Glass tube resistor straightening device
By designing a glass tube resistor straightening device, the resistor pins are automatically straightened using straightening rollers and a base, solving the problem of pin deformation causing welding difficulties, improving welding efficiency and reducing costs.
Patent Information
- Application Number
- CN202422608571.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-29
AI Technical Summary
In the prior art, the metal pins of glass tube resistors are easily deformed, which makes welding difficult, and manual welding is inefficient and costly.
A glass tube resistor straightening device was designed, which included a resistor feeder, a pin straightening unit, and a resistor conveying device. Straightening rollers and a straightening base were used to automatically straighten the resistor pins. Local and overall straightening of the pins was achieved by setting rollers of different thicknesses and adjustable gaps.
The automatic straightening of the resistor pins is realized, which improves the welding efficiency, reduces the labor cost, and ensures that the pins can be smoothly welded to other devices.
Smart Images
Figure CN223312913U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a glass tube resistor straightening device, which is used for straightening pins at both ends of a glass tube resistor. Background Art
[0002] Resistors, as electronic components, are widely used in electrical products. During the manufacturing process of these products, resistors need to be soldered to circuit boards or other components. However, due to the small size of resistors, soldering is often done manually, resulting in low soldering efficiency. Furthermore, with rising labor costs, manual soldering leads to high manufacturing costs.
[0003] Automated resistor soldering is urgently needed on existing production lines. Glass tube resistors are packed together in a disorderly manner, and the resulting compression can cause deformation of the metal pins, making it difficult to align with other components during the subsequent soldering process. Therefore, prior to soldering, the metal pins of the glass tube resistors must be straightened. Utility Model Content
[0004] The purpose of the utility model is to provide a glass tube resistor straightening device, which can straighten two pin wires of a resistor in an automated manner to facilitate subsequent processing.
[0005] To achieve the above-mentioned objectives, the glass tube resistor straightening device of the present invention includes a resistor feeder, a pin straightening unit, and a resistor conveying device. The resistor feeder is used to sequentially and evenly spaced supply scattered glass tube resistors; the pin straightening unit is used to straighten the pins of the glass tube resistors; and the resistor conveying device is used to remove the glass tube resistors from the resistor feeder and convey them to the pin straightening unit. The pin straightening unit includes straightening rollers and a straightening base, with a gap between the straightening base and the straightening rollers for the pins to pass through. The straightening rollers include a first roller and a second roller, with the second roller located downstream of the first roller in the direction of travel of the glass tube resistor. The width of the second roller is greater than that of the first roller, and both the first and second rollers are provided with a clearance for accommodating the resistor body. The glass tube resistor includes a resistor body and pins located on both sides of the resistor body.
[0006] This glass tube resistor straightening device first uses a resistor feeder to pick up scattered resistors at equal intervals. A resistor conveyor then transports the resistors from the feeder to the resistor straightening unit. The resistor straightening unit, equipped with two rollers of varying thicknesses, performs partial straightening before fully straightening the resistors. This prevents excessively bent resistor leads from being unable to rotate and pass through the gap. This device automatically straightens both resistor leads, achieving excellent straightening results and preventing excessively bent leads from becoming unstraightened.
[0007] In one embodiment, the resistor feeder includes a turntable and a guide mechanism, the turntable is used to adsorb the glass tube resistors on a circumferential surface at equal intervals, the guide mechanism includes two magnetic members and two guide plates, the two guide plates are arranged parallel to each other to form a guide channel for the glass tube resistors; at least a portion of the turntable is located in the guide channel; the two magnetic members are arranged side by side at a predetermined angle, and the predetermined angle is set so that the magnetic members cause the glass tube resistors to move along the guide channel toward the circumferential surface of the turntable under the action of magnetic force.
[0008] In one embodiment, transverse grooves are provided on the circumferential surface of the turntable at equal intervals, and the glass tube resistors are adsorbed in the transverse grooves.
[0009] In one embodiment, the resistance delivery device includes a plurality of brackets arranged at equal intervals, each bracket having a receiving groove for receiving and supporting the pin.
[0010] In one embodiment, the first roller contacts the middle portion of the pins of the glass tube resistor as it passes through the gap. The middle portion of the pins of the glass tube resistor is first straightened to prevent excessively bent resistor pins from being unable to rotate and pass through the gap between the straightening roller and the straightening base.
[0011] In one embodiment, the second roller can contact the entire pin of the glass tube resistor when the glass tube resistor passes through the gap, and then straighten all positions of the pin of the glass tube resistor, which has a better straightening effect.
[0012] In one embodiment, the gap between the straightening base and the straightening roller can be automatically adjusted according to the diameter of the pin.
[0013] In one embodiment, the straightening roller is rotatably mounted on a slide, and the slide can move up and down under the action of a spring to adjust the size of the gap, so that the glass tube resistance straightening device of the present invention can be applicable to pins of various sizes.
[0014] In one embodiment, the straightening base is provided with a recess that matches the curvature of the straightening roller.
[0015] In one embodiment, a guiding slope is provided on the straightening base, and the guiding slope is used to guide the glass tube resistor into the gap between the straightening base and the straightening roller. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional diagram of a glass tube resistance straightening device according to one embodiment of the present invention.
[0017] Figure 2 yes Figure 1 A three-dimensional view of the glass tube resistance straightening device from another angle is shown.
[0018] Figure 3 It is a schematic diagram of the glass tube resistance processed by the glass tube resistance straightening device of the present invention.
[0019] Figure 4 yes Figure 1 Schematic diagram of the resistance feeder of the glass tube resistance straightening device shown.
[0020] Figure 5 yes Figure 4 An enlarged partial view of the resistor feeder's turntable is shown.
[0021] Figure 6 This is a schematic diagram of the coordination between the turntable of the resistor feeder and the resistor conveying device.
[0022] Figure 7 yes Figure 6 A partially enlarged view of the resistance delivery device is shown.
[0023] Figure 8 It is a schematic diagram of the coordination between the resistance conveying device and the pin straightening portion.
[0024] Figure 9a and Figure 9b This is a schematic diagram of the glass tube resistor entering the pin straightening section. DETAILED DESCRIPTION
[0025] The structure and other aspects of the glass tube resistance straightening device of the present invention are further described in detail below through specific implementations and with reference to the accompanying drawings.
[0026] like Figures 1 to 3 As shown, the glass tube resistor straightening device of the present invention includes a resistor feeder 1, a resistor conveying device 2, and a pin straightening unit 3. The resistor feeder 1 sequentially supplies scattered glass tube resistors 4 to the resistor conveying device 2, which then conveys the glass tube resistors 4 from the resistor feeder 1 to the pin straightening unit 3. The glass tube resistor 4 includes a resistor body 41 and metal pins 42 located on either side of the resistor body 41. The pin straightening unit 3 is used to straighten the pins 42.
[0027] like Figure 4 As shown, in one embodiment, a resistor feeder 1 includes a turntable 11 and a guide mechanism 12. The turntable 11 is used to attract glass tube resistors 4 at equal intervals onto the circumference of the turntable 11. The turntable 11 is rotatably mounted on a base 13. The guide mechanism 12 includes two magnetic members 121, such as magnets, and two guide plates 122. The magnetic members 121 and guide plates 122 are also mounted on the base 13. The two guide plates 122 are arranged parallel to each other to form a guide channel 15 for the glass tube resistors 4. At least a portion of the turntable 11 is located within the guide channel 15. The two magnetic members 121 are arranged side by side at a predetermined angle. The predetermined angle is set so that the magnetic members 121 cause the glass tube resistors 4 to move along the guide channel 15 toward the circumference of the turntable 11 under the action of magnetic force. The magnetic members 121 are positioned outside the guide plates 122 relative to the guide channel 15.
[0028] like Figure 5 As shown, in a preferred embodiment, transverse grooves 111 are arranged at equal intervals on the circumferential surface of the turntable 11, and magnetic points 112 are provided at the positions of the transverse grooves 111. When the glass tube resistor 4 approaches the circumferential surface of the turntable 11, the magnetic points 112 adsorb the glass tube resistor 4 into the transverse grooves 111.
[0029] When the resistor feeder 1 is in operation, the operator places a large number of glass-tube resistors 4 into the guide channel 15. The metal leads of the glass-tube resistors 4 are then moved toward the circumference of the turntable 11 by the magnetic field of the magnetic element 121 until they make contact. Magnetic points 112 on the circumference of the turntable 11 attract the glass-tube resistors 4 to the equally spaced transverse grooves 111. As the turntable 11 rotates, driven by a drive mechanism, the glass-tube resistors 4 are picked up one by one and transported to the resistor conveyor 2.
[0030] like Figure 6 and Figure 7 As shown, in one embodiment, the resistor conveyor device 2 includes two brackets 21 and hinges 22 arranged horizontally side by side. Multiple brackets 21 are mounted on the hinges 22 at equal intervals. The hinges 22 are mounted on a sprocket 23, and the hinges 22 can circulate on the sprocket 23. Each bracket 22 is provided with a receiving slot 211. The two pins 42 of the glass tube resistor 4 are respectively accommodated and supported in the receiving slots 211 of the two rows of brackets 21. At least a portion of the turntable 11 of the resistor feeder 1 is located between the hinges 22, so that the resistor conveyor device 2 can remove the glass tube resistor 4 from the turntable 11.
[0031] The length of the glass tube resistor 4 is greater than the thickness of the turntable 11, and the distance between the opposing brackets 22 is greater than the thickness of the turntable 11 but less than the length of the glass tube resistor 4. When the hinge 22 moves horizontally, the turntable 11 rotates simultaneously, and the pins 42 of the glass tube resistor 4 on the circumference of the turntable 11 enter the receiving grooves 211 of the brackets 21, allowing them to be removed one by one.
[0032] like Figure 8 and Figures 9a-9b As shown, in one embodiment, the pin straightening unit includes a straightening roller 31 and a straightening base 32, with a gap between the straightening roller 31 and the straightening base 32. The straightening roller 31 further includes a first roller 311 and a second roller 312. The second roller 312 is located downstream of the first roller 311 in the direction of travel (X) of the glass tube resistor, and the width (thickness) of the second roller 312 is greater than that of the first roller 311. A clearance 311a is provided in the middle of the first roller 311. Because the diameter of the resistor body 41 is larger than the diameter of the pins 42, the clearance 311a can accommodate the resistor body 41 when the pins 42 of the glass tube resistor 4 pass through the gap between the straightening roller 31 and the straightening base 32. Similarly, the second roller 312 is also provided with a clearance.
[0033] In a preferred embodiment, the gap between the straightening roller 31 and the straightening base 32 is adjustable. Specifically, the first roller 311 and the second roller 312 are rotatably mounted on a slide 34, which is movably mounted on a rail 35 and can move up and down along the rail 35. A compression spring 36 is provided above the slide 34, exerting a downward elastic force on the slide 34, ensuring that the straightening roller 31 always contacts the pin 42 during rotation and allowing the gap between the straightening roller 31 and the straightening base 32 to be adjustable.
[0034] The straightening base 32 is provided with a guide bevel 321, which is used to guide the glass tube resistor 4 into the gap between the straightening base 32 and the straightening roller 311. The bracket 21 pushes the glass tube resistor 4 along the guide bevel 321 until it contacts the first roller 311. A guide bevel is also provided between the first roller 311 and the second roller 312 to facilitate the entry of the lead pin into the gap between the second roller 312 and the straightening base 32. In a preferred embodiment, the straightening base 32 is provided with a recessed portion that matches the curvature of the straightening roller 31. The recessed portion increases the gap length between the straightening base 32 and the straightening roller 31, facilitating the straightening roller 31 to rub the lead pin 42, thereby improving the straightening effect on the lead pin 42. There are two recessed portions, one corresponding to the first roller 311 and the second roller 312.
[0035] After being straightened by the first roller 311, the glass tube resistor 4 is straightened again by the second roller 312. The thickness of the second roller 312 is greater than that of the first roller 311. The first roller 311 first straightens the center of the lead 42, while the second roller 312 straightens the entire lead 42. The purpose of having two rollers, one foreground and one foreground, is to allow for partial straightening by the first roller and then full straightening by the second roller. This prevents excessively bent resistor leads from being unable to rotate through the gap between the straightening roller and the straightening base, preventing them from being straightened.
[0036] The above embodiments are intended only to illustrate the concept and scope of the present invention and are not intended to limit the scope of protection of the present invention. Modifications, equivalent substitutions, and other improvements to the above embodiments that are obvious to those skilled in the art are also within the concept of the present invention. The scope and concept of protection of the present invention are specifically defined by the claims.
Claims
1. A glass tube resistor straightening device, the glass tube resistor comprising a resistor body and pins located on both sides of the resistor body, the glass tube resistor straightening device comprising The resistor feeder is used to supply scattered glass tube resistors in sequence at equal intervals; a pin straightening portion, used for straightening the pins of the glass tube resistor; and a resistor conveying device, the resistor conveying device being used to take the glass tube resistor from the resistor feeder and convey it to the pin straightening unit; The pin straightening portion includes a straightening roller and a straightening base, and a gap is provided between the straightening base and the straightening roller for the pin to pass through; It is characterized in that The straightening roller includes a first roller and a second roller. Along the traveling direction of the glass tube resistor, the second roller is located downstream of the first roller; the width of the second roller is greater than the width of the first roller, and the first roller and the second roller are both provided with a space-avoiding portion for accommodating the resistor body.
2. The glass tube resistance straightening device according to claim 1, characterized in that: The resistance feeder includes A turntable, used for adsorbing the glass tube resistors at equal intervals on a circumferential surface; as well as A guiding mechanism includes two magnetic members and two guide plates, the two guide plates being arranged parallel to each other to form a guiding channel for the glass tube resistor; at least a portion of the turntable is located within the guiding channel; the two magnetic members are arranged side by side at a predetermined angle, the predetermined angle being set so that the magnetic members cause the glass tube resistor to move along the guiding channel toward the circumferential surface of the turntable under the action of magnetic force.
3. The glass tube resistance straightening device according to claim 2, characterized in that: Transverse grooves are provided on the circumferential surface of the turntable at equal intervals, and the glass tube resistors are adsorbed in the transverse grooves.
4. The glass tube resistance straightening device according to claim 1, characterized in that: The resistance transmission device includes a plurality of brackets arranged at equal intervals, each bracket having a receiving groove, and the receiving groove is used to receive and support the pins.
5. The glass tube resistance straightening device according to claim 1, characterized in that: The first roller can contact the middle portion of the pin when the glass tube resistor passes through the gap.
6. The glass tube resistance straightening device according to claim 5, characterized in that: The second roller can contact the entire pin through the gap in the glass tube resistor.
7. The glass tube resistance straightening device according to claim 1, characterized in that: The gap between the straightening base and the straightening roller can be automatically adjusted according to the size of the pin diameter.
8. The glass tube resistance straightening device according to claim 7, characterized in that: The straightening roller is rotatably mounted on a slide, and the slide can move up and down under the action of a spring to adjust the size of the gap.
9. The glass tube resistance straightening device according to claim 1, characterized in that: The straightening base is provided with a recessed portion that matches the curvature of the straightening roller.
10. The glass tube resistance straightening device according to claim 1, characterized in that: A guiding slope is provided on the straightening base, and the guiding slope is used to guide the glass tube resistor into the gap between the straightening base and the straightening roller.