Water reducing opening weight runner

Abstract

The utility model relates to the technical field of dies, and discloses a water gap weight reducing runner which comprises a water gap main frame, inclined feeding type side frames which are connected in a bent mode are symmetrically fixed to the two sides of the water gap main frame, a water gap runner is arranged at the other ends of the inclined feeding type side frames, sleeves are arranged on the outer walls of the two ends of the water gap main frame, and the sleeves are sleeved with the water gap runner. A first collet is arranged at one end of the sleeve, a roller shaft is fixed to the end, close to the sleeve, of the first collet, an insertion rod is fixed to the other end of the roller shaft, the outer wall of the insertion rod is sleeved with a telescopic spring, one end of the telescopic spring is connected to the outer wall of the end, close to the insertion rod, of the roller shaft, and the other end of the telescopic spring is connected with a threaded rod. The water gap weight reducing runner is provided with the inclined feeding type side frame and the ejector rod, the water gap weight is reduced by reducing the length of the water gap runner, the material loss is reduced, the demolding difficulty is reduced in cooperation with the ejection effect of the ejector rod during demolding, and the risk that the water gap is not broken to cause residues or breakage in a front mold is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a weight-reducing flow channel for a sprue. Background Technology

[0002] A fine-gate mold is a precision mold type mainly used for producing various plastic products. It consists of several key parts, each playing an important role. Also known as a three-plate mold, the gate can be placed directly on the product or on the mold core. The gate location is flexible, but it is often placed on the side parting surface, between two half-plates.

[0003] Conventional sprue runners used in industrial production have long runners, which can lead to increased weight of the sprue section, greater material consumption, and a lack of auxiliary demolding structures. This can result in the sprue not being pulled out, causing residue or breakage in the front mold. To address this, we propose a sprue weight reduction runner. Utility Model Content

[0004] The purpose of this invention is to provide a water inlet weight reduction flow channel to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a weight reduction channel for a water inlet, comprising:

[0006] A sprue main frame has symmetrically fixed inclined side frames with bent connections on both sides. A sprue flow channel is provided at the other end of the inclined side frames. Sleeves are installed on the outer walls of both ends of the sprue main frame. A first collet is provided at one end of the sleeve. A roller is fixed at the end of the first collet near the sleeve. An insert rod is fixed at the other end of the roller. A telescopic spring is sleeved on the outer wall of the insert rod. One end of the telescopic spring is connected to the outer wall of the roller near the insert rod. A threaded rod is connected to the other end of the telescopic spring. The insert rod passes through the outer wall of the threaded rod near the telescopic spring. A second collet is threaded to the other end of the threaded rod. The sleeve is sleeved on the outer walls of the roller and the threaded rod.

[0007] An opening is formed inside the roller shaft and extends through to the outer wall of the end of the first collet away from the sleeve. An air bladder is placed on the inner wall of the end of the opening away from the first collet, and a top rod is connected to the other end of the air bladder.

[0008] Furthermore, the inclined side frame is symmetrically positioned about the central axis of the main sprue frame, and the sprue flow channel is perpendicular to the inclined side frame.

[0009] Furthermore, the roller shaft is telescopically connected to the threaded rod via an insert rod, and the roller shaft is also elastically telescopically connected to the threaded rod via a telescopic spring and the insert rod.

[0010] Furthermore, the first collet is elastically telescopically connected to the second collet via a roller and a threaded rod, and the sleeve is rotatably connected to the first collet and the second collet via a roller and a threaded rod.

[0011] Furthermore, the first collet is engaged with the main frame of the sprue via a sleeve and a second collet, and the first collet and the second collet are symmetrically positioned about the central axis of the main frame of the sprue.

[0012] Furthermore, the opening direction is the same as that of the water outlet channel, and the push rod forms an elastic telescopic connection with the first collet through the air bladder and the opening.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the gate weight reduction flow channel is provided with an inclined side frame and an ejector rod, which reduces the gate weight by reducing the length of the gate flow channel, reduces material loss, and, together with the ejector rod, reduces the ejection effect during demolding, reduces the demolding difficulty, and reduces the risk of the gate not being pulled out and causing residue or breakage in the front mold. Attached Figure Description

[0014] Figure 1 This is a side view of the combined water inlet and flow channel structure of this utility model.

[0015] Figure 2 This is a three-dimensional structural diagram of the sprue portion of this utility model;

[0016] Figure 3 This is a schematic diagram of the combined structure of the sleeve and clamp parts of this utility model;

[0017] Figure 4 This is a schematic diagram showing the disassembled and anatomically exposed structure of the sleeve portion of this utility model.

[0018] In the diagram: 1. Main sprue frame; 2. Inclined side frame; 3. Sleeve; 4. First collet; 5. Roller; 6. Insert rod; 7. Telescopic spring; 8. Threaded rod; 9. Second collet; 10. Opening; 11. Airbag; 12. Push rod; 13. Sprue flow channel. Detailed Implementation

[0019] 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.

[0020] This utility model provides an improved flow channel for reducing the weight of the inlet. Please refer to [link / reference]. Figures 1-2 The system includes: a main gate frame 1, with symmetrically fixed, bent, inclined side frames 2 on both sides of the main gate frame 1. A gate runner 13 is provided at the other end of the inclined side frame 2. The inclined side frame 2 is symmetrically positioned about the central axis of the main gate frame 1, and the gate runner 13 is perpendicular to the inclined side frame 2. By reducing the length of the gate runner 13 through the inclined side frame 2, the problem of excessively long secondary runners in conventional three-plate molds is solved, thereby reducing the weight of the gate and reducing material waste. At the same time, because the gate runner 13 is shorter, the pressure of the runner is reduced, thus reducing the injection pressure.

[0021] Please see Figure 1 and Figures 3-4 A water inlet weight reduction channel includes: sleeves 3 installed on the outer walls of both ends of a main water inlet frame 1, the sleeves 3 being used to protect the outer walls of the main water inlet frame and reduce friction damage; a first collet 4 is provided at one end of the sleeve 3, a roller shaft 5 is fixed at the end of the first collet 4 near the sleeve 3, and an insert rod 6 is fixed at the other end of the roller shaft 5, a telescopic spring 7 is sleeved on the outer wall of the insert rod 6, one end of the telescopic spring 7 is connected to the outer wall of the roller shaft 5 near the insert rod 6, and the other end of the telescopic spring 7 is connected to a threaded rod 8, the roller shaft 5 is connected to the insert rod 6 via the telescopic spring 7 and the insert rod 8. The rod 6 and the threaded rod 8 form an elastic telescopic connection, and the insert rod 6 penetrates to the outer wall of the threaded rod 8 near the telescopic spring 7. The roller 5 forms a telescopic connection with the threaded rod 8 through the insert rod 6. The insert rod 6 and the telescopic spring 7 are used to allow the roller 5 and the threaded rod 8 to telescopically extend and retract while preventing the roller 5 and the threaded rod 8 from separating, which would cause the first collet 4 and the second collet 9 to fall off the main nozzle frame. The other end of the threaded rod 8 is threadedly connected to the second collet 9, and the first collet 4 and the second collet 9 are positioned relative to the main nozzle frame 1. The components are symmetrically positioned along their axes. The first collet 4 is elastically and telescopically connected to the second collet 9 via the roller shaft 5 and the threaded rod 8. The first collet 4 is engaged with the main sprue frame 1 via the sleeve 3 and the second collet 9. The sleeve 3 is fitted onto the outer wall of the roller shaft 5 and the threaded rod 8, and the sleeve 3 is rotatably connected to the first collet 4 and the second collet 9 via the roller shaft 5 and the threaded rod 8. The roller shaft 5 has an opening 10 inside, which extends to the outer wall of the first collet 4 away from the sleeve 3. The opening 10 is connected to the water... The openings of the runner 13 are in the same direction. An air bladder 11 is installed on the inner wall of the end of the opening 10 away from the first collet 4. The other end of the air bladder 11 is connected to a push rod 12. The push rod 12 forms an elastic telescopic connection with the first collet 4 through the air bladder 11 and the opening 10. The push rod 12 is fixed to the lower ends of the main sprue frame through the first collet 4 and the second collet 9. When under pressure, the air bladder 11 is compressed and retracted into the opening 10. When demolding, the main sprue frame is lifted off the template by the air pressure, so as to achieve rapid demolding and reduce the difficulty of demolding.

[0022] Working principle: For this type of water-reducing nozzle weight flow channel, the operator first assembles the first collet 4, sleeve 3, and second collet 9. First, sleeve 3 is placed on the roller shaft 5 and threaded rod 8. Then, the operator tightens the second collet 9 to the threaded end of the threaded rod 8. During use, the distance between the roller shaft 5 and the threaded rod 8 can be controlled by adjusting the telescopic spring 7 and the insertion rod 6, thereby adjusting the distance between the first collet 4 and the second collet 9 to adapt and clamp the main frame 1 of different sizes and specifications of the water inlet. Subsequently, the operator then... The protective sleeve 3 is clamped at both ends of the main sprue frame. The length of the sprue runner 13 is adjusted by the inclined side frame 2 with its slanted bending. After the length of the sprue runner 13 is reduced by the inclined side frame 2, the material loss of the sprue part during injection is reduced and the weight of the sprue is also lighter. Finally, during injection, the ejector rod 12 compresses the air bladder 11 and retracts into the opening 10 by the clamping of the mold. When the mold is released, the ejector rod 12 drives the main sprue frame 1 to fall off the mold plate under the elastic force of the air bladder 11, which reduces the difficulty of demolding and reduces the risk of the sprue not being pulled out and causing residue or breakage in the front mold.

[0023] 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 gated weight flow channel, characterized by, include: A main sprue frame (1) is provided with symmetrically fixed inclined side frames (2) on both sides of the main sprue frame (1). A sprue flow channel (13) is provided at the other end of the inclined side frame (2). Sleeves (3) are installed on the outer walls of both ends of the main sprue frame (1). A first collet (4) is provided at one end of the sleeve (3). A roller shaft (5) is fixed at the end of the first collet (4) near the sleeve (3). An insert rod (6) is fixed at the other end of the roller shaft (5). A telescopic spring (7) is sleeved on the outer wall of the insert rod (6). One end of the telescopic spring (7) is connected to the outer wall of the roller shaft (5) near the insert rod (6). A threaded rod (8) is connected to the other end of the telescopic spring (7). The insert rod (6) passes through to the outer wall of the threaded rod (8) near the telescopic spring (7). A second collet (9) is connected to the other end of the threaded rod (8) by thread. The sleeve (3) is sleeved on the outer walls of the roller shaft (5) and the threaded rod (8). An opening (10) is formed inside the roller (5) and extends through to the outer wall of the first collet (4) away from the sleeve (3). An air bag (11) is placed on the inner wall of the opening (10) away from the first collet (4), and a top rod (12) is connected to the other end of the air bag (11).

2. A weight gate flow channel according to claim 1, wherein: The inclined side frame (2) is symmetrically positioned about the central axis of the main water inlet frame (1), and the water inlet channel (13) is perpendicular to the inclined side frame (2).

3. A weight gate flow channel according to claim 1 wherein: The roller (5) is telescopically connected to the threaded rod (8) via the insert rod (6), and the roller (5) is elastically telescopically connected to the threaded rod (8) via the telescopic spring (7) and the insert rod (6).

4. A weight gate flow channel according to claim 1 wherein: The first collet (4) is elastically telescopically connected to the second collet (9) through the roller (5) and the threaded rod (8), and the sleeve (3) is rotatably connected to the first collet (4) and the second collet (9) through the roller (5) and the threaded rod (8).

5. A weight gate flow channel according to claim 1 wherein: The first collet (4) is connected to the main frame of the sprue (1) by means of the sleeve (3) and the second collet (9), and the first collet (4) and the second collet (9) are symmetrically arranged about the central axis of the main frame of the sprue (1).

6. A weight gate flow channel according to claim 1 wherein: The opening (10) is in the same direction as the opening of the water outlet channel (13), and the push rod (12) forms an elastic telescopic connection with the first collet (4) through the air bag (11) and the opening (10).

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