Compression molding equipment, foaming part production system and compression molding method

Abstract

The present invention provides a compression molding equipment, a foamed part production system and a compression molding method, which relate to the technical field of foamed part production, including a frame, a movable seat, a lifting cylinder, a flipping cylinder and a die pressing cylinder. The frame is provided with a base; the base is used to fix and connect the lower die of the molding die; the movable seat is arranged above the base, and is used to fix and connect the upper die of the molding die; the lifting cylinder is arranged on the first side of the movable seat, and its cylinder body is vertically fixed on the frame, and its piston rod is hinged upward to the A position on the movable seat; the flipping cylinder is arranged on the upper side close to the first side of the movable seat and inclined to the first side of the movable seat, and its first end is hinged to the frame, and its second end is hinged to the movable seat; the die pressing cylinder is arranged directly above the movable seat, and its first end is hinged to the frame, and its second end is hinged to the movable seat. The compression molding equipment provided by the present application can simultaneously ensure the convenience of operation and molding accuracy when molding large products, and can avoid interference.

Description

Technical Field

[0001] The present application relates to the technical field of foamed part production, and in particular to a compression molding device, a foamed part production system and a compression molding method. Background Art

[0002] Foam products are widely present in real life. Foam products are made by foaming process. Foaming is a common manufacturing process that can be used to make foam plastic products. It can be applied to the packaging industry, construction field, automobile industry, electronic appliances, etc. Specifically, foam products can be used in automobiles or other means of transportation as interior decoration or other functional structures. The compression foaming process is a common polymer foaming process. It is widely used in the fields of thermal insulation materials, structural materials and sound insulation materials in production. The principle of this process is to use high temperature and high pressure conditions to pour the pre-prepared foaming polymer into the cavity of the mold, and form the molding material through expansion and solidification. When the compression foaming process is used to produce foam parts, compression molding is required. When the molding machine is working, the powdered, granular or fibrous plastic is first placed in the mold cavity at the molding temperature, and then the mold is closed and pressurized to form and solidify it.

[0003] At present, there are two types of molding machines. One is a column-type molding machine, which realizes mold opening and mold closing by driving the upper mold to move vertically. When this type of molding machine is used to mold large products, the vertical guide column will affect the operation, resulting in poor workability. The other is an open-type molding machine, which realizes mold opening and mold closing by driving the upper mold to flip. This type of molding machine is prone to interference during the operation process and has low molding accuracy. Therefore, the current molding machine cannot guarantee both operational convenience and molding accuracy when molding large products. Summary of the invention

[0004] The technical problem to be solved by the present application is to propose a compression molding equipment, a foam part production system and a compression molding method in view of the above-mentioned deficiencies in the prior art.

[0005] A compression molding device, the compression molding device comprising:

[0006] The frame is provided with a base; the base is used to fix the lower mold connected to the forming mold;

[0007] A movable seat is arranged above the base and is used for fixedly connecting the upper mold of the forming mold; the movable seat has a first side and a second side opposite to each other in the transverse direction;

[0008] A lifting cylinder is arranged on the first side of the moving seat, the cylinder body of which is vertically fixedly mounted on the frame, and the piston rod of which is upwardly hinged to the A position on the moving seat;

[0009] A turning cylinder is arranged above the first side of the moving seat and inclined toward the first side of the moving seat, with a first end hinged to the frame and a second end hinged to the moving seat;

[0010] A die pressing cylinder is arranged directly above the moving seat, a first end of which is hinged to the frame, and a second end of which is hinged to the moving seat;

[0011] When the mold is opened, the piston rod of the lifting cylinder pushes against the moving seat and extends upward, so that the A part rises to a predetermined height and maintains the height position after rising; after the A part rises to a predetermined height, the flipping cylinder drives the moving seat to flip around the A part to its first side to complete the mold opening;

[0012] During mold closing, the flipping cylinder drives the movable seat to flip around the A position toward its second side until it is in a horizontal state; when the movable seat flips to a horizontal state, the die pressing cylinder presses the movable seat downward vertically, and the lifting cylinder contracts synchronously to keep the movable seat in a horizontal state and move downward.

[0013] Optionally, two die pressing cylinders are arranged at intervals on the movable seat in the longitudinal length; the lifting cylinder and the flipping cylinder are both arranged between the two die pressing cylinders.

[0014] Optionally, the moving seat comprises: a moving seat body, and a protruding structure portion located at a first side of the moving seat body; and the portion A is located at an end of the protruding structure portion.

[0015] Optionally, the flip angle of the movable seat during mold opening is 25°-120°.

[0016] Optionally, when the mold is opened, when the piston rod of the lifting cylinder pushes against the movable seat and extends upward, the die pressing cylinder contracts synchronously to keep the movable seat in a horizontal state.

[0017] Optionally, the frame is provided with a limiting structure for guiding the piston rod of the lifting cylinder to move up and down in a vertical direction.

[0018] Optionally, a guide structure is provided between the upper die and the lower die of the molding die, and the guide structure is used to guide and limit the upper die to be separated in a horizontal state relative to the lower die.

[0019] Optionally, the base, the movable seat, the lifting cylinder, the flip cylinder, and the die pressing cylinder are symmetrically arranged on both sides of the frame; and when driven, the lifting cylinders, flip cylinders, and die pressing cylinders on both sides move synchronously.

[0020] On the other hand, the present application also provides a foamed part production system, which has the above-mentioned compression molding equipment.

[0021] On the other hand, the present application also provides a compression molding method, which is applied to the above-mentioned compression molding equipment; the compression molding method comprises the steps of:

[0022] Step S101, mold opening step: the piston rod of the lifting cylinder pushes the movable seat upward to make the A part rise to a predetermined height and maintain the height position after rising; after the A part rises to a predetermined height, the turning cylinder drives the movable seat to turn around the A part to its first side to complete the mold opening;

[0023] Step S102, mold closing step: the flip cylinder drives the movable seat to flip around the A position to its second side until it is in a horizontal state; when the movable seat is flipped to a horizontal state, the die pressing cylinder presses the movable seat vertically downward, and the lifting cylinder contracts synchronously to keep the movable seat in a horizontal state and move downward.

[0024] When the compression molding equipment provided by the present application is opening the mold, the piston rod of the lifting cylinder pushes against the moving seat and extends upward, so that the part A on the moving seat rises to a predetermined height and maintains the height position after rising; after the part A rises to a predetermined height, the flipping cylinder drives the moving seat to flip around the part A to its first side to complete the mold opening. When closing the mold, the flipping cylinder drives the moving seat to flip around the part A to its second side until it is horizontal; when the moving seat flips to the horizontal state, the die pressing cylinder presses down the moving seat vertically, and the lifting cylinder contracts synchronously to keep the moving seat in a horizontal state and move down. The compression molding equipment provided by the present application will first perform vertical separation when opening the mold, which is not easy to cause interference; and, by flipping the flipping cylinder sideways to open, there is no guide structure in the opening to affect the operation, and the operability is good. In addition, the compression molding equipment provided by the present application will press down vertically when closing the mold to ensure the molding accuracy.

[0025] Therefore, the compression molding equipment provided in the present application can ensure both operational convenience and molding accuracy when molding large products, and can avoid interference.

[0026] In addition, vertical separation will be carried out first when opening the mold, and the separation height can be set according to actual conditions, which is more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the molding equipment in the embodiment of the present application.

[0028] Figure 2 It is another structural schematic diagram of the molding equipment in the embodiment of the present application.

[0029] Figure 3 It is another structural schematic diagram of the molding equipment in the embodiment of the present application.

[0030] Figure 4 It is another structural schematic diagram of the molding equipment in the embodiment of the present application.

[0031] Figure 5 It is a flow chart of the compression molding method in an embodiment of the present application.

[0032] Reference numerals: frame 10 , base 11 , limiting structure 12 , moving seat 20 , moving seat body 21 , extending structure 22 , portion A 221 , lifting cylinder 30 , turning cylinder 40 , die pressing cylinder 50 . DETAILED DESCRIPTION

[0033] The following is the specific embodiment of the present application and in conjunction with the accompanying drawings, the technical scheme of the present application is further described, but the present application is not limited to these embodiments. In the following description, specific details such as specific configuration and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the protection scope of the present application. In addition, for clarity and brevity, the description of known functions and structures has been omitted.

[0034] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other.

[0035] It should be understood that after molding using the model molding equipment, the mold needs to be opened to take out the molded product. For some molded products, the existing molding mold does not have a large enough opening space after opening, which is not convenient for taking out the molded product. To this end, the present application improves the compression molding equipment so that after molding, the compression molding equipment is easier to take out the foamed molded product in the mold.

[0036] refer to Figure 1 and Figure 2The present application provides a compression molding device, which includes: a frame 10, a moving seat 20, a lifting cylinder 30, a flip cylinder 40, and a die pressing cylinder 50; wherein the frame 10 is provided with a base 11; the base 11 is used to fix the lower mold of the molding mold; the moving seat 20 is arranged above the base 11, and is used to fix the upper mold of the molding mold; the moving seat 20 has a first side and a second side opposite to each other in the transverse direction; the lifting cylinder 30 is arranged on the first side of the moving seat 20, and its cylinder body is vertically fixedly installed on the frame 10, and its The piston rod is hinged upward to the A portion 221 on the moving seat 20; the flipping cylinder 40 is arranged at the upper side close to the first side of the moving seat 20 and inclined toward the first side of the moving seat 20, with its first end hinged to the frame 10 and its second end hinged to the moving seat 20; the die pressing cylinder 50 is arranged directly above the moving seat 20, with its first end hinged to the frame 10 and its second end hinged to the moving seat 20; when working, under the drive of the lifting cylinder, the flipping cylinder and the die pressing cylinder, the moving seat moves and drives the upper mold to move, thereby realizing mold closing or mold opening.

[0037] It should be understood that the molding mold needs to be designed according to the desired product shape and is used to mold various products. The molding mold includes an upper mold 51 and a lower mold 52. In the embodiment of the present application, the upper mold is fixedly connected to the movable seat, and the lower mold is fixedly connected to the base. When closing the mold, the oil cylinder drives the movable seat to move downward, and the movable seat drives the upper mold to move downward to close the mold, so that the foaming material is molded and solidified; when opening the mold, the oil cylinder drives the movable seat to move upward, and the movable seat drives the upper mold to move upward and separate from the lower mold. In addition, the fixed connection between the upper mold and the movable seat is a detachable connection, and the fixed connection between the lower mold and the base is a detachable connection, so that different molding molds can be replaced as needed to be suitable for molding foam products of various shapes.

[0038] The movable seat 20 has a first side and a second side opposite to each other in the transverse direction; Figure 1 and Figure 2 In the structure shown, the first side is the left side, and the second side is the right side. The oil cylinder driving the moving seat 20 includes a lifting oil cylinder 30, a flip oil cylinder 40, and a die pressing oil cylinder 50, wherein the lifting oil cylinder 30 is arranged on the first side of the moving seat 20, and its cylinder body is vertically fixedly installed on the frame 10, and its piston rod is upwardly hinged to the A portion 221 on the moving seat 20; the flip oil cylinder 40 is arranged on the upper side close to the first side of the moving seat 20 and tilted toward the first side of the moving seat 20, and its first end is hinged to the frame 10, and its second end is hinged to the moving seat 20; the die pressing oil cylinder 50 is arranged directly above the moving seat 20, and its first end is hinged to the frame 10, and its second end is hinged to the moving seat 20.

[0039] When opening the mold, the piston rod of the lifting cylinder 30 pushes the moving seat 20 upward, so that the A part 221 rises to a predetermined height and maintains the height position after rising; after the A part 221 rises to a predetermined height, the flipping cylinder 40 drives the moving seat 20 to flip around the A part 221 to its first side to complete the mold opening. The above mold opening process includes two stages. In the initial stage, the lifting cylinder 30 pushes the moving seat 20 to a certain height. In the second stage, the flipping cylinder 40 drives the moving seat to flip around the A part 221 to its first side to complete the mold opening. In the above mold opening process, in the first stage, the moving seat 20 is first pushed up to a certain height, and then the flipping cylinder 40 is used to drive the moving seat 20 to flip. The lifting in the first stage makes the moving seat 20 move upward with the upper mold, so that the upper mold and the lower mold are separated by a certain height distance; on this basis, when the moving seat 20 flips with the upper mold, physical interference is not easy to occur between the upper mold and the lower mold.

[0040] During mold closing, the flip cylinder 40 drives the movable seat 20 to flip around the A part 221 to its second side until it is in a horizontal state; when the movable seat 20 flips to a horizontal state, the die pressing cylinder 50 presses down the movable seat 20 vertically, and the lifting cylinder 30 contracts synchronously to keep the movable seat 20 in a horizontal state and moves down. The above-mentioned mold closing process includes two stages. In the first stage at the beginning, the flip cylinder 40 drives the movable seat 20 to flip around the A part 221 to its second side until it is in a horizontal state; in the second stage, the die pressing cylinder 50 presses down the movable seat 20 vertically, so that the movable seat 20 moves downward as a whole to achieve mold closing. In the second stage, the lifting cylinder 30 contracts synchronously, and the die pressing cylinder 50 and the lifting cylinder 30 act synchronously. Under the joint constraints of the lifting cylinder 30 and the die pressing cylinder 50, the movable seat 20 keeps moving in a horizontal state.

[0041] It can be seen from the mold opening and mold closing processes realized by the above-mentioned compression molding equipment that the above-mentioned mold opening and mold closing actions both include two action processes. The above-mentioned compression molding equipment will first perform vertical separation when opening the mold, which is not easy to cause interference; and, by flipping the oil cylinder sideways to open, there is no guide structure in the opening to affect the operation, and the operability is good. In addition, the compression molding equipment provided in this application will perform vertical downward pressure when closing the mold to ensure the molding accuracy.

[0042] Therefore, the compression molding equipment provided in the present application can ensure both operational convenience and molding accuracy when molding large products, and can avoid interference.

[0043] In one embodiment of the present application, when the mold is opened, when the piston rod of the lifting cylinder 30 pushes against the movable seat 20 and extends upward, the die pressing cylinder 50 contracts synchronously to keep the movable seat 20 in a horizontal state to avoid interference.

[0044] In one embodiment of the present application, a limiting structure 12 is provided on the frame 10 for guiding the piston rod of the lifting cylinder 30 to lift in the vertical direction. Here, the limiting structure 12 is used to ensure the vertical lifting of the moving seat 20. It should be understood that the limiting structure 12 is used to prevent the piston rod of the lifting cylinder 30 from deflecting during operation.

[0045] In one embodiment of the present application, a guide structure is provided between the upper die and the lower die of the molding die, and the guide structure is used to guide and limit the upper die to be separated in a horizontal state relative to the lower die. Here, the guide structure is used to ensure that the upper die is separated in a horizontal state relative to the lower die, and no deflection occurs in the first stage of separation.

[0046] refer to Figure 3 In one embodiment of the present application, two die pressing cylinders 50 are arranged at intervals in the longitudinal length of the movable seat 20; the lifting cylinder 30 and the flip cylinder 40 are both arranged between the two die pressing cylinders 50.

[0047] refer to Figure 3 In one embodiment of the present application, the lifting cylinder 30 and the flipping cylinder 40 are both arranged at the middle position of the moving seat 20 in the longitudinal length, and a die pressing cylinder 50 is arranged on both sides of the middle position. Further, the moving seat 20 includes: a moving seat body 21, and a protruding structure portion 22 located on the first side of the moving seat body 21; the A portion 221 is located at the end of the protruding structure portion 22. On the one hand, the die pressing cylinder 50 is arranged on both sides of the middle position, and when the moving seat is driven downward, the force on the moving seat and the mold is more balanced. On the other hand, the lifting cylinder 30 and the flipping cylinder 40 are both arranged at the middle position of the moving seat 20 in the longitudinal length, so that the moving seat 20 is more balanced during the force application process of the lifting cylinder 30 and the flipping cylinder 40.

[0048] The flip angle of the movable seat 20 when opening the mold can be specifically set according to the actual situation. In one embodiment of the present application, the flip angle of the movable seat 20 when opening the mold is: 25°-120°. In a specific technical solution, the flip angle of the movable seat 20 when opening the mold can be 47°, 48°, 49°, 50°, etc.

[0049] Figure 4 Another structural form of a compression molding device provided in an embodiment of the present application is shown. In the compression molding device, a base 11, a movable base 20, a lifting cylinder 30, a flipping cylinder 40, and a die pressing cylinder 50 are symmetrically arranged on both sides of a frame 10; and when driven, the lifting cylinders 30, the flipping cylinders 40, and the die pressing cylinders 50 on both sides move synchronously.

[0050] refer to Figure 4, the following structures are set on the left and right sides of the frame 10: the base 11 is fixedly connected to the lower mold of the molding mold; the moving seat 20 is arranged above the base 11 and fixedly connected to the upper mold of the molding mold; the moving seat 20 has a first side and a second side opposite to each other in the transverse direction; the lifting cylinder 30 is arranged on the first side of the moving seat 20, and its cylinder body is vertically fixedly installed on the frame 10, and its piston rod is upwardly hinged to the A part 221 on the moving seat 20; the flip cylinder 40 is arranged on the upper side close to the first side of the moving seat 20 and tilted to the first side of the moving seat 20, its first end is hinged to the frame 10, and its second end is hinged to the moving seat 20; the die pressing cylinder 50 is arranged directly above the moving seat 20, its first end is hinged to the frame 10, and its second end is hinged to the moving seat 20. The structures on both sides of the frame 10 are arranged symmetrically, and the structures on both sides can realize the mold opening and mold closing processes involved in the previous part. For specific descriptions, please refer to the description in the previous part.

[0051] In addition, it can be understood from the above structure that the two sets of molds are arranged on both sides of the same frame, and the forces on both sides of the frame can be balanced during operation, thereby optimizing the force on the frame, so that the frame can adopt a lighter structural design. In addition, since the molding molds are arranged on both sides of the frame, the entire molding equipment is an open structure, which makes the operation and maintenance of the equipment more convenient.

[0052] The embodiment of the present application also provides a foam part production system, and the foam part production system has the above-mentioned compression molding equipment. In this embodiment, the foam part production system is used to produce foam parts, and includes various necessary equipment for producing foam parts. In an exemplary technical solution, the foam part production system also includes: a material storage system, a mixing system, an injection system, a punching system, a mold frame system, a hydraulic system, a temperature control system, etc.

[0053] The foamed part production system provided in this embodiment includes the foaming molding equipment provided in the above section. For related descriptions, please refer to the description of the foaming molding equipment in the previous section, which will not be repeated here.

[0054] refer to Figure 5 The embodiment of the present application also provides a compression molding method, which is applied to the compression molding device provided in the previous part; the compression molding method includes step S101 and step S102.

[0055] Step S101, mold opening step: the piston rod of the lifting cylinder pushes the movable seat upward to make part A rise to a predetermined height and maintain the height position after rising; after the flipping cylinder rises to a predetermined height at part A, it drives the movable seat to flip around part A to its first side to complete the mold opening.

[0056] Step S102, mold closing step: the flipping cylinder drives the movable seat to flip around the A position to its second side until it is in a horizontal state; when the movable seat is flipped to a horizontal state, the die pressing cylinder presses the movable seat vertically downward, and the lifting cylinder contracts synchronously to keep the movable seat in a horizontal state and move downward.

[0057] The molding equipment includes a base 11, a movable base 20, a lifting cylinder 30, a turning cylinder 40, and a die pressing cylinder 50. Figure 1-Figure 4 , step S101 and step S102 are explained in detail.

[0058] Also refer to Figure 1-Figure 4 When opening the mold, the piston rod of the lifting cylinder 30 pushes the movable seat 20 upward, so that the A part 221 rises to a predetermined height and maintains the height position after rising; after the A part 221 rises to a predetermined height, the flipping cylinder 40 drives the movable seat 20 to flip around the A part 221 to its first side to complete the mold opening. The above mold opening process includes two stages. In the initial stage, the lifting cylinder 30 pushes the movable seat 20 to a certain height. In the second stage, the flipping cylinder 40 drives the movable seat to flip around the A part 221 to its first side to complete the mold opening. In the above mold opening process, in the first stage, the movable seat 20 is first pushed upward to a certain height, and then the flipping cylinder 40 is used to drive the movable seat 20 to flip. The lifting in the first stage makes the movable seat 20 move upward with the upper mold, so that the upper mold and the lower mold are separated by a certain height distance; on this basis, when the movable seat 20 flips with the upper mold, it is not easy for physical interference to occur between the upper mold and the lower mold.

[0059] Also refer to Figure 1-Figure 4 When closing the mold, the flip cylinder 40 drives the movable seat 20 to flip around the A part 221 to its second side until it is in a horizontal state; when the movable seat 20 flips to a horizontal state, the die pressing cylinder 50 presses down the movable seat 20 vertically, and the lifting cylinder 30 contracts synchronously to keep the movable seat 20 in a horizontal state and moves down until the upper mold and the lower mold of the molding mold are closed. The above-mentioned mold closing process includes two stages. In the first stage at the beginning, the flip cylinder 40 drives the movable seat 20 to flip around the A part 221 to its second side until it is in a horizontal state; in the second stage, the die pressing cylinder 50 presses down the movable seat 20 vertically, so that the movable seat 20 moves downward as a whole to close the mold. In the second stage, the lifting cylinder 30 contracts synchronously, and the die pressing cylinder 50 and the lifting cylinder 30 act synchronously. Under the joint constraints of the lifting cylinder 30 and the die pressing cylinder 50, the movable seat 20 keeps moving down in a horizontal state.

[0060] It can be seen from the mold opening and mold closing processes realized by the above-mentioned compression molding equipment that the above-mentioned mold opening and mold closing actions both include two action processes. The above-mentioned compression molding equipment will first perform vertical separation when opening the mold, which is not easy to cause interference; and, by flipping the oil cylinder sideways to open, there is no guide structure in the opening to affect the operation, and the operability is good. In addition, the compression molding equipment provided in this application will perform vertical downward pressure when closing the mold to ensure the molding accuracy.

[0061] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0062] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, work, devices, components and / or combinations thereof.

[0063] The specific embodiments described herein are merely examples of the technical solutions of the present application. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the scope defined by the claims of the present application.

Claims

1. A compression molding device, characterized in that: The compression molding equipment comprises: The frame is provided with a base; the base is used to fix the lower mold connected to the forming mold; A movable seat is arranged above the base and is used for fixedly connecting the upper mold of the forming mold; the movable seat has a first side and a second side opposite to each other in the transverse direction; A lifting cylinder is arranged on the first side of the moving seat, the cylinder body of which is vertically fixedly mounted on the frame, and the piston rod of which is upwardly hinged to the A position on the moving seat; A turning cylinder is arranged above the first side of the moving seat and inclined toward the first side of the moving seat, with a first end hinged to the frame and a second end hinged to the moving seat; A die pressing cylinder is arranged directly above the moving seat, a first end of which is hinged to the frame, and a second end of which is hinged to the moving seat; When the mold is opened, the piston rod of the lifting cylinder pushes against the moving seat and extends upward, so that the A part rises to a predetermined height and maintains the height position after rising; after the A part rises to a predetermined height, the flipping cylinder drives the moving seat to flip around the A part to its first side to complete the mold opening; During mold closing, the flipping cylinder drives the movable seat to flip around the A position toward its second side until it is in a horizontal state; when the movable seat flips to a horizontal state, the die pressing cylinder presses the movable seat downward vertically, and the lifting cylinder contracts synchronously to keep the movable seat in a horizontal state and move downward.

2. The compression molding device according to claim 1, characterized in that: Two die pressing oil cylinders are arranged at intervals on the movable seat in the longitudinal length; the lifting oil cylinder and the turning oil cylinder are both arranged between the two die pressing oil cylinders.

3. The compression molding device according to claim 2, characterized in that: The moving seat comprises: a moving seat body and a protruding structure portion located at a first side of the moving seat body; the A portion is located at the end of the protruding structure portion.

4. The compression molding device according to claim 1, characterized in that: The turning angle of the movable seat during mold opening is 25°-120°.

5. The compression molding device according to claim 1, characterized in that: When the mold is opened, when the piston rod of the lifting cylinder pushes against the moving seat and extends upward, the die pressing cylinder contracts synchronously to keep the moving seat in a horizontal state.

6. The compression molding device according to claim 1, characterized in that: The frame is provided with a limiting structure for guiding the piston rod of the lifting cylinder to move up and down in the vertical direction.

7. The compression molding device according to claim 1, characterized in that: A guide structure is arranged between the upper die and the lower die of the forming die, and the guide structure is used to guide and limit the upper die to be separated in a horizontal state relative to the lower die.

8. The compression molding device according to any one of claims 1 to 7, characterized in that: The base, the movable seat, the lifting cylinder, the turning cylinder, and the die pressing cylinder are all symmetrically arranged on both sides of the frame; and when driven, the lifting cylinders, the turning cylinders, and the die pressing cylinders on both sides act synchronously.

9. A foamed part production system, characterized in that: The foamed part production system comprises the compression molding equipment as described in any one of claims 1-8.

10. A compression molding method, characterized in that: The compression molding method is applied to the compression molding device according to any one of claims 1 to 8; the compression molding method comprises the steps of: Step S101, mold opening step: the piston rod of the lifting cylinder pushes the movable seat upward to make the A part rise to a predetermined height and maintain the height position after rising; after the A part rises to a predetermined height, the turning cylinder drives the movable seat to turn around the A part to its first side to complete the mold opening; Step S102, mold closing step: the flip cylinder drives the movable seat to flip around the A position to its second side until it is in a horizontal state; when the movable seat is flipped to a horizontal state, the die pressing cylinder presses the movable seat vertically downward, and the lifting cylinder contracts synchronously to keep the movable seat in a horizontal state and move downward.

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