Heat treatment device for producing low-carbon steel self-tapping screws

Abstract

The utility model discloses a heat treatment device for producing a low-carbon steel self-tapping screw, and belongs to the technical field of heat treatment equipment. Comprising a plurality of material boxes, a heating box and a cooling mechanism, bottom plates of the material boxes are composed of a plurality of adjacent triangular plates, the material boxes are movably arranged in the heating boxes in an attached mode, the bottom plates at the two ends of the heating boxes protrude, end plates are arranged at one ends of the heating boxes, air cylinders pushing the material boxes to move are arranged on the end plates, top plates at the ends, away from the air cylinders, of the heating boxes protrude, and sprayers connected with a cooling mechanism are arranged below the top plates. By arranging the triangular plates, after screws are placed in the material boxes, the screws can be automatically perpendicular by shaking the material boxes, so that heat treatment can be better carried out, and by arranging the air cylinders, the multiple material boxes can sequentially enter the heating box, so that heat treatment is carried out on the screws.

Description

Technical Field

[0001] The utility model provides a heat treatment device for producing low-carbon steel self-tapping screws, belonging to the technical field of heat treatment equipment. Background Art

[0002] Self-tapping screws, also known as quick-thread screws, are quick-install fasteners made of steel with a galvanized and passivated surface. Self-tapping screws are mostly used to connect thin metal plates. When connecting, first make a threaded bottom hole for the connected part, and then screw the self-tapping screw into the threaded bottom hole of the connected part.

[0003] Currently, in order to improve the strength of screws after production, they need to be heat treated. However, during heat treatment, because the screws are small, workers do not place each screw step by step to arrange them neatly, so the screws are piled up together, resulting in uneven heating. Utility Model Content

[0004] The utility model provides a heat treatment device for producing low-carbon steel self-tapping screws, which can solve the problem of uneven heating of existing screws during heat treatment.

[0005] In order to solve the above problems, the utility model proposes a technical solution: a heat treatment device for the production of low-carbon steel self-tapping screws, comprising a plurality of material boxes, a heating box, and a cooling mechanism; the bottom plate of the material box is composed of a plurality of adjacent triangular plates, and the plurality of material boxes are arranged in a close-fitting manner in the heating box, the bottom plates at both ends of the heating box protrude, and one end is provided with an end plate, and the end plate is provided with a cylinder for pushing the material box to move, and the top plate at one end of the heating box away from the cylinder protrudes, and a nozzle connected to the cooling mechanism is provided below the top plate;

[0006] As an improvement, handles are provided on both sides of the upper two side panels of the material box, and legs are provided at the four corners below the material box;

[0007] As an improvement, the distance between any two adjacent triangular plates is greater than the diameter of the threaded portion of the screw and smaller than the width of the head portion of the screw;

[0008] As an improvement, the bottom plate of the heating box is located on the inner side of the same side support leg and is provided with a guide rod that fits the support leg. The upper end of the middle part of the heating box is provided with a heating plate 1 with an area the same as the inner area of ​​the material box. A heating plate 2 is provided below the heating plate 1 relative to the lower side of the triangular plate.

[0009] As an improvement, the cooling mechanism includes a coolant tank and a pump body arranged on one side of the heating box, the inlet of the pump body is connected to the coolant tank through a liquid pipeline, and the outlet of the pump body is connected to a plurality of nozzles through a liquid pipeline;

[0010] As an improvement, the cylinder axis movement distance of the cylinder is greater than the width of a material box;

[0011] Beneficial effects of the utility model:

[0012] By setting a triangular plate, after the screws are placed in the material box, shaking the material box can make the screws automatically vertical, so that heat treatment can be better performed. By setting a cylinder, several material boxes can enter the heating box in turn, so that the screws can be heat treated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a structural schematic diagram of a heat treatment device for producing low-carbon steel self-tapping screws.

[0014] Figure 2 The utility model is a schematic diagram of a material box of a heat treatment device for producing low-carbon steel self-tapping screws.

[0015] Figure 3 The utility model is a schematic diagram of the interior of a heating box of a heat treatment device for producing low-carbon steel self-tapping screws.

[0016] Figure 4 The utility model is a schematic diagram of a cooling mechanism of a heat treatment device for producing low-carbon steel self-tapping screws.

[0017] 1. Material box; 101. Triangle plate; 102. Handle; 103. Leg; 2. Heating box; 201. End plate; 202. Guide rod; 203. Heating plate 1; 204. Heating plate 2; 3. Cooling mechanism; 301. Nozzle; 302. Coolant tank; 303. Pump body; 304. Liquid pipeline; 4. Cylinder. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] according to Figure 1 —4: The utility model provides a heat treatment device for the production of low-carbon steel self-tapping screws: comprising a plurality of material boxes 1, a heating box 2, and a cooling mechanism 3; the bottom plate of the material box 1 is composed of a plurality of adjacent triangular plates 101, and the plurality of material boxes 1 are arranged in a movable manner in the heating box 2 in close contact, the bottom plates at both ends of the heating box 2 protrude, and one end is provided with an end plate 201, and the end plate 201 is provided with a cylinder 4 for pushing the material box 1 to move, and the top plate of the heating box 2 at one end away from the cylinder 4 protrudes, and a nozzle 301 connected to the cooling mechanism 3 is provided under the top plate; by providing the triangular plate 101, after the screws are placed in the material box 1, shaking the material box 1 can make the screws automatically vertical, so that heat treatment can be better performed, and by providing the cylinder 4, the plurality of material boxes 1 can enter the heating box 2 in sequence, so as to perform heat treatment on the screws;

[0020] Among them, handles 102 are respectively provided on both sides of the upper two side panels of the material box 1, and legs 103 are provided at the four corners of the lower side of the material box 1. The distance between any two adjacent triangular plates 101 is greater than the diameter of the threaded part of the screw and smaller than the width of the head part of the screw; in this way, when the screw is put into the material box 1, shaking the material box 1 can make the screw vertical between the adjacent triangular plates 101, and the handles 102 enable the worker to remove the material box 1 without touching the material box 1, thereby avoiding the worker from being scalded;

[0021] Among them, the bottom plate of the heating box 2 is located on the inner side of the support leg 103 on the same side and is provided with a guide rod 202 that fits the support leg 103. A heating plate 203 with an area the same as the inner area of ​​the material box 1 is provided at the middle upper end of the heating box 2. A heating plate 204 is provided below the heating plate 203 relative to the bottom of the triangular plate 101; in this way, the material box 1 can be heated when it is in the middle of the heating box 2, and each vertical screw can be heated. The two sides are provided with the parts of the heating plate 1 203 and the heating plate 2 204 so that the hot air will not hurt the workers. The guide rod 202 and the cylinder 4 cooperate to enable the material box 1 to move along a predetermined trajectory, so that several material boxes 1 will not accumulate in the heating box 2 when moving.

[0022] The cooling mechanism 3 includes a cooling liquid tank 302 and a pump body 303 arranged on one side of the heating box 2. The inlet of the pump body 303 is connected to the cooling liquid tank 302 through a liquid pipeline 304, and the outlet of the pump body 303 is connected to a plurality of nozzles 301 through a liquid pipeline 304. In this way, when the material box 1 comes out of the heating box 2, it can be cooled, thereby obtaining a quenching effect.

[0023] Among them, the moving distance of the cylinder axis of the cylinder 4 is greater than the width of a material box 1; in this way, when the cylinder axis of the cylinder 4 is contracted, it is convenient to place the material box 1. After the material box 1 is placed, the cylinder axis of the extended cylinder 4 can push a material box 1 in front of the heating plate 1 203 and the heating plate 2 204 to the part of the heating box 2 where the heating plate 1 203 and the heating plate 2 204 are set, thereby heat treating the screws.

[0024] Principle of the utility model: when in use, first place a number of screws into the material box 1, then shake the material box 1, under the action of gravity, the threaded part of the screw will pass through the triangular plate 101, so that the screw is vertical, then place the material box 1 on the end of the heating box 2 close to the cylinder 4, make the inner walls of the legs 103 on both sides fit the guide rod 202, then manually push the material box 1, repeat the above steps until the first material box 1 is in the middle of the heating box 2, start the heating plate 1 203 and the heating plate 2 204 of the heating box 1, the heating plate 1 203 will heat the upper part of the screw, and the heating plate 2 204 will heat the lower part of the screw, when the heating is completed, continue to place the material box 1 to the end of the heating box 2 close to the cylinder 4, and start after placement Move the cylinder 4, the cylinder shaft of the cylinder 4 will push the material box 1 forward, and push the material box 1 in the middle of the heating box 2 backward, then shrink the cylinder shaft of the cylinder 4 to the shortest, repeat the above steps, so that the screws in several material boxes 1 can be heat treated in turn, when the material box 1 is under the nozzle 301, start the pump body 303, the pump body 303 will extract the coolant in the coolant tank 302, and then spray it from the nozzle 301, so as to cool the screws in the material box 1, after cooling, use two rods to insert them into the two handles 102 at the same end respectively, remove the material box 1, after removal, continue to place the material box 1 to the end of the heating box 2 close to the cylinder 4, so that the screws in the material box 1 can be heat treated in turn.

[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A heat treatment device for the production of low-carbon steel self-drilling screws, comprising a plurality of material boxes (1), a heating box (2), and a cooling mechanism (3); characterized in that: The bottom plate of the material box (1) is composed of a plurality of adjacent triangular plates (101), and the plurality of material boxes (1) are arranged in a movable manner in a close relationship within the heating box (2). The bottom plates at both ends of the heating box (2) are protruding, and one end is provided with an end plate (201), and the end plate (201) is provided with a cylinder (4) for pushing the material box (1) to move. The top plate at one end of the heating box (2) away from the cylinder (4) is protruding, and a nozzle (301) connected to a cooling mechanism (3) is provided below the top plate.

2. A heat treatment device for producing low carbon steel self-tapping screws according to claim 1, characterized in that: Handles (102) are respectively provided on both sides of the upper sides of the two side panels of the material box (1), and legs (103) are provided at the four lower corners of the material box (1).

3. A heat treatment device for producing low carbon steel self-tapping screws according to claim 1, characterized in that: The distance between any two adjacent triangular plates (101) is greater than the diameter of the threaded portion of the screw and smaller than the width of the head portion of the screw.

4. A heat treatment device for producing low carbon steel self-tapping screws according to claim 2, characterized in that: The bottom plate of the heating box (2) is located on the inner side of the support leg (103) on the same side and is provided with a guide rod (202) that fits the support leg (103); the middle upper end of the heating box (2) is provided with a heating plate 1 (203) with an area equal to the inner area of ​​the material box (1); and a heating plate 2 (204) is provided below the heating plate 1 (203) relative to the bottom of the triangular plate (101).

5. A heat treatment device for producing low carbon steel self-tapping screws according to claim 1, characterized in that: The cooling mechanism (3) comprises a cooling liquid tank (302) and a pump body (303) arranged on one side of the heating box (2); the inlet of the pump body (303) is connected to the cooling liquid tank (302) via a liquid pipeline (304); and the outlet of the pump body (303) is connected to a plurality of nozzles (301) via a liquid pipeline (304).

6. A heat treatment device for producing low carbon steel self-tapping screws according to claim 1, characterized in that: The cylinder shaft movement distance of the cylinder (4) is greater than the width of a material box (1).

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