Foam plastic forming device for EPP (Expanded Polypropylene) product

Abstract

The utility model discloses an EPP product foam plastic forming device which comprises a base, a static mold and a movable mold are arranged on the top side of the base, heating cavities are formed in the static mold and the movable mold, heaters are arranged in the heating cavities, a main frame is arranged at the top end of the base, and a driving assembly is arranged on the main frame. The driving assembly comprises a ball screw installed on the inner side of the main frame, the bottom of the ball screw is connected with a third hydraulic cylinder, and a material taking assembly is arranged at the bottom of the third hydraulic cylinder. The material taking assembly comprises a material taking platform connected to the bottom of the third hydraulic cylinder, a splitter plate is arranged on one side of the material taking platform, a plurality of adsorption channels are laid on the splitter plate, electromagnetic valves are arranged on the adsorption channels, adsorption heads are inserted into one sides of the adsorption channels, the adsorption heads and the adsorption channels are in sliding connection, and a negative pressure pump is installed on the other side of the material taking platform. According to the device, the adsorption position can be adjusted according to the position of a product, so that the device is suitable for replacing mold cores of different static molds and movable molds, and the product adsorption efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of EPP products, in particular to a foaming and molding device for EPP products. Background Art

[0002] EPP products usually refer to goods made of EPP (Ethylene Propylene Polymer) materials; EPP foam molding is a process for manufacturing lightweight, high-strength parts and products with good cushioning properties. EPP materials are widely used in industries such as automobiles, packaging, construction and sporting goods due to their excellent properties such as heat resistance, chemical resistance, energy absorption capacity and recyclability.

[0003] At present, EPP products require the use of foam production molds in the foam production process. In order to improve production efficiency, the foam production molds usually have multiple cavities in one mold, which will increase the time for picking up materials. The current method of picking up materials usually uses a robotic arm to drive a suction cup to pick up materials, and the suction cup is set in a fixed position. After the mold is replaced, the mold cavity will not correspond to the suction cup position, and the suction cup setting cannot be adjusted, resulting in the suction cup being unable to accurately correspond to the product, affecting the adsorption effect, so it needs to be improved. Utility Model Content

[0004] The utility model aims to provide an EPP product foam molding device to solve the problem that the suction cup mentioned in the background technology cannot adjust the suction position of products at different positions.

[0005] To achieve the above object, the utility model provides the following technical solutions: an EPP product foam molding device, comprising a base, a static mold and a dynamic mold are arranged on the top side of the base, a heating cavity is opened inside the static mold and the dynamic mold, a heater is arranged inside the heating cavity, a main frame is arranged on the top of the base, and a driving component is arranged on the main frame;

[0006] The driving assembly includes a ball screw installed on the inner side of the main frame, the bottom of the ball screw is connected to a third hydraulic cylinder, and the bottom of the third hydraulic cylinder is provided with a material taking assembly;

[0007] The material picking assembly includes a material picking platform connected to the bottom of the third hydraulic cylinder, a diverter plate is arranged on one side of the material picking platform, a plurality of adsorption channels are arranged flatly on the diverter plate, an electromagnetic valve is arranged on the adsorption channel, an adsorption head is inserted into one side of the adsorption channel, and the adsorption head and the adsorption channel form a sliding connection, a negative pressure pump is installed on the other side of the material picking platform, and the negative pressure pump is connected to the diverter plate through a hose.

[0008] Preferably, a protective cover is fixedly connected to the outer wall of the diverter plate, the protective cover is sleeved on the outer wall of the adsorption channel, and one end of the protective cover is fixedly connected to the outer wall of the adsorption head.

[0009] Preferably, the protective cover is made of plastic material, an interlayer is provided inside the protective cover, and a supporting spring is provided inside the interlayer.

[0010] Preferably, a motor is installed on one side of the main frame, and the shaft of the motor is connected to one side of the ball screw through a coupling.

[0011] Preferably, a fixing frame is fixedly connected to the top side of the base, a second hydraulic cylinder is installed on one side of the fixing frame, and one end of the second hydraulic cylinder is connected to the movable mold.

[0012] Preferably, a feed port is provided on the movable mold, a feeding channel is inserted inside the feed port, a first hydraulic cylinder is installed on the outer wall of the movable mold, a sealing plug is connected to one end of the first hydraulic cylinder, and the sealing plug is inserted inside the feeding channel.

[0013] Preferably, a feeding pipe is connected to the top of the feeding channel, and the feeding pipe is located on one side of the sealing plug.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The device can adjust the adsorption position according to the position of the product, so that it is suitable for replacing the cores of different static molds and dynamic molds, thereby improving the efficiency of product absorption.

[0016] (2) The device is provided with a material taking platform which can automatically move laterally and automatically rise and fall. The material taking platform can be moved between the static mold and the dynamic mold. The device utilizes multiple adsorption channels on the inner side of the material taking platform. The adsorption channels are opened and closed by electromagnetic valves. The adsorption channels at the corresponding positions can be opened according to the positions of the products, thereby ensuring the stability of adsorption of products at different positions.

[0017] (3) By arranging a movable adsorption head on one side of the adsorption channel, the device can stably absorb the product at different heights when adsorbing the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of an EPP product foam molding device of the utility model;

[0019] Figure 2 This is a cross-sectional view of an EPP product foam molding device of the utility model;

[0020] Figure 3 The utility model is an EPP product foam molding device Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 It is a side view of a diverter plate of an EPP product foam molding device of the utility model.

[0022] In the figure: 1. base; 2. static mold; 3. dynamic mold; 4. feeding channel; 5. feeding pipe; 6. first hydraulic cylinder; 7. fixed frame; 8. second hydraulic cylinder; 9. drive assembly; 91. motor; 92. ball screw; 93. third hydraulic cylinder; 10. main frame; 11. material picking assembly; 111. material picking platform; 112. diverter plate; 113. negative pressure pump; 114. adsorption channel; 115. solenoid valve; 116. protective cover; 117. support spring; 118. adsorption head; 12. heater; 13. sealing plug. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4The utility model provides a technical solution: an EPP product foam molding device, comprising a base 1, a static mold 2 and a dynamic mold 3 are arranged on the top side of the base 1, a fixed frame 7 is fixedly connected to the top side of the base 1, a second hydraulic cylinder 8 is installed on one side of the fixed frame 7, and one end of the second hydraulic cylinder 8 is connected to the dynamic mold 3; this structure can push the dynamic mold 3 and the static mold 2 to open and close the mold through the second hydraulic cylinder 8; a feed port is opened on the dynamic mold 3, a feeding channel 4 is inserted inside the feed port, a first hydraulic cylinder 6 is installed on the outer wall of the dynamic mold 3, one end of the first hydraulic cylinder 6 is connected to a sealing plug 13, and the sealing plug 13 is inserted inside the feeding channel 4; this structure can push the sealing plug 13 to rotate and move through the first hydraulic cylinder 6; a feeding pipe 5 is connected to the top of the feeding channel 4, and the feeding pipe 5 is located on one side of the sealing plug 13; this structure can seal the feeding channel 4 when it is pushed to the end of the feeding channel 4 by the sealing plug 13, thereby ensuring The quality of foam production; when the sealing plug 13 is located on the left side of the feeding tube 5, the feeding work cannot be carried out. When the sealing plug 13 is located on the right side of the feeding tube 5, the material can pass through the feeding tube 5 and the feeding channel 4 into the dynamic mold 3; during the operation of this device, the feeding tube 5 is connected to the material preheating box, and a pump is used as a power source when the material is fed; a heating chamber is provided inside the static mold 2 and the dynamic mold 3, and a heater 12 is provided inside the heating chamber. A main frame 10 is provided at the top of the base 1, and a motor 91 is installed on one side of the main frame 10. The shaft of the motor 91 is connected to one side of the ball screw 92 through a coupling. The ball screw 92 is composed of a threaded rod, a fixed seat and a screw slide; this structure can drive the threaded rod to rotate through the motor 91, and the threaded rod drives the screw slide to move linearly, and the bottom of the screw slide is fixedly connected to the third hydraulic cylinder 93, so that the third hydraulic cylinder 93 can be driven to move horizontally; a driving component 9 is provided on the main frame 10;

[0025] The driving assembly 9 includes a ball screw 92 installed on the inner side of the main frame 10, a third hydraulic cylinder 93 is connected to the bottom of the ball screw 92, and a material taking assembly 11 is arranged at the bottom of the third hydraulic cylinder 93;

[0026] The material taking component 11 includes a material taking platform 111 connected to the bottom of the third hydraulic cylinder 93, a diverter plate 112 is arranged on one side of the material taking platform 111, a protective cover 116 is fixedly connected to the outer wall of the diverter plate 112, the protective cover 116 is sleeved on the outer wall of the adsorption channel 114, and one end of the protective cover 116 is fixedly connected to the outer wall of the adsorption head 118; the protective cover 116 is made of plastic material, and a sandwich is provided inside the protective cover 116, and a support spring 117 is arranged inside the sandwich; this structure can improve the sealing of the connection between the adsorption channel 114 and the adsorption head 118 by arranging the protective cover 116, and avoid serious air leakage; by arranging the support spring 117, the adsorption head 118 can be made to perform linear reciprocating motion, which is convenient for adsorption The head 118 is fitted at different heights of the product; a plurality of adsorption channels 114 are laid flat on the diverter plate 112, and a solenoid valve 115 is provided on the adsorption channel 114. An adsorption head 118 is inserted on one side of the adsorption channel 114, and the adsorption head 118 forms a sliding connection with the adsorption channel 114. A negative pressure pump 113 is installed on the other side of the material taking platform 111, and the negative pressure pump 113 is connected to the diverter plate 112 through a hose; the negative pressure pump 113 can generate suction at the adsorption channel 114 of the diverter plate 112, so as to facilitate the adsorption of the product; by arranging a solenoid valve 115 on each adsorption channel 114, the individual control of the adsorption channel 114 can be achieved, so that the adsorption channel 114 can be adjusted according to the product position.

[0027] Working principle: When using the EPP product foam molding device, first, after the product is formed, the second hydraulic cylinder 8 drives the movable mold 3 to open the mold, so that the movable mold 3 is separated from the product first, and then the motor 91 drives the ball screw 92 to operate, so that the third hydraulic cylinder 93 at the bottom of the ball screw 92 moves from left to right. During the movement, the third hydraulic cylinder 93 drives the material taking platform 111 to be located at the top of the movable mold 3 and the static mold 2. Then, the third hydraulic cylinder 93 pushes the material taking platform 111 down to be located between the movable mold 3 and the static mold 2. Then, the material taking platform 111 moves to the product. The adsorption head 118 on the diverter plate 112 on the inner side of the material-collecting platform 111 is moved and brought into contact with the surface of the product. When the adsorption head 118 is subjected to pressure, the adsorption head 118 contracts toward the inside of the adsorption channel 114 under the action of the support spring 117. Then, according to the position of the product, the solenoid valve 115 on the adsorption channel 114 corresponding to the product position is opened. Then, the negative pressure pump 113 is turned on, and suction is generated at the adsorption channel 114 and the adsorption head 118 to adsorb the product. Then, the material-collecting platform 111 is moved and raised to reset, and the product is automatically taken out, thereby improving the product discharge efficiency.

[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 EPP product foam molding device, comprising a base (1), a static mold (2) and a dynamic mold (3) are arranged on the top side of the base (1), a heating cavity is provided inside the static mold (2) and the dynamic mold (3), and a heater (12) is arranged inside the heating cavity, characterized in that: A main frame (10) is arranged at the top of the base (1), and a driving assembly (9) is arranged on the main frame (10); The driving assembly (9) comprises a ball screw (92) installed inside the main frame (10), the bottom of the ball screw (92) is connected to a third hydraulic cylinder (93), and the bottom of the third hydraulic cylinder (93) is provided with a material taking assembly (11); The material taking component (11) comprises a material taking platform (111) connected to the bottom of the third hydraulic cylinder (93); a diverter plate (112) is arranged on one side of the material taking platform (111); a plurality of adsorption channels (114) are arranged flat on the diverter plate (112); a solenoid valve (115) is arranged on the adsorption channel (114); an adsorption head (118) is inserted on one side of the adsorption channel (114); the adsorption head (118) and the adsorption channel (114) are slidably connected; a negative pressure pump (113) is installed on the other side of the material taking platform (111); and the negative pressure pump (113) and the diverter plate (112) are connected via a hose.

2. The EPP product foam molding device according to claim 1, characterized in that: The outer wall of the diverter plate (112) is fixedly connected with a protective cover (116), the protective cover (116) is sleeved on the outer wall of the adsorption channel (114), and one end of the protective cover (116) is fixedly connected to the outer wall of the adsorption head (118).

3. The EPP product foam molding device according to claim 2, characterized in that: The protective cover (116) is made of plastic material, an interlayer is provided inside the protective cover (116), and a supporting spring (117) is provided inside the interlayer.

4. The EPP product foam molding device according to claim 1, characterized in that: A motor (91) is installed on one side of the main frame (10), and the shaft of the motor (91) is connected to one side of a ball screw (92) via a coupling.

5. The EPP product foam molding device according to claim 1, characterized in that: A fixing frame (7) is fixedly connected to the top side of the base (1), a second hydraulic cylinder (8) is installed on one side of the fixing frame (7), and one end of the second hydraulic cylinder (8) is connected to the movable mold (3).

6. The EPP product foam molding device according to claim 1, characterized in that: The movable mold (3) is provided with a feed port, a feeding channel (4) is inserted inside the feed port, a first hydraulic cylinder (6) is installed on the outer wall of the movable mold (3), one end of the first hydraulic cylinder (6) is connected to a sealing plug (13), and the sealing plug (13) is inserted inside the feeding channel (4).

7. The EPP product foam molding device according to claim 6, characterized in that: The top end of the feeding channel (4) is connected to a feeding pipe (5), and the feeding pipe (5) is located on one side of the sealing plug (13).

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