Thread twisting mechanism with small center distance

Abstract

The utility model discloses a thread twisting mechanism with a small center distance, which comprises a first mounting seat, a second mounting seat fixedly connected to the upper end of the first mounting seat, a needle bearing fixedly connected in the second mounting seat, a cooling block fixedly connected to the lower end of the first mounting seat, and a chain wheel fixedly connected in the first mounting seat. The chain wheel is in transmission connection with the needle bearing through a gear; the lower end of the third mounting seat is fixedly connected with the upper end of the second mounting seat, a thread sleeve is fixedly connected in the third mounting seat, a thread inner core is in threaded connection in the thread sleeve, the thread inner core is connected with the cooling block in a sleeved mode, and the thread sleeve is connected with the needle bearing in a sleeved mode. Through the arrangement of the four sets of needle bearings and the gears, the structure is compact, forming of four side-by-side internal threads with the small center distance is facilitated, the manufacturing period of a product can be shortened, and the manufacturing cost of the product can be reduced; a cooling mechanism is composed of the thread inner core and the cooling block, the cooling block is connected with cooling water, heat in the mold core can be reduced, and stable operation of the mechanism is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of thread twisting, in particular to a thread twisting mechanism with a small center distance. Background Art

[0002] The existing thread-cutting mechanism has a center distance that is too small for the parallel internal threads, and it is impossible to arrange bearings and gears. Only two thread-cutting mechanisms can be made on the outside, and the two internal threads in the middle rely on subsequent machining, resulting in a long product cycle and high cost. The Chinese patent discloses a "threading mechanism", and its application number is "CN202022919747.0", which includes a motor, a chain, a first gear, a screw thread insert pin, a second gear and a screw thread sleeve. The bottom of the motor is connected to the second shaft fixing seat, the left end of the second shaft fixing seat is connected to the chain, the left end of the chain is connected to the first shaft fixing seat, the top of the first shaft fixing seat is provided with a first gear, the two ends of the first gear are meshed and connected with the second gear, the top of the second gear is provided with a screw thread insert pin, the bottom of the second gear is connected with a screw thread sleeve, the bottom of the motor is installed with a mounting plate, and the left end of the mounting plate is provided with a positioning plate, which relates to the technical field of threading mechanism, and the chain is driven by the motor, thereby driving the first gear and the second gear to mesh and rotate, driving the screw thread insert pin to rotate, which will cause the product to fall off after the screw thread, and the structural design is reasonable, which improves the use efficiency of the threading mechanism, is low in cost, durable, convenient for direct positioning and installation, and has low noise. However, the center distance of the side-by-side internal threads of the product is too small, which will result in a long product manufacturing cycle and high cost. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a thread twisting mechanism with a small center distance. Through the arrangement of four sets of needle bearings and gears, the structure is compact, which is conducive to the molding of four side-by-side internal threads with a very small center distance, and can reduce the manufacturing cycle of the product and reduce the manufacturing cost of the product; a cooling mechanism is composed of a thread inner core and a cooling block, and the cooling block is connected to cooling water to reduce the heat inside the core, which is conducive to the stable operation of the mechanism.

[0004] The utility model also provides a thread-twisting mechanism with the above-mentioned small center distance, including: a first mounting seat, the upper end of the first mounting seat is fixedly connected to the second mounting seat, the second mounting seat is fixedly connected to a needle bearing, the lower end of the first mounting seat is fixedly connected to a cooling block, the first mounting seat is fixedly connected to a sprocket, and the sprocket is transmission-connected to the needle bearing through a gear; a third mounting seat, the lower end of the third mounting seat is fixedly connected to the upper end of the second mounting seat, the third mounting seat is fixedly connected to a screw sleeve, the screw sleeve is threadedly connected to a screw inner core, the screw inner core is sleeved with the cooling block, and the screw sleeve is sleeved with the needle bearing.

[0005] According to the thread-twisting mechanism with a small center distance described in the utility model, the lower end of the first mounting seat is fixedly connected with a base, which is convenient for installation and fixation. The upper end of the base is fixedly connected with the lower end of the cooling block, which improves the stability of the structure.

[0006] According to the threading mechanism with a small center distance described in the utility model, the lower end of the needle bearing abuts against the upper end of the first mounting seat, making the structure compact.

[0007] According to the thread-twisting mechanism with a small center distance described in the utility model, the upper end of the sprocket abuts against the lower end of the second mounting seat, making the structure compact.

[0008] According to the small center distance threading mechanism of the utility model, a sealing plate is arranged at the upper end of the third mounting seat to prevent dust and water. The sealing plate is fixedly connected to the upper end of the third mounting seat by bolts, which is convenient for disassembly and maintenance.

[0009] According to the small center distance threading mechanism of the utility model, the side end of the second mounting seat is fixedly connected with the first hydraulic motor, which is convenient for providing power. The output end of the first hydraulic motor is connected to the sprocket through the driving wheel, which is conducive to the stable operation of the mechanism.

[0010] According to the small center distance threading mechanism of the utility model, the side end of the second mounting seat is fixedly connected with a second hydraulic motor, which is convenient for providing power. The output end of the second hydraulic motor is connected to the sprocket through the driving wheel, which is conducive to the stable operation of the mechanism.

[0011] According to the small center distance threading mechanism of the utility model, the side end of the second mounting seat is fixedly connected with a third hydraulic motor, which is convenient for providing power. The output end of the third hydraulic motor is connected to the sprocket through the driving wheel, which is conducive to the stable operation of the mechanism.

[0012] Beneficial Effects

[0013] 1. Compared with the prior art, this thread twisting mechanism with a small center distance has a compact structure through the arrangement of four sets of needle bearings and gears, which is conducive to the molding of four side-by-side internal threads with a small center distance, and can reduce the manufacturing cycle of the product and reduce the manufacturing cost of the product;

[0014] 2. Compared with the prior art, this thread twisting mechanism with a small center distance has a cooling mechanism composed of a thread inner core and a cooling block. The cooling block is connected to cooling water to reduce the heat inside the core, which is beneficial to the stable operation of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 It is a structural schematic diagram of a thread twisting mechanism with a small center distance of the utility model;

[0017] Figure 2 It is a schematic diagram of the top view of the structure of a thread twisting mechanism with a small center distance of the utility model;

[0018] Figure 3 It is a schematic diagram of the longitudinal cross-section structure of a thread twisting mechanism with a small center distance of the utility model;

[0019] Figure 4 It is a schematic diagram of the transverse cross-sectional structure of a thread twisting mechanism with a small center distance of the utility model.

[0020] Legend:

[0021] 1. Base; 2. Second mounting seat; 3. Driving wheel; 4. First hydraulic motor; 5. Third mounting seat; 6. Closing plate; 7. Bolts; 8. Second hydraulic motor; 9. Third hydraulic motor; 10. Screw thread inner core; 11. Screw thread sleeve; 12. Cooling block; 13. Gear; 14. First mounting seat; 15. Needle roller bearing; 16. Sprocket. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4The utility model embodiment is a threading mechanism with a small center distance, which includes: a first mounting seat 14, the upper end of the first mounting seat 14 is fixedly connected to the second mounting seat 2, and a needle bearing is installed. A needle bearing 15 is fixedly connected inside the second mounting seat 2, and the sleeve rotates as a guide for the diameter. The lower end of the needle bearing 15 abuts against the upper end of the first mounting seat 14 to form a compact structure. The lower end of the first mounting seat 14 is fixedly connected to a cooling block 12, which is connected to cooling water to reduce the heat inside the core. A sprocket 16 is fixedly connected inside the first mounting seat 14 for transmission. The upper end of the sprocket 16 abuts against the lower end of the second mounting seat 2 to form a compact structure. The sprocket 16 is connected to the needle bearing 15 through a gear 13 to form a transmission. Structure, the lower end of the first mounting seat 14 is fixedly connected to the base 1 for installation and fixing, the upper end of the base 1 is fixedly connected to the lower end of the cooling block 12 to form a firm structure, the side end of the second mounting seat 2 is fixedly connected to the first hydraulic motor 4 to provide power, the output end of the first hydraulic motor 4 is connected to the sprocket 16 through the driving wheel 3 to form a transmission structure, the side end of the second mounting seat 2 is fixedly connected to the second hydraulic motor 8 to provide power, the output end of the second hydraulic motor 8 is connected to the sprocket 16 through the driving wheel 3 to form a transmission structure, the side end of the second mounting seat 2 is fixedly connected to the third hydraulic motor 9 to provide power, the output end of the third hydraulic motor 9 is connected to the sprocket 16 through the driving wheel 3 to form a transmission structure;

[0024] The third mounting seat 5, the upper end of the third mounting seat 5 is provided with a sealing plate 6 to cover the mechanism, the sealing plate 6 is fixedly connected to the upper end of the third mounting seat 5 by bolts 7 to form a detachable structure, the lower end of the third mounting seat 5 is fixedly connected to the upper end of the second mounting seat 2 to form the mounting structure of the third mounting seat, the third mounting seat 5 is fixedly connected with a screw sleeve 11, and a screw inner core is installed to serve as a molded thread inner thread, the screw sleeve 11 is threadedly connected with a screw inner core 10 to serve as the inner hole of the molded product, the screw inner core 10 is sleeved with a cooling block 12 to form a compact structure, and the screw sleeve 11 is sleeved with a needle bearing 15 to form a compact structure.

[0025] Working principle: start the first hydraulic motor 4, the second hydraulic motor 8 and the third hydraulic motor 9, which drive the screw sleeve 11 to rotate through the driving wheel 3, the sprocket 16, the gear 13 and the needle bearing 15. The screw sleeve 11 is used to form the internal thread. A screw core 10 is installed in the screw sleeve 11, and the screw core 10 is used to form the inner hole of the product.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A thread twisting mechanism with a small center distance, characterized in that: include: A first mounting seat (14), wherein the upper end of the first mounting seat (14) is fixedly connected to the second mounting seat (2), a needle bearing (15) is fixedly connected inside the second mounting seat (2), the lower end of the first mounting seat (14) is fixedly connected to the cooling block (12), a sprocket (16) is fixedly connected inside the first mounting seat (14), and the sprocket (16) is transmission-connected to the needle bearing (15) via a gear (13); A third mounting seat (5), wherein the lower end of the third mounting seat (5) is fixedly connected to the upper end of the second mounting seat (2), a screw sleeve (11) is fixedly connected inside the third mounting seat (5), a screw inner core (10) is connected to the screw sleeve (11) through internal threads, the screw inner core (10) is sleeved with a cooling block (12), and the screw sleeve (11) is sleeved with a needle bearing (15).

2. A thread twisting mechanism with a small center distance according to claim 1, characterized in that: The lower end of the first mounting seat (14) is fixedly connected to a base (1), and the upper end of the base (1) is fixedly connected to the lower end of the cooling block (12).

3. A thread twisting mechanism with a small center distance according to claim 1, characterized in that: The lower end of the needle roller bearing (15) abuts against the upper end of the first mounting seat (14).

4. A thread twisting mechanism with a small center distance according to claim 1, characterized in that: The upper end of the sprocket (16) abuts against the lower end of the second mounting seat (2).

5. The thread twisting mechanism with small center distance according to claim 1, characterized in that: A sealing plate (6) is provided at the upper end of the third mounting seat (5), and the sealing plate (6) is fixedly connected to the upper end of the third mounting seat (5) via bolts (7).

6. The thread twisting mechanism with small center distance according to claim 1, characterized in that: A first hydraulic motor (4) is fixedly connected to the side end of the second mounting seat (2), and an output end of the first hydraulic motor (4) is transmission-connected to a sprocket (16) via a driving wheel (3).

7. The thread twisting mechanism with small center distance according to claim 1, characterized in that: A second hydraulic motor (8) is fixedly connected to the side end of the second mounting seat (2), and an output end of the second hydraulic motor (8) is transmission-connected to a sprocket (16) via a driving wheel (3).

8. The thread twisting mechanism with small center distance according to claim 1, characterized in that: A third hydraulic motor (9) is fixedly connected to the side end of the second mounting seat (2), and an output end of the third hydraulic motor (9) is transmission-connected to a sprocket (16) via a driving wheel (3).

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