Injection mold sprue guide

Abstract

The utility model discloses a kind of injection mould gate flow guide parts, including gate sleeve, fixed component for being used to and injection mould fastening installation is installed in gate sleeve outer wall, the positioning component for being used to the positioning fixed of nozzle is installed in gate sleeve top wall, the utility model relates to injection mould technical field;The injection mould gate flow guide part, through the cooperation of fixed component and positioning component, after being installed to the reserved position of injection mould by gate sleeve in priority, the position of gate sleeve is determined in sequence by completing through positioning mechanism, then after nozzle is driven into positioning mechanism by placing mechanism and the position of gate sleeve is determined, the flow channel communication state of gate sleeve and nozzle is completed, after pre-positioning and butt joint communication, it can prevent the situation of flow channel butt joint deviation misplacement, and it has good progress effect to stable feeding and prevent the situation of liquid plastic leakage.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold gate guide component. Background Technology

[0002] In the injection mold system, the gate guide is a key transition component connecting the injection molding machine nozzle and the mold cavity. Its core function is to smoothly and evenly guide the molten plastic (melt) from the main runner to the branch runner and cavity, while controlling the melt flow rate, pressure loss and temperature maintenance. It is the "first checkpoint" to ensure the quality of the molded plastic parts.

[0003] The aforementioned technologies have certain shortcomings in their application: When using injection molds, the sprue bushing is generally installed inside the injection mold's inlet, with the inlet end of the sprue bushing connected to the nozzle end of the injection equipment to achieve flow channel connection. However, due to the lack of a positioning device on the periphery during installation, some deviations and misalignments occur, leading to material leakage when liquid plastic flows through this location.

[0004] To address these issues, this invention provides a gate guide for injection molds. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a gate guide for injection molds, which solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a gate guide for injection molds, including a gate sleeve, a fixing component for fastening the gate sleeve to the injection mold is installed on the outer wall of the gate sleeve, a positioning component for positioning and fixing the nozzle is installed on the top wall of the gate sleeve, and a connecting component for docking and communicating with the injection molding equipment is installed on the top of the outer wall of the nozzle. The top wall of the sprue bushing is provided with an inlet spherical surface, and the bottom end of the nozzle is fitted and matched with the inlet spherical surface; The positioning components include a positioning mechanism and a placement mechanism; The positioning mechanism includes a positioning ring that fits against the top wall of the sprue bushing. Several positioning pins are installed on the bottom wall of the positioning ring in a circumferential arrangement. Positioning openings are provided on the top wall of the sprue bushing at the positions corresponding to the positioning pins. The inner walls of the positioning openings fit against the outer walls of the corresponding positioning pins. The placement mechanism includes an expansion frame fixedly installed on the top wall of the positioning ring. The inner wall of the expansion frame is evenly provided with several slots in a circumferential direction. Each slot has a slot seat installed in a slot. Each slot seat has a fixed expansion seat that is compatible with the inner wall of the expansion frame. The inner wall of the expansion seat is fixed to the outer wall of the nozzle.

[0007] The positioning component is mainly used to assist in the stable connection between the nozzle and the sprue sleeve. The positioning mechanism achieves the positioning in advance, and then the expansion seat drives the nozzle and the sprue sleeve to complete the installation and connection.

[0008] Furthermore, mounting ears are fixedly installed on both sides of the outer wall of the expansion frame, and fasteners are screwed onto the inner wall of each mounting ear.

[0009] The above technical solution uses mounting ears and fasteners primarily for mounting the expansion bracket to the reserved position on the injection mold.

[0010] Furthermore, the fixing component includes several circumferentially formed fastening grooves on the top wall of the sprue bushing, and fastening bolts adapted to the injection mold are installed on the inner wall of each fastening groove.

[0011] The above technical solution, with its fastening groove and fastening bolts, is mainly used to install the sprue bushing in the installation position reserved for the sprue bushing in the injection mold.

[0012] Furthermore, the connecting assembly includes a support ring fixedly mounted on the outer wall of the nozzle, a sealing sleeve rotatably mounted on the top of the support ring at a position corresponding to the outer wall of the nozzle, and a hexagonal seat fixedly mounted on the outer wall of the sealing sleeve.

[0013] The support ring, as described above, is mainly used to support and limit the bottom position of the sealing sleeve and the hexagonal seat.

[0014] Furthermore, a sealing ring is installed on the inner wall of the sealing sleeve corresponding to the top of the nozzle, and a threaded groove is opened on the inner wall of the sealing sleeve.

[0015] By using the above technical solution, a sealing ring is installed inside the sealing sleeve, which can improve the sealing performance of the connection with the connecting pipeline.

[0016] Furthermore, the inner wall of the sealing sleeve is provided with a connecting pipe, which is connected to the discharge end of the injection molding equipment, and the bottom end of the connecting pipe abuts against the top wall of the sealing ring for sealing.

[0017] Through the above technical solution, external injection molding equipment can be connected to the connecting pipeline to transport liquid injection molding raw materials.

[0018] Furthermore, a matching threaded groove two is provided on the outer wall of the connecting pipe at the position corresponding to threaded groove one. Threaded groove two is threadedly connected to threaded groove one. An abutment ring is installed on the outer wall of the connecting pipe at the position corresponding to the top wall of the sealing sleeve. The bottom wall of the abutment ring abuts and limits the movement to the top wall of the sealing sleeve.

[0019] With the above technical solution, after the connecting pipe is threadedly connected to threaded groove one through threaded groove two, it is fixed by abutting ring and sealing sleeve, thus completing the installation and connection. Beneficial effects

[0020] This utility model provides a gate guide for injection molds. Compared with the prior art, it has the following advantages: 1. This injection mold gate guide component, through the cooperation of the fixing component and the positioning component, first installs the gate sleeve into the reserved position of the injection mold, and then the positioning mechanism completes the alignment and determination of the gate sleeve. Then, the placement mechanism drives the nozzle into the positioning mechanism and aligns and determines the position of the gate sleeve, so that the gate sleeve and the nozzle are in a flow channel connection state. After the pre-positioning and alignment and connection, the flow channel misalignment can be prevented, and it has a good improvement effect on stabilizing material feeding and preventing liquid plastic leakage.

[0021] 2. This injection mold gate guide component, through the setting of the connecting components, is mainly used to securely connect with external injection molding equipment, so that the injection molding equipment can achieve continuous feeding and has a good connection and sealing effect during docking installation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the external structure of this utility model; Figure 2 This is an exploded view of the internal structure of this utility model; Figure 3 This is a front sectional view of the internal structure of this utility model; Figure 4 This is an exploded view of the internal structure of the positioning component of this utility model; Figure 5 This is an exploded view of the internal structure of the connecting component of this utility model; Figure 6 This is a cross-sectional view of the internal structure of the nozzle of this utility model.

[0023] In the diagram: 1. Sprue sleeve; 2. Fixing assembly; 21. Fastening groove; 22. Fastening bolt; 3. Positioning assembly; 31. Positioning mechanism; 311. Positioning ring; 312. Positioning pin; 313. Positioning port; 32. Placement mechanism; 321. Expansion bracket; 322. Slot; 323. Assembly ear; 324. Fastener; 325. Expansion seat; 326. Slot; 4. Nozzle; 5. Connecting assembly; 51. Support ring; 52. Sealing sleeve; 53. Hexagonal seat; 54. Threaded groove one; 55. Sealing ring; 56. Abutment ring; 57. Connecting pipeline; 58. Threaded groove two; 6. Inlet spherical surface. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0025] Please see Figures 1-6 A gate guide for an injection mold includes a gate sleeve 1, a fixing component 2 for fastening the gate sleeve 1 to the injection mold, a positioning component 3 for positioning and fixing a nozzle 4 on the top wall of the gate sleeve 1, and a connecting component 5 for docking and communicating with the injection molding equipment on the top of the outer wall of the nozzle 4. The top wall of the sprue sleeve 1 is provided with an inlet spherical surface 6, and the bottom end of the nozzle 4 is fitted and matched with the inlet spherical surface 6; Positioning component 3 includes a positioning mechanism 31 and a placement mechanism 32; The positioning mechanism 31 includes a positioning ring 311 that fits against the top wall of the sprue sleeve 1. Several positioning pins 312 are installed on the bottom wall of the positioning ring 311 in a circumferential arrangement. A positioning opening 313 is opened on the top wall of the sprue sleeve 1 at the position corresponding to the positioning pins 312. The inner wall of the positioning opening 313 fits against the outer wall of the corresponding positioning pin 312. The placement mechanism 32 includes an expansion frame 321 fixedly installed on the top wall of the positioning ring 311. The inner wall of the expansion frame 321 is evenly provided with several slots 322 in a circumferential direction. Each slot 322 has a slot seat 326 fixedly installed on its inner wall. Each slot seat 326 has a single expansion seat 325 that is adapted to the inner wall of the expansion frame 321. The inner wall of the expansion seat 325 is fixed to the outer wall of the nozzle 4. Both sides of the outer wall of the expansion frame 321 are fixedly installed with mounting ears 323. Fasteners 324 are screwed onto the inner wall of the mounting ears 323. In this embodiment of the utility model, the purpose of this arrangement is to achieve communication and adaptation between the bottom end of the nozzle 4 and the inlet spherical surface 6 at the top of the sprue sleeve 1, thereby keeping the internal flow channel unobstructed. At the same time, the positioning mechanism 31 and the placement mechanism 32 are pre-installed and positioned with the sprue sleeve 1, mainly to limit the installation position of the nozzle 4, prevent the flow channel misalignment deviation during docking, and improve the stability and smoothness of docking. Example

[0026] Please see Figures 1-6 This embodiment provides a technical solution based on embodiment one: the fixing component 2 includes a plurality of fastening grooves 21 circumferentially opened on the top wall of the sprue sleeve 1, and fastening bolts 22 adapted to the injection mold are installed on the inner wall of each fastening groove 21. The connecting component 5 includes a support ring 51 fixedly installed on the outer wall of the nozzle 4. A sealing sleeve 52 is rotatably installed on the top of the support ring 51 at a position corresponding to the outer wall of the nozzle 4. A hexagonal seat 53 is fixedly installed on the outer wall of the sealing sleeve 52. A sealing ring 55 is installed on the inner wall of the sealing sleeve 52 at a position corresponding to the top of the nozzle 4. A threaded groove 54 is opened on the inner wall of the sealing sleeve 52. A connecting pipe 57 is provided on the inner wall of the sealing sleeve 52. The connecting pipe 57 is connected to the discharge end of the injection molding equipment. The bottom end of the connecting pipe 57 abuts and seals with the top wall of the sealing ring 55. A matching threaded groove 58 is opened on the outer wall of the connecting pipe 57 at a position corresponding to the first threaded groove 54. The second threaded groove 58 is threadedly connected to the first threaded groove 54. An abutting ring 56 is installed on the outer wall of the connecting pipe 57 at a position corresponding to the top wall of the sealing sleeve 52. The bottom wall of the abutting ring 56 abuts and limits the movement with the top wall of the sealing sleeve 52. In this embodiment of the utility model, the purpose of this arrangement is that the connecting component 5 is mainly to enable the nozzle 4 to connect and dock with the external injection molding equipment, and to receive liquid injection molding raw materials. The threaded groove 54 on the inner wall of the sealing sleeve 52 and the threaded groove 58 on the connecting pipe 57 are threadedly fastened, while the connecting pipe 57 and the sealing ring 55 are abutted and fixed, thereby achieving a good fastening and sealing effect.

[0027] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0028] The working principle of this device is as follows: First, the movable sprue sleeve 1 is installed into the injection mold. The fastening bolt 22 is passed through the fastening groove 21 and fastened to the screw hole reserved in the injection mold. The sprue sleeve 1 is installed and fixed first. Next, the movable expansion frame 321 drives the assembly ear 323, the positioning ring 311, and the positioning pin 312 to move downwards. The positioning ring 311 drives the positioning pin 312 to insert into the positioning port 313 to form an installation positioning. The fastener 324 is screwed into the screw hole reserved in the injection mold for fastening, thus completing the installation and fixing of the expansion frame 321. Next, the moving nozzle 4 drives the expansion seat 325 into the expansion frame 321, and the retainer 326 engages with the slot 322. The bottom of the nozzle 4 passes through the expansion frame 321 and the positioning ring 311 and then docks with the top inlet spherical surface 6 of the sprue sleeve 1, so that the sprue sleeve 1 and the nozzle 4 keep the flow channel unobstructed. Next, the movable connecting pipe 57 drives the abutment ring 56 to dock with the sealing sleeve 52. By rotating the hexagonal seat 53, the sealing sleeve 52 and the sealing ring 55 are rotated, so that the first threaded groove 54 gradually completes the screw connection and fastening with the second threaded groove 58 on the connecting pipe 57. The abutment ring 56 and the top of the sealing sleeve 52 are abutted and fixed. The bottom end of the connecting pipe 57 abuts and limits the bottom wall of the sealing ring 55. The connecting pipe 57, the nozzle 4 and the gate sleeve 1 are in the state of connecting the flow channel. The raw materials for injection molding can be transported into the injection mold through the external injection molding equipment via the connecting pipe 57, nozzle 4 and sprue sleeve 1.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gate guide for an injection mold, characterized in that: Includes a sprue sleeve (1), the outer wall of which is fitted with a fixing component (2) for fastening with the injection mold, the top wall of which is fitted with a positioning component (3) for positioning and fixing the nozzle (4), and the top of the outer wall of the nozzle (4) is fitted with a connecting component (5) for docking and communicating with the injection equipment. The top wall of the sprue sleeve (1) is provided with an inlet spherical surface (6), and the bottom end of the nozzle (4) is fitted and adapted to the inlet spherical surface (6); The positioning component (3) includes a positioning mechanism (31) and a placement mechanism (32). The positioning mechanism (31) includes a positioning ring (311) that fits against the top wall of the sprue sleeve (1). The bottom wall of the positioning ring (311) is circumferentially arranged with a plurality of positioning pins (312). The top wall of the sprue sleeve (1) is provided with a positioning port (313) at the position corresponding to the positioning pin (312). The inner wall of the positioning port (313) fits against the outer wall of the corresponding positioning pin (312). The placement mechanism (32) includes an expansion frame (321) fixedly installed on the top wall of the positioning ring (311). The inner wall of the expansion frame (321) is evenly provided with several slots (322) in the circumferential direction. Each slot (322) has a slot seat (326) installed in the inner wall. Each slot seat (326) is fixedly installed with the same expansion seat (325) that is adapted to the inner wall of the expansion frame (321). The inner wall of the expansion seat (325) is fixed to the outer wall of the nozzle (4).

2. The injection mold gate guide component according to claim 1, characterized in that: The expansion frame (321) has mounting ears (323) fixedly installed on both sides of its outer wall, and fasteners (324) are screwed onto the inner wall of each mounting ear (323).

3. The injection mold gate guide component according to claim 1, characterized in that: The fixing component (2) includes several fastening grooves (21) circumferentially opened on the top wall of the sprue sleeve (1), and the inner wall of each fastening groove (21) is equipped with fastening bolts (22) that are compatible with the injection mold.

4. The injection mold gate guide component according to claim 1, characterized in that: The connecting assembly (5) includes a support ring (51) on which the outer wall of the nozzle (4) is fixedly installed. A sealing sleeve (52) is rotatably installed on the top of the support ring (51) at a position corresponding to the outer wall of the nozzle (4). A hexagonal seat (53) is fixedly installed on the outer wall of the sealing sleeve (52).

5. The injection mold gate guide component according to claim 4, characterized in that: A sealing ring (55) is installed on the inner wall of the sealing sleeve (52) and at the top of the nozzle (4). A threaded groove (54) is provided on the inner wall of the sealing sleeve (52).

6. The injection mold gate guide according to claim 4, characterized in that: The inner wall of the sealing sleeve (52) is provided with a connecting pipe (57), which is connected to the discharge end of the injection molding equipment. The bottom end of the connecting pipe (57) abuts against the top wall of the sealing ring (55) for sealing.

7. The injection mold gate guide according to claim 6, characterized in that: The outer wall of the connecting pipe (57) is provided with a matching threaded groove two (58) at the position corresponding to the threaded groove one (54). The threaded groove two (58) is threadedly connected to the threaded groove one (54). An abutment ring (56) is installed on the outer wall of the connecting pipe (57) at the position corresponding to the top wall of the sealing sleeve (52). The bottom wall of the abutment ring (56) abuts and limits the top wall of the sealing sleeve (52).

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