Screw positioning and buffering cold heading die

Abstract

The utility model discloses a screw positioning and buffering cold heading die which comprises a cold heading die body, a bottom buffering mechanism and a top buffering mechanism, the bottom buffering mechanism is arranged in the cold heading die body, the top buffering mechanism is arranged in the cold heading die body, and the top buffering mechanism comprises a buffering rod. The buffering rods are arranged at the four corners in the cold heading die, the tops of the buffering rods are fixedly connected with sliding discs, the tops of the sliding discs are fixedly connected with top buffering springs, a pressing disc is arranged in the cold heading die, and the top of the pressing disc is fixedly connected with main buffering springs. By arranging the top buffering mechanism, the upper die can be buffered and protected, then the lower die can be buffered and protected through the bottom buffering mechanism, when a user uses the die, a single spring does not deform after being used for a long time, the user can use the die conveniently, and the die does not deform.

Description

Technical Field

[0001] The utility model relates to the technical field of screw rods, in particular to a screw rod positioning and buffering cold heading die. Background Art

[0002] The screw is a cylindrical or conical screw with spiral grooves cut into its outer surface. Screws have different heads, the first of which is called an external hexagonal screw. Other types exist, such as large flat screws and internal hexagonal screws. They are primarily used in plastic molding equipment, such as plastic profile extruders and injection molding machines. The screw and barrel are the core components of plastic molding equipment. They are the part that heats, extrudes, and plasticizes the material. They are the heart of plastics machinery. Screws are widely used in machining centers, CNC machines, CNC lathes, injection molding machines, wire cutting machines, grinders, milling machines, slow and fast wire cutting machines, PCB drilling machines, precision engraving machines, milling and carving machines, spark discharge machines, gnashing machines, planers, large vertical lathes, and gantry milling machines, among others.

[0003] A screw cold heading mold is required for the production of the screw. For example, a Chinese patent discloses a screw positioning and buffering cold heading mold, with the publication (announcement) number CN106040939A, which includes an upper mold body, an upper buffer spring, an upper buffer block, an upper punch, a lower positioning block, a lower buffer block, a lower buffer spring, a lower punch, and a lower mold body. The present invention enables the screw to be positioned and cold headed in the cold heading mold, and the straightness and verticality of the screw product are stable, and the screw product quality is high. At the same time, a buffer device is provided between the cold heading molds, which effectively reduces the deformation problem caused by the collision between the cold heading molds, saves costs, and improves production efficiency. The above patent effectively reduces the deformation problem caused by the collision between the cold heading molds when used, saves costs, and improves production efficiency, but it cannot improve the buffering effect, resulting in the user's single spring being easily deformed during long-term use, which is inconvenient for the user to use, and the mold is prone to deformation. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the purpose of the present invention is to provide a screw positioning buffer cold heading mold, which has the advantage of being convenient for users to use and solves the problem that the screw cold heading mold is inconvenient for users to use.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a screw positioning buffer cold heading mold, comprising:

[0006] Cold heading mold;

[0007] A bottom buffer mechanism, wherein the bottom buffer mechanism is arranged inside the cold heading mold;

[0008] A top buffer mechanism is arranged inside the cold forging mold, and the top buffer mechanism includes a buffer rod, and the buffer rod is arranged at the four corners inside the cold forging mold. The top of the buffer rod is fixedly connected to a sliding plate, and the top of the sliding plate is fixedly connected to a top buffer spring. A pressure plate is arranged inside the cold forging mold, and the top of the pressure plate is fixedly connected to a main buffer spring.

[0009] As a preferred embodiment of the present invention, the cold heading mold includes a lower mold, the top of the lower mold is provided with a bottom positioning plate, the top of the positioning plate is movably connected to a buffer plate, the top of the buffer plate is provided with an upper mold, the top of the upper mold is movably connected to a fixed plate by bolts and nuts, the buffer rod is fixedly connected to both sides of the top of the buffer plate, the top of the buffer rod passes through the interior of the upper mold, the interior of the upper mold is slidably connected to the surface of the sliding plate, the top of the pressure plate passes through the interior of the upper mold and is slidably connected to the interior of the upper mold, and the top of the main buffer spring is fixedly connected to the bottom of the fixed plate.

[0010] As a preferred embodiment of the present invention, the bottom buffer mechanism includes a connecting rod, which is fixedly connected to the four corners of the bottom of the positioning plate. The bottom of the connecting rod passes through the interior of the lower mold and is fixedly connected to a slide plate. The bottom of the slide plate is fixedly connected to a bottom buffer spring, and the bottom of the bottom buffer spring is fixedly connected to the bottom of the inner wall of the lower mold.

[0011] As a preferred embodiment of the present invention, the surface of the lower mold is movably connected to a connector, the surface of the lower mold is fixedly connected to a connecting ring, and the surface of the connecting ring penetrates into the interior of the connector.

[0012] As a preferred embodiment of the present invention, guide blocks are fixedly connected to both sides of the pressure plate, and guide grooves are provided on both sides of the inner wall of the upper mold at positions corresponding to the guide blocks, and the guide grooves are slidably connected to the guide blocks.

[0013] As a preferred embodiment of the present invention, sliders are fixedly connected to both sides of the slide plate, and sliding grooves are provided on both sides of the inner wall of the lower mold, and the sliding grooves are slidably connected to the sliders.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model can provide buffering protection for the upper mold by setting a top buffer mechanism, and can provide buffering protection for the lower mold by using a bottom buffer mechanism. When the user uses it for a long time, the single spring will not be deformed, which is convenient for the user to use and the mold will not be deformed.

[0016] 2. The utility model can perform cold heading processing on the screw by setting a cold heading mold. The user installs the top buffer mechanism on the upper mold. The upper mold fixes the screw through the top buffer mechanism, and then drives the screw downward through the upper mold and inserts it into the interior of the lower mold from the top of the bottom positioning plate. The screw is cold headed through the lower mold.

[0017] 3. The utility model can protect the lower mold by setting a bottom buffer mechanism. When the lower mold is impacted, the positioning plate will be impacted in advance, and the positioning plate will transmit the impact force to the inside of the connecting rod, and the connecting rod will transmit the impact force to the inside of the slide, and the slide will transmit the impact force to the inside of the bottom buffer spring, and the impact force will be buffered by the bottom buffer spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the structural diagram of the utility model;

[0019] Figure 2 For this utility model Figure 1 The three-dimensional cross-sectional structure diagram of the intermediate cold heading mold;

[0020] Figure 3 For this utility model Figure 2 A magnified structural diagram at center A;

[0021] Figure 4 For this utility model Figure 2 Enlarged structural diagram at point B in the middle.

[0022] In the figure: 1. Cold heading mold; 101. Lower mold; 102. Bottom positioning plate; 103. Buffer plate; 104. Upper mold; 105. Fixed plate; 2. Bottom buffer mechanism; 21. Connecting rod; 22. Slide plate; 23. Bottom buffer spring; 3. Top buffer mechanism; 31. Buffer rod; 32. Sliding plate; 33. Top buffer spring; 34. Pressure plate; 35. Main buffer spring; 4. Connector; 5. Connecting ring; 6. Guide block; 7. Guide groove; 8. Slider; 9. Slide groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figures 1 to 4 As shown, the utility model provides a screw positioning buffer cold heading mold, comprising:

[0025] Cold heading mold 1;

[0026] The bottom buffer mechanism 2 is arranged inside the cold heading mold 1;

[0027] The top buffer mechanism 3 is arranged inside the cold forging mold 1. The top buffer mechanism 3 includes a buffer rod 31. The buffer rod 31 is arranged at the four corners inside the cold forging mold 1. The top of the buffer rod 31 is fixedly connected with a sliding plate 32. The top of the sliding plate 32 is fixedly connected with a top buffer spring 33. A pressure plate 34 is arranged inside the cold forging mold 1. The top of the pressure plate 34 is fixedly connected with a main buffer spring 35.

[0028] refer to Figure 1 The cold heading mold 1 includes a lower mold 101, a bottom positioning plate 102 is provided on the top of the lower mold 101, and a buffer plate 103 is movably connected to the top of the bottom positioning plate 102, and an upper mold 104 is provided on the top of the buffer plate 103. The top of the upper mold 104 is movably connected to a fixed plate 105 by bolts and nuts. The buffer rod 31 is fixedly connected to both sides of the top of the buffer plate 103, and the top of the buffer rod 31 passes through the interior of the upper mold 104. The interior of the upper mold 104 is slidably connected to the surface of the sliding plate 32, the top of the pressure plate 34 passes through the interior of the upper mold 104 and is slidably connected to the interior of the upper mold 104, and the top of the main buffer spring 35 is fixedly connected to the bottom of the fixed plate 105.

[0029] As a technical optimization solution of the present invention, the screw can be cold-forging processed by setting a cold-forging mold 1. The user installs the top buffer mechanism 3 on the upper mold 104. The upper mold 104 fixes the screw through the top buffer mechanism 3. The upper mold 104 then drives the screw to move downward from the top of the bottom positioning plate 102 and inserts it into the interior of the lower mold 101. The screw is cold-forging processed through the lower mold 101.

[0030] refer to Figure 4 The bottom buffer mechanism 2 includes a connecting rod 21, which is fixedly connected to the four corners of the bottom of the bottom positioning plate 102. The bottom of the connecting rod 21 passes through the interior of the lower mold 101 and is fixedly connected to a slide plate 22. The bottom of the slide plate 22 is fixedly connected to a bottom buffer spring 23. The bottom of the bottom buffer spring 23 is fixedly connected to the bottom of the inner wall of the lower mold 101.

[0031] As a technical optimization solution of the present invention, by setting a bottom buffer mechanism 2, the lower mold 101 can be protected. When the lower mold 101 is impacted, the bottom positioning plate 102 will be impacted in advance. The bottom positioning plate 102 will transmit the impact force to the interior of the connecting rod 21, and the connecting rod 21 will transmit the impact force to the interior of the slide plate 22. The slide plate 22 will transmit the impact force to the interior of the bottom buffer spring 23, and the impact force will be buffered by the bottom buffer spring 23.

[0032] refer to Figure 2 The surface of the lower mold 101 is movably connected to the connector 4 , and the surface of the lower mold 101 is fixedly connected to the connecting ring 5 , and the surface of the connecting ring 5 penetrates into the interior of the connector 4 .

[0033] As a technical optimization solution of the present invention, by providing the connector 4 and the connecting ring 5, the lower mold 101 can be fixed and protected to prevent the surface of the lower mold 101 from being hit by other components.

[0034] refer to Figure 3 Guide blocks 6 are fixedly connected to both sides of the pressure plate 34, and guide grooves 7 are provided on both sides of the inner wall of the upper mold 104 corresponding to the positions of the guide blocks 6, and the guide grooves 7 are slidably connected to the guide blocks 6.

[0035] As a technical optimization solution of the present invention, by providing the guide block 6 and the guide groove 7, the pressure plate 34 can be guided to prevent the pressure plate 34 from shaking.

[0036] refer to Figure 4 Both sides of the slide plate 22 are fixedly connected with sliders 8, and both sides of the inner wall of the lower mold 101 are provided with slide grooves 9, which are slidably connected to the sliders 8.

[0037] As a technical optimization solution of the present invention, by providing a slider 8 and a slide groove 9, the slide plate 22 can be guided to prevent the slide plate 22 from moving back and forth during movement.

[0038] The working principle and use process of the utility model: when using, the user inserts the screw rod into the inside of the buffer plate 103, then drives the upper die 104 to move downward through the output end of the cold heading machine, the upper die 104 drives the buffer plate 103 and the screw rod to move downward through the top buffer mechanism 3, makes the screw rod pass through the bottom positioning plate 102 and inserts into the inside of the lower die 101, carries out cold heading processing to the screw rod through the lower die 101, before the upper die 104 contacts with the lower die 101, the buffer plate 103 and the bottom positioning plate 102 will contact in advance and produce impact, the buffer plate 103 transmits the impact force into the inside of the buffer rod 31, the buffer rod 31 transmits the impact force into the inside of the sliding disc 32, the sliding disc 32 transmits the impact force into the inside of the top buffer spring 33, the top buffer spring 33 buffers the impact force and transmits the buffered impact force into the inside of the upper die 104, slows down the impact received by the upper die 104, at the same time, avoids the direct contact between the lower die 101 and the upper die 104, at the same time, the impact force produced when the screw rod inserts into the lower die 101 will be transmitted into the inside of the pressure plate 34 through the screw rod, the pressure plate 34 transmits the impact force into the inside of the main buffer spring 35.

[0039] In conclusion: the screw rod positioning buffer cold heading die, through the setting top buffer mechanism 3, can buffer protection to the upper die 104, then through the bottom buffer mechanism 2, can buffer protection to the lower die 101, the single spring of the user when using will not appear the phenomenon of deformation in long-term use, the user uses conveniently, the die will not appear the phenomenon of deformation.

[0040] It should be noted that, in this text, relational terms such as first and second and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying that there is any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article, or equipment.

[0041] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A screw positioning buffer cold heading mold, characterized in that: include: Cold heading mold (1); A bottom buffer mechanism (2), wherein the bottom buffer mechanism (2) is arranged inside the cold heading mold (1); A top buffer mechanism (3) is provided inside the cold forging mold (1), and the top buffer mechanism (3) includes a buffer rod (31), and the buffer rod (31) is provided at four corners inside the cold forging mold (1). The top of the buffer rod (31) is fixedly connected to a sliding disk (32), and the top of the sliding disk (32) is fixedly connected to a top buffer spring (33). A pressure plate (34) is provided inside the cold forging mold (1), and the top of the pressure plate (34) is fixedly connected to a main buffer spring (35).

2. The screw positioning buffer cold heading mold according to claim 1, characterized in that: The cold heading mold (1) includes a lower mold (101), a bottom positioning plate (102) is provided on the top of the lower mold (101), a buffer plate (103) is movably connected to the top of the positioning plate (102), an upper mold (104) is provided on the top of the buffer plate (103), and a fixed plate (105) is movably connected to the top of the upper mold (104) through bolts and nuts. The buffer rod (31) is fixedly connected to both sides of the top of the buffer plate (103), the top of the buffer rod (31) passes through the interior of the upper mold (104), the interior of the upper mold (104) is slidably connected to the surface of the sliding plate (32), the top of the pressure plate (34) passes through the interior of the upper mold (104) and is slidably connected to the interior of the upper mold (104), and the top of the main buffer spring (35) is fixedly connected to the bottom of the fixed plate (105).

3. The screw positioning buffer cold heading mold according to claim 2, characterized in that: The bottom buffer mechanism (2) includes a connecting rod (21), the connecting rod (21) is fixedly connected to the four corners of the bottom of the positioning plate (102), the bottom of the connecting rod (21) passes through the interior of the lower mold (101) and is fixedly connected to a slide plate (22), the bottom of the slide plate (22) is fixedly connected to a bottom buffer spring (23), and the bottom of the bottom buffer spring (23) is fixedly connected to the bottom of the inner wall of the lower mold (101).

4. The screw positioning buffer cold heading mold according to claim 3, characterized in that: The surface of the lower mold (101) is movably connected to a connector (4), and the surface of the lower mold (101) is fixedly connected to a connecting ring (5), and the surface of the connecting ring (5) penetrates into the interior of the connector (4).

5. The screw positioning buffer cold heading mold according to claim 4, characterized in that: Guide blocks (6) are fixedly connected to both sides of the pressure plate (34), and guide grooves (7) are provided on both sides of the inner wall of the upper mold (104) at positions corresponding to the guide blocks (6), and the guide grooves (7) are slidably connected to the guide blocks (6).

6. The screw positioning buffer cold heading mold according to claim 5, characterized in that: Both sides of the slide plate (22) are fixedly connected with sliders (8), and both sides of the inner wall of the lower mold (101) are provided with sliding grooves (9), and the sliding grooves (9) are slidably connected with the sliders (8).

Images