Router mold structure

Abstract

The utility model relates to the technical field of dies, in particular to a router die structure which comprises a runner plate, fastening assemblies are symmetrically and fixedly installed on the two sides of the runner plate, needle valve assemblies are movably arranged in the fastening assemblies, and each needle valve assembly comprises an air cylinder and a nozzle which are movably installed on the two sides of the runner plate in an embedded mode. A first valve needle is fixedly installed at one end of the air cylinder, a second valve needle is movably arranged in the nozzle, a connecting assembly is movably arranged at the joint of the first valve needle and the second valve needle and comprises a sleeve connected to the outer side of the second valve needle in a sliding mode, and a threaded ring is fixedly installed on the surface of the inner side of the sleeve. According to the utility model, the valve needle is divided into two parts which are connected through the connecting assembly, so that under the action of the connecting assembly, the valve needle at the end part is convenient to replace under the action of not disassembling the air cylinder, the replacement process is simplified, the air cylinder and the nozzle are convenient to disassemble and assemble, and the firmness when the air cylinder and the nozzle are connected is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a router mold structure. Background Art

[0002] Router shells are usually produced by mold injection molding. To ensure the injection molding quality of router shells, a needle valve hot runner system is required. Compared with traditional hot runner systems, the needle valve hot runner system has higher control accuracy and better product quality, which can effectively improve the injection molding quality of routers.

[0003] The valve needle of the existing needle valve hot runner system is usually integrally formed. After long-term use, its end is greatly worn and needs to be replaced. When replacing, the cylinder needs to be disassembled before the valve needle can be disassembled and replaced. The replacement process is relatively cumbersome. Utility Model Content

[0004] The purpose of the present utility model is to provide a router mold structure to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A router mold structure comprises a flow channel plate installed inside the mold, fastening assemblies are symmetrically fixedly installed on both sides of the flow channel plate, a needle valve assembly is movably provided inside the fastening assembly, the needle valve assembly comprises a cylinder and a nozzle movably embedded and installed on both sides of the flow channel plate, a No. 1 valve needle is fixedly installed at one end of the cylinder, a No. 2 valve needle is movably provided inside the nozzle, a connecting assembly is movably provided at the connection between the No. 1 valve needle and the No. 2 valve needle, the connecting assembly comprises a sleeve slidably connected to the outside of the No. 2 valve needle, a threaded ring is fixedly installed on the inner surface of the sleeve, and a No. 2 thread is fixedly provided at one end of the outer surface of the No. 1 valve needle.

[0007] Furthermore, the threaded ring is screwed together with the No. 2 thread, the inner surface of the sleeve and one end of the inner surface are fixedly mounted with a No. 2 retaining ring, and the outer surfaces of the No. 1 valve needle and the No. 2 valve needle are fixedly mounted with a No. 1 retaining ring.

[0008] Furthermore, a square rod is fixedly mounted on one end surface of the No. 1 valve needle, a square groove is formed on one end surface of the No. 2 valve needle, and the square rod is movably plugged into the square groove.

[0009] Furthermore, a receiving groove is symmetrically provided on the outer surface of the No. 2 valve needle, a push rod is movably embedded in the receiving groove, a spring is fixedly connected to the inner surface of one end of the receiving groove, and one end of the spring is fixedly connected to one end of the push rod.

[0010] Furthermore, the fastening assembly includes a plurality of conical pieces fixedly mounted at equal angles on the outer surface of the flow channel plate, and the outer surfaces of the plurality of conical pieces are fixedly provided with No. 1 threads.

[0011] Preferably, a fastening nut is provided on the outer movable sleeve of the plurality of conical pieces, the fastening nut is screwed together with the No. 1 thread, and a limiting ring is fixedly connected to the other end surface of the plurality of conical pieces.

[0012] Preferably: a plurality of positioning rods are fixedly installed at equal angles on the outer surfaces of the cylinder and the nozzle, positioning holes are opened on the inner surface of the conical piece, the positioning rods are movably engaged with adjacent positioning holes, and an extension tube is fixedly installed at one end of the cylinder and the nozzle, and the extension tube is movably plugged into the flow channel of the flow channel plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. Insert the square rod into the square groove, turn the sleeve to screw the thread ring into the No. 2 thread, and install the No. 2 valve needle. Conversely, turn the sleeve in the opposite direction to quickly remove the No. 2 valve needle. By dividing the valve needle into two parts, the No. 2 valve needle at the end can be easily replaced without dismantling the cylinder under the action of the connecting assembly, simplifying the replacement process.

[0015] 2. After the sleeve is screwed into place, the spring pushes the ejector pin out of the receiving groove, so that the ejector pin presses against the sleeve to prevent the sleeve from loosening, thereby improving the firmness of the sleeve and increasing the firmness of the connection between the No. 1 valve needle and the No. 2 valve needle.

[0016] 3. When installing the cylinder and nozzle, insert them into the inner side of the tapered piece at the corresponding position, insert the extension tube into the flow channel inside the flow channel plate, and make the positioning rod fit into the positioning hole at the corresponding position. Then screw on the fastening nut, clamp the cylinder and nozzle with the tapered piece, and fix the two. This makes it easier to disassemble and install the cylinder and nozzle, and increases the firmness of the connection between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure of the flow channel plate and the needle valve assembly of the utility model

[0019] Figure 3 This is a schematic diagram of the vertical cross-section structure of the hot runner plate of the utility model;

[0020] Figure 4 This is a schematic diagram of the split structure of the connecting component and the fastening component in the utility model;

[0021] Figure 5This is a schematic diagram of the vertical cross-section structure of the fastening component in the utility model;

[0022] Figure 6 It is a schematic diagram of the vertical cross-section structure of the connecting component in the utility model.

[0023] In the figure: 1. flow channel plate; 2. fastening assembly; 201. conical piece; 202. No. 1 thread; 203. fastening nut; 204. limiting ring; 205. positioning hole; 3. needle valve assembly; 301. cylinder; 302. nozzle; 303. positioning rod; 304. extension tube; 305. No. 1 valve needle; 306. No. 2 valve needle; 4. connecting assembly; 401. square groove; 402. square rod; 403. sleeve; 404. No. 1 back ring; 405. threaded ring; 406. No. 2 back ring; 407. storage groove; 408. push rod; 409. spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1 to 6 In an embodiment of the present invention, a router mold structure includes a flow channel plate 1 installed inside the mold, and fastening components 2 are symmetrically fixedly installed on both sides of the flow channel plate 1. A needle valve component 3 is movably provided inside the fastening component 2. The needle valve component 3 includes a cylinder 301 and a nozzle 302 movably embedded and installed on both sides of the flow channel plate 1. A No. 1 valve needle 305 is fixedly installed at one end of the cylinder 301, and a No. 2 valve needle 306 is movably provided inside the nozzle 302. A connecting component 4 is movably provided at the connection between the No. 1 valve needle 305 and the No. 2 valve needle 306. The connecting component 4 includes a sleeve 403 slidably connected to the outside of the No. 2 valve needle 306. A threaded ring 405 is fixedly installed on the inner surface of the sleeve 403, and a No. 2 thread is fixedly provided on one end of the outer surface of the No. 1 valve needle 305.

[0026] Specifically, the needle valve assembly 3 is fixed to the flow channel plate 1 through the fastening assembly 2. When disassembling, the second valve needle 306 can be quickly disassembled and installed through the connecting assembly 4, so as to facilitate its replacement.

[0027] Example 1

[0028] like Figure 5As shown, in this embodiment, the threaded ring 405 is screwed together with the No. 2 thread, and the No. 2 retaining ring 406 is fixedly installed on the inner surface and one end of the inner surface of the sleeve 403, and the No. 1 retaining ring 404 is fixedly installed on the outer surfaces of the No. 1 valve needle 305 and the No. 2 valve needle 306; a square rod 402 is fixedly installed on the surface of one end of the No. 1 valve needle 305, and a square groove 401 is opened on the surface of one end of the No. 2 valve needle 306, and the square rod 402 is movably plugged into the square groove 401.

[0029] In this embodiment, when installing the No. 2 valve needle 306, the square rod 402 is inserted into the square groove 401, and the sleeve 403 is turned to screw the threaded ring 405 into the No. 2 thread. When the corresponding No. 1 retaining ring 404 is in contact with the No. 2 retaining ring 406, the threaded ring 405 and the No. 2 thread are screwed together and tightened. Conversely, the sleeve 403 is turned in the opposite direction to quickly disassemble the No. 2 valve needle 306. By dividing the valve needle into two parts and connecting them through the connecting component 4, under the action of the connecting component 4, the No. 2 valve needle 306 at the end can be easily replaced without disassembling the cylinder 301, thereby simplifying the replacement process.

[0030] like Figure 5 As shown, in this embodiment, a receiving groove 407 is symmetrically provided on the outer surface of the No. 2 valve needle 306, and a push rod 408 is movably embedded in the receiving groove 407. A spring 409 is fixedly connected to the surface of one end of the inner part of the receiving groove 407, and one end of the spring 409 is fixedly connected to one end of the push rod 408.

[0031] In specific implementation, after the sleeve 403 is screwed into place, the spring 409 pushes the push rod 408 to pop out of the receiving groove 407, so that the push rod 408 presses against the sleeve 403 to prevent the sleeve 403 from loosening, thereby improving the firmness of the sleeve 403 and increasing the connection firmness of the No. 1 valve needle 305 and the No. 2 valve needle 306.

[0032] Example 2

[0033] On the basis of the first embodiment, in order to make up for the problem that the needle valve assembly 3 is difficult to disassemble.

[0034] like Figure 3-4As shown, in this embodiment, the fastening assembly 2 includes a plurality of conical pieces 201 fixedly mounted at equal angles on the outer surface of the flow channel plate 1, and a number one thread 202 is fixedly provided on the outer surface of the plurality of conical pieces 201; a fastening nut 203 is movably sleeved on the outer side of the plurality of conical pieces 201, and the fastening nut 203 is screwed together with the number one thread 202, and a limiting ring 204 is fixedly connected to the other end surface of the plurality of conical pieces 201; a plurality of positioning rods 303 are fixedly mounted at equal angles on the outer surfaces of the cylinder 301 and the nozzle 302, and a positioning hole 205 is provided on the inner surface of the conical piece 201, and the positioning rod 303 is movably engaged with the adjacent positioning hole 205, and an extension tube 304 is fixedly mounted on one end of each of the cylinder 301 and the nozzle 302, and the extension tube 304 is movably plugged into the flow channel of the flow channel plate 1.

[0035] During specific implementation, when installing the cylinder 301 and the nozzle 302, the two are inserted into the inner side of the conical piece 201 at the corresponding position, the extension tube 304 is inserted into the flow channel inside the flow channel plate 1, and the positioning rod 303 is stuck into the positioning hole 205 at the corresponding position, and then the fastening nut 203 is screwed on, so that the fastening nut 203 is screwed on the No. 1 thread 202, and the conical piece 201 is clamped around the cylinder 301 and the nozzle 302 to fix the two, thereby facilitating the disassembly and installation of the cylinder 301 and the nozzle 302, and increasing the firmness of the connection between the two.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A router mold structure, comprising a runner plate (1) installed inside the mold, characterized in that: The flow channel plate (1) is symmetrically fixedly provided with a fastening assembly (2) on both sides, and a needle valve assembly (3) is movably provided inside the fastening assembly (2). The needle valve assembly (3) comprises a cylinder (301) and a nozzle (302) movably embedded and installed on both sides of the flow channel plate (1). A valve needle No. 1 (305) is fixedly provided at one end of the cylinder (301), and a valve needle No. 2 (306) is movably provided inside the nozzle (302). A connecting assembly (4) is movably provided at the connection between the valve needle No. 1 (305) and the valve needle No. 2 (306). The connecting assembly (4) comprises a sleeve (403) slidably connected to the outside of the valve needle No. 2 (306), a threaded ring (405) is fixedly provided on the inner surface of the sleeve (403), and a No. 2 thread is fixedly provided at one end of the outer surface of the valve needle No. 1 (305).

2. A router mold structure according to claim 1, characterized in that: The threaded ring (405) is screwed together with the No. 2 thread, and the inner surface and one end of the inner surface of the sleeve (403) are fixedly mounted with a No. 2 retaining ring (406), and the outer surfaces of the No. 1 valve needle (305) and the No. 2 valve needle (306) are fixedly mounted with a No. 1 retaining ring (404).

3. A router mold structure according to claim 1, characterized in that: A square rod (402) is fixedly mounted on one end surface of the No. 1 valve needle (305), a square groove (401) is opened on one end surface of the No. 2 valve needle (306), and the square rod (402) is movably plugged into the square groove (401).

4. A router mold structure according to claim 1, characterized in that: The outer surface of the second valve needle (306) is symmetrically provided with a receiving groove (407), and a push rod (408) is movably embedded in the inside of the receiving groove (407). A spring (409) is fixedly connected to the surface of one end of the inside of the receiving groove (407), and one end of the spring (409) is fixedly connected to one end of the push rod (408).

5. A router mold structure according to claim 1, characterized in that: The fastening assembly (2) comprises a plurality of conical pieces (201) fixedly mounted at equal angles on the outer surface of the flow channel plate (1), and a number one thread (202) is fixedly provided on the outer surfaces of the plurality of conical pieces (201).

6. A router mold structure according to claim 5, characterized in that: A fastening nut (203) is provided on the outer side of the plurality of conical pieces (201), and the fastening nut (203) is screwed together with the No. 1 thread (202). The other end surfaces of the plurality of conical pieces (201) are fixedly connected with a limiting ring (204).

7. A router mold structure according to claim 5, characterized in that: A plurality of positioning rods (303) are fixedly mounted at equal angles on the outer surfaces of the cylinder (301) and the nozzle (302); positioning holes (205) are provided on the inner surface of the conical piece (201); the positioning rods (303) are movably engaged with adjacent positioning holes (205); an extension tube (304) is fixedly mounted on one end of each of the cylinder (301) and the nozzle (302); and the extension tube (304) is movably plugged into the flow channel of the flow channel plate (1).

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