Piezoresistor sheet arranging and loading device

Abstract

The utility model discloses a piezoresistor sheet arranging and loading device, which relates to the technical field of piezoresistor sheet arranging and loading, and comprises a base, conveyors are arranged above the middle part of the base, screw rods are arranged on two sides of the middle part of the base, movable blocks matched with the screw rods are arranged above the conveyors, and the movable blocks are a lifting mechanism. A transmission mechanism is arranged below the lead screw, electric telescopic rods are arranged on the portions, located on the two sides of the lead screw, of the inner side of the base, a clamping mechanism is arranged between the electric telescopic rods, a sieve plate is arranged at the top of the movable block, vertical plates are arranged at the two ends of the sieve plate, cushioning mechanisms are arranged in the vertical plates, and a movable pressing type baffle is arranged in the middle of the sieve plate; the multiple sets of clamping holes are formed in the transverse upper portion of the screen plate, the limiting rods matched with the clamping holes are arranged at the top of the screen plate in a limiting and clamping mode, the sheet arranging efficiency is improved, and the stability and consistency of elements in the subsequent machining process are further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of varistor mounting technology, and in particular to a varistor mounting device. Background Technology

[0002] With the rapid development of modern electronic technology, the demand for circuit protection components is increasing. Varistors, as an important circuit protection device, are widely used in various electronic devices, such as communications, automobiles, rail transportation, power transmission and distribution, and national defense. However, in the production process of varistors, especially in the sintering stage, defects such as product shrinkage and cracking often occur, which seriously affect the quality of products and production efficiency.

[0003] Traditional varistor ceramic chip stacking is done horizontally in a crucible. During sintering, the product shrinks and is prone to deformation, bending, and cracking, resulting in low efficiency and a high defect rate. In addition, the existing equipment is inefficient due to the complexity of the loading process, which requires multiple steps. During the stacking process, problems such as misalignment and incorrect installation of resistor chips sometimes occur, affecting product performance. Furthermore, different loading devices may be required for different specifications of varistor stacks, making the equipment inflexible in its use. Utility Model Content

[0004] The present invention proposes a varistor mounting device, which solves the problems of easy deformation, bending, and cracking of products due to shrinkage during the sintering process, as well as the complex operation and lack of flexibility of the device, and the occasional misalignment or incorrect installation of resistors during the mounting process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A varistor mounting device includes a base, a conveyor mounted on the upper part of the center of the base, and lead screws mounted on both sides of the center of the base. A movable block matching the lead screw is mounted above the conveyor, forming a lifting mechanism. A transmission mechanism is mounted below the lead screw. Electric telescopic rods are mounted on both sides of the lead screw on the inner side of the base, and a clamping mechanism is mounted between the electric telescopic rods. A sieve plate is mounted on the top of the movable block, and upright plates are mounted at both ends of the sieve plate. A shock-absorbing mechanism is mounted inside the upright plate, and a movable, press-type baffle is mounted in the center of the sieve plate. Multiple sets of locking holes are arranged horizontally above the sieve plate, and a limiting rod matching the locking holes is mounted on the top of the sieve plate for limiting engagement.

[0007] Preferably, the lifting mechanism includes a slide groove and a slide rod, with a vertical slide groove provided on the inner side of the base at one end, and a slide rod matching the slide groove provided on the outer side of the upright plate.

[0008] Preferably, the transmission mechanism includes a drive motor, a drive wheel, a driven wheel, a belt, and a groove. The groove is located in the lower middle part of the base, and the drive motor is located in the middle of the groove. The output end of the drive motor is connected to the drive wheel. Driven wheels are located at the bottom of the lead screws on both sides of the groove. The two driven wheels are connected to the drive wheel via two independent belts.

[0009] Preferably, the clamping mechanism includes a clamping plate and a protective plate, and the top of each electric telescopic rod is provided with a clamping plate, and the outer side of each electric telescopic rod is provided with a protective plate.

[0010] Preferably, the damping mechanism includes shock absorbers and pressure plates, with pressure plates provided on the sides of the upright plates, and multiple sets of shock absorbers provided between the upright plates and the pressure plates.

[0011] Preferably, the baffle includes a slide rail, a slider, a long bolt, and a threaded hole. Slide rails are provided on both sides of the screen plate, and a slider matching the slide rail is provided on the top of the screen plate. A baffle is connected to the top of the slider. The baffle and the side of the upright plate are provided with threaded holes that communicate with each other. A long bolt is provided inside the threaded hole. The long bolt can be rotated to form a retractable pressing movement structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This varistor mounting device changes the flat placement method to a vertical placement method. The new mounting method avoids product shrinkage, deformation, bending, and cracking during sintering, thus improving efficiency and yield. At the same time, the vertical placement method avoids component stacking and scratching problems, improving processing quality and service life.

[0014] 2. The vertical plates at both ends of the sieve plate have shock-absorbing mechanisms, and a movable, press-type baffle is set in the middle of the sieve plate. Secondly, there are only electric telescopic rods on both sides of the base. The top of the electric telescopic rods is equipped with clamping plates to hold and press the sides of the varistor. The pressing method can further reduce the product deformation rate. The weight of the pressing plate suppresses the arching or warping that may occur during the green blank sintering process. At the same time, the flatness of the sieve plate ensures that the green blank shrinks uniformly in all parts during the sintering process. The shrinkage behavior of the varistor green blank can also be effectively controlled by adjusting process parameters such as sintering temperature, sintering time and heating rate, avoiding the phenomenon of deformation, bending and cracking caused by shrinkage.

[0015] 3. The screen plate has multiple sets of locking holes on the upper horizontal side, and the top of the screen plate has a limiting rod that matches the locking holes to ensure the accuracy of the varistor arrangement during loading and avoid the problem of misalignment or incorrect installation of the resistor pieces. At the same time, the limiting rod can be adjusted to adapt to resistor pieces of different specifications, which improves flexibility and makes the setting and operation of the lifting mechanism simpler. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the lifting structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model.

[0018] Figure 3 This is an exploded view of the structure of this utility model.

[0019] Figure 4 This is a top view of the structure of this utility model.

[0020] Figure 5 This is a schematic diagram of another state structure of the present invention.

[0021] Figure 6 This utility model Figure 3 Enlarged view of point A in the middle.

[0022] The following are the labels in the diagram: 1. Base; 2. Conveyor; 3. Lead screw; 4. Movable block; 5. Electric telescopic rod; 6. Screen plate; 7. Vertical plate; 8. Baffle; 9. Locking hole; 10. Limiting rod; 11. Slide groove; 12. Slide rod; 13. Drive motor; 14. Driving wheel; 15. Driven wheel; 16. Belt; 17. Groove; 18. Clamping plate; 19. Guard plate; 20. Shock absorber; 21. Pressure plate; 22. Slide rail; 23. Sliding block; 24. Long bolt; 25. Threaded hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-6This utility model provides a technical solution: a varistor mounting device, including a base 1, a conveyor 2 on the upper part of the middle of the base 1, and lead screws 3 on both sides of the middle of the base 1. A movable block 4 matching the lead screw 3 is provided above the conveyor 2, forming a lifting mechanism, and a transmission mechanism is provided below the lead screw 3. Electric telescopic rods 5 are provided on both sides of the lead screw 3 on the inner side of the base 1, and a clamping mechanism is provided between the electric telescopic rods 5. A screen plate 6 is provided on the top of the movable block 4, and upright plates 7 are provided at both ends of the screen plate 6. A shock-absorbing mechanism is provided inside the upright plate 7 to avoid damage to the components during the pressing of the baffle 8. A movable pressable baffle 8 is provided in the middle of the screen plate 6. Multiple sets of locking holes 9 are provided on the upper side of the screen plate 6, and a limiting rod 10 matching the locking hole 9 is provided on the top of the screen plate 6 to limit and lock, ensuring the accuracy of the varistor mounting during the loading process and avoiding the problems of misalignment and misinstallation of the resistor pieces.

[0025] Reference Figure 1 , Figure 3 , Figure 5 The lifting mechanism includes a slide groove 11 and a slide rod 12. A vertical slide groove 11 is provided on the inner side of the base 1 at one end, and a slide rod 12 matching the slide groove 11 is provided on the outer side of the upright plate 7 to ensure lifting stability. The transmission mechanism includes a drive motor 13, a drive wheel 14, a driven wheel 15, a belt 16, and a groove 17. A groove 17 is provided in the lower middle part of the base 1, and a drive motor 13 is provided in the middle of the groove 17. The output end of the drive motor 13 is connected to the drive wheel 14. Driven wheels 15 are provided at both ends of the groove 17 at the bottom of the lead screws 3 on both sides. The two driven wheels 15 are connected to the drive wheel 14 by separate belts 16 to ensure simpler operation and more convenient loading of the varistor.

[0026] Reference Figure 2 , Figure 4 The clamping mechanism includes a clamping plate 18 and a protective plate 19. The top of the electric telescopic rod 5 is provided with a clamping plate 18, and the outer side of the electric telescopic rod 5 is provided with a protective plate 19 to ensure that the shrinkage of each part of the green billet is consistent during the sintering process. The damping mechanism includes a shock absorber 20 and a pressure plate 21. The side of the upright plate 7 is provided with a pressure plate 21, and multiple sets of shock absorbers 20 are provided between the upright plate 7 and the pressure plate 21.

[0027] Reference Figure 3 , Figure 5The baffle 8 includes a slide 22, a slider 23, a long bolt 24, and a threaded hole 25. Slides 22 are provided on both sides of the screen plate 6. A slider 23 matching the slide 22 is provided on the top of the screen plate 6. The top of the slider 23 is connected to the baffle 8. The sides of the baffle 8 and the vertical plate 7 are provided with threaded holes 25 that are interconnected. A long bolt 24 is provided inside the threaded hole 25. By rotating the long bolt 24, it moves in a contraction and pressing manner. The pressing method can further reduce the product deformation rate. The weight of the pressing plate can suppress the arching or warping that may occur during the sintering of the green blank. At the same time, the flatness of the screen plate 6 is used to ensure that the shrinkage of each part of the green blank is consistent during the sintering process.

[0028] Specifically, in use, the varistor loading device is first moved to the working area. Then, lead screws 3 are set on both sides of the middle of the base 1, and movable blocks 4 matching the lead screws 3 are set on the top of the conveyor 2. The drive motor 13 at the bottom, the drive wheel 14, the driven wheel 15 and the belt 16 are connected to drive the lead screws 3 to rotate and drive the movable blocks 4 to move up and down. A vertical groove 11 is set on the inner side of the base 1 at one end, and a sliding rod 12 matching the groove 11 is set on the outer side of the upright plate 7 to ensure lifting stability and raise the screen plate 6.

[0029] During operation, multiple sets of locking holes 9 are provided horizontally above the screen plate 6, and the top of the screen plate 6 is provided with limiting rods 10 that match the locking holes 9 for limiting engagement. By adjusting the limiting rods 10, it can adapt to resistors of different specifications, improving flexibility. Then, the varistor is placed between the limiting rods 10. Next, slide rails 22 are provided on both sides of the screen plate 6, and sliders 23 that match the slide rails 22 are provided on the top of the screen plate 6. The top of the sliders 23 is connected to a baffle 8, and the baffle 8 and the outside of the vertical plate 7 are provided with threaded holes 25 and long bolts 24. By rotating the long bolts 24, it moves in a contraction and pressing manner. The pressing method can further reduce the product deformation rate.

[0030] Next, the sieve plate 6 is lowered into the base 1 via the movable block 4. Then, the base 1 has only electric telescopic rods 5 on both sides. The top of each electric telescopic rod 5 is equipped with clamping plates 18 to clamp and press the sides of the varistor, ensuring the accuracy of the varistor arrangement during the loading process and avoiding the problem of misalignment or incorrect installation of the resistor pieces. Finally, it is transported by the bottom conveyor 2.

[0031] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A varistor mounting device, comprising a base (1), characterized in that, A conveyor (2) is provided above the middle of the base (1), and a lead screw (3) is provided on both sides of the middle of the base (1). A movable block (4) matching the lead screw (3) is provided above the conveyor (2) to form a lifting mechanism. A transmission mechanism is provided below the lead screw (3). An electric telescopic rod (5) is provided on both sides of the lead screw (3) inside the base (1), and a clamping mechanism is provided between the electric telescopic rods (5). A screen plate (6) is provided on the top of the movable block (4), and a vertical plate (7) is provided at both ends of the screen plate (6). A shock-absorbing mechanism is provided inside the vertical plate (7), and a movable press-type baffle (8) is provided in the middle of the screen plate (6). Multiple sets of locking holes (9) are provided on the upper side of the screen plate (6), and a limiting rod (10) matching the locking hole (9) is provided on the top of the screen plate (6) to limit the locking.

2. The varistor mounting device according to claim 1, characterized in that, The lifting mechanism includes a slide groove (11) and a slide rod (12). A vertical slide groove (11) is provided on the inner side of the base (1) at one end, and a slide rod (12) matching the slide groove (11) is provided on the outer side of the upright plate (7).

3. The varistor mounting device according to claim 1, characterized in that, The transmission mechanism includes a drive motor (13), a drive wheel (14), a driven wheel (15), a belt (16), and a groove (17). The groove (17) is provided in the lower middle part of the base (1). The drive motor (13) is provided in the middle of the groove (17). The output end of the drive motor (13) is connected to the drive wheel (14). Both ends of the groove (17) are provided with driven wheels (15) at the bottom of the lead screws (3) on both sides. The two driven wheels (15) are connected to the drive wheel (14) through two independent belts (16).

4. The varistor mounting device according to claim 1, characterized in that, The clamping mechanism includes a clamping plate (18) and a guard plate (19), and the top of the electric telescopic rod (5) is provided with a clamping plate (18), and the outer side of the electric telescopic rod (5) is provided with a guard plate (19).

5. The varistor mounting device according to claim 1, characterized in that, The damping mechanism includes a shock absorber (20) and a pressure plate (21). The side of the upright plate (7) is provided with a pressure plate (21), and multiple sets of shock absorbers (20) are provided between the upright plate (7) and the pressure plate (21).

6. The varistor mounting device according to claim 1, characterized in that, The baffle (8) includes a slide (22), a slider (23), a long bolt (24), and a threaded hole (25). The sieve plate (6) is provided with slides (22) on both sides. The sieve plate (6) is provided with a slider (23) that matches the slide (22) on the top. The top of the slider (23) is connected to the baffle (8). The baffle (8) and the side of the upright plate (7) are provided with threaded holes (25) that are connected to each other. The threaded hole (25) is provided with a long bolt (24) inside. The long bolt (24) can be rotated to form a retractable pressing movement structure.

Images