Snap fastener binding die

Abstract

According to the snap fastener binding die, a fixed base, a movable fastener binding piece, a first elastic piece and an ejector pin assembly are arranged in a matched mode, when a face fastener and a female fastener are riveted through the die, external equipment drives the die to move towards the face fastener, and when the movable fastener binding piece hits a copper pipe of the face fastener, an ejector pin with lubricating oil makes contact with the copper pipe firstly; lubricating oil is coated on the copper pipe, then the movable fastener strikes the copper pipe of the surface buckle, the copper pipe is turned up, and then riveting of the surface buckle and the female buckle is completed; the second elastic piece controls the ejector pin to move, lubricating oil is contained in the ejector pin assembly containing groove, binding and lubricating oil adding on the ejector pin can be achieved at the same time, the lubricating oil can be added on a copper pipe during beating each time, the copper pipe falling or breaking condition can be greatly improved, the surface buckle and female buckle riveting reject ratio is greatly reduced, and meanwhile the binding efficiency is improved. The die has the lubricating effect of lubricating oil, and the service life of the die can be prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of snap fastener molds, specifically a four-piece snap fastener binding mold. Background Technology

[0002] Snap fasteners are a common type of fastener, also known as spring snaps, sewn buttons, or hand-sewn buttons. They are widely used in clothing, bags, shoes, and hats.

[0003] When using snap fasteners, the face buckle and the female buckle need to be riveted to the fabric using a mold. During the riveting process, the copper tube on the face buckle needs to be rolled up using the mold to increase the diameter of the copper tube and fix it in the round hole in the middle of the female buckle. Moreover, due to the needs of the process, the face buckle needs to be electroplated or painted. Electroplating or painting can easily cause the hardness and tensile properties of the copper tube to deteriorate. When the face buckle and the female buckle are riveted together using the mold, it is easy for the copper tube to buckle or the copper material to break when it is rolled up. Utility Model Content

[0004] Therefore, it is necessary to provide a four-piece snap fastener binding mold. This can solve the problem of the buckle breaking or the copper material breaking when the copper tube is rolled up.

[0005] A snap fastener assembly mold includes a fixed base, a movable snap fastener, a first elastic element, and an ejector pin assembly;

[0006] The movable base has a hollow structure. The movable fastener includes a mounting base and a movable fastener head. One end of the movable fastener head is movably installed inside the fixed base and can move along the axial direction of the movable base. Both ends of the first elastic member abut against the outer layer of the mounting base of the fixed base and the movable fastener respectively. The mounting base has a pin assembly receiving groove for receiving the pin assembly. The bottom of the mounting base has an oil inlet hole that communicates with the pin assembly receiving groove. The movable fastener head has a pin receiving hole that communicates with the pin assembly receiving groove.

[0007] The ejector pin assembly includes an ejector pin and a second elastic element. One end of the second elastic element is installed in the ejector pin assembly receiving groove near the oil inlet, and the other end is fixedly connected to the ejector pin. The ejector pin head is received in the ejector pin receiving hole. The ejector pin head is driven by the second elastic element to slide axially in the ejector pin receiving hole. The ejector pin assembly receiving groove contains lubricating oil.

[0008] In one embodiment, the inner layer of the oil inlet hole of the ejector pin assembly has an internal thread, which is used to engage with an external screw to seal the oil inlet hole.

[0009] In one embodiment, the fixed base has a first annular boss, the mounting base has a second annular boss, and the two ends of the first elastic member abut against the first annular boss and the second annular boss, respectively.

[0010] In one embodiment, the movable buckle head is a cylindrical structure, and the movable buckle head is used to roll up the copper tube of the face buckle.

[0011] In one embodiment, the shape and size of the ejector head are adapted to the shape and size of the ejector receiving hole.

[0012] In one embodiment, the movable fastener has a limiting stop that abuts against the inner layer of the first annular boss when the movable fastener moves axially along the fixed base.

[0013] In one embodiment, the mounting base and the movable pin head are integrally formed.

[0014] In one embodiment, the first elastic element and the second elastic element are springs.

[0015] The aforementioned four-piece snap fastener assembly mold, through the coordinated arrangement of a fixed base, movable snap fastener, first elastic element, and ejector pin assembly, allows external equipment to move the mold towards the snap fastener when the face snap and the female snap fastener are riveted together. When the movable snap fastener strikes the copper tube of the face snap, the ejector pin, which is lubricated, first contacts the copper tube, applying lubricant to it. Then, the movable snap fastener strikes the copper tube of the face snap, completing the coiling of the copper tube and thus completing the riveting of the face snap and the female snap fastener. The second elastic element controls the movement of the ejector pin, and the ejector pin assembly has lubricating oil in its receiving groove, allowing lubricant to be added to the ejector pin while the fastener is being assembled. Adding lubricant to the copper tube with each strike can greatly improve the chance of the copper tube sinking or breaking, significantly reducing the failure rate of the face snap and the female snap fastener riveting. At the same time, the lubricating oil in the mold can also extend the service life of the mold. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly structure of a four-piece snap fastener binding mold according to an embodiment of the present invention;

[0017] Figure 2 for Figure 1 A cross-sectional view of a four-button binding mold according to an embodiment of this utility model. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0019] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediary component present. Conversely, when a component is said to be "directly" connected to another component, there is no intermediary component.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] like Figure 1 and Figure 2 As shown, a snap fastener assembly mold includes a fixed base 1, a movable snap fastener 2, a first elastic element 3, and an ejector pin assembly 4.

[0022] The movable base 1 has a hollow structure. The movable fastener 2 includes a mounting base 21 and a movable fastener head 22. One end of the movable fastener head 21 is movably installed in the fixed base 1 and can move along the axial direction of the movable base 1. The two ends of the first elastic member 3 respectively abut against the outer layer of the mounting base 21 of the fixed base 1 and the movable fastener 2. The mounting base 21 has a pin assembly receiving groove 213 for receiving the pin assembly 4. The bottom of the mounting base 21 has an oil inlet hole 211, which is connected to the pin assembly receiving groove 213. The movable fastener head 22 has a pin receiving hole 221, which is connected to the pin assembly receiving groove 213.

[0023] The ejector pin assembly 4 includes an ejector pin 41 and a second elastic element 42. One end of the second elastic element 42 is installed in the ejector pin assembly receiving groove 213 near the oil inlet 211, and the other end is fixedly connected to the ejector pin 41. The ejector pin head 411 of the ejector pin 41 is housed in the ejector pin receiving hole 221. The ejector pin head 411 is driven by the second elastic element 42 to slide axially in the ejector pin receiving hole 221. The ejector pin assembly receiving groove 213 contains lubricating oil.

[0024] The first elastic element 3 and the second elastic element 42 are springs; the fixed base 1 has a first annular boss 11, and the mounting base 21 has a second annular boss 212. The two ends of the first elastic element 3 abut against the first annular boss 11 and the second annular boss 212 respectively; the movable rivet head 22 is a cylindrical structure and is used to roll up the copper tube of the face buckle; the mounting base 21 and the movable rivet head 22 are integrally formed.

[0025] In the initial state, the ejector head 411 of the ejector pin 41 is controlled by the second elastic element 42 and protrudes beyond the ejector pin receiving hole 221. When subjected to external pressure, the second elastic element 42 elastically retracts, causing the ejector head 411 to retract into the ejector pin receiving hole 221. The ejector pin assembly receiving groove 213 contains lubricating oil, so the ejector pin receiving hole 221 also contains lubricating oil. When the ejector head 411 retracts into the ejector pin receiving hole 221, the ejector head 411 can also be coated with lubricating oil.

[0026] During the riveting of the face buckle and the female buckle, the external equipment moves the mold towards the face buckle until the ejector pin 411 contacts the copper tube of the face buckle. At this point, because the ejector pin 411 is coated with lubricating oil, the lubricating oil is applied to the copper tube of the face buckle upon contact. After contact with the copper tube of the face buckle, the ejector pin 411 retracts into the ejector pin receiving hole 221 under the action of the copper tube, and the lubricating oil is reapplied to the ejector pin 411. At this time, the second elastic element 42 is in an elastically compressed state. After the ejector pin 411 retracts, the movable pin head 21 of the movable fastener 2 impacts the copper tube of the face buckle, causing the copper tube on the face buckle to curl. After the copper tube is curled, the external equipment moves the mold away from the face buckle, and the second elastic element 42 returns to its original shape, ejecting the lubricated ejector pin 411 from the ejector pin receiving hole 221.

[0027] In this way, the four-button fastening mold, through the coordinated arrangement of the fixed base 1, the movable fastener 2, the first elastic element 3, and the ejector pin assembly 4, allows the external equipment to move the mold towards the face buckle when the face buckle and the female buckle are riveted together. When the movable fastener strikes the copper tube of the face buckle, the ejector pin 41, which is lubricated, will first contact the copper tube and apply lubricating oil to it. Then, the movable fastener strikes the copper tube of the face buckle, completing the coiling of the copper tube and thus completing the riveting of the face buckle and the female buckle. The second elastic element 42 controls the movement of the ejector pin 41. The ejector pin assembly receiving groove 213 contains lubricating oil, which allows lubricating oil to be added to the ejector pin 41 while fastening. Adding lubricating oil to the copper tube with each strike can greatly improve the situation of the copper tube sinking or breaking, and greatly reduce the failure rate of the face buckle and the female buckle riveting. At the same time, the lubricating oil in the mold can also extend the service life of the mold.

[0028] In one embodiment, the inner layer of the oil inlet hole 211 of the ejector assembly has an internal thread 2111, which is used to engage with an external screw to seal the oil inlet hole 211.

[0029] In this way, when it is necessary to add lubricating oil into the ejector assembly receiving groove 213, the external screw is unscrewed, the lubricating oil is injected into the ejector assembly receiving groove 213, and then the external screw is tightened, which can quickly complete the lubrication.

[0030] In one embodiment, the shape and size of the ejector head 411 are adapted to the shape and size of the ejector receiving hole 221.

[0031] In this way, the shape and size of the ejector head 411 are matched with the shape and size of the ejector receiving hole 221, which can minimize the leakage of lubricating oil from the open end of the ejector receiving hole 221.

[0032] In one embodiment, the movable fastener 2 has a limiting block 23, which abuts against the inner layer of the first annular boss 11 when the movable fastener 2 moves along the axial direction of the fixed base 1.

[0033] In this way, by setting the limit block 23, the movement position of the movable fastener 2 within the fixed base 1 can be better restricted.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A four-button binding mold, characterized in that: Includes a fixed base, a movable fastener, a first elastic element, and a pin assembly; The fixed base has a hollow structure. The movable fastener includes a mounting base and a movable fastener head. One end of the movable fastener head is movably installed inside the fixed base and can move along the axial direction of the fixed base. Both ends of the first elastic member abut against the outer layer of the mounting base of the fixed base and the movable fastener respectively. The mounting base has a pin assembly receiving groove for receiving the pin assembly. The bottom of the mounting base has an oil inlet hole that communicates with the pin assembly receiving groove. The movable fastener head has a pin receiving hole that communicates with the pin assembly receiving groove. The ejector pin assembly includes an ejector pin and a second elastic element. One end of the second elastic element is installed in the ejector pin assembly receiving groove near the oil inlet, and the other end is fixedly connected to the ejector pin. The ejector pin head is received in the ejector pin receiving hole. The ejector pin head is driven by the second elastic element to slide axially in the ejector pin receiving hole. The ejector pin assembly receiving groove contains lubricating oil.

2. The snap fastener binding mold according to claim 1, characterized in that: The inner layer of the oil inlet hole of the ejector pin assembly has an internal thread, which is used to engage with an external screw to seal the oil inlet hole.

3. The snap fastener binding mold according to claim 1, characterized in that: The fixed base has a first annular boss, and the mounting base has a second annular boss. The two ends of the first elastic member abut against the first annular boss and the second annular boss, respectively.

4. The snap fastener binding mold according to claim 1, characterized in that: The movable rivet head has a cylindrical structure and is used to roll up the copper tube of the face buckle.

5. The snap fastener binding mold according to claim 1, characterized in that: The shape and size of the ejector pin head are adapted to the shape and size of the ejector pin receiving hole.

6. A snap fastener binding mold according to claim 3, characterized in that: The movable fastener has a limiting block, which abuts against the inner layer of the first annular boss when the movable fastener moves along the axial direction of the fixed base.

7. The snap fastener binding mold according to claim 1, characterized in that: The mounting base and the movable buckle head are integrally formed.

8. The snap fastener binding mold according to claim 1, characterized in that: The first elastic element and the second elastic element are springs.

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