Multi-station automatic nut cold header

Abstract

The utility model discloses a multi-station automatic nut cold header which comprises a cold header body and a loading and unloading mechanism installed on the top of the cold header body, a plurality of feeding grooves are formed in one side of the top of the cold header body at equal intervals in a penetrating mode, a material guide groove is formed in the top of each feeding groove, and inclined grooves are formed in the bottoms of the inner walls of the material guide grooves. A plurality of through grooves are formed in the bottom of the inner wall of the inclined groove at equal intervals, a plurality of supporting frames are fixedly arranged on one side of the outer wall of the cold header body at equal intervals, and a limiting shaft is arranged on the inner wall of each supporting frame in a penetrating mode. According to the feeding mechanism, raw materials are conveyed to the inner wall of the material guide groove through the conveying belt, the inclined groove sequentially guides the raw materials into the through groove, the limiting shaft sequentially pushes the raw materials at the lower end in the connecting groove to be subjected to extrusion forming and discharging, then machining and discharging of the next batch of raw materials are continued, and the purpose of feeding and discharging can be achieved without a plurality of feeding mechanisms; and the production and later maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of nut processing, in particular to a multi-station automatic nut cold heading machine. Background Art

[0002] Cold heading machine is a special equipment mainly used for batch production of nuts, bolts and other fasteners. Its principle is based on the theory of metal plastic deformation. It applies a certain pressure to the metal blank at room temperature to make it plastically deform in the mold cavity and form it into the specified shape and size. With the development of modern technology, the functions of the upper end of the cold heading machine are constantly being improved, making it more efficient to use.

[0003] In view of this, Chinese patent number CN214814542U proposes a multi-station automatic nut cold heading machine. The utility model is easy to replace molds, saves replacement time, and improves work efficiency. Stamping, drilling, cutting and forming are integrated, the structure is simple and reasonable, and the occupied space is reduced. At the same time, it is convenient for later maintenance and can timely separate waste and blanks and collect waste, which improves practicality. However, when the above technical scheme and the existing cold heading machine are in use, automatic loading is usually adopted for the cold heading machine loading of a single station. However, when multiple stations are carried out at the same time, multiple loading mechanisms need to be set up for simultaneous loading, which increases the production cost of the cold heading machine and the cost of later maintenance. In addition, when multiple groups of loading mechanisms are loading at the same time, the staff needs to pay attention to whether each loading area is abnormal at the same time, which increases the workload of the staff. In this regard, the present design scheme proposes a multi-station automatic nut cold heading machine. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a multi-station automatic nut cold heading machine to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model proposes a multi-station automatic nut cold heading machine, comprising a cold heading machine body and a loading and unloading mechanism installed on the top of the cold heading machine body;

[0006] The loading and unloading mechanism includes a plurality of forming bins equidistantly arranged on one side of the inner wall of the cold heading machine body, a plurality of feed troughs equidistantly arranged on one side of the top of the cold heading machine body, and the inner wall of each feed trough is respectively connected with the inner wall of each forming bin, a material guide trough is installed on the top of each of the feed troughs, an inclined groove is arranged at the bottom of the inner wall of the guide trough, a plurality of through grooves equidistantly arranged at the bottom of the inner wall of the inclined groove, and the inner wall of each through groove is respectively connected with the upper end of the inner wall of each feed trough, a plurality of connecting grooves are equidistantly arranged on the inner wall of one end of the cold heading machine body, a plurality of support frames are fixedly arranged at equidistantly arranged on one side of the outer wall of the cold heading machine body, a limiting shaft is interspersed on the inner wall of each of the support frames, and the outer wall of each limiting shaft is respectively interspersed and connected with the inner wall of each connecting groove, and a push plate is fixedly arranged at one end of each of the limiting shafts.

[0007] In one example, a mounting bracket is fixedly provided at the edge of one side of the material guide trough, and a conveyor belt is installed at the upper end of the inner wall of the mounting bracket.

[0008] In one example, a first hydraulic cylinder is fixedly provided at the edge of one side of the top of the cold heading machine body, a first push rod is inserted through the output end of the first hydraulic cylinder, and one end of the first push rod is fixedly connected to one side of the push plate.

[0009] In one example, a discharge chute is provided on one side of the inner wall of the cold heading machine body below the forming bin, and limiting sliding grooves are provided on the other two sides of the inner wall of the cold heading machine body.

[0010] In one example, an extrusion module is slidably provided between the inner walls of the two limiting slide grooves, a punching head is fixedly provided at an equal distance on one side of the extrusion module, a second hydraulic cylinder is fixedly provided on the other side of the top of the cold heading machine body, a second push rod is inserted at the output end of the second hydraulic cylinder, and one end of the second push rod is fixedly connected to the other side of the extrusion module.

[0011] In one example, a switch panel is fixedly provided on one side of the cold heading machine body, and the conveyor belt is electrically connected to an external power supply through the switch panel.

[0012] The multi-station automatic nut cold heading machine proposed by the utility model can bring the following beneficial effects:

[0013] The multi-station automatic nut cold heading machine is provided with a loading and unloading mechanism. During the processing of the cold heading machine, the raw materials are conveyed to the inner wall of the guide groove by a conveyor belt and are successively introduced into the through groove through the inclined groove. During the processing, the limit shaft pushes the raw materials at the lower end in the connecting groove in sequence for extrusion molding and discharge, and then continues the processing and unloading of the next batch of raw materials. The purpose of loading and unloading can be completed without multiple feeding mechanisms, thereby reducing the cost of production and subsequent maintenance. The staff also does not need to pay attention to whether multiple feeding mechanisms are abnormal at the same time, thereby reducing the workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure inside the main body of the cold heading machine of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the conveyor belt of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the cold heading machine stamping process of the utility model.

[0019] In the figure: 1. cold heading machine body; 2. loading and unloading mechanism; 201. forming bin; 202. feed trough; 203. guide trough; 204. inclined trough; 205. through trough; 206. connecting trough; 207. support frame; 208. limit shaft; 209. push plate; 210. mounting bracket; 211. conveyor belt; 3. first hydraulic cylinder; 4. first push rod; 5. discharge trough; 6. limit slide; 7. extrusion module; 8. stamping tool head; 9. second hydraulic cylinder; 10. second push rod. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0021] The examples are as follows:

[0022] The utility model provides Figure 1-4 The multi-station automatic nut cold heading machine shown in the figure comprises a cold heading machine body 1 and a loading and unloading mechanism 2 installed on the top of the cold heading machine body 1;

[0023] The loading and unloading mechanism 2 includes a plurality of forming bins 201 equidistantly arranged on one side of the inner wall of the cold heading machine body 1, a plurality of feed troughs 202 equidistantly interspersed on one side of the top of the cold heading machine body 1, and the inner wall of each feed trough 202 is respectively connected to the inner wall of each forming bin 201, a guide trough 203 is installed on the top of each feed trough 202, an inclined groove 204 is arranged at the bottom of the inner wall of the guide trough 203, a plurality of through grooves 205 are equidistantly arranged at the bottom of the inner wall of the inclined groove 204, and the inner wall of each through groove 205 is respectively connected to the upper end of the inner wall of each feed trough 202, and the inner wall of one end of the cold heading machine body 1 is equidistantly arranged. A plurality of connecting grooves 206 are provided, and a plurality of supporting frames 207 are fixedly provided at equal distances on one side of the outer wall of the cold heading machine body 1. A limiting shaft 208 is inserted into the inner wall of each supporting frame 207, and the outer wall of each limiting shaft 208 is respectively inserted and connected with the inner wall of each connecting groove 206. A push plate 209 is fixedly provided at one end of each limiting shaft 208, and an inclined groove 204 is arranged inside the material guide groove 203 so that the raw materials can fall into the through groove 205 in sequence when rolling therein. After the through groove 205 is filled, the raw materials in the inclined groove 204 will enter the through groove 205 in an orderly manner during the later processing and discharging process.

[0024] A mounting bracket 210 is fixedly provided at the edge of one side of the guide trough 203, and a conveyor belt 211 is installed at the upper end of the inner wall of the mounting bracket 210. The top plane of the conveyor belt 211 is flush with the open end of one side of the guide trough 203, so as to facilitate the conveyance of raw materials therein;

[0025] Furthermore, a first hydraulic cylinder 3 is fixedly provided at the edge of one side of the top of the cold heading machine body 1, a first push rod 4 is inserted through the output end of the first hydraulic cylinder 3, and one end of the first push rod 4 is fixedly connected to one side of the push plate 209, the first hydraulic cylinder 3 retracts the first push rod 4 and then inserts the limit shaft 208 in the connecting groove 206 through the push plate 209, and the limit shaft 208 is supported by the support frame 207 to maintain its stability when moving;

[0026] Furthermore, a discharge chute 5 is provided on one side of the inner wall of the cold heading machine body 1 below the forming bin 201 , and limiting slide grooves 6 are provided on the other two sides of the inner wall of the cold heading machine body 1 .

[0027] An extrusion module 7 is slidably provided between the inner walls of the two limiting slide grooves 6, and a punching cutter head 8 is fixedly provided at an equidistant distance on one side of the extrusion module 7. A second hydraulic cylinder 9 is fixedly provided on the other side of the top of the cold heading machine body 1, and a second push rod 10 is inserted through the output end of the second hydraulic cylinder 9, and one end of the second push rod 10 is fixedly connected to the other side of the extrusion module 7. During processing, the through groove 205 brings the raw material into the feed trough 202, and then enters the forming bin 201 in sequence from the feed trough 202. The second hydraulic cylinder 9 is started to retract the second push rod 10, so that the extrusion module 7 moves with the punching cutter head 8 to punch the raw material in the forming bin 201 to form it. The front end of the punching cutter head 8 is a punching end, and the rear end is a cylindrical end. During stamping, the punching end opens a hole in the middle of the raw material, and the rear end cooperates with the limiting shaft 208 to extrude the raw material into shape.

[0028] Working principle: When using the multi-station automatic nut cold heading machine in this design, the raw material is processed into a flat cylindrical block by the nut raw material processing equipment and then rolled onto the conveyor belt 211 at the upper end of the mounting bracket 210 for transmission. The conveyor belt 211 transmits it to the upper end of the guide groove 203 and rolls it into the inclined groove 204 inside the guide groove 203 for rolling. During the rolling process, it will fall into the through groove 205 in turn. After the through groove 205 is filled, the material will continue to be guided to accumulate in the inclined groove 204, and cooperate with the extrusion module 7 and the punch head 8 in the forming bin 20 1, after the raw material is stamped and formed, the first hydraulic cylinder 3 is started to extend and retract the first push rod 4, and then the push plate 209 pushes multiple limit shafts 208 to be inserted in the connecting groove 206 to limit the nut raw material being stamped and formed. After forming, it is pushed out of the forming bin 201 and falls into the discharge chute 5 for discharge. The entire loading and unloading process is automated, and there is no need to install multiple feeding mechanisms. The mechanism can uniformly complete the purpose of feeding and unloading the formed nuts during multi-station processing, thereby reducing production and later maintenance costs. At the same time, it is convenient for staff to operate and reduces the workload of staff.

[0029] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0030] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A multi-station automatic nut cold heading machine, comprising a cold heading machine body (1) and a loading and unloading mechanism (2) installed on the top of the cold heading machine body (1); Features: The loading and unloading mechanism (2) comprises a plurality of forming bins (201) equidistantly arranged on one side of the inner wall of the cold heading machine body (1); a plurality of feed troughs (202) are equidistantly arranged on one side of the top of the cold heading machine body (1); the inner wall of each feed trough (202) is respectively connected to the inner wall of each forming bin (201); a guide trough (203) is installed on the top of each feed trough (202); an inclined groove (204) is arranged at the bottom of the inner wall of the guide trough (203); and a plurality of through grooves (205) are equidistantly arranged at the bottom of the inner wall of the inclined groove (204). , and the inner wall of each through groove (205) is respectively connected to the upper end of the inner wall of each feed groove (202), a plurality of connecting grooves (206) are equidistantly provided on the inner wall of one end of the cold heading machine body (1), a plurality of support frames (207) are equidistantly fixed on one side of the outer wall of the cold heading machine body (1), a limiting shaft (208) is inserted into the inner wall of each supporting frame (207), and the outer wall of each limiting shaft (208) is respectively inserted into the inner wall of each connecting groove (206), and a push plate (209) is fixed at one end of each limiting shaft (208).

2. A multi-station automatic nut cold heading machine according to claim 1, characterized in that: A mounting bracket (210) is fixedly provided at the edge of one side of the material guide trough (203), and a conveyor belt (211) is installed at the upper end of the inner wall of the mounting bracket (210).

3. The multi-station automatic nut cold heading machine according to claim 1, characterized in that: A first hydraulic cylinder (3) is fixedly provided at the edge of one side of the top of the cold heading machine body (1), a first push rod (4) is inserted through the output end of the first hydraulic cylinder (3), and one end of the first push rod (4) is fixedly connected to one side of the push plate (209).

4. The multi-station automatic nut cold heading machine according to claim 1, characterized in that: A discharge chute (5) is provided on one side of the inner wall of the cold heading machine body (1) below the forming bin (201), and limiting sliding grooves (6) are provided on the other two sides of the inner wall of the cold heading machine body (1).

5. The multi-station automatic nut cold heading machine according to claim 4, characterized in that: An extrusion module (7) is slidably provided between the inner walls of the two limiting slide grooves (6), a punching cutter head (8) is fixedly provided at an equal distance on one side of the extrusion module (7), a second hydraulic cylinder (9) is fixedly provided on the other side of the top of the cold heading machine body (1), a second push rod (10) is inserted through the output end of the second hydraulic cylinder (9), and one end of the second push rod (10) is fixedly connected to the other side of the extrusion module (7).

6. The multi-station automatic nut cold heading machine according to claim 2, characterized in that: A switch panel is fixedly provided on one side of the cold heading machine body (1), and the conveyor belt (211) is electrically connected to an external power source via the switch panel.

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