Nozzle assembly for injection molding machine

Abstract

The utility model relates to the technical field of injection nozzles of injection molding machines, in particular to an injection nozzle assembly for an injection molding machine, which comprises an injection nozzle and an injection nozzle dismounting part, and the injection nozzle comprises a tailstock section, a clamping section, a connecting section and a conical injection 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 utility model provides the nozzle assembly for the injection molding machine, and a new thought is provided for mounting and dismounting the nozzle (the outer diameter of the clamping section is smaller than that of the connecting section).

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding machine nozzle technical field especially is injection molding machine nozzle assembly. BACKGROUND

[0002] Injection molding machine is a kind of precision mechanical equipment for producing various plastic products, it is cooled solidification after being injected into mould by heating and melting plastic material, to form the required plastic product.Injection molding machine nozzle is the key part of injection unit, it is responsible for the high efficiency, accurate injection of molten plastic material in mould;The design and material of nozzle have direct influence on the stability of injection molding process and the quality of product;Nozzle usually needs to bear high temperature and high pressure, so it is usually made of high-temperature-resistant, wear-resistant material to ensure long-term stable operation and prolong service life.

[0003] When existing nozzle is installed to the discharge pipe of injection molding machine, it is usually handled using circular tongs, but when the outer diameters of each section of nozzle are different, especially the outer diameter of clamping section is less than the outer diameter of connecting section;Circular tongs cannot be set on the outer surface of clamping section through connecting section, so the installation and disassembly of nozzle cannot be realized.

[0004] Therefore, it is essential to provide a nozzle assembly that can solve the above technical problems. UTILITY MODEL CONTENT

[0005] In order to solve the above problems, the purpose of the utility model is to provide a nozzle assembly for injection molding machine.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] The utility model provides a nozzle assembly for injection molding machine, which comprises a nozzle and a nozzle dismounting piece,

[0008] The nozzle comprises a tail seat section, a clamping section, a connecting section and a conical nozzle section connected in sequence and hollowed inside;The outer diameter of clamping section is less than that of connecting section;

[0009] The nozzle dismounting piece comprises two fixed pieces symmetrically arranged and spliced and set on the clamping section, and a wrench matched with the fixed piece;The inner diameter of fixed piece is matched with the inner diameter of clamping section, and the outer diameter of fixed piece is greater than that of connecting section;

[0010] When in use, the two fixed pieces are spliced and set on the outer surface of clamping section, and the head of wrench is set on the outer surface of fixed piece, to realize the connection or dismounting of tail seat section and injection molding machine.

[0011] In one embodiment of the utility model, the connecting section surface has segmented grooves along its length direction (optimizing the design of the nozzle, for controlling the pressure distribution at the nozzle, thereby optimizing the whole injection molding process).

[0012] In one embodiment of the utility model, the segmented grooves are arranged in more than one group along the circumference of the connecting section.

[0013] In one embodiment of the utility model, the segmented grooves comprise a connected first groove and a second groove, the first groove is arranged on one side of the connecting section close to the clamping section, and the second groove is arranged on one side of the connecting section close to the conical nozzle section.

[0014] In one embodiment of the utility model, the depth of the second groove is greater than the depth of the first groove; a hole is arranged 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 utility model, the clamping section is a hexagonal clamping section.

[0016] In one embodiment of the utility model, the length of the fixing member is less than the length of the clamping section.

[0017] In one embodiment of the utility model, the fixing member comprises a first fixing section, a second fixing section, a third fixing section and a fourth fixing section.

[0018] One end of the second fixing section is connected with the third fixing section, and the other end is connected with the first fixing section, and the end of the third fixing section away from the second fixing section is connected with the fourth fixing section.

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

[0020] In one embodiment of the utility model, the length of the first fixing section is the same as that of the fourth fixing section.

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

[0022] In one embodiment of the utility model, the wrench is a spanner wrench.

[0023] The spanner wrench comprises a handle part and a head part in the shape of a wreath, and the inner diameter of the head part is matched with the outer diameter of the two spliced fixing members.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The nozzle assembly for the injection molding machine provided by the utility model provides a new idea for installation and dismounting of the nozzle (the outer diameter of the clamping section is smaller than that of the connecting section), and the clamping connection with the clamping section is realized by the fixed part formed by splicing, and then the dismounting and installation of the nozzle are realized by the cooperation of the wrench and the fixed part. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 It is a structure schematic view of a nozzle assembly for an injection molding machine of the utility model;

[0027] Fig. 2 It is a structure schematic view of a nozzle in the nozzle assembly for the injection molding machine of the utility model;

[0028] Fig. 3 It is a sectional view of the nozzle in the nozzle assembly for the injection molding machine of the utility model;

[0029] Fig. 4 It is a splicing schematic view of two fixed parts in the nozzle assembly for the injection molding machine of the utility model;

[0030] Fig. 5 It is a sectional view of the fixed part in the nozzle assembly for the injection molding machine of the utility model;

[0031] Fig. 6 It is a structure schematic view of a wrench in the nozzle assembly for the injection molding machine of the utility model;

[0032] The reference signs in the drawing are as follows: 1, nozzle; 101, tail seat section; 102, clamping section; 103, connecting section; 104, conical nozzle section; 105, first groove; 106, second groove; 107, hole; 2, fixed part; 201, first fixed section; 202, second fixed section; 203, third fixed section; 204, fourth fixed section; 3, wrench; 301, head; 302, handle part. DETAILED DESCRIPTION

[0033] The utility model will be described in detail in combination with the drawing and specific embodiment.

[0034] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

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

[0036] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," "third," and "fourth" are used solely for descriptive purposes 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 Figs. 1-6 As shown, it includes a nozzle 1 and a nozzle removal part. The nozzle 1 includes a tailstock section 101, a clamping section 102, a connecting section 103 and a tapered nozzle section 104 which are hollow and connected in sequence (the tailstock section 101, the clamping section 102, the connecting section 103 and the tapered 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 removal part includes two symmetrically arranged fixing members 2 that are 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] During 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 connection or disassembly of the tailstock section 101 and the injection molding machine.

[0041] Further, the surface of the connecting section 103 has segmented grooves along the length direction thereof, wherein a plurality of groups of segmented grooves are arranged along the circumferential direction of the connecting section 103, each group of segmented grooves comprises a first groove 105 and a second groove 106, the first groove 105 is arranged on the side of the connecting section 103 close to the clamping section 102, and the second groove 106 is arranged on the side of the connecting section 103 close to the tapered nozzle section 104.

[0042] Further, the depth of the second groove 106 is greater than the depth of the first groove 105, and the second groove 106 is provided with a hole 107 on the side close to the tapered nozzle section 104.

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

[0044] Further, 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 (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, and 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 length of the first fixing section 201 is the same as the length of the fourth fixing section 204.

[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] Further, the wrench 3 is a spanner wrench 3, and the spanner wrench 3 comprises a handle part 302 and a head part 301 in the shape of a wreath, and the inner diameter of the head part 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 with the discharge pipe (the nozzle can be installed at a suitable position according to actual conditions), two fixing members 2 are spliced and fixed outside the clamping section 102, then the head 301 of the wrench 3 is passed through the conical nozzle section 104 and the connecting section 103, and then is sleeved outside the fixing member 2 and clamped with the fixing member 2, further rotation of the wrench 3 realizes connection of the nozzle 1 with the discharge pipe; after being hung up, the head 301 of the wrench 3 is separated from the fixing member 2, and then the two fixing members 2 clamped outside the clamping section 102 are removed.

[0050] When the nozzle 1 needs to be disassembled, two fixing members 2 are spliced and fixed outside the clamping section 102, then the head 301 of the wrench 3 is passed through the conical nozzle section 104 and the connecting section 103, and then is sleeved outside the fixing member 2 and clamped with the fixing member 2, further rotation of the wrench 3 realizes disconnection of the nozzle 1 with the discharge pipe; the nozzle 1 can be removed.

[0051] The above description of the embodiments is for facilitating the ordinary skilled in the art to understand and use the utility model. The person skilled in the art can obviously easily make various modifications to the embodiments, and apply the general principles explained herein to other embodiments without having to have creative labor. Therefore, the utility model is not limited to the above embodiments, and the improvements and modifications made by the person skilled in the art according to the explanation of the utility model without departing from the scope of the utility model should be within the protection scope of the utility model.

Claims

1. A nozzle assembly for an injection molding machine, characterized by, The injection nozzle (1) and the injection nozzle dismounting part, The injection nozzle (1) comprises a tail seat section (101), a clamping section (102), a connecting section (103) and a conical nozzle section (104) connected in sequence and hollowed inside; the outer diameter of the clamping section (102) is smaller than that of the connecting section (103); The injection nozzle dismounting part comprises two fixed parts (2) symmetrically arranged and spliced to the clamping section (102) and a wrench (3) matched with the fixed part (2); the inner diameter of the fixed part (2) is matched with the inner diameter of the clamping section (102), and the outer diameter of the fixed part (2) is larger than that of the connecting section (103); In use, the two fixed parts (2) are spliced to the outer surface of the clamping section (102), and the head (301) of the wrench (3) is spliced to the outer surface of the fixed part (2), so as to realize the connection or dismounting of the tail seat section (101) and the injection molding machine.

2. A nozzle assembly for an injection molding machine as defined in claim 1, wherein The connecting section (103) has a segmented groove on its surface along the length direction.

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

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

5. A nozzle assembly for an injection molding machine as defined in claim 1, wherein The clamping section (102) is a hexagonal clamping section.

6. A nozzle assembly for an injection molding machine as defined in claim 5, wherein The length of the fixed part (2) is less than that of the clamping section (102).

7. A nozzle assembly for an injection molding machine as defined in claim 6, wherein The fixed part (2) comprises a first fixed section (201), a second fixed section (202), a third fixed section (203) and a fourth fixed section (204). One end of the second fixed section (202) is connected with the third fixed section (203), and the other end is connected with the first fixed section (201), and the end of the third fixed section (203) away from the second fixed section (202) is connected with the fourth fixed section (204). The first fixed section (201) is parallel to the fourth fixed section (204).

8. A nozzle assembly for an injection molding machine as defined in claim 7, wherein The first fixed section (201) and the fourth fixed section (204) have the same length.

9. A nozzle assembly for an injection molding machine as defined in claim 7, wherein The included angle between the first fixed section (201) and the second fixed section (202), the included angle between the second fixed section (202) and the third fixed section (203), and the included angle between the third fixed section (203) and the fourth fixed section (204) are all 120°.

10. A nozzle assembly for an injection molding machine as defined in claim 7, wherein The wrench (3) is a spanner wrench (3); The spanner wrench (3) comprises a handle part (302) and a head part (301) in the shape of a wreath, and the inner diameter of the head part (301) is matched with the outer diameter of the two spliced fixed parts (2).

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