Automatic thread screwing device for rod-shaped products

Abstract

The utility model discloses an automatic thread screwing device for rod-shaped products, which comprises a machine shell, a product clamping mechanism is arranged on the outer side of the machine shell, a torsion motor is fixedly arranged on the inner side of the machine shell, and a transmission mechanism is arranged between the torsion motor and the product clamping mechanism and used for driving the product clamping mechanism to rotate. A product detection mechanism is fixedly installed on the machine shell and used for detecting whether a product is placed in the product clamping mechanism or not. The automatic screwing device has the advantages that the whole device is simple in structure and convenient to operate, the automatic screwing function of rod-shaped products can be achieved, production efficiency is improved, and manufacturing time and manufacturing cost are reduced.

Description

Technical Field

[0001] The utility model relates to automatic assembly equipment for products, in particular to an automatic thread tightening device for rod-shaped products. Background Art

[0002] In the assembly method of many rod-shaped products on the market, threaded connection is more secure and convenient to disassemble. For example, after the pen core is loaded, the tail or head of the pen is screwed on to fix the end cap. At present, the assembly of the end cap of such rod-shaped products is usually done by manual tightening, which has the problems of long working hours and low efficiency. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide an automatic thread tightening device for rod-shaped products, which has a simple structure and is easy to operate. It can realize the automatic tightening function of the upper end cover of the rod-shaped product, improve production efficiency, reduce manufacturing time, and reduce manufacturing costs.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] A thread automatic tightening device for rod-shaped products comprises a casing, a product clamping mechanism is arranged on the outer side of the casing, a torque motor is fixedly arranged on the inner side of the casing, a transmission mechanism is arranged between the torque motor and the product clamping mechanism for driving the product clamping mechanism to rotate, and a product detection mechanism is fixedly installed on the casing for detecting whether the product is placed in the product clamping mechanism.

[0006] Preferably, the product clamping mechanism includes a cylinder, a pressure wheel and two rotating wheels, the cylinder is vertically fixed on the outside of the casing, a mounting seat is fixedly provided on the piston rod of the cylinder, the pressure wheel is rotatably connected to the mounting seat, the two rotating wheels are located below the pressure wheel and are symmetrically distributed along the pressure wheel, the rotating wheel is rotatably connected to the casing, and the rotating wheel is connected to the transmission mechanism.

[0007] Preferably, the transmission mechanism is located on the inner side of the casing, and includes a driving wheel and two transmission wheels. The driving wheel is coaxially fixed with the output shaft of the torque motor, and the two transmission wheels are coaxially fixed with the rotating wheel one by one. The driving wheel drives the transmission wheel to rotate through a belt.

[0008] Preferably, a belt tensioning pulley is rotatably connected to the inner side of the housing.

[0009] Preferably, there are two belt tensioning wheels, and the belt tensioning wheels and the transmission wheels are symmetrically distributed along the driving wheel.

[0010] Preferably, a product positioning mechanism is fixedly provided on the outer side of the housing, and the product positioning mechanism is located on the outer side of the rotating wheel.

[0011] Preferably, the product positioning mechanism comprises a display rack fixedly mounted on the housing, the upper end surface of the display rack is provided with a limiting groove for placing the product, and the two rotating wheels are symmetrically distributed along the limiting groove.

[0012] Preferably, the rotating wheel is made of polyurethane, and the pressing wheel is made of silicone.

[0013] Preferably, the product detection mechanism includes a photoelectric sensor fixed on the inner side of the casing, and a light-transmitting hole is provided on the casing. When the product is placed in the product clamping mechanism, the light-transmitting hole faces the product, and the photoelectric sensor faces the light-transmitting hole.

[0014] Compared with the prior art, the utility model has the advantages that the entire device has a simple structure, is easy to operate, can realize the automatic tightening function of the screw of rod-shaped products, improves production efficiency, and reduces manufacturing time and manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the use state of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model after removing the front end surface of the housing;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model after removing the side of the casing;

[0018] Figure 4 It is a front view of the transmission mechanism of the utility model;

[0019] Figure 5 For this utility model Figure 3 Schematic diagram of the three-dimensional structure in another direction.

[0020] Among them: 1. Torque motor; 2. Belt; 3. Photoelectric sensor; 4. Drive wheel; 5. Cylinder; 6. Pressure wheel; 7. Rotating wheel; 8. Product; 9. End cover; 10. Drive wheel; 11. Casing; 12. Display rack; 13. Limiting groove; 14. Mounting seat; 15. Belt tensioner. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] As shown in the figure, an automatic thread tightening device for rod-shaped products includes a casing 11, a product clamping mechanism is arranged on the outer side of the casing 11, the product clamping mechanism includes a cylinder 5, a clamping wheel 6 and two rotating wheels 7, the rotating wheel 7 is made of polyurethane, the polyurethane material of the rotating wheel 7 can improve the durability of the product, the clamping wheel 6 is made of silicone, the silicone material of the clamping wheel 6 can make the product 8 better fit with the rotating wheel 7, and make the friction between the product 8 and the rotating wheel 7 greater, the cylinder 5 is vertically fixed to the outer side of the casing 11, a mounting seat 14 is fixedly arranged on the piston rod of the cylinder 5, the clamping wheel 6 is rotatably connected to the mounting seat 14, the two rotating wheels 7 are located below the clamping wheel 6 and symmetrically distributed along the clamping wheel 6, the rotating wheel 7 is rotatably connected to the casing 11, a torque motor 1 is fixedly arranged on the inner side of the casing 11, a transmission mechanism is arranged between the torque motor 1 and the product clamping mechanism, the transmission system is used to drive the product clamping mechanism to rotate, the transmission mechanism is located on the inner side of the casing 11, the transmission mechanism includes a driving wheel 10 and two The transmission wheel 4 and the driving wheel 10 are coaxially fixed with the output shaft of the torque motor 1. The two transmission wheels 4 are coaxially fixed with the rotating wheel 7 in a one-to-one correspondence. The driving wheel 10 drives the transmission wheel 4 to rotate through the belt 2. The inner side of the casing 11 is rotatably connected to two belt tensioning wheels 15. The belt tensioning wheels 15 and the transmission wheel 4 are symmetrically distributed along the driving wheel 10. A product positioning mechanism is fixedly arranged on the outer side of the casing 11. The product detection mechanism is used to detect whether the product 8 is placed in the product clamping mechanism. The product positioning mechanism is located on the outer side of the rotating wheel 7. The product positioning mechanism includes a display rack 12 fixedly arranged on the casing 11. The upper end surface of the display rack 12 is provided with a limiting groove 13 for placing the product 8. The two rotating wheels 7 are symmetrically distributed along the limiting groove 13. A product detection mechanism is fixedly installed on the casing 11. The product detection mechanism includes a photoelectric sensor 3 fixed on the inner side of the casing 11. A light-transmitting hole is provided on the casing 11. When the product 8 is placed in the product clamping mechanism, the light-transmitting hole is facing the product 8, and the photoelectric sensor 3 is facing the light-transmitting hole.

[0023] When the utility model is used, the end cap 9 is first pre-installed on one end of the product 8 (such as a pen), and then the product 8 with the end cap 9 is manually placed on the limiting groove 13, and the end cap 9 is located between the two rotating wheels 7. The positioning of the product 8 by the limiting groove 13 makes the end cap 9 located at the center of the two rotating wheels 7. At this time, the photoelectric sensor 3 detects that the product 8 is placed, and the photoelectric sensor 3 transmits a signal to the control system. The control system controls the cylinder 5 to start, and the cylinder 5 drives the clamping wheel 6 to start moving downward, so that the clamping wheel 6 The end cover 9 is pressed onto the two rotating wheels 7, and then the torque motor 1 is controlled to start, driving the driving wheel 10 to rotate. Driven by the belt 2, the transmission wheel 4 rotates, and the transmission wheel 4 drives the rotating wheel 7 to rotate synchronously. Since the other end of the product 8 is always in a handheld state, the two rotating wheels 7 drive the end cover 9 to rotate and tighten it on one end of the product 8. When the end cover 9 is completely tightened, the torque motor 1 stops rotating after detecting the torque change, completing the tightening process of the end cover 9, and then the cylinder 5 drives the clamping wheel 6 to move upward, and the product 8 with the end cover 9 can be removed at this time.

[0024] In the above embodiment, the signal transmission from the photoelectric sensor 3 to the control system and the control of the cylinder 5 and the torque motor 1 by the control system are both achieved through the existing technology.

[0025] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

Claims

1. An automatic thread tightening device for rod-shaped products, characterized in that: The invention comprises a casing (11), wherein a product clamping mechanism is arranged on the outer side of the casing (11), a torque motor (1) is fixedly arranged on the inner side of the casing (11), a transmission mechanism is arranged between the torque motor (1) and the product clamping mechanism, and is used to drive the product clamping mechanism to rotate; and a product detection mechanism is fixedly installed on the casing (11), and is used to detect whether a product (8) is placed in the product clamping mechanism.

2. The automatic thread tightening device for rod-shaped products according to claim 1, characterized in that: The product clamping mechanism comprises a cylinder (5), a pressure wheel (6) and two rotating wheels (7); the cylinder (5) is vertically fixed on the outside of the housing (11); a mounting seat (14) is fixedly provided on the piston rod of the cylinder (5); the pressure wheel (6) is rotatably connected to the mounting seat (14); the two rotating wheels (7) are located below the pressure wheel (6) and are symmetrically distributed along the pressure wheel (6); the rotating wheel (7) is rotatably connected to the housing (11), and the rotating wheel (7) is connected to the transmission mechanism.

3. The automatic thread tightening device for rod-shaped products according to claim 2, characterized in that: The transmission mechanism is located inside the housing (11), and comprises a driving wheel (10) and two transmission wheels (4); the driving wheel (10) is coaxially fixed to the output shaft of the torque motor (1); the two transmission wheels (4) are coaxially fixed to the rotating wheel (7) in a one-to-one correspondence; the driving wheel (10) drives the transmission wheels (4) to rotate via a belt (2).

4. The automatic thread tightening device for rod-shaped products according to claim 3, characterized in that: The inner side of the housing (11) is rotatably connected to a belt tensioning wheel (15).

5. The automatic thread tightening device for rod-shaped products according to claim 4, characterized in that: There are two belt tensioning wheels (15), and the belt tensioning wheels (15) and the transmission wheel (4) are symmetrically distributed along the driving wheel (10).

6. The automatic thread tightening device for rod-shaped products according to claim 2, characterized in that: A product positioning mechanism is fixedly arranged on the outer side of the housing (11), and the product positioning mechanism is located on the outer side of the rotating wheel (7).

7. The automatic thread tightening device for rod-shaped products according to claim 6, characterized in that: The product positioning mechanism comprises a placement rack (12) fixedly arranged on the housing (11), the upper end surface of the placement rack (12) being provided with a limiting groove (13) for placing the product (8), and the two rotating wheels (7) being symmetrically distributed along the limiting groove (13).

8. The automatic thread tightening device for rod-shaped products according to claim 2, characterized in that: The material of the rotating wheel (7) is polyurethane, and the material of the pressing wheel (6) is silicone.

9. The automatic thread tightening device for rod-shaped products according to claim 1, characterized in that: The product detection mechanism comprises a photoelectric sensor (3) fixed on the inner side of the housing (11); a light-transmitting hole is provided on the housing (11); when the product (8) is placed in the product clamping mechanism, the light-transmitting hole faces the product (8), and the photoelectric sensor (3) faces the light-transmitting hole.

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