Efficient injection molding equipment applying mold wheel type distribution

Abstract

The invention relates to the field of material injection molding, in particular to efficient injection molding equipment applying mold wheel type distribution, and the efficient injection molding equipment applying mold wheel type distribution comprises an extrusion pipe, and an injection molding head is arranged at one end of the extrusion pipe; the wheel carrier is vertically arranged on one side of the injection molding head, and a plurality of groups of molds are circumferentially distributed on the wheel surface of the wheel carrier and are distributed in a vertical plane; the wheel carrier rotates along the wheel center, so that the molds sequentially correspond to the injection heads; the cooling part is fixed above the plurality of groups of molds on the wheel carrier; the demolding part is arranged on the edge of the side, away from the injection molding head, of the wheel carrier and used for conveying finished products. The injection molding machine has the effect of further improving the injection molding and output efficiency of the injection molding machine.

Description

Technical Field

[0001] The present application relates to the field of material injection molding, and in particular to a high-efficiency injection molding device using mold wheel distribution. Background Art

[0002] An injection molding machine is a mechanical device that injects melted plastic or other molten plastic materials into a mold under high pressure, allowing it to cool and solidify to form the desired plastic products or parts. It is widely used in the production of various plastic products and metal products.

[0003] In simple terms, the working process of the injection molding machine includes feeding and melting, injection cooling, and mold opening and demolding. The injection mold in the hopper is melted by the heating component at the front end of the injection molding machine, and the screw is pushed forward along the extrusion tube and transported to the injection head. The plunger in the injection head transports the melted material to the mold for cooling, completes the shaping, and can be taken out of the mold after the subsequent mold opening.

[0004] In order to improve the output efficiency of the injection molding machine, multiple injection molds are usually set up. Multiple injection molds are distributed in a turntable manner. They are transported to the part aligned with the injection molding head in sequence by rotation, and multiple groups of injection molding processes are carried out at the same time. The existing turntable distribution is usually only applicable to a small number of molds, that is, multiple groups of molds on a turntable are distributed in polygonal shapes at the corners and edges of the turntable. With respect to the above-mentioned related technologies, improvements can be made from a structural perspective on the basis of the mold turntable distribution, the number of molds set can be increased, and corresponding collaborative components can be set to further increase production efficiency. Summary of the invention

[0005] In order to further improve the injection molding and output efficiency of an injection molding machine, the present invention provides a high-efficiency injection molding equipment using mold wheel distribution.

[0006] The present invention provides a high-efficiency injection molding equipment using mold wheel distribution, which adopts the following technical solutions: A high-efficiency injection molding device using a mold wheel distribution includes an extrusion tube, an injection molding head is provided at one end of the extrusion tube, and further includes: A wheel frame is vertically arranged on one side of the injection molding head, and a plurality of groups of molds are circumferentially distributed on the wheel surface of the wheel frame, and the plurality of groups of molds are distributed in a vertical plane; the wheel frame rotates along the wheel center so that the molds correspond to the injection molding head in sequence; A cooling unit is fixed above the plurality of groups of the molds on the wheel frame; The demoulding part is arranged on the edge of one side of the wheel frame away from the injection molding head and is used for conveying the finished product.

[0007] By adopting the above technical solution, the extrusion tube and the injection head are connected to the front end hopper and the heating chamber, and the front end device continuously adds material into the hopper. After being heated by the heating part, the material melts and is transported from the extrusion tube to the injection head. A plunger is arranged in the injection head. Under the push of the plunger, the injection head injects the molten material into the mold inside the wheel frame. Specifically, in the present application, the wheel frame is the main frame for installing the mold, the wheel frame is vertically arranged, and multiple groups of molds are circumferentially distributed on the wheel surface of the wheel frame at equal intervals. By relying on the rotation of the wheel frame, the multiple groups of molds are aligned with the injection head in sequence, and the injection head feeds and cooperates with the plunger to inject the molten material into the mold cavity of the mold; the wheel center is provided with a servo motor corresponding to the wheel frame, driving the wheel frame to rotate at a preset speed in the vertical plane; The cooling part is fixed above the mold, or behind the injection head in the rotation direction of the wheel frame, and is used to cool the mold after injection molding and cool it to shape; as the wheel frame rotates, the molds on the wheel frame are aligned with the cooling part in sequence; the demoulding part is set behind the cooling part in the rotation direction of the wheel frame, and the mold is disassembled and unloaded in the demoulding part and transported to the rear for subsequent processing steps; Compared with the traditional solution, a wheel frame is set as the main supporting frame component of the mold, and the molds are distributed on the wheel surface of the wheel frame at equal angles in the circumferential direction, which greatly increases the number of distributed molds. The injection molding process of multiple groups of molds can be carried out at the same time, and the corresponding cooling part, demoulding part and injection head are set for the wheel frame to form a complete injection molding production line.

[0008] Optionally, also include: A mounting block is vertically arranged on one side of the wheel frame and fixedly connected to the extrusion tube, a mounting groove is vertically opened inside the mounting block, and a through groove communicating with the mounting groove is opened on a side wall of the mounting block close to the wheel frame; An arc-shaped slide rail is arranged in the installation groove, the arc-shaped slide rail is bent into an arc shape, and the curvature of the arc-shaped slide rail is equal to the curvature of the wheel frame; The slide table slides on the arc-shaped slide rail, and the sliding of the slide table is synchronized with the rotation of the wheel frame; the injection head is fixedly connected to the slide table and connected to the extrusion tube through a hose.

[0009] By adopting the above technical solution, the mounting block, the arc-shaped slide rail and the slide table inside the mounting block are the injection head mounting structure provided for the wheel frame adapted to vertical rotation in this application; Specifically, a mounting groove is provided in the mounting block, and the mounting groove is used to accommodate the arc-shaped slide rail and the slide table. The arc-shaped slide rail and the slide table are the main matching parts for driving the injection molding head to slide, and the plate body of the mounting block plays a protective role; a through groove is provided on one side of the mounting block close to the wheel frame, and is used to allow the injection molding head to extend to the part outside the mounting groove and feed horizontally toward the mold on the wheel frame; The slide uses a common electric slide. The electric slide drives the injection head along the arc-shaped slide rail to maintain a horizontal state and slide along the vertical plane of the arc-shaped track. The curvature of the arc-shaped slide rail is equal to the curvature of the wheel frame, that is, the slide slides in an arc shape parallel to the rotation direction of the mold on the wheel frame. The injection head injects material into the mold without the wheel frame pausing, further improving the injection efficiency.

[0010] Optionally, a plurality of slides are slidably arranged on the arc-shaped slide rail, and the spacing between adjacent slides is equal to the spacing between adjacent molds on the wheel frame.

[0011] By adopting the above technical solution, multiple slides are arranged on the arc-shaped slide rail, which can greatly improve the utilization rate of the installation slot space in the installation block; If the single injection head in the traditional solution is maintained to perform horizontal injection, the rotation speed of the wheel frame needs to be appropriately reduced to ensure the injection integrity of each mold; therefore, in the above solution, multiple slides are simultaneously set on the arc-shaped slide rails in the mounting block, so that the multiple slides slide synchronously and at the same distance, and the spacing between the multiple slides corresponds to the spacing between the molds on the wheel frame so that the slides correspond to the molds one by one, or in other words, the injection heads correspond to the slides one by one, and materials are injected into the mold cavities of multiple molds at the same time; thereby, by reducing the distribution density of the molds to be injected, the It should be noted that, while keeping the spacing between adjacent slides equal, the height of the mounting block and the arc-shaped slide rail are positively correlated with the number of slides. A larger mounting block height will affect the distribution volume of the subsequent cooling section. Also, considering that the rotation rate of the wheel frame does not need to be too fast, the number of slides is preferably two to balance the rotation rate of the wheel frame and the distribution volume of the cooling section.

[0012] Optionally, the cooling unit includes: The air cooling plates are vertically arranged on both sides of the mold, and the plate surface of the air cooling plates is bent into a fan shape to adapt to the wheel frame; the two air cooling plates are provided with air outlets and spray outlets on the opposite sides, and the air outlets and spray outlets are alternately distributed along the bottom edge of the air cooling plates.

[0013] By adopting the above technical solution, the cooling unit first provides an air-cooling cooling method, and after the injection molding is completed, cold air and a small amount of water mist are first delivered to the mold surface to pre-cool the injection molded part inside the mold; Specifically, the air-cooling cooling method is achieved by vertically arranging air-cooling plates on both sides of the wheel surface of the wheel frame. The spacing between the two air-cooling plates is greater than the width of the mold, and the bottom side of the air-cooling plate extends to above the wheel surface of the wheel frame, ensuring that the plate surface of the air-cooling plate corresponds to the two opposite sides of the mold; on the opposite sides of the two air-cooling plates, air outlets and spray outlets are alternately distributed at the height corresponding to the mold. The spray outlet is used to spray water mist onto the mold, and the cold air delivered by the air outlet absorbs the temperature of the high-temperature molten material inside the mold, thereby accelerating the cooling speed of the material inside the mold.

[0014] Optionally, the cooling unit further includes: A plurality of cold water pipes are vertically arranged above the wheel frame, and are arranged one by one corresponding to the cooling channels of the mold behind the air cooling plate in the rotation direction of the wheel frame. A vertical driving member is arranged above the wheel frame corresponding to the cold water pipe to drive the cold water pipe to move downward and plug into the cooling channel of the mold; The cold water tank is filled with cold water, and a soft water pipe connected to the inside is arranged at the bottom. One end of the soft water pipe is connected to the top of the cold water pipe, connecting the cold water pipe to the cold water tank.

[0015] By adopting the above technical solution, the cold water pipe and the cold water tank provide a water cooling method, and the water cooling method is arranged behind the air cooling method, so that the high-temperature molten material in the mold cavity is first cooled by air. Since the cooling temperature difference of air cooling is small, air cooling is used to provide a temperature difference ladder to avoid direct water cooling causing the molten material to drop in temperature too quickly and shrink too fast, thereby affecting the physical properties of the molded part. Specifically, water cooling uses cold water at 10℃-20℃, and the cold water is stored in a cold water tank above the wheel frame. In actual applications, the cold water tank is usually set above the workshop or on the top of the frame of the device; the body of the cold water tank can provide structural support to support the cold water pipe below the cold water tank and the vertical driving member driving the cold water pipe; the cold water tank is connected to the cold water pipe through a soft water pipe, and the cold water contained in the cold water tank is transported to the cold water pipe through the soft water pipe. The vertical driving member drives the cold water pipe to move downward, plugs into the cooling channel inside the mold, and transports the cold water to the mold to absorb high-temperature heat, thereby achieving cooling in a heat exchange manner; In order to further save structural complexity, the spray port on the air cooling plate is connected to the cold water tank.

[0016] Optionally, the circumferential distribution angles of the air-cooling plate and the cold water pipe on the wheel frame do not exceed 90°.

[0017] By adopting the above technical solution, the distribution volume of the air-cooled plate and the cold water pipe is limited, and sufficient space should be reserved for the installation block and the demoulding part; Specifically, the circumferential angle of the cooling part corresponding to the wheel frame should not exceed 180°, and it should be concentrated on the upper side of the wheel frame to use gravity to reduce the output energy consumption of cold water.

[0018] Optionally, the vertical driving member includes: A supporting arc plate is vertically arranged between the cold water tank and the wheel frame, and an arc-shaped slide groove is provided on the supporting arc plate, and the curvature of the arc-shaped slide groove is equal to the curvature of the wheel frame; A slide, slidably connected to the arc-shaped slide groove, the slide being connected to a plurality of the cold water pipes; A driving cylinder is vertically arranged downward above the supporting arc plate, the cylinder body of the driving cylinder is fixed, the end of the piston rod of the driving cylinder is fixedly connected to the top of the supporting arc plate, and drives the supporting arc plate to move downward; A plurality of fixing rods are arranged parallel to the bottom wall of the water tank, and two ends of the supporting arc plate are slidably connected to the fixing rods.

[0019] By adopting the above technical solution, the supporting arc plate, the slide, the driving cylinder and the fixing rod form a vertical driving member, which is a specific structural member for driving the lifting and lowering of the cold water pipe corresponding to the cooling channel in the mold; Specifically, the fixed rod serves as a support for both ends of the supporting arc plate, and its top end is fixed to the bottom wall of the water tank, with the water tank body serving as a structural support; the fixed rod is arranged corresponding to both ends of the supporting arc plate, and the two parallel fixed rods serve as guides for the sliding movement of the supporting arc plate, or in other words, the supporting arc plate slides along the two parallel fixed rods under the drive of the driving cylinder; the length direction of the fixed rod needs to be the radial direction of the wheel frame; The slide serves as a support frame corresponding to multiple cold water pipes, and combines the pipe bodies of multiple cold water pipes into a whole. Multiple cold water pipes slide along the arc-shaped slide groove of the supporting arc plate, synchronously with the rotation of the wheel frame, or the arc-shaped slide of the mold. Cold water is injected into the mold without pausing the rotation of the wheel frame to achieve water cooling. The significance of the slide setting is to provide a sliding structure adapted to the arc-shaped slide groove and combine all the cold water pipes into a whole.

[0020] Optionally, a spring is provided on the fixing rod, one end of the spring is connected to the fixing rod body, and the other end is connected to the slide, and the compression direction of the spring is parallel to the horizontal tangent of the rotation direction of the wheel frame.

[0021] By adopting the above technical solution, the spring can be used as the reset structure of the entire slide, or the entire cold water pipes. When the slide rotates with the wheel frame and slides in an arc, the spring is compressed. After cooling is completed, the driving cylinder drives the supporting arc plate to move up, and the cooling pipe is pulled out of the cooling channel of the mold. The spring instantly returns to an uncompressed state, so that the slide quickly slides along the arc-shaped slide groove to the initial state before the slide rotates synchronously with the wheel frame. The spring force is utilized to reduce the energy consumption of cooling pipe reset.

[0022] Optionally, the demoulding portion includes: A conveyor belt is horizontally arranged on one side of the wheel frame; The demoulding claw has a claw body part opening upward and a bottom end hinged to the conveyor belt. The demoulding claw body rotates in a vertical plane around the hinged end.

[0023] By adopting the above technical solution, the conveyor belt is used to convey the molded parts in multiple molds on the wheel frame to the subsequent processing steps; and the demoulding claws are mainly used to dock the molded parts with each mold on the conveyor belt surface, and convey the molded parts to the belt surface without damage; Specifically, the bottom end of the demoulding claw is hinged so that the demoulding claw can rotate around the hinged end in a vertical plane to fit the conveyor belt. Therefore, after the mold is opened, the molded part is separated from the mold and conveyed to the demoulding claw. The demoulding claw rotates to convey the molded part to the conveyor belt.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. Multiple groups of molds are distributed circumferentially in the vertical plane of the wheel frame, which increases the number of molds and significantly improves the production efficiency of the injection molding machine, solving the problem of low production efficiency due to the limited number of molds in the existing turntable distribution; 2. The injection head is fixed on the slide and moves synchronously with the arc-shaped slide rail, ensuring the precise alignment of the injection head and the mold during each injection process, improving the injection precision and stability, and reducing the scrap rate; 3. The cooling unit includes air cooling plates and cold water pipes, which quickly cool the mold from the outside and inside respectively, significantly accelerating the cooling speed, shortening the injection cycle, and improving the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0026] Figure 2 It is a structural schematic diagram made to highlight the wheel frame in the embodiment of the present application.

[0027] Figure 3 It is a structural schematic diagram made to highlight the mold on the wheel frame in the embodiment of the present application.

[0028] Figure 4 It is a structural schematic diagram made to highlight the structure on the other side of the wheel frame in the embodiment of the present application.

[0029] Figure 5 It is a structural schematic diagram made to highlight the internal structure of the mounting block in the embodiment of the present application.

[0030] Figure 6 It is a structural schematic diagram made to highlight the bottom wall structure of the cold water tank in the embodiment of the present application.

[0031] Figure 7 It is a schematic diagram of the structure of the air cooling plate in the embodiment of the present application.

[0032] Figure 8 It is a schematic diagram of the structure of the supporting arc plate in the embodiment of the present application.

[0033] Fig. 9 It is a cross-sectional view of the wheel frame in the embodiment of the present application.

[0034] Fig.10 It is a structural schematic diagram used to highlight the demoulding claws in the embodiment of the present application.

[0035] Explanation of the reference numerals: 1. Machine; 11. Extrusion tube; 2. Wheel frame; 21. Mounting block; 211. Arc slide rail; 212. Slide; 213. Driving cylinder; 214. Injection head; 22. Mold; 221. Opening and closing groove; 23. Drainage pipe; 3. Cooling unit; 31. Cold water tank; 32. Air cooling assembly; 321. Air cooling plate; 322. Air outlet; 323. Spray nozzle; 33. Water cooling assembly; 331. Fixed rod; 332. Support arc plate; 333. Arc slide groove; 334. Slide; 335. Cold water pipe; 4. Demolding unit; 41. Demolding claw; 42. Conveyor frame; 421. Conveyor belt. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-10 This application is described in further detail.

[0037] The present application embodiment discloses a high-efficiency injection molding device using a mold wheel distribution. Figure 1 A high-efficiency injection molding equipment using mold wheel distribution includes a machine table 1, an extrusion tube 11 is horizontally arranged above the machine table 1, both ends of the extrusion tube 11 are fixed to the machine table 1, one end of the extrusion tube 11 is connected to a silo for receiving the transportation of injection molding materials, and the main body of the extrusion tube 11 is used for heating and transportation of materials; the extrusion tube 11 is provided with conveying parts such as an auger and a plunger; the melting and extrusion of the material in the extrusion tube 11 are common existing technologies in the field, and will not be elaborated in this application.

[0038] Reference Figure 2 and Figure 3 A support frame is vertically arranged on one side of the machine 1, and a vertically arranged wheel frame 2 is rotatably connected to the support frame. The wheel center height of the wheel frame 2 is flush with the height of the extrusion tube 11, and the wheel frame 2 is close to the plunger end inside the extrusion tube 11. Multiple groups of molds 22 are arranged on the wheel surface of the wheel frame 2, and each group of molds 22 is circumferentially distributed at equal angles along the wheel surface of the wheel frame 2; the body of the wheel frame 2 is provided with a sliding member corresponding to each mold 22 of each group of molds 22, so that each group of molds 22 can be opened and closed. Specifically, the sliding member includes an opening and closing groove 221 provided on the wheel frame 2 corresponding to the mold 22, and a sliding block is slidingly connected in the opening and closing groove 221, and an electric cylinder is arranged in the corresponding wheel frame 2 corresponding to each sliding block, and the piston rod of the electric cylinder extends into the opening and closing groove 221 and is connected to the sliding block in the opening and closing groove 221, and the sliding block is fixedly connected to the bottom of each mold 22 of each group of molds 22, and the sliding block is driven by the electric cylinder, thereby driving the mold 22 to open and close.

[0039] Reference Figure 1 and Figure 4 A servo motor for driving the wheel frame 2 is arranged at the wheel center portion of the wheel frame 2 on one side of the support frame. The motor drives the wheel frame 2 to rotate, thereby driving the mold 22 on the wheel frame 2 to rotate.

[0040] Reference Figure 1 and Figure 5 A mounting block 21 is provided at one end of the extrusion tube 11 close to the wheel frame 2. The mounting block 21 is vertically arranged, and its side wall close to the wheel frame 2 is in an arc shape that matches the curvature of the wheel frame 2 to maintain the distance between the side wall of the mounting block 21 and the wheel surface of the wheel frame 2; the interior of the mounting block 21 is hollowed out, and the discharge port of the extrusion tube 11 extends to the interior of the mounting block 21 to feed the high-temperature molten plastic into the interior of the mounting block 21; a vertically arranged arc-shaped slide rail 211 is fixedly connected between the inner top wall and the inner bottom wall of the mounting block 21, and the main body of the arc-shaped slide rail 211 is arranged in an arc shape, and two slide tables 212 are slidably connected to the arc-shaped slide rail 211, and the two slide tables 212 slide synchronously on the arc-shaped slide rail 2 11; in this embodiment, the slide 212 uses an electric slide 212 commonly used in machine tools; an injection head 214 is horizontally arranged at one end of the electric slide 212 near the wheel frame 2, and the injection head 214 is connected to the part of the extrusion tube 11 extending to the inside of the mounting block 21 through a hose, and the molten injection material inside the extrusion tube 11 is injected into the injection head 214; a driving cylinder 213 is horizontally arranged between the injection head 214 and the electric slide 212, the cylinder body of the driving cylinder 213 is fixedly connected to the electric slide 212, and the piston rod of the driving cylinder 213 is fixedly connected to the injection head 214, and the injection head 214 is fed toward the wheel frame 2 by the operation of the driving cylinder 213.

[0041] In this embodiment, the spacing between the two injection heads 214 is equal to the hole spacing of the injection holes on the two molds 22 on the wheel frame 2. Therefore, the injection material is transported to the injection head 214, driving the cylinder 213 to feed, and the two injection heads 214 are respectively inserted into the injection holes of the mold 22 to achieve injection molding of the two injection holes at the same time; and the setting of the electric slide 212 can make the injection head 214 synchronized with the mold 22 to make an arc slide.

[0042] Reference Figure 2 and Figure 6A cold water tank 31 is arranged above the wheel frame 2, and the cold water tank 31 is fixed on the ceiling of the workshop or other frames, which is not shown in this embodiment. The body of the cold water tank 31 is fan-shaped to fit the wheel frame 2, so that the bottom wall of the cold water tank 31 is parallel to the wheel surface of the rotating wheel frame 2, and cold water is contained in the cold water tank 31. Taking the angle as the standard, the distribution angle of the cold water tank 31 above the wheel frame 2 is not greater than 180°. Specifically, one end of the cold water tank 31 away from the machine 1 extends to the central horizontal plane of the wheel frame 2, and the end of the cold water tank 31 close to the machine 1 needs to give way to the mounting block 21, so it extends to the top of the mounting block 21. An air cooling component 32 and a water cooling component 33 are distributed on the bottom wall of the cold water tank 31. With the part directly above the axle of the wheel frame 2 as the dividing line, the air cooling component 32 is distributed in front of the rotation direction of the wheel frame 2, and the water cooling component 33 is distributed behind the rotation direction of the wheel frame 2. In other words, the distribution angle of the air cooling component 32 above the wheel frame 2 is less than 90°, and the distribution angle of the water cooling component 33 above the wheel frame 2 is 90°.

[0043] Reference Figure 6 and Figure 7 Two vertically arranged air cooling plates 321 are fixedly connected to the bottom of the cold water tank 31. The air cooling plates 321 are the main structure of the air cooling assembly 32. The top side edge of the air cooling plate 321 is fixedly connected to the bottom wall of the cold water tank 31. A groove is provided inside the air cooling plate 321. The top side edge of the air cooling plate 321 is connected to the portion connected to the cold water tank 31, so that the cold water inside the cold water tank 31 is transported to the inside of the air cooling plate 321. A plurality of spray ports 323 and air outlets 322 are provided on the opposite sides of the two air cooling plates 321. The spray ports 323 and air outlets 322 are distributed in multiple rows on the surface of the air cooling plates 321, and each row of spray ports 323 and air outlets 322 are alternately spaced. The spray port 323 is connected to the inner space of the air cooling plate 321, and the cold water inside the air cooling plate 321 is sprayed in the form of a spray. A pressurizing part is provided in the water tank corresponding to the spray port 323, and a micro water pump can be used in actual applications; an air cooling pipe is provided at the opposite sides of the two air cooling plates 321 corresponding to the air outlet 322, and the air cooling pipe extends to the inside of the air cooling plate 321 to conduct the air outlet 322. The part of the air cooling pipe extending to the inside of the air cooling plate 321 maintains a tubular structure, so that the air outlet 322 is isolated from the cold water inside the air cooling plate 321; one end of the air cooling pipe extends to the opposite sides of the two air cooling plates 321 and is connected to an external fan.

[0044] Therefore, after the injection head 214 completes the injection, the rotation of the wheel frame 2 causes the multiple molds 22 to be sequentially transported to the portion between the two air-cooling plates 321 , and the air outlet 322 of the air-cooling plate 321 transports cold air to the surface of the mold 22 , and the spray port 323 transports cold water mist to the surface of the mold 22 , thereby achieving preliminary air cooling of the molded parts.

[0045] Reference Figure 6 and Figure 8The water cooling assembly 33 specifically includes four fixing rods 331, which are arranged in an inclined and parallel manner, are evenly distributed on the edges of both sides of the cold water tank 31, and are fixed to the bottom wall of the cold water tank 31; taking one side as an example, the bottom ends of the two fixing rods 331 extend in the direction close to the wheel frame 2; a supporting arc plate 332 is slidably connected to the two fixing rods 331, and the supporting arc plate 332 is arranged in an arc shape, which can be regarded as a rectangular strip bent into an arc shape, and its curvature is equal to the curvature of the wheel frame 2; the supporting arc plate The two ends of 332 are penetrated and slidably connected to the two fixed rods 331; the bottom wall of the cold water tank 31 between the two fixed rods 331 is fixedly connected with two parallel driving cylinders 213, the cylinder body of the driving cylinder 213 is fixedly connected to the bottom wall of the cold water tank 31, and the end of the piston rod is fixedly connected to the top of the supporting arc plate 332; the driving cylinder 213 extends the piston rod, and the piston rod pushes the supporting arc plate 332 to move downward along the length direction of the fixed rod 331, and the fixed rod 331 plays a role in sliding guidance of the supporting arc plate 332.

[0046] Reference Figure 6 and Figure 8 The middle part of the plate surface of the supporting arc plate 332 is horizontally penetrated with an arc-shaped slide groove 333, and the arc-shaped slide groove 333 is concentric with the supporting arc plate 332. A slide rack 334 is slidably connected in the arc-shaped slide groove 333. The slide rack 334 is composed of a plurality of slide rods adapted to the arc-shaped slide groove 333. The slide rods are distributed parallel to the arc-shaped slide groove 333. The plurality of slide rods are connected by metal bent rods adapted to the curvature of the arc-shaped slide groove 333 to form the slide rack 334 as a whole; a through groove connecting the arc-shaped slide groove 333 is penetrated at the bottom side edge of the supporting arc plate 332, and a cold water pipe 335 is fixedly connected to the bottom side of each slide rod of the slide rack 334. The length direction of the cold water pipe 335 is equal to the length direction of the cooling channel on the mold 22, and the cold water pipe 335 is slidably connected in the through groove. Springs are provided at both end walls of the arc-shaped slide groove 333, one end of the spring is connected to the end wall of the supporting arc plate 332, and the other end of the spring is connected to both ends of the slide 334. In this embodiment, the spring is an arc spring.

[0047] Reference Figure 8The top of the cold water pipe 335 is connected to the cold water tank 31 through a hose. Therefore, when the above-mentioned molded part is injection molded, the driving cylinder 213 uses the cold water tank 31 as a support to drive the supporting arc plate 332 to move down along the fixed rod 331, thereby driving the cold water pipe 335 to move down and plug into the cooling channel of the mold 22, transporting cold water, and cooling the molded part through heat exchange; while cooling, the wheel frame 2 keeps rotating. Due to the plugging of the mold 22 with the cold water pipe 335, the opening of the arc-shaped slide groove 333 enables the cold water pipe 335 to rotate synchronously with the wheel frame 2 through the slide frame 334, without the need for the wheel frame 2 stops rotating, the slide 334 slides along the arc-shaped slide groove 333 while the spring is compressed. After the water cooling process is completed, the driving cylinder 213 drives the supporting arc plate 332 to move up and reset, and the cold water pipe 335 cancels the plugging of the cooling channel in the mold 22. When the cold water pipe 335 is pulled out of the mold 22, the push of the spring causes the slide 334 to drive the cold water pipe 335 to reset, and the wheel frame 2 continues to rotate to align the next mold 22 with the cold water pipe 335, and then the driving cylinder 213 drives the slide 334 to move down again to cool the molded part in the next mold 22.

[0048] In practical applications, the spring can be only arranged at the front end of the arc slot 333 in the rotation direction of the wheel frame 2. The two springs can increase the pulling force on the slide 334 at the other end of the arc slot 333 to improve the reset reliability of the slide 334.

[0049] Reference Fig. 9 In order to improve the structural strength of the wheel frame 2, the wheel frame 2 is solid inside, and a drainage pipe 23 is provided inside the wheel frame 2. The outlet of the drainage pipe 23 is provided at the wheel center of the wheel frame 2, and is used to discharge the water in the water cooling and air cooling processes on the wheel frame 2. In actual application, corresponding additional pipes can be plugged at the outlet of the drainage pipe 23 to improve the drainage capacity of the drainage pipe 23. The inlet of the drainage pipe 23 extends to both sides of the mold 22, and the cold water flowing out of the cooling channel of the mold 22 flows out of the wheel frame 2 from the drainage pipe 23. In actual application, the inlet of the wheel frame 2 corresponding to the drainage pipe 23 can be set in a funnel shape, that is, the height of the part of the wheel frame 2 surface corresponding to the inlet of the drainage pipe 23 is lowered.

[0050] Reference Fig.10A conveyor frame 42 is provided on the side of the wheel frame 2 away from the machine 1. A conveyor belt 421 is horizontally provided on the conveyor frame 42. The surface of the conveyor belt 421 extends to the bottom of the wheel frame 2, so that the molded parts inside the mold 22 after the mold is opened can be directly conveyed to the surface of the conveyor belt 421; the transmission direction of the conveyor belt 421 is not restricted and is determined according to the actual workshop conditions. A demoulding claw 41 is hinged on the edge of one side of the conveyor frame 42. The bottom end of the body of the demoulding claw 41 is hinged to the conveyor frame 42. The hinge axis is horizontal, so that the demoulding claw 41 rotates in the vertical plane. A rotating motor is provided at the hinge of the bottom of the demoulding claw 41. The body of the rotating motor is fixed to the conveyor frame 42. The rotating shaft of the rotating motor is connected to the hinge axis of the demoulding claw 41, and the claw body of the demoulding claw 41 extends toward the mold 22 on the wheel frame 2. In this embodiment, the demolding claw 41 uses an electric clamp, and the clamping direction of the electric clamp is perpendicular to the opening and closing direction of the mold 22. After the mold is opened, the electric clamp can clamp the molded part inside the mold 22, maintain the clamping state, and rotate around the hinged part at the bottom to transport the molded part to the surface of the conveyor belt 421.

[0051] The implementation principle of a high-efficiency injection molding device using a mold wheel distribution in an embodiment of the present application is as follows: when the wheel frame 2 rotates, the injection molding, air cooling, air cooling, and demolding processes are carried out in sequence inside the workshop.

[0052] The injection material is delivered to the injection head 214, driving the cylinder 213 to feed, and the two injection heads 214 are respectively inserted into the injection holes of the mold 22, and the two injection holes are injected at the same time. The setting of the electric slide 212 can make the injection head 214 slide in an arc synchronously with the mold 22, and keep injecting while the wheel frame 2 keeps rotating.

[0053] After the injection molding of the injection head 214 is completed, the rotation of the wheel frame 2 causes multiple molds 22 to be transported to the part between the two air-cooling plates 321 in sequence. The air outlet 322 of the air-cooling plate 321 transports cold air to the surface of the mold 22, and the spray port 323 transports cold water mist to the surface of the mold 22, thereby achieving preliminary air cooling of the molded parts.

[0054] After the mold 22 is air-cooled, it is transported to the support arc plate 332 as the wheel frame 2 rotates. The driving cylinder 213 uses the cold water tank 31 as support to drive the support arc plate 332 to move downward along the fixed rod 331, thereby driving the cold water pipe 335 to move downward to plug into the cooling channel of the mold 22, transport cold water, and cool the molded part through heat exchange; while cooling, the wheel frame 2 keeps rotating. Due to the plugging of the mold 22 and the cold water pipe 335, the opening of the arc-shaped slide groove 333 enables the cold water pipe 335 to rotate synchronously with the wheel frame 2 through the slide 334, without the need for the wheel frame 2 to stop rotating. The slide 334 slides along the arc-shaped slide groove 333 and the spring is compressed. After the water cooling process is completed, the driving cylinder 213 drives the supporting arc plate 332 to move up and reset. The cold water pipe 335 cancels the plugging of the cooling channel in the mold 22. When the cold water pipe 335 is pulled out of the mold 22, the push of the spring causes the slide 334 to drive the cold water pipe 335 to reset. The wheel frame 2 continues to rotate to align the next mold 22 with the cold water pipe 335, and then the driving cylinder 213 drives the slide 334 to move down again to cool the molded part in the next mold 22.

[0055] After the mold is opened, the electric clamp can clamp the molded part inside the mold 22, keep the clamping state and rotate around the hinged part at the bottom to convey the molded part to the surface of the conveyor belt 421.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-efficiency injection molding device using a mold wheel distribution, comprising an extrusion tube (11), wherein an injection molding head (214) is provided at one end of the extrusion tube (11), characterized in that: Also includes: A wheel frame (2) is vertically arranged on one side of the injection molding head (214); a plurality of groups of molds (22) are circumferentially distributed on the wheel surface of the wheel frame (2); and the plurality of groups of molds (22) are distributed in a vertical plane; the wheel frame (2) rotates along the wheel center so that the molds (22) correspond to the injection molding head (214) in sequence; A cooling unit (3) is fixed above the plurality of groups of the molds (22) on the wheel frame (2); The demoulding portion (4) is arranged on a side edge of the wheel frame (2) away from the injection head (214) and is used for conveying the finished product.

2. The high-efficiency injection molding equipment using mold wheel distribution according to claim 1 is characterized in that: Also includes: A mounting block (21) is vertically arranged on one side of the wheel frame (2) and fixedly connected to the extrusion tube (11); a mounting groove is vertically opened inside the mounting block (21); and a through groove communicating with the mounting groove is opened on a side wall of the mounting block (21) close to the wheel frame (2); An arc-shaped slide rail (211) is arranged in the installation groove, the arc-shaped slide rail (211) is bent into an arc shape, and the curvature of the arc-shaped slide rail (211) is equal to the curvature of the wheel frame (2); The slide table (212) slides on the arc-shaped slide rail (211), and the sliding of the slide table (212) is synchronized with the rotation of the wheel frame (2); the injection head (214) is fixedly connected to the slide table (212) and connected to the extrusion tube (11) through a hose.

3. The high-efficiency injection molding equipment using mold wheel distribution according to claim 2 is characterized in that: A plurality of slide tables (212) are slidably arranged on the arc-shaped slide rail (211), and the spacing between adjacent slide tables (212) is equal to the spacing between adjacent molds (22) on the wheel frame (2).

4. The high-efficiency injection molding equipment using mold wheel distribution according to claim 1 is characterized in that: The cooling unit (3) comprises: The air cooling plates (321) are vertically arranged on both sides of the mold (22); the plate surface of the air cooling plates (321) is bent into a fan shape to fit the wheel frame (2); the two air cooling plates (321) are provided with air outlets (322) and spray outlets (323) on the opposite sides; the air outlets (322) and the spray outlets (323) are alternately distributed along the bottom side edges of the air cooling plates (321).

5. The high-efficiency injection molding equipment using mold wheel distribution according to claim 4 is characterized in that: The cooling unit (3) further comprises: A plurality of cold water pipes (335) are vertically arranged above the wheel frame (2), and are arranged one by one corresponding to the cooling channels of the mold (22) behind the air cooling plate (321) in the rotation direction of the wheel frame (2). A vertical driving member is arranged above the wheel frame (2) corresponding to the cold water pipe (335), which drives the cold water pipe (335) to move downward and plug into the cooling channel of the mold (22); The cold water tank (31) contains cold water, and a soft water pipe connected to the interior is arranged at the bottom, one end of the soft water pipe is connected to the top of the cold water pipe (335), connecting the cold water pipe (335) to the cold water tank (31).

6. The high-efficiency injection molding equipment using mold wheel distribution according to claim 5, characterized in that: The circumferential distribution angles of the air cooling plate (321) and the cold water pipe (335) on the wheel frame (2) do not exceed 90°.

7. The high-efficiency injection molding equipment using mold wheel distribution according to claim 5, characterized in that: The vertical drive member comprises: A supporting arc plate (332) is vertically arranged between the cold water tank (31) and the wheel frame (2); an arc-shaped slide groove (333) is provided on the supporting arc plate (332); and the curvature of the arc-shaped slide groove (333) is equal to the curvature of the wheel frame (2); A slide (334) is slidably connected to the arc-shaped slide groove (333), and the slide (334) is connected to a plurality of cold water pipes (335); A driving cylinder (213) is vertically arranged downward above the supporting arc plate (332); the cylinder body of the driving cylinder (213) is fixed, and the end of the piston rod is fixedly connected to the top of the supporting arc plate (332) to drive the supporting arc plate (332) to move downward; A plurality of fixing rods (331) are arranged parallel to the bottom wall of the water tank, and both ends of the supporting arc plate (332) are slidably connected to the fixing rods (331).

8. The high-efficiency injection molding equipment using mold wheel distribution according to claim 7, characterized in that: The fixing rod (331) is provided with a spring, one end of the spring is connected to the rod body of the fixing rod (331), and the other end is connected to the slide frame (334), and the compression direction of the spring is parallel to the horizontal tangent direction of the rotation direction of the wheel frame (2).

9. The high-efficiency injection molding equipment using mold wheel distribution according to claim 1, characterized in that: The demoulding part (4) comprises: A conveyor belt (421) is horizontally arranged on one side of the wheel frame (2); The demoulding claw (41) has a claw body part opening upward and a bottom end hinged to the conveyor belt (421). The claw body of the demoulding claw (41) rotates in a vertical plane around the hinged end.

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