Plastic injection molding machine for plastic product processing and injection molding method thereof
By using a gas pressure box and an electric telescopic rod to drive the piston block in the injection molding machine, and using the exhaust groove and inclined pipe to push the block block, the problems of damage to the push rod and insufficient thrust during the release process of the existing injection molding machine are solved, and the problem of damage to the push rod and insufficient thrust during the release process of the existing injection molding machine is realized. Efficient and safe plastic products to release mold.
Patent Information
- Application Number
- CN202411338474.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-02-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the release process of existing injection molding machines, the push rod can easily damage the plastic shell, and insufficient thrust will cause the plastic to be difficult to disengage, which can easily cause deformation or penetration.
A plastic injection molding machine is designed, using a gas pressure box and an electric telescopic rod to drive the piston block to move, push the blocked block through the exhaust groove and beveled tube, forming an air outlet gap to promote product mold release.
It effectively avoids damage to the plastic shell by traditional push rods, improves mold release efficiency and product quality, and reduces the risk of plastic deformation and damage.
Smart Images
Figure CN119427681A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of plastic product processing equipment, in particular to a plastic injection molding machine and an injection molding method thereof for processing plastic products. Background Art
[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it eject and fill the mold cavity. Its working principle is similar to that of a syringe for injection. It injects the plasticized molten plastic into a closed mold cavity, and obtains the plastic product after solidification and shaping.
[0003] Since the molded plastic shells are relatively thin, they need to be demolded after cooling. However, the ejector rod currently used contacts the side wall of the finished plastic through the ejector rod, and the contact area is limited to a small area. When the plastic is not easy to be released, the thrust of the ejector rod can easily cause deformation of the plastic shell, or even penetrate the plastic shell and cause damage. In view of the above problems, the following solutions are proposed. Summary of the invention
[0004] In order to solve the above technical problems, the present invention provides a plastic injection molding machine for processing plastic products, comprising a base, a pressure box is fixedly connected to the side wall of the base, an electric telescopic rod is fixedly connected to the inner wall of the pressure box, a piston block is fixedly connected to the other end of the electric telescopic rod, a mold 1 is fixedly connected to the inner wall of the piston block, four guide columns are fixedly connected to the side wall of the piston block, a mold 2 is slidably connected to the outer wall of the guide column, a feed pipe is connected through the side wall of the mold 2, and an air inlet assembly is fixedly connected to the inner wall of the base;
[0005] An exhaust mechanism, the exhaust mechanism includes four exhaust grooves provided on the side wall of the piston block, the inner walls of the four exhaust grooves are fixedly connected with inclined tubes, the inner walls of the inclined tubes are fixedly connected with a cross 1, the inner walls of the inclined tubes are fixedly connected with a sliding tube, the inner walls of the through holes of the cross 1 are slidably connected with a sliding rod 1, the side walls of the sliding rod 1 are fixedly connected with a blocking block 1, and the side walls of the blocking block 1 are fixedly connected with a pushing spring 1;
[0006] The control mechanism includes an air outlet plate fixedly connected to the inner wall of the inclined tube, a rotating blocking block is rotatably connected to the inner wall of the through hole of the air outlet plate, a fixed block is fixedly connected to the end of the sliding rod 1 away from the blocking block 1, a prying rod 1 is rotatably connected to the side wall of the fixed block, four support frames are fixedly connected to the side wall of the cross 1, and a pushing assembly is fixedly connected to the side wall of the piston block. When in use, the base is installed in the required position and the power supply of the electric telescopic rod is turned on. At this time, the electric telescopic rod generates an extension force to force the mold 1 to contact the mold 2. After the raw material is injected into the feed pipe, the injection molding process of the equipment is completed. At this time, the electric telescopic rod generates a contraction force to drive the piston block to move along the inner wall of the air pressure box toward the base. Since a sealed environment is formed between the air pressure box and the piston block, during the movement of the piston block, the gas in the sealed environment will enter the interior of the inclined tube through the exhaust groove, and push the blocking block 1 to move outward along the inner wall of the sliding tube, so that an air outlet gap is formed between the blocking block 1 and the sliding tube, and the gas inside the inclined tube reaches Figure 5 The position of the prying rod 1 in the middle, as the blocking block moves inward, the blocking block drives the fixed block to move outward synchronously through the sliding rod 1, and the fixed block drives one end of the prying rod 1 to tilt upward, and the prying rod 1 is tilted, and the other end moves in the opposite direction. When the other end of the prying rod 1 rotates in the opposite direction, it will drive the rotating blocking block to rotate synchronously with the connection point as the center, so that a gap is formed between the rotating blocking block and the air outlet disk, and the internal air is discharged outward through the gap between the rotating blocking block and the air outlet disk, and acts on the product inside the mold 1, so that the product inside the mold 1 undergoes the demoulding process.
[0007] Preferably, the air intake assembly includes an air intake bevel tube fixedly connected to the inner wall of the through hole on the side wall of the air pressure box, a cross 2 is fixedly connected to the inner wall of the piston block, the side wall of the blocking block 1 is slidably connected to the inner wall of the sliding tube, and the outer wall of the piston block is slidably connected to the inner wall of the air pressure box.
[0008] Preferably, the air intake assembly also includes a sliding rod 2 slidably connected to the inner wall of the cross 2, a blocking block 2 is fixedly connected to the side wall of the sliding rod 2, a push spring 2 is fixedly connected to the side wall of the blocking block 2, and one end of the push spring 2 away from the blocking block 2 is fixedly connected to the side wall of the sliding rod 2.
[0009] Preferably, the air inlet component also includes a slide groove opened on the inner wall of the inclined tube, a blocking plate is slidably connected to the inner wall of the slide groove, a fixing plate is fixedly connected to the side wall of the piston block, a sliding rod is slidably connected to the inner wall of the through hole of the fixing plate, and the side wall of the sliding rod is fixedly connected to the side wall of the blocking plate. Utilizing the above-mentioned characteristics of air blowing and demoulding, a blocking plate is arranged inside the equipment, wherein, when the blocking block is not displaced, the piston block is a closed block, and when the piston block moves along the inner wall of the air pressure box, a high-pressure environment will be formed inside the air pressure box. At this time, the pressure generated by the high-pressure gas will not cause pressure on the blocking plate. When the blocking block is displaced and an air outlet gap is formed, the high-pressure gas inside the air pressure box will pass through the blocking plate The gap between the gas pressure box and the inclined tube is discharged outward, and the demoulding process is completed. At this time, since the external mold has been demoulded, the gas inside the air pressure box will be discharged outward through the gap, and the flowing gas will drive the blocking plate to move outward along the inner wall of the slide when it is ejected outward, and the inclined surface inside the inclined tube is restricted. During the movement of the blocking plate, the inside of the inclined tube will be gradually blocked. By setting a secondary blocking component, the corresponding inclined tube can be blocked again after the inclined tube completes blowing, so as to avoid the inclined tube completing the gas outlet. Since the gas flows outward through the inclined tube, the gas outlet of other inclined tubes is greatly reduced, and the outward thrust of the remaining inclined tubes is reduced, which affects the remaining discharge effect.
[0010] Preferably, the air intake assembly further comprises a pulling spring fixedly connected to the side wall of the fixing plate, and one end of the pulling spring away from the fixing plate is fixedly connected to the side wall of the blocking plate.
[0011] Preferably, the pushing assembly includes a fixed tube fixedly connected to the side wall of the piston block, four rotating grooves are opened on the side wall of the fixed tube, a prying rod 2 is rotatably connected to the inner wall of the rotating groove, the side wall of the prying rod 2 is rotatably connected to the side wall of the sliding rod, and the inner wall of the fixed tube is slidably connected to the sliding block. By utilizing the characteristic that the blocking plate is affected by the flowing gas to block the inclined surface tube, a sliding rod and a pushing assembly are arranged inside the equipment. When the blocking plate moves, the sliding rod moves outward synchronously and drives the corresponding prying rod 2 to move, presenting a Figure 9 When the end of the prying rod 2 close to the sliding rod moves to the right, the other end of the prying rod 2 will move to the left. As the piston block moves, the sliding block will contact the side wall of the contact block, forcing the sliding block to move to the right along the inner wall of the fixed tube, so that the sliding block contacts one end of the prying rod 2, forcing the contact end of the prying rod 2 to move to the right, while the other side drives the sliding rod to reset. Through the application of the above components, multiple components inside the equipment are reset, avoiding the blocking plate still blocking the inclined tube during subsequent use, affecting the pushing process of the equipment.
[0012] Preferably, the pushing assembly includes a contact block fixedly connected to the inner wall of the air pressure box, the side wall of the prying rod is rotatably connected to the inner wall of the support frame, the end of the prying rod away from the fixed block is rotatably connected to the side wall of the rotating blocking block, and the end of the pushing spring away from the blocking block is fixedly connected to the side wall of the cross. When the sliding block contacts the contact block, multiple blocking plates will synchronously release the blockage of the inclined tube. After a single inclined tube completes pushing, the blocking plate will block the inclined tube so that it can no longer transmit gas. As the electric telescopic rod drives the piston block to move, more inclined tubes are blocked by the corresponding The blocking plate blocks the material until the last bevel tube completes pushing. Then, multiple blocking plates will block the corresponding bevel tubes, and the piston block and the air pressure box will be sealed again. As the electric telescopic rod continues to shrink, the space in the sealed environment decreases, and the air pressure increases. Finally, the sliding block contacts the contact block, causing gaps between the multiple blocking plates and the bevel tubes. The high-pressure gas will be directly ejected outward through the multiple bevel tubes and the air outlet plate. If the material is stuck due to over-tight connection at this time, the high-pressure gas ejected outward will directly act on the outer wall of the material. The application of the above components can effectively reduce the risk of material jams.
[0013] An injection molding method of a plastic injection molding machine for processing plastic products comprises the following steps:
[0014] S1: When in use, install the base at the desired position and turn on the power of the electric telescopic rod. At this time, the electric telescopic rod generates an extension force to force mold 1 to contact mold 2;
[0015] S2: After the raw material is injected into the feed pipe, the injection molding process of the equipment is completed. At this time, the electric telescopic rod generates a contraction force, driving the piston block to move along the inner wall of the air pressure box toward the base;
[0016] S3: Since a sealed environment is formed between the air pressure box and the piston block, during the movement of the piston block, the gas in the sealed environment will enter the interior of the inclined tube through the exhaust groove and push the blocking block to move outward along the inner wall of the sliding tube.
[0017] The present invention has the following beneficial effects:
[0018] (1) In order to solve the problem that the ejection rod is easy to damage the plastic shell, the present invention provides an air pressure box inside the device. Due to the piston block, when in use, the base is installed in the desired position and the power of the electric telescopic rod is turned on. At this time, the electric telescopic rod generates an extension force to force mold one to contact mold two. After the raw material is injected into the feed pipe, the injection molding process of the device is completed. At this time, the electric telescopic rod generates a contraction force to drive the piston block to move along the inner wall of the air pressure box toward the base. Since a sealed environment is formed between the air pressure box and the piston block, during the movement of the piston block, the gas in the sealed environment will enter the interior of the inclined tube through the exhaust groove, and push the blocking block one to move outward along the inner wall of the sliding tube, so that an air outlet gap is formed between the blocking block one and the sliding tube. The gas inside the inclined tube reaches Figure 5 The position of the prying rod 1 in the middle, as the blocking block moves inward, the blocking block drives the fixed block to move outward synchronously through the sliding rod 1, and the fixed block drives one end of the prying rod 1 to tilt upward, and the prying rod 1 is tilted, and the other end moves in the opposite direction. When the other end of the prying rod 1 rotates in the opposite direction, it will drive the rotating blocking block to rotate synchronously with the connection point as the center, so that a gap is formed between the rotating blocking block and the air outlet disk, and the internal air is discharged outward through the gap between the rotating blocking block and the air outlet disk, and acts on the product inside the mold 1, so that the product inside the mold 1 undergoes a demoulding process. Through the application of the above components, the traditional ejection rod is removed, and it is not easy to cause deformation or even damage to the outer wall of the material.
[0019] (2) The present invention utilizes the above-mentioned characteristics of air blowing demoulding, and a blocking plate is arranged inside the equipment, wherein, when the blocking block is not displaced, the piston block is a closed block, and when the piston block moves along the inner wall of the air pressure box, a high-pressure environment will be formed inside the air pressure box. At this time, the pressure generated by the high-pressure gas will not cause pressure on the blocking plate. When the blocking block is displaced and an air outlet gap is formed, the high-pressure gas inside the air pressure box will be discharged to the outside through the gap between the blocking plate and the inclined tube, and the demoulding process is completed. At this time, since the external mold has been demoulded, the air pressure box The internal gas will be discharged outward through the gap, and the flowing gas will drive the blocking plate to move outward along the inner wall of the slide when it is ejected outward, and the inclined surface inside the inclined tube will be restricted. During the movement of the blocking plate, the inside of the inclined tube will be gradually blocked. By setting a secondary blocking component, the corresponding inclined tube can be blocked again after the inclined tube completes blowing, so as to avoid the inclined tube completing the gas outlet. Since the gas flows outward through the inclined tube, the gas outlet of other inclined tubes is greatly reduced, and the outward thrust of the remaining inclined tubes is reduced, which affects the remaining discharge effect.
[0020] (3) The present invention utilizes the characteristics of the blocking plate being affected by the flowing gas to block the inclined pipe, and sets a slide bar and a pusher assembly inside the device. When the blocking plate moves, the slide bar moves outward synchronously and drives the corresponding prying rod 2 to move, presenting the following Figure 9When the end of the prying rod 2 close to the sliding rod moves to the right, the other end of the prying rod 2 will move to the left. As the piston block moves, the sliding block will contact the side wall of the contact block, forcing the sliding block to move to the right along the inner wall of the fixed tube, so that the sliding block contacts one end of the prying rod 2, forcing the contact end of the prying rod 2 to move to the right, while the other side drives the sliding rod to reset. Through the application of the above components, multiple components inside the equipment are reset, avoiding the blocking plate still blocking the inclined tube during subsequent use, affecting the pushing process of the equipment.
[0021] (4) The present invention utilizes the characteristic that when the sliding block contacts the contact block, the multiple blocking plates will simultaneously release the blockage of the inclined tube. Among them, after a single inclined tube completes pushing the material, the blocking plate will block the inclined tube, making it unable to transmit gas. As the electric telescopic rod drives the piston block to move, more inclined tubes are blocked by the corresponding blocking plates after completing pushing the material. Until the last inclined tube completes pushing the material, the multiple blocking plates will block the corresponding inclined tubes, and the piston block and the air pressure box will be sealed again. As the electric telescopic rod continues to shrink, the space of the sealed environment decreases and the air pressure increases. Finally, the sliding block contacts the contact block, causing gaps to appear between the multiple blocking plates and the inclined tubes. The high-pressure gas will be directly ejected outward through the multiple inclined tubes and the gas outlet plate. If the material is stuck due to over-tight connection at this time, the high-pressure gas ejected outward will directly act on the outer wall of the material. Through the application of the above components, the occurrence of material jamming can be effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.
[0023] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;
[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention;
[0025] Figure 3 It is a schematic diagram of the internal components of the air pressure box of the present invention;
[0026] Figure 4 It is a cross-sectional schematic diagram of the exhaust mechanism of the present invention;
[0027] Figure 5 For the present invention Figure 4 A magnified schematic diagram of B;
[0028] Figure 6 For the present invention Figure 4A is an enlarged schematic diagram;
[0029] Figure 7 It is a cross-sectional schematic diagram of the air intake assembly of the present invention;
[0030] Figure 8 It is a cross-sectional schematic diagram of the pusher assembly of the present invention;
[0031] Fig. 9 For the present invention Figure 8 A magnified schematic diagram of middle C;
[0032] Fig.10 It is a schematic diagram of the working process of the present invention.
[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0034] In the figure: 1. Base; 11. Air pressure box; 12. Electric telescopic rod; 13. Piston block; 14. Mold 1; 15. Guide column; 16. Mold 2; 17. Feed pipe; 2. Exhaust mechanism; 21. Exhaust groove; 22. Inclined pipe; 23. Cross 1; 24. Sliding pipe; 25. Sliding rod 1; 26. Block 1; 27. Push spring 1; 3. Control mechanism; 31. Air outlet plate; 32. Rotating block; 33. Fixed block; 34, prying rod one; 35, support frame; 4, air intake assembly; 41, air intake ramp; 42, cross two; 43, sliding rod two; 44, blocking block two; 45, pushing spring two; 46, slide groove; 47, blocking plate; 48, fixed plate; 49, slide rod; 410, pulling spring; 5, pushing assembly; 51, fixed tube; 52, rotating groove; 53, prying rod two; 54, sliding block; 55, contact block. DETAILED DESCRIPTION
[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0036] For example, see Figure 1 - Figure 5The present invention is a plastic injection molding machine for processing plastic products, comprising a base 1, a pressure box 11 is fixedly connected to the side wall of the base 1, an electric telescopic rod 12 is fixedly connected to the inner wall of the pressure box 11, a piston block 13 is fixedly connected to the other end of the electric telescopic rod 12, a mold 14 is fixedly connected to the inner wall of the piston block 13, four guide columns 15 are fixedly connected to the side wall of the piston block 13, a mold 2 16 is slidably connected to the outer wall of the guide column 15, a feed pipe 17 is connected through the side wall of the mold 2 16, and an air inlet component 4 is fixedly connected to the inner wall of the base 1;
[0037] The exhaust mechanism 2 includes four exhaust grooves 21 provided on the side wall of the piston block 13, the inner walls of the four exhaust grooves 21 are fixedly connected with inclined tubes 22, the inner walls of the inclined tubes 22 are fixedly connected with a cross 23, the inner walls of the inclined tubes 22 are fixedly connected with a sliding tube 24, the inner walls of the through holes of the cross 23 are slidably connected with a sliding rod 25, the side walls of the sliding rod 25 are fixedly connected with a blocking block 26, and the side walls of the blocking block 26 are fixedly connected with a pushing spring 27;
[0038] The control mechanism 3 includes an air outlet plate 31 fixedly connected to the inner wall of the inclined tube 22, a rotating blocking block 32 is rotatably connected to the inner wall of the through hole of the air outlet plate 31, a fixed block 33 is fixedly connected to the end of the sliding rod 25 away from the blocking block 26, a prying rod 34 is rotatably connected to the side wall of the fixed block 33, four support frames 35 are fixedly connected to the side wall of the cross 23, and a pusher assembly 5 is fixedly connected to the side wall of the piston block 13. When in use, the base 1 is installed at the desired position and the power supply of the electric telescopic rod 12 is turned on. At this time, the electric telescopic rod 12 generates an extension force to force the mold After the tool 14 contacts the mold 2 16 and the raw material is injected into the feed pipe 17, the injection molding process of the equipment is completed. At this time, the electric telescopic rod 12 generates a contraction force, which drives the piston block 13 to move along the inner wall of the air pressure box 11 toward the base 1. Since a sealed environment is formed between the air pressure box 11 and the piston block 13, during the movement of the piston block 13, the gas in the sealed environment will enter the interior of the inclined tube 22 through the exhaust groove 21, and push the blocking block 1 26 to move outward along the inner wall of the sliding tube 24, so that an air outlet gap is formed between the blocking block 1 26 and the sliding tube 24, and the gas inside the inclined tube 22 reaches Figure 5The position of the prying rod 34 in the middle, as the blocking block 26 moves inward, the blocking block 26 drives the fixed block 33 to move outward synchronously through the sliding rod 25, and the fixed block 33 drives one end of the prying rod 34 to tilt upward. One end of the prying rod 34 tilts up and the other end moves in the opposite direction. When the other end of the prying rod 34 rotates in the opposite direction, it will drive the rotating blocking block 32 to rotate synchronously with the connection point as the center, so that a gap is formed between the rotating blocking block 32 and the air outlet plate 31, and the internal air is discharged outward through the gap between the rotating blocking block 32 and the air outlet plate 31, and acts on the product inside the mold 14, so that the product inside the mold 14 undergoes a demolding process.
[0039] For example 2, please refer to Figure 6 - Fig.10 The present invention is a plastic injection molding machine for processing plastic products. On the basis of the first embodiment, the air inlet component 4 includes an air inlet bevel tube 41 fixedly connected to the inner wall of the through hole on the side wall of the air pressure box 11, a cross 2 42 is fixedly connected to the inner wall of the piston block 13, the side wall of the blocking block 1 26 is slidably connected to the inner wall of the sliding tube 24, and the outer wall of the piston block 13 is slidably connected to the inner wall of the air pressure box 11.
[0040] The air intake assembly 4 also includes a sliding rod 43 slidably connected to the inner wall of the cross 42, a blocking block 44 is fixedly connected to the side wall of the sliding rod 43, a pushing spring 45 is fixedly connected to the side wall of the blocking block 44, and one end of the pushing spring 45 away from the blocking block 44 is fixedly connected to the side wall of the sliding rod 43.
[0041] The air inlet component 4 also includes a slide groove 46 opened on the inner wall of the inclined tube 22, and a blocking plate 47 is slidably connected to the inner wall of the slide groove 46, and a fixing plate 48 is fixedly connected to the side wall of the piston block 13. A sliding rod 49 is slidably connected to the inner wall of the through hole of the fixing plate 48, and the side wall of the sliding rod 49 is fixedly connected to the side wall of the blocking plate 47. Utilizing the above-mentioned characteristics of air blowing and demoulding, a blocking plate 47 is arranged inside the equipment, wherein, when the blocking block 26 is not displaced, the piston block 13 is a closed block, and when the piston block 13 moves along the inner wall of the air pressure box 11, a high-pressure environment will be formed inside the air pressure box 11. At this time, the pressure generated by the high-pressure gas will not cause pressure on the blocking plate 47. When the blocking block 26 is displaced and an air outlet gap is formed, the high-pressure gas inside the air pressure box 11 will pass The gas will be discharged outward through the gap between the blocking plate 47 and the inclined tube 22, and the demoulding process is completed. At this time, since the external mold has been demoulded, the gas inside the air pressure box 11 will be discharged outward through the gap, and the flowing gas will drive the blocking plate 47 to move outward along the inner wall of the slide groove 46 when it is ejected outward, and the inclined surface inside the inclined tube 22 will be restricted. During the movement of the blocking plate 47, the inside of the inclined tube 22 will be gradually blocked. By setting a secondary blocking component, the corresponding inclined tube 22 can be blocked again after the inclined tube 22 completes the blowing, so as to avoid the inclined tube 22 from flowing outward through the inclined tube 22 after the inclined tube 22 completes the gas outlet, which greatly reduces the gas outlet of other inclined tubes 22, reduces the outward thrust of the remaining inclined tubes 22, and affects the remaining discharge effect.
[0042] The air intake assembly 4 further includes a pulling spring 410 fixedly connected to the side wall of the fixing plate 48 , and one end of the pulling spring 410 away from the fixing plate 48 is fixedly connected to the side wall of the blocking plate 47 .
[0043] The pusher assembly 5 includes a fixed tube 51 fixedly connected to the side wall of the piston block 13, four rotating grooves 52 are opened on the side wall of the fixed tube 51, a prying rod 53 is rotatably connected to the inner wall of the rotating groove 52, the side wall of the prying rod 53 is rotatably connected to the side wall of the slide bar 49, and a sliding block 54 is slidably connected to the inner wall of the fixed tube 51. By utilizing the characteristics that the blocking plate 47 is affected by the flowing gas to block the inclined tube 22, a slide bar 49 and a pusher assembly 5 are arranged inside the equipment. When the blocking plate 47 moves, the slide bar 49 moves outward synchronously and drives the corresponding prying rod 53 to move, presenting a Figure 9When the end of the prying rod 53 close to the sliding rod 49 moves to the right, the other end of the prying rod 53 will move to the left. As the piston block 13 moves, the sliding block 54 will contact the side wall of the contact block 55, forcing the sliding block 54 to move to the right along the inner wall of the fixed tube 51, so that the sliding block 54 contacts one end of the prying rod 53, forcing the contact end of the prying rod 53 to move to the right, while the other side drives the sliding rod 49 to reset. Through the application of the above components, multiple components inside the equipment are reset, avoiding the blocking plate 47 still blocking the inclined tube 22 during subsequent use, thereby affecting the pushing process of the equipment.
[0044] The pushing assembly 5 includes a contact block 55 fixedly connected to the inner wall of the air pressure box 11, the side wall of the prying rod 34 is rotatably connected to the inner wall of the support frame 35, the end of the prying rod 34 away from the fixed block 33 is rotatably connected to the side wall of the rotating blocking block 32, and the end of the pushing spring 27 away from the blocking block 26 is fixedly connected to the side wall of the cross 23. When the sliding block 54 contacts the contact block 55, multiple blocking plates 47 will synchronously release the blockage of the inclined tube 22. After a single inclined tube 22 completes pushing, the blocking plate 47 will block the inclined tube 22, making it unable to transmit gas. As the electric telescopic rod 12 drives the piston block 13 to move, more inclined tubes 22 will be released after completing pushing. After that, it will be blocked by the corresponding blocking plates 47 until the last bevel tube 22 completes pushing the material, and multiple blocking plates 47 will block the corresponding bevel tubes 22, so that the piston block 13 and the air pressure box 11 are sealed again. As the electric telescopic rod 12 continues to shrink, the space of the sealed environment is reduced, and the air pressure increases. Finally, the sliding block 54 contacts the contact block 55, so that gaps appear between the multiple blocking plates 47 and the bevel tubes 22, and the high-pressure gas will be directly ejected outward through the multiple bevel tubes 22 and the air outlet plate 31. If the material is stuck due to over-tight connection at this time, the high-pressure gas ejected outward will directly act on the outer wall of the material. Through the application of the above components, the material jamming phenomenon can be effectively reduced.
[0045] The injection molding method of the injection molding device comprises the following steps:
[0046] S1: When in use, the base 1 is installed at a desired position, and the power of the electric telescopic rod 12 is turned on. At this time, the electric telescopic rod 12 generates an extension force, forcing the mold 1 14 to contact the mold 2 16;
[0047] S2: After the raw material is injected into the feed pipe 17, the injection molding process of the equipment is completed. At this time, the electric telescopic rod 12 generates a contraction force, driving the piston block 13 to move along the inner wall of the air pressure box 11 toward the base 1;
[0048] S3: Since a sealed environment is formed between the air pressure box 11 and the piston block 13, during the movement of the piston block 13, the gas in the sealed environment will enter the interior of the inclined tube 22 through the exhaust groove 21 and push the blocking block 26 to move outward along the inner wall of the sliding tube 24.
[0049] A specific application of this embodiment is: when in use, the base 1 is installed at the desired position, and the power of the electric telescopic rod 12 is turned on. At this time, the electric telescopic rod 12 generates an extension force, forcing the mold 14 to contact the mold 2 16. After the raw material is injected into the feed pipe 17, the injection molding process of the equipment is completed. At this time, the electric telescopic rod 12 generates a contraction force, driving the piston block 13 to move along the inner wall of the air pressure box 11 toward the base 1. Since a sealed environment is formed between the air pressure box 11 and the piston block 13, during the movement of the piston block 13, the gas in the sealed environment will enter the interior of the inclined tube 22 through the exhaust groove 21, and push the blocking block 1 26 to move outward along the inner wall of the sliding tube 24, so that an air outlet gap is formed between the blocking block 1 26 and the sliding tube 24, and the gas inside the inclined tube 22 reaches Figure 5 The position of the prying rod 34 in the middle, as the blocking block 26 moves, the blocking block 26 drives the fixed block 33 to move outward synchronously through the sliding rod 25, and the fixed block 33 drives one end of the prying rod 34 to tilt upward, one end of the prying rod 34 tilts, and the other end moves in the opposite direction. When the other end of the prying rod 34 rotates in the opposite direction, it will drive the rotating blocking block 32 to rotate synchronously with the connection point as the center, so that a gap is formed between the rotating blocking block 32 and the air outlet plate 31, and the internal air is discharged outward through the gap between the rotating blocking block 32 and the air outlet plate 31, and acts on the product inside the mold 14, so that the product inside the mold 14 undergoes a demolding process. Through the application of the above-mentioned components, the traditional ejection rod is removed, and it is not easy to cause deformation or even damage to the outer wall of the material.
[0050] The present invention utilizes the above-mentioned characteristics of air blowing demoulding, and a blocking plate 47 is arranged inside the equipment, wherein, when the blocking block 26 does not move, the piston block 13 is a closed block, and when the piston block 13 moves along the inner wall of the air pressure box 11, a high-pressure environment will be formed inside the air pressure box 11. At this time, the pressure generated by the high-pressure gas will not cause pressure on the blocking plate 47. When the blocking block 26 moves and forms an air outlet gap, the high-pressure gas inside the air pressure box 11 will be discharged to the outside through the gap between the blocking plate 47 and the bevel tube 22, and the demoulding process is completed. At this time, since the external mold has been demoulded, the air pressure box 11 is Part of the gas will be discharged outward through the gap, and the flowing gas will drive the blocking plate 47 to move outward along the inner wall of the slide groove 46 when it is ejected outward, and the inclined surface inside the inclined tube 22 is limited. During the movement of the blocking plate 47, the inside of the inclined tube 22 will be gradually blocked. By setting a secondary blocking component, the corresponding inclined tube 22 can be blocked again after the inclined tube 22 completes the blowing, so as to avoid the inclined tube 22 completing the gas outlet. Since the gas flows outward through the inclined tube 22, the gas outlet of other inclined tubes 22 is greatly reduced, and the outward thrust of the remaining inclined tubes 22 is reduced, which affects the remaining discharge effect.
[0051] Taking advantage of the fact that the blocking plate 47 is affected by the flowing gas and blocks the inclined tube 22, a slide bar 49 and a push assembly 5 are provided inside the device. When the blocking plate 47 moves, the slide bar 49 moves outward synchronously and drives the corresponding prying rod 2 53 to move, presenting a Figure 9When the end of the second lever 53 close to the slide bar 49 moves to the right, the other end of the second lever 53 will move to the left. As the piston block 13 moves, the sliding block 54 will contact the side wall of the contact block 55, forcing the sliding block 54 to move to the right along the inner wall of the fixed tube 51, so that the sliding block 54 contacts one end of the second lever 53, forcing the contact end of the second lever 53 to move to the right, while the other side drives the sliding bar 49 to reset. Through the application of the above-mentioned components, multiple components inside the equipment are reset to avoid the blocking plate 47 still blocking the inclined tube 22 during subsequent use, affecting the pushing process of the equipment. When the above-mentioned sliding block 54 contacts the contact block 55, multiple blocking plates 47 will synchronously release the blockage of the inclined tube 22. After a single inclined tube 22 completes pushing, the blocking plate 47 will block the inclined tube 22. , making it unable to transmit gas, and as the electric telescopic rod 12 drives the piston block 13 to move, more inclined tubes 22 are blocked by the corresponding blocking plates 47 after completing the pushing of materials, until the last inclined tube 22 completes the pushing of materials, and multiple blocking plates 47 will block the corresponding inclined tubes 22, so that the piston block 13 and the air pressure box 11 are sealed again. As the electric telescopic rod 12 continues to shrink, the space of the sealed environment is reduced, and the air pressure is increased. Finally, the sliding block 54 contacts the contact block 55, so that gaps appear between the multiple blocking plates 47 and the inclined tubes 22, and the high-pressure gas will be directly ejected outward through the multiple inclined tubes 22 and the gas outlet plate 31. If the material is stuck due to over-tight connection at this time, the high-pressure gas ejected outward will directly act on the outer wall of the material. Through the application of the above components, the material jamming phenomenon can be effectively reduced.
[0052] Among them, when the electric telescopic rod 12 is extended, the distance between the air pressure box 11 and the piston block 13 is expanded, and negative pressure is formed inside. The negative pressure will force the blocking block 2 44 and the sliding rod 2 43 to move along the inner wall of the through hole of the cross 2 42, so that the external air enters the air pressure box 11 through the gap between the blocking block 2 44 and the air inlet bevel tube 41, thereby completing the air replenishment.
[0053] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A plastic injection molding machine for processing plastic products, comprising a base (1), a pressure box (11) fixedly connected to the side wall of the base (1), an electric telescopic rod (12) fixedly connected to the inner wall of the pressure box (11), a piston block (13) fixedly connected to the other end of the electric telescopic rod (12), a mold 1 (14) fixedly connected to the inner wall of the piston block (13), four guide columns (15) fixedly connected to the side wall of the piston block (13), a mold 2 (16) slidably connected to the outer wall of the guide column (15), a feed pipe (17) through-connected to the side wall of the mold 2 (16), an air inlet assembly (4) fixedly connected to the inner wall of the base (1), characterized in that: Also includes: An exhaust mechanism (2), the exhaust mechanism (2) comprising four exhaust grooves (21) provided on the side wall of the piston block (13), the inner walls of the four exhaust grooves (21) being fixedly connected with a bevel tube (22), the inner walls of the bevel tube (22) being fixedly connected with a cross (23), the inner walls of the bevel tube (22) being fixedly connected with a sliding tube (24), the inner walls of the through holes of the cross (23) being slidably connected with a sliding rod (25), the side walls of the sliding rod (25) being fixedly connected with a blocking block (26), and the side walls of the blocking block (26) being fixedly connected with a push spring (27); A control mechanism (3), the control mechanism (3) comprising an air outlet plate (31) fixedly connected to the inner wall of the inclined tube (22), a rotating blocking block (32) rotatably connected to the inner wall of the through hole of the air outlet plate (31), a fixed block (33) fixedly connected to the end of the sliding rod (25) away from the blocking block (26), a prying rod (34) rotatably connected to the side wall of the fixed block (33), four support frames (35) fixedly connected to the side wall of the cross (23), and a pushing assembly (5) fixedly connected to the side wall of the piston block (13).
2. A plastic injection molding machine for processing plastic products according to claim 1, characterized in that: The air intake assembly (4) comprises an air intake bevel tube (41) fixedly connected to the inner wall of the through hole on the side wall of the air pressure box (11); a cross 2 (42) is fixedly connected to the inner wall of the piston block (13); the side wall of the blocking block 1 (26) is slidably connected to the inner wall of the sliding tube (24); and the outer wall of the piston block (13) is slidably connected to the inner wall of the air pressure box (11).
3. A plastic injection molding machine for processing plastic products according to claim 2, characterized in that: The air intake assembly (4) further comprises a sliding rod (43) slidably connected to the inner wall of the cross (42), a blocking block (44) being fixedly connected to the side wall of the sliding rod (43), a pushing spring (45) being fixedly connected to the side wall of the blocking block (44), and an end of the pushing spring (45) away from the blocking block (44) being fixedly connected to the side wall of the sliding rod (43).
4. A plastic injection molding machine for processing plastic products according to claim 3, characterized in that: The air intake assembly (4) further comprises a slide groove (46) provided on the inner wall of the inclined tube (22), a blocking plate (47) being slidably connected to the inner wall of the slide groove (46), a fixing plate (48) being fixedly connected to the side wall of the piston block (13), a sliding rod (49) being slidably connected to the inner wall of the through hole of the fixing plate (48), and a side wall of the sliding rod (49) being fixedly connected to the side wall of the blocking plate (47).
5. A plastic injection molding machine for processing plastic products according to claim 4, characterized in that: The air intake assembly (4) further comprises a pulling spring (410) fixedly connected to the side wall of the fixing plate (48), and one end of the pulling spring (410) away from the fixing plate (48) is fixedly connected to the side wall of the blocking plate (47).
6. A plastic injection molding machine for processing plastic products according to claim 5, characterized in that: The pusher assembly (5) comprises a fixed tube (51) fixedly connected to the side wall of the piston block (13); four rotation grooves (52) are provided on the side wall of the fixed tube (51); a second prying rod (53) is rotationally connected to the inner wall of the rotation groove (52); the side wall of the second prying rod (53) is rotationally connected to the side wall of the sliding rod (49); and a sliding block (54) is slidably connected to the inner wall of the fixed tube (51).
7. A plastic injection molding machine for processing plastic products according to claim 6, characterized in that: The pusher assembly (5) includes a contact block (55) fixedly connected to the inner wall of the air pressure box (11), the side wall of the prying rod (34) is rotatably connected to the inner wall of the support frame (35), the end of the prying rod (34) away from the fixed block (33) is rotatably connected to the side wall of the rotating blocking block (32), and the end of the push spring (27) away from the blocking block (26) is fixedly connected to the side wall of the cross (23).
8. A method for plastic injection molding of a plastic injection molding machine for processing plastic products, using the device for plastic product injection molding as claimed in claim 7, characterized in that: The following steps are included: S1: When in use, the base (1) is installed at a desired position and the power supply of the electric telescopic rod (12) is turned on. At this time, the electric telescopic rod (12) generates an extension force, forcing the mold 1 (14) to contact the mold 2 (16); S2: After the raw material is injected into the feed pipe (17), the injection molding process of the equipment is completed. At this time, the electric telescopic rod (12) generates a contraction force, driving the piston block (13) to move along the inner wall of the air pressure box (11) toward the base (1); S3: Since a sealed environment is formed between the air pressure box (11) and the piston block (13), during the movement of the piston block (13), the gas in the sealed environment will enter the interior of the inclined tube (22) through the exhaust groove (21) and push the blocking block 1 (26) to move outward along the inner wall of the sliding tube (24).
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