EPS (Expandable Polystyrene) plastic foam molding machine

Abstract

The utility model discloses an EPS (Expandable Polystyrene) plastic foam molding machine, which comprises a base, a lower die, a hydraulic rod and an upper die, the lower die is arranged on the surface of the base, a guide post is arranged at the corner above the base, a top plate is arranged at the top end of the guide post, the hydraulic rod is arranged above the top plate, and the output end of the hydraulic rod penetrates through the top plate and is connected with a connecting plate; and the two sides of the connecting plate are arranged on the outer sides of the guide columns in a sleeving mode, a material injection opening is formed in the upper surface of the connecting plate, an upper mold is installed below the connecting plate, and a control box is arranged on one side of the top plate. According to the EPS plastic foam forming machine, through mutual cooperation of the fixing bases on the two sides of the lower mold and the side plates on the two sides of the upper mold, the lower mold and the upper mold are attached more tightly, the EPS plastic foam forming machine is provided with an auxiliary limiting structure, and under mutual cooperation of a motor and a threaded rod, the EPS plastic foam forming machine is more stable and reliable. And the lower mold can be driven to rotate and incline upwards through the movable seat and the connecting arm, so that the EPS plastic foam forming machine is convenient to take materials.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molding, in particular to an EPS plastic foam molding machine. Background Art

[0002] EPS plastic foam is a polystyrene plastic foam. EPS foam material has excellent properties such as light weight, heat insulation, shock absorption, water resistance and pressure resistance. When processing EPS plastic foam, it needs to be processed and produced by a corresponding molding machine. The molding machine makes the corresponding EPS plastic foam product through heating, foaming and molding processes. EPS plastic foam molding machine can efficiently produce EPS foam products with the advantages of low cost, short production cycle and stable product quality.

[0003] When the EPS plastic foam molding machines currently on the market are used, they generally directly use a hydraulic rod to drive the upper mold to move down and fit it with the lower mold for injection processing. The existing EPS plastic foam molding machines cannot perform auxiliary limiting on both sides of the upper mold and the lower mold, resulting in the EPS plastic foam molding machine not fitting tightly enough. Therefore, the current EPS plastic foam molding machines need to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide an EPS plastic foam molding machine to solve the problems raised by the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an EPS plastic foam molding machine, comprising a base, a lower mold, a hydraulic rod and an upper mold, the surface of the base is provided with a lower mold, the upper corner of the base is provided with a guide column, and the top of the guide column is provided with a top plate, a hydraulic rod is installed above the top plate, and the output end of the hydraulic rod passes through the top plate and is connected with a connecting plate, the two sides of the connecting plate are sleeved on the outside of the guide column, and the upper surface of the connecting plate is provided with a material injection port, the upper mold is installed below the connecting plate, and a control box is provided on one side of the top plate.

[0006] Preferably, side panels are provided on both side edges of the upper mold, and limiting grooves are provided on the outer sides of the side panels, and fixing seats are provided on both sides of the base close to the lower mold.

[0007] Preferably, an installation cavity is provided inside the fixing seat, and a limiting block passes through the interior of the installation cavity, and limiting rods connected to the inner wall of the installation cavity are passed through both sides of the limiting block.

[0008] Preferably, a spring is sleeved on the outer side of the limiting rod, one end of the spring is connected to the installation cavity, and the other end of the spring is connected to the limiting block.

[0009] Preferably, a connecting seat is provided above the base, and the connecting seat is connected to the lower mold through a bearing, an active cavity is provided inside the base, and a guide groove is provided below the base near the active cavity.

[0010] Preferably, a movable seat is provided inside the movable cavity, and a connecting arm is connected to the upper side of the movable seat via a rotating shaft, and the upper end of the connecting arm is rotatably connected to the lower mold.

[0011] Preferably, a guide block is connected to the bottom of the movable seat, and the guide block is butt-jointed and inserted in the guide groove, and a threaded rod penetrates the middle of the guide block.

[0012] Preferably, the threaded rod is connected to the inner wall of the movable cavity through a bearing seat, a motor is embedded and installed inside the base, and the output end of the motor is connected to the threaded rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the EPS plastic foam molding machine, through the mutual cooperation between the fixed seats on both sides of the lower mold and the side plates on both sides of the upper mold, makes the lower mold and the upper mold fit more closely, so that the EPS plastic foam molding machine has an auxiliary limiting structure, and under the mutual cooperation between the motor and the threaded rod, the lower mold can be driven to rotate and tilt upward through the movable seat and the connecting arm, making it convenient for the EPS plastic foam molding machine to take materials.

[0014] 1. The EPS plastic foam molding machine, as the hydraulic rod drives the connecting plate and the upper mold to move downward synchronously, the side plates on both sides of the upper mold move downward to the limit position synchronously with the downward movement of the upper mold, and the side plates squeeze the limit blocks when moving downward, so that the upper mold fits above the lower mold. At this time, the limit blocks that are not squeezed by external force can automatically reset outward by the elastic force of the spring, and the automatically reset limit blocks can penetrate the installation cavity and be inserted into the inside of the limit groove, so as to limit the lower mold and the upper mold. Through the mutual cooperation between the fixed seats on both sides of the lower mold and the side plates on both sides of the upper mold, the lower mold and the upper mold fit more closely, so that the EPS plastic foam molding machine has an auxiliary limit structure;

[0015] 2. In the EPS plastic foam molding machine, the lower mold is attached to the top of the base in the initial state. After the EPS plastic foam workpiece is formed, the threaded rod connected to the output end is driven to rotate synchronously by starting the motor. As the threaded rod rotates, the outer movable seat moves along the movable cavity. The movable seat moves synchronously through the connected connecting arm, and the movable connecting arm drives the lower mold to flip and tilt upward along the connecting seat. With the mutual cooperation between the motor and the threaded rod, the lower mold can be driven to rotate and tilt upward through the movable seat and the connecting arm, so that the EPS plastic foam molding machine is convenient for material removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0018] Figure 3 This is a schematic diagram of the main cutaway structure of the fixing seat of the utility model;

[0019] Figure 4 It is a schematic diagram of the cutaway structure of the base of the utility model from the left side.

[0020] In the figure: 1. base; 2. lower mold; 3. guide column; 4. top plate; 5. hydraulic rod; 6. connecting plate; 7. injection port; 8. upper mold; 9. control box; 10. side plate; 11. limit groove; 12. fixed seat; 13. installation cavity; 14. limit block; 15. limit rod; 16. spring; 17. connecting seat; 18. movable cavity; 19. guide groove; 20. movable seat; 21. connecting arm; 22. guide block; 23. threaded rod; 24. motor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a technical solution: an EPS plastic foam molding machine, comprising a base 1, a lower mold 2, a hydraulic rod 5 and an upper mold 8, the surface of the base 1 is provided with a lower mold 2, a guide column 3 is provided at the upper corner of the base 1, and a top plate 4 is provided at the top of the guide column 3, a hydraulic rod 5 is installed above the top plate 4, and the output end of the hydraulic rod 5 passes through the top plate 4 and is connected to a connecting plate 6, both sides of the connecting plate 6 are sleeved on the outside of the guide column 3, and an injection port 7 is provided on the upper surface of the connecting plate 6, an upper mold 8 is installed below the connecting plate 6, and a control box 9 is provided on one side of the top plate 4.

[0023] Side panels 10 are provided on both side edges of the upper mold 8, and limiting grooves 11 are provided on the outer sides of the side panels 10, and fixed seats 12 are provided on both sides of the base 1 close to the lower mold 2; an installation cavity 13 is provided inside the fixed seat 12, and a limiting block 14 passes through the inside of the installation cavity 13, and limiting rods 15 connected to the inner wall of the installation cavity 13 are passed through on both sides of the limiting block 14; a spring 16 is sleeved on the outer side of the limiting rod 15, one end of the spring 16 is connected to the installation cavity 13, and the other end of the spring 16 is connected to the limiting block 14, the limiting blocks 14 are distributed at equal intervals, and the limiting blocks 14 form a telescopic structure through the spring 16 and the installation cavity 13, and the fixed seat 12 is symmetrically distributed about the center line of the lower mold 2.

[0024] During specific implementation, the limit block 14 in the initial state extends outward from the outside of the fixed seat 12. As the hydraulic rod 5 drives the connecting plate 6 and the upper mold 8 to move downward synchronously, the side plates 10 on both sides of the upper mold 8 move downward synchronously with the downward movement of the upper mold 8. When the side plates 10 move downward, the limit block 14 is squeezed. The limit block 14 squeezed by the external force moves along the limit rod 15 toward the inside of the installation cavity 13. The moving limit block 14 squeezes the spring 16 sleeved on the outside of the limit rod 15 until the upper mold 8 moves downward to the limit position and fits above the lower mold 2, and the limit block 14 is completely squeezed into the inside of the limit groove 11. At this time, the limit groove 11 Corresponding to the position of the limit block 14, the limit block 14 that is not squeezed by external force can automatically reset outward under the elastic force of the spring 16, and the automatically reset limit block 14 can pass through the installation cavity 13 and be inserted into the inside of the limit groove 11, so as to limit the position between the lower mold 2 and the upper mold 8. Subsequently, the raw material of the EPS plastic foam is injected into the space between the lower mold 2 and the upper mold 8 through the injection port 7. Through the mutual cooperation between the fixed seat 12 on both sides of the lower mold 2 and the side plates 10 on both sides of the upper mold 8, the lower mold 2 and the upper mold 8 are more closely fitted, so that the EPS plastic foam molding machine has an auxiliary limiting structure.

[0025] See also Figure 1 and Figure 4A connecting seat 17 is arranged above the base 1, and the connecting seat 17 is connected to the lower mold 2 through a bearing, a movable cavity 18 is opened inside the base 1, and a guide groove 19 is opened below the base 1 near the movable cavity 18; a movable seat 20 is arranged inside the movable cavity 18, and a connecting arm 21 is connected to the upper side of the movable seat 20 through a rotating shaft, and the upper end of the connecting arm 21 is rotatably connected to the lower mold 2; a guide block 22 is connected to the bottom of the movable seat 20, and the guide block 22 is butt-plugged and arranged inside the guide groove 19, and a threaded rod 23 passes through the middle of the guide block 22; the threaded rod 23 is connected to the inner wall of the movable cavity 18 through a bearing seat, a motor 24 is embedded and installed inside the base 1, and the output end of the motor 24 is connected to the threaded rod 23, the threaded rod 23 and the movable seat 20 are threadedly connected, the lower mold 2 is rotatably connected to the connecting seat 17 through the rotating shaft, and the guide block 22 is slidably connected to the guide groove 19.

[0026] During specific implementation, the lower mold 2 in the initial state is attached to the top of the base 1. After the EPS plastic foam is formed, the threaded rod 23 connected to the output end is driven to rotate synchronously by starting the motor 24. Since the threaded rod 23 and the movable seat 20 are threadedly connected, the outer movable seat 20 can be moved along the movable cavity 18 as the threaded rod 23 rotates. The movable seat 20 moves synchronously through the connected connecting arm 21. The movable connecting arm 21 drives the lower mold 2 to flip and tilt upward along the connecting seat 17, and the movable seat 20 drives the connected guide block 22 to move stably along the inside of the guide groove 19. With the mutual cooperation between the motor 24 and the threaded rod 23, the lower mold 2 can be driven to rotate and tilt upward through the movable seat 20 and the connecting arm 21, so that the EPS plastic foam product inside the lower mold 2 is tilted outward, thereby making it convenient for the EPS plastic foam molding machine to take materials.

[0027] To sum up, when using the EPS plastic foam molding machine, first move the molding machine to the designated working area, then connect the molding machine to the power supply, and start the hydraulic rod 5 to drive the connecting plate 6 and the upper mold 8 to move downward synchronously. The downward moving connecting plate 6 moves steadily along the guide column 3 until the upper mold 8 fits the surface of the docking lower mold 2, and the raw material of the EPS plastic foam can be injected into the space between the lower mold 2 and the upper mold 8 through the injection port 7 until the molding operation is completed. Finally, the connecting plate 6 and the upper mold 8 are driven upward by the hydraulic rod 5 to separate the upper mold 8 and the lower mold 2, and the finished EPS plastic foam workpiece in the upper mold 8 can be taken out. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An EPS plastic foam molding machine, comprising a base (1), a lower mold (2), a hydraulic rod (5) and an upper mold (8), characterized in that: The surface of the base (1) is provided with a lower mold (2), the upper corner of the base (1) is provided with a guide column (3), and the top of the guide column (3) is provided with a top plate (4), a hydraulic rod (5) is installed above the top plate (4), and the output end of the hydraulic rod (5) passes through the top plate (4) and is connected to a connecting plate (6), both sides of the connecting plate (6) are sleeved on the outside of the guide column (3), and the upper surface of the connecting plate (6) is provided with a material injection port (7), an upper mold (8) is installed below the connecting plate (6), a control box (9) is provided on one side of the top plate (4), and both side edges of the upper mold (8) are provided with A side plate (10) is provided, and a limiting groove (11) is provided on the outer side of the side plate (10); a fixing seat (12) is provided on both sides of the base (1) close to the lower mold (2); a mounting cavity (13) is provided inside the fixing seat (12); a limiting block (14) passes through the inside of the mounting cavity (13); limiting rods (15) connected to the inner wall of the mounting cavity (13) are passed through both sides of the limiting block (14); a spring (16) is sleeved on the outer side of the limiting rod (15); one end of the spring (16) is connected to the mounting cavity (13), and the other end of the spring (16) is connected to the limiting block (14).

2. The EPS plastic foam molding machine according to claim 1, characterized in that: A connecting seat (17) is arranged above the base (1), and the connecting seat (17) is connected to the lower mold (2) via a bearing. An active cavity (18) is provided inside the base (1), and a guide groove (19) is provided below the base (1) near the active cavity (18).

3. The EPS plastic foam molding machine according to claim 2, characterized in that: A movable seat (20) is arranged inside the movable cavity (18), and a connecting arm (21) is connected to the upper side of the movable seat (20) via a rotating shaft, and the upper end of the connecting arm (21) is rotatably connected to the lower mold (2).

4. The EPS plastic foam molding machine according to claim 3, characterized in that: The bottom of the movable seat (20) is connected with a guide block (22), and the guide block (22) is butt-jointed and inserted into the inside of the guide groove (19), and a threaded rod (23) penetrates the middle of the guide block (22).

5. The EPS plastic foam molding machine according to claim 4, characterized in that: The threaded rod (23) is connected to the inner wall of the movable cavity (18) via a bearing seat, a motor (24) is embedded and installed inside the base (1), and the output end of the motor (24) is connected to the threaded rod (23).

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