Hardware die with retractable punching needle

Abstract

The hardware die comprises an upper die set used for punching and a lower die set arranged below the upper die set, a containing groove is formed in the bottom of the upper die set, a punching needle head is arranged at the position, close to the bottom, in the containing groove, the top end of the punching needle head is in threaded connection with an annular block, and the annular block is in threaded connection with the lower die set. And limiting grooves are formed in the positions, close to the bottom, of the two sides in the containing groove, a cavity is formed in the ring block, limiting clamping blocks are arranged in the positions, close to the two sides, in the ring block, and fixing rods are fixedly connected to the bottoms of the limiting clamping blocks. According to the hardware mold with the retractable punching needle, by arranging the ring block, the connecting spring, the containing groove, the limiting clamping block and the fixing rod, when the hardware mold with the retractable punching needle is used, a retracting mechanism of the punching needle head is simplified, the overall cost is low, using is convenient and fast, convenience is brought to a user, the practicability of the hardware mold is improved, and the using requirement of the user is met.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware moulds, in particular to a hardware mould with a retractable punching pin. Background Art

[0002] Hardware molds generally refer to stamping molds, which are special process equipment used to process materials (metal or non-metal) into parts (or semi-finished products) in cold stamping. They are called cold stamping molds (commonly known as cold stamping molds). Stamping is a pressure processing method that uses a mold installed on a press to apply pressure to the material at room temperature to separate or plastically deform it, thereby obtaining the required parts.

[0003] The comparative document "A hardware mold with a retractable punch needle", announcement number (CN219703166U), by twisting the worm, the worm drives the worm wheel, the worm wheel drives gear one, gear one drives gear two to rotate, gear two pushes the rack to move up and down, and the rack moves when it drives the punch needle to move up and down, and the punch needle is retracted into the needle bin for storage, so that when the punch needle is not needed, the punch needle cannot be retracted for protection and is easily damaged by other objects. After the punch needle is damaged, it must be replaced with a new one before it can continue to be used, which greatly increases the cost.

[0004] However, when the hardware mold is in use, the mechanism for retracting the punching needle is relatively complicated and the cost is relatively high, which brings inconvenience to the user and can no longer meet the user's needs. Utility Model Content

[0005] The purpose of the utility model is to provide a hardware mold with a retractable punching needle, so as to solve the problem in the above background technology that when the hardware mold is used, the mechanism for retracting the punching needle is relatively complicated and the cost is high, which brings inconvenience to the user and can no longer meet the user's use needs.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hardware mold with a retractable punching needle, comprising an upper mold group for stamping, and a lower mold group arranged below the upper mold group, a receiving groove is provided at the bottom of the upper mold group, a punching needle head is provided at the bottom position in the receiving groove, a ring block is threadedly connected to the top end of the punching needle head, limiting grooves are provided at the bottom positions on both sides of the receiving groove, a cavity is provided inside the ring block, limiting blocks are provided at both sides of the ring block, and a fixing rod is fixedly connected to the bottom of the limiting block.

[0007] Furthermore, the number of the accommodating grooves is several, the accommodating grooves and the upper die set are integrated, and guide sleeves are fixedly provided at the four corners of the bottom of the upper die set.

[0008] Furthermore, a punching hole is fixedly provided at the top of the lower die set, and the punching hole and the punching needle are designed to correspond to each other up and down, and the bottom end of the punching needle passes through the accommodating groove and extends to the outside thereof.

[0009] Furthermore, guide pillars are fixedly provided at the four corners of the top of the lower mold assembly, the bottom of the fixing rod passes through the slide slot and extends to the outside thereof, and the fixing rod is slidably connected to the slide slot.

[0010] Furthermore, the outer wall of the ring block contacts the inner wall of the accommodating groove, and the ring block and the accommodating groove are movably connected.

[0011] Furthermore, a connecting spring is fixedly provided on the top end of the ring block, and the top end of the connecting spring is fixedly connected to the top end in the accommodating groove.

[0012] Furthermore, sliding grooves are provided on both sides of the bottom of the ring block, and the opposite sides of the two limiting blocks penetrate the ring block and extend to the inside of the limiting grooves, and the limiting blocks are clamped with the limiting grooves.

[0013] Furthermore, a support spring is provided on one side opposite to the two limit blocks, and both ends of the support spring are fixedly connected to the limit blocks.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The hardware mold with a retractable punching needle simplifies the retracting mechanism of the punching needle when the device is in use by providing a ring block, a connecting spring, a receiving groove, a limit block and a fixing rod, and has a low overall cost and is easy to use, which brings convenience to the user, improves the practicability of the device and meets the user's usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 3 for Figure 2 A is a partial enlarged schematic diagram;

[0019] Figure 4 It is a schematic diagram of the punching needle, ring block and connecting spring of the utility model.

[0020] In the figure: 1. upper die assembly; 2. lower die assembly; 3. receiving groove; 4. stamping needle; 5. punching hole; 6. guide sleeve; 7. ring block; 8. limit groove; 9. limit block; 10. slide groove; 11. fixing rod; 12. guide column; 13. connecting spring; 14. supporting spring. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below with reference to the accompanying drawings and through specific embodiments. The following embodiments are merely illustrative and not limiting of the protection scope of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution: a hardware mold with a retractable punching needle, comprising an upper die set 1 for punching, the upper die set 1 is used for punching products, a lower die set 2 is arranged below the upper die set 1, the lower die set 2 is used to place products, a receiving groove 3 is opened at the bottom of the upper die set 1, the receiving groove 3 is used to accommodate a punching needle 4, a punching needle 4 is arranged at the bottom of the receiving groove 3, the punching needle 4 is used to punch and form the product, and the top of the punching needle 4 is threadedly connected with The ring block 7 is used to set the corresponding components. Limiting grooves 8 are provided at the bottom positions on both sides of the accommodating groove 3. The limiting grooves 8 are used to be clamped with the limiting clamping blocks 9. A cavity is provided inside the ring block 7. Limiting clamping blocks 9 are provided at both sides of the ring block 7. After the limiting clamping blocks 9 are clamped with the limiting grooves 8, the ring block 7 can be limited. A fixing rod 11 is fixedly connected to the bottom of the limiting clamping block 9. The fixing rod 11 is connected to the limiting clamping block 9 and can drive the limiting clamping block 9 to move.

[0023] Furthermore, there are several accommodating grooves 3, and the accommodating grooves 3 and the upper mold assembly 1 are integrated into one design. Guide sleeves 6 are fixedly provided at the four corners of the bottom of the upper mold assembly 1, wherein the accommodating grooves 3 are used to accommodate the stamping needles 4, and the guide sleeves 6 are used to cooperate with the guide columns 12.

[0024] Furthermore, a punching hole 5 is fixedly provided at the top of the lower mold assembly 2, and the punching hole 5 and the punching needle 4 are designed to correspond to each other up and down. The bottom end of the punching needle 4 passes through the accommodating groove 3 and extends to the outside thereof, wherein the punching hole 5 is used in conjunction with the punching needle 4 to stamp and form the material.

[0025] Furthermore, guide columns 12 are fixedly provided at the four corners of the top of the lower mold assembly 2, the bottom of the fixed rod 11 passes through the slide groove 10 and extends to the outside thereof, and the fixed rod 11 is slidably connected to the slide groove 10, wherein the guide column 12 is used in conjunction with the guide sleeve 6 to guide the mold.

[0026] Furthermore, the outer wall of the ring block 7 contacts the inner wall of the receiving groove 3, and the ring block 7 is movably connected to the receiving groove 3, wherein the ring block 7 is used to set the corresponding components.

[0027] Furthermore, a connecting spring 13 is fixedly provided at the top of the ring block 7, and the top of the connecting spring 13 is fixedly connected to the top of the accommodating groove 3, wherein the connecting spring 13 can drive the ring block 7 to move upward.

[0028] Furthermore, sliding grooves 10 are provided on both sides of the bottom of the ring block 7, and the opposite sides of the two limit blocks 9 penetrate the ring block 7 and extend to the inside of the limit groove 8, and the limit blocks 9 are clamped with the limit groove 8. The ring block 7 can be limited by the coordinated use of the limit blocks 9 and the limit groove 8.

[0029] Furthermore, a support spring 14 is provided on one side opposite to the two limit blocks 9, and both ends of the support spring 14 are fixedly connected to the limit blocks 9, wherein the support spring 14 can exert a force on the limit blocks 9 to make the limit blocks 9 extend outward.

[0030] Working principle: when the user needs to retract the stamping needle 4, the user moves the two fixing rods 11 in the direction close to the stamping needle 4. The movement of the fixing rods 11 will drive the limit block 9 to move, so that the limit block 9 will move out of the limit groove 8. Then the user pushes the stamping needle 4 downward to move the limit block 9 to the upper position of the limit groove 8. Then the user releases the stamping needle 4, which will drive the ring block 7 to move upward under the traction of the connecting spring 13. The upward movement of the ring block 7 will drive the stamping needle 4 at the bottom to retract.

[0031] According to the above working process, we can know:

[0032] The hardware mold with a retractable punching needle simplifies the retracting mechanism of the punching needle 4 when the device is in use by providing a ring block 7, a connecting spring 13, a receiving groove 3, a limit block 9 and a fixing rod 11, and the overall cost is low, and it is easy to use, which brings convenience to the user, improves the practicality of the device, and meets the user's usage needs.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal die with a retractable punching needle, comprising an upper die set (1) for punching, and a lower die set (2) arranged below the upper die set (1), characterized in that: The bottom of the upper mold assembly (1) is provided with a receiving groove (3), a punching needle (4) is arranged near the bottom of the receiving groove (3), a ring block (7) is threadedly connected to the top of the punching needle (4), limiting grooves (8) are arranged near the bottom on both sides of the receiving groove (3), a cavity is arranged inside the ring block (7), limiting clamping blocks (9) are arranged near both sides of the ring block (7), and a fixing rod (11) is fixedly connected to the bottom of the limiting clamping block (9).

2. A hardware mold with a retractable punching needle according to claim 1, characterized in that: The number of the accommodating grooves (3) is several, the accommodating grooves (3) and the upper die set (1) are of integrated design, and guide sleeves (6) are fixedly provided at the four corners of the bottom of the upper die set (1).

3. A hardware mold with a retractable punching needle according to claim 1, characterized in that: A punching hole (5) is fixedly provided at the top of the lower die set (2), and the punching hole (5) and the punching needle (4) are designed to correspond to each other from top to bottom. The bottom end of the punching needle (4) passes through the accommodating groove (3) and extends to the outside thereof.

4. The hardware mold with a retractable punching needle according to claim 1, characterized in that: Guide pillars (12) are fixedly arranged at the four corners of the top of the lower mold assembly (2); the bottom of the fixed rod (11) passes through the slide groove (10) and extends to the outside thereof; the fixed rod (11) is slidably connected to the slide groove (10).

5. The hardware mold with a retractable punching needle according to claim 1, characterized in that: The outer wall of the ring block (7) contacts the inner wall of the accommodating groove (3), and the ring block (7) and the accommodating groove (3) are movably connected.

6. The hardware mold with a retractable punching needle according to claim 1, characterized in that: A connecting spring (13) is fixedly provided at the top end of the ring block (7), and the top end of the connecting spring (13) is fixedly connected to the top end in the accommodating groove (3).

7. The hardware mold with a retractable punching needle according to claim 1, characterized in that: The bottom of the ring block (7) is provided with sliding grooves (10) on both sides, and the opposite sides of the two limiting clamping blocks (9) penetrate the ring block (7) and extend to the inside of the limiting groove (8), and the limiting clamping blocks (9) are clamped with the limiting groove (8).

8. The hardware mold with a retractable punching needle according to claim 1, characterized in that: A support spring (14) is provided on one side opposite to the two limit clamping blocks (9), and both ends of the support spring (14) are fixedly connected to the limit clamping blocks (9).

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