A precision thermoplastic material forming device and manufacturing method thereof

Abstract

The present invention relates to the technical field of thermoplastic material molding, and in particular to a precision thermoplastic material molding device and a manufacturing method thereof. The present invention provides such a precision thermoplastic material molding device, comprising: a female mold fixing plate, wherein guide rods are directly arranged at the four corner positions between the female mold fixing plate and the male mold fixing plate, a female mold plate is installed on the female mold fixing plate, an extrusion tube for extruding hot melt plastic is embedded between the female mold fixing plate and the middle of the female mold plate, and a water circulation passage is arranged in the female mold. This device realizes efficient and precise control of thermoplastic material molding through a carefully designed mechanical structure and hydraulic transmission system. Specifically, the movable plate is driven to move left and right by the hydraulic transmission component of the machine tool, which not only realizes the precise mold closing and opening of the female mold plate and the male mold plate, but also can evenly spray the mold with a release agent before mold closing, effectively improving the service life of the mold and the quality of the molded plastic products.

Description

Technical Field

[0001] The invention relates to the technical field of thermoplastic material molding, and in particular to a precision thermoplastic material molding device and a manufacturing method thereof. Background Art

[0002] Injection molding is a process widely used in the manufacture of plastic products. It injects thermoplastic material into a mold and forms the desired shape after cooling. However, traditional injection molding machines have some problems in practical applications, such as difficulty in demoulding, production traces caused by material removal, slight deformation of the product, and insufficient precision. These problems not only affect the quality of the product, but also increase production costs and time.

[0003] As the market demand for high-precision, high-quality plastic products grows, the demand for precision injection molding equipment that can solve the above problems is also increasing. In order to meet this demand, a precision thermoplastic material molding device and its manufacturing method have been developed to improve the precision of injection molded products, optimize the demoulding process, and improve production efficiency. Summary of the invention

[0004] In order to overcome the shortcomings of demoulding difficulties, production marks caused by material removal resulting in slight deformation of the product and insufficient precision, the technical problem of the present invention is to provide a precision thermoplastic material molding device and a manufacturing method thereof.

[0005] Technical solution: A precision thermoplastic material forming device, including a female mold fixing plate, a male mold fixing plate, a guide rod, a female mold plate, a pipe joint, a movable plate, a support plate, a pad, an ejector plate, a guide rod, a male mold plate, a guide pin, a molding column, a sliding ejector, an air ejector assembly, an adjustment assembly and a spray assembly. Guide rods are directly arranged at four corner positions between the female mold fixing plate and the male mold fixing plate. A female mold plate is installed on the female mold fixing plate. An extrusion tube for extruding hot-melt plastic is embedded between the female mold fixing plate and the middle of the female mold plate. A water circulation passage is arranged in the female mold plate. A pipe joint matching the water circulation passage is arranged on the female mold plate. The pipe joint is connected to the water inlet pipe and the water outlet pipe of the external cooling water delivery pipeline. The four A movable plate is slidably arranged between the guide rods, a supporting plate is arranged on the left side of the movable plate, a pad is symmetrically installed on the left side of the supporting plate, a male mold plate is arranged between the left sides of the two pad plates, guide rods are arranged at the four corners on the right side of the male mold plate, an ejection plate is slidably arranged on the guide rod, guide pins are arranged at the four corners on the left side of the male mold plate, and guide holes matching the guide pins are correspondingly opened on the female mold plate, a forming column is embedded on the male mold plate, the middle part of the forming column is hollowed out, a sliding ejector is arranged in the forming column, a gas ejector assembly capable of driving the sliding ejector assembly to push the material is arranged on the pad, an adjusting assembly capable of controlling gas delivery is arranged on the upper part of the gas ejector assembly, and a spray assembly capable of spraying a release agent is symmetrically arranged on the right side of the female mold fixing plate.

[0006] In addition, it is particularly preferred that the sliding top member includes an annular cylinder body, a movable column, a conical block, a clamping column and a first elastic member, an annular cylinder body is embedded in the molding column, the port position of the annular cylinder body is an inverted cone, a sliding movable column is inside the annular cylinder body, a conical block is arranged on the movable column, the conical block cooperates with the inverted cone of the annular cylinder body, the annular cylinder body has symmetrical sliding grooves up and down, the movable column has symmetrical clamping columns, the clamping columns cooperate with the sliding grooves, the first elastic member is sleeved on the clamping column, one end of the first elastic member is connected to the movable column, and the other end of the first elastic member is connected to the annular cylinder body.

[0007] In addition, it is particularly preferred that the gas cap assembly includes an air box, an air port, a hose, a pipeline, a regulating valve and an interface, the air box is arranged on the side wall of the pad, an air duct connected to the forming column is opened on the male template, an air port is arranged at the air duct outlet position on the male template, the air port is connected to a hose, the hose is connected to the air box, a pipeline is connected to the top of the air box, an interface is embedded in the pipeline laterally, and a regulating valve is arranged on the interface.

[0008] In addition, it is particularly preferred that the adjustment component includes a mounting ring, a sliding rod, a guide wheel, a limiting top block, a second elastic member and a guide frame, a mounting ring is arranged on the top of the pipe, a sliding rod is slidably arranged in the mounting ring, a straight groove is vertically opened on the sliding rod, a guide wheel is rotatably arranged at the lower part of the straight groove of the sliding rod, a limiting top block is arranged at the bottom of the sliding rod, a second elastic member is arranged on the limiting top block, the second elastic member is connected to the lower part of the pipe, a guide frame is symmetrically arranged on the front and back of the upper right side of the mother mold fixing plate, a trapezoidal groove is opened in the middle side of the bottom of the guide frame, and the guide frame passes through the straight groove of the sliding rod.

[0009] In addition, it is particularly preferred that the lower inner portion of the pipe is a tapered opening, the bottom of the limiting top block is tapered, and the limiting top block cooperates with the tapered opening of the lower inner portion of the pipe.

[0010] In addition, it is particularly preferred that the spraying assembly includes a connecting frame, a track, a rack, a gear, a fixed rod, a swing frame, a slide rail, a moving block, a spray tube, a nozzle, a belt transmission assembly, a motor slide shaft, a wedge-shaped top block and a pneumatic spring, a connecting frame is symmetrically arranged in the middle of the right side of the mother mold fixing plate, a track is arranged on the connecting frame, a rack is slidably arranged on the track, a fixed rod is symmetrically arranged in the middle of the right side of the mother mold fixing plate, the fixed rod passes through the moving plate, a swing frame is rotatably arranged on the fixed rod, a gear is arranged on the swing frame, and the gear is meshed with the rack A slide rail is provided on the side where the swing frames are close to each other, a moving block is slidably provided on the slide rail, a spray pipe is embedded on the moving block, and a spray head is symmetrically connected to the spray pipe. A belt transmission assembly is provided on the swing frame, and the belt transmission assembly is connected to the moving block. A motor is provided on the swing frame, and the motor is connected to the belt transmission assembly. A sliding shaft is provided on the rack, and wedge-shaped top blocks are provided on the front and rear side walls of the male template, and the wedge-shaped top blocks cooperate with the sliding shaft. A pneumatic spring is rotatably connected to the guide rod, and the pneumatic spring is rotatably connected to the end of the swing frame away from the slide rail.

[0011] In addition, it is particularly preferred that the belt transmission assembly consists of two pulleys and a flat belt, two pulleys are rotatably arranged on the swing frame, a flat belt is arranged between the two pulleys, and the output shaft of the motor is connected to the connecting shaft of one of the pulleys through a coupling.

[0012] A manufacturing method for precision thermoplastic material molding, specifically comprising the following steps:

[0013] S1. Install the female mold fixing plate and the male mold fixing plate on the machine tool by bolts, connect the movable plate and the hydraulic transmission group of the machine tool, connect the female mold fixing plate and the plastic extruder, connect the spray pipe and the external release agent input pipeline, connect the interface and the external air pipeline, connect the pipe joint on the female template and the water inlet and outlet pipelines of the external cooling water delivery pipeline; S2. Start the control panel of the machine tool, the hydraulic transmission component drives the movable plate to move left, sprays the female template and the male template with the release agent through the spray pipe and the nozzle, starts the motor to rotate forward and reverse, and drives the movable block to move up and down through the drive of the pulley and the flat belt to achieve uniform spraying; S3. Continue to control the hydraulic transmission component to push the movable plate to move left until the wedge-shaped top block on the male template squeezes the sliding shaft, drives the rack and the gear to rotate, and then causes the swing frame to drive the slide rail and the upper components to rotate together away from the female template, and the hydraulic transmission component drives the movable plate to drive the male template and the female template to close the mold; S4. The plastic extruder injects the hot-melt plastic material through the injection port of the mother mold fixing plate and the mother mold plate; S5. Cooling water is transported to the mother mold plate for circulation to realize the cooling and molding of the mold; S6. After molding is completed, the hydraulic transmission component of the machine tool is controlled by the control panel to drive the movable plate to continue to move to the right, and the pneumatic spring drives the swing frame, the slide rail and the upper parts to rotate and reset together close to the mother mold plate; S7. When the guide wheel of the slide rod slides to the trapezoidal groove of the guide frame, the second elastic member is reset, driving the slide rod and the limit top block to move upward, so that the external air pipe can be injected with gas, and the gas is injected into the air box through the interface and the pipeline, and then enters the molding column through the air port to increase the air pressure, the movable column moves to the left, the first elastic member is compressed, the clamping column is clamped into the slide groove of the annular cylinder body, and the conical block pushes out the molded plastic product as the movable column moves, and the gas is also blown out through the annular cylinder body to separate the molded plastic product from the male mold plate; S8. Take out the molded plastic product.

[0014] Compared with the prior art, the present invention has the following advantages: 1. This device realizes efficient and precise control of thermoplastic material molding through a carefully designed mechanical structure and hydraulic transmission system. Specifically, the hydraulic transmission assembly of the machine tool drives the movable plate to move left and right, which not only realizes the precise mold closing and opening of the female mold plate and the male mold plate, but also can evenly spray the mold with a release agent before closing the mold, effectively improving the service life of the mold and the quality of the molded plastic products. At the same time, the motor drives the nozzle to move up and down through the transmission of the pulley and the flat belt, ensuring the uniform distribution of the release agent on the mold surface and further improving the demolding effect.

[0015] 2. After the molding of the plastic product is completed, this device realizes a rapid unloading process through a clever pneumatic and mechanical linkage design. Specifically, when the guide wheel of the slide rod slides to the trapezoidal groove of the guide frame, the second elastic member resets and drives the slide rod and the limit top block to move upward, thereby opening the gas injection channel. The external gas is injected into the air box through the pipeline and enters the molding column through the air port, which increases the air pressure in the molding column and ejects the molded plastic product. At the same time, the gas is also blown out through the annular cylinder body, filling the space between the male mold plate and the molded plastic product, blowing the molded plastic product out of the male mold plate, and effectively reducing the generation of stripping marks. This design not only improves the unloading efficiency, but also ensures the integrity and appearance quality of the molded plastic products, providing a strong guarantee for subsequent processing and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional exploded structure of the sliding top member of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the adjustment component of the present invention.

[0020] Figure 5 This is a first installation viewing angle diagram of the spray assembly of the present invention.

[0021] Figure 6 This is a second installation viewing angle diagram of the spray assembly of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the spraying assembly of the present invention.

[0023] In the accompanying drawings: 1-female mold fixing plate, 2-male mold fixing plate, 3-guide rod, 4-female mold plate, 5-pipe joint, 6-movable plate, 7-support plate, 8-pad, 81-ejection plate, 9-guide rod, 10-male mold plate, 11-guide pin, 12-molding column, 13-sliding top piece, 131-annular cylinder, 132-movable column, 133-conical block, 134-slide groove, 135-clamping column, 136-first elastic member, 14-gas top assembly, 141-gas box, 142-gas port, 143-hose, 144-pipeline, 145-regulating valve, 146 -interface, 15-adjustment assembly, 151-mounting ring, 152-slide rod, 153-guide wheel, 154-limiting top block, 155-second elastic member, 156-guide frame, 16-spraying assembly, 161-connecting frame, 162-track, 163-rack, 164-fixed rod, 1641-gear, 165-swing frame, 166-slide rail, 167-moving block, 168-spraying tube, 169-spray head, 1610-belt transmission assembly, 1611-motor, 1612-slide shaft, 1613-wedge-shaped top block, 1614-pneumatic spring. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Example: Figure 1 and Figure 2As shown, a precision thermoplastic material molding device and a manufacturing method thereof include a female mold fixing plate 1, a male mold fixing plate 2, a guide rod 3, a female mold plate 4, a pipe joint 5, a movable plate 6, a support plate 7, a pad 8, an ejection plate 81, a guide rod 9, a male mold plate 10, a guide pin 11, a molding column 12, a sliding ejector 13, an air ejector assembly 14, an adjustment assembly 15 and a spraying assembly 16, the four corner positions between the female mold fixing plate 1 and the male mold fixing plate 2 are directly provided with guide rods 3, the female mold fixing plate 1 and the male mold fixing plate 2 are installed in the machine tool by bolts, the female mold plate 4 is installed on the female mold fixing plate 1 by bolts, an extrusion tube for extruding hot melt plastic is embedded between the female mold fixing plate 1 and the middle part of the female mold plate 4, a water circulation passage is provided in the female mold plate 4, a pipe joint 5 matched with the water circulation passage is provided on the female mold plate 4, and the pipe joint 5 is connected to the water inlet of the external cooling water delivery pipeline The pipeline is connected to the water outlet pipeline, a movable plate 6 is slidably arranged between the four guide rods 3, a support plate 7 is arranged on the left side of the movable plate 6, a pad 8 is symmetrically installed on the left side of the support plate 7, a male template 10 is arranged between the left sides of the two pads 8, guide rods 9 are arranged at the four corner positions on the right side of the male template 10, and an ejection plate 81 is slidably arranged on the guide rod 9. Guide pins 11 are arranged at the four corner positions on the left side of the male template 10, and guide holes matching the guide pins 11 are opened on the female template 4 accordingly. A molding column 12 is embedded on the male template 10, the middle part of the molding column 12 is hollowed out, and a sliding top piece 13 is arranged in the molding column 12. A gas top assembly 14 that can drive the sliding top piece 13 to push the material is arranged on the pad 8, and an adjusting assembly 15 that can control the gas delivery is arranged on the upper part of the gas top assembly 14. A spray assembly 16 that can spray a release agent is symmetrically arranged on the right side of the female mold fixing plate 1.

[0026] like Figure 2 and Figure 3 As shown, the sliding top member 13 includes an annular cylinder body 131, a moving column 132, a conical block 133, a clamping column 135 and a first elastic member 136. The annular cylinder body 131 is embedded in the molding column 12. The port position of the annular cylinder body 131 is an inverted cone. The sliding moving column 132 is inside the annular cylinder body 131. The moving column 132 is provided with a conical block 133. The conical block 133 and the inverted cone of the annular cylinder body 131 are closely matched. The annular cylinder body 131 is symmetrically provided with sliding grooves 134 up and down. The moving column 132 is symmetrically provided with clamping columns 135. The clamping columns 135 cooperate with the sliding grooves 134. The clamping column 135 is sleeved with a first elastic member 136. The first elastic member 136 is a compression spring. One end of the first elastic member 136 is connected to the moving column 132, and the other end of the first elastic member 136 is connected to the annular cylinder body 131.

[0027] like Figure 2 and Figure 4As shown, the air cap assembly 14 includes an air box 141, an air port 142, a hose 143, a pipe 144, a regulating valve 145 and an interface 146. The air box 141 is arranged on the side wall of the pad 8, the male template 10 is provided with an air duct connected to the forming column 12, the male template 10 is provided with an air port 142 at the air duct outlet position, the air port 142 is connected with a hose 143, the hose 143 is connected to the air box 141, the top of the air box 141 is connected with a pipe 144, the pipe 144 is laterally embedded with an interface 146, the interface 146 is provided with a regulating valve 145, and the regulating valve 145 is used to adjust the external air intake flow rate.

[0028] like Figure 1 , Figure 4 and Figure 5 As shown, the adjustment assembly 15 includes a mounting ring 151, a slide bar 152, a guide wheel 153, a limit top block 154, a second elastic member 155 and a guide frame 156. The top of the pipe 144 is provided with a mounting ring 151, and the slide bar 152 is slidably provided in the mounting ring 151. The slide bar 152 is vertically provided with a slot, and the lower part of the slot of the slide bar 152 is rotatably provided with a guide wheel 153. The bottom of the slide bar 152 is provided with a limit top block 154, and the lower part of the pipe 144 is a conical mouth. The bottom of block 154 is conical, and the limiting top block 154 cooperates with the conical mouth at the lower inner part of the pipe 144. A second elastic member 155 is arranged on the limiting top block 154, and the second elastic member 155 is a compression spring. The second elastic member 155 is connected to the lower inner part of the pipe 144. A guide frame 156 is symmetrically arranged front and back on the upper right side of the mother mold fixing plate 1. A trapezoidal groove is opened on the middle side of the bottom of the guide frame 156. The guide frame 156 passes through the straight groove of the sliding rod 152, and the guide wheel 153 cooperates with the guide frame 156 in a sliding manner.

[0029] like Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, the spraying assembly 16 includes a connecting frame 161, a track 162, a rack 163, a gear 1641, a fixed rod 164, a swing frame 165, a slide rail 166, a moving block 167, a spraying tube 168, a nozzle 169, a belt transmission assembly 1610, a motor 1611, a slide shaft 1612, a wedge-shaped top block 1613 and a pneumatic spring 1614. The connecting frame 161 is symmetrically provided in the middle of the right side of the mother mold fixing plate 1 through bolt connection. The connecting frame 161 A track 162 is provided on the upper surface by bolt connection, a rack 163 is slidably provided on the track 162, a fixing rod 164 is symmetrically provided in the front and rear of the middle part of the right side of the mother mold fixing plate 1, the fixing rod 164 penetrates the moving plate 6, a swing frame 165 is rotatably provided on the fixing rod 164, a gear 1641 is provided on the swing frame 165, the gear 1641 is meshed with the rack 163, and a slide rail 166 is provided on the side of the swing frame 165 close to each other, and a sliding rail 166 is slidably provided on the slide rail 166. A moving block 167 is provided, a spraying pipe 168 is embedded in the moving block 167, and a spraying head 169 is symmetrically connected to the spraying pipe 168. A belt transmission component 1610 is provided on the swing frame 165, and the belt transmission component 1610 is connected to the moving block 167. A motor 1611 is provided on the swing frame 165, and the motor 1611 is connected to the belt transmission component 1610. The belt transmission component 1610 consists of two pulleys and a flat belt. Two pulleys are provided, a flat belt is provided between the two pulleys, the output shaft of the motor 1611 is connected to the connecting shaft of one of the pulleys through a coupling, a sliding shaft 1612 is provided on the rack 163, and wedge-shaped top blocks 1613 are provided on the front and rear side walls of the male template 10, the wedge-shaped top blocks 1613 cooperate with the sliding shaft 1612, and a pneumatic spring 1614 is rotatably connected to the guide rod 3, and the pneumatic spring 1614 is rotatably connected to the end of the swing frame 165 away from the slide rail 166.

[0030] First, the female mold fixing plate 1 and the male mold fixing plate 2 of the device are installed on the machine tool by bolts, the moving plate 6 is connected to the hydraulic transmission component of the machine tool, the extrusion pipe of the female mold fixing plate 1 is connected to the plastic extruder, the spray pipe 168 is connected to the external release agent input pipeline 144, the pipe joint 5 on the female template 4 is connected to the water inlet pipeline and the water outlet pipeline of the external cooling water delivery pipeline, and the interface 146 is connected to the external gas pipeline 144. Then the staff starts the control panel of the machine tool, the hydraulic transmission component of the machine tool drives the moving plate 6 to move to the left, and then controls the external release agent to be injected and sprayed on the female template 4 and the male template 10 through the spray pipe 168 and the nozzle 169, and at the same time, the motor 1611 is started through the control panel to rotate forward and reverse, and the motor 1611 drives the pulley to rotate, and through the transmission of the pulley and the flat belt, the moving block 167 is driven to move up and down, and then the nozzle 169 can spray the female template 4 and the male template 10 evenly. At the same time, since the hydraulic transmission component of the machine tool pushes the movable plate 6 to continue to move left, when the wedge-shaped top block 1613 on the male mold plate 10 squeezes the sliding shaft 1612, the inclined surfaces of the two wedge-shaped top blocks 1613 squeeze the corresponding sliding shaft 1612, and the two sliding shafts 1612 drive the rack 163 to move backwards, and then the rack 163 drives the gear 1641 to rotate, and the gear 1641 drives the swing frame 165 to rotate, and then the swing frame 165 drives the slide rail 166 and the upper parts to rotate together away from the female mold plate 4, and the pneumatic spring 1614 is deformed, and then the hydraulic transmission component pushes the movable plate 6 to drive the male mold plate 10 and the female mold plate 4 to close the mold, and then the plastic extruder injects the hot melt plastic material through the injection port of the female mold fixing plate 1 and the female mold plate 4, and the cooling water is transported to the female mold plate 4 for circulation to realize the cooling and molding of the mold. After the molding is completed, the hydraulic transmission component of the machine tool is controlled by the control panel to drive the movable plate 6 to continue to move right, and the molded plastic product moves to the right, and the pneumatic spring 1614 The swing frame 165 drives the slide rail 166 and the upper parts to rotate and reset together and close to the mother template 4. When the guide wheel 153 of the slide bar 152 slides to the trapezoidal groove of the guide frame 156, the second elastic member 155 is reset, thereby driving the slide bar 152 and the limit top block 154 to move upward. The conical part at the bottom of the limit top block 154 no longer blocks the conical mouth of the pipeline 144, and the external air pipe is injected with gas. The gas is injected into the air box 141 through the interface 146 and the pipeline 144. Then the gas enters the molding column 12 through the air port 142. The increased air pressure in the molding column 12 will push the movable column 132 to move to the left, the first elastic member 136 is compressed, and the clamping column 135 is clamped into the slide groove 134 of the annular cylinder body 131. The conical block 133 will push out the molded plastic product as the movable column 132 moves, and the gas is also blown out through the annular cylinder body 131, and then the gas fills the space between the male template 10 and the molded plastic product, blowing the molded plastic product away from the male template 10.After taking out the molded plastic product, the control panel is used to control the external gas power element to stop working, so that the gas is no longer blown in. The staff repeats the previous operation through the control panel program, and can control the hydraulic transmission component again to push the movable plate 6 to continue to move to the left, so as to carry out the re-molding process of the thermoplastic product. The device has a simple structure and can achieve rapid unloading. The molded plastic product is blown away by the ejected gas, reducing the stripping marks on the molded plastic product. It is also convenient to spray the release agent on the female template 4 and the male template 10, which is beneficial to the stripping operation of the molded plastic product.

[0031] A precision thermoplastic material forming device specifically comprises the following steps:

[0032] S1. Install the female mold fixing plate 1 and the male mold fixing plate 2 on the machine tool by bolts, connect the movable plate 6 with the hydraulic transmission group of the machine tool, connect the female mold fixing plate 1 with the plastic extruder, connect the spray pipe 168 with the external release agent input pipeline 144, connect the interface 146 with the external air pipeline 144, connect the pipe joint 5 on the female mold plate 4 with the water inlet pipeline and the water outlet pipeline of the external cooling water delivery pipeline; S2. Start the control panel of the machine tool, the hydraulic transmission component drives the movable plate 6 to move to the left, spray the release agent on the female mold plate 4 and the male mold plate 10 through the spray pipe 168 and the nozzle 169, start the electric 1611 to rotate forward and reverse, and drive the movable block 167 to move up and down through the transmission of the pulley and the flat belt to achieve uniform spraying;

[0033] S3, continue to control the hydraulic transmission component to push the movable plate 6 to move to the left, until the wedge-shaped top block 1613 on the male template 10 squeezes the sliding shaft 1612, driving the rack 163 and the gear 1641 to rotate, and then the swing frame 165 drives the slide rail 166 and the upper parts to rotate away from the female template 4, and the hydraulic transmission component pushes the movable plate 6 to drive the male template 10 and the female template 4 to close the mold; S4, the plastic extruder injects the hot melt plastic material through the female mold fixing plate 1 and the injection port of the female template 4; S5, the cooling water is transported to the female template 4 for circulation to realize the cooling and molding of the mold; S6, after the molding is completed, the hydraulic transmission component of the machine tool is controlled by the control panel to drive the movable plate 6 to continue to move to the right, and the pneumatic spring 1614 drives the swing frame 165, the slide rail 166 and the upper The parts on the side rotate together and reset close to the female template 4; S7, when the guide wheel 153 of the sliding rod 152 slides to the trapezoidal groove of the guide frame 156, the second elastic member 155 resets, driving the sliding rod 152 and the limiting top block 154 to move upward, so that the external air pipe can be injected with gas, and the gas is injected into the air box 141 through the interface 146 and the pipeline 144, and then enters into the molding column 12 through the air port 142, thereby increasing the air pressure, and the moving column 132 moves to the left. The first elastic member 136 is compressed, and the clamping column 135 is clamped into the slide groove 134 of the annular cylinder body 131. The conical block 133 pushes out the molded plastic product as the moving column 132 moves, and the gas is also blown out through the annular cylinder body 131, so that the molded plastic product is separated from the male template 10; S8, take out the molded plastic product.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A precision thermoplastic material forming device, characterized by: The invention comprises a female mold fixing plate (1), wherein guide rods (3) are directly arranged at four corner positions between the female mold fixing plate (1) and the male mold fixing plate (2), a female mold plate (4) is installed on the female mold fixing plate (1), an extrusion tube for extruding hot melt plastic is embedded between the female mold fixing plate (1) and the middle part of the female mold plate (4), a water circulation passage is arranged in the female mold plate (4), a pipe joint (5) matched with the water circulation passage is arranged on the female mold plate (4), the pipe joint (5) is connected with the water inlet pipe and the water outlet pipe of the external cooling water delivery pipe, a movable plate (6) is slidably arranged between the four guide rods (3), a support plate (7) is arranged on the left side of the movable plate (6), and the left side of the support plate (7) is symmetrically installed front and back. A backing plate (8) is provided, a male mold plate (10) is provided between the left sides of the two backing plates (8), a guide rod (9) is provided at the four corner positions on the right side of the male mold plate (10), an ejection plate (81) is slidably provided on the guide rod (9), a guide pin (11) is provided at the four corner positions on the left side of the male mold plate (10), a guide hole correspondingly provided on the female mold plate (4) to cooperate with the guide pin (11), a molding column (12) is embedded on the male mold plate (10), the middle part of the molding column (12) is hollowed out, a sliding ejector (13) is provided in the molding column (12), and a gas ejector assembly (14) capable of driving the sliding ejector (13) to eject material is provided on the backing plate (8), and the gas ejector assembly (14) includes an air box ( 141), the gas box (141) is arranged on the side wall of the pad (8), the air channel connected to the forming column (12) is opened on the male template (10), the air channel outlet position on the male template (10) is provided with an air port (142), the air port (142) is connected to a hose (143), the hose (143) is connected to the gas box (141), the top of the gas box (141) is connected to a pipeline (144), the pipeline (144) is laterally embedded with an interface (146), the interface (146) is provided with a regulating valve (145), and the upper part of the gas cap assembly (14) is provided with a regulating assembly (15) capable of controlling gas delivery, and the regulating assembly (15) includes a mounting ring (151) A mounting ring (151) is provided at the top of the pipe (144), a slide rod (152) is slidably provided in the mounting ring (151), a straight groove is vertically provided on the slide rod (152), a guide wheel (153) is rotatably provided at the lower part of the straight groove of the slide rod (152), a limited top block (154) is provided at the bottom of the slide rod (152), a second elastic member (155) is provided on the limited top block (154), and the second elastic member (155) is connected to the lower part of the pipe (144), a guide frame (156) is symmetrically provided at the upper right side of the mother mold fixing plate (1), a trapezoidal groove is provided at the middle side of the bottom of the guide frame (156), and the guide frame (156) passes through the straight groove of the slide rod (152),A spraying assembly (16) capable of spraying a mold release agent is symmetrically arranged on the right side of the mother mold fixing plate (1).

2. A precision thermoplastic material forming device according to claim 1, characterized in that: The sliding top member (13) comprises an annular cylinder body (131), the annular cylinder body (131) is embedded in the molding column (12), the port position of the annular cylinder body (131) is inverted cone, a sliding movable column (132) is arranged in the annular cylinder body (131), a conical block (133) is arranged on the movable column (132), the conical block (133) cooperates with the inverted cone of the annular cylinder body (131), the annular cylinder body (131) is symmetrically provided with sliding grooves (134) in the upper and lower parts, the movable column (132) is symmetrically provided with clamping columns (135), the clamping columns (135) cooperate with the sliding grooves (134), a first elastic member (136) is sleeved on the clamping column (135), one end of the first elastic member (136) is connected to the movable column (132), and the other end of the first elastic member (136) is connected to the annular cylinder body (131).

3. A precision thermoplastic material forming device according to claim 2, characterized in that: The lower inner portion of the pipe (144) is a tapered opening, the bottom of the limiting top block (154) is tapered, and the limiting top block (154) cooperates with the tapered opening at the lower inner portion of the pipe (144).

4. A precision thermoplastic material forming device according to claim 3, characterized in that: The spraying assembly (16) comprises a connecting frame (161), the connecting frame (161) is symmetrically arranged in the front and rear middle part of the right side of the mother mold fixing plate (1), the connecting frame (161) is provided with a track (162), and the track (162) is slidably provided with a rack (163), a fixing rod (164) is symmetrically arranged in the front and rear middle part of the right side of the mother mold fixing plate (1), the fixing rod (164) passes through the movable plate (6), a swing frame (165) is rotatably arranged on the fixing rod (164), a gear (1641) is arranged on the swing frame (165), and the gear (1641) is meshed with the rack (163), and a slide rail (166) is arranged on the side close to each other, and a moving block (167) is slidably arranged on the slide rail (166), and the moving block (167) is embedded A spray pipe (168) is arranged in an inserted manner, and a spray head (169) is symmetrically connected to the spray pipe (168); a belt transmission component (1610) is arranged on the swing frame (165), and the belt transmission component (1610) is connected to the moving block (167); a motor (1611) is arranged on the swing frame (165), and the motor (1611) is connected to the belt transmission component (1610); a sliding shaft (1612) is arranged on the rack (163); front and rear side walls of the male template (10) are both provided with wedge-shaped top blocks (1613), and the wedge-shaped top blocks (1613) cooperate with the sliding shaft (1612); a pneumatic spring (1614) is rotatably connected to the guide rod (3), and the pneumatic spring (1614) is rotatably connected to the end of the swing frame (165) away from the slide rail (166).

5. A precision thermoplastic material forming device according to claim 4, characterized in that: The belt transmission assembly (1610) is composed of two pulleys and a flat belt. The swing frame (165) is rotatably provided with two pulleys, a flat belt is provided between the two pulleys, and the output shaft of the motor (1611) is connected to the connecting shaft of one of the pulleys via a coupling.

6. A method for manufacturing precision thermoplastic material molding, characterized in that: A precision thermoplastic material forming device according to claim 5 specifically comprises the following steps: S1, installing the female mold fixing plate (1) and the male mold fixing plate (2) on the machine tool by means of bolts, connecting the movable plate (6) to the hydraulic transmission group of the machine tool, connecting the female mold fixing plate (1) to the plastic extruder, connecting the spray pipe (168) to the external release agent input pipeline (144), connecting the interface (146) to the external air pipeline (144), and connecting the pipe joint (5) on the female mold plate (4) to the water inlet pipeline and the water outlet pipeline of the external cooling water delivery pipeline; S2, start the control panel of the machine tool, the hydraulic transmission component drives the movable plate (6) to move to the left, spray the release agent on the female template (4) and the male template (10) through the spray pipe (168) and the spray head (169), start the motor (1611) to rotate forward and reverse, and drive the movable block (167) to move up and down through the transmission of the pulley and the flat belt to achieve uniform spraying; S3, continue to control the hydraulic transmission component to push the movable plate (6) to move leftward until the wedge-shaped top block (1613) on the male mold plate (10) squeezes the slide shaft (1612), driving the rack (163) and the gear (1641) to rotate, thereby causing the swing frame (165) to drive the slide rail (166) and the upper parts to rotate away from the female mold plate (4), and the hydraulic transmission component pushes the movable plate (6) to drive the male mold plate (10) and the female mold plate (4) to close the mold; S4, the plastic extruder injects the hot melt plastic material through the injection ports of the master mold fixing plate (1) and the master mold plate (4); S5, cooling water is transported to the mother mold plate (4) for circulation to achieve cooling and molding of the mold; S6. After the molding is completed, the hydraulic transmission assembly of the machine tool is controlled by the control panel to drive the moving plate (6) to continue to move to the right, and the pneumatic spring (1614) drives the swing frame (165), the slide rail (166) and the upper parts to rotate and reset close to the mother template (4); S7. When the guide wheel (153) of the slide bar (152) slides to the trapezoidal groove of the guide frame (156), the second elastic member (155) is reset, driving the slide bar (152) and the limit top block (154) to move upward, so that the external air pipe can be injected with gas. The gas is injected into the air box (141) through the interface (146) and the pipeline (144), and then enters the molding column (12) through the air port (142), thereby increasing the air pressure, and the moving column (132) moves to the left. The first elastic member (136) is compressed, and the clamping column (135) is clamped into the slide groove (134) of the annular cylinder body (131). The conical block (133) pushes out the molded plastic product as the moving column (132) moves, and the gas is also blown out through the annular cylinder body (131), so that the molded plastic product is separated from the male template (10); S8. Take out the molded plastic product.

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