Plastic lunch box blister production forming device

Abstract

The utility model relates to the technical field of plastic meal box production, and discloses a plastic meal box blister production forming device which comprises a machine body, a lower mold is fixedly connected to the middle of the inner side of the machine body, and a positive and negative pressure gas conveying pipe is installed at the bottom of the lower mold and connected with an external vacuum pump. A cooling chamber is formed in the inner side of the upper end of the machine body; the cooling chamber is arranged on the inner side of the upper end of the machine body, the servo motor is used for driving the transmission lead screws connected with the cooling chamber to rotate, the two transmission lead screws are connected through the synchronous belt, so that the two transmission lead screws synchronously rotate, and when the transmission lead screws rotate, the movable fan frame can move in the cooling chamber in the axial direction of the transmission lead screws; therefore, the cooling fan moves synchronously, surrounding air can be blown to the bottom of the lower mold to take away heat, forced cooling of the lower mold is achieved, the cooling and shaping process of the meal box is accelerated, the cooling time is remarkably shortened, and the large-batch production requirement is met.

Description

Technical Field

[0001] The present application relates to the field of plastic lunch box production technology, and in particular to a plastic lunch box blister production and molding device. Background Art

[0002] Plastic lunch boxes play a vital role in modern life. Whether it is daily use in households, restaurant takeout, or packaging needs of various food processing companies, plastic lunch boxes have become widely used packaging containers due to their advantages such as lightness, durability, and low cost. With the continuous improvement of people's living standards and the change of consumption concepts, the demand for plastic lunch boxes has not only continued to grow in quantity, but also put forward higher requirements in terms of quality and appearance.

[0003] At present, in the blister production process of plastic lunch boxes, most molding devices adopt a natural cooling demoulding method. After the heated and softened plastic sheet is adsorbed on the mold for molding, it is gradually cooled by relying on the temperature of the natural environment. The lunch box is demoulded after cooling to a certain degree. This method has low demoulding efficiency and takes a long time to cool naturally. The equipment has to wait for the lunch box to cool naturally during the production process, thereby extending the production cycle and failing to meet the requirements of mass production. For this reason, we urgently need to provide a plastic lunch box blister production molding device.

[0004] The above information disclosed in this background technology is only used to increase the understanding of the background technology of this application. Therefore, it may contain information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0005] In order to solve the problem that natural cooling takes a long time, which forces the equipment to wait for the lunch boxes to cool naturally during the production process, thereby extending the production cycle and failing to meet the requirements of mass production, the present application provides a plastic lunch box blister production and molding device.

[0006] The present application provides a plastic lunch box blister production and molding device that adopts the following technical solutions:

[0007] The evaporation molding device of the present invention is a kind of blister production and forming device for plastic lunch box, comprises a body, the middle part of the inner side of the body is fixedly connected to the lower mold, the bottom of the lower mold is equipped with positive and negative pressure air supply pipes, the positive and negative pressure air supply pipes are connected to the external vacuum pump, a cooling chamber is opened on the inner side of the upper end of the body, the cooling chamber is arranged at the bottom of the lower mold, two transmission screws are arranged inside the cooling chamber, a servo motor is installed on the side of the body, the output end of the servo motor passes through the body and is connected to one of the transmission screws, the two transmission screws pass through the cooling chamber away from the servo motor and extend to the outside of the body and are respectively connected to a driving pulley and a driven pulley, the driving pulley is installed at one end of the transmission screw close to the servo motor, the surfaces of the driving pulley and the driven pulley are movably connected with a synchronous belt, a movable fan frame is provided in the middle of the cooling chamber, the two sides of the movable fan frame are respectively threadedly connected to the surfaces of the two transmission screws, a plurality of heat dissipation fans are installed on the inner side of the movable fan frame, and the output ends of the plurality of heat dissipation fans correspond to the bottom of the lower mold.

[0008] Preferably, the upper end of the machine body is fixedly connected to a top frame, and a cylinder is installed on the top of the top frame.

[0009] Preferably, the output end of the cylinder passes through the top frame and is connected to a movable seat, four limiting columns are evenly installed on the inner side of the upper end of the top frame, and the bottoms of the four limiting columns are respectively fixedly connected to the upper end of the machine body.

[0010] Preferably, the four corners of the movable seat are slidably connected to the surfaces of four limiting columns respectively.

[0011] Preferably, the bottom of the movable seat is fixedly connected to an electric heating plate, and the bottom of the electric heating plate corresponds to the upper end of the lower mold.

[0012] In summary, this application has the following beneficial technical effects:

[0013] The utility model sets a cooling chamber on the inner side of the upper end of the machine body, and uses a servo motor to drive the transmission screw connected thereto to rotate. Since the two transmission screws are connected by a synchronous belt, the two transmission screws rotate synchronously. When the transmission screws rotate, the movable fan frame moves along the axial direction of the transmission screws in the cooling chamber, thereby causing the heat dissipation fan to move synchronously, blowing the surrounding air to the bottom of the lower mold to take away the heat, thereby realizing forced cooling of the lower mold, accelerating the cooling and shaping process of the lunch box, significantly shortening the cooling time, and meeting the needs of mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall main view structure of the embodiment of the application;

[0015] Figure 2 This is a schematic diagram of the internal structure of the machine body of the embodiment of the application;

[0016] Figure 3 Schematic diagram of the internal structure of the cooling chamber of the embodiment of the application.

[0017] Explanation of the accompanying symbols: 1. Machine body; 2. Machine top frame; 3. Lower mold; 4. Positive and negative pressure air pipes; 5. Cylinder; 6. Movable seat; 7. Limit column; 8. Electric heating plate; 9. Cooling chamber; 10. Servo motor; 11. Transmission screw; 12. Driving pulley; 13. Synchronous belt; 14. Driven pulley; 15. Movable fan frame; 16. Cooling fan. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-3 This application is described in further detail.

[0019] The present application discloses a plastic lunch box blister production and molding device, referring to Figure 1-Figure 3 , including a body 1, a lower mold 3 is fixedly connected to the middle part of the inner side of the body 1, and positive and negative pressure air supply pipes 4 are installed at the bottom of the lower mold 3, and the positive and negative pressure air supply pipes 4 are connected to an external vacuum pump. The positive and negative pressure air supply pipes 4 installed at the bottom of the lower mold 3 are connected to the external vacuum pump, which can realize rapid air extraction to form a negative pressure inside the mold, so that the plastic sheet can be tightly adsorbed on the mold for molding. When demolding, air can also be injected through the pipeline to balance the pressure, which facilitates the smooth demolding of the lunch box and improves production efficiency and product quality. A cooling chamber 9 is opened on the inner side of the upper end of the body 1, and the cooling chamber 9 is provided at the bottom of the lower mold 3. Two transmission screws 11 are provided inside the cooling chamber 9, and a servo motor 10 is installed on the side of the body 1. The output end of the servo motor 10 passes through the body 1 and is connected to one of the transmission screws. The two transmission screws 11 pass through the cooling chamber 9 away from the side of the servo motor 10 and extend to the outside of the body 1 and are respectively connected to a driving pulley 12 and a driven pulley 14. The driving pulley 12 is arranged The servo motor 10 drives the transmission screw 11 connected thereto to rotate. Since the two transmission screws 11 are connected by the synchronous belt 13, the two transmission screws 11 rotate synchronously. A movable fan frame 15 is provided in the middle of the cooling chamber 9. The two sides of the movable fan frame 15 are respectively threadedly connected to the surfaces of the two transmission screws 11. A plurality of heat dissipation fans 16 are installed on the inner side of the movable fan frame 15. The output ends of the plurality of heat dissipation fans 16 correspond to the bottom of the lower mold 3. When the transmission screw 11 rotates, the movable fan frame 15 will move along the axial direction of the transmission screw 11 in the cooling chamber 9, so that the heat dissipation fans 16 move synchronously, and the surrounding air will be blown to the bottom of the lower mold 3 to take away the heat, thereby realizing forced cooling of the lower mold 3, accelerating the cooling and shaping process of the lunch box, significantly shortening the cooling time, and meeting the needs of mass production.

[0020] Reference Figure 1-Figure 3 The upper end of the machine body 1 is fixedly connected to the organic top frame 2, and the top of the machine top frame 2 is equipped with a cylinder 5. The output end of the cylinder 5 passes through the machine top frame 2 and is connected to a movable seat 6. Four limit columns 7 are evenly installed on the inner side of the upper end of the machine top frame 2. The bottoms of the four limit columns 7 are respectively fixedly connected to the upper end of the machine body 1, and the four corners of the movable seat 6 are respectively slidably connected to the surfaces of the four limit columns 7. The four limit columns 7 provide a stable guide for the up and down movement of the movable seat 6 to ensure that its motion trajectory is accurate, which is conducive to improving the working accuracy of the device. The bottom of the movable seat 6 is fixedly connected to an electric heating plate 8, and the bottom of the electric heating plate 8 corresponds to the upper end of the lower mold 3. When it is necessary to heat the plastic sheet, the electric heating plate 8 is energized, and the heating elements such as the resistance wire inside the electric heating plate 8 start to heat up, converting electrical energy into thermal energy. The heat generated by the electric heating plate 8 is transferred to the corresponding position on the upper end of the lower mold 3 through its bottom, heating the plastic sheet placed at this position, softening the plastic sheet, and allowing for subsequent blister molding operations.

[0021] The implementation principle of the plastic lunch box blister production and molding device of the embodiment of the present application is as follows: when in use, first, the plastic sheet is placed under the electric heating plate 8 at a position corresponding to the upper end of the lower mold 3, then the cylinder 5 is started, and the output end of the cylinder 5 pushes the movable seat 6 to move downward along the limit column 7, and the electric heating plate 8 at the bottom of the movable seat 6 contacts the plastic sheet and heats it to soften it. Then, when the plastic sheet is softened to a suitable degree, the external vacuum pump is started, and the inside of the lower mold 3 is evacuated through the positive and negative pressure air pipes 4, so that the softened plastic sheet is adsorbed on the lower mold 3 for molding. After molding, Start the servo motor 10, which drives one of the transmission screws 11 to rotate. The two transmission screws 11 rotate synchronously through the synchronous belt 13. The transmission screw 11 drives the movable fan frame 15 to move in the cooling chamber 9. The heat dissipation fan 16 on the inside of the movable fan frame 15 forces the bottom of the lower mold 3 to cool. When the lunch box is cooled to a suitable degree, air is injected into the lower mold 3 through the positive and negative pressure air pipes 4 to balance the pressure inside and outside the mold, so as to facilitate the removal of the formed lunch box from the lower mold 3, completing a production cycle. Then, the next production operation can be carried out, the material can be re-taken, and the above process is repeated.

[0022] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0023] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0024] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0025] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A plastic lunch box blister production and molding device, comprising a body (1), characterized in that: The lower mold (3) is fixedly connected to the middle of the inner side of the machine body (1), and the bottom of the lower mold (3) is installed with a positive and negative pressure air supply pipe (4), and the positive and negative pressure air supply pipe (4) is connected to an external vacuum pump. A cooling chamber (9) is opened on the inner side of the upper end of the machine body (1), and the cooling chamber (9) is arranged at the bottom of the lower mold (3). Two transmission screws (11) are arranged inside the cooling chamber (9). A servo motor (10) is installed on the side of the machine body (1), and the output end of the servo motor (10) passes through the machine body (1) and is connected to one of the transmission screws. The two transmission screws (11) pass through the cooling chamber (9) on the side away from the servo motor (10). The cooling chamber (9) is provided with a movable fan frame (15) in the middle part, and the two sides of the movable fan frame (15) are respectively threadedly connected to the surfaces of the two transmission screws (11). A plurality of heat dissipation fans (16) are installed on the inner side of the movable fan frame (15), and the output ends of the plurality of heat dissipation fans (16) correspond to the bottom of the lower mold (3).

2. A plastic lunch box blister production and molding device according to claim 1, characterized in that: The upper end of the machine body (1) is fixedly connected to a top frame (2), and a cylinder (5) is installed on the top of the top frame (2).

3. A plastic lunch box blister production and molding device according to claim 2, characterized in that: The output end of the cylinder (5) passes through the machine top frame (2) and is connected to a movable seat (6). Four limiting columns (7) are evenly installed on the inner side of the upper end of the machine top frame (2). The bottoms of the four limiting columns (7) are respectively fixedly connected to the upper end of the machine body (1).

4. A plastic lunch box blister production and molding device according to claim 3, characterized in that: The four corners of the movable seat (6) are respectively slidably connected to the surfaces of four limiting columns (7).

5. The plastic lunch box blister production and molding device according to claim 3, characterized in that: The bottom of the movable seat (6) is fixedly connected to an electric heating plate (8), and the bottom of the electric heating plate (8) corresponds to the upper end of the lower mold (3).

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