Nozzle assembly for injection molding machine

Abstract

The invention relates to the technical field of injection molding machine nozzles, in particular to a nozzle assembly for an injection molding machine, the nozzle assembly comprises a nozzle and a nozzle dismounting piece, the nozzle comprises a tailstock section, a clamping section, a connecting section and a conical nozzle section which are hollow and are connected in sequence; the outer diameter of the clamping section is smaller than that of the connecting section; the nozzle dismounting part comprises two fixing parts which are symmetrically arranged and are spliced and sleeved on the clamping section, and a wrench matched with the fixing parts; the inner diameter of the fixing piece is matched with the inner diameter of the clamping section, and the outer diameter of the fixing piece is larger than the outer diameter of the connecting section. During use, the two fixing parts are spliced and sleeved on the outer surface of the clamping section, and the head part of the wrench is sleeved on the outer surface of the fixing part, so that the connection or disassembly of the tailstock section and the injection molding machine is realized. The nozzle assembly for the injection molding machine is provided, and a new thought is provided for mounting and dismounting of the nozzle (the outer diameter of the clamping section is smaller than the outer diameter of the connecting section).

Description

Technical Field

[0001] The invention relates to the technical field of injection molding machine nozzles, in particular to a nozzle assembly for an injection molding machine. Background Art

[0002] The injection molding machine is a precision mechanical equipment used to produce various plastic products. It melts the plastic material by heating it, injects it into the mold, and cools it to solidify, thus forming the desired plastic product. The nozzle of the injection molding machine is a key part of the injection unit. It is responsible for efficiently and accurately injecting the molten plastic material into the mold. The design and material of the nozzle have a direct impact on the stability of the injection molding process and the quality of the product. The nozzle usually needs to withstand high temperature and high pressure, so it is usually made of high temperature resistant and wear-resistant materials to ensure long-term stable operation and extend service life.

[0003] When the existing nozzle is installed on the discharge pipe of the injection molding machine, ring pliers are usually used for processing. However, when the outer diameters of the nozzle sections are different, especially when the outer diameter of the clamping section is smaller than the outer diameter of the connecting section, the ring pliers cannot be sleeved on the outer surface of the clamping section through the connecting section, so the nozzle cannot be installed and disassembled.

[0004] Therefore, it is very important to provide a nozzle assembly that can solve the above technical problems. Summary of the invention

[0005] In order to solve the above problems, an object of the present invention is to provide a nozzle assembly for an injection molding machine.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] The present invention provides a nozzle assembly for an injection molding machine, comprising a nozzle and a nozzle disassembly part.

[0008] The nozzle comprises a tailstock section, a clamping section, a connecting section and a conical nozzle section which are hollow inside and connected in sequence; the outer diameter of the clamping section is smaller than the outer diameter of the connecting section;

[0009] The nozzle disassembly member includes two fixing members symmetrically arranged and spliced ​​and sleeved on the clamping section, and a wrench matched with the fixing members; the inner diameter of the fixing member is matched with the inner diameter of the clamping section, and the outer diameter of the fixing member is larger than the outer diameter of the connecting section;

[0010] When in use, the two fixing pieces are spliced ​​and sleeved on the outer surface of the clamping section, and the head of the wrench is sleeved on the outer surface of the fixing piece to achieve connection or disassembly of the tailstock section and the injection molding machine.

[0011] In one embodiment of the present invention, the surface of the connecting section has segmented grooves along its length direction (to optimize the design of the nozzle and control the pressure distribution at the nozzle, thereby optimizing the entire injection molding process).

[0012] In one embodiment of the present invention, the segmented grooves are arranged in more than one group at intervals along the circumference of the connecting segment.

[0013] In one embodiment of the present invention, the segmented groove includes a first groove and a second groove connected to each other, the first groove is arranged on a side of the connecting section close to the clamping section, and the second groove is arranged on a side of the connecting section close to the conical nozzle section.

[0014] In one embodiment of the present invention, the depth of the second groove is greater than the depth of the first groove; a hole is provided on one side of the second groove close to the conical nozzle section (for optimizing the flow and heat dissipation of the molten plastic).

[0015] In one embodiment of the present invention, the clamping section is a hexagonal clamping section.

[0016] In one embodiment of the present invention, the length of the fixing member is smaller than the length of the clamping section.

[0017] In one embodiment of the present invention, the fixing member includes a first fixing section, a second fixing section, a third fixing section and a fourth fixing section;

[0018] One end of the second fixing segment is connected to the third fixing segment, and the other end is connected to the first fixing segment, and the end of the third fixing segment away from the second fixing segment is connected to the fourth fixing segment;

[0019] The first fixing section is parallel to the fourth fixing section.

[0020] In one embodiment of the present invention, the first fixing section and the fourth fixing section have the same length.

[0021] In one embodiment of the present invention, the angle between the first fixing section and the second fixing section, the angle between the second fixing section and the third fixing section, and the angle between the third fixing section and the fourth fixing section are all 120°.

[0022] In one embodiment of the present invention, the wrench is a box wrench;

[0023] The box spanner comprises a handle portion and a wreath-shaped head, and the inner diameter of the head is adapted to the outer diameters of two spliced ​​fixing members.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The nozzle assembly for an injection molding machine provided by the present invention provides a new idea for the installation and disassembly of a nozzle (the outer diameter of the clamping section is smaller than the outer diameter of the connecting section), by using a fixing piece formed by splicing to achieve a clamping connection with the clamping section, and then using a wrench and the fixing piece to cooperate to achieve the disassembly and installation of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a nozzle assembly for an injection molding machine of the present invention;

[0027] Figure 2 It is a structural schematic diagram of a nozzle in a nozzle assembly for an injection molding machine of the present invention;

[0028] Figure 3 A cross-sectional view of a nozzle in a nozzle assembly for an injection molding machine of the present invention;

[0029] Figure 4 It is a schematic diagram of the splicing of two fixing parts in a nozzle assembly for an injection molding machine of the present invention;

[0030] Figure 5 It is a cross-sectional view of a fixing member in a nozzle assembly for an injection molding machine of the present invention;

[0031] Figure 6 It is a structural schematic diagram of a wrench in a nozzle assembly for an injection molding machine of the present invention;

[0032] Numbers in the figure: 1, nozzle; 101, tailstock section; 102, clamping section; 103, connecting section; 104, conical nozzle section; 105, first groove; 106, second groove; 107, hole; 2, fixing piece; 201, first fixing section; 202, second fixing section; 203, third fixing section; 204, fourth fixing section; 3, wrench; 301, head; 302, handle. DETAILED DESCRIPTION

[0033] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", and "fourth" are only used to distinguish in the description and have no special meaning.

[0037] In the following embodiments, unless otherwise specified, the components or structures used are conventional components or structures in the art, as long as they can achieve the corresponding functions.

[0038] Example 1

[0039] This embodiment provides a nozzle assembly for an injection molding machine, such as Figures 1 to 6 As shown, it includes a nozzle 1 and a nozzle disassembly part, wherein the nozzle 1 includes a tail seat section 101, a clamping section 102, a connecting section 103 and a conical nozzle section 104 which are hollow inside and connected in sequence (the tail seat section 101, the clamping section 102, the connecting section 103 and the conical nozzle section 104 are a whole); the outer diameter of the clamping section 102 is smaller than the outer diameter of the connecting section 103; the nozzle disassembly part includes two fixing members 2 which are symmetrically arranged and spliced ​​and sleeved on the clamping section 102, and a wrench 3 adapted to the fixing members 2; the inner diameter of the fixing member 2 is adapted to the inner diameter of the clamping section 102, and the outer diameter of the fixing member 2 is larger than the outer diameter of the connecting section 103;

[0040] When in use, the two fixing members 2 are spliced ​​and sleeved on the outer surface of the clamping section 102, and the head 301 of the wrench 3 is sleeved on the outer surface of the fixing member 2 to achieve the connection or disassembly of the tailstock section 101 and the injection molding machine.

[0041] Furthermore, the surface of the connecting section 103 has segmented grooves along its length direction, wherein more than one group of segmented grooves are arranged at circumferential intervals along the connecting section 103, and each group of segmented grooves includes a first groove 105 and a second groove 106 connected to each other, the first groove 105 is arranged on a side of the connecting section 103 close to the clamping section 102, and the second groove 106 is arranged on a side of the connecting section 103 close to the conical nozzle section 104.

[0042] Furthermore, the depth of the second groove 106 is greater than the depth of the first groove 105 ; a hole 107 is provided on one side of the second groove 106 close to the conical nozzle section 104 .

[0043] Furthermore, the clamping section 102 is a hexagonal clamping section, and the length of the fixing member 2 is smaller than the length of the clamping section 102 .

[0044] Furthermore, the fixing member 2 includes a first fixing section 201, a second fixing section 202, a third fixing section 203 and a fourth fixing section 204 (the first fixing section 201, the second fixing section 202, the third fixing section 203 and the fourth fixing section 204 are integrated);

[0045] One end of the second fixing section 202 is connected to the third fixing section 203, and the other end is connected to the first fixing section 201. The end of the third fixing section 203 away from the second fixing section 202 is connected to the fourth fixing section 204.

[0046] The first fixing section 201 is parallel to the fourth fixing section 204, and the first fixing section 201 and the fourth fixing section 204 have the same length;

[0047] The included angle between the first fixing section 201 and the second fixing section 202 , the included angle between the second fixing section 202 and the third fixing section 203 , and the included angle between the third fixing section 203 and the fourth fixing section 204 are all 120°.

[0048] Furthermore, the wrench 3 is a box spanner 3, and the box spanner 3 includes a handle portion 302 and a wreath-shaped head 301, and the inner diameter of the head 301 is adapted to the outer diameter of the two spliced ​​fixing members 2.

[0049] When the nozzle 1 needs to be installed, the tail seat section 101 of the nozzle 1 is placed at a position connected to the discharge pipe (the nozzle can be installed at a suitable position according to actual conditions), the two fixing parts 2 are spliced ​​and fixed to the outside of the clamping section 102, and then the head 301 of the wrench 3 is passed through the conical nozzle section 104 and the connecting section 103, and then sleeved on the outside of the fixing part 2 and clamped with the fixing part 2, and the wrench 3 is further rotated to realize the connection between the nozzle 1 and the discharge pipe; after hanging and tightening, the head 301 of the wrench 3 is separated from the fixing part 2, and then the two fixing parts 2 clamped in the clamping section 102 are removed.

[0050] When the nozzle 1 needs to be disassembled, the two fixing parts 2 are spliced ​​and fixed on the outer side of the clamping section 102, and then the head 301 of the wrench 3 is passed through the conical nozzle section 104 and the connecting section 103, and then sleeved on the outside of the fixing part 2 and clamped with the fixing part 2, and the wrench 3 is further rotated to separate the nozzle 1 from the discharge pipe; then the nozzle 1 can be removed.

[0051] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the explanation of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A nozzle assembly for an injection molding machine, characterized in that: It comprises a nozzle (1) and a nozzle disassembly part, The nozzle (1) comprises a tailstock section (101), a clamping section (102), a connecting section (103) and a conical nozzle section (104) which are hollow inside and connected in sequence; the outer diameter of the clamping section (102) is smaller than the outer diameter of the connecting section (103); The nozzle disassembly component comprises two fixing components (2) symmetrically arranged and spliced ​​and sleeved on the clamping section (102), and a wrench (3) matched with the fixing components (2); the inner diameter of the fixing component (2) is matched with the inner diameter of the clamping section (102), and the outer diameter of the fixing component (2) is larger than the outer diameter of the connecting section (103); When in use, the two fixing members (2) are spliced ​​and sleeved on the outer surface of the clamping section (102), and the head (301) of the wrench (3) is sleeved on the outer surface of the fixing member (2), so as to realize the connection or disassembly of the tailstock section (101) and the injection molding machine.

2. A nozzle assembly for an injection molding machine according to claim 1, characterized in that: The surface of the connecting section (103) has segmented grooves along its length direction.

3. A nozzle assembly for an injection molding machine according to claim 2, characterized in that: The segmented groove comprises a first groove (105) and a second groove (106) connected to each other, wherein the first groove (105) is arranged on a side of the connecting section (103) close to the clamping section (102), and the second groove (106) is arranged on a side of the connecting section (103) close to the conical nozzle section (104).

4. A nozzle assembly for an injection molding machine according to claim 3, characterized in that: The depth of the second groove (106) is greater than the depth of the first groove (105); A hole (107) is provided on one side of the second groove (106) close to the conical nozzle section (104).

5. The nozzle assembly for an injection molding machine according to claim 1, characterized in that: The clamping section (102) is a hexagonal clamping section.

6. A nozzle assembly for an injection molding machine according to claim 5, characterized in that: The length of the fixing member (2) is smaller than the length of the clamping section (102).

7. A nozzle assembly for an injection molding machine according to claim 6, characterized in that: The fixing member (2) comprises a first fixing section (201), a second fixing section (202), a third fixing section (203) and a fourth fixing section (204); One end of the second fixing section (202) is connected to the third fixing section (203), and the other end is connected to the first fixing section (201); the end of the third fixing section (203) away from the second fixing section (202) is connected to the fourth fixing section (204); The first fixing section (201) and the fourth fixing section (204) are parallel.

8. A nozzle assembly for an injection molding machine according to claim 7, characterized in that: The first fixing section (201) and the fourth fixing section (204) have the same length.

9. The nozzle assembly for an injection molding machine according to claim 7, characterized in that: The included angle between the first fixing section (201) and the second fixing section (202), the included angle between the second fixing section (202) and the third fixing section (203), and the included angle between the third fixing section (203) and the fourth fixing section (204) are all 120°.

10. The nozzle assembly for an injection molding machine according to claim 7, characterized in that: The spanner (3) is a box spanner (3); The box spanner (3) comprises a handle portion (302) and a wreath-shaped head (301), wherein the inner diameter of the head (301) is adapted to the outer diameter of the two spliced ​​fixing members (2).

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