Screw charging barrel active drainage type injection molding machine

Abstract

The invention discloses a screw charging barrel active drainage type injection molding machine, and relates to the technical field of falling protectors, the screw charging barrel active drainage type injection molding machine comprises an injection molding machine body, a drainage mechanism and an anti-blocking mechanism, the drainage mechanism is arranged on one side of the injection molding machine body, and the anti-blocking mechanism is arranged on the other side of the injection molding machine body; according to the device, a connecting base drives a bearing plate to reset through a telescopic plate, the bearing plate further drives a connecting plate and an extrusion rolling rod to reset, the extrusion rolling rod is attached to the surface of absorbent cotton in the resetting process, condensate water adsorbed in the absorbent cotton is extruded, water is effectively extruded out and flows into a collecting box, and the water is collected along with continuous movement of a bottom plate; the connecting base is attached to the inner wall of the sliding groove, the spring rod is separated from the locking hole, a drainage circulation process is completed, and active extrusion and recovery of condensate water in the heating process are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding machines, and particularly to a screw barrel active drainage injection molding machine. Background Art

[0002] As a core device for plastic product molding and processing, injection molding machines are widely used in multiple industries such as automobile manufacturing, electronic appliances, medical devices, and packaging containers. Among them, the screw barrel structure is one of the key components in an injection molding machine, mainly used for heating, melting, and conveying plastic particles. Through the rotational movement of the screw, the material is pushed axially to the injection end to achieve high-pressure injection molding of the molten material.

[0003] According to the invention patent with the Chinese patent publication number CN111283961B, titled "An injection molding machine for automobile parts molds", it is specifically described as including a machine case, a filling cavity, a feeding barrel, a mounting seat, an extrusion center, and a mold cavity. The filling cavity, the extrusion center, and the mold cavity are installed on the machine case. The feeding barrel is provided on the filling cavity. The output end of the filling cavity is connected to the mold cavity through the extrusion center. The extrusion center is installed and fixed with the mounting seat. The extrusion center is provided with an extrusion screw, an extrusion barrel, an inner sleeve cavity, and an outer sleeve cavity. In the present invention, the outer sleeve cavity is provided with a receiving groove, a through pipe, a nozzle part, and a fan plate. Driven by the driving port, the fan plate moves up and down around the inner sleeve cavity to timely separate the residual material in the extrusion end. The through pipe leads the material to the material receiving groove for collection, thereby preventing the long-term residue and solidification of the extrusion end from affecting the normal operation of the extrusion screw and ensuring the injection rate.

[0004] However, the existing screw barrel active drainage injection molding machine has the following deficiencies: 1. During the operation of traditional injection molding machines, the material is heated to a high temperature. Especially in the heating chamber, the moisture in the material evaporates into water vapor during the heating process. Traditional equipment usually does not have an effective mechanism to handle these water vapors, resulting in their condensation inside the equipment and forming water droplets. If the condensed water is not drained in time, it will remain in the heating area or other parts of the equipment, leading to the following problems: Equipment overheating: The accumulation of condensed water may cause the temperature of the heating area of the equipment to be too high, thus affecting the stability of the temperature control system and possibly triggering overheating failures, affecting the material heating effect: The retention of condensed water in the heating area may affect the heating efficiency of the material, resulting in uneven heating or incomplete melting of the material, and further affecting the final molding quality, environmental pollution: The retained condensed water not only affects the equipment performance but also may increase the maintenance and cleaning difficulty of the equipment and reduce the overall reliability of the equipment.

[0005] 2. In traditional injection molding machines, materials are usually transported to the heating chamber through a feeding pipe. However, due to the characteristics of the materials, such as high viscosity, uneven particle size, or long-term static state, materials often accumulate or get stuck in the feeding pipe. Blockages may prevent the materials from smoothly entering the heating chamber, thereby causing the production line to stagnate. Although some equipment is equipped with manual cleaning devices, this will increase the interruption time and labor costs during the production process. When materials are blocked in the feeding pipe, it may cause poor material flow in some areas, resulting in uneven material supply, thus affecting the melting and molding effects of the materials during the injection molding process.

[0006] Therefore, we propose a screw barrel actively draining injection molding machine to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of the present invention is to provide a screw barrel actively draining injection molding machine to solve the problems of condensate accumulation and material blockage in traditional injection molding machines, which affect production efficiency and molding quality.

[0008] To achieve the above purpose, the present invention provides the following technical solution: A screw barrel actively draining injection molding machine, including an injection molding machine body, a drainage mechanism, and an anti-blocking mechanism. The drainage mechanism is arranged on one side of the injection molding machine body, and the anti-blocking mechanism is arranged on the other side of the injection molding machine body; Drainage mechanism, the drainage mechanism includes a condenser, absorbent cotton, and an extrusion roller. The absorbent cotton is attached to the bottom end of the condenser, and the extrusion roller is arranged outside the absorbent cotton; Anti-blocking mechanism, the anti-blocking mechanism includes a feeding pipe, an L-shaped knocking plate, a knocking rod, and a preloading spring. One end of the preloading spring is fixedly connected to the L-shaped knocking plate, one end of the L-shaped knocking plate is fixedly connected to the knocking rod, and the inner side of the knocking rod is attached to the outer wall of the feeding pipe.

[0009] Preferably, the drainage mechanism further includes a heating chamber, a motor, a lead screw, a bottom plate, a transmission support, a chute, a connecting seat, and a guiding groove. The bottom end of the motor is fixedly connected to the inner wall of the injection molding machine body, the output end of the motor is fixedly connected to the lead screw, the middle part of the lead screw is threadedly connected to the transmission support, and the heating chamber is fixedly connected to the middle part of the injection molding machine body.

[0010] Preferably, the bottom plate is slidably connected to the inner wall of the heating chamber. The top end of the bottom plate is fixedly connected to a return spring, the top end of the return spring is fixedly connected to a support plate, the absorbent cotton is fixedly connected to the top end of the support plate, and the condenser is connected to the top end of the heating chamber.

[0011] Preferably, two bases are fixedly connected to the bottom end of the bottom plate. Spring rods are embedded at both ends of the two bases. A connection frame is fixedly connected to the outside of the heating chamber. Guide grooves are formed on both sides of the inner wall of the connection frame. Load-bearing plates are slidably connected to the inner walls of the two guide grooves. Connecting plates are fixedly connected to the tops of the two load-bearing plates. The two ends of the extrusion roller are respectively rotatably connected to the inner sides of the two connecting plates.

[0012] Preferably, sliding grooves are formed on both sides of the inner wall of the connection frame. Connection seats are slidably connected to the inner walls of the two sliding grooves. Locking holes are formed in the inner sides of the two connection seats. The size of the locking holes matches that of the spring rods. Telescopic plates are fixedly connected to the tops of the two connection seats. The free ends of the two telescopic plates are respectively slidably connected to the bottoms of the two load-bearing plates.

[0013] Preferably, one end of the transmission support is fixedly connected to the outside of the bottom plate. A collection box is fixedly connected to the bottom end of the connection frame. An installation pipe is fixedly connected to the bottom end of the collection box. A connection pipe is fixedly connected to the bottom end of the installation pipe. A compression spring is fixedly connected to the inner wall of the bottom end of the connection pipe. A through pipe is fixedly connected to the inner wall of the bottom end of the connection pipe. Through grooves are formed on the outside of the through pipe.

[0014] Preferably, a lifting plate is vertically slidably connected to the middle of the through pipe. The bottom end of the lifting plate is fixedly connected to the top end of the compression spring. A transfer pipe is connected to the middle of the injection molding machine body. One end of the transfer pipe is connected to an injection mold. The injection mold is connected to the top end of the injection molding machine body. A spiral rod is connected to the inner wall of the transfer pipe. A heating sleeve is fixedly connected to the outer wall of the transfer pipe.

[0015] Preferably, a heating plate is connected to the inner wall of the bottom end of the heating chamber. A heater is fixedly connected to the outer wall of the heating chamber. The heating sleeve and the heating plate are both electrically connected to the heater. A water storage box is attached to the outer wall of the heater. A transmission pipe is fixedly connected to the bottom end of the connection pipe. One end of the transmission pipe is threadedly connected to the water storage box. The water storage box is fixedly connected to the middle of the injection molding machine body.

[0016] Preferably, the bottom end of the feeding pipe is connected to the outside of the heating chamber. A vertical plate is fixedly connected to the outside of the heating chamber. The other end of the pre-pressure spring is fixedly connected to the inside of the vertical plate. A limiting rod is fixedly connected to the middle of the inside of the vertical plate.

[0017] Preferably, the L-shaped knocking plate is rotatably connected to the middle of the limiting rod. A trigger rod is provided on one side of the L-shaped knocking plate. One end of the trigger rod is fixedly connected to the bottom end of the bottom plate. The other end of the trigger rod penetrates through the outer wall of the heating chamber. A barrel body is fixedly connected to the top end of the injection molding machine body. The barrel body is fixedly connected to the feeding pipe.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the drainage mechanism provided in the present invention, the active discharge of moisture during the material processing is realized. When the user feeds the material into the material bin, the material enters the heating bin through the feeding pipe. The heating bin heats and melts the material. As the material is heated, the generated water vapor floats upward and contacts the condenser provided above, forming condensed water. The output end of the motor drives the screw rod to rotate, and the screw rod drives the transmission support to move in a set direction. During the movement of the transmission support, the bottom plate is driven to move. When the bottom plate moves to a specific position, two spring rods provided outside one of the bases are inserted into the locking holes inside the connecting seat. At this time, the spring rods push the connecting seat to move, and the telescopic plate at the top of the connecting seat further drives the bearing plate to move along the guiding groove, so that the bearing plate drives the connecting plate to rise, thereby driving the pressing roller above the connecting plate to rise. When the bottom plate moves outside the heating bin, the reciprocating screw rod drives the bottom plate to reset through the transmission support, so that the bottom plate enters the heating bin again. At the same time, two spring rods outside the other base are inserted into the locking holes of the corresponding connecting seat to drive the connecting seat to complete the reset. The connecting seat drives the bearing plate to reset through the telescopic plate, and the bearing plate further drives the connecting plate and the pressing roller to reset. During the reset process of the pressing roller, it fits the surface of the water-absorbing cotton and squeezes the condensed water adsorbed in the water-absorbing cotton. The moisture is effectively squeezed out and flows into the collection box. As the bottom plate continues to move, the connecting seat fits the inner wall of the sliding groove, and the spring rod is separated from the locking hole, completing a drainage cycle process, realizing the active extrusion and recovery of condensed water during the heating process.

[0019] 2. Through the drainage mechanism provided in the present invention, on the basis of completing the collection of condensed water, the reprocessing and green utilization of condensed water are further realized. Specifically, after the condensed water is extruded from the absorbent cotton by the extrusion roller, it first flows into the collection box arranged at the bottom. The collection box is communicated with the connecting pipe through the installation pipe. Under the action of gravity, the condensed water naturally flows into the inside of the connecting pipe through the installation pipe. The outlet of the connecting pipe is located at the top end of the lifting plate, and the water flow is temporarily stored here. As the amount of condensed water collected continuously increases, its weight gradually increases. When the condensed water reaches the set volume, the accumulated water weight will overcome the elastic force of the compression spring below the lifting plate, causing the lifting plate to sink under the action of the water weight. The descent of the lifting plate not only reflects the intelligent mechanical control logic but also drives the compression spring to undergo elastic deformation and store elastic energy. When the lifting plate descends to a certain extent, the through groove opened at its lower part is communicated with the drainage path, and the condensed water accumulated on the top of the lifting plate will then flow into the lower transmission pipe through the through groove. The transmission pipe is a closed and guiding structure, which can guide the water to the water storage box arranged inside the device. The water storage box is arranged closely against the outer wall of the heater and has a good heat conduction and heat dissipation contact interface. After the condensed water enters, it can quickly absorb the heat released by the heater and effectively cool it. As the operation time of the device extends, the condensed water continuously circulates, accumulates, is transmitted and utilized, thus forming a closed-loop internal cooling and water cycle integrating collection - triggering - transmission - cooling, ensuring the thermal stability and safety during the long-term operation of the device. At the same time, this structure does not require an electric control device and realizes automatic control only through the physical structure and gravity drive, with high adaptability and reliability.

[0020] 3. Through the anti-blocking mechanism provided in the present invention, whenever the bottom plate enters the heating chamber, the trigger rod arranged at the bottom end of the bottom plate will contact the L-shaped knocking plate arranged inside the device and push the knocking plate to deflect at an angle. The L-shaped knocking plate rotates around its rotating shaft under the action of an external force, and its inner edge will press the preset pre-compressed spring, causing it to be compressed and store elastic energy. When the bottom plate continues to move forward and the trigger rod gradually moves away from the L-shaped knocking plate, at this time, the knocking plate that loses the external force support will instantaneously return to its original position under the action of the elastic force release of the pre-compressed spring and complete a rapid rebound action. During this rebound process, the other end of the L-shaped knocking plate drives the knocking rod connected to it to achieve an instantaneous impact action, and the knocking rod knocks the outer wall of the feeding pipe, thereby generating vibrations on the transmission path of the feeding pipe. These vibrations can effectively disturb the flow state of the materials inside the feeding pipe, avoid local accumulation or pipeline blockage caused by reasons such as overly viscous materials, uneven particle sizes, or long-term static placement, and ensure that the materials can smoothly enter the feeding pipe from the barrel body and be transmitted to the heating chamber for heating treatment. Without adding additional electric drive components, the function of automatically knocking the feeding pipe and removing blockages is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is the front view structural three-dimensional diagram of an actively drained injection molding machine with a screw barrel according to the present invention; Figure 2 It is the structural schematic diagram of one side of an actively drained injection molding machine with a screw barrel according to the present invention; Figure 3 It is the structural sectional view of the transfer pipe part of an actively drained injection molding machine with a screw barrel according to the present invention; Figure 4 It is the structural schematic diagram of the heating chamber part of an actively drained injection molding machine with a screw barrel according to the present invention; Figure 5 It is about an actively drained injection molding machine with a screw barrel according to the present invention Figure 4 The enlarged view at position C; Figure 6 It is the structural schematic diagram of the interior of the heating chamber of an actively drained injection molding machine with a screw barrel according to the present invention; Figure 7 It is about an actively drained injection molding machine with a screw barrel according to the present invention Figure 6 The enlarged view at position B; Figure 8 It is the structural schematic diagram of the water absorption cotton part of an actively drained injection molding machine with a screw barrel according to the present invention.

[0022] Figure 9 It is about an actively drained injection molding machine with a screw barrel according to the present invention Figure 8 The enlarged view at position C; Figure 10 It is about an actively drained injection molding machine with a screw barrel according to the present invention Figure 8 The enlarged view at position D.

[0023] In the figure: 1, injection molding machine body; 2, injection mold; 3, barrel body; 4, drainage mechanism; 401, motor; 402, lead screw; 403, condenser; 404, heating chamber; 405, connecting pipe; 406, collection box; 407, transmission pipe; 408, water storage box; 409, installation pipe; 410, extrusion roller; 411, connecting frame; 412, water absorption cotton; 413, return spring; 414, bottom plate; 415, spring rod; 416, base; 417, support plate; 418, connecting plate; 419, through groove; 420, transmission support; 421, guiding groove; 422, bearing plate; 423, telescopic plate; 424, sliding groove; 425, connecting seat; 426, locking hole; 427, lifting plate; 428, compression spring; 429, through pipe; 5, transfer pipe; 501, spiral rod; 502, heating collar; 503, heating plate; 504, heater; 6, anti-blocking mechanism; 601, feeding pipe; 602, knocking rod; 603, L-shaped knocking plate; 604, limiting rod; 605, preloading spring; 606, triggering rod; 607, vertical plate. Detailed implementation mode

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to the attached Figure 1 -attached Figure 10 As shown, the present invention provides a technical solution: a screw barrel active drainage injection molding machine, including an injection molding machine body 1, a drainage mechanism 4 and an anti-blocking mechanism 6. The drainage mechanism 4 is arranged on one side of the injection molding machine body 1, and the anti-blocking mechanism 6 is arranged on the other side of the injection molding machine body 1; Drainage mechanism 4, the drainage mechanism 4 includes a condenser 403, a water-absorbing cotton 412 and an extrusion roller 410. The bottom end of the condenser 403 is attached to the water-absorbing cotton 412, and the extrusion roller 410 is arranged outside the water-absorbing cotton 412.

[0026] Example 1, according to Figures 3 - 4 and Figures 6 - 10As shown in the figure, the drainage mechanism 4 further includes a heating chamber 404, a motor 401, a lead screw 402, a bottom plate 414, a transmission support 420, a chute 424, a connecting seat 425, and a guiding groove 421. The bottom end of the motor 401 is fixedly connected to the inner wall of the injection molding machine body 1, the output end of the motor 401 is fixedly connected with a lead screw 402, the middle part of the lead screw 402 is threadedly connected with a transmission support 420, the heating chamber 404 is fixedly connected to the middle of the injection molding machine body 1, the bottom plate 414 is slidably connected to the inner wall of the heating chamber 404, a return spring 413 is fixedly connected to the top end of the bottom plate 414, a support plate 417 is fixedly connected to the top end of the return spring 413, a water-absorbing cotton 412 is fixedly connected to the top end of the support plate 417, a condenser 403 is connected to the top end of the heating chamber 404, two bases 416 are fixedly connected to the bottom end of the bottom plate 414, spring rods 415 are embedded at both ends of the two bases 416, a connecting frame 411 is fixedly connected to the outside of the heating chamber 404, guiding grooves 421 are opened on both sides of the inner wall of the connecting frame 411, a bearing plate 422 is slidably connected to the inner wall of each of the two guiding grooves 421, connecting plates 418 are fixedly connected to the top ends of the two bearing plates 422, both ends of an extrusion roller 410 are rotatably connected to the inner sides of the two connecting plates 418, chutes 424 are opened on both sides of the inner wall of the connecting frame 411, connecting seats 425 are slidably connected to the inner walls of the two chutes 424, locking holes 426 are opened on the inner sides of the two connecting seats 425, the sizes of the locking holes 426 match those of the spring rods 415, telescopic plates 423 are fixedly connected to the top ends of the two connecting seats 425, and the free ends of the two telescopic plates 423 are respectively slidably connected to the bottom ends of the two bearing plates 422. One end of the transmission support 420 is fixedly connected to the outside of the bottom plate 414, a collection box 406 is fixedly connected to the bottom end of the connecting frame 411, an installation pipe 409 is fixedly connected to the bottom end of the collection box 406, a connecting pipe 405 is fixedly connected to the bottom end of the installation pipe 409, a compression spring 428 is fixedly connected to the inner wall of the bottom end of the connecting pipe 405, a through pipe 429 is fixedly connected to the inner wall of the bottom end of the connecting pipe 405, a through groove 419 is opened on the outside of the through pipe 429, a lifting plate 427 is vertically slidably connected to the middle of the through pipe 429, the bottom end of the lifting plate 427 is fixedly connected to the top end of the compression spring 428, a transfer pipe 5 is connected to the middle of the injection molding machine body 1, one end of the transfer pipe 5 is connected to an injection mold 2, the injection mold 2 is connected to the top end of the injection molding machine body 1, a spiral rod 501 is connected to the inner wall of the transfer pipe 5, a heating collar 502 is fixedly connected to the outer wall of the transfer pipe 5, a heating plate 503 is connected to the inner wall of the bottom end of the heating chamber 404, a heater 504 is fixedly connected to the outer wall of the heating chamber 404, the heating collar 502 and the heating plate 503 are both electrically connected to the heater 504, a water storage box 408 is attached to the outer wall of the heater 504, a transmission pipe 407 is fixedly connected to the bottom end of the connecting pipe 405, one end of the transmission pipe 407 is threadedly connected to the water storage box 408, and the water storage box 408 is fixedly connected to the middle of the injection molding machine body 1.

[0027] The effects achieved by the entire Embodiment 1 are as follows: The drainage mechanism 4 includes a condenser 403, a water-absorbing cotton 412, and a squeezing roller 410. The bottom end of the condenser 403 is attached with the water-absorbing cotton 412 for collecting the water condensed from water vapor. The squeezing roller 410 is arranged outside the water-absorbing cotton 412, which can periodically squeeze the water-absorbing cotton 412 and drain the water therein, effectively preventing the retention of condensed water. At the same time, the drainage mechanism 4 further includes structures such as a heating chamber 404, a motor 401, a lead screw 402, a bottom plate 414, a transmission support 420, a sliding groove 424, a connecting seat 425, and a guiding groove 421. The motor 401 is installed on the inner wall of the injection molding machine body 1, and its output end is connected to the lead screw 402. The lead screw 402 is threadedly connected to the transmission support 420 and can drive the bottom plate 414 to slide under the rotation drive. The bottom plate 414 slides on the inner wall of the heating chamber 404 and is upwardly connected to the support plate 417 through a return spring 413, thereby driving the upper water-absorbing cotton 412 to perform reciprocating motion. The condenser 403 is arranged at the top of the heating chamber 404 to further improve the water vapor recovery efficiency. Two bases 416 are connected to the bottom end of the bottom plate 414. Each end of each base 416 is embedded with a spring rod 415, which can automatically engage with the locking holes 426 on the inner wall of the connecting frame 411 during the operation of the bottom plate 414 to achieve stage-by-stage limiting and release, thereby driving the connecting seat 425 to move along the sliding groove 424;A telescopic plate 423 is connected to the top of the connecting seat 425. The bottom end of the telescopic plate 423 is connected to a bearing plate 422. A connecting plate 418 is connected to the top of the bearing plate 422. Extrusion roller rods 410 are installed between the connecting plates 418. With the cooperation of the above structures, during the movement of the bottom plate 414, the extrusion roller rods 410 can be driven to squeeze the water-absorbing cotton 412 to achieve automatic drainage. The squeezed water gathers in the collection box 406 and enters the interior of the connecting pipe 405 through the installation pipe 409. As the water volume increases, the accumulated water will drive the lifting plate 427 in the connecting pipe 405 to move downward, thereby compressing the lower compression spring 428. When the accumulated water reaches the position of the through groove 419, it will enter the through pipe 429 through the through groove 419 and is finally transported to the water storage box 408 through the transmission pipe 407. The water storage box 408 is attached to the outer wall of the heater 504 and can use the condensed water to perform heat exchange cooling on the heater 504, reducing the surface temperature of the equipment, effectively preventing overheating failures, and at the same time realizing the green recycling of waste water resources. In the middle of the injection molding machine body 1, there is also a transfer pipe 5. A spiral rod 501 for feeding is provided on the inner wall of the transfer pipe 5, and a heating sleeve ring 502 is provided on the outer wall to further heat the raw materials and improve the melting efficiency. The heating sleeve ring 502 works in coordination with the heating plate 503 and the electrically connected heater 504 to ensure uniform heating and melting of the plastic particles and improve the quality of injection molding. The structure of this solution is compactly coordinated and can achieve mechanical linkage and resource reuse of multiple actions such as drainage, cooling, and feeding, improving the overall intelligent and automated level of the equipment, effectively extending the service life of the injection molding equipment, reducing the failure rate, and being applicable to the usage scenarios in modern injection molding production that emphasize both efficiency and environmental protection. The extrusion roller rods 410 are installed between the two connecting plates 418 and can drive the extrusion roller rods 410 to squeeze the water-absorbing cotton 412 during the reciprocating movement of the bottom plate 414. The squeezed water gathers in the collection box 406. The bottom end of the collection box 406 is connected to the connecting pipe 405 through the installation pipe 409. As the water volume increases, the accumulated water will push the lifting plate 427 in the connecting pipe 405 to move downward, compressing the lower compression spring 428. When the accumulated water reaches the set water level, the water flow enters the through pipe 429 through the through groove 419 and is finally transported to the water storage box 408 through the transmission pipe 407. The water storage box 408 is fixed in the middle of the injection molding machine body 1 and is attached to the outer wall of the heater 504, and can effectively cool the heater 504 using the condensed water to prevent the heater 504 from failing due to overheating.;

[0028] It should be noted that: It includes multiple functions such as efficient drainage, cooling, and feeding, ensuring the efficient operation of the equipment and a low failure rate. The drainage mechanism 4 includes a condenser 403, a water-absorbing cotton 412, and a squeezing roller 410. The water-absorbing cotton 412 is attached to the bottom end of the condenser 403 for effectively collecting condensed water. A squeezing roller 410 is provided outside the water-absorbing cotton 412, which can periodically squeeze the water-absorbing cotton 412 to drain the water in the water-absorbing cotton 412, avoiding the retention of condensed water in the heating chamber 404. The motor 401 is fixedly installed on the inner wall of the injection molding machine body 1, and its output end is connected to a lead screw 402. The lead screw 402 is connected to the transmission support 420 through a thread and can perform a reciprocating motion under the drive of the motor 401. The bottom plate 414 is slidably connected to the inner wall of the heating chamber 404 and is connected to the support plate 417 through a return spring 413. Under the drive of the motor 401, the bottom plate 414 drives the upper water-absorbing cotton 412 to perform a reciprocating motion, realizing the squeezing and discharging of water during the drainage process. The condenser 403 is arranged at the top of the heating chamber 404 to further improve the recovery efficiency of water vapor. The bottom end of the bottom plate 414 is connected to two bases 416. Spring rods 415 are respectively embedded at both ends of the base 416. The spring rods 415 can automatically engage with the locking holes 426 in the connecting frame 411, thereby realizing stage-by-stage limiting and release. This design ensures that the connecting seat 425 can be driven to move smoothly along the sliding groove 424 during the operation of the bottom plate 414. And a sealing plug is connected to the outside of the water storage box 408, which can release the water inside the water storage box 408. The water storage box 408 is made of stainless steel material and has good heat dissipation performance.

[0029] Example 2, according to Figures 1 - 2 and Figures 4 - 5 As shown, the anti-blocking mechanism 6, the anti-blocking mechanism 6 includes a feeding pipe 601, an L-shaped knocking plate 603, a knocking rod 602, and a preloading spring 605. One end of the preloading spring 605 is fixedly connected to the L-shaped knocking plate 603. One end of the L-shaped knocking plate 603 is fixedly connected to the knocking rod 602. The inner side of the knocking rod 602 is attached to the outer wall of the feeding pipe 601. The bottom end of the feeding pipe 601 is connected to the outside of the heating chamber 404. A vertical plate 607 is fixedly connected to the outside of the heating chamber 404. The other end of the preloading spring 605 is fixedly connected to the inner side of the vertical plate 607. A limiting rod 604 is fixedly connected to the middle of the inner side of the vertical plate 607. The L-shaped knocking plate 603 is rotatably connected to the middle of the limiting rod 604. A trigger rod 606 is provided on one side of the L-shaped knocking plate 603. One end of the trigger rod 606 is fixedly connected to the bottom end of the bottom plate 414. The other end of the trigger rod 606 penetrates through the outer wall of the heating chamber 404. The top end of the injection molding machine body 1 is fixedly connected to a barrel body 3. The barrel body 3 is fixedly connected to the feeding pipe 601.

[0030] The effect achieved by the entire Embodiment 2 is as follows: The anti-blocking mechanism 6 includes a feeding pipe 601, an L-shaped knocking plate 603, a knocking rod 602, and a preloading spring 605, which is used to prevent materials from accumulating and blocking during the feeding process, thereby improving the feeding efficiency and injection molding stability. Specifically, one end of the preloading spring 605 is fixedly connected to the inner side of the vertical plate 607, and the other end is connected to the L-shaped knocking plate 603, so that the L-shaped knocking plate 603 is always kept in an initial compressed state. The other end of the L-shaped knocking plate 603 is provided with a knocking rod 602, and the knocking rod 602 is attached to the outer wall of the feeding pipe 601. The feeding pipe 601 is vertically connected to the outside of the heating bin 404 to ensure that the raw materials can smoothly enter the heating area. The vertical plate 607 is fixed to the outside of the heating bin 404 by welding or other means, playing a role of support and guidance. A limiting rod 604 is provided in the middle of its inner side. The L-shaped knocking plate 603 is rotatably connected to the middle of the limiting rod 604 through a rotating shaft to realize the reset and guiding functions of the knocking action. In addition, a trigger rod 606 is fixedly provided at the bottom end of the bottom plate 414. The trigger rod 606 penetrates the outer wall of the heating bin 404 and cooperates with the L-shaped knocking plate 603. Whenever the bottom plate 414 enters the heating bin 404 for drainage or feeding reset action, the trigger rod 606 will push the L-shaped knocking plate 603 to deflect, making the preloading spring 605 in a compressed state. When the bottom plate 414 moves away from the L-shaped knocking plate 603, the elastic force released by the preloading spring 605 can instantaneously drive the L-shaped knocking plate 603 to bounce back in the reverse direction, and drive the knocking rod 602 to knock the outer wall of the feeding pipe 601, thereby forming a directional vibration of the feeding channel, effectively loosening or breaking the raw materials that may accumulate on the pipe wall or the bottom, preventing problems such as adhesion and accumulation of materials during gravity feeding, and blocking. Through the mechanical linkage type automatic knocking design of this structure, not only can the anti-blocking operation be realized without an additional power source, but also the maintenance is simple and the response is timely, significantly improving the feeding fluency and production stability of the injection molding equipment during continuous operation, and at the same time extending the service life of the feeding pipe 601 and the barrel body 3, meeting the stable operation requirements under high-frequency injection molding conditions.

[0031] The working principle of the entire device is as follows: When the user feeds the material into the bin, the material enters the heating bin 404 through the feeding pipe 601. The heating bin 404 heats and melts the material. As the material is heated, the generated water vapor floats upward and contacts the condenser 403 arranged above, forming condensed water. The output end of the motor 401 drives the lead screw 402 to rotate, and the lead screw 402 drives the transmission support 420 to move in a set direction. During the movement of the transmission support 420, it drives the bottom plate 414 to move. When the bottom plate 414 moves to a specific position, the two spring rods 415 on the outside of one of the bases 416 are inserted into the locking holes 426 inside the connecting seat 425. At this time, the spring rods 415 push the connecting seat 425 to move, and the telescopic plate 423 at the top of the connecting seat 425 further drives the bearing plate 422 to move along the guiding groove 421, so that the bearing plate 422 drives the connecting plate 418 to rise, thereby driving the extrusion roller 410 above the connecting plate 418 to rise. When the bottom plate 414 moves outside the heating bin 404, the reciprocating lead screw 402 drives the bottom plate 414 to reset through the transmission support 420, so that the bottom plate 414 enters the heating bin 404 again. At the same time, the two spring rods 415 on the outside of the other base 416 are inserted into the locking holes 426 of the corresponding connecting seat 425 to drive the connecting seat 425 to complete the reset. The connecting seat 425 drives the bearing plate 422 to reset through the telescopic plate 423, and the bearing plate 422 further drives the connecting plate 418 and the extrusion roller 410 to reset. During the reset process, the extrusion roller 410 fits on the surface of the absorbent cotton 412 and squeezes the condensed water adsorbed in the absorbent cotton 412. The water is effectively squeezed out and flows into the collection box 406. As the bottom plate 414 continues to move, the connecting seat 425 fits on the inner wall of the sliding groove 424, and the spring rods 415 are separated from the locking holes 426, completing a drainage cycle process, realizing the active extrusion and recovery of condensed water during the heating process. On the basis of completing the collection of condensed water, the reprocessing and green utilization of condensed water are further realized. Specifically, after the condensed water is squeezed out of the absorbent cotton 412 by the extrusion roller 410, it first flows into the collection box 406 arranged at the bottom. The collection box 406 is connected to the connecting pipe 405 through the installation pipe 409. The condensed water naturally flows into the inside of the connecting pipe 405 through the installation pipe 409 under the action of gravity. The outlet of the connecting pipe 405 is located at the top of the lifting plate 427, and the water flow is temporarily stored here. As the amount of collected condensed water continues to increase, its weight gradually increases. When the condensed water reaches the set volume, the accumulated water weight will overcome the elastic force of the compression spring 428 below the lifting plate 427, causing the lifting plate 427 to sink under the action of the water weight. The descent of the lifting plate 427 not only reflects the intelligent mechanical control logic but also drives the compression spring 428 to undergo elastic deformation and store elastic energy. When the lifting plate 427 descends to a certain extent, the through groove 419 opened at its lower part is connected to the drainage path, and the condensed water accumulated at the top of the lifting plate 427 will flow into the lower transmission pipe 407 through the through groove 419 along the trend.The transmission pipe 407 is of a closed and guided structure, which can guide water to the water storage box 408 arranged inside the device. The water storage box 408 is arranged closely against the outer wall of the heater 504 and has a good heat conduction and heat dissipation contact interface. After the condensed water enters, it can quickly absorb the heat released by the heater 504 and effectively cool it. As the operation time of the device extends, the condensed water continuously circulates, accumulates, is transmitted and utilized, thus forming a closed-loop internal cooling and water cycle integrating collection - triggering - transmission - cooling, ensuring the thermal stability and safety during the long-term operation of the device. At the same time, this structure does not require an electric control device and realizes automatic control only through the physical structure and gravity drive, with high adaptability and reliability. Whenever the bottom plate 414 enters the heating chamber 404, the trigger rod 606 arranged at the bottom end of the bottom plate 414 will contact the L-shaped knocking plate 603 arranged inside the device and push the knocking plate to deflect at an angle. The L-shaped knocking plate 603 rotates around its rotating shaft under the action of an external force, and its inner edge will press the preset preloading spring 605, causing it to be compressed and store elastic energy. When the bottom plate 414 continues to move forward, the trigger rod 606 gradually moves away from the L-shaped knocking plate 603. At this time, the knocking plate without external force support instantaneously returns to its original position under the action of the elastic force release of the preloading spring 605 and completes a quick rebound action. During this rebound process, the other end of the L-shaped knocking plate 603 drives the knocking rod 602 connected to it to achieve an instantaneous impact action. The knocking rod 602 knocks the outer wall of the feeding pipe 601, thereby generating vibrations on the transmission path of the feeding pipe 601. This vibration can effectively disturb the material flow state inside the feeding pipe 601 and avoid local accumulation or pipeline blockage caused by reasons such as too viscous material, different particle sizes, or long-term static placement, ensuring that the material can smoothly enter the feeding pipe 601 from the barrel body 3 and be transported to the heating chamber 404 for heating treatment. Without adding additional electric drive components, the function of automatically knocking the feeding pipe 601 and breaking the blockage is realized.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A screw barrel active drainage type injection molding machine, comprising an injection molding machine body, a drainage mechanism and an anti-blocking mechanism, characterized in that: The drainage mechanism is arranged on one side of the injection molding machine body, and the anti-blocking mechanism is arranged on the other side of the injection molding machine body; The drainage mechanism includes a condenser, absorbent cotton and a squeezing roller, the bottom end of the condenser is attached with absorbent cotton, and the outer side of the absorbent cotton is provided with a squeezing roller; The anti-blocking mechanism includes a feeding pipe, an L-shaped knocking plate, a knocking rod and a pre-stressed spring, one end of the pre-stressed spring is fixedly connected to the L-shaped knocking plate, one end of the L-shaped knocking plate is fixedly connected to the knocking rod, and the inner side of the knocking rod is in contact with the outer wall of the feeding pipe.

2. The screw barrel active drainage type injection molding machine according to claim 1, characterized in that: The drainage mechanism also includes a heating bin, a motor, a screw, a bottom plate, a transmission support, a slide groove, a connecting seat and a guide groove. The bottom end of the motor is fixedly connected to the inner wall of the injection molding machine body, the output end of the motor is fixedly connected to the screw, the middle part of the screw is threadedly connected to the transmission support, and the heating bin is fixedly connected to the middle part of the injection molding machine body.

3. The screw barrel active drainage type injection molding machine according to claim 2, characterized in that: The bottom plate is slidably connected to the inner wall of the heating chamber, the top of the bottom plate is fixedly connected to a return spring, the top of the return spring is fixedly connected to a support plate, the absorbent cotton is fixedly connected to the top of the support plate, and the condenser is connected to the top of the heating chamber.

4. The screw barrel active drainage type injection molding machine according to claim 2, characterized in that: The bottom end of the bottom plate is fixedly connected to two bases, both ends of the two bases are embedded with spring rods, the outer side of the heating chamber is fixedly connected to a connecting frame, both sides of the inner wall of the connecting frame are provided with guide grooves, the inner walls of the two guide grooves are slidably connected to supporting plates, the top ends of the two supporting plates are fixedly connected to connecting plates, and the two ends of the extrusion roller are rotatably connected to the inner sides of the two connecting plates.

5. The screw barrel active drainage type injection molding machine according to claim 4, characterized in that: Slide grooves are provided on both sides of the inner wall of the connecting frame, and the inner walls of the two slide grooves are slidably connected with connecting seats. Locking holes are provided on the inner sides of the two connecting seats, and the locking holes match the size of the spring rods. The top ends of the two connecting seats are fixedly connected with telescopic plates, and the free ends of the two telescopic plates are respectively slidably connected to the bottom ends of the two supporting plates.

6. The screw barrel active drainage type injection molding machine according to claim 5, characterized in that: One end of the transmission support is fixedly connected to the outer side of the base plate, the bottom end of the connecting frame is fixedly connected to a collecting box, the bottom end of the collecting box is fixedly connected to a mounting tube, the bottom end of the mounting tube is fixedly connected to a connecting tube, the inner wall of the bottom end of the connecting tube is fixedly connected to a compression spring, the inner wall of the bottom end of the connecting tube is fixedly connected to a through tube, and a through groove is provided on the outside of the through tube.

7. The screw barrel active drainage type injection molding machine according to claim 6, characterized in that: The middle part of the through pipe is vertically slidably connected with a lifting plate, the bottom end of the lifting plate is fixedly connected to the top end of the compression spring, the middle part of the injection molding machine body is connected with a transfer tube, one end of the transfer tube is connected to an injection mold, the injection mold is connected to the top end of the injection molding machine body, the inner wall of the transfer tube is connected with a spiral rod, and the outer wall of the transfer tube is fixedly connected with a heating ring.

8. The screw barrel active drainage type injection molding machine according to claim 7, characterized in that: The inner wall of the bottom end of the heating chamber is connected to a heating plate, the outer wall of the heating chamber is fixedly connected to a heater, the heating ring and the heating plate are electrically connected to the heater, the outer wall of the heater is fitted with a water storage box, the bottom end of the connecting pipe is fixedly connected to a transmission pipe, one end of the transmission pipe is threadedly connected to the water storage box, and the water storage box is fixedly connected to the middle part of the injection molding machine body.

9. The screw barrel active drainage type injection molding machine according to claim 1, characterized in that: The bottom end of the feeding pipe is connected to the outside of the heating bin, a vertical plate is fixedly connected to the outside of the heating bin, the other end of the preload spring is fixedly connected to the inside of the vertical plate, and a limiting rod is fixedly connected to the middle of the inner side of the vertical plate.

10. The screw barrel active drainage type injection molding machine according to claim 9, characterized in that: The L-shaped knocking plate is rotatably connected to the middle part of the limit rod, and a trigger rod is provided on one side of the L-shaped knocking plate. One end of the trigger rod is fixedly connected to the bottom end of the base plate, and the other end of the trigger rod passes through the outer wall of the heating bin. The top end of the injection molding machine body is fixedly connected to the barrel body, and the barrel body is fixedly connected to the feeding pipe.

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