Bending device for thumbtack needle processing
By designing a bending die including a V-shaped concave die and a telescopic arc base, and combining the arc surface of the bend block to form an appropriate bending radius, the problem of breakage or cracks caused by lack of radius in the bending part of the press needle in the prior art is solved, and the production quality of the press needle is improved.
Patent Information
- Application Number
- CN202421262742.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The existing bending device for press needle processing does not consider the bending radius of the bending part, which causes the bending part to easily cause breakage or cracks, affecting the production quality of the press needle.
A bending die including a V-shaped concave die and a telescopic arc base is designed, and combined with the arc surface of the bent block to form an appropriate bending radius to ensure that the pressing needle will not cause breakage or cracks due to the lack of bending radius during the bending process.
By adopting an appropriate bending radius, breaking or cracking of the press needle during bending is avoided, and the production quality of the press needle is improved.
Smart Images
Figure CN222552033U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a bending device, in particular to a bending device for pressing needles. Background Art
[0002] Press needles are a type of needle that is shaped like a thumbtack. The handle is flat and the needle body is about one to two centimeters long. They are generally used for intradermal acupuncture or ear acupuncture, and are an auxiliary treatment method in traditional Chinese medicine. The needles are buried in the acupuncture points to play the role of acupuncture point massage, relieve pain, and promote organ blood circulation.
[0003] The material of the press pin is mostly stainless steel. The existing press pin bending equipment mostly uses shearing to bend. The bending radius is not considered at the bending part, which makes the bending part easy to break or crack, thus affecting the production quality of the press pin. Utility Model Content
[0004] The utility model aims to provide a bending device for processing press pins, which is used to solve the problem that the existing bending devices for processing press pins do not take the bending radius of the bending part into consideration, so that the bending part is prone to breakage or cracks, thereby affecting the production quality of the press pins.
[0005] In order to solve the above problems, the utility model provides a bending device for press pin processing, including an arrangement cavity, a bending die is provided on one side of the arrangement cavity, the bending die is a concave die with a V-shaped cross-section, a telescopic arc seat is provided at the bottom end of the concave die of the bending die, a plurality of positioning grooves are opened on the bending die, and fixed-size plates are slidably connected at both ends of the positioning grooves, a telescopic groove is provided on the other side of the arrangement cavity, a bending block is slidably connected in the telescopic groove, the top of the bending block is provided with an arc surface corresponding to the arc seat, a feed port is provided at the top of the arrangement cavity, and a pull-out cover is provided at the bottom end of the arrangement cavity.
[0006] The bending device for pressing needle processing provided by the utility model also has the following technical features:
[0007] Furthermore, the bottom end angle of the concave die of the bending die is less than 90 degrees.
[0008] Furthermore, a supporting cavity for the arc seat to retract is provided on the bending die, the arc seat is fixedly connected with a spring, the other end of the spring is fixedly connected to the supporting cavity, and staggered platforms are provided on both sides of the supporting cavity.
[0009] Furthermore, two vertical grooves are provided on one side of the telescopic groove on the arrangement chamber, and extendable pressure rods are provided in the two grooves. Two pushing shafts are fixedly connected to each pressure rod, and a connecting plate is fixedly connected between the pushing shafts. One side of the telescopic groove on the arrangement chamber is fixedly connected to a casing, and a clamping cylinder is fixedly connected to the casing, and the push rod of the clamping cylinder is fixedly connected to the connecting plate.
[0010] Furthermore, a bending cylinder is fixedly connected to the casing, and a push rod of the bending cylinder is fixedly connected to the bending block.
[0011] Furthermore, electric push rods are fixedly connected to the casings at both ends of the arrangement cavity, and the push rods of the electric push rods are fixedly connected to the fixed-length plate.
[0012] The utility model has the following beneficial effects: the bending device for press pin processing described in the present application adopts a bending die with an arc-shaped bottom end to cooperate with the arc at the top of the bending block to form the bending radius of the press pin, thereby avoiding breakage or cracks caused by the lack of a bending radius when the press pin is bent, thereby ensuring the production quality of the press pin. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a top-view cross-sectional isometric diagram of a bending device for pressing needle processing according to an embodiment of the utility model;
[0014] Figure 2 The bending device for pressing needle processing of the utility model embodiment Figure 1 A zoomed in view of the node in the middle;
[0015] Figure 3 It is a front cross-sectional schematic diagram of a bending device for pressing needle processing according to an embodiment of the utility model;
[0016] Figure 4 It is a cross-sectional schematic diagram of the feeding state of the bending device for pressing needle processing according to an embodiment of the utility model.
[0017] (1-arrangement cavity, 2-bending die, 3-arc seat, 4-positioning groove, 5-fixed-size plate, 6-telescopic groove, 7-bending block, 8-feeding port, 9-pull-out cover, 10-support cavity, 11-spring, 12-groove, 13-pressure rod, 14-driving shaft, 15-connecting plate, 16-casing, 17-pressing cylinder, 18-bending cylinder, 19-electric push rod) DETAILED DESCRIPTION
[0018] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.
[0019] like Figures 1 to 4 In the embodiment of the bending device for pressing pins of the utility model shown, the bending device for pressing pins comprises an arrangement cavity 1, a bending die 2 is provided on one side of the arrangement cavity 1, the bending die 2 is a concave die with a V-shaped cross-section, a telescopic arc seat 3 is provided at the bottom end of the concave die of the bending die 2, a plurality of positioning grooves 4 are provided on the bending die 2, and fixed-size plates 5 are slidably connected at both ends of the positioning grooves 4, a telescopic groove 6 is provided on the other side of the arrangement cavity 1, a bending block 7 is slidably connected in the telescopic groove 6, the top of the bending block 7 is provided with an arc surface corresponding to the arc seat 3, a feed port 8 is provided at the top of the arrangement cavity 1, and a pull-out cover 9 is provided at the bottom end of the arrangement cavity 1.
[0020] Specifically, the press pins to be bent fall into the arrangement cavity 1 from the feed port 8 in sequence until they reach the bottom of the feed port 1, so that the bending block 7 extends out from the telescopic groove 6 to hold the press pins, and the press pins are pressed into the positioning groove 4, and the fixed-size plates 5 at both ends are slid to move the press pins left and right to align the bending position with the center position of the arc surface of the bending block 7, and the bending block 7 continues to extend outward, and the bending block 7 gradually bends the press pin until the press pin is pushed into the arc seat 3 at the bottom of the die. After bending, the bending block 7 is retracted into the telescopic groove 6, and the arc seat 3 is extended to push the bent press pin out of the positioning groove 4 and fall onto the pull-out cover 9 at the bottom, and the pull-out cover 9 is pulled out so that the press pin leaks out of the device, and the arc surface of the bending block 7 is used as the bending radius, so that the press pin will not break or crack due to the small bending radius when bending, thereby ensuring the production quality of the press pin.
[0021] In one embodiment of the present application, preferably, the bottom end angle of the concave die of the bending die 2 is less than 90 degrees, so that the forming angle during bending is less than 90 degrees, so as to offset the elasticity of the press pin steel, so that the finished product is bent at 90 degrees.
[0022] In one embodiment of the present application, preferably, a supporting cavity 10 for retracting the arc seat 3 is opened on the bending die 2, and the arc seat 3 is fixedly connected to a spring 11, and the other end of the spring 11 is fixedly connected to the supporting cavity 10. Staggered platforms are provided on both sides of the supporting cavity 10, which are used to retract the arc seat 3 to the bottom end of the die when the bending block 7 is bent. When the bending block 7 is retracted, the arc seat 3 can extend by itself and push the press pin out of the positioning groove 4. When the arc seat 3 is compressed, it is limited by the staggered platform to avoid excessive bending caused by excessive compression.
[0023] In one embodiment of the present application, preferably, two vertical grooves 12 are provided on one side of the telescopic groove 6 of the arrangement chamber 1, and extendable pressure rods 13 are provided in the two grooves 12. Two pushing shafts 14 are fixedly connected to each pressure rod 13, and a connecting plate 15 is fixedly connected between the pushing shafts 14. A housing 16 is fixedly connected to one side of the telescopic groove 6 of the arrangement chamber 1, and a clamping cylinder 17 is fixedly connected to the housing 16. The push rod of the clamping cylinder 17 is fixedly connected to the connecting plate 15. The pressure rod 13 is used to make the press pins that fall randomly into the arrangement chamber 1 enter their corresponding positioning grooves 4 under the squeezing of the pressure rod 13. The pressure rods 13 are arranged on both sides of the bending block 7, and can evenly press both ends of the press pins into the positioning grooves 4.
[0024] In one embodiment of the present application, preferably, a bending cylinder 18 is fixedly connected to the housing 16, and a push rod of the bending cylinder 18 is fixedly connected to the bending block 7 for pushing the bending block 7 to press the press pin to bend the press pin.
[0025] In one embodiment of the present application, preferably, an electric push rod 19 is fixedly connected to the housing 16 at both ends of the arrangement cavity 1, and the push rod of the electric push rod 19 is fixedly connected to the sizing plate 5, and is used to push the sizing plate 5 to align the two ends of the press pin and align the bending point with the center of the arc surface of the bending block 7.
[0026] In summary, the bending device for processing the pressing pins in the above embodiment of the utility model, specifically, the pressing pins to be bent fall into the arrangement cavity 1 from the feed port 8 in sequence until they reach the bottom of the feed port 8, the pressing cylinder 17 is started to make the pressing rod 13 extend from the groove 12, the pressing rod 13 pushes the pressing pins to the positioning groove 4 and presses the pressing pins into their respective positioning grooves 4, the electric push rod 19 is started to push the fixed length plate 5 to align the two ends of the pressing pins, and align the bending point with the arc center line of the bending block 7, the bending cylinder 18 is started to make the bending block 7 extend from the extension The pressing pin is extended out of the contraction groove 6 to hold it, and the bending block 7 gradually bends the pressing pin until it is pushed into the arc seat 3, and continues to push the pressing pin out until the arc seat 3 is pushed back into the support cavity 10. After bending, the bending block 7 is retracted back into the telescopic groove 6. When the bending block 7 is retracted, the arc seat 3 is extended under the influence of the spring 11 and pushes the bent pressing pin out of the positioning groove 4 and falls onto the pull-out cover 9 at the bottom. The pull-out cover 9 is pulled out and the pressing pin leaks out of the device. The pressure rod 13 is retracted into the groove 12, so that the feed port 8 can continue to feed. This device uses the arc surface of the bending block 7 as the bending radius, so that the pressing pin will not break or crack when it is bent due to the small bending radius, thereby ensuring the production quality of the pressing pin.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A bending device for pressing needles, characterized in that: It includes an arrangement cavity, one side of which is provided with a bending die, the bending die is a concave die with a V-shaped cross-section, a telescopic arc seat is provided at the bottom end of the concave die of the bending die, a plurality of positioning grooves are provided on the bending die, both ends of the positioning grooves are slidably connected with a fixed-size plate, a telescopic groove is provided on the other side of the arrangement cavity, a bending block is slidably connected in the telescopic groove, the top of the bending block is provided with an arc surface corresponding to the arc seat, a feed port is provided at the top of the arrangement cavity, and a pull-out cover is provided at the bottom end of the arrangement cavity.
2. The bending device for pressing needles according to claim 1, characterized in that: The bottom end angle of the concave die of the bending die is less than 90 degrees.
3. The bending device for pressing pin processing according to claim 1, characterized in that: The bending die is provided with a supporting cavity for the arc seat to retract, the arc seat is fixedly connected with a spring, the other end of the spring is fixedly connected with the supporting cavity, and staggered platforms are provided on both sides of the supporting cavity.
4. The bending device for pressing pin processing according to claim 1, characterized in that: Two vertical grooves are provided on one side of the telescopic groove on the arrangement chamber, and extendable pressure rods are provided in the two grooves. Two pushing shafts are fixedly connected to each of the pressure rods, and a connecting plate is fixedly connected between the pushing shafts. One side of the telescopic groove on the arrangement chamber is fixedly connected to a casing, and a clamping cylinder is fixedly connected to the casing, and a push rod of the clamping cylinder is fixedly connected to the connecting plate.
5. The bending device for pressing needles according to claim 4, characterized in that: A bending cylinder is fixedly connected to the casing, and a push rod of the bending cylinder is fixedly connected to the bending block.
6. The bending device for pressing needles according to claim 4, characterized in that: The casings at both ends of the arrangement cavity are fixedly connected with electric push rods, and the push rods of the electric push rods are fixedly connected with the fixed-length plate.