Die for screw production

Abstract

The utility model discloses a die for screw production, which comprises a main body, a plurality of die grooves distributed in a rectangular array are arranged on the upper surface of the main body, buffer pieces are arranged on the outer sides of openings of the die grooves, supports are fixed at two ends of the upper surface of the main body, and hydraulic cylinders are fixed in the middles of the upper surfaces of the supports. The output end of the hydraulic cylinder is connected with a movable plate through a push rod, the two ends of the upper surface of the movable plate are connected with the lower surface of the support through telescopic rods, a plurality of pressing dies matched with the die grooves are fixed to the lower surface of the movable plate, and buffering pieces are arranged on the outer sides of openings of the die grooves, so that the die grooves can bear buffering force and cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of fastener processing, in particular to a mold for producing screws. Background Art

[0002] When processing screws, the material is first cut, then the cut blank is fired and injected into the cold heading die for cold heading, then the middle of the screw is turned to form a groove, and finally the tail of the screw is threaded to form a thread. When the existing cold heading die is used, the processing accuracy of the screw needs to be improved, and the mold has poor flexibility during use, resulting in a reduced service life of the mold. Therefore, it is necessary to invent a mold for screw production to solve the above problems. Utility Model Content

[0003] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a mold for screw production.

[0004] In order to achieve the above technical effects, the utility model adopts the following scheme:

[0005] A mold for screw production includes a main body, the upper surface of the main body is provided with a plurality of mold grooves distributed in a rectangular array, a buffer is provided on the outer side of the opening of the mold groove, brackets are fixed at both ends of the upper surface of the main body, a hydraulic cylinder is fixed in the middle of the upper surface of the bracket, the output end of the hydraulic cylinder is connected to a movable plate through a push rod, both ends of the upper surface of the movable plate are connected to the lower surface of the bracket through a telescopic rod, and a plurality of pressing dies adapted to the mold grooves are fixed to the lower surface of the movable plate.

[0006] According to a preferred technical solution, a through groove is provided in the middle of the groove bottom of the mold groove, a push rod is arranged in the through groove, a cylinder is connected to the bottom of the push rod, and the cylinder is installed on the lower surface of the main body.

[0007] According to a preferred technical solution, the buffer member includes a buffer plate, which is arranged in an annular structure and allows the die to pass through, and the lower surface of the buffer plate is connected to the bottom end of the main body through a plurality of buffer springs distributed in an annular array.

[0008] According to a preferred technical solution, both inner and outer sides of the lower surface of the buffer plate are connected to the main body via sealing tapes for enclosing a plurality of buffer springs therein.

[0009] Compared with the prior art, the beneficial effects are:

[0010] The utility model has a simple structure and is easy to use. A push rod is arranged at the bottom of the mold groove, and the push rod is driven to rise and fall by a cylinder, so that the screws in the mold groove can be pushed out, thereby improving the working efficiency of the device. Multiple mold grooves are arranged on the main body, and multiple pressing dies are arranged on the movable plate, so that the device can produce multiple screws at the same time, thereby improving the working efficiency of the device. A buffer part is arranged on the outer side of the opening of the mold groove, so that the mold groove can be subjected to the buffering force and will not be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic cross-sectional view of the overall structure of the utility model.

[0012] Figure 2 It is a top view schematic diagram of the main structure of the utility model.

[0013] Figure 3 It is a schematic cross-sectional view of the structure of the buffer member of the utility model.

[0014] Figure numerals: 1. main body; 2. mold groove; 3. buffer part; 4. bracket; 5. hydraulic cylinder; 6. movable plate; 7. telescopic rod; 8. die; 9. through groove; 10. push rod; 11. cylinder; 12. buffer plate; 13. buffer spring; 14. sealing belt. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] A mold for producing screws includes a main body 1, the upper surface of the main body 1 is provided with a plurality of mold grooves 2 distributed in a rectangular array, the mold grooves 2 match the shape of the screws, a buffer 3 is provided on the outer side of the opening of the mold groove 2, brackets 4 are fixed at both ends of the upper surface of the main body 1, a hydraulic cylinder 5 is fixed in the middle of the upper surface of the bracket 4, the output end of the hydraulic cylinder 5 is connected to a movable plate 6 through a push rod, both ends of the upper surface of the movable plate 6 are connected to the lower surface of the bracket 4 through a telescopic rod 7, and a plurality of pressing dies 8 adapted to the mold groove 2 are fixed to the lower surface of the movable plate 6.

[0017] According to a preferred technical solution, a through groove 9 is provided in the middle of the bottom of the mold groove 2 , a push rod 10 is arranged in the through groove 9 , a cylinder 11 is connected to the bottom of the push rod 10 , and the cylinder 11 is installed on the lower surface of the main body 1 .

[0018] According to the preferred technical solution, the buffer member 3 includes a buffer plate 12, which is arranged in an annular structure and allows the die 8 to pass through. The lower surface of the buffer plate 12 is connected to the bottom end of the main body 1 through a plurality of buffer springs 13 distributed in an annular array. When the die 8 descends, the die 8 passes through the annular buffer plate 12, and then the movable plate 6 is pressed on the buffer plate 12 and compresses the buffer spring 13, thereby absorbing energy and buffering through the buffer spring 13. The buffer spring 13 adopts a strong spring in the prior art. Usually, the strong spring itself has a certain strength, so the strong spring can be arranged vertically without collapsing to one side. Therefore, the plurality of buffer springs 13 distributed in an annular array can support the buffer plate 12 without causing the buffer plate 12 to tilt in a certain direction.

[0019] According to a preferred technical solution, both inner and outer sides of the lower surface of the buffer plate 12 are connected to the main body 1 through sealing tapes 14 for enclosing the plurality of buffer springs 13 therein.

[0020] The blank is placed in the die groove 2, and the hydraulic cylinder 5 drives the movable plate 6 to descend, thereby driving the multiple pressing dies 8 to descend, and the pressing dies 8 squeeze the blank in the die groove 2 to form a screw.

[0021] The utility model is provided with a push rod 10 at the bottom of the die groove 2, and the push rod 10 is driven to rise and fall by the cylinder 12, so that the screws in the die groove 2 can be pushed out, thereby improving the working efficiency of the device; a plurality of die grooves 2 are provided on the main body 1, and a plurality of pressing dies 8 are provided on the movable plate 6, so that the device can simultaneously produce a plurality of screws, thereby improving the working efficiency of the device; a buffer member 3 is provided on the outer side of the opening of the die groove 2, so that the die groove 2 can be subjected to the buffering force and will not be damaged.

[0022] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A mold for screw production, characterized in that: The invention comprises a main body (1), wherein the upper surface of the main body (1) is provided with a plurality of mold grooves (2) distributed in a rectangular array, a buffer member (3) is arranged on the outer side of the opening of the mold groove (2), brackets (4) are fixed at both ends of the upper surface of the main body (1), a hydraulic cylinder (5) is fixed in the middle of the upper surface of the bracket (4), the output end of the hydraulic cylinder (5) is connected to a movable plate (6) via a push rod, both ends of the upper surface of the movable plate (6) are connected to the lower surface of the bracket (4) via a telescopic rod (7), and a plurality of pressing dies (8) adapted to the mold grooves (2) are fixed to the lower surface of the movable plate (6).

2. A screw production mold according to claim 1, characterized in that: A through groove (9) is provided in the middle of the bottom of the mold groove (2), a push rod (10) is arranged in the through groove (9), and a cylinder (11) is connected to the bottom of the push rod (10), and the cylinder (11) is installed on the lower surface of the main body (1).

3. A screw production mold as claimed in claim 2, characterized in that: The buffer member (3) comprises a buffer plate (12), which is arranged in an annular structure and allows the die (8) to pass through, and the lower surface of the buffer plate (12) is connected to the bottom end of the main body (1) via a plurality of buffer springs (13) distributed in an annular array.

4. A screw production mold as claimed in claim 3, characterized in that: Both inner and outer sides of the lower surface of the buffer plate (12) are connected to the main body (1) via sealing tapes (14) for enclosing a plurality of buffer springs (13) therein.

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