Novel throat pipe joint of injection molding machine

Abstract

The utility model relates to the technical field of throat pipe joints, in particular to a novel injection molding machine throat pipe joint which comprises a first joint and a second joint, a plurality of mounting grooves are formed in one end of the first joint, a plurality of mounting blocks are mounted at one end of the second joint, the mounting blocks are inserted into the mounting grooves, and limiting holes are formed in the surfaces of the mounting blocks. A sleeve is installed on the outer surface of the first connector, a plug pin is installed in the sleeve and movably inserted into the limiting hole, the outer surface of the plug pin is sleeved with a first spring, and the first connector and the second connector are movably sleeved with a sealing protective cover. According to the utility model, the joint is divided into two parts, so that the connection of the pipeline is more convenient and quicker, time and labor are saved, and when the throat pipe joint or the pipeline is blocked, the inside of the pipeline or the joint can be cleaned only by quickly splitting the first joint and the second joint without replacing the whole throat pipe or the joint, so that the cleaning efficiency is improved. And the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to a novel throat pipe joint for an injection molding machine, in particular to a novel throat pipe joint for an injection molding machine, and belongs to the technical field of throat pipe joints. Background Art

[0002] The throat joint of the injection molding machine is an important part of the injection molding machine. It is used to connect the injection nozzle of the injection molding machine and the feed port of the mold to ensure that the plastic melt flows smoothly into the mold. It is mainly used to ensure that the plastic melt can flow smoothly and accurately from the injection molding machine nozzle to the mold feed port. It is an important link in realizing the injection molding process. The throat joint of the injection molding machine is an indispensable part of injection molding production. Its performance and quality have an important impact on the efficiency and product quality of injection molding production. Selecting a suitable throat joint and performing regular maintenance and inspection are the key to ensuring the smooth progress of injection molding production. The existing throat joint of the injection molding machine is designed as an integrated structure. This design is usually to simplify the installation and disassembly process, or to meet the needs of specific application scenarios. This integrated throat joint integrates the nozzle interface and the mold feed port interface together and connects them through an integral structure. However, when the throat of the injection molding machine is blocked after long-term use, it is inconvenient to disassemble the pipe and the joint, and the pipe and its joints cannot be cleaned. If it cannot be cleaned, the entire throat needs to be replaced, which increases the maintenance cost.

[0003] Therefore, it is urgent to improve a novel injection molding machine throat pipe joint to solve the above-mentioned problems. Utility Model Content

[0004] The utility model aims to provide a novel throat pipe joint for injection molding machine, which is divided into two parts, and the mounting groove on the first joint and the mounting block on the second joint cooperate with each other for installation and disassembly, and the latch in the sleeve can quickly fix the first joint and the second joint, so that the connection of the pipeline is more convenient and quick, saving time and manpower. When the throat pipe joint or the pipeline is blocked, it only needs to quickly separate the first joint and the second joint to clean the inside of the pipeline or the joint without replacing the entire throat pipe or the joint, thereby reducing the maintenance cost.

[0005] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0006] It includes a first joint and a second joint, wherein a plurality of mounting grooves are provided inside one end of the first joint, and a plurality of mounting blocks are installed at one end of the second joint, wherein the mounting blocks are inserted into the interior of the mounting grooves, and limiting holes are provided on the surfaces of the mounting blocks, and a sleeve is installed on the outer surface of the first joint, and a latch is installed inside the sleeve, and the latch is movably inserted into the interior of the limiting hole, and a first spring is sleeved on the outer surface of the latch, and a sealing protective cover is movably sleeved on the first joint and the second joint.

[0007] Preferably, the diameter of the lower end of the latch is larger than the diameter of the upper end, the first spring is sleeved on the outer surface of the upper end of the latch, the first spring is fixedly installed inside the sleeve, and the first spring is a compression spring structure.

[0008] Preferably, a stop block is provided on the top of the first spring, and the stop block is installed on the upper end of the sleeve.

[0009] Preferably, a plurality of slide grooves are provided on the upper surface of the second joint, a plurality of sliders slidably connected to the slide grooves are installed at the bottom of the sealing protective cover, and the sealing protective cover is slidably installed on the surface of the connection between the second joint and the first joint through the sliders and the slide grooves.

[0010] Preferably, a push rod is movably inserted into the slide groove, one end of the push rod is fixedly connected to the slider, the other end of the push rod passes through the outside of the second joint and is connected to a ring, and a second spring is sleeved on the surface of the push rod.

[0011] Preferably, the second spring is a compression spring structure, a sealing rubber pad is provided on the inner wall of the sealing protective cover, and a plurality of pull rings are installed on the outer side of the circular ring.

[0012] Preferably, a handle is installed at one end of the latch.

[0013] Preferably, the inner walls of the first joint and the second joint are both provided with a rubber sealing layer, and an inner pipe is inserted into the rubber sealing layer.

[0014] The utility model has at least the following beneficial effects:

[0015] 1. Compared with the traditional injection molding machine throat joint, the joint is divided into two parts. The installation groove on the first joint and the installation block on the second joint cooperate with each other for installation and disassembly. The pin in the sleeve can quickly fix the first joint and the second joint, making the connection of the pipeline more convenient and quick, saving time and manpower. When the throat joint or pipeline is blocked, you only need to quickly separate the first joint and the second joint to clean the inside of the pipeline or the joint without replacing the entire throat or joint, reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the second joint of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the first joint of the utility model;

[0020] Figure 4 This is a half planing diagram of the first joint of the utility model;

[0021] Figure 5 For the utility model Figure 4 A is an enlarged schematic diagram.

[0022] In the figure, 1, first joint; 2, second joint; 3, mounting block; 4, mounting groove; 5, sleeve; 6, latch; 7, first spring; 8, handle; 9, rubber sealing layer; 10, inner pipe; 14, stop block; 15, sealing protective cover; 16, slide groove; 17, limit hole; 18, push rod; 19, ring 22, pull ring; 23, second spring; 24, slider. DETAILED DESCRIPTION

[0023] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0024] like Figure 1-Figure 5 As shown, a novel throat joint for an injection molding machine provided in this embodiment includes a first joint 1 and a second joint 2. A plurality of slide grooves 16 are provided on the upper surface of the second joint 2. A plurality of sliders 24 slidably connected to the slide grooves 16 are installed at the bottom of the sealing protective cover 15. The sealing protective cover 15 is slidably installed on the surface of the connection between the second joint 2 and the first joint 1 through the sliders 24 and the slide grooves 16. A push rod 18 is movably inserted into the inside of the slide groove 16. One end of the push rod 18 is fixedly connected to the slider 24. The other end of the push rod 18 passes through the outside of the second joint 2 and is connected to a ring 19. A second spring 23 is sleeved on the surface of the push rod 18. The second spring 23 is a compression spring structure. A sealing rubber pad is provided on the inner wall of the sealing protective cover 15. A plurality of pull rings 22 are installed on the outer side of the ring 19.

[0025] In this embodiment, the sealing protective cover 15 can prevent dirt, dust or other contaminants from entering the surface of the connection between the first joint 1 and the second joint 2 after long-term use, which may cause damage or reduce its efficiency. When the throat joint of the injection molding machine is blocked due to long-term use and needs to be repaired, the pull rings 22 on both sides are first pulled outward, and the pull rings 22 drive the circular ring 19, and the circular ring 19 drives each push rod 18. The push rod 18 drives the sealing protective cover 15 to squeeze the second spring 23 downward. The elasticity of the second spring 23 is used to move the sealing protective cover 15 downward and no longer sleeved between the first joint 1 and the second joint 2, which is convenient for subsequent disassembly and installation. After replacement and maintenance, the pull rings 22 on both sides can be loosened, and the push rod 18 uses the resilience of the second spring 23 to push the sealing protective cover 15 back to between the first joint 1 and the second joint 2 to protect it again.

[0026] like Figure 1-Figure 5 As shown, a plurality of mounting grooves 4 are provided inside one end of the first joint 1, a mounting block 3 is installed at one end of the second joint 2, the mounting block 3 is inserted into the interior of the mounting groove 4, and a limiting hole 17 is provided on the surface of the mounting block 3, a sleeve 5 is installed on the outer surface of the first joint 1, a latch 6 is installed inside the sleeve 5, the latch 6 is movably inserted into the interior of the limiting hole 17, a first spring 7 is sleeved on the outer surface of the latch 6, the diameter of the lower end of the latch 6 is greater than the diameter of the upper end, the first spring 7 is sleeved on the outer surface of the upper end of the latch 6, the first spring 7 is installed inside the sleeve 5, the first spring 7 is a compression spring structure, a stop block 14 is provided on the top of the first spring 7, the stop block 14 is fixed on the upper end of the sleeve 5, a handle 8 is installed at one end of the latch 6, the inner walls of the first joint 1 and the second joint 2 are provided with a rubber sealing layer 9, an internal pipe 10 is inserted inside the rubber sealing layer 9, and a sealing protective cover 15 is movably sleeved on the first joint 1 and the second joint 2.

[0027] In this embodiment, when the throat joint of the injection molding machine is worn or blocked after long-term use and needs to be replaced and repaired, the handle 8 is pulled outward to drive the latch 6 to move outward. Since the diameter of the lower end of the latch 6 is larger than the diameter of the upper end, the lower end of the latch 6 drives the first spring 7 on the outer surface to abut against the abutment block 14 outward, so that the latch 6 moves outward and disengages from the inside of the limiting hole 17, so that it no longer limits and fixes the mounting block 3, the second joint 2 is pulled out, and then the inner pipe 10 is pulled out, which can be repaired or replaced. After replacement and repair, the inner pipe 10 is first installed in the inside of the first joint 1 and the second joint 2, and the handle 8 is pulled outward to drive the latch 6 to move outward. Since the diameter of the lower end of the latch 6 is larger than the diameter of the upper end, the first spring 7 on the outer surface is driven by the lower end of the latch 6 to abut against the abutment block 14 outward, so that the latch 6 moves outward and disengages from the inside of the limiting hole 17, so that it no longer limits and fixes the mounting block 3. The diameter of the end makes the lower end of the pin 6 drive the first spring 7 on the outer surface to abut against the block 14 outward, and the elasticity of the first spring 7 is used to make the pin 6 move outward and shrink to the inside of the sleeve 5, and at the same time, it is quickly inserted and installed into the inside of the mounting groove 4 of the first joint 1 through the mounting block 3 on the second joint 2, and the handle 8 is released. The pin 6 rebounds to the inside of the limiting hole 17 by using the resilience of the first spring 7, and the second joint 2 is limited and fixed to prevent it from detaching. Therefore, when the throat pipe joint is worn or blocked, only the corresponding parts need to be replaced instead of the entire throat pipe joint, which reduces the maintenance cost. At the same time, the rubber sealing layer 9 can improve the sealing performance of the throat pipe joint of the injection molding machine during use.

[0028] like Figure 1-Figure 5 , as shown, the principle of a novel injection molding machine throat joint provided by this embodiment is as follows: when repairing or replacing, pull the handle 8 outward to drive the latch 6 to move outward. Since the diameter of the lower end of the latch 6 is larger than the diameter of the upper end, the lower end of the latch 6 drives the first spring 7 on the outer surface to abut against the block 14 outward, so that the latch 6 moves outward and escapes from the inside of the limiting hole 17, so that it no longer limits and fixes the mounting block 3, and then the second joint 2 is pulled out, and then the inner pipe 10 is pulled out. After replacement and repair, the inner pipe 10 is first installed between the first joint 1 and the second joint 2 The handle 8 is pulled to drive the latch 6 to move outward. Since the diameter of the lower end of the latch 6 is larger than that of the upper end, the lower end of the latch 6 drives the first spring 7 on the outer surface to abut against the abutment block 14 outward. The elasticity of the first spring 7 is utilized to cause the latch 6 to move outward and shrink to the inside of the sleeve 5. At the same time, it is quickly inserted and installed into the inside of the mounting groove 4 of the first joint 1 through the mounting block 3 on the second joint 2. The handle 8 is released, and the latch 6 rebounds to the inside of the limiting hole 17 by utilizing the resilience of the first spring 7, so as to limit and fix the second joint 2 to prevent it from detaching.

[0029] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0030] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0031] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A novel throat joint for an injection molding machine, comprising a first joint (1) and a second joint (2), characterized in that: A plurality of mounting grooves (4) are provided inside one end of the first joint (1), a plurality of mounting blocks (3) are installed on one end of the second joint (2), the mounting blocks (3) are inserted into the interior of the mounting grooves (4), and the surfaces of the mounting blocks (3) are provided with limiting holes (17), a sleeve (5) is installed on the outer surface of the first joint (1), a latch (6) is installed inside the sleeve (5), the latch (6) is movably inserted into the interior of the limiting hole (17), a first spring (7) is sleeved on the outer surface of the latch (6), and a sealing protective cover (15) is movably sleeved on the first joint (1) and the second joint (2).

2. A novel throat joint for injection molding machine according to claim 1, characterized in that: The diameter of the lower end of the latch pin (6) is larger than the diameter of the upper end; the first spring (7) is sleeved on the outer surface of the upper end of the latch pin (6); the first spring (7) is installed inside the sleeve (5); and the first spring (7) is a compression spring structure.

3. The novel throat joint of injection molding machine according to claim 1 is characterized in that: A stop block (14) is provided at the top of the first spring (7), and the stop block (14) is fixedly mounted on the upper end of the sleeve (5).

4. The novel throat joint for injection molding machine according to claim 1 is characterized in that: The upper surface of the second joint (2) is provided with a plurality of slide grooves (16); the bottom of the sealing protective cover (15) is provided with a plurality of sliders (24) slidably connected to the slide grooves (16); the sealing protective cover (15) is slidably mounted on the surface of the connection between the second joint (2) and the first joint (1) via the sliders (24) and the slide grooves (16).

5. A novel throat joint for injection molding machine according to claim 4, characterized in that: A push rod (18) is movably inserted into the slide groove (16), one end of the push rod (18) is fixedly connected to the slider (24), the other end of the push rod (18) passes through the outside of the second joint (2) and is connected to a ring (19), and a second spring (23) is sleeved on the surface of the push rod (18), and the second spring (23) is located inside the slide groove (16).

6. A novel throat joint for injection molding machine according to claim 5, characterized in that: The second spring (23) is a compression spring structure, a sealing rubber pad is provided on the inner wall of the sealing protective cover (15), and a plurality of pull rings (22) are installed on the outer side of the circular ring (19).

7. The novel throat joint for injection molding machine according to claim 1 is characterized in that: A handle (8) is mounted on one end of the latch (6).

8. The novel throat joint for injection molding machine according to claim 1 is characterized in that: The inner walls of the first joint (1) and the second joint (2) are both provided with a rubber sealing layer (9), and an inner pipe (10) is inserted into the rubber sealing layer (9).

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