Anti-loosening injection molding machine nozzle

Abstract

The anti-loosening injection molding machine nozzle comprises a nozzle body, the nozzle body comprises a nozzle head part and a nozzle seat connected with the nozzle head part, one end, far away from the nozzle head part, of the nozzle seat is connected with a connecting seat detachably connected with a charging barrel, and the interiors of the nozzle head part, the nozzle seat and the connecting seat are sequentially communicated. A plurality of anti-sliding blocks and a transmission assembly in transmission connection with the anti-sliding blocks are arranged at the end, close to the nozzle base, of the connecting base in the circumferential direction at equal intervals, and the transmission assembly drives the anti-sliding blocks to move in the circumferential direction perpendicular to the nozzle body. The top of the anti-sliding block abuts against the inner wall of the connecting end of the charging barrel, the stability of connection with the charging barrel is improved, the limiting ferrule abuts against the transmission rod, the anti-sliding block abuts against the inner wall of the connecting end of the charging barrel, and the stability of abutting of the anti-sliding block and the inner wall of the connecting end of the charging barrel is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine nozzle technology, and in particular to an injection molding machine nozzle that prevents loosening. Background Technology

[0002] The injection molding machine nozzle is one of the important components of the injection molding machine. The nozzle expels heated and molten plastic material from the screw of the injection molding machine and enters the mold through the nozzle head for injection molding. There are different types of nozzles, including straight-through nozzles and lock-in nozzles. The nozzle connection end of the injection molding machine is threaded to the barrel. During long-term use of the injection molding machine, due to various factors, the connection between the nozzle and the barrel may loosen, resulting in problems such as reduced product quality and damage to the mold and nozzle. Therefore, it is necessary to design an injection molding machine nozzle that prevents loosening. Utility Model Content

[0003] The problem this invention aims to solve is the issue of easy loosening of the connection between the nozzle and the barrel of an injection molding machine.

[0004] To solve the above-mentioned technical problems, this utility model provides an injection molding machine nozzle for preventing loosening, including a nozzle body. The nozzle body includes a nozzle head and a nozzle seat threadedly connected to the nozzle head. The nozzle seat is connected to a connecting seat detachably connected to the barrel connection end at one end away from the nozzle head. The nozzle head, nozzle seat, and connecting seat are internally connected in sequence. Multiple anti-slip blocks are equidistantly arranged in the circumferential direction at one end of the connecting seat near the nozzle seat, and a transmission component is provided to drive the anti-slip blocks. The transmission component drives the anti-slip blocks to move in a direction perpendicular to the circumference of the nozzle body so that the anti-slip blocks abut against the inner wall of the barrel. The transmission component includes a transmission rod, an inclined block, and a limiting sleeve. The transmission rod is slidably disposed on the connecting seat, the anti-slip blocks are slidably connected to the inclined block, and the limiting sleeve is slidably disposed on one end of the transmission rod away from the inclined block. The inclined block is connected to the bottom of the anti-slip blocks.

[0005] Preferably, the connecting seat has multiple mounting slots near the nozzle seat end, and the two ends of the fixing shell are connected to the inner wall of the mounting slot. The top of the fixing shell has two mounting holes. The number of anti-slip blocks is two and they are slidably disposed inside the mounting holes. The bottom of the two anti-slip blocks is simultaneously connected to the top of the inclined block. The transmission component is disposed between the mounting slot and the fixing shell.

[0006] Preferably, the fixed shell has a sliding hole at the end away from the connecting seat, the sliding hole, the inclined block and the transmission rod are correspondingly arranged, the transmission rod is slidably arranged inside the sliding hole, and part of the transmission rod is outside the fixed shell, one end of the transmission rod is connected to one end of the first spring, and the other end of the first spring is connected to the inside of the fixed shell.

[0007] Preferably, the top of the inclined block is connected to one end of a second spring, and the other end of the second spring is connected to the upper end of the inner wall of the fixed shell.

[0008] Preferably, the limiting sleeve is threadedly connected to the nozzle seat so that the transmission rod abuts against the limiting sleeve, and the surface of the limiting sleeve is provided with a hexagonal mounting section.

[0009] Preferably, the top of the fixing shell is flush with the surface of the connecting seat.

[0010] Preferably, the nozzle seat is threadedly connected to the nozzle head, and a hexagonal mounting section is provided on one end surface of the nozzle seat and the nozzle head.

[0011] Preferably, the top of the anti-slip block is provided with anti-slip particles.

[0012] Preferably, the bottom of the inclined block has an inclined structure.

[0013] Preferably, the two anti-slip blocks and the mounting holes are symmetrically arranged about the middle two sides of the fixing shell.

[0014] Compared with the prior art, this utility model provides an injection molding machine nozzle that prevents loosening, and has the following beneficial effects:

[0015] 1. This utility model, by setting up an anti-slip block, a transmission component, a transmission rod, an inclined block, and a limiting sleeve, increases the stability of the connection between the anti-slip block and the barrel by having the top of the anti-slip block abut against the inner wall of the barrel connection end, thus preventing the nozzle body and barrel connection from loosening. By setting up a transmission component, the transmission component drives the anti-slip block to move in a direction perpendicular to the circumference of the nozzle body, making it easier to control the movement of the anti-slip block. By having the limiting sleeve abut against the transmission rod, the limiting sleeve drives the transmission rod to move towards the inclined block, and the inclined block drives the anti-slip block to move in a direction perpendicular to the circumference of the nozzle body, so that the anti-slip block abuts against the inner wall of the barrel connection end, and improves the stability of the abutment between the anti-slip block and the inner wall of the barrel connection end, thus solving the problem of easy loosening of the connection between the injection molding machine nozzle and barrel. Attached Figure Description

[0016] Figure 1 This is a first schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a second schematic diagram of the main structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the anti-slip block and the transmission component of this utility model;

[0019] Figure 4 This is a schematic diagram of the fixed shell structure of this utility model;

[0020] Figure 5 This is a cross-sectional view of the internal structure of the nozzle body of this utility model.

[0021] In the figure: 1. Nozzle body; 101. Nozzle head; 102. Nozzle seat; 2. Connecting seat; 3. Anti-slip block; 4. Transmission assembly; 41. Transmission rod; 42. Inclined block; 43. Limiting collar; 5. Mounting groove; 6. Fixing shell; 7. Mounting hole; 8. Sliding hole; 9. First spring; 10. Second spring. Detailed Implementation

[0022] This utility model relates to an injection molding machine nozzle that prevents loosening, such as... Figure 1-5 As shown, the device includes a nozzle body 1, which includes a nozzle head 101 and a nozzle seat 102 threadedly connected to the nozzle head 101. A connecting seat 2, detachably connected to a barrel connection end, is connected to the end of the nozzle seat 102 away from the nozzle head 101. The nozzle head 101, nozzle seat 102, and connecting seat 2 are sequentially connected internally. Multiple anti-slip blocks 3 are equidistantly spaced in the circumferential direction near the end of the connecting seat 2 close to the nozzle seat 102. A transmission assembly 4 drives the anti-slip blocks 3 to move perpendicular to the nozzle body 1. The movement is circumferential, causing the anti-slip block 3 to abut against the inner wall of the material cylinder connection end. The transmission assembly 4 includes a transmission rod 41, an inclined block 42, and a limiting sleeve 43. The transmission rod 41 is slidably mounted on the connecting seat 2, the anti-slip block 3 is slidably connected to the inclined block 42, and the limiting sleeve 43 is slidably mounted on the end of the transmission rod 41 away from the inclined block 42. The inclined block 42 is connected to the bottom of the anti-slip block 3. The nozzle body 1 is formed by setting the nozzle head 101 and the nozzle seat 102. The connecting seat 2 is threadedly connected to the material cylinder connection end, so that the nozzle body... The nozzle body 1 is connected to the barrel. The molten plastic enters the connecting seat 2 from the barrel, then passes through the nozzle seat 102 and the nozzle head 101 in sequence, and then enters the mold through the nozzle head 101. By setting an anti-slider 3, the top of the anti-slider 3 abuts against the inner wall of the barrel connection end, increasing the stability of the connection between the nozzle body 1 and the barrel and preventing the connection from loosening. By setting a transmission component 4, the transmission component 4 drives the anti-slider 3 to move in a direction perpendicular to the circumference of the nozzle body 1, which facilitates the control of the movement of the anti-slider. The limiting collar 4 is used to control the movement of the anti-slider. 3 abuts against the transmission rod 41, and the limiting sleeve 43 drives the transmission rod 41 to move towards the tilting block 42. The tilting block 42 drives the anti-slip block 3 to move in a direction perpendicular to the circumference of the nozzle body 1, so that the anti-slip block 3 abuts against the inner wall of the barrel connection end, which makes it easy to change the height of the anti-slip block 3 in the direction perpendicular to the circumference, thus solving the problem of easy loosening of the connection between the injection molding machine nozzle and the barrel. When disassembling the nozzle, the limiting sleeve 43 releases the limiting of the transmission rod 41, so that the anti-slip block 3 is not supported by the tilting block 42. Then, the disassembly connecting seat 2 is rotated to easily disassemble the nozzle.

[0023] In this embodiment of the utility model, the connecting seat 2 is provided with a plurality of mounting grooves 5 near the nozzle seat 102. The two ends of the inner wall of the mounting groove 5 are connected to the two ends of the fixing shell 6. The top of the fixing shell 6 has two mounting holes 7. The number of anti-slip blocks 3 is two and they are slidably disposed inside the mounting holes 7 respectively. The bottom of the two anti-slip blocks 3 is simultaneously connected to the top of the inclined block 42. The transmission component 4 is disposed between the mounting groove 5 and the fixing shell 6. By setting the fixing shell 6 and the mounting holes 7, the stability of the transmission component 4 is improved. By setting two anti-slip blocks 3, the transmission cooperation between the anti-slip blocks 3 and the inclined block 42 is facilitated. By increasing the number of anti-slip blocks 3, the contact effect between the anti-slip blocks 3 and the inner wall of the barrel is improved.

[0024] In this embodiment of the utility model, a sliding hole 8 is provided at the end of the fixed shell 6 away from the connecting seat 2. The sliding hole 8, the inclined block 42, and the transmission rod 41 are correspondingly arranged. The transmission rod 41 is slidably disposed inside the sliding hole 8, and part of the transmission rod 41 is outside the fixed shell 6. One end of the transmission rod 41 is connected to one end of the first spring 9, and the other end of the first spring 9 is connected to the inside of the fixed shell 6. By setting the sliding hole 8 and the first spring 9, the sliding hole 8 limits the transmission rod 41, and the stability of the sliding of the transmission rod 41 is improved. The spring force of the first spring 9 acts on the transmission rod 41, which facilitates the transmission rod 41 to return to its original position. When the limiting collar 43 rotates away from the transmission rod 41, the first spring 9 drives the transmission rod 41, and the transmission rod 41 can return to its original position.

[0025] In this embodiment of the utility model, one end of the second spring 10 is connected to the top of the tilt block 42, and the other end of the second spring 10 is connected to the upper end of the inner wall of the fixed shell 6. By setting the second spring 10, the elastic force of the spring acts on the tilt block 42, which facilitates the anti-slip block 3 to return to its original position.

[0026] In this embodiment of the utility model, the limiting sleeve 43 is threadedly connected to the nozzle seat 102 so that the transmission rod 41 abuts against the limiting sleeve 43. The surface of the limiting sleeve 43 is provided with a hexagonal mounting section. By providing the limiting sleeve 43 to the nozzle seat 102 through the threaded connection, it is convenient to move the limiting sleeve 43 in the length direction of the nozzle seat 102. By providing the hexagonal mounting section, it is convenient to rotate the limiting sleeve 43.

[0027] In this embodiment of the utility model, the top of the fixed shell 6 is flush with the surface of the connecting seat 2. By setting the above structure, it is convenient to connect the connecting seat 2 and the connecting end of the barrel.

[0028] In an embodiment of this utility model, the nozzle seat 102 is threadedly connected to the nozzle head 101, and a hexagonal mounting section is provided on one end surface of the nozzle seat 102 and the nozzle head 101. By setting the above structure, it is convenient to clean the nozzle head 101, and the hexagonal mounting section facilitates the installation and disassembly of the nozzle seat 102 and the nozzle head 101.

[0029] In this embodiment of the invention, anti-slip particles are provided on the top of the anti-slip block 3. By providing anti-slip particles, the friction force on the top of the anti-slip block 3 is increased, thereby improving the contact effect between the top of the anti-slip block 3 and the inner wall of the connecting end of the material cylinder.

[0030] In an embodiment of this utility model, the bottom of the inclined block 42 is an inclined structure. By setting the above structure, it is convenient to connect the transmission rod 41 and the bottom of the inclined block 42 for transmission.

[0031] In this embodiment of the invention, the two anti-slip blocks 3 and the mounting holes 7 are symmetrically arranged about the middle two sides of the fixing shell 6. By setting the above structure, the stability of the anti-slip blocks 3 on the fixing shell 6 is improved.

[0032] In use, firstly, when installing the nozzle body 1, connect the connecting end of the connecting seat 2 to the inside of the material cylinder connecting end. Then, rotate the nozzle body 1 inwards towards the material cylinder connecting end via the hexagonal mounting end on the nozzle seat 102. When the fixed shell 6 is inside the material cylinder connecting end, rotate the limiting sleeve 43 towards the transmission rod 41. The limiting sleeve 43 drives the transmission rod 41 to move inwards towards the fixed shell 6 and slide in the sliding hole 8. Simultaneously, this stretches the first spring 9, causing the transmission rod 41 to move to the bottom of the inclined block 42, thus raising the inclined block 42. The inclined block 42 then drives the anti-slip block 3. The nozzle body 1 slides in the mounting hole 7 and the second spring 10 is compressed, causing the top of the anti-slip block 3 to rise to abut against the inner wall of the material cylinder connection end. At this time, the nozzle body 1 is installed. When disassembling the nozzle body 1, the limiting sleeve 43 is rotated away from the fixed shell 6. The transmission rod 41 is driven by the elastic force of the first spring 9 and returns to its original position. At the same time, the elastic force of the second spring 10 acts on the tilting block 42 and the tilting block 42 moves downward, driving the anti-slip block 3 to move into the mounting hole 7. Then, the nozzle seat 102 is rotated away from the material cylinder connection end, thereby disassembling the nozzle body 1.

[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An injection molding machine nozzle for preventing loosening, comprising a nozzle body (1), characterized in that, The nozzle body (1) includes a nozzle head (101) and a nozzle seat (102) threadedly connected to the nozzle head (101). A connecting seat (2) detachably connected to the barrel connection end is connected to the end of the nozzle seat (102) away from the nozzle head (101). The nozzle head (101), nozzle seat (102), and connecting seat (2) are sequentially connected internally. Multiple anti-slip blocks (3) are equidistantly spaced in the circumferential direction at the end of the connecting seat (2) near the nozzle seat (102), and a transmission assembly for driving the anti-slip blocks (3) is also included. 4) The transmission component (4) drives the anti-sliding block (3) to move in a direction perpendicular to the circumference of the nozzle body (1) so that the anti-sliding block (3) abuts against the inner wall of the barrel. The transmission component (4) includes a transmission rod (41), an inclined block (42), and a limiting ring (43). The transmission rod (41) is slidably disposed on the connecting seat (2). The anti-sliding block (3) is slidably connected to the inclined block (42). The limiting ring (43) is slidably disposed at one end of the transmission rod (41) away from the inclined block (42). The inclined block (42) is connected to the bottom of the anti-sliding block (3).

2. The injection molding machine nozzle for preventing loosening according to claim 1, characterized in that: The connecting seat (2) is provided with multiple mounting slots (5) at one end near the nozzle seat (102). The two ends of the inner wall of the mounting slot (5) are connected to the two ends of the fixing shell (6). The top of the fixing shell (6) has two mounting holes (7). There are two anti-slip blocks (3) and they are slidably disposed inside the mounting holes (7). The bottom of the two anti-slip blocks (3) is connected to the top of the inclined block (42) at the same time. The transmission component (4) is disposed between the mounting slot (5) and the fixing shell (6).

3. The injection molding machine nozzle for preventing loosening according to claim 2, characterized in that: The fixed shell (6) has a sliding hole (8) at the end away from the connecting seat (2). The sliding hole (8), the inclined block (42) and the transmission rod (41) are correspondingly arranged. The transmission rod (41) is slidably arranged inside the sliding hole (8), and part of the transmission rod (41) is outside the fixed shell (6). One end of the transmission rod (41) is connected to one end of the first spring (9), and the other end of the first spring (9) is connected to the inside of the fixed shell (6).

4. The injection molding machine nozzle for preventing loosening according to claim 3, characterized in that: The top of the inclined block (42) is connected to one end of the second spring (10), and the other end of the second spring (10) is connected to the upper end of the inner wall of the fixed shell (6).

5. The injection molding machine nozzle for preventing loosening according to claim 3, characterized in that: The limiting sleeve (43) is threadedly connected to the nozzle seat (102) so that the transmission rod (41) abuts against the limiting sleeve (43). The surface of the limiting sleeve (43) is provided with a hexagonal mounting section.

6. The injection molding machine nozzle for preventing loosening according to claim 2, characterized in that: The top of the fixed shell (6) is flush with the surface of the connecting seat (2).

7. The injection molding machine nozzle for preventing loosening according to claim 1, characterized in that: The nozzle seat (102) is threadedly connected to the nozzle head (101), and a hexagonal mounting section is provided on one end surface of the nozzle seat (102) and the nozzle head (101).

8. The injection molding machine nozzle for preventing loosening according to claim 1, characterized in that: The top of the anti-slip block (3) is provided with anti-slip particles.

9. The injection molding machine nozzle for preventing loosening according to claim 1, characterized in that: The bottom of the inclined block (42) is an inclined structure.

10. The injection molding machine nozzle for preventing loosening according to claim 2, characterized in that: The two anti-slip blocks (3) and the mounting holes (7) are symmetrically arranged about the middle two sides of the fixing shell (6).

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