Material belt initial positioning structure of progressive die
By adding a starting float and a limiting component to the front section of the progressive die, precise positioning of the strip is achieved, solving the problem of positional deviation during the first stamping of the strip, reducing waste and die damage, and improving production efficiency.
Patent Information
- Application Number
- CN202422023326.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-08-20
AI Technical Summary
In existing progressive die stamping technology, deviation in the first stamping position of the strip leads to an increase in scrap. Incomplete scrap jumps out of the die and creates an imprint, increasing the defect rate and die maintenance costs, especially in double-row dies where the impact is more pronounced.
Adding a starting float pin to the front of the mold and controlling its extension and retraction through a limiting component enables precise positioning of the strip, ensuring the integrity of the scrap after the first stamping and preventing damage to the punch and die.
Precise positioning reduces incomplete waste, lowers the probability of die damage, increases the success rate of threading on the first attempt, improves production efficiency, and saves threading time.
Smart Images
Figure CN223518480U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of progressive die stamping technology field especially relates to a material belt initial positioning structure of progressive die. BACKGROUND
[0002] In the prior art of progressive die stamping technology field, the material belt is first threaded into the front section of the die for stamping the first pilot pin hole, and the specific position is located between the pilot pin punch and the first pilot pin. After the first pilot pin hole is punched out, the material belt is fed back according to the step distance.
[0003] However, the position is usually determined by experience and the naked eye during the first stamping, which may deviate from the ideal position, resulting in many incomplete waste materials when the material belt is threaded into the back of the die. These incomplete waste materials may jump out of the concave die, causing pressure marks on the product, increasing the defect rate, and even causing the phenomenon of broken blades and fractures for some small convex dies, greatly increasing the cost of die maintenance and reducing production efficiency. This problem is more obvious for double-row dies. To solve this problem, the waste materials that run out are usually blown clean with an air gun after each stamping, but the first step may not be fed in place, resulting in the phenomenon of broken blades and running waste materials. SUMMARY
[0004] The technical problem to be solved by the utility model is that the utility model provides a material belt initial positioning structure of progressive die to solve the technical problems in the prior art. The material belt is accurately positioned after the initial floating pin is added to the front section of the die, and then stamped, ensuring the integrity of the waste materials, effectively preventing the generation of incomplete waste materials, and reducing the probability of damage to the convex and concave dies.
[0005] The technical solution adopted by the utility model to solve the technical problem is a material belt initial positioning structure of progressive die, which is arranged in the lower die below the upper die and includes an initial floating pin that slides in the lower die along the connecting line direction of the upper die and the lower die. The initial floating pin has an extended state and a retracted state. A limiting component is arranged in the lower die and in contact with the initial floating pin to control the switching of the initial floating pin between the extended state and the retracted state. When the initial floating pin is in the extended state, one end of the initial floating pin extends out of the lower die to position the material belt. When the initial floating pin is in the retracted state, the initial floating pin is located in the lower die to move the material belt above the initial floating pin.
[0006] The utility model discloses a material belt initial positioning structure of progressive die, through the setting of starting float bolt, when starting float bolt is in the state of protruding, can facilitate material belt to realize accurate positioning and then stamping, guarantee the integrity of waste material, effectively prevent the generation of incomplete waste material, prevent the generation of male and female die damage and product pressure mark, greatly save the time of wearing material, promote the success rate of once wearing material, improve actual production efficiency, and after first time stamping, starting float bolt enters the retracted state, does not influence the subsequent feeding of material belt.
[0007] Further, the starting float bolt is connected with a first elastic member at one end away from the upper die, and the first elastic member applies pressure to the starting float bolt to move the starting float bolt towards the upper die.
[0008] Further, the limiting assembly comprises a limiting rod sliding in the lower die, the starting float bolt is provided with a first limiting block, and when the limiting rod contacts the top surface of the first limiting block, the starting float bolt is in the retracted state; when the limiting rod is below the first limiting block, the starting float bolt is in the protruding state.
[0009] Further, the first limiting block is provided with a tapered surface at the lower part, the large end of the tapered surface is arranged close to the upper die, the limiting rod is provided with a second elastic member at one end away from the starting float bolt, and the second elastic member applies pressure to the limiting rod to move the limiting rod towards the starting float bolt.
[0010] Further, the starting float bolt is provided with a second limiting block, and when the starting float bolt is in the protruding state, the limiting rod is located between the first limiting block and the second limiting block.
[0011] Further, the limiting assembly further comprises a mounting plate connected with the lower die, the limiting rod is connected with a stopper, one end of the second elastic member abuts against the mounting plate, and the other end abuts against the stopper.
[0012] Further, one end of the limiting rod protrudes from the lower die and the mounting plate and is connected with a handle.
[0013] Further, the top of the starting float bolt is provided with an anti-scratch ball head.
[0014] Further, the lower die is provided with a screw plug, one end of the first elastic member abuts against the screw plug, and the other end abuts against the second limiting block.
[0015] Further, the first elastic member and the second elastic member are compression springs.
[0016] The utility model discloses a material belt initial positioning structure of progressive die, through the setting of starting float bolt, when starting float bolt is in the state of protruding, can facilitate material belt to realize accurate positioning and then stamping, guarantee the integrity of waste material, effectively prevent the generation of incomplete waste material, prevent the generation of male and female die damage and product pressure mark, greatly save the time of wearing material, promote the success rate of once wearing material, improve actual production efficiency, and after first time stamping, starting float bolt enters the retracted state, does not influence the subsequent feeding of material belt.
[0017] 1. By setting the starting floating pin, when the starting floating pin is in the extended state, the material belt can be precisely positioned before stamping, ensuring the integrity of the waste material, effectively preventing the generation of incomplete waste material, preventing the damage of the punch and die, and preventing the generation of product stamping, greatly saving the time of material threading, improving the success rate of one-time threading, and improving the actual production efficiency; at the same time, after the first stamping, the starting floating pin enters the retracted state, which does not affect the subsequent feeding of the material belt.
[0018] 2. By setting the second elastic element, the limiting rod, the first limiting block and the conical surface, when the upper die is pressed down, the starting floating pin is pressed down by the upper die, the conical surface applies pressure to the limiting rod, so that the limiting rod moves away from the starting floating pin against the pressure of the second elastic element, and then the starting floating pin continues to move downward, until the first limiting block moves below the limiting rod, at this time the limiting rod moves above the first limiting block towards the starting floating pin under the action of the second elastic element, and blocks the first limiting block, so that the starting floating pin enters the retracted state.
[0019] 3. By setting the handle, the limiting rod and the first elastic element, when the starting floating pin needs to enter the extended state, pull the handle, the limiting rod moves away from the starting floating pin, and then the starting floating pin extends out of the lower die under the action of the first elastic element, so as to position the material belt. BRIEF DESCRIPTION OF DRAWINGS
[0020] The utility model will be further described below in combination with the drawings and examples.
[0021] Fig. 1 is the structure schematic view that the starting floating pin is in the extended state in the material belt initial positioning structure of the progressive die in the utility model.
[0022] Fig. 2 is the structure schematic view that the starting floating pin is in the retracted state in the utility model.
[0023] Fig. 3 is the top view schematic view of the starting floating pin in the utility model.
[0024] In the drawing: 1, lower die;2, upper die;3, starting floating pin;31, first limiting block;311, conical surface;32, second limiting block;33, anti-scratch ball head;34, first elastic element;35, plug;4, limiting assembly;41, mounting plate;42, limiting rod;421, stop block;422, handle;43, second elastic element;5, material belt. DETAILED DESCRIPTION
[0025] The utility model will be further described below in combination with the drawings and examples.
[0026] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In addition, the features limited by "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise stated, the meaning of "multiple" is two or more. In the description of the utility model, it needs to be explained that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0027] The utility model discloses a material belt initial positioning structure of progressive die.
[0028] Refer to Figs. 1 to 3 A material belt initial positioning structure of progressive die is arranged in the lower die 1 and is located below the upper die 2. The initial positioning structure includes a starting floating pin 3 and a limiting assembly 4. The starting floating pin 3 slides in the lower die 1 along the connecting line direction of the upper die 2 and the lower die 1, and the starting floating pin 3 has an extended state and a retracted state. The limiting assembly 4 is arranged in the lower die 1, and the limiting assembly 4 is in contact with the starting floating pin 3 to control the switching of the starting floating pin 3 between the extended state and the retracted state. When the starting floating pin 3 is in the extended state, one end of the starting floating pin 3 extends out of the lower die 1 to position the material belt 5. When the starting floating pin 3 is in the retracted state, the starting floating pin 3 is located in the lower die 1 to move the material belt 5 above the starting floating pin 3.
[0029] When working, the starting floating pin 3 is used to accurately position the material belt 5 before stamping, which ensures the integrity of the waste material, effectively prevents the generation of incomplete waste material, prevents the damage of the punch and die and the generation of product stamping, greatly saves the material threading time, improves the success rate of one-time material threading, and improves the actual production efficiency.
[0030] Specifically, the first elastic member 34 is connected to the end of the starting floating pin 3 away from the upper die 2, and the first elastic member 34 applies a pressure to the starting floating pin 3 so that the starting floating pin 3 moves towards the upper die 2. The lower die 1 is provided with a screw plug 35, one end of the first elastic member 34 abuts against the screw plug 35, and the other end abuts against the second limiting block 32, and the first elastic member 34 can be a compression spring. The top of the starting floating pin 3 is integrally formed with a scratchproof ball head 33 to reduce the possibility of damaging the upper die 2 when in contact with the upper die 2.
[0031] More specifically, the limiting assembly 4 includes a mounting plate 41 and a limiting rod 42 sliding in the lower die 1, and the mounting plate 41 is fixedly connected to the side wall of the lower die 1 by bolts. The starting floating pin 3 is integrally formed with a first limiting block 31, and when the limiting rod 42 is in contact with the top surface of the first limiting block 31, the starting floating pin 3 is in the retracted state. The starting floating pin 3 is integrally formed with a second limiting block 32, and the second limiting block 32 is located below the first limiting block 31, and when the starting floating pin 3 is in the extended state, the limiting rod 42 is located between the first limiting block 31 and the second limiting block 32.
[0032] The lower part of the first limiting block 31 is provided with a tapered surface 311, the large end of the tapered surface 311 is arranged close to the upper die 2, and the end of the limiting rod 42 away from the starting floating pin 3 is provided with a second elastic member 43, and the second elastic member 43 applies a pressure to the limiting rod 42 so that the limiting rod 42 moves towards the starting floating pin 3. The limiting rod 42 is connected with a stop block 421, one end of the second elastic member 43 abuts against the mounting plate 41, and the other end abuts against the stop block 421. The second elastic member 43 can be a compression spring. The small end of the tapered surface 311 has the same diameter as the starting floating pin 3, and the large end of the tapered surface 311 has the same diameter as the first limiting block 31. Through the arrangement of the second elastic member 43, the limiting rod 42, the first limiting block 31 and the tapered surface 311, when the upper die 2 is pressed down, the upper die 2 will press down the starting floating pin 3, the tapered surface 311 will apply a pressure to the limiting rod 42, so that the limiting rod 42 overcomes the pressure of the second elastic member 43 and moves away from the starting floating pin 3, and then the starting floating pin 3 continues to move downwards, until the first limiting block 31 moves below the limiting rod 42, at this time the limiting rod 42 moves above the first limiting block 31 towards the starting floating pin 3 under the action of the second elastic member 43, and blocks the first limiting block 31, so that the starting floating pin 3 enters the retracted state.
[0033] In addition, one end of the limiting rod 42 extends out of the lower die 1 and the mounting plate 41 and is threadedly connected with a handle 422, facilitating an operator to pull the limiting rod 42, and the handle 422 also facilitates cooperation with the mounting plate 41 to axially limit the limiting rod 42. Through the handle 422, the limiting rod 42 and the first elastic member 34, when it is required to start the float pin 3 to enter the extended state, the handle 422 is pulled, the limiting rod 42 moves towards the direction away from the starting float pin 3, and then the starting float pin 3 is extended out of the lower die 1 under the action of the first elastic member 34, so as to position the material belt 5.
[0034] Working principle: through the setting of the starting float pin 3, when the starting float pin 3 is in the extended state, the material belt 5 can be precisely positioned and then punched, the integrity of the waste material is ensured, the generation of incomplete waste material is effectively prevented, the damage of the punch and die and the generation of product indentation are prevented, the time for threading the material is greatly saved, the success rate of one-time threading is improved, and the actual production efficiency is improved; meanwhile, after the first punching, the starting float pin 3 enters the retracted state, without affecting the subsequent feeding of the material belt 5.
[0035] Through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of the claims.
Claims
1. A material tape initial positioning structure of a progressive die, which is provided in a lower die (1) and is located below an upper die (2), characterized in that, The utility model relates to a starting floating nail (3) is slid in the lower mould (1) along the line direction of upper mould (2) and lower mould (1), and the starting floating nail (3) has the extended state and the retracted state; The limiting assembly (4) is arranged in the lower mould (1), and the limiting assembly (4) is in contact with the starting floating nail (3) to control the starting floating nail (3) to switch between the extended state and the retracted state; When the starting floating nail (3) is in the extended state, one end of the starting floating nail (3) extends out of the lower mould (1) to position the material belt (5). When the starting floating nail (3) is in the retracted state, the starting floating nail (3) is located in the lower mould (1) to move the material belt (5) above the starting floating nail (3). One end of the starting floating nail (3) away from the upper mould (2) is connected with the first elastic member (34), and the first elastic member (34) applies pressure to the starting floating nail (3) to make the starting floating nail (3) move towards the upper mould (2).
2. The initial positioning structure of a material strip of a progressive die according to claim 1, wherein The limiting assembly (4) includes a limiting rod (42) sliding in the lower mould (1), the starting floating nail (3) is provided with a first limiting block (31), when the limiting rod (42) is in contact with the top surface of the first limiting block (31), the starting floating nail (3) is in the retracted state, and when the limiting rod (42) is below the first limiting block (31), the starting floating nail (3) is in the extended state.
3. The initial positioning structure of a material strip of a progressive die according to claim 2, wherein The lower part of the first limiting block (31) is provided with a tapered surface (311), the large end of the tapered surface (311) is arranged close to the upper mould (2), one end of the limiting rod (42) away from the starting floating nail (3) is provided with a second elastic member (43), and the second elastic member (43) applies pressure to the limiting rod (42) to make the limiting rod (42) move towards the starting floating nail (3).
4. The initial positioning structure of a material strip of a progressive die according to claim 3, wherein The starting floating nail (3) is provided with a second limiting block (32), when the starting floating nail (3) is in the extended state, the limiting rod (42) is located between the first limiting block (31) and the second limiting block (32).
5. A progressive die strip initial positioning structure according to claim 3, wherein The limiting assembly (4) further includes a mounting plate (41), the mounting plate (41) is connected with the lower mould (1), the limiting rod (42) is connected with a stop block (421), one end of the second elastic member (43) is in abutment with the mounting plate (41), and the other end is in abutment with the stop block (421).
6. A progressive die strip initial positioning structure according to claim 4, wherein One end of the limiting rod (42) extends out of the lower mould (1) and the mounting plate (41) and is connected with a handle (422).
7. A progressive die strip initial positioning structure according to claim 6, wherein The top of the starting floating nail (3) is provided with an anti-scratch ball head (33).
8. A progressive die strip initial positioning structure according to claim 7, wherein The lower mould (1) is provided with a screw plug (35), one end of the first elastic member (34) is in abutment with the screw plug (35), and the other end is in abutment with the second limiting block (32).
9. A progressive die strip initial positioning structure according to claim 5 wherein, The first elastic member (34) and the second elastic member (43) adopt compression springs.
10. The initial positioning structure of a material strip of a progressive die according to claim 4, wherein