Anti-blocking self-through plastic molding device

Abstract

The invention discloses an anti-blocking self-passing type plastic molding device, which relates to the technical field of plastic product processing, and comprises a base station, a screw conveying component and a mold closing component, and a material pipe is fixedly mounted at a feeding hole in the upper part of the screw conveying component. In the working process of the injection molding machine, the driving motor drives the sliding barrel to rotate, through cooperation of the sliding column and the spiral groove, the pushing disc effectively pushes plastic materials in the material pipe, softening and blocking are avoided, meanwhile, the cutting knife is used for refining material particles, the pushing difficulty is reduced, and the production efficiency is improved; materials are screened through cooperation of screening holes and a blocking plate, large or unqualified materials are removed, it is ensured that the granularity of the raw materials is uniform, in the pushing process, a connecting rod and a sealing plate are matched, the interior of a material pipe is sealed after pushing is completed, the material pressure at the screening holes is increased through the double effects of sealing and extruding, and material circulation is promoted; the screening stability and the production quality are improved, and the finished product quality of plastic products is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of plastic product processing, in particular to an anti-blocking self-flowing plastic molding device. 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. The working principle of the injection molding machine is to heat and melt solid plastic particles (such as PE, PP, ABS, PA, PC, etc.), inject them into the closed mold cavity under high pressure and high speed conditions, and take out the product after cooling and shaping. In this process, the injection molding machine plays a key role in injecting molten plastic into the mold and controlling the molding process.

[0003] The general process of using an injection molding machine is to pour the measured raw materials into the hopper of the injection molding machine. The hopper is usually located at the top of the injection unit. The raw materials then fall from the material tube into the screw conveying system by gravity, and are then conveyed to the heating area by the screw for heating and softening to form a uniform melt. When the raw materials are completely melted, the injection molding machine will perform a series of preparatory work, including adjusting parameters such as injection pressure, speed and position. Finally, the injection screw will quickly push the molten plastic to the injection nozzle and enter the mold cavity through the nozzle of the mold.

[0004] However, in actual work, during the melting process of plastic, high-temperature gas will be generated. Due to the setting of the screw, the high-temperature gas will discharge high-temperature air to the outside, and the discharged air will be discharged from the conical funnel of the injection molding machine, making the plastic particles accumulated in the material pipe easy to be preheated and softened in advance under the action of high-temperature air, and thus stick together, causing the material pipe to be blocked, thereby affecting the continuous production of the injection molding machine and reducing production efficiency. In addition, long-term accumulation and adhesion may be scorched due to high temperature, generating harmful gases and smoke, and causing corrosion and damage to the internal parts of the injection molding machine. Summary of the invention

[0005] The object of the present invention is to provide an anti-blocking self-flowing plastic molding device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an anti-blocking self-flowing plastic molding device, comprising a base, a screw conveying component, and a mold clamping component, wherein a material pipe is fixedly installed at the upper feed inlet of the screw conveying component, and a hopper is fixedly connected to the top of the material pipe, and a push plate is slidably connected to the inner wall of the material pipe;

[0007] The inner wall of the hopper is provided with an extrusion and dredging mechanism, so that when the injection molding machine is working, the plastic material in the material pipe can be pushed and cut, thereby avoiding the softening and clogging of the plastic material in the material pipe;

[0008] The push plate is provided with a screening and separation mechanism inside, so that the plastic material can be screened and separated when the injection molding machine is working, so as to facilitate better processing performance during subsequent mixing and molding;

[0009] The inner wall of the hopper is provided with an auxiliary closing mechanism, so that when the injection molding machine is working, the inside of the material pipe can be closed to enhance the material flow effect at the screening location.

[0010] Preferably, the extrusion and dredging mechanism includes a fixed cylinder, and a driving motor is fixedly installed on the top of the fixed cylinder, a support rod is fixedly connected to the outer wall of the top end of the fixed cylinder at an equal distance, and the other end of the support rod is fixedly connected to the inner wall of the hopper, one end of the output shaft of the driving motor is fixedly connected to the driving rod, the inner wall of the fixed cylinder is slidably connected with a slide cylinder, the inner wall of the slide cylinder is provided with a connecting groove corresponding to the driving rod, and the outer wall of the driving rod slides in fit with the inner wall of the connecting groove, the outer wall of the slide cylinder is fixedly connected with a slide column, the outer wall of the fixed cylinder is provided with a spiral groove corresponding to the slide column, and the outer wall of the slide column slides in fit with the inner wall of the spiral groove, the bottom of the slide cylinder is fixedly connected to the top center of the pushing disk, and the bottom end outer wall of the slide cylinder is provided with an annular groove corresponding to the auxiliary sealing mechanism.

[0011] Preferably, the screening and separation mechanism includes screening holes, and the screening holes are equidistantly arranged through the interior of the pushing disk, a circular groove is equidistantly arranged at the bottom of the pushing disk corresponding to the screening holes, and a cavity is arranged on the inner wall of the circular groove, a sliding rod is arranged on the inner wall of the cavity, and the outer wall of the sliding rod slides in fit with the inner wall of the circular groove, a sealing plate is fixedly connected to the bottom of the sliding rod corresponding to the screening hole, a limiting block is fixedly connected to the top of the sliding rod, and a spring 1 is fitted on the outer wall of the sliding rod, one end of the spring 1 is fixedly connected to the inner wall of the cavity, and the other end of the spring 1 is fixedly connected to an end face of the limiting block facing the sealing plate, and a cutting knife is fixedly connected to the bottom of the sealing plate at equidistant intervals.

[0012] Preferably, the outer wall of the limit block slides in contact with the inner wall of the cavity, the blocking plate forms a telescopic structure through a slide rod and a spring, and the top of the blocking plate is squeezed and set on the bottom of the pushing disk by a spring.

[0013] Preferably, the auxiliary closing mechanism includes a slip ring, and the inner wall of the slip ring fits and slides with the inner wall of the ring groove, the outer wall of the slip ring is hinged with a connecting rod at equal distances, and the other end of the connecting rod is hinged with a closing plate, the interior of the hopper is provided with limiting grooves at equal distances corresponding to the closing plate, and the outer wall of the closing plate fits and slides with the inner wall of the limiting groove, the outer wall of the slide cylinder is fixedly connected with a fixed plate, and the outer wall of the fixed plate is provided with a circulation groove corresponding to the closing plate, the outer walls of both sides of the closing plate fit and slide with the inner wall of the circulation groove, the top of the closing plate is provided with a fixing hole, the inner wall of the limiting groove is provided with a groove, and the inner wall of the groove is fixedly connected with a spring 2, and the other end of the spring 2 is fixedly connected with a fixing column corresponding to the fixing hole.

[0014] Preferably, the bottom of the fixing column is in a truncated cone shape, and the fixing column forms a telescopic structure with the groove through the second spring.

[0015] Preferably, the fixing column is arranged on the top of the closing plate by being squeezed by a second spring.

[0016] Preferably, a fixing plate is fixedly connected to the bottom of one end of the closing plate away from the slide, and a spring three is fixedly connected to the outer wall of the fixing plate facing the slide, and the other end of the spring three is fixedly connected to the outer wall of the hopper.

[0017] Preferably, the screw conveying component is fixedly mounted on the top of the base, and the clamping component is fixedly mounted on the top of the base.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. During the operation of the injection molding machine, the drive motor can drive the slide to rotate, so that the push disk can be driven to push the bonded plastic material in the material tube with the cooperation of the slide column and the spiral groove, avoiding the softening and clogging of the plastic material in the material tube, ensuring the smooth operation of the injection molding machine. At the same time, the push disk can be pushed by rotation, so that the plastic material can be cut by several cutting knives to refine the material particles and reduce the presence of large or sticky materials, thereby reducing the difficulty of pushing. The synergistic effect of the push disk and the blade can more effectively push the plastic material into the injection molding machine, thereby improving production efficiency.

[0020] 2. During the operation of the injection molding machine, the screening hole and the blocking plate can be used to screen the plastic material when the push plate rises and resets. This can remove large pieces of material or materials that do not meet the requirements, ensure uniform particle size of the raw materials, and facilitate better processing performance during subsequent mixing and molding. At the same time, the rotation of the push plate can change the position of large pieces of material relative to the screening hole to avoid direct blocking of the screening hole, and can drive the material to flow around the screening hole, increasing the chance of material passing through the screening hole, thereby improving production quality.

[0021] 3. During the operation of the injection molding machine, the push plate can be pushed by the connecting rod and the closing plate, so that when the pushing is completed, the inside of the material tube can be closed by the merging of the closing plate. Therefore, when the push plate rises for screening, the material pressure at the screening hole can be increased through the dual effects of sealing and extrusion, which promotes the material to pass through the screening hole, enhances the material flow effect of the screening hole, improves the screening stability, and thus ensures the finished product quality of the plastic product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the internal structure of the hopper and the material pipe of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the extrusion dredging mechanism of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the screening and separation mechanism of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the first part of the auxiliary sealing mechanism of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the second part of the auxiliary sealing mechanism of the present invention.

[0029] In the figure: 1, base; 2, screw conveying component; 3, clamping component; 4, material pipe; 5, hopper; 6, push plate; 7, extrusion dredging mechanism; 701, fixed cylinder; 702, driving motor; 703, support rod; 704, driving rod; 705, slide cylinder; 706, connecting groove; 707, slide column; 708, spiral groove; 709, ring groove; 8, screening and separation mechanism; 801, screening hole; 802, circular groove; 803 , cavity; 804, sliding rod; 805, sealing plate; 806, limiting block; 807, spring one; 808, cutting knife; 9, auxiliary closing mechanism; 901, slip ring; 902, connecting rod; 903, closing plate; 904, limiting groove; 905, fixing plate; 906, circulation groove; 907, fixing hole; 908, groove; 909, spring two; 910, fixing column; 911, fixing plate; 912, spring three. DETAILED DESCRIPTION

[0030] 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.

[0031] For example, see Figure 1-7 The present invention provides an anti-clogging self-flowing plastic molding device, comprising a base 1, a screw conveying component 2, and a mold clamping component 3. A material pipe 4 is fixedly installed on the upper feed inlet of the screw conveying component 2, and a hopper 5 is fixedly connected to the top of the material pipe 4. A push plate 6 is slidably connected to the inner wall of the material pipe 4.

[0032] The inner wall of the hopper 5 is provided with an extrusion and dredging mechanism 7.

[0033] Furthermore, the extrusion and dredging mechanism 7 includes a fixed cylinder 701, and a driving motor 702 is fixedly installed on the top of the fixed cylinder 701, a support rod 703 is fixedly connected to the outer wall of the top of the fixed cylinder 701 at an equal distance, and the other end of the support rod 703 is fixedly connected to the inner wall of the hopper 5, one end of the output shaft of the driving motor 702 is fixedly connected to the driving rod 704, and the inner wall of the fixed cylinder 701 is slidably connected to the sliding cylinder 705, and the inner wall of the sliding cylinder 705 corresponds to the opening of the driving rod 704. A connecting groove 706 is provided, and the outer wall of the driving rod 704 fits and slides with the inner wall of the connecting groove 706, the outer wall of the slide cylinder 705 is fixedly connected with a slide column 707, the outer wall of the fixed cylinder 701 is provided with a spiral groove 708 corresponding to the slide column 707, and the outer wall of the slide column 707 fits and slides with the inner wall of the spiral groove 708, the bottom of the slide cylinder 705 is fixedly connected to the top center of the pushing disk 6, and the outer wall of the bottom end of the slide cylinder 705 is provided with an annular groove 709 corresponding to the auxiliary closing mechanism 9.

[0034] In this embodiment, during the operation of the injection molding machine, the measured raw materials are first poured into the hopper 5, and then fall into the screw conveying component 2 through the material pipe 4. At this time, the fallen plastic material is transported to the heating position for softening by the screw conveying component 2, and after softening, it is transported into the clamping component 3 for injection molding. Furthermore, the working principle of the injection molding machine is the existing technology and will not be further described here.

[0035] Then, during the operation of the injection molding machine, the output shaft at one end of the driving motor 702 is fixedly connected to the driving rod 704, and the inner wall of the fixed cylinder 701 is slidably connected to the sliding cylinder 705, and the inner wall of the sliding cylinder 705 is provided with a connecting groove 706 corresponding to the driving rod 704. At the same time, the outer wall of the driving rod 704 slides in contact with the inner wall of the connecting groove 706, so that the driving motor 702 can drive the sliding cylinder 705 to rotate through the driving rod 704.

[0036] Then, a slide post 707 is fixedly connected to the outer wall of the slide cylinder 705, and a spiral groove 708 is penetrated through the outer wall of the fixed cylinder 701 corresponding to the slide post 707, and the outer wall of the slide post 707 slides in contact with the inner wall of the spiral groove 708, and the bottom of the slide cylinder 705 is fixedly connected to the top center of the push disk 6, so that the spiral groove 708 and the slide post 707 can cooperate to make the slide cylinder 705 move downward during the rotation process, thereby driving the push disk 6 to move downward on the inner wall of the material pipe 4, and then pushing the bonded plastic material in the material pipe 4, avoiding the softening and blockage of the plastic material in the material pipe 4, and at the same time, the inner wall of the material pipe 4 can be cleaned by the push disk 6 to ensure the smooth operation of the injection molding machine.

[0037] Then, cutting knives 808 are fixedly connected at equal distances to the bottom of the blocking plate 805, so that during the descending process of the pushing disk 6, the pushing disk 6 can be rotated to drive several cutting knives 808 to cut the pushed plastic material, refine the material particles, and reduce the presence of large or sticky materials, thereby reducing the difficulty of pushing. The synergistic effect of the pushing disk 6 and the blade can more effectively push the plastic material into the screw conveying component 2.

[0038] As described above, during the operation of the injection molding machine, the slide 705 can be driven to rotate by the driving motor 702, so that the push disk 6 can be driven to push the bonded plastic material in the material tube 4 under the cooperation of the slide column 707 and the spiral groove 708, thereby avoiding the softening and clogging of the plastic material in the material tube 4, ensuring the smooth operation of the injection molding machine, and at the same time, the push disk 6 can be rotated to push the plastic material, so that the plastic material can be cut by a plurality of cutting knives 808 to refine the material particles and reduce the presence of large or sticky materials, thereby reducing the difficulty of pushing. The synergistic effect of the push disk 6 and the blade can more effectively push the plastic material into the injection molding machine, thereby improving production efficiency.

[0039] Embodiment 2: Based on the above embodiment, a screening and separation mechanism 8 is provided inside the pushing disk 6 .

[0040] Furthermore, the screening and separation mechanism 8 includes screening holes 801, and the screening holes 801 are equidistantly arranged through the interior of the pushing disk 6, a circular groove 802 is equidistantly arranged at the bottom of the pushing disk 6 corresponding to the screening holes 801, and a cavity 803 is arranged on the inner wall of the circular groove 802, a sliding rod 804 is arranged on the inner wall of the cavity 803, and the outer wall of the sliding rod 804 slides in contact with the inner wall of the circular groove 802, a sealing plate 805 is fixedly connected to the bottom of the sliding rod 804 corresponding to the screening hole 801, a limiting block 806 is fixedly connected to the top of the sliding rod 804, and a spring 807 is fitted on the outer wall of the sliding rod 804, one end of the spring 807 is fixedly connected to the inner wall of the cavity 803, and the other end of the spring 807 is fixedly connected to an end face of the limiting block 806 facing the sealing plate 805, and a cutting knife 808 is fixedly connected to the bottom of the sealing plate 805 at an equal distance.

[0041] In this embodiment, screening holes 801 are equidistantly penetrated through the interior of the pushing disk 6, and circular grooves 802 are equidistantly provided at the bottom of the pushing disk 6 corresponding to the screening holes 801, and a cavity 803 is provided on the inner wall of the circular groove 802, and a sliding rod 804 is provided on the inner wall of the cavity 803, and the outer wall of the sliding rod 804 slides in contact with the inner wall of the circular groove 802, and a blocking plate 805 is fixedly connected to the bottom of the sliding rod 804 corresponding to the screening holes 801, so that when the pushing disk 6 descends, the pushing disk 6 and the plastic material are squeezed against each other, so that the blocking plate 805 is attached to the bottom of the pushing disk 6, that is, a plurality of screening holes 801 are blocked, thereby pushing the plastic material.

[0042] When the pushing of the pushing disk 6 is completed, the remaining plastic material in the hopper 5 falls on the top surface of the pushing disk 6 under the action of gravity. At this time, the driving motor 702 will drive the pushing disk 6 to rise and reset to wait for the next pushing. During this process, the remaining plastic material will pass through the screening hole 801 at the top of the pushing disk 6 and squeeze the blocking plate 805. At this time, since the pushing disk 6 is in an ascending stage, the plastic material that meets the size of the screening hole 801 can squeeze the blocking plate 805 and descend, so that the top of the blocking plate 805 is no longer in contact with the bottom surface of the pushing disk 6, thereby realizing the screening function of the plastic material, being able to remove large pieces or materials that do not meet the requirements, ensuring that the particle size of the raw materials pushed next time is uniform, and facilitating better processing performance during subsequent mixing and molding.

[0043] At the same time, by utilizing the rotational motion of the push disk 6, the rotating push disk 6 can continuously change the position of the bulk material relative to the screening hole 801. When the material is likely to block the screening hole 801 due to its shape or size, the rotational motion will move it to other positions, thereby avoiding direct blockage. At the same time, as the material flows, more particles have the opportunity to pass through the screening hole 801, especially for those materials with irregular shapes or difficult to screen, the rotation function provides more screening opportunities.

[0044] Then, the limiting block 806 is fixedly connected through the top of the sliding rod 804, and a spring 807 is provided on the outer wall of the sliding rod 804, and one end of the spring 807 is fixedly connected to the inner wall of the cavity 803, and the other end of the spring 807 is fixedly connected to an end surface of the limiting block 806 facing the blocking plate 805, so that when the pushing disk 6 returns to its original position, the restoring elastic force of the spring 807 can make the blocking plate 805 rise and re-block the screening hole 801 to prepare for the pushing step.

[0045] As described above, during the operation of the injection molding machine, the screening hole 801 can cooperate with the sealing plate 805, so that when the push disk 6 rises and resets, the screening hole 801 can be used to realize the screening function of the plastic material, and large pieces or materials that do not meet the requirements can be removed to ensure the uniform particle size of the raw materials, which is convenient for better processing performance during subsequent mixing and molding. At the same time, with the rotation of the push disk 6, the position of large pieces of material relative to the screening hole 801 can be changed, thereby avoiding direct blocking of the screening hole 801, and the material can be driven to flow around the screening hole 801, increasing the chance of material passing through the screening hole 801, thereby improving production quality.

[0046] Embodiment 3: Based on the above embodiment, an auxiliary closing mechanism 9 is provided on the inner wall of the hopper 5 .

[0047] Furthermore, the auxiliary closing mechanism 9 includes a slip ring 901, and the inner wall of the slip ring 901 fits and slides with the inner wall of the annular groove 709, the outer wall of the slip ring 901 is hinged with a connecting rod 902 at an equal distance, and the other end of the connecting rod 902 is hinged with a closing plate 903, and the interior of the hopper 5 is provided with a limiting groove 904 at an equal distance corresponding to the closing plate 903, and the outer wall of the closing plate 903 fits and slides with the inner wall of the limiting groove 904, and the outer wall of the slide cylinder 705 is fixedly connected There is a fixed plate 905, and the outer wall of the fixed plate 905 is provided with a circulation groove 906 corresponding to the closing plate 903, the outer walls on both sides of the closing plate 903 slide in contact with the inner walls of the circulation groove 906, the top of the closing plate 903 is provided with a fixing hole 907 corresponding to the top, the inner wall of the limiting groove 904 is provided with a groove 908, and the inner wall of the groove 908 is fixedly connected with a spring 909, and the other end of the spring 909 is fixedly connected with a fixing column 910 corresponding to the fixing hole 907.

[0048] In this embodiment, during the pushing process of the pushing disk 6, the inner wall of the slip ring 901 slides in contact with the inner wall of the annular groove 709, and the outer wall of the slip ring 901 is hinged with a connecting rod 902 at equal distances, and the other end of the connecting rod 902 is hinged with a closing plate 903. At the same time, the interior of the hopper 5 is provided with limiting grooves 904 at equal distances corresponding to the closing plate 903, and the outer wall of the closing plate 903 slides in contact with the inner wall of the limiting groove 904, and the outer wall of the sliding cylinder 705 is fixedly connected with a fixed disk 905. At the beginning of pushing, the slip ring 901 will be located on the upper inner wall of the annular groove 709, so that when the sliding cylinder 705 descends, the slip ring 901 can be synchronously driven to move downward. At this time, the limiting groove 904 restricts the closing plate 903, so that the four closing plates 903 can be synchronously approached to each other under the drive of multiple connecting rods 902.

[0049] When the pushing plate 6 is lowered and pushed, a flow groove 906 is opened through the outer wall of the fixed plate 905 corresponding to the closing plate 903, and the outer walls on both sides of the closing plate 903 slide in contact with the inner walls of the flow groove 906, so that the plastic material can flow through the flow groove 906 when it is not closed. When the pushing plate 6 is lowered and pushed, the multiple closing plates 903 will cooperate with the fixed plate 905 to close the material tube 4. At this time, the slide cylinder 705 starts to rise. At this time, the slip ring 901 is still located on the upper inner wall of the annular groove 709, so that the slide cylinder 705 does not drive the slip ring 901 to rise during the rising process. At this time, a fixing hole 907 is opened at the top of the closing plate 903, and the limit groove 90 4 is provided with a groove 908, and the inner wall of the groove 908 is fixedly connected with a second spring 909, and the other end of the second spring 909 is fixedly connected with a fixing column 910 corresponding to the fixing hole 907, so that when a plurality of closing plates 903 are combined with each other, the fixing column 910 can be driven by the second spring 909 to snap into the fixing hole 907, so as to fix the plurality of closing plates 903, so that when the push disk 6 is in the upward process, the material tube 4 is still in a closed state, so that when the push disk 6 is raised for screening, the material pressure at the screening hole 801 can be increased through the dual effects of sealing and squeezing, so as to promote the material to pass through the screening hole 801, enhance the material flow effect of the screening hole 801, and improve the screening stability.

[0050] Then, when the push plate 6 is about to rise and reset, that is, when the slip ring 901 is located at the lower inner wall of the annular groove 709, the slide cylinder 705 will force the slip ring 901 to rise a certain distance, so that the multiple closing plates 903 are separated from each other by a certain distance, so that the fixing column 910 slips out of the fixing hole 907, and at this time, a fixing plate 911 is fixedly connected to the bottom of the end of the closing plate 903 away from the slide cylinder 705, and a spring three 912 is fixedly connected to the outer wall of the fixing plate 911 facing the slide cylinder 705, and the other end of the spring three 912 is fixedly connected to the outer wall of the hopper 5, so that the four closing plates 903 can be driven to return to the initial position through the reset elastic force of the spring three 912, so that the slip ring 901 is located at the upper inner wall of the annular groove 709 again, completing the overall reset.

[0051] As described above, during the operation of the injection molding machine, the connecting rod 902 and the closing plate 903 can cooperate with each other during the pushing process of the pushing plate 6, so that when the pushing is completed, the inside of the material tube 4 can be closed by combining the closing plate 903, so that when the pushing plate 6 rises for screening, the material pressure at the screening hole 801 can be increased through the dual effects of sealing and squeezing, and the material can be promoted to pass through the screening hole 801, thereby enhancing the material flow effect of the screening hole 801, improving the screening stability, and thus ensuring the finished product quality of the plastic product.

[0052] Working principle: During the operation of the injection molding machine, the driving motor 702 can drive the slide 705 to rotate through the driving rod 704. The spiral groove 708 cooperates with the slide post 707, so that the slide 705 can move downward during the rotation process, thereby driving the push plate 6 to move downward on the inner wall of the material pipe 4, and then the bonding plastic material in the material pipe 4 can be pushed, thereby avoiding the softening and clogging of the plastic material in the material pipe 4. At the same time, the inner wall of the material pipe 4 can be cleaned by the push plate 6 to ensure the smooth operation of the injection molding machine.

[0053] Then, during the descending process of the push disk 6, the push disk 6 can be used to rotate and push, driving a plurality of cutting knives 808 to cut the pushed plastic material, refine the material particles, reduce the presence of large pieces or adhesion materials, thereby reducing the difficulty of pushing, and using the synergistic effect of the push disk 6 and the blades, the plastic material can be more effectively pushed into the screw conveying component 2;

[0054] Then, when the pushing disk 6 descends, the pushing disk 6 and the plastic material squeeze each other, so that the blocking plate 805 fits the bottom of the pushing disk 6, that is, several screening holes 801 are blocked to realize the pushing of the plastic material. When the pushing of the pushing disk 6 is completed, the remaining plastic material in the hopper 5 falls on the top surface of the pushing disk 6 under the action of gravity. At this time, the driving motor 702 will drive the pushing disk 6 to rise and reset to wait for the next pushing. In this process, the remaining plastic material will pass through the screening hole 801 at the top of the pushing disk 6 and squeeze the blocking plate 805. At this time, since the pushing disk 6 is in the ascending stage, the plastic material that meets the size of the screening hole 801 can squeeze the blocking plate 805 and descend, so that the top of the blocking plate 805 is no longer in contact with the bottom surface of the pushing disk 6, thereby realizing the screening function of the plastic material.

[0055] Then, the push plate 6 is rotated to continuously change the position of the bulk material relative to the screening hole 801. When the material may block the screening hole 801 due to its shape or size, the rotation action will move it to other positions to avoid direct blockage. At the same time, as the material flows, more particles have the opportunity to pass through the screening hole 801. In particular, the rotation function provides more screening opportunities for materials with irregular shapes or difficult to screen.

[0056] Next, when the slide 705 descends, the slip ring 901 can be synchronously driven to move downward. At this time, the limiting groove 904 restricts the closing plate 903, so that the four closing plates 903 can be synchronously moved close to each other under the drive of the multiple connecting rods 902. When the pushing plate 6 is pushed down, the multiple closing plates 903 will cooperate with the fixed plate 905 to close the material pipe 4. At this time, the slide 705 starts to rise. At this time, the slip ring 901 is still located on the upper inner wall of the annular groove 709, so that the slide 705 does not move during the rising process. The slip ring 901 is driven to rise, and when multiple closed plates 903 are merged with each other, the fixing column 910 can be driven by the spring 2 909 to be stuck in the fixing hole 907, so that the multiple closed plates 903 are fixed, so that when the push plate 6 is in the upward process, the material tube 4 is still in a closed state, so that when the push plate 6 rises for screening, the material pressure at the screening hole 801 can be increased through the dual effects of sealing and extrusion, which promotes the material to pass through the screening hole 801, enhances the material flow effect of the screening hole 801, and improves the screening stability.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-clogging self-contained plastic molding device, comprising a base (1), a screw conveying component (2), and a mold clamping component (3), characterized in that: A material pipe (4) is fixedly installed at the upper feed port of the screw conveying component (2), and a hopper (5) is fixedly connected to the top of the material pipe (4), and a push plate (6) is slidably connected to the inner wall of the material pipe (4); The inner wall of the hopper (5) is provided with an extrusion and dredging mechanism (7) to push and cut the plastic material in the material pipe (4) when the injection molding machine is working; The pushing plate (6) is provided with a screening and separation mechanism (8) inside to screen and separate the plastic material; The inner wall of the hopper (5) is provided with an auxiliary sealing mechanism (9) to seal the interior of the material pipe (4).

2. The anti-blocking self-flowing plastic molding device according to claim 1, characterized in that: The squeezing and dredging mechanism (7) comprises a fixed cylinder (701), and a driving motor (702) is fixedly installed on the top of the fixed cylinder (701), a support rod (703) is fixedly connected to the outer wall of the top of the fixed cylinder (701) at an equal distance, and the other end of the support rod (703) is fixedly connected to the inner wall of the hopper (5), one end of the output shaft of the driving motor (702) is fixedly connected to the driving rod (704), the inner wall of the fixed cylinder (701) is slidably connected to a sliding cylinder (705), and the inner wall of the sliding cylinder (705) is provided with a connection corresponding to the driving rod (704). The outer wall of the driving rod (704) and the inner wall of the connecting groove (706) are fitted and slid together. The outer wall of the slide cylinder (705) is fixedly connected with a slide column (707). The outer wall of the fixed cylinder (701) is provided with a spiral groove (708) corresponding to the slide column (707). The outer wall of the slide column (707) and the inner wall of the spiral groove (708) are fitted and slid together. The bottom of the slide cylinder (705) is fixedly connected to the top center of the pushing disk (6). The outer wall of the bottom end of the slide cylinder (705) is provided with an annular groove (709) corresponding to the auxiliary sealing mechanism (9).

3. The anti-blocking self-flowing plastic molding device according to claim 2, characterized in that: The screening and separation mechanism (8) comprises screening holes (801), and the screening holes (801) are equidistantly arranged in the interior of the push plate (6), the bottom of the push plate (6) is provided with circular grooves (802) equidistantly arranged corresponding to the screening holes (801), and the inner wall of the circular groove (802) is provided with a cavity (803), the inner wall of the cavity (803) is provided with a sliding rod (804), and the outer wall of the sliding rod (804) is fitted and slidably engaged with the inner wall of the circular groove (802), and the bottom of the sliding rod (804) corresponds to the screening hole (801). The selection hole (801) is fixedly connected to a blocking plate (805), the top of the sliding rod (804) is fixedly connected to a limiting block (806), and a spring (807) is provided on the outer wall of the sliding rod (804), one end of the spring (807) is fixedly connected to the inner wall of the cavity (803), and the other end of the spring (807) is fixedly connected to an end surface of the limiting block (806) facing the blocking plate (805), and a cutting knife (808) is fixedly connected to the bottom of the blocking plate (805) at an equal distance.

4. The anti-blocking self-flowing plastic molding device according to claim 3, characterized in that: The outer wall of the limit block (806) slides in contact with the inner wall of the cavity (803), the blocking plate (805) forms a telescopic structure through the sliding rod (804) and the spring one (807), and the top of the blocking plate (805) is squeezed and set on the bottom of the pushing plate (6) through the spring one (807).

5. The anti-blocking self-contained plastic molding device according to claim 4, characterized in that: The auxiliary sealing mechanism (9) comprises a slip ring (901), and the inner wall of the slip ring (901) is fitted and slid with the inner wall of the annular groove (709), the outer wall of the slip ring (901) is hinged with a connecting rod (902) at an equal distance, and the other end of the connecting rod (902) is hinged with a closing plate (903), the interior of the hopper (5) is provided with a limiting groove (904) at an equal distance corresponding to the closing plate (903), and the outer wall of the closing plate (903) is fitted and slid with the inner wall of the limiting groove (904), and the outer wall of the slide cylinder (705) is fixedly connected with a fixed A fixed plate (905) is provided, and the outer wall of the fixed plate (905) corresponds to the closed plate (903) and is provided with a circulation groove (906). The outer walls on both sides of the closed plate (903) slide in contact with the inner wall of the circulation groove (906). A fixing hole (907) is provided on the top of the closed plate (903). A groove (908) is provided on the inner wall of the limiting groove (904). A spring 2 (909) is fixedly connected to the inner wall of the groove (908). The other end of the spring 2 (909) is fixedly connected to a fixing column (910) corresponding to the fixing hole (907).

6. The anti-blocking self-flowing plastic molding device according to claim 5, characterized in that: The bottom of the fixing column (910) is in a truncated cone shape, and the fixing column (910) forms a telescopic structure through the second spring (909) and the groove (908).

7. The anti-blocking self-contained plastic molding device according to claim 6, characterized in that: The fixing column (910) is pressed and arranged on the top of the closing plate (903) by a second spring (909).

8. The anti-blocking self-contained plastic molding device according to claim 7, characterized in that: The bottom of one end of the closing plate (903) away from the slide cylinder (705) is fixedly connected to a fixing plate (911), and the outer wall of one side of the fixing plate (911) facing the slide cylinder (705) is fixedly connected to a spring three (912), and the other end of the spring three (912) is fixedly connected to the outer wall of the hopper (5).

9. The anti-blocking self-flowing plastic molding device according to claim 1, characterized in that: The screw conveying component (2) is fixedly mounted on the top of the base (1), and the mold clamping component (3) is fixedly mounted on the top of the base (1).

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