Resistor rod bearing jig for thick film resistor cap pressing machine

Abstract

This utility model relates to a resistance rod support fixture for a thick-film resistor capping machine, comprising a support base and multiple support components. The multiple support components are equidistantly mounted on the support base. Each support component includes a support frame, a support belt, and two winding ropes. The two winding ropes are symmetrically and movably mounted within the support frame. The two ends of the support belt are respectively hung on the two winding ropes. The support base is equipped with an adjustment component for adjusting the length of the winding ropes. In use, the resistance rod support fixture of this utility model for a thick-film resistor capping machine places the resistance rod on the support belt and then caps it. During the capping process, if the resistance rod shifts, the two winding ropes allow the support belt to sway with the resistance rod, thus mitigating its displacement and preventing scratches from sliding friction. Furthermore, the soft support belt will not scratch the surface of the resistance rod.

Description

Technical Field

[0001] This utility model belongs to the field of resistance rod processing technology, specifically relating to the resistance rod bearing fixture of a thick film resistor cap pressing machine. Background Technology

[0002] Currently, thick-film resistors are mainly produced by screen printing. The resistive paste is laid onto an alumina ceramic substrate through screen printing. Commonly used thick-film resistors are printed and sintered using ruthenium-based resistive paste. Thick-film resistors come in various structures, including chip, block, and columnar shapes. For columnar thick-film resistors, metal caps are placed at both ends of the body for electrical connection.

[0003] When assembling metal caps on existing columnar thick-film resistors, pneumatic cap-pressing fixtures are mainly used to press the caps onto the ends of the body. When the pneumatic cap seat presses against the fixed cap seat, the resistor rod will undergo a certain displacement, while the support seat remains stationary. The displacement will cause sliding friction with the support seat. Of course, this slight displacement will not cause major accidents such as resistor detachment, but it may leave scratches on the surface, thus reducing the quality of the resistor rod. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a resistance rod support fixture for a thick film resistance cap pressing machine, which can follow the resistance rod to make a certain displacement, thereby preventing the occurrence of scratches on the surface due to sliding friction.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a resistance rod bearing fixture for a thick film resistance cap pressing machine, including a support base and multiple bearing components. The multiple bearing components are equidistantly installed on the support base. Each bearing component includes a bearing frame, a bearing belt, and two winding ropes. The two winding ropes are symmetrically and movably installed in the bearing frame. The two ends of the bearing belt are respectively hung on the two winding ropes. The support base is provided with an adjustment component for adjusting the length of the winding ropes.

[0006] The adjustment assembly includes a drive worm, a first gear set, a second gear set, two winding rods, and two transmission belts. The drive worm is rotatably mounted on a support base. The first and second gear sets are symmetrically positioned on both sides of the drive worm and are driven by it. The two winding rods are symmetrically rotatably mounted in the support bases on both sides of the carrier frame. The winding rope passes through the carrier frame and is wound around the winding rods. One end of each of the two transmission belts is driven by the first and second gear sets, respectively, and the other end is driven by the two winding rods, respectively.

[0007] The support base is provided with a protective cover covering two winding rods. The protective cover is fixedly installed on the support frame. The end of the protective cover facing the drive worm is provided with a protective shield. The first gear set, the second gear set and two transmission belts are placed inside the protective shield, and the drive worm is rotatably installed on the protective shield.

[0008] The support frame is equipped with a guide wheel that rotates inside, and the winding rope is arranged to pass around the guide wheel.

[0009] The carrying belt includes a fabric strip and a fleece layer. The fabric strip has connecting holes at both ends. The winding rope has connecting rings that are fastened to the connecting holes. The fleece layer is bonded to the fabric strip.

[0010] The connecting ring includes a ring body and an arc-shaped connecting post. The winding rope is wound and connected to the ring body. The ring body has an opening that mates with the arc-shaped connecting post. One end of the arc-shaped connecting post is rotatably mounted on the opening, and the other end has a protrusion. The opening has a limiting groove that mates with the protrusion. A coil spring is provided at the rotatable connection between the arc-shaped connecting post and the opening.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The resistance rod support fixture of this utility model thick film resistor capping machine, when in use, is used by placing the resistance rod on the support belt and then pressing the cap. During the capping process, when the resistance rod is displaced, the support belt can be made to sway with the resistance rod by setting two winding ropes, thereby moving with the resistance rod to a certain extent, thus preventing sliding friction from leaving scratches on the surface. In addition, the support belt is soft and will not scratch the surface of the resistance rod. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the bearing fixture of this utility model;

[0014] Figure 2 This is a cross-sectional structural diagram of the adjustment component of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the support frame of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the bearing belt of this utility model;

[0017] Figure 5 This is a schematic diagram of the connecting ring of this utility model.

[0018] The markings in the diagram are: 1. Support base; 2. Bearing frame; 3. Bearing belt; 4. Winding rope; 5. Adjustment component; 6. Drive worm gear; 7. First gear set; 8. Second gear set; 9. Winding rod; 10. Transmission belt; 11. Protective cover; 12. Protective shield; 13. Guide wheel; 14. Fabric strip; 15. Fleece layer; 16. Connecting ring; 17. Ring body; 18. Arc-shaped connecting column; 19. Protrusion; 20. Limiting groove. Detailed Implementation

[0019] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0020] like Figures 1-5 As shown, this embodiment provides a resistance rod support fixture for a thick-film resistor capping machine, including a support base 1 and multiple support components. The multiple support components are equidistantly mounted on the support base 1. Each support component includes a support frame 2, a support belt 3, and two winding ropes 4. The two winding ropes 4 are symmetrically and movably mounted within the support frame 2. The two ends of the support belt 3 are respectively hung on the two winding ropes 4. The support base 1 is provided with an adjustment component 5 for adjusting the length of the winding ropes 4. In use, the resistance rod is placed on the support belt 3, and then the cap is pressed. During the capping process, when the resistance rod shifts, the two winding ropes 4 allow the support belt 3 to sway with the resistance rod, thus following the resistance rod's movement and preventing scratches from sliding friction. Furthermore, the softness of the support belt 3 prevents scratches on the surface of the resistance rod.

[0021] Furthermore, the adjusting assembly 5 includes a drive worm 6, a first gear set 7, a second gear set 8, two winding rods 9, and two transmission belts 10. The drive worm 6 is rotatably mounted on the support base 1. The first gear set 7 and the second gear set 8 are symmetrically positioned on both sides of the drive worm 6 and are driven by the drive worm 6. The two winding rods 9 are symmetrically rotatably mounted in the support bases 1 on both sides of the carrier frame 2. The winding rope 4 passes through the carrier frame 2 and is wound around the winding rod 9. One end of the two transmission belts 10 is respectively connected to the first gear set 7 and the second gear set 8. That is, the first gear set 7 includes a drive gear meshing with the drive worm 6 and a gear that is driven by the transmission belt 10. The structure of the second gear set 8 is the same as that of the first gear set 7. The other end of the transmission belt 10 is respectively connected to the two winding rods 9. That is, the winding rod 9 is coaxially mounted with a gear that is driven by the transmission belt 10. The transmission belt 10 drives the gear to rotate, thereby driving the winding rod 9 to unwind. Rotating the drive worm 6 drives the first gear set 7 and the second gear set 8 to rotate, which in turn drives the two winding rods 9 to rotate via the two transmission belts 10. This allows the winding ropes 4 to be wound or unwound to adjust the height of the carrying belt 3. The winding rods 9 are wound and connected to the winding ropes 4 on multiple carrying components, allowing multiple winding ropes 4 to be adjusted simultaneously when one winding rod 9 rotates. Specifically, the support base 1 is provided with a protective cover 11 covering the two winding rods 9. The protective cover 11 is fixed to the carrying frame 2 by bolts. A protective shield 12 is provided at the end of the protective cover 11 facing the drive worm 6. The first gear set 7, the second gear set 8, and the two transmission belts 10 are placed inside the protective shield 12, and the drive worm 6 is rotatably mounted on the protective shield 12. The protective shield 12 and the protective cover 11 protect the components.

[0022] Furthermore, the carrier belt 3 includes a fabric strip 14 and a fleece layer 15. The fabric strip 14 has connecting holes at both ends, and the winding rope has connecting rings 16 that are fastened to the connecting holes. The fleece layer 15 is bonded to the fabric strip 14. The fleece layer 15 is provided to prevent it from scratching the surface of the resistance rod due to excessive hardness when in contact with the resistance rod.

[0023] Furthermore, the connecting ring 16 includes a ring body 17 and an arc-shaped connecting post 18. The winding rope is wound and connected to the ring body 17. The ring body 17 has an opening that mates with the arc-shaped connecting post 18. One end of the arc-shaped connecting post 18 is rotatably mounted on the opening, and the other end has a protrusion 19. The opening has a limiting groove 20 that mates with the protrusion 19. A coil spring is provided at the rotatable connection between the arc-shaped connecting post 18 and the opening. By pressing the arc-shaped connecting post 18 to move it inward into the ring body 17, the opening is opened, and the fabric strip 14 can be removed through the opening for replacement or cleaning. After releasing the arc-shaped connecting post 18, the opening is reclosed by the coil spring.

[0024] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A resistor bar carrying jig for a thick film resistor cap pressing machine, characterized by: It includes a support base and multiple load-bearing components. The multiple load-bearing components are equidistantly installed on the support base. Each load-bearing component includes a load-bearing frame, a load-bearing belt, and two winding ropes. The two winding ropes are symmetrically and movably installed in the load-bearing frame. The two ends of the load-bearing belt are respectively hung on the two winding ropes. The support base is provided with an adjustment component for adjusting the length of the winding ropes.

2. The resistor bead carrying fixture of a thick film resistor hat machine according to claim 1, wherein: The adjustment assembly includes a drive worm, a first gear set, a second gear set, two winding rods, and two transmission belts. The drive worm is rotatably mounted on a support base. The first and second gear sets are symmetrically positioned on both sides of the drive worm and are driven by it. The two winding rods are symmetrically rotatably mounted in the support bases on both sides of the carrier frame. The winding rope passes through the carrier frame and is wound around the winding rods. One end of each of the two transmission belts is driven by the first and second gear sets, and the other end is driven by the two winding rods.

3. The resistor bead carrying fixture of a thick film resistor hat machine of claim 2, wherein: The support base is provided with a protective cover covering two winding rods. The protective cover is fixedly installed on the support frame. The end of the protective cover facing the drive worm is provided with a protective shield. The first gear set, the second gear set and two transmission belts are placed inside the protective shield, and the drive worm is rotatably installed on the protective shield.

4. The resistor bead carrying fixture of a thick film resistor hat machine of claim 1, wherein: The support frame is equipped with a guide wheel that rotates within it, and the winding rope is arranged to pass around the guide wheel.

5. The resistor bead carrying fixture of a thick film resistor hat machine of claim 1 wherein: The carrying belt includes a fabric strip and a fleece layer. The fabric strip has connecting holes at both ends. The winding rope has connecting rings that are fastened to the connecting holes. The fleece layer is bonded to the fabric strip.

6. The resistor bead carrying fixture of a thick film resistor hat machine of claim 5 wherein: The connecting ring includes a ring body and an arc-shaped connecting post. The winding rope is wound and connected to the ring body. The ring body has an opening that mates with the arc-shaped connecting post. One end of the arc-shaped connecting post is rotatably mounted on the opening, and the other end has a protrusion. The opening has a limiting groove that mates with the protrusion. A coil spring is provided at the rotatable connection between the arc-shaped connecting post and the opening.

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