Locking structure for working turntable of shoulder injection machine

Abstract

A working turntable locking structure of a shoulder injection machine comprises a machine table, a turntable is arranged on the machine table, shoulder injection core rods are evenly distributed on the outer ring of the turntable, shoulder injection stations are installed on the periphery of the turntable, the bottom of the turntable is connected with a working shaft, the working shaft is driven by a motor below, and a circle of locking positioning holes are evenly distributed in the working shaft. A mounting support is arranged on the side face of the working shaft, a front supporting plate and a rear supporting plate are connected to the mounting support, a guide column is arranged between the front supporting plate and the rear supporting plate, a sliding block is mounted on the guide column, a positioning pin is connected to the surface of the sliding block, and a spring is arranged between the back face of the sliding block and the rear supporting plate. The elastic force of the spring enables the positioning pin to be clamped into the locking positioning hole, an air cylinder is installed on the installation support, a push rod is installed at the piston end of the air cylinder, a protruding block is arranged on the sliding block, and the push rod pushes the protruding block towards the direction of the rear supporting plate. According to the utility model, the positioning pin is clamped into the locking positioning hole, so that the shoulder injection core rod on the turntable is ensured to accurately stay below each station.

Description

Technical Field

[0001] This utility model relates to the field of shoulder injection machine technology, specifically to a locking structure for the working turntable of a shoulder injection machine. Background Technology

[0002] The shoulder injection machine is equipped with a turntable, around which are set up aluminum-plastic hose feeding station, aluminum-plastic hose inspection station, extrusion station, forming station, tube end inspection station and unloading station. The turntable rotates between the above stations to perform processing. During the rotation of the turntable, it is necessary to ensure that the shoulder injection mandrel on the turntable stops accurately at each station to ensure processing accuracy. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a locking structure for the working turntable of a shoulder injection machine, which addresses the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A locking structure for a shoulder injection machine's turntable includes a machine base with a turntable hole machined on the machine base. A turntable is installed inside the turntable hole, and shoulder injection mandrels are evenly distributed on the outer ring of the turntable. Shoulder injection stations are installed around the turntable. A working shaft is connected to the bottom of the turntable, and a gear one is connected below the working shaft. A motor is installed below the machine base, and a gear two is connected to the output shaft of the motor. Gear one and gear two mesh. A ring of locking positioning holes is evenly distributed on the working shaft. A mounting bracket is provided on the side of the working shaft, and a front support plate and a rear support plate are connected to the mounting bracket. A guide post is provided between the front and rear support plates, and a sliding block is installed on the guide post. A positioning pin is connected to the surface of the sliding block, and a spring is provided between the back of the sliding block and the rear support plate. The spring force causes the positioning pin to engage in the locking positioning hole. A cylinder is installed on the mounting bracket, and a push rod is installed on the piston end of the cylinder. A protrusion is provided on the sliding block, and the push rod pushes the protrusion towards the rear support plate.

[0006] Furthermore, the back of the sliding block is connected to a mounting post one, and the surface of the rear support plate is connected to a mounting post two, with the two ends of the spring respectively fitted onto mounting post one and mounting post two.

[0007] Furthermore, the front support plate is provided with a clearance hole for the clearance positioning pin.

[0008] Furthermore, the front end of the positioning pin is machined with a spherical surface.

[0009] Furthermore, a support base is connected to the bottom of the machine tool, and the bottom of the working shaft is connected to the support base through a bearing.

[0010] Furthermore, the mounting bracket and motor are fixed on the support base.

[0011] Compared with the prior art, the present invention provides a locking structure for the working turntable of a shoulder injection machine. When the shoulder injection machine is working, the turntable above the working shaft is locked and fixed by the positioning pin being inserted into the locking positioning hole, thereby eliminating the meshing gap in the gear transmission process and ensuring that the shoulder injection mandrel on the turntable is accurately positioned below each station. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0014] Among them, 1. machine base, 2. turntable, 3. injection mandrel, 4. working shaft, 5. support base, 6. gear one, 7. motor, 8. gear two, 9. locking positioning hole, 10. mounting bracket, 11. front support plate, 12. rear support plate, 13. guide post, 14. sliding block, 15. positioning pin, 16. spring, 17. cylinder, 18. push rod, 19. protrusion. Detailed Implementation

[0015] The technical solutions in the embodiments of this utility model will be clearly and completely described below.

[0016] like Figure 1 and Figure 2 As shown, a locking structure for a shoulder injection machine's working turntable includes a machine base 1 with a turntable hole machined on it. A turntable 2 is installed inside the turntable hole, and shoulder injection mandrels 3 are evenly distributed on the outer ring of the turntable 2. Shoulder injection stations are installed around the turntable 2. A working shaft 4 is connected to the bottom of the turntable 2, and the upper end of the working shaft 4 is connected to the turntable 2 via a flange plate. A support base 5 is connected to the bottom of the machine base 1, and the bottom of the working shaft 4 is connected to the support base 5 via a bearing. A gear 6 is connected below the working shaft 4 and is mounted on the working shaft 4 via a key block. The bottom of the gear 6 is locked by a gear nut. A motor 7 is installed below the machine base 1 and is fixed to the support base 5. A gear 8 is connected to the output shaft of the motor 7. Gear 6 is a large gear, and gear 8 is a small gear. The meshing of gear 6 and gear 8 causes the working shaft 4 to rotate at a reduced speed.

[0017] A ring of locking and positioning holes 9 are evenly distributed on the working shaft 4. A mounting bracket 10 is provided on the side of the working shaft 4 and is fixed on the support base 5. A front support plate 11 and a rear support plate 12 are connected to the mounting bracket 10. Two guide posts 13 are connected between the front support plate 11 and the rear support plate 12. A sliding block 14 is installed on the guide post 13. A positioning pin 15 is connected to the surface of the sliding block 14. A spring 16 is provided between the back of the sliding block 14 and the rear support plate 12. A mounting post one is connected to the back of the sliding block 14 and a mounting post two is connected to the surface of the rear support plate 12. The two ends of the spring 16 are respectively sleeved on the mounting post one and the mounting post two. Under the elastic force of the spring 16, the positioning pin 15 is inserted into the locking and positioning hole 9.

[0018] In this embodiment, the front support plate 11 is provided with a clearance hole for the clearance positioning pin 15. The front end of the positioning pin 15 is machined with a spherical surface, which makes it easier for the positioning pin 15 to be inserted into the locking positioning hole 9.

[0019] A cylinder 17 is mounted on the mounting bracket 10. A push rod 18 is mounted on the piston end of the cylinder 17. A protrusion 19 is provided on the sliding block 14. After the positioning pin 15 is engaged in the locking positioning hole 9, the working shaft 4 and the turntable 2 above the working shaft 4 are fixed. After each station completes its corresponding processing, the piston on the cylinder 17 drives the push rod 18 to push the protrusion 19 towards the rear support plate 12, so that the positioning pin 15 is disengaged from the locking positioning hole 9. At this time, the working shaft 4 rotates. Then the piston on the cylinder 17 disengages from the protrusion 19. Under the action of the spring 16, after the working shaft 4 stops, the positioning pin 15 can re-enter the next locking positioning hole 9.

[0020] This utility model is not limited to the embodiments described. Those skilled in the art can still make some modifications or changes without departing from the spirit and scope of this utility model. Therefore, the scope of protection of this utility model shall be determined by the scope defined in the claims.

Claims

1. A locking structure for a rotating turntable of a shoulder injection machine, comprising a machine base, a turntable hole machined on the machine base, a turntable disposed within the turntable hole, shoulder injection mandrels evenly distributed on the outer circumference of the turntable, shoulder injection stations installed around the turntable, a working shaft connected to the bottom of the turntable, a gear one connected below the working shaft, a motor installed below the machine base, a gear two connected to the output shaft of the motor, and gear one meshing with gear two, characterized in that: The working shaft has a ring of locking and positioning holes evenly distributed around it. A mounting bracket is provided on the side of the working shaft. A front support plate and a rear support plate are connected to the mounting bracket. A guide post is provided between the front support plate and the rear support plate. A sliding block is installed on the guide post. A positioning pin is connected to the surface of the sliding block. A spring is provided between the back of the sliding block and the rear support plate. The spring force causes the positioning pin to engage with the locking and positioning hole. A cylinder is installed on the mounting bracket. A push rod is installed on the piston end of the cylinder. A protrusion is provided on the sliding block. The push rod pushes the protrusion toward the rear support plate.

2. The locking structure for the working turntable of an injection molding machine according to claim 1, characterized in that: The back of the sliding block is connected to mounting post one, and the surface of the rear support plate is connected to mounting post two. The two ends of the spring are respectively sleeved on mounting post one and mounting post two.

3. The locking structure for the working turntable of an injection molding machine according to claim 1, characterized in that: The front support plate is provided with a clearance hole for the clearance positioning pin.

4. The locking structure for the working turntable of an injection molding machine according to claim 1, characterized in that: The front end of the positioning pin is machined with a spherical surface.

5. The locking structure for the working turntable of an injection molding machine according to claim 1, characterized in that: The bottom of the machine tool is connected to a support base, and the bottom of the working shaft is connected to the support base through a bearing.

6. The locking structure for the working turntable of an injection molding machine according to claim 5, characterized in that: The mounting bracket and motor are fixed on the support base.

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