Plastic parts production equipment with automatic demoulding mold and plastic parts production method

Abstract

The present invention discloses a plastic parts production equipment with an automatic demoulding mold, which relates to the technical field of plastic product production equipment, and comprises an equipment frame, wherein the equipment frame is equipped with a rolling device for arranging a plurality of plastic molds, one side of the equipment frame is an injection molding device, and the other side is a heating device, the rolling device is located between the injection molding device and the heating device, and its two ends are respectively embedded in the joints of the injection molding device and the heating device; through the integrated rolling mold design and the automated process, the heating device, the rolling device and the injection molding device are combined into one, the entire injection molding production process is realized, the production continuity is improved, the production efficiency is significantly improved, the equipment downtime is reduced, and the problem that the traditional injection molding process takes a long time in the links of mold opening and closing, demoulding and cooling and curing is solved. Different from the prior art, the present invention can realize multiple processes at the same time, resulting in improved overall production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic product production equipment, in particular to a plastic part production equipment with an automatic demoulding mold. Background Art

[0002] Injection molding machine is a key equipment used in the plastic processing industry to manufacture plastic products. Its main function is to inject molten plastic into the mold and form the product of the desired shape through cooling and solidification. After years of development, injection molding machine technology has formed a variety of types and structures to meet different production needs.

[0003] Injection molding machines can be classified according to the plasticizing method, transmission method and operation method. According to the plasticizing method, injection molding machines can be divided into plunger type and screw type. Plunger type injection molding machines are not suitable for processing plastic parts with poor fluidity and strong heat sensitivity, while the screw of screw type injection molding machines can rotate or reciprocate, which is suitable for processing a variety of plastics. According to the transmission method, injection molding machines can be divided into mechanical type, hydraulic type and mechanical and hydraulic combined type.

[0004] The traditional injection molding process takes a long time in the stages of mold opening and closing, demolding, cooling and curing. This is because the injection molding equipment can only produce in a certain order and cannot realize multiple processes at the same time, resulting in low overall production efficiency. In addition, manual operation accounts for a large proportion in the injection molding process, resulting in high labor costs and certain safety risks. How to better improve the automated production efficiency of plastic parts is a question worth considering. Summary of the invention

[0005] In order to solve the above-mentioned technical problems, the present invention provides a plastic parts production equipment with an automatic demoulding mold.

[0006] The technical solution of the present invention is achieved in this way:

[0007] A plastic parts production equipment with an automatic demoulding mold, comprising an equipment frame, wherein the equipment frame is internally provided with a rolling device for setting a plurality of plastic molds, an injection molding device is provided on one side of the equipment frame, and a heating device is provided on the other side, the rolling device is located between the injection molding device and the heating device, and the two ends of the rolling device are respectively embedded in the joint between the injection molding device and the heating device;

[0008] The rolling device includes a driving device, a rotating cylinder and an end fixing piece. The driving device is connected to one end of the rotating cylinder and is used to drive the rotating cylinder to rotate. The other end of the rotating cylinder is rotatably mounted on the end fixing piece. The rotating cylinder is in the shape of a polygonal column. Positioning plates are fixedly mounted at both ends of the rotating cylinder, and a plurality of mold grooves are opened on the outer wall of the rotating cylinder. A movable plate for cooling the high-temperature injection molding material injected into the mold groove is protruded and movably arranged in the mold groove. The driving device and the end fixing piece are correspondingly arranged at both ends of the rotating cylinder.

[0009] Furthermore, the driving device includes a driving motor for driving the rotating drum to rotate and a shell for installing the driving motor, the shell is provided with a connecting line for connecting to an external power supply, and the driving end of the driving motor is fixedly connected to a positioning plate fixedly arranged at one end of the rotating drum.

[0010] Furthermore, the bottom wall of the mold groove is provided with an opening for accommodating a movable plate, the movable plate is slidably installed in the opening, and the outer wall of the movable plate is gap-matched with the inner wall of the opening, and the movable plate is a movable component telescopically arranged in the mold groove.

[0011] Furthermore, a space is reserved inside the rotating cylinder for installing a telescopic cylinder for driving the movable plate to move. One end of the telescopic cylinder is fixed at the center of the rotating cylinder, and the transmission end of the telescopic cylinder is fixedly connected to the outer wall of the movable plate close to the opening through a connecting rod.

[0012] Further, the injection molding equipment comprises a first external shell, an injection molding pipeline and a pressing plate movably mounted on the first external shell;

[0013] The first outer shell is provided with a first slot for accommodating a press plate on an outer wall of one side close to the rotating cylinder, a plurality of injection molding pipes and an elastic structure are arranged in the first slot, a plurality of mutually connected feed ports and discharge ports are arranged on the press plate, the feed port surrounds one end of the injection molding pipe and is connected to the injection molding pipe, the discharge port is trumpet-shaped, and an end with a smaller diameter thereof is connected to the feed port, the injection molding pipe is connected to an external injection molding material conveying device, one end of the elastic structure is fixedly arranged on the bottom wall of the first slot, and the other end thereof is fixedly connected to the press plate;

[0014] The elastic structure is a strong spring surrounded by the outside of the injection molding pipe, and one end of the injection molding pipe passes through the strong spring and is slidably installed in the feed port.

[0015] Furthermore, the heating device comprises a second outer shell, an electric heating device built into the second outer shell, and a heating nozzle arrayed on a portion of the second outer shell facing the rotating drum, wherein the heating nozzle is built into a guide fan for blowing high-temperature air generated by the electric heating device out from an outlet of the heating nozzle;

[0016] The heating device also includes a heat dissipation fan installed in the second outer shell for dissipating heat inside the second outer shell.

[0017] Furthermore, a master control device for controlling the operation of each device is installed on the outer wall of one side of the first external shell, and a magnetic induction coil is also provided on the side of the pressing plate facing the rotating cylinder. The magnetic induction coil is connected to the master control device by signal, and the master control device is connected to the external injection molding material conveying equipment by signal.

[0018] Furthermore, a product collection bin for receiving finished plastic parts falling off from the mold groove is slidably mounted on the bottom of the injection molding equipment, and an opening of the product collection bin is arranged at the upper part thereof.

[0019] Furthermore, the edges of the rotating cylinder are all rounded, and an induction ring corresponding to the position of the magnetic induction coil is embedded in the outer wall surface of the rotating cylinder provided with the mold groove, and the induction ring and the magnetic induction coil form a magnetic induction switch for starting an external injection molding material conveying device;

[0020] A plurality of cooling devices for cooling the mold grooves are also arranged in the rotating cylinder.

[0021] A method for producing a plastic part comprises the following steps:

[0022] S1. Start the heating equipment and blow high-temperature air onto the rotating cylinder through the guide fan to preheat the mold tank;

[0023] S2, start the driving motor to drive the rotating cylinder to rotate, so that the empty mold slot moves to the injection molding equipment position and the mold slot and the pressing plate fit tightly, even if the induction ring is in full contact with the magnetic induction coil;

[0024] S3, start the external injection molding material conveying equipment, extrude the high-temperature injection molding material to the injection molding equipment, and inject the high-temperature injection molding material into the mold groove on the rotating cylinder through the injection molding pipe and the pressing plate;

[0025] S4, after the injection molding is completed, the injection of the high-temperature injection molding material is suspended, and the cooling device quickly cools the high-temperature injection molding material filled in the mold groove;

[0026] S5. The injection molding material in the mold groove is completely solidified into a plastic part, and the driving motor drives the rotating cylinder to rotate, so that the next set of mold grooves fits tightly with the pressing plate;

[0027] S6. When the next set of mold grooves is fitted with the pressing plate, the telescopic cylinder built in the rotating cylinder is started, and the movable plate is pulled into the rotating cylinder by the telescopic cylinder to demould the completely solidified plastic parts in S5, so that the plastic parts fall into the product collection bin;

[0028] Steps S1 to S6 are repeatedly performed to achieve continuous production of plastic parts.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The present invention integrates heating equipment, rolling device and injection molding equipment into one through integrated rolling mold design and automated process, realizes the entire injection molding production process, reduces manual intervention, improves production continuity, and significantly improves production efficiency. The mold is set to be rolling, which improves the efficiency of automatic demoulding and mold replacement, reduces equipment downtime, and further reduces production costs. It solves the problem that the traditional injection molding process takes a long time in the mold opening and closing, demoulding and cooling and curing. Because this type of injection molding equipment can only be produced in a certain order, the present invention is different from the prior art and can realize multiple processes at the same time, resulting in improved overall production efficiency;

[0031] 2. The present invention utilizes a heating device and an injection molding device, and the two cooperate with a rolling device. The heating device realizes uninterrupted preheating, the injection molding device realizes smooth injection molding, and the rolling device realizes seamless mold replacement, so that various processes of plastic parts production can be carried out simultaneously, which can improve production efficiency as a whole. At the same time, the present invention can realize fully automatic production without manual demoulding or collection of products, avoiding safety risks due to manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of a plastic parts production device with an automatic demoulding mold according to Example 1;

[0033] Figure 2 This is a schematic diagram of the structural decomposition of a plastic parts production device with an automatic demoulding mold according to Example 1;

[0034] Figure 3 A side sectional view of a plastic parts production device with an automatic demoulding mold according to Example 1;

[0035] Figure 4 for Figure 3 A partial enlarged view of the middle A part;

[0036] Figure 5 It is a schematic diagram of the structure of the rotating drum in Example 1;

[0037] Figure 6 This is a flow chart of a plastic part production method according to Example 2.

[0038] 1. Equipment frame;

[0039] 2. rolling device; 21. driving device; 211. driving motor; 212. housing; 213. connecting wire; 22. rotating cylinder; 23. end fixing piece; 24. positioning plate; 25. mold groove; 251. opening; 252. induction ring; 26. movable plate; 27. telescopic cylinder; 28. connecting rod;

[0040] 3. Injection molding equipment; 31. First external shell; 32. Injection molding pipeline; 33. Pressing plate; 331. Inlet; 332. Outlet; 333. Magnetic induction coil; 34. First slot; 35. Elastic structure;

[0041] 4. Heating device; 41. Second external shell; 42. Electric heating device; 43. Heating nozzle; 44. Guide fan; 45. Cooling fan;

[0042] 5. General control device; 6. Product collection bin. DETAILED DESCRIPTION

[0043] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Example 1

[0045] like Figure 1-Figure 5 As shown, a plastic parts production equipment with automatic demoulding molds includes an equipment frame 1, wherein the equipment frame 1 has a rolling device 2 with a plurality of plastic molds arranged therein, an injection molding device 3 is provided on one side of the equipment frame 1, and a heating device 4 is provided on the other side, wherein the rolling device 2 is located between the injection molding device 3 and the heating device 4, and the two ends of the rolling device 2 are respectively embedded in the joints of the injection molding device 3 and the heating device 4;

[0046] The rolling device 2 includes a driving device 21, a rotating cylinder 22 and an end fixing piece 23. The driving device 21 is connected to one end of the rotating cylinder 22 for driving the rotating cylinder 22 to rotate. The other end of the rotating cylinder 22 is rotatably mounted on the end fixing piece 23. The rotating cylinder 22 is in the shape of a polygonal column. Positioning plates 24 are fixedly mounted at both ends of the rotating cylinder 22, and a plurality of mold grooves 25 are opened on the outer wall of the rotating cylinder 22. A movable plate 26 for cooling the high-temperature injection molding material injected into the mold groove 25 is protruded and movably arranged in the mold groove 25. The driving device 21 and the end fixing piece 23 are correspondingly arranged at both ends of the rotating cylinder 22.

[0047] In this embodiment, the injection molding device 3, the heating device 4 and the rolling device 2 for shaping the plastic are combined, and the injection molding device 3 is used to connect to the external injection molding material conveying device. When the mold groove 25 set on the rolling cylinder of the rolling device 2 is parallel to and fits with the injection molding device 3, the high-temperature plastic is injected into the mold groove 25. After the injection is completed, the high-temperature plastic filled in the mold groove 25 is cooled by the movable plate 26 so that it is shaped in the mold groove 25. After the shaping of a group of products is completed, the rotating cylinder 22 of the rolling device 2 is started, and the mold groove 25 on the other side is turned to a position parallel to the injection molding device 3 and fits, thereby realizing a smooth injection molding and product production process;

[0048] Furthermore, the driving device 21 includes a driving motor 211 for driving the rotating drum 22 to rotate and a housing 212 for installing the driving motor 211. The housing 212 is provided with a connecting line 213 for connecting to an external power supply. The connecting line 213 is used to power the electrical equipment in the rotating drum 22. The transmission end of the driving motor 211 is fixedly connected to a positioning plate 24 fixedly arranged at one end of the rotating drum 22.

[0049] Furthermore, an opening 251 for accommodating a movable plate 26 is formed in the inner bottom wall of the mold groove 25. The movable plate 26 is slidably installed in the opening 251, and the outer wall of the movable plate 26 is gap-matched with the inner wall of the opening 251. The movable plate 26 is a movable component telescopically arranged in the mold groove 25. A cooling device for cooling the temperature is arranged inside the movable plate 26. The cooling device includes a cooling pipe and can be connected to an external cooling compressor or a liquid cooling circulation device for circulating cooling of the movable plate 26.

[0050] Furthermore, space is reserved inside the rotating cylinder 22 for installing a telescopic cylinder 27 for driving the movable plate 26 to move. The space provides room for the telescopic cylinder 27 to move. One end of the telescopic cylinder 27 is fixed at the center of the rotating cylinder 22. The transmission end of the telescopic cylinder 27 is fixedly connected to the outer wall of the movable plate 26 on one side close to the opening 251 through a connecting rod 28. The end of the connecting rod 28 is bent and can connect several movable plates 26, so that the movable plates 26 can move synchronously under the action of the telescopic cylinder 27.

[0051] After the plastic is formed, the plastic part in the mold groove 25 is in a formed state, and the telescopic cylinder 27 is used to drive the movable plate 26 to repeatedly telescope and move in the opening 251, so that the plastic part formed in the mold groove 25 quickly falls off the mold groove 25, achieving the purpose of automatic demolding.

[0052] Furthermore, the injection molding device 3 includes a first outer shell 31, an injection molding pipeline 32, and a pressing plate 33 movably mounted on the first outer shell 31;

[0053] The first outer shell 31 is provided with a first slot 34 for accommodating a die plate 33 on its outer wall near the rotating cylinder 22. A plurality of injection molding pipes 32 and an elastic structure 35 are arranged in the first slot 34. The die plate 33 is provided with a plurality of inlets 331 and outlets 332 that are interconnected. The inlet 331 surrounds one end of the injection molding pipe 32 and is connected to the injection molding pipe 32. The outlet 332 is trumpet-shaped, and its end with a smaller diameter is connected to the inlet 331. The injection molding pipe 32 is connected to an external injection molding material conveying device. One end of the elastic structure 35 is fixedly arranged on the inner bottom wall of the first slot 34, and the other end thereof is fixedly connected to the die plate 33.

[0054] The elastic structure 35 is a strong spring surrounding the outside of the injection pipe 32 , and one end of the injection pipe 32 passes through the strong spring and is slidably installed in the feed port 331 .

[0055] The injection molding device 3 in this embodiment is connected to an external injection molding material conveying device, so as to convey the high-temperature injection molding material to the pressing plate 33, and convey the high-temperature injection molding material to a plurality of mold grooves 25 on the rotating cylinder 22 for cooling and shaping;

[0056] Specifically, the inlet 331 of the pressing plate 33 is connected to the injection molding pipe 32 for introducing the external high-temperature injection molding material. At the same time, the pressing plate 33 is a plate-shaped component elastically mounted in the first slot 34 on the first external shell 31, and a strong spring is used to continuously provide thrust so that its outer wall surface is closely attached to the outer wall surface of the rotating cylinder 22 to prevent leakage of the material during the conveying process;

[0057] Furthermore, the heating device 4 includes a second outer shell 41, an electric heating device 42 built into the second outer shell 41, and a heating nozzle 43 arrayed on a portion of the second outer shell 41 facing the rotating drum 22, and the heating nozzle 43 is built with a guide fan 44 for blowing the high-temperature air generated by the electric heating device 42 out of the outlet of the heating nozzle 43;

[0058] The function of the heating device 4 is to preheat the mold groove 25 before injection molding, so as to ensure that the high-temperature injection molding material will not be cooled prematurely due to the temperature drop during the process of filling the mold groove 25, resulting in the high-temperature injection molding material being unable to fill the mold groove 25, thereby causing serious quality problems of the product;

[0059] Specifically, when the outer wall of the rotating cylinder 22 rotates to face the heating nozzle 43, it will be impacted by the high-temperature airflow, thereby achieving a rapid temperature increase, and the mold groove 25 can be preheated. During the preheating process, the preheating temperature can be controlled by adjusting the working time of the electric heating device 42, or adjusting the time that the outer wall of the rotating cylinder 22 stays in the direction of the heating nozzle 43.

[0060] The heating device 4 further includes a cooling fan 45 installed in the second outer shell 41 for dissipating heat inside the second outer shell 41 to prevent the heating device 4 from being overheated as a whole and affecting its operation.

[0061] Furthermore, a master control device 5 for controlling the operation of each device is installed on the outer wall of one side of the first external shell 31, and a magnetic induction coil 333 is also provided on the side of the pressing plate 33 facing the rotating cylinder 22. The magnetic induction coil 333 is connected to the master control device 5 by signal, and the master control device 5 is connected to the external injection molding material conveying equipment by signal.

[0062] In this embodiment, the master control device 5 can independently control the start and stop of the devices including the heating device 4, the rotating device and the injection molding device 3. The master control device 5 has a built-in control circuit board and a control CPU.

[0063] Furthermore, a product collecting bin 6 for receiving finished plastic parts that fall out of the mold groove 25 is slidably installed at the bottom of the injection molding equipment 3. The opening 251 of the product collecting bin 6 is arranged at its upper part. The product collecting bin 6 is a detachable bin body for receiving finished plastic parts. When the finished products are fully collected, the product collecting bin 6 can be pulled out from the side of the injection molding equipment 3 and other product collecting bins 6 can be installed. For the plastic parts that have been cooled and shaped in the mold groove 25, when the rotating cylinder 22 turns the next surface to be injected to the die plate 33 and fits it to the outer wall of the die plate, the side that has completed injection molding faces the product collecting bin 6, and the telescopic cylinder 27 at the corresponding position is started, repeatedly driving the movable plate 26 to complete demolding, and the demolded product falls into the product collecting bin 6.

[0064] Furthermore, the edges of the rotating cylinder 22 are all rounded, and the outer wall surface of the rotating cylinder 22 provided with the mold groove 25 is embedded with an induction ring 252 corresponding to the position of the magnetic induction ring 333, and the induction ring 252 and the magnetic induction ring 333 form a magnetic induction switch for starting an external injection molding material conveying device;

[0065] The rotating cylinder 22 is further provided with a plurality of cooling devices for cooling the mold grooves 25 .

[0066] When the induction ring 252 is in close contact with the magnetic induction ring 333, the pressing plate 33 is in close contact with the outer wall of the rotating cylinder 22, and the external injection molding material conveying equipment can be started to convey the material and start the injection molding work;

[0067] The cooling device may be a refrigeration compressor and cooling pipe arranged inside or outside the rotating cylinder 22, or may be a variety of refrigeration tools such as a smaller condensing plate.

[0068] The plastic parts production equipment of this embodiment realizes an efficient automated production process through its innovative rolling mold design: a plurality of plastic mold grooves 25 are provided on the rolling device 2 built into the equipment frame 1. When the rotating cylinder 22 rotates to a position parallel to the injection molding device 3, the high-temperature plastic material is injected into the mold groove 25, and then the high-temperature plastic is cooled and shaped by the cooling device. Once the plastic parts are cooled and formed, the telescopic cylinder 27 drives the movable plate 26 to telescope so that the plastic parts automatically fall off and the demolding is completed. The rotating cylinder 22 continues to rotate and turns the next mold groove 25 to the injection molding position to realize continuous production. At the same time, the injection molding device 3 and the heating device 4 are respectively responsible for the injection of materials and the preheating of the mold to ensure the quality of the plastic parts. The entire production process is intelligently controlled by the master control device 5, ensuring high production efficiency, precise temperature control, and convenience and safety of operation.

[0069] Example 2

[0070] like Figure 6 As shown, a plastic parts production method is applied to the above-mentioned plastic parts production equipment with automatic demoulding mold, comprising the following steps:

[0071] S1. Start the heating equipment and blow high-temperature air onto the rotating cylinder through the guide fan to preheat the mold groove. The preheating step ensures that the mold reaches the ideal temperature before injection molding, which helps to improve the molding quality of plastic parts and reduce molding defects.

[0072] S2, start the driving motor to drive the rotating cylinder to rotate, so that the empty mold slot moves to the injection molding equipment position and the mold slot and the pressing plate fit tightly, even if the induction ring is in full contact with the magnetic induction coil;

[0073] S3, start the external injection molding material conveying equipment, extrude the high-temperature injection molding material to the injection molding equipment, and inject the high-temperature injection molding material into the mold groove on the rotating cylinder through the injection molding pipe and the pressing plate;

[0074] S4, after the injection molding is completed, the injection of the high-temperature injection molding material is suspended, and the cooling device quickly cools the high-temperature injection molding material filled in the mold groove; the rapid cooling step helps to reduce the molding defects of the plastic parts;

[0075] S5. The injection molding material in the mold groove is completely solidified into a plastic part, and the driving motor drives the rotating cylinder to rotate, so that the next set of mold grooves fits tightly with the pressing plate;

[0076] S6. When the next set of mold grooves is fitted with the pressing plate, the telescopic cylinder built in the rotating cylinder is started, and the movable plate is pulled into the rotating cylinder by the telescopic cylinder to demould the completely solidified plastic parts in S5, so that the plastic parts fall into the product collection bin;

[0077] Steps S1 to S6 are repeatedly performed to achieve continuous production of plastic parts.

[0078] This embodiment realizes high-efficiency continuous production, improves product quality and stability, reduces energy consumption and material waste, reduces labor costs and labor intensity, enhances production flexibility and adaptability, and at the same time improves equipment utilization and workplace safety, which is in line with the modern industrial development trend of energy conservation, environmental protection and green manufacturing.

Claims

1. A plastic parts production equipment with an automatic demoulding mold, characterized in that: The device comprises an equipment frame (1), wherein the equipment frame (1) has a rolling device (2) disposed therein with a plurality of plastic molds, an injection molding device (3) being disposed on one side of the equipment frame (1), and a heating device (4) being disposed on the other side, the rolling device (2) being located between the injection molding device (3) and the heating device (4), and having two ends thereof respectively embedded in the joint between the injection molding device (3) and the heating device (4); The rolling device (2) comprises a driving device (21), a rotating cylinder (22) and an end fixing member (23); the driving device (21) is connected to one end of the rotating cylinder (22) and is used to drive the rotating cylinder (22) to rotate; the other end of the rotating cylinder (22) is rotatably mounted on the end fixing member (23); the rotating cylinder (22) is in the shape of a polygonal column; positioning plates (24) are fixedly mounted on both ends of the rotating cylinder (22); a plurality of mold grooves (25) are provided on the outer wall of the rotating cylinder (22); a movable plate (26) is protruded and movably arranged in the mold groove (25) and is used to cool down the high-temperature injection molding material injected into the mold groove (25); the driving device (21) and the end fixing member (23) are correspondingly arranged at both ends of the rotating cylinder (22); The injection molding device (3) comprises a first outer shell (31), an injection molding pipeline (32), and a pressing plate (33) movably mounted on the first outer shell (31); A first slot (34) for accommodating a die plate (33) is formed on an outer wall of one side of the first outer shell (31) close to the rotating cylinder (22); a plurality of injection molding pipes (32) and an elastic structure (35) are arranged in the first slot (34); a plurality of mutually connected inlets (331) and outlets (332) are formed on the die plate (33); the inlet (331) surrounds one end of the injection molding pipe (32) and is connected to the injection molding pipe (32); the outlet (332) is trumpet-shaped, and its end with a smaller diameter is connected to the inlet (331); the injection molding pipe (32) is connected to an external injection molding material conveying device; one end of the elastic structure (35) is fixedly arranged on the inner bottom wall of the first slot (34), and the other end is fixedly connected to the die plate (33); The elastic structure (35) is a strong spring that surrounds the outside of the injection pipe (32); one end of the injection pipe (32) passes through the strong spring and is slidably installed in the feed port (331).

2. The plastic parts production equipment with automatic demoulding mold according to claim 1, characterized in that: The driving device (21) comprises a driving motor (211) for driving the rotating drum (22) to rotate and a housing (212) for mounting the driving motor (211); a connecting line (213) for connecting to an external power source is provided on the housing (212); a driving end of the driving motor (211) is fixedly connected to a positioning plate (24) fixedly provided at one end of the rotating drum (22).

3. The plastic parts production equipment with automatic demoulding mold according to claim 1, characterized in that: The inner bottom wall of the mold groove (25) is provided with an opening (251) for accommodating a movable plate (26); the movable plate (26) is slidably mounted in the opening (251); an outer wall of the movable plate (26) and an inner wall of the opening (251) are clearance-matched; and the movable plate (26) is a movable component telescopically arranged in the mold groove (25).

4. The plastic parts production equipment with automatic demoulding mold according to claim 1, characterized in that: A space is reserved inside the rotating cylinder (22) for installing a telescopic cylinder (27) for driving the movable plate (26) to move. One end of the telescopic cylinder (27) is fixed at the center of the rotating cylinder (22). The transmission end of the telescopic cylinder (27) is fixedly connected to the outer wall of the movable plate (26) near the opening (251) via a connecting rod (28).

5. The plastic parts production equipment with automatic demoulding mold according to claim 1, characterized in that: The heating device (4) comprises a second outer shell (41), an electric heating device (42) built into the second outer shell (41), and heating nozzles (43) arranged in an array on a portion of the second outer shell (41) facing the rotating drum (22), wherein the heating nozzles (43) are built with a guide fan (44) for blowing high-temperature air generated by the electric heating device (42) out of an outlet of the heating nozzles (43); The heating device (4) further comprises a cooling fan (45) installed in the second outer shell (41) and used for dissipating heat inside the second outer shell (41).

6. The plastic parts production equipment with automatic demoulding mold according to claim 1, characterized in that: A master control device (5) for controlling the operation of each device is mounted on an outer wall of one side of the first outer shell (31); a magnetic induction coil (333) is also disposed on a surface of the pressing plate (33) facing the rotating cylinder (22); the magnetic induction coil (333) is signal-connected to the master control device (5); and the master control device (5) is signal-connected to an external injection molding material conveying device.

7. The plastic parts production equipment with automatic demoulding mold according to claim 1, characterized in that: A product collection bin (6) for receiving finished plastic parts that fall out of the mold groove (25) is also slidably mounted on the bottom of the injection molding device (3), and the opening (251) of the product collection bin (6) is arranged at its upper portion.

8. The plastic parts production equipment with automatic demoulding mold according to claim 1, characterized in that: The edges of the rotating cylinder (22) are all rounded, and an induction ring (252) corresponding to the position of the magnetic induction ring (333) is embedded in the outer wall surface of the rotating cylinder (22) provided with the mold groove (25), and the induction ring (252) and the magnetic induction ring (333) form a magnetic induction switch for starting an external injection molding material conveying device; A plurality of cooling devices for cooling the mold grooves (25) are also arranged in the rotating cylinder (22).

9. A method for producing plastic parts, applied to a plastic parts production device with an automatic demoulding mold as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Start the heating equipment and blow high-temperature air onto the rotating cylinder through the guide fan to preheat the mold tank; S2, start the driving motor to drive the rotating cylinder to rotate, so that the empty mold slot moves to the injection molding equipment position and the mold slot and the pressing plate fit tightly, even if the induction ring is in full contact with the magnetic induction coil; S3, start the external injection molding material conveying equipment, extrude the high-temperature injection molding material to the injection molding equipment, and inject the high-temperature injection molding material into the mold groove on the rotating cylinder through the injection molding pipe and the pressing plate; S4, after the injection molding is completed, the injection of the high-temperature injection molding material is suspended, and the cooling device quickly cools the high-temperature injection molding material filled in the mold groove; S5. The injection molding material in the mold groove is completely solidified into a plastic part, and the driving motor drives the rotating cylinder to rotate, so that the next set of mold grooves fits tightly with the pressing plate; S6. When the next set of mold grooves is fitted with the pressing plate, the telescopic cylinder built in the rotating cylinder is started, and the movable plate is pulled into the rotating cylinder by the telescopic cylinder to demould the completely solidified plastic parts in S5, so that the plastic parts fall into the product collection bin; Steps S1 to S6 are repeatedly performed to achieve continuous production of plastic parts.

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