An injection molding device for manufacturing diving rescue and salvage lifeboats

Abstract

This utility model relates to the field of injection molding equipment technology, and discloses an injection molding device for the production of diving rescue and salvage boats. It achieves uniform filling by setting up a frame, plasticizing device, stationary mold, bottom gate, and point gate. First, the material is evenly filled into the feeding cylinder. After being heated by the plasticizing device, it is extruded through the extrusion cylinder. Before injection molding, the mold closing cylinder should be activated. The output shaft of the mold closing cylinder pushes the moving mold towards the stationary mold, so that the moving mold and stationary mold are tightly pressed together and then closed. Subsequently, the extrusion cylinder extrudes the internal melt, which then enters the annular runner. The annular runner evenly disperses the melt into the bottom gate and point gate. The bottom gate and point gate evenly spray the melt into the mold cavity after mold closing, achieving a uniform filling effect.

Description

Technical Field

[0001] This utility model relates to the field of injection molding equipment technology, and in particular to an injection molding device for the production of diving rescue and salvage lifeboats. Background Technology

[0002] Diving salvage refers to underwater rescue, equipment salvage, or engineering operations conducted by professionals. It covers multiple fields such as emergency rescue, shipwreck salvage, and underwater exploration. Diving salvage requires the use of lifeboat equipment, and many components of the lifeboat need to be manufactured using injection molding equipment during the production process. These include the lifeboat's paddle head, seat, buoyancy stop, Velcro assembly, and other small accessories.

[0003] In the existing technology, there are certain shortcomings in the production of fastener assemblies for fixing components such as oars. For example, during injection molding, the gate of ordinary molds is a single gate such as a side gate or a point gate, which results in a long melt flow path, large pressure loss at the hook teeth of the fastener, and the cooling rate is greater than the filling rate, resulting in incomplete filling of the hook teeth, such as missing material or deformation. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an injection molding device for the production of diving rescue and salvage lifeboats, which has the advantages of complete filling and increased strength, thus solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: an injection molding device for the production of diving rescue and salvage boats, including a base frame, a frame on one side of the base frame, a plasticizing device fixedly installed on the top of the base frame, the frame including a bottom plate and a side plate, a mold closing cylinder fixedly installed on one side of the side plate, and a slide evenly arranged in a rectangular array on the other side of the side plate, a moving mold slidably installed on the outer ring of the slide, a mold groove A opened on one side of the moving mold, and the other side of the moving mold fixedly connected to the end of the output shaft of the mold closing cylinder, a feeding cylinder fixedly connected to the top of the plasticizing device, an extrusion cylinder installed on one side of the plasticizing device, and a stationary mold fixedly installed on the top of the bottom plate on one side of the base frame.

[0006] The above structural design achieves uniform filling by setting the bottom gate and the point gate. The cooperation between the sleeve, the static mixer and the extrusion barrel ensures that the melt is fully mixed from the end of the extrusion barrel to the bottom gate and the point gate. The synergy between the bottom gate, the point gate and the static mixer solves the problem of insufficient filling of the hook teeth, which leads to material shortage and deformation. It also improves the strength of the connection during filling and comprehensively improves the quality and performance of the workpiece.

[0007] Preferably, the surface of the stationary mold has slots evenly arranged in a rectangular array, and the stationary mold is fixedly sleeved on the outer ring of the carriage through the slots. The side of the stationary mold closest to the moving mold has a mold groove B.

[0008] With the above structural design, the extrusion cylinder extrudes the melt into the mold cavity after mold closing, achieving a uniform filling effect. The positions of both the moving mold and the stationary mold are restricted by the slide, which improves the accuracy of mold closing between the moving mold and the stationary mold.

[0009] Preferably, an annular flow channel is provided inside the mold groove B, a bottom gate is provided between the inner wall of the mold groove B and the annular flow channel, and a bottom gate is uniformly provided in a circular shape between the inner wall of the mold groove B and the annular flow channel.

[0010] With the above structural setup, the bottom gate is located below the mold cavity, which uniformly fills the bottom ring of the mold cavity, while the spot gate is located at the top ring and hook teeth of the mold cavity. During filling, the melt melts together through contact, which shortens the melt flow path and ensures sufficient pressure at the hook teeth and ring, thus avoiding material shortage and deformation caused by insufficient filling.

[0011] Preferably, a sleeve is fixedly connected between one side of the static mold and the annular flow channel, one end of the extrusion cylinder is located inside the sleeve, and a static mixer is provided between the end face of the sleeve and the inner wall of the annular flow channel.

[0012] With the above structural design, when the melt enters the annular flow channel through the static mixer, the melt will be fully mixed with the spiral blades of the static mixer. Furthermore, the shearing action of the static mixer can disperse the glass fibers in the melt, preventing the accumulation of glass fibers from causing insufficient connection strength between the ring and the hook teeth of the workpiece, which can easily lead to breakage.

[0013] This utility model has the following advantages:

[0014] 1. This injection molding device for the production of diving rescue and salvage boats achieves uniform filling through the setting of a frame, plasticizing device, stationary mold, bottom gate, and spot gate. First, the material is evenly filled into the feeding cylinder. After being heated by the plasticizing device, it is extruded through the extrusion cylinder. Before injection molding, the mold closing cylinder should be activated. The output shaft of the mold closing cylinder pushes the moving mold towards the stationary mold, so that the moving mold and the stationary mold are tightly attached and then closed. Then, the extrusion cylinder extrudes the internal melt and then enters the annular runner. The annular runner evenly disperses the melt into the bottom gate and spot gate. The bottom gate and spot gate evenly spray the melt into the mold cavity after mold closing, achieving the effect of uniform filling.

[0015] 2. This injection molding device for the production of diving rescue and salvage boats improves strength by setting up structures such as static molds, sleeves, and static mixers. The extrusion cylinder extrudes the internal melt, which enters the annular flow channel through the static mixer. The spiral blades of the static mixer fully stir and mix the melt, making the temperature and composition more uniform. Furthermore, the shearing action of the static mixer disperses the glass fibers in the melt, preventing glass fiber aggregation and reducing the risk of weld lines caused by uneven melt. This improves the strength of the connection between the ring and the hook teeth, thus enhancing the connection strength. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the frame of this utility model;

[0018] Figure 3 This is a schematic diagram of the static mold structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the static mold of this utility model.

[0020] In the diagram: 1. Base frame; 2. Frame; 21. Base plate; 22. Mold closing cylinder; 23. Slide carriage; 24. Moving mold; 3. Plasticizing device; 31. Feeding cylinder; 32. Extrusion cylinder; 4. Stationary mold; 41. Slot; 42. Mold groove B; 43. Annular runner; 44. Bottom gate; 45. Point gate; 46. Sleeve; 47. Static mixer. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-2 A molding device for producing diving rescue and salvage lifeboats includes a base frame 1, a frame 2 on one side of the base frame 1, and a plasticizing device 3 fixedly installed on the top of the base frame 1. The frame 2 includes a base plate 21 and a side plate. A mold clamping cylinder 22 is fixedly installed on one side of the side plate, and a slide 23 is evenly arranged in a rectangular array on the other side of the side plate. A moving mold 24 is slidably installed on the outer ring of the slide 23. A mold groove A is opened on one side of the moving mold 24, and the other side of the moving mold 24 is fixedly connected to the end of the output shaft of the mold clamping cylinder 22. A feeding cylinder 31 is fixedly connected to the top of the plasticizing device 3, and an extrusion cylinder 32 is installed on one side of the plasticizing device 3. A stationary mold 4 is fixedly installed on the top of the base plate 21 on one side of the base frame 1.

[0023] In practical applications, this device achieves uniform filling by setting a bottom gate 44 and a point gate 45. After the extruder 32 extrudes the melt, it is evenly distributed inside the bottom gate 44 and the point gate 45 through the annular flow channel 43. The bottom gate 44 fills the bottom ring of the workpiece, and the point gate 45 fills the upper ring and the hook tooth part of the workpiece, so that every part of the workpiece can be completely filled by the melt. At the same time, the melt path is shortened to ensure sufficient pressure in the ring and hook tooth parts of the workpiece, avoiding deformation caused by insufficient material or inadequate filling.

[0024] By setting up the sleeve 46, the static mixer 47 and the extrusion cylinder 32, the melt can be fully mixed from the end of the extrusion cylinder 32 to the bottom gate 44 and the point gate 45. The static mixer 47 uniformly spirally stirs the melt extruded from the extrusion cylinder 32, and disperses the glass fiber in the melt through the shearing action of the static mixer 47, avoiding the weak joint strength caused by the glass fiber agglomeration and easy breakage.

[0025] The synergistic effect between the bottom gate 44, the spot gate 45 and the static mixer 47 ensures that the melt can fill the mold cavity evenly and quickly, solving the problem of insufficient filling of the hook teeth leading to material shortage and deformation. The static mixer 47 further optimizes the melt quality, improves the strength of the joint during filling, and comprehensively improves the quality and performance of the workpiece.

[0026] Please see Figures 1-4 The surface of the stationary mold 4 has slots 41 evenly arranged in a rectangular array. The stationary mold 4 is fixedly sleeved on the outer ring of the slide 23 through the slots 41. The side of the stationary mold 4 closest to the moving mold 24 has a mold groove B42. After the mold groove B42 and the mold groove A are closed, they form a template.

[0027] After the stationary mold 4 and the moving mold 24 are closed, the melt is extruded through the extrusion cylinder 32 and enters the mold cavity after the mold is closed, achieving a uniform filling effect. The positions of the moving mold 24 and the stationary mold 4 are both restricted by the slide 23, which improves the accuracy of the mold closing of the moving mold 24 and the stationary mold 4.

[0028] Please see Figures 1-4 The mold cavity B42 has an annular runner 43 inside, and a bottom gate 44 is provided between the inner wall of the mold cavity B42 and the annular runner 43. The inner wall of the mold cavity B42 and the annular runner 43 are provided with a ring-shaped and uniformly arranged spot gates 45.

[0029] The molten material extruded by the extrusion cylinder 32 is evenly dispersed into the bottom gate 44 and the spot gate 45 through the annular flow channel 43, so that the mold cavity can be evenly filled. The bottom gate 44 is located at the bottom of the mold cavity and evenly fills the bottom ring of the mold cavity, while the spot gate 45 is located at the top ring and the hook teeth of the mold cavity. During filling, the molten material contacts and melts, shortening the flow path of the molten material and ensuring sufficient pressure at the hook teeth and the ring, thus avoiding material shortage and deformation caused by insufficient filling.

[0030] Please see Figures 1-4 A sleeve 46 is fixedly connected between one side of the static mold 4 and the annular flow channel 43. One end of the extrusion cylinder 32 is located inside the sleeve 46. A static mixer 47 is provided between the end face of the extrusion cylinder 32 and the inner wall of the annular flow channel 43.

[0031] The melt extruded from the extrusion cylinder 32 is first uniformly mixed and dispersed by the static mixer 47. When the melt enters the annular flow channel 43 through the static mixer 47, the melt will be fully mixed with the spiral blades of the static mixer 47. Furthermore, the shearing action of the static mixer 47 can disperse the glass fibers in the melt, preventing the accumulation of glass fibers from causing insufficient connection strength between the ring and the hook teeth of the workpiece, which is prone to breakage.

[0032] Working principle: During use, the material is first evenly filled into the feeding cylinder 31. After being heated by the plasticizing device 3, it is extruded through the extrusion cylinder 32. Before injection molding, the mold closing cylinder 22 should be activated. The output shaft of the mold closing cylinder 22 pushes the moving mold 24 towards the stationary mold 4, so that the moving mold 24 and the stationary mold 4 are tightly pressed together and then the mold is closed. Subsequently, the extrusion cylinder 32 extrudes the internal melt. When it enters the annular flow channel 43 through the static mixer 47, the spiral blades of the static mixer 47 thoroughly stir and mix the melt, making the temperature and composition more uniform. Furthermore, the shearing action of the static mixer 47 disperses the glass fibers in the melt, preventing them from agglomerating. The melt then enters the annular flow channel 43, which evenly disperses the melt into the bottom gate 44 and the point gate 45. The bottom gate 44 and the point gate 45 then evenly spray the melt into the mold cavity after mold closing, achieving a uniform injection effect. This device ensures that the melt fills the mold cavity in a good state, reducing the problem of insufficient filling at the hook teeth, and also reduces the risk of weld lines caused by uneven melt flow, thus improving the strength of the connection between the ring body and the hook teeth.

Claims

1. An injection molding device for manufacturing diving rescue and salvage lifeboats, comprising a base frame (1), characterized in that: A frame (2) is provided on one side of the base frame (1), and a plasticizing device (3) is fixedly installed on the top of the base frame (1). The frame (2) includes a base plate (21) and a side plate. A mold clamping cylinder (22) is fixedly installed on one side of the side plate, and a slide (23) is evenly arranged in a rectangular array on the other side of the side plate. A moving mold (24) is slidably installed on the outer ring of the slide (23). A mold groove A is opened on one side of the moving mold (24), and the other side of the moving mold (24) is fixedly connected to the end of the output shaft of the mold clamping cylinder (22). A feeding cylinder (31) is fixedly connected to the top of the plasticizing device (3), and an extrusion cylinder (32) is installed on one side of the plasticizing device (3). A stationary mold (4) is fixedly installed on the top of the base plate (21) on one side of the base frame (1).

2. The injection molding device for manufacturing diving rescue and salvage lifeboats according to claim 1, characterized in that: The surface of the stationary mold (4) is provided with slots (41) evenly arranged in a rectangular array. The stationary mold (4) is fixedly sleeved on the outer ring of the slide (23) through the slots (41). The side of the stationary mold (4) close to the moving mold (24) is provided with a mold groove B (42).

3. The injection molding device for manufacturing diving rescue and salvage lifeboats according to claim 2, characterized in that: The mold groove B (42) has an annular runner (43) inside, and a bottom gate (44) is provided between the inner wall of the mold groove B (42) and the annular runner (43). A spot gate (45) is uniformly provided in a circular shape between the inner wall of the mold groove B (42) and the annular runner (43).

4. The injection molding device for manufacturing diving rescue and salvage lifeboats according to claim 3, characterized in that: A sleeve (46) is fixedly connected between one side of the static mold (4) and the annular flow channel (43). One end of the extrusion cylinder (32) is located inside the sleeve (46). A static mixer (47) is provided between the end face of the sleeve (46) and the inner wall of the annular flow channel (43).

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