An injection molding machine for ski binding components

Abstract

The utility model discloses a kind of injection molding machines for ski fixator parts, it is related to injection molding machine design technical field, including base, melt plasticizing equipment, die assembly is arranged on the base, feed hopper is arranged on the upper inlet of melt plasticizing equipment, the outlet of melt plasticizing equipment is provided with screw conveyor, the end of screw conveyor away from melt plasticizing equipment is provided with indirect device, the indirect device includes heat insulation cylinder, the heat insulation cylinder is fixedly connected in front baffle of die assembly, support cylinder is fixedly installed in the heat insulation cylinder, extrusion straight rod is slidably installed in the support cylinder;The device moves by extrusion straight rod, let extrusion straight rod extrude the plastic being used, not only can reduce injection molding product on injection molding residue, facilitate subsequent cleaning, while demolding when injection molding product, extrusion straight rod can also be inserted into mold cavity, prevent product from being stuck in front mould and unable to drop.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine design technology, specifically to an injection molding machine for ski binding parts. Background Technology

[0002] In today's manufacturing industry, injection molding is an important plastic processing technology that is widely used in the production of various products. Especially in the sports equipment industry, such as the production of ski equipment, there are extremely high requirements for the quality, precision and production efficiency of the parts. As a key component of ski equipment, the performance of ski bindings is directly related to the safety and experience of users. Therefore, even more stringent standards are put forward for the production quality and process level of its parts.

[0003] Traditional injection molding machines face a series of problems when producing ski binding parts; among them, injection residue is a particularly prominent issue. During the injection molding process, due to the flow characteristics of the plastic in the feed tube and the influence of factors such as the mold structure, a certain amount of injection residue is inevitably left on the molded product. This residue not only affects the appearance quality of the product and increases the workload and difficulty of subsequent cleaning, but also, over a long period of time, may cause blockages in the production equipment, thereby affecting the continuity and stability of production.

[0004] Traditional injection molding machines also have certain limitations in controlling the pressure of plastic inside the mold, which can easily lead to cavities in the finished product. The presence of cavities weakens the structural strength of the product, reduces its reliability and service life, which is unacceptable for ski binding parts with strict quality requirements. Summary of the Invention

[0005] To address the aforementioned technical problems, this utility model proposes the following technical solution:

[0006] An injection molding machine for ski binding parts includes a base and a melting and plasticizing device. A mold assembly is provided on the base. A feed funnel is provided at the upper inlet of the melting and plasticizing device. A screw conveyor is provided at the outlet of the melting and plasticizing device. An indirect device is provided at one end of the screw conveyor away from the melting and plasticizing device. The other end of the indirect device is connected to the mold assembly.

[0007] Furthermore, the indirect device includes an insulated box and a heat insulation cylinder. The insulated box is fixedly connected to the screw conveyor, and the heat insulation cylinder is fixedly connected to the front partition in the mold assembly. The insulated box is made of heat insulation material, and a conveying pipe is fixedly installed inside the insulated box. The other end of the conveying pipe is fixedly connected to the front partition in the mold assembly, and the conveying pipe is used to connect the screw conveyor and the mold assembly. A support cylinder is fixedly installed inside the heat insulation cylinder, and an extrusion rod is slidably installed inside the support cylinder.

[0008] Furthermore, the extrusion rod is made of a material with low thermal conductivity, the support cylinder can extend deep into the conveying pipe, and the support cylinder can also enter the feed through hole of the mold assembly after it moves.

[0009] Furthermore, a movable ring cylinder is slidably installed on the conveying pipe, and the movable ring cylinder is slidably installed inside the insulation box. A flow-stopping cavity is provided inside the conveying pipe, and the flow-stopping cavity is located inside the movable ring cylinder. A plug is provided inside the flow-stopping cavity, and the plug contacts the inner wall of the conveying pipe after it moves to block one end of the flow-stopping cavity.

[0010] Furthermore, the plugging head is fixedly connected to the inner side of the movable ring cylinder, and the movable ring cylinder is used to drive the plugging head to move inside the conveying pipe. A flow-stopping screw is rotatably installed on the outer wall of the insulation box, and the flow-stopping screw is connected to the movable ring cylinder by a thread. The flow-stopping screw is used to drive the movable ring cylinder and the plugging head to slide on the conveying pipe.

[0011] Furthermore, a movable ring plate is slidably installed on the outside of the support cylinder, and the movable ring plate is fixedly connected to one end of the extrusion rod. An extrusion motor is fixedly installed on the outside of the support cylinder, and an extrusion screw is fixedly installed on the output shaft of the extrusion motor. The extrusion screw is threadedly connected to the movable ring plate. The extrusion motor and the extrusion screw are used to drive the movable ring plate and the extrusion rod to move inside the support cylinder.

[0012] Furthermore, the screw conveyor includes a barrel for heat insulation and heat preservation, a feeding screw for driving plastic material, and a nozzle tube is provided at the end of the barrel away from the melting and plasticizing equipment.

[0013] The beneficial effects of this invention compared with the prior art are: (1) This device uses the movement of the extrusion rod to extrude the plastic being used, which not only reduces the injection residue on the injection molded product and facilitates subsequent cleaning, but also allows the extrusion rod to penetrate into the mold cavity when the injection molded product is demolded, preventing the product from getting stuck in the front mold and unable to fall out; (2) This device uses the plug head to seal the conveying pipe in advance, thereby allowing the extrusion rod to extrude the plastic material in the feed hole, further increasing the pressure of the plastic material in the mold cavity, avoiding the appearance of cavities in the molded product in the mold cavity, and further increasing the density of the molded product. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the screw conveyor structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the mold assembly structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the insulated box of this utility model.

[0018] Figure 5 This is a cross-sectional structural diagram of the insulated box, heat insulation cylinder, insulated box, and feeding screw of this utility model.

[0019] Figure 6 This is a cross-sectional structural diagram of the insulated box, movable ring cylinder, conveying pipe, and plug head of this utility model.

[0020] Figure 7 This is a cross-sectional view of the heat insulation cylinder, support cylinder, front mold, and front partition of this utility model.

[0021] Figure 8 This is a cross-sectional structural diagram of the indirect device, screw conveyor, and mold assembly of this utility model.

[0022] Figure 9 for Figure 8 Enlarged view of a portion of point A in the middle.

[0023] Figure 10 This is a schematic diagram of the plug head structure of this utility model.

[0024] Reference numerals: 10-Base; 20-Indirect device; 201-Insulation box; 202-Insulation cylinder; 203-Stop motor; 204-Stop screw; 205-Moving ring cylinder; 206-Conveying pipe; 207-Blocking head; 208-Extrusion motor; 209-Extrusion screw; 210-Support cylinder; 211-Moving ring plate; 212-Extrusion rod; 30-Screw conveyor; 301-Barrel; 302-Feeding screw; 303-Nozzle pipe; 40-Melting and plasticizing equipment; 50-Feeding funnel; 60-Mold assembly; 601-Moving mold cylinder; 602-Rear partition plate; 603-Moving plate; 604-Rear mold; 605-Front mold; 606-Front mold frame; 607-Front partition plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] Example 1:

[0027] This invention discloses an injection molding machine for ski binding components, such as... Figures 1 to 3 As shown, the device includes a base 10 and a melting and plasticizing device 40. A mold assembly 60 is mounted on the base 10. A feed hopper 50 is provided at the upper inlet of the melting and plasticizing device 40, and a screw conveyor 30 is provided at the outlet of the melting and plasticizing device 40. Plastic granules in the feed hopper 50 are conveyed into the melting and plasticizing device 40 by gravity. The melting and plasticizing device 40 heats the plastic granules and sends them into the screw conveyor 30. An indirect device 20 is provided at one end of the screw conveyor 30 away from the melting and plasticizing device 40, and the other end of the indirect device 20 is connected to the mold assembly 60.

[0028] The screw conveyor 30 includes a material cylinder 301 for heat insulation and heat preservation, and a feeding screw 302 for driving plastic material. A nozzle pipe 303 is provided at the end of the material cylinder 301 away from the melting and plasticizing equipment 40.

[0029] Example 2:

[0030] This embodiment further expands upon Embodiment 1 regarding the mold assembly 60, such as... Figure 2 , Figure 3 As shown, the mold assembly 60 includes a rear partition 602 and a front partition 607. A sliding rod is provided between the rear partition 602 and the front partition 607. A moving plate 603 is provided on the sliding rod. A moving mold cylinder 601 is fixedly installed on one side of the rear partition 602. The moving end of the moving mold cylinder 601 is fixedly connected to the moving plate 603. The moving mold cylinder 601 is used to drive the moving plate 603 to slide between the rear partition 602 and the front partition 607. A rear mold 604 is provided on the moving plate 603. A front mold frame 606 is provided on the side of the front partition 607 near the rear partition 602. A front mold 605 is fixedly installed on the front mold frame 606. The front mold 605 can fit with the rear mold 604 to form a mold cavity. The front partition 607, the front mold frame 606, and the front mold 605 are provided with feeding holes to allow materials to enter the mold cavity. Oil cooling pipes are provided in the front mold frame 606, the front mold 605, and the rear mold 604 to accelerate the cooling process after the mold is shaped.

[0031] Example 3:

[0032] This embodiment further expands upon embodiment 1 regarding the indirect device 20, such as... Figures 4 to 10 As shown, the indirect device 20 includes an insulation box 201 and a heat insulation cylinder 202. The insulation box 201 is fixedly connected to the screw conveyor 30, and the heat insulation cylinder 202 is fixedly connected to the front partition 607 in the mold assembly 60. The insulation box 201 is made of insulation material. A conveying pipe 206 is fixedly installed inside the insulation box 201. The other end of the conveying pipe 206 is fixedly connected to the front partition 607 in the mold assembly 60. The conveying pipe 206 is used to connect the nozzle pipe 303 in the screw conveyor 30 and the feed through hole in the mold assembly 60. A movable ring cylinder 205 is slidably installed on the conveying pipe 206. The movable ring cylinder 205 is slidably installed inside the insulation box 201. A flow-stopping cavity is provided inside the conveying pipe 206. The flow-stopping cavity is located in the movable ring cylinder 201. Inside the 5-side, a plug head 207 is provided in the flow-stopping cavity. After moving, the plug head 207 contacts the inner wall of the delivery pipe 206 to block one end of the flow-stopping cavity and prevent the plastic material from flowing back. The plug head 207 is fixedly connected to the inner side of the moving ring cylinder 205. The moving ring cylinder 205 is used to drive the plug head 207 to move in the delivery pipe 206. A flow-stopping screw 204 is rotatably installed on the outer wall of the insulation box 201. The flow-stopping screw 204 is connected to the moving ring cylinder 205 by a thread. A flow-stopping motor 203 is provided on the outer wall of the insulation box 201. The output shaft of the flow-stopping motor 203 is fixedly connected to the flow-stopping screw 204. The flow-stopping motor 203 and the flow-stopping screw 204 are used to drive the moving ring cylinder 205 and the plug head 207 to slide on the delivery pipe 206.

[0033] A support cylinder 210 is fixedly installed inside the heat insulation cylinder 202. The support cylinder 210 is cylindrical, and an extrusion rod 212 is slidably installed inside the support cylinder 210. The extrusion rod 212 is made of a material with low thermal conductivity. The support cylinder 210 can extend into the conveying pipe 206, and after moving, it can also enter the feed through hole of the mold assembly 60. The outer wall of the extrusion rod 212 can fit against the inner wall of the feed through hole in the mold assembly 60. The extrusion rod 212 can extrude the plastic material in the feed through hole and can also clean the residual plastic material in the feed through hole. The extrusion rod 212 also... The cooled and shaped product can be extruded into the mold groove of the front mold 605 within the mold cavity of the mold assembly 60. A movable ring plate 211 is slidably installed on the outside of the support cylinder 210. The movable ring plate 211 is fixedly connected to one end of the extrusion rod 212. An extrusion motor 208 is fixedly installed on the outside of the support cylinder 210. An extrusion screw 209 is fixedly installed on the output shaft of the extrusion motor 208. The extrusion screw 209 is threadedly connected to the movable ring plate 211. The extrusion motor 208 and the extrusion screw 209 are used to drive the movable ring plate 211 and the extrusion rod 212 to move within the support cylinder 210.

[0034] The working process of this device is as follows: When using this device, the mold in the mold assembly 60 needs to be processed first. The moving plate 603, rear mold 604, front mold 605, and front mold frame 606 in the mold assembly 60 are the shapes of the molds when in use, such as... Figure 2 and Figure 3 The state shown is the state when the mold is in use. At this time, the cooling pipe needs to be connected to the rear mold 604, the front mold 605, and the front mold frame 606. Then, the plastic granules are put into the device from the feed funnel 50. The melting and plasticizing equipment 40 is used to heat the plastic granules to melt them into flowable plastic. Then, the feeding screw 302 in the screw conveyor 30 will rotate. The feeding screw 302 will transport the molten plastic material to the indirect device 20. Then, through the indirect device 20, it will be transported to the mold cavity formed after the rear mold 604 and the front mold 605 are in close contact.

[0035] In its specific operation, the indirect device 20 needs to perform the following actions: First, after the plastic material enters the conveying pipe 206 through the nozzle pipe 303, the plastic material will directly enter the other end of the conveying pipe 206 through the flow-stopping cavity inside the conveying pipe 206, thus allowing the plastic material to enter the feed through hole. After that, the plastic material can enter the mold cavity for filling through the feed through hole. During the filling process, the amount of plastic material entering is controlled by the rotation of the feeding screw 302. When the filling of a part is completed, the feeding screw 302 stops rotating, and then the flow-stopping motor 203 starts to drive the moving ring cylinder 205 and the plug head 207 in the conveying pipe 206. The internal movement of the plug head 207 blocks one end of the flow-stopping cavity to prevent the plastic material from flowing back. Then, the extrusion motor 208 in the indirect device 20 starts. The extrusion motor 208 drives the moving ring plate 211 and the extrusion rod 212 to move through the extrusion screw 209. After the extrusion rod 212 moves, one end of the extrusion rod 212 extends into the delivery pipe 206, thus extruding the plastic material in the delivery pipe 206. It should be noted that when the extrusion rod 212 moves, it will also push the plastic material backward. To prevent the plastic material from being missing or lacking a fixed dose, the plug head 207 is set at the flow-stopping cavity to prevent the plastic material from flowing back.

[0036] After the extrusion rod 212 enters the conveying pipe 206, it can extrude the plastic material in the conveying pipe 206 into the feed through hole. Similarly, the extrusion rod 212 will continue to move, thus continuously extruding the plastic material in the feed through hole until one end of the extrusion rod 212 is about to approach the mold cavity in the front mold 605. In this way, the extrusion rod 212 can not only reduce the amount of plastic material in the feed through hole in the front mold 605, but also increase the density of the molded product in the mold cavity through extrusion. This can meet the requirements of manufacturing high-density and high-strength materials, such as ski bindings and plastic support parts. When the molded product in the mold cavity is cooled by the mold cooling system, the extrusion rod 212, due to its low thermal conductivity, can effectively prevent the low temperature in the front mold 605 from being transferred to the conveying pipe 206. This avoids the cooling of unused plastic material and thus avoids waste of plastic material.

[0037] After the molded product has cooled down, the front mold 605 and the rear mold 604 separate. At this time, the extrusion rod 212 continues to move away from the heat insulation cylinder 202. One end of the extrusion rod 212 will enter the mold cavity. In this way, the extrusion rod 212 can extrude and cool the molded product, allowing the molded product to separate from the front mold 605 and then fall into the receiving box or be collected by the staff.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. An injection molding machine for ski binding parts, comprising a base (10) and a melting and plasticizing device (40), wherein a mold assembly (60) is disposed on the base (10), a feed funnel (50) is disposed at the upper inlet of the melting and plasticizing device (40), and a screw conveyor (30) is disposed at the outlet of the melting and plasticizing device (40), characterized in that: An indirect device (20) is provided at one end of the screw conveyor (30) away from the melting and plasticizing equipment (40), and the other end of the indirect device (20) is connected to the mold assembly (60); The indirect device (20) includes an insulation box (201) and a heat insulation cylinder (202). The insulation box (201) is fixedly connected to the screw conveyor (30), and the heat insulation cylinder (202) is fixedly connected to the front partition (607) in the mold assembly (60). The insulation box (201) is made of heat insulation material. A conveying pipe (206) is fixedly installed inside the insulation box (201). The other end of the conveying pipe (206) is fixedly connected to the front partition (607) in the mold assembly (60). The conveying pipe (206) is used to connect the screw conveyor (30) and the mold assembly (60). A support cylinder (210) is fixedly installed inside the heat insulation cylinder (202), and an extrusion rod (212) is slidably installed inside the support cylinder (210).

2. The injection molding machine for ski binding parts according to claim 1, wherein: The extrusion rod (212) is made of a material with low thermal conductivity. The support cylinder (210) can be inserted into the conveying pipe (206). After the support cylinder (210) moves, it can also enter the feed through hole of the mold assembly (60).

3. The injection molding machine for ski binding parts according to claim 1, wherein: A movable ring cylinder (205) is slidably installed on the conveying pipe (206). The movable ring cylinder (205) is slidably installed inside the insulation box (201). A flow-stopping cavity is provided inside the conveying pipe (206). The flow-stopping cavity is located inside the movable ring cylinder (205). A plugging head (207) is provided inside the flow-stopping cavity. After moving, the plugging head (207) contacts the inner wall of the conveying pipe (206) to block one end of the flow-stopping cavity.

4. The injection molding machine for ski binding parts according to claim 3, wherein: The plugging head (207) is fixedly connected to the inner side of the movable ring cylinder (205). The movable ring cylinder (205) is used to drive the plugging head (207) to move inside the conveying pipe (206). A flow-stopping screw (204) is rotatably installed on the outer wall of the insulation box (201). The flow-stopping screw (204) is connected to the movable ring cylinder (205) by a thread. The flow-stopping screw (204) is used to drive the movable ring cylinder (205) and the plugging head (207) to slide on the conveying pipe (206).

5. The injection molding machine for ski binding parts according to claim 1, wherein: A movable ring plate (211) is slidably installed on the outside of the support cylinder (210). The movable ring plate (211) is fixedly connected to one end of the extrusion rod (212). An extrusion motor (208) is fixedly installed on the outside of the support cylinder (210). An extrusion screw (209) is fixedly installed on the output shaft of the extrusion motor (208). The extrusion screw (209) is threadedly connected to the movable ring plate (211). The extrusion motor (208) and the extrusion screw (209) are used to drive the movable ring plate (211) and the extrusion rod (212) to move inside the support cylinder (210).

6. The injection molding machine for ski binding components of claim 1, wherein: The screw conveyor (30) includes a barrel (301) for heat insulation and heat preservation, and a feeding screw (302) for driving plastic material. A nozzle pipe (303) is provided at the end of the barrel (301) away from the melting and plasticizing equipment (40).

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