Sectional type injection mold for plastic products

Abstract

The utility model discloses a sectional type injection mold for a plastic product, and relates to the field of injection molds. The device comprises an injection molding machine main body, a fixed mold plate and a movable mold plate which are arranged at the injection molding machine main body, and a conveying pipe for conveying injection molding raw materials, wherein a spiral conveying shaft for conveying the injection molding raw materials is arranged in the conveying pipe. According to the sectional type injection mold for the plastic products, the extension pipes capable of rotating at different angles are arranged on the outer wall of the combined type injection molding pipe, and through the arranged extension pipes, on one hand, the number of pipe bodies assisting in sectional feeding is differently controlled; and on the other hand, different pipe bodies can be stably connected with injection molding holes formed in different positions of the mold, so that the whole pipe body for assisting sectional injection molding is good in flexibility, and the injection molding requirements of different molds are met.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a segmented injection mold for plastic products. Background Art

[0002] At present, plastic products are manufactured using injection molding machines. When the injection molding machine is in use, the movable mold plate is moved to the fixed mold plate by a cylinder, and then the raw material is transported to the injection hole by a spiral conveyor shaft, and then enters the cavity between the fixed mold plate and the movable mold plate through the injection hole, so that the object in the shape after injection molding is the desired plastic product.

[0003] In the prior art, a segmented feeding device consisting of multiple groups of pipe bodies is arranged at one end of the conveying pipe close to the fixed template, so that materials can be fed to the cavity between the fixed template and the movable template at different positions at the same time. However, in this process, the segmented feeding device has great limitations, and different types of segmented feeding devices need to be produced, which increases production costs.

[0004] The main reason for the above problems is that the positions and numbers of injection holes opened in different templates vary depending on the template models, while the number of tubes used for conveying injection molding raw materials in a segmented feeding device of one model is fixed, and the setting position of the tubes is also fixed. When the positions of the injection holes opened in the template do not correspond to the positions of the tubes, part of the injection molding raw materials may be directly conveyed to the external environment, resulting in a waste of injection molding raw materials. To address the above problems, we propose a segmented injection mold for plastic products. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an injection mold, which solves the problem that the segmented feeding device has large limitations and different types of segmented feeding devices need to be produced, resulting in increased production costs.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a segmented injection mold for plastic products, comprising:

[0007] The injection molding unit comprises an injection molding machine body, a fixed mold plate and a movable mold plate arranged at the injection molding machine body, and a conveying pipe for conveying injection molding raw materials;

[0008] The segmentation unit comprises a first injection molding tube connected to one end of the delivery tube close to the fixed mold plate, and a plurality of groups of second injection molding tubes are arranged on the outer wall of the first injection molding tube;

[0009] The extension unit comprises extension tubes respectively connected to a plurality of groups of second injection tubes and a locking assembly used for locking the second injection tubes with the extension tubes at different setting angles.

[0010] Preferably, the outer wall of the second injection tube is fixedly connected to a bearing seat, and the outer wall of one end of the extension tube is provided with a threaded tube, and the outer wall of one end of the threaded tube is connected to the inner wall of the bearing seat.

[0011] Preferably, the locking assembly comprises:

[0012] A threaded sleeve fixedly connected to an end of the bearing seat away from the second injection tube;

[0013] The threaded ring is threadedly sleeved on the outer wall of the threaded tube, and the second injection tube and the threaded tube are locked by the threaded connection between the outer wall of the threaded ring and the inner wall of the threaded sleeve.

[0014] Preferably, the threaded ring is threadedly sleeved on the outer wall of the threaded pipe, and one end of the threaded ring is threadedly inserted into the interior of the threaded sleeve.

[0015] Preferably, a valve is provided at one end of the second injection tube close to the bearing seat.

[0016] Preferably, the fixed template is fixedly connected to the injection molding machine body, the movable template is slidably arranged on the top end surface of the injection molding machine body, and one side of the fixed template is provided with an injection hole corresponding to the position of the segmented unit.

[0017] Preferably, a screw conveying shaft for conveying injection molding raw materials is provided inside the conveying pipe.

[0018] The utility model discloses a segmented injection mold for plastic products, which has the following beneficial effects: the segmented injection mold for plastic products is provided with an extension tube that can be rotated at different angles on the outer wall of a combined injection tube. Through the provided extension tube, on the one hand, the number of tube bodies for auxiliary segmented feeding is controlled differently, and on the other hand, different tube bodies can be stably connected with injection holes opened at different positions of the mold, so that the overall tube body used for auxiliary segmented injection molding has better flexibility to meet the injection molding requirements of different molds. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the fixed mold plate and injection hole structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the fixed mold plate, injection molding pipe and conveying pipe of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the injection tube and the extension tube of the utility model;

[0024] Figure 5 This is an exploded view of the second injection tube and the extension tube structure of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the threaded pipe and the extended pipe of the utility model;

[0026] Figure 7 It is a schematic diagram of the structure of the bearing seat, threaded sleeve and threaded ring of the utility model.

[0027] In the figure, 1. injection molding machine body; 101. fixed mold plate; 102. movable mold plate; 103. conveying pipe; 104. spiral conveying shaft; 2. first injection molding pipe; 201. second injection molding pipe; 202. injection hole; 3. extension unit; 301. extension pipe; 302. threaded pipe; 303. bearing seat; 304. locking assembly; 3041. threaded sleeve; 3042. threaded ring; 305. valve. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The embodiment of the present application provides an injection mold to solve the problem that the segmented feeding device has large limitations and different types of segmented feeding devices need to be produced, which leads to increased production costs, and realizes flexible adjustment of the segmented feeding device.

[0030] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] The utility model embodiment discloses a segmented injection mold for a plastic product.

[0032] According to the attached Figure 1-7 As shown, including,

[0033] The injection molding unit comprises an injection molding machine body 1, a fixed mold plate 101 and a movable mold plate 102 arranged at the injection molding machine body 1, and a conveying pipe 103 for conveying injection molding raw materials. The fixed mold plate 101 is fixedly connected to the injection molding machine body 1, and the movable mold plate 102 is slidably arranged on the top end surface of the injection molding machine body 1. An injection hole 202 corresponding to the position of the segmented unit is opened on one side of the fixed mold plate 101. A spiral conveying shaft 104 for conveying injection molding raw materials is arranged inside the conveying pipe 103. The injection molding machine body 1, the fixed mold plate 101, the movable mold plate 102, The delivery pipe 103, the screw delivery shaft 104 and other components constitute an injection molding machine of model SZ-1600A. When it is in use, the movable mold plate 102 is moved to the fixed mold plate 101 by the cylinder. At this time, the cavity between the fixed mold plate 101 and the movable mold plate 102 is the shape of the plastic product to be injected. Then the raw material is transported to the injection hole 202 through the screw delivery shaft 104, and then enters the cavity between the fixed mold plate 101 and the movable mold plate 102 through the injection hole 202, so that the object in the shape after injection molding is the desired plastic product.

[0034] The segmented unit includes a first injection molding tube 2 connected to one end of the conveying tube 103 close to the fixed mold plate 101, and a plurality of second injection molding tubes 201 are arranged on the outer wall of the first injection molding tube 2. By setting the first injection molding tube 2 and the plurality of second injection molding tubes 201, the number of outlets of the conveying tube 103 is increased, so that materials can be simultaneously loaded into the cavity between the fixed mold plate 101 and the movable mold plate 102 at different positions.

[0035] The extension unit 3 increases the number of tube bodies arranged at the first injection tube 2 and the plurality of second injection tubes 201 through the arrangement of the extension unit 3, thereby adapting to the segmented injection molding of different molds, including the extension tubes 301 respectively connected to the plurality of second injection tubes 201 and the locking assembly 304 for locking the second injection tube 201 with the extension tubes 301 at different arrangement angles, the outer wall of the second injection tube 201 is fixedly connected with a bearing seat 303, and the outer wall of one end of the extension tube 301 is provided with a threaded tube 302 The outer wall of one end of the threaded tube 302 is connected to the inner wall of the bearing seat 303. The bearing seat 303 is set so that during the rotation of the extension tube 301, the extension tube 301 and the second injection tube 201 are always in a connected state. A valve 305 is set at one end of the second injection tube 201 close to the bearing seat 303. The connection state between the extension tube 301 and the second injection tube 201 can be controlled by the valve 305. The valve 305 can be set manually or electrically according to needs.

[0036] The locking assembly 304 includes a threaded sleeve 3041, which is fixedly connected to one end of the bearing seat 303 away from the second injection tube 201. The threaded ring 3042 is threadedly sleeved on the outer wall of the threaded tube 302. The second injection tube 201 and the threaded tube 302 are locked by the threaded connection between the outer wall of the threaded ring 3042 and the inner wall of the threaded sleeve 3041. The threaded ring 3042 is threadedly sleeved on the outer wall of the threaded tube 302, and one end of the threaded ring 3042 is threadedly inserted into the interior of the threaded sleeve 3041.

[0037] The segmented injection mold of the plastic product is provided with an extension tube 301 that can be rotated at different angles on the outer wall of the combined injection tube. The extension tube 301 can, on the one hand, control the number of tube bodies for auxiliary segmented feeding differently, and on the other hand, can stably connect different tube bodies with injection holes 202 opened at different positions of the mold, so that the overall tube body used for auxiliary segmented injection molding has better flexibility to meet the injection molding requirements of different molds.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A segmented injection mold for a plastic product, comprising: The injection molding unit comprises an injection molding machine body (1), a fixed mold plate (101) and a movable mold plate (102) arranged on the injection molding machine body (1), and a conveying pipe (103) for conveying injection molding raw materials; The segmented unit comprises a first injection molding tube (2) connected to an end of the delivery tube (103) close to the fixed mold plate (101), wherein the outer wall of the first injection molding tube (2) is provided with a plurality of groups of second injection molding tubes (201); It is characterized in that The extension unit (3) comprises extension tubes (301) respectively connected to a plurality of groups of second injection tubes (201) and a locking assembly (304) used for locking the second injection tubes (201) and the extension tubes (301) at different setting angles.

2. A segmented injection mold for a plastic product according to claim 1, characterized in that: The outer wall of the second injection tube (201) is fixedly connected to a bearing seat (303), and the outer wall of one end of the extension tube (301) is provided with a threaded tube (302), and the outer wall of one end of the threaded tube (302) is connected to the inner wall of the bearing seat (303).

3. A segmented injection mold for a plastic product according to claim 1, characterized in that: The locking assembly (304) comprises: A threaded sleeve (3041) fixedly connected to an end of the bearing seat (303) away from the second injection tube (201); The threaded ring (3042) is threadably sleeved on the outer wall of the threaded tube (302), and the second injection tube (201) and the threaded tube (302) are locked via the threaded connection between the outer wall of the threaded ring (3042) and the inner wall of the threaded sleeve (3041).

4. A segmented injection mold for a plastic product according to claim 3, characterized in that: The threaded ring (3042) is threadedly sleeved on the outer wall of the threaded tube (302), and one end of the threaded ring (3042) is threadedly inserted into the interior of the threaded sleeve (3041).

5. The segmented injection mold for a plastic product according to claim 1, characterized in that: A valve (305) is provided at one end of the second injection tube (201) close to the bearing seat (303).

6. The segmented injection mold for a plastic product according to claim 1, characterized in that: The fixed platen (101) is fixedly connected to the injection molding machine body (1), the movable platen (102) is slidably arranged on the top end surface of the injection molding machine body (1), and an injection hole (202) corresponding to the position of the segmented unit is opened on one side of the fixed platen (101).

7. The segmented injection mold for a plastic product according to claim 1, characterized in that: A screw conveying shaft (104) for conveying injection molding raw materials is arranged inside the conveying pipe (103).

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