Nozzle head device of injection molding machine

Abstract

The utility model belongs to the technical field of injection molding, and particularly relates to an injection molding machine nozzle head device which comprises a nozzle body and an injection molding pipe, a connecting mechanism is arranged on the nozzle body and the injection molding pipe, the connecting mechanism comprises a fixing assembly and a fixing shell connected with the nozzle body in a sliding sleeve mode, a set of clamping holes are formed in the fixing shell, and the clamping holes are matched with the clamping holes. A set of fixing blocks are fixedly connected to the injection molding pipe, clamping grooves are formed in the side walls of the fixing blocks, and clamping assemblies used for clamping are arranged on the fixing shell. The fastening assembly is arranged on the fixing shell and used for fastening the nozzle body so as to solve the problems that due to the fact that the nozzle head works at high temperature and high pressure, the surface of the nozzle head is prone to abrasion or damage, frequent replacement is needed, a traditional nozzle head is usually fixed through threads, tools need to be used for dismounting and mounting during replacement, operation is complex, and time is consumed.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding technology, specifically an injection molding machine nozzle head device. Background Technology

[0002] Injection molding machines are widely used equipment in the plastics processing industry, used to heat and melt plastic granules and inject them into molds for shaping. The nozzle head is one of the key components of an injection molding machine; its function is to guide the molten plastic from the injection molding machine barrel to the mold gate.

[0003] In the existing technology, since the nozzle head works under high temperature and high pressure, its surface is easily worn or damaged and needs to be replaced frequently. Traditional nozzle heads are usually fixed by threads, and tools are needed to disassemble and install them when replacing them, which is complicated and time-consuming.

[0004] Therefore, this utility model provides a nozzle head device for injection molding machines. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and solve the problem that nozzle heads are prone to wear or damage due to working under high temperature and pressure, requiring frequent replacement, traditional nozzle heads are usually fixed by threads, and replacement requires the use of tools for disassembly and installation, which is complicated and time-consuming.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A nozzle head device for an injection molding machine, comprising a nozzle body and an injection tube, wherein a connecting mechanism is provided on the nozzle body and the injection tube, and the connecting mechanism includes:

[0007] The fixing assembly includes a fixing shell that is slidably connected to the nozzle body, the fixing shell having a set of locking holes, a set of fixing blocks fixed to the injection tube, the fixing blocks having locking grooves on their side walls, and the fixing shell having a locking assembly for locking.

[0008] Fastening assembly, mounted on the housing, is used to fasten the nozzle body.

[0009] Preferably, the locking assembly includes a set of L-shaped blocks fixed to the fixed shell, a square rod slidably connected to the L-shaped blocks through a square hole, a locking block fixed to one end of the square rod, and the locking block connected to the L-shaped blocks through a first spring.

[0010] Preferably, a fixing ring is fixedly connected to the fixing shell, and a set of circular rods are slidably connected to the fixing ring through a set of circular holes. A circular ring is fixedly connected to one end of the set of circular rods, and the circular ring is connected to the fixing ring through a set of second springs.

[0011] Preferably, a set of concave blocks are fixed to the side wall of the circular ring, and a sliding rod is fixed between the opposite side walls of the concave blocks. A rectangular block is fixed to the end of the square rod away from the locking block. An inclined groove is opened on the rectangular block, and the sliding rod is slidably connected in the inclined groove.

[0012] Preferably, the fastening assembly includes a first circular piece fixedly connected to the outer wall of the nozzle body near the injection tube, and a second circular piece fixedly connected to the outer wall of the injection tube near the nozzle body.

[0013] Preferably, the sidewall of the fixed shell is threadedly connected to a pair of threaded rods through a pair of threaded holes, one end of the threaded rod is fixedly connected to a knob, and the other end of the threaded rod is fixedly connected to a fastening block.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The injection molding machine nozzle head device of this utility model can lock the locking hole and locking groove through the set locking component, thereby fixing the position of the fixing shell and achieving the effect of fixing the nozzle body. Moreover, the fixing shell is connected to the nozzle body through a sliding sleeve, which can be directly removed after disassembly. This solves the problem that in the prior art, the traditional nozzle head is usually fixed by threads, and tools are required for disassembly and installation when replacing it, which is complicated and time-consuming.

[0016] 2. The injection molding machine nozzle head device of this utility model, by rotating the knob to rotate the threaded rod, can make the fastening block press the first circular piece on the nozzle body, so that it fits against the second circular piece fixed on the injection tube, making the connection between the nozzle body and the injection tube tighter and avoiding leakage problems. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a schematic diagram of the injection-molded tube in this utility model;

[0020] Figure 3 This is a cross-sectional view of the fixed shell in this utility model;

[0021] Figure 4 This is a schematic diagram of the rectangular block in this utility model;

[0022] In the diagram: 1. Nozzle body; 2. Injection tube; 3. Fixing shell; 4. Locking hole; 5. Fixing block; 6. Locking groove; 7. L-shaped block; 8. Square rod; 9. Locking block; 10. First spring; 11. Fixing ring; 12. Circular rod; 13. Circular ring; 14. Second spring; 15. Concave block; 16. Sliding rod; 17. Rectangular block; 18. Inclined groove; 19. First circular piece; 20. Second circular piece; 21. Threaded rod; 22. Knob; 23. Fastening block. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 4 As shown in the figure, an injection molding machine nozzle head device according to an embodiment of the present invention includes a nozzle body 1 and an injection tube 2. A connecting mechanism is provided on the nozzle body 1 and the injection tube 2. The connecting mechanism includes: a fixing component, including a fixing shell 3 that is slidably connected to the nozzle body 1, a set of locking holes 4 opened on the fixing shell 3, a set of fixing blocks 5 fixedly connected to the injection tube 2, a locking groove 6 opened on the side wall of the fixing block 5, and a locking component for locking on the fixing shell 3; and a fastening component, which is provided on the fixing shell 3 for fastening the nozzle body 1.

[0025] During operation, the locking components can lock the locking hole 4 and locking groove 6, thereby fixing the position of the fixing shell 3 and achieving the effect of fixing the nozzle body 1. The fixing shell 3 is connected to the nozzle body 1 by a sliding sleeve, and can be directly removed after disassembly. This solves the problem that in the existing technology, the traditional nozzle head is usually fixed by threads, and tools are required for disassembly and installation when replacing it, which is complicated and time-consuming.

[0026] The locking assembly includes a set of L-shaped blocks 7 fixedly attached to the fixed shell 3. A square rod 8 is slidably connected to the L-shaped blocks 7 through a square hole. A locking block 9 is fixedly attached to one end of the square rod 8. The locking block 9 is connected to the L-shaped blocks 7 through a first spring 10.

[0027] A fixing ring 11 is fixedly connected to the fixing shell 3. A set of circular rods 12 are slidably connected to the fixing ring 11 through a set of circular holes. A circular ring 13 is fixedly connected to one end of the set of circular rods 12. The circular ring 13 is connected to the fixing ring 11 through a set of second springs 14.

[0028] A set of concave blocks 15 are fixed to the side wall of the circular ring 13. A sliding rod 16 is fixed between the concave blocks 15 and the opposite side wall. A rectangular block 17 is fixed to the end of the square rod 8 away from the locking block 9. An inclined groove 18 is opened on the rectangular block 17. The sliding rod 16 is slidably connected in the inclined groove 18.

[0029] During operation, by pushing the circular ring 13, the sliding block fixed between the concave blocks 15 can slide in the inclined groove 18, causing the rectangular block 17 to move under pressure. This allows the square rod 8 to drive the locking block 9 to move, so that a set of locking blocks 9 can be separated from the locking groove 6 and the locking hole 4 at the same time, allowing the fixed shell 3 to be removed. The design of the first spring 10 and the second spring 14 ensures the automatic reset of the locking block 9 and the circular ring 13, achieving the purpose of quickly replacing the nozzle body 1.

[0030] The fastening assembly includes a first circular piece 19 fixedly attached to the outer wall of the nozzle body 1 near the injection tube 2, and a second circular piece 20 fixedly attached to the outer wall of the injection tube 2 near the nozzle body 1.

[0031] A pair of threaded rods 21 are threadedly connected to the side wall of the fixed shell 3 through a pair of threaded holes. A knob 22 is fixed to one end of the threaded rod 21, and a fastening block 23 is fixed to the other end of the threaded rod 21.

[0032] During operation, the threaded rod 21 is rotated by turning the knob 22, which causes the fastening block 23 to press the first circular piece 19 on the nozzle body 1, making it fit against the second circular piece 20 fixed on the injection tube 2, so that the connection between the nozzle body 1 and the injection tube 2 is tighter and leakage is avoided.

[0033] Working principle: The locking component can lock the locking hole 4 and the locking groove 6, thereby fixing the position of the fixing shell 3 and fixing the nozzle body 1. The fixing shell 3 is connected to the nozzle body 1 by a sliding sleeve, which can be directly removed after disassembly. This solves the problem that in the existing technology, the traditional nozzle head is usually fixed by threads, and tools are required for disassembly and installation when replacing it, which is complicated and time-consuming.

[0034] By pushing the circular ring 13, the sliding block fixed between the concave blocks 15 can slide in the inclined groove 18, causing the rectangular block 17 to move under pressure. This allows the square rod 8 to drive the locking block 9 to move, so that a set of locking blocks 9 can be separated from the locking groove 6 and the locking hole 4 at the same time, allowing the fixed shell 3 to be removed. The design of the first spring 10 and the second spring 14 ensures the automatic reset of the locking block 9 and the circular ring 13, achieving the purpose of quickly replacing the nozzle body 1.

[0035] By rotating the knob 22, the threaded rod 21 is rotated, which allows the fastening block 23 to press the first circular piece 19 on the nozzle body 1, so that it fits against the second circular piece 20 fixed on the injection tube 2, making the connection between the nozzle body 1 and the injection tube 2 tighter and preventing leakage.

[0036] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A nozzle head device for an injection molding machine, comprising a nozzle body (1) and an injection tube (2), characterized in that: A connecting mechanism is provided on the nozzle body (1) and the injection tube (2), the connecting mechanism including: The fixing assembly includes a fixing shell (3) that is slidably connected to the nozzle body (1), a set of locking holes (4) is provided on the fixing shell (3), a set of fixing blocks (5) is fixedly connected to the injection tube (2), a locking groove (6) is provided on the side wall of the fixing block (5), and a locking assembly for locking is provided on the fixing shell (3). A fastening assembly is provided on the fixed housing (3) for fastening the nozzle body (1).

2. The injection molding machine nozzle head device according to claim 1, characterized in that: The positioning assembly includes a set of L-shaped blocks (7) fixedly attached to the fixed shell (3). A square rod (8) is slidably connected to the L-shaped block (7) through a square hole. A positioning block (9) is fixedly attached to one end of the square rod (8). The positioning block (9) is connected to the L-shaped block (7) through a first spring (10).

3. The injection molding machine nozzle head device according to claim 2, characterized in that: A fixing ring (11) is fixedly connected to the fixing shell (3). A set of circular rods (12) are slidably connected to the fixing ring (11) through a set of circular holes. A circular ring (13) is fixedly connected to one end of the set of circular rods (12). The circular ring (13) is connected to the fixing ring (11) through a set of second springs (14).

4. The injection molding machine nozzle head device according to claim 3, characterized in that: A set of concave blocks (15) are fixed to the side wall of the circular ring (13). A sliding rod (16) is fixed between the concave blocks (15) and the opposite side wall. A rectangular block (17) is fixed to the end of the square rod (8) away from the locking block (9). An inclined groove (18) is opened on the rectangular block (17). The sliding rod (16) is slidably connected in the inclined groove (18).

5. The nozzle head device for an injection molding machine according to claim 1, characterized in that: The fastening assembly includes a first circular piece (19) fixedly attached to the outer wall of the nozzle body (1) near the injection tube (2), and a second circular piece (20) fixedly attached to the outer wall of the injection tube (2) near the nozzle body (1).

6. The injection molding machine nozzle head device according to claim 1, characterized in that: The side wall of the fixed shell (3) is threaded with a pair of threaded rods (21) through a pair of threaded holes. A knob (22) is fixed to one end of the threaded rod (21), and a fastening block (23) is fixed to the other end of the threaded rod (21).

Images