is provided with a fixing cylinder, the fixing cylinder is in communication with the fixing hole, a sidewall of the fixing cylinder is rotationally provided with a limiting plate, an axis of the limiting plate is provided with a reset torsion spring, and the reset torsion spring has a tendency to drive the limiting plate to move towards the lifting plate.

[0017] By adopting the above technical scheme, when the ejection block pushes the lifting plate out of the fixing hole, the jig is placed on the cooling rack, and then the rotating column is reversed under the action of the rotating motor, the lifting plate rotates the limiting plate away from the lifting plate, so that the reset torsion spring is compressed. Then, when the lifting plate is completely removed from the fixing cylinder, the limiting plate is automatically reset under the action of the reset torsion spring, so that the next time the lifting plate is inserted into the fixing hole, the fixing cylinder can further limit the lifting plate, thereby making the stability of the jig during the rotation of the rotating column higher.

[0018] Optionally, the cooling rack is provided with a transmission belt, a rotating shaft is arranged in the transmission belt, a first straight bevel gear is arranged on the circumference of the rotating shaft, a driving column is further rotationally arranged on the rotating table, a second straight bevel gear is arranged on the driving column, the second straight bevel gear is engaged with the first straight bevel gear, a driven disc is arranged on the output shaft of the rotating motor, a one-way bearing is arranged between the driven disc and the output shaft of the rotating motor, a belt is sleeved on the driven disc, one end of the belt is sleeved on the driven disc, and the other end of the belt is sleeved on the driving column.

[0019] By adopting the above technical scheme, when the rotating motor drives the rotating column to rotate, the driven disc and the belt are also rotated, thereby driving the driving column, the second straight bevel gear, the first straight bevel gear and the rotating shaft to rotate, thereby driving the transmission belt to rotate, and at the same time, the rotating column transfers the jig to the transmission belt; when the rotating motor drives the rotating column to reverse, since the one-way bearing is arranged between the driven disc and the output shaft of the rotating motor, the rotating motor will not drive the belt to reverse when it reverses, so the transmission belt will not reverse, which facilitates the transmission belt to continue to rotate when the rotating column is rotated next time, thereby transporting the jig located on the transmission belt to the end of the transmission belt away from the rotating column, facilitating workers to take down the jig at the end of the transmission belt which has been cooled, and at the same time, reserving a position for the new jig on the transmission belt.

[0020] Optionally, the cooling rack is further provided with a hair dryer, the hair dryer is electrically connected with a temperature sensor, and the temperature sensor is electrically connected with the control box.

[0021] By adopting the technical scheme, when the temperature sensor detects that the ambient temperature is too low, the temperature sensor sends a starting signal to the control box, and then the control box controls the heater to start, so as to deliver warm air to the surface of the terminal, so that the insulation layer of the terminal is not easy to be cracked due to uneven stress before the insulation layer is cooled and completely cured, the integrity of the insulation layer of the terminal is ensured, and the plastic dipping quality is further improved.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. By controlling the control box to control the lifting frame to rise or fall, the jig drives the terminal to be immersed in the liquid plastic, which ensures the uniformity of the terminal dipping quality compared with manual immersion of the terminal by workers; 2. The clamping pieces of the jig are directly clamped into the terminal holes, which does not produce clamping force on the terminal hole end, so that the terminal is not easy to be deformed by stress, and the distance between the two clamping pieces is adjustable, so that the jig has high flexibility; 3. The jig is transferred to the transmission belt by the rotating mechanism, and is transferred to the upper side of the cooling box by the transmission belt, which reduces manual operation and saves labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of embodiment 1 of the present application.

[0024] Figure 2 is a schematic diagram of the structure of the heating device in embodiment 1 of the present application.

[0025] Figure 3 is a schematic diagram of the structure of the jig in embodiment 1 of the present application.

[0026] Figure 4 is a schematic diagram of the overall structure of embodiment 2 of the present application.

[0027] Figure 5 is a schematic diagram of the cross-sectional structure of embodiment 2 of the present application.

[0028] Figure 6 is Figure 5 an enlarged view of position A in FIG. 6.

[0029] Figure 7 is a schematic diagram of the local cross-sectional structure of the ejector block in embodiment 2 of the present application.

[0030] Explanation of reference signs: 1, heating device; 11, heating table; 12, heating wire; 2, plastic dipping device; 21, workbench; 22, containing box; 23, lifting frame; 231, support rod; 24, jig; 241, clamping piece; 242, connecting plate; 245, mounting column; 246, lifting plate; 247, clamping part; 248, mounting part; 249, sliding hole; 25, control box; 3, cooling frame; 31, cooling box; 32, transmission belt; 321, rotating shaft; 322, first straight bevel gear; 33, hair dryer; 331, temperature sensor; 4, adjusting bolt; 5, rotating mechanism; 51, rotating table; 511, driving column; 512, belt; 513, second straight bevel gear; 52, fixed plate; 521, sliding groove; 522, ejection block; 523, ejection spring; 524, guide slope; 53, rotating motor; 531, driven disc; 532, one-way bearing; 54, rotating column; 541, fixed hole; 542, rotating groove; 55, buffer spring; 6, fixed cylinder; 61, limiting plate; 62, reset torsional spring. DETAILED DESCRIPTION

[0031] The following will be described in detail in combination with the accompanying drawings. Figures 1-7 The application is further described in detail.

[0032] The application discloses a plastic dipping device for a terminal.

[0033] Referring to Figure 1 A plastic dipping device for a terminal comprises a heating device 1, a plastic dipping device 2 and a cooling frame 3, wherein the heating device 1 is used for heating the terminal, the plastic dipping device 2 is used for dipping the heated terminal into liquid plastic for plastic dipping, and the two are used in cooperation to effectively complete the plastic dipping of the terminal.

[0034] Referring to Figure 1 and Figure 2 The heating device 1 comprises a heating table 11 and a heating wire 12 arranged on the heating table 11. The heating table 11 serves as a support and a carrier, and is usually made of a material with certain strength and heat resistance, such as metal, for example, stainless steel. The heating wire 12 is a key component for heating, which can be made of nickel-chromium alloy wire and the like, and has high resistivity and good high-temperature resistance. The heating wire 12 is connected with a power supply and generates heat, thereby heating the terminal placed on the heating table 11 to a specified temperature.

[0035] Referring to Figure 1The dipping device 2 comprises a workbench 21, a containing box 22 arranged on the workbench 21, a lifting frame 23 arranged on the workbench 21, a jig 24 arranged on the lifting frame 23, and a control box 25 arranged on the workbench 21. The workbench 21 provides a stable support platform for the whole dipping device 2. The containing box 22 is used for placing liquid plastic and is open at the top, so as to facilitate the terminal to be dipped into the liquid plastic. The containing box 22 is usually made of corrosion-resistant materials, such as plastic or stainless steel, to prevent the liquid plastic from corroding the containing box 22.

[0036] With reference to Figure 1 The lifting frame 23 is used to drive the jig 24 and the terminal to move up and down. The lifting frame 23 is arranged above the containing box 22 and comprises two support rods 231 and the like. The support rods 231 are usually metal rods and have high strength and stability. The jig 24 is used to fix the terminal. The control box 25 is used to control the lifting of the lifting frame 23.

[0037] With reference to Figure 3 The jig 24 comprises two oppositely arranged clamping pieces 241, a connecting plate 242 arranged between the two clamping pieces 241, a mounting column 245 arranged on the connecting plate 242, and two lifting plates 246 arranged on the mounting column 245. The clamping piece 241 is a component that directly contacts and fixes the terminal. The clamping piece 241 is usually made of materials with certain elasticity and hardness, such as spring steel.

[0038] With reference to Figure 1 and Figure 3 When the jig 24 clamps the terminal, the clamping piece 241 is clamped into the terminal hole of the terminal, so as to ensure the stability of the terminal during the dipping process. The connecting plate 242 serves to connect the two clamping pieces 241. The connecting plate 242 can be plate-shaped and can be made of the same material as the clamping piece 241. The mounting column 245 is used to mount the lifting plate 246. The two lifting plates 246 are arranged on the two support rods 231 of the lifting frame 23, respectively. The lifting of the jig 24 and the terminal is driven by the lifting of the lifting frame 23.

[0039] With reference to Figure 3 The clamping piece 241 comprises a clamping portion 247 used to fix the terminal and a mounting portion 248 connected to the connecting plate 242. The connecting plate 242 is provided with a sliding hole 249. An adjusting bolt 4 is slidably arranged in the sliding hole 249. The mounting portion 248 is threadedly connected to the adjusting bolt 4. The adjusting bolt 4 can slide in the sliding hole 249. By sliding the adjusting bolt 4, the distance between the two clamping pieces 241 can be adjusted, so as to adapt to terminals of different sizes. This adjustable structure increases the versatility and applicability of the jig 24.

[0040] With reference to Figure 1The cooling frame 3 is provided with a cooling box 31 with an upper opening. The cooling box 31 is a cuboid, the length of the cooling box 31 is less than the maximum distance between the two lifting plates 246, and the length of the cooling box 31 is greater than the length of the clamping piece 241. The cooling box 31 is used for cooling the terminal, so that the liquid plastic on the surface of the terminal is quickly solidified to form an insulating layer. The cooling box 31 can contain a cooling liquid such as water, which can absorb the heat of the terminal and accelerate the cooling speed.

[0041] The implementation principle of the terminal plastic dipping equipment in the embodiment of the application is as follows: when the terminal is dipped in plastic, the terminal is first clamped on the clamping piece 241 of the jig 24, then the jig 24 is placed on the heating table 11, the terminal is heated to a specified temperature by the heating wire 12, then the jig 24 is placed on the support rod 231, and the heated terminal is dipped in the liquid plastic by the lifting frame 23 to realize automatic dipping of the terminal. Compared with manual dipping of the terminal by workers, the problem that the dipping length of the terminal is difficult to accurately control is solved, and the product quality and production efficiency are improved.

[0042] Embodiment 2 With reference to Figure 4 and Figure 5 The difference between the embodiment and the embodiment 1 is that the rotating mechanism 5 is arranged between the workbench 21 and the cooling frame 3. The rotating mechanism 5 can realize the transfer of the terminal between the plastic dipping device 2 and the cooling frame 3, thereby reducing the labor cost.

[0043] With reference to Figure 4 and Figure 5 The rotating mechanism 5 comprises a rotating table 51, a fixed plate 52, a rotating motor 53 arranged on the rotating table 51, and a rotating column 54 arranged on the output shaft of the rotating motor 53. The fixed plate 52 is fixedly arranged on the rotating table 51, the rotating column 54 is rotatably arranged on the fixed plate 52, the rotating column 54 is slidably arranged on the output shaft of the rotating motor 53, and the rotating motor 53 can drive the rotating column 54 to rotate.

[0044] With reference to Figure 5 A buffer spring 55 is arranged between the fixed plate 52 and the rotating column 54. The buffer spring 55 is sleeved on the output shaft of the rotating motor 53, and is used for buffering the pressure applied to the rotating column 54 after the jig 24 is moved out of the support rod 231, so that the rotating column 54 is not easy to suddenly fall, and the jig 24 is more stable when rotating.

[0045] With reference to Figure 5 The rotating column 54 is provided with a fixing hole 541 for accommodating the lifting plate 246, and is also provided with a rotating groove 542 for accommodating the fixed plate 52. The rotating groove 542 is in communication with the fixing hole 541, and the rotating motor 53 is electrically connected with the control box 25.

[0046] With reference to Figure 6 and Figure 7 , the fixed plate 52 is provided with a sliding groove 521, and the sliding groove 521 is slidably provided with an ejection block 522. The ejection block 522 is provided with an ejection spring 523, and the ejection spring 523 has a tendency to drive the ejection block 522 to extend out of the sliding groove 521. The ejection block 522 is provided with a guide slope 524, and the guide slope 524 is used to guide the ejection block 522 back into the sliding groove 521.

[0047] With reference to Figure 6 and Figure 7 , the rotating column 54 is cylindrical, and the axial side wall of the rotating column 54 is provided with a fixed cylinder 6. The fixed cylinder 6 is in communication with the fixed hole 541, and the side wall of the fixed cylinder 6 is rotatably provided with a limiting plate 61. The rotating shaft of the limiting plate 61 is provided with a reset torsion spring 62, and the reset torsion spring 62 has a tendency to drive the limiting plate 61 to close the fixed cylinder 6. The fixed cylinder 6 can further limit the lifting plate 246, and ensure the stability of the jig 24 during rotation.

[0048] With reference to Figure 4 and Figure 5 , the cooling rack 3 is provided with a transmission belt 32. In this embodiment, two transmission belts 32 are provided, which are used to place two lifting plates 246 of the jig 24. The transmission belt 32 is provided with a rotating shaft 321, and the circumferential surface of the rotating shaft 321 is provided with a first straight bevel gear 322. The rotating table 51 is further rotatably provided with a driving column 511, and the driving column 511 is provided with a second straight bevel gear 513. The second straight bevel gear 513 is engaged with the first straight bevel gear 322, so as to transmit the driving force of the rotating motor 53 to the rotating shaft 321 of the transmission belt 32. In this way, it is not necessary to additionally provide a driving source to drive the transmission belt 32 to rotate, thereby saving cost.

[0049] With reference to Figure 4 and Figure 5 , the output shaft of the rotating motor 53 is provided with a driven disc 531, and a one-way bearing 532 is arranged between the output shaft of the rotating motor 53 and the driven disc 531. The driven disc 531 is sleeved with a belt 512, one end of the belt 512 is sleeved on the driven disc 531, and the other end of the belt 512 is sleeved on the driving column 511. In this way, only when the rotating motor 53 rotates in the forward direction, the transmission belt 32 will rotate in the forward direction, and when the rotating motor 53 rotates in the reverse direction, the transmission belt 32 will not rotate in the reverse direction, thereby ensuring the conveying effect of the transmission belt 32 on the jig 24, and realizing the movement of the terminal on the cooling rack 3.

[0050] With reference to Figure 5The cooling rack 3 is further provided with a warm air blower 33, the warm air blower 33 is electrically connected with a temperature sensor 331, and the temperature sensor 331 is electrically connected with the control box 25. The control box 25 controls the start and stop of the warm air blower 33 according to the temperature signal of the temperature sensor 331, so that the warm air blower 33 can adjust the temperature around the cooling rack 3, ensure that the cooling process is carried out in a suitable temperature environment, and improve the cooling quality of the insulation layer.

[0051] The implementation principle of the plastic dipping equipment of the terminal according to the embodiment of the application is as follows: when the terminal is completed with the plastic dipping, the control box 25 controls the rotating motor 53 to start rotating, so as to control the rotating column 54 to rotate the jig 24 to the transmission belt 32, and when the rotating column 54 is next rotated in the positive direction, the rotating motor 53 continues to drive the transmission belt 32 to rotate, so as to convey the last jig 24 to the end away from the rotating column 54, so as to facilitate the worker to take the jig 24 from the transmission belt 32, and at the same time, a position for placing the next jig 24 is reserved. The setting of the rotating mechanism 5 realizes the efficient transfer of the terminal between the plastic dipping device 2 and the cooling rack 3, and the cooperation of the transmission belt 32 and the warm air blower 33 and other components further improves the cooling efficiency and the quality of the insulation layer.

[0052] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, so: any equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A plastic dipping device for terminal blocks, comprising a heating device (1) and a plastic dipping device (2), characterized in that: The heating device (1) comprises a heating platform (11), a heating wire (12) arranged on the heating platform (11), the plastic dipping device (2) comprises a workbench (21), a receiving box (22) arranged on the workbench (21), a lifting frame (23) arranged on the workbench (21), a fixture (24) arranged on the lifting frame (23), and a control box (25) arranged on the workbench (21), the control box (25) being used to control the lifting of the lifting frame (23), the fixture (24) being used to clamp the terminal block, the receiving box (22) containing liquid plastic and having an upper opening, and the lifting frame (23) being located above the receiving box (22).

2. The plastic dipping device for terminal blocks according to claim 1, characterized in that: The jig (24) comprises two clamping pieces (241) arranged opposite to each other, a connecting plate (242) arranged between the two clamping pieces (241), a mounting post (245) arranged on the connecting plate (242), and two lifting plates (246) arranged on the mounting post (245); the lifting frame (23) comprises two support rods (231); the two lifting plates (246) are respectively arranged on the two support rods (231); when the jig (24) clamps the terminal block, the clamping piece (241) is clamped into the wiring hole of the terminal block.

3. The plastic dipping device for terminal blocks according to claim 2, characterized in that: The connecting plate (242) is provided with a sliding hole (249), an adjusting bolt (4) is slidably arranged in the sliding hole (249), the clamping piece (241) comprises a clamping portion (247) for clamping the terminal and a mounting portion (248) connected to the connecting plate (242), and the mounting portion (248) is threadedly connected to the adjusting bolt (4).

4. The plastic dipping device for terminal blocks according to claim 2, characterized in that: It also includes a cooling rack (3), wherein a cooling box (31) with an upper opening is provided on the cooling rack (3), the cooling box (31) is in the form of a rectangular parallelepiped, the length of the cooling box (31) is less than the maximum distance between the two lifting plates (246), and the length of the cooling box (31) is greater than the length of the clamping piece (241).

5. The plastic dipping device for terminal blocks according to claim 4, characterized in that: A rotating mechanism (5) is provided between the workbench (21) and the cooling rack (3), and the rotating mechanism (5) includes a rotating table (51), a fixed plate (52) fixedly arranged on the rotating table (51), a rotating motor (53) arranged on the rotating table (51), and a rotating column (54) arranged on the output shaft of the rotating motor (53). The rotating column (54) is provided with a fixing hole (541) for accommodating the lifting plate (246), and the rotating column (54) is also provided with a rotating groove (542) for accommodating the fixed plate (52). The rotating groove (542) is communicated with the fixed hole (541); an ejection block (522) is slidably provided on the fixed plate (52); an ejection spring (523) is provided on the ejection block (522); the ejection spring (523) has a tendency to drive the ejection block (522) to extend into the fixed hole (541); a guide slope (524) is provided on the ejection block (522); the guide slope (524) is used to guide the ejection block (522) back into the rotating groove (542); and the rotating motor (53) is electrically connected to the control box (25).

6. The plastic dipping device for terminal blocks according to claim 5, characterized in that: The rotating column (54) is cylindrical, and a fixed cylinder (6) is provided on the axial side wall of the rotating column (54), and the fixed cylinder (6) is connected to the fixed hole (541). A limiting plate (61) is rotatably provided on the side wall of the fixed cylinder (6), and a reset torsion spring (62) is provided on the rotating shaft of the limiting plate (61), and the reset torsion spring (62) has a tendency to drive the limiting plate (61) to move toward the direction close to the lifting plate (246).

7. The plastic dipping device for terminal blocks according to claim 5, characterized in that: The cooling rack (3) is provided with a transmission belt (32), a rotating shaft (321) is passed through the transmission belt (32), a first straight bevel gear (322) is provided on the circumference of the rotating shaft (321), a driving column (511) is also rotatably provided on the rotating platform (51), a second straight bevel gear (513) is provided on the driving column (511), the second straight bevel gear (513) is engaged with the first straight bevel gear (322), a driven disc (531) is provided on the output shaft of the rotating motor (53), a one-way bearing (532) is provided between the driven disc (531) and the output shaft of the rotating motor (53), a belt (512) is sleeved on the driven disc (531), one end of the belt (512) is sleeved on the driven disc (531), and the other end is sleeved on the driving column (511).

8. The plastic dipping device for terminal blocks according to claim 7, characterized in that: The cooling rack (3) is also provided with a heater (33), the heater (33) is electrically connected to a temperature sensor (331), and the temperature sensor (331) is electrically connected to the control box (25).

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