Negative pressure adsorption opening device for dumpling holding box

Abstract

The utility model discloses a kind of negative pressure suction open tray devices of tang tray, belong to blister mould related technical field, a kind of negative pressure suction open tray device of tang tray, including blister mould, negative pressure suction hole being arrayed and being opened in the inner chamber bottom of the blister mould, the suction head being installed in the bottom of the blister mould and the communication cavity being set on the blister mould and being connected with the negative pressure suction hole and the suction head conduction, the inner chamber bottom of the blister mould is opened with receiving groove in twos symmetry, the bottom wall of the receiving groove is opened with guide groove, the upper portion of the receiving groove is fixedly connected with guide rod through support, slidingly connected with movable seat on the guide rod, the bottom of the movable seat is integrally formed with the guide block slidingly connected with the guide groove, the top of the movable seat is hinged with support arm, it can be closed after through negative pressure system, spring reset, to make the support cover pop up and support box in forming cavity is lifted, it is beneficial to stripping.

Description

Technical Field

[0001] This utility model relates to the technical field of blister molds, and more specifically, to a negative pressure adsorption opening device for a glutinous rice ball tray. Background Technology

[0002] Vacuum forming molds are tools used in the vacuum forming process to shape products by heating and softening plastic sheets under vacuum. They are widely used in packaging, toys, medical, and automotive industries. The manufacturing process requires selecting an appropriate mold based on production needs; common types include plaster molds, electroplated copper molds, and aluminum alloy molds. Currently, the production of glutinous rice ball trays typically utilizes vacuum forming molds.

[0003] In the existing production of glutinous rice ball trays, the plastic material used for processing needs to be heated and then vacuum-formed under negative pressure using a vacuum forming mold. As the plastic material becomes more viscous during heating, the formed glutinous rice ball trays tend to stick to the mold cavity, making them difficult to demold. Therefore, we propose a negative pressure adsorption tray opening device for glutinous rice ball trays to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical problems to be solved To address the problems existing in the prior art, the purpose of this utility model is to provide a negative pressure adsorption opening device for a glutinous rice ball tray. After the negative pressure system is closed, the spring returns to its original position, causing the tray cover to spring up and lift the tray in the molding cavity, which is beneficial for demolding.

[0005] 2. Technical Solution To solve the above problems, the present invention adopts the following technical solution.

[0006] A negative pressure adsorption opening device for a glutinous rice ball tray includes a blister mold, negative pressure suction holes arranged in an array at the bottom of the inner cavity of the blister mold, a blister head installed at the bottom of the blister mold, and a communicating cavity disposed on the blister mold and connected to the negative pressure suction holes and the blister head. The bottom of the inner cavity of the blister mold is provided with two symmetrical storage grooves, and the bottom wall of the storage groove is provided with a guide groove. A guide rod is fixedly connected to the top of the storage slot via a bracket. A movable seat is slidably connected to the guide rod. A guide block that is slidably connected to the guide slot is integrally formed at the bottom of the movable seat. A support arm is hinged to the top of the movable seat. A shaft head is installed at the end of the support arm away from the movable seat. The inner wall of the vacuum forming mold has an assembly groove at its root. A support cover that forms an embedded structure with the storage groove is hinged to the assembly groove. The side wall of the support cover has a connection hole that is rotatably connected to the shaft head. A spring is fitted onto the end of the guide rod that is away from the inner wall of the vacuum forming mold.

[0007] Furthermore, the end of the storage groove away from the inner wall of the blister mold has a chamfered edge.

[0008] Furthermore, a connecting shaft is installed at the end of the support cover, and the connecting shaft is connected to the inner wall of the assembly groove through a bearing.

[0009] Furthermore, a bearing with an inner ring that is interference-fitted to the shaft head is installed on the inner side of the connecting hole.

[0010] Furthermore, one end of the spring abuts against the bracket connected to the guide rod, and the other end of the spring is connected to the movable seat.

[0011] Furthermore, the upper surface of the support cover has a smooth surface structure, and the upper surface of the support cover is coated with a polytetrafluoroethylene coating.

[0012] Furthermore, the bottom of the vacuum forming mold is provided with a hemispherical forming cavity that is connected to the negative pressure suction hole.

[0013] 3. Beneficial Effects Compared with existing technologies, the advantages of this utility model are: (1) In this scheme, the air in the forming cavity of the vacuum mold is extracted by the negative pressure suction hole and the connecting cavity. Under the action of negative pressure, the tray is formed. At the same time, the tray cover is rotated and pressed into the inner side of the storage groove. Meanwhile, the support arm hinged on the movable seat is moved by the shaft head and the connecting hole. The guide rod pushes the movable seat to move. At the same time, the guide block is used to guide the guide and the spring is compressed and deformed. When the negative pressure system is closed, the spring returns to its original position, so that the tray cover pops up and lifts the tray in the forming cavity, which is conducive to demolding.

[0014] (2) In this design, the upper surface of the tray is set with a smooth structure and the upper surface of the tray is coated with polytetrafluoroethylene coating, which reduces the friction between the molded tray and the tray at the contact point, thereby facilitating the demolding of the tray. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view schematic diagram of the vacuum forming mold of this utility model; Figure 3 This is a cross-sectional view of part AA of the vacuum forming mold of this utility model; Figure 4 This is a schematic diagram of the support structure of this utility model; Figure 5 This is a schematic diagram of the movable seat structure of this utility model.

[0016] Explanation of the labels in the diagram: 1. Vacuum forming mold; 2. Negative pressure suction hole; 3. Vacuum forming head; 4. Connecting cavity; 5. Storage slot; 6. Guide slot; 7. Guide rod; 8. Movable seat; 9. Guide block; 10. Support arm; 11. Shaft head; 12. Assembly slot; 13. Support cover; 14. Connecting shaft; 15. Connecting hole; 16. Spring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] Example: Please see Figure 1-5 A negative pressure adsorption opening device for a glutinous rice ball tray includes a blister mold 1, negative pressure suction holes 2 arranged in an array at the bottom of the inner cavity of the blister mold 1, a blister head 3 installed at the bottom of the blister mold 1, and a connecting cavity 4 disposed on the blister mold 1 and connected to the negative pressure suction holes 2 and the blister head 3. The bottom of the inner cavity of the blister mold 1 is provided with two symmetrical storage grooves 5, and the bottom wall of the storage groove 5 is provided with a guide groove 6. A guide rod 7 is fixedly connected above the storage slot 5 via a bracket. A movable seat 8 is slidably connected to the guide rod 7. A guide block 9 is integrally formed at the bottom of the movable seat 8 and is slidably connected to the guide slot 6. A support arm 10 is hinged to the top of the movable seat 8. A shaft head 11 is installed at the end of the support arm 10 away from the movable seat 8. The inner wall of the vacuum forming mold 1 has an assembly groove 12 at its root. A support cover 13, which is hinged to the assembly groove 12 and forms an embedded structure with the storage groove 5, is provided on the side wall of the support cover 13. A connection hole 15 is provided on the side wall of the support cover 13 and is rotatably connected to the shaft head 11. A spring 16 is fitted onto the end of the guide rod 7 that is away from the inner wall of the vacuum forming mold 1; It should be noted that, in use, the negative pressure adsorption opening device of the glutinous rice ball tray utilizes an external negative pressure system connected to the blister head 3. The heated plastic material used for tray processing is then placed at the top of the blister mold 1, and the frame is pressed together. The air in the forming cavity of the blister mold 1 is extracted through the negative pressure suction hole 2 and the connecting cavity 4. Under the action of negative pressure, the tray is formed, and the tray cover 13 is rotated and pressed into the inner side of the storage groove 5 in conjunction with the assembly groove 12. At the same time, the support arm 10 hinged to the movable seat 8 is rotated through the shaft head 11 and the connecting hole 15, which in turn pushes the movable seat 8 to move in conjunction with the guide rod 7. The guide block 9 is used to guide the guide in conjunction with the guide groove 6, and the spring 16 is compressed and deformed. When the negative pressure system is turned off, the spring 16 returns to its original position, causing the tray cover 13 to spring up and lift the tray in the forming cavity, which is conducive to demolding.

[0019] like Figure 3 As shown, the end of the storage slot 5 away from the inner wall of the blister mold 1 has a chamfered edge; It should be noted that interference between the support cover 13 and the storage slot 5 should be avoided during the swinging process to ensure that the support cover 13 can move normally.

[0020] like Figure 3 , Figure 4 , Figure 5 As shown, a connecting shaft 14 is installed at the end of the support cover 13, and the connecting shaft 14 is connected to the inner wall of the assembly groove 12 through a bearing. A bearing with an inner ring that is interference-fitted to the shaft head 11 is installed on the inner side of the connecting hole 15. It should be noted that the accuracy of the support 13 during the swing process is ensured, and the resistance of the support 13 during the swing process is reduced.

[0021] like Figure 3 As shown, one end of the spring 16 abuts against the bracket connecting the guide rod 7, and the other end of the spring 16 is connected to the movable seat 8; It should be noted that the elastic force of the spring 16 enables the cover 13 to open and close.

[0022] like Figure 3 As shown, the upper surface of the cover 13 has a smooth surface structure, and the upper surface of the cover 13 is coated with a polytetrafluoroethylene coating. It should be noted that the friction between the molded tray and the cover 13 at the contact point is reduced, which facilitates the demolding of the tray.

[0023] like Figure 1 As shown, the bottom of the vacuum forming mold 1 has a hemispherical forming cavity that is connected to the negative pressure suction hole 2; It should be noted that the tray is designed to form a cavity for holding round glutinous rice balls.

[0024] In use: By using the vacuum forming head 3 connected to an external negative pressure system, the heated plastic material for tray processing is placed at the top of the vacuum forming mold 1 and pressed together with the frame. The air in the forming cavity of the vacuum forming mold 1 is extracted through the negative pressure suction hole 2 and the connecting cavity 4. Under the action of negative pressure, the tray is formed. At the same time, the tray cover 13 is rotated and pressed into the inner side of the storage groove 5 in conjunction with the assembly groove 12. Meanwhile, the support arm 10 hinged to the movable seat 8 is rotated through the shaft head 11 and the connecting hole 15, which in turn pushes the movable seat 8 to move in conjunction with the guide rod 7. At the same time, the guide block 9 is used to guide the guide in conjunction with the guide groove 6, and the spring 16 is compressed and deformed. When the negative pressure system is turned off, the spring 16 returns to its original position, thereby causing the tray cover 13 to spring up and lift the tray in the forming cavity.

[0025] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A negative pressure adsorption opening device for a glutinous rice ball tray, comprising a blister mold (1), negative pressure suction holes (2) arranged in an array at the bottom of the inner cavity of the blister mold (1), a blister head (3) installed at the bottom of the blister mold (1), and a communicating cavity (4) disposed on the blister mold (1) and connected in communication with the negative pressure suction holes (2) and the blister head (3), characterized in that: The bottom of the inner cavity of the vacuum forming mold (1) is provided with two symmetrical storage slots (5), and the bottom wall of the storage slots (5) is provided with guide slots (6). A guide rod (7) is fixedly connected above the storage slot (5) by a bracket. A movable seat (8) is slidably connected to the guide rod (7). A guide block (9) is integrally formed at the bottom of the movable seat (8) and slidably connected to the guide slot (6). A support arm (10) is hinged to the top of the movable seat (8). A shaft head (11) is installed at the end of the support arm (10) away from the movable seat (8). The inner wall root of the vacuum forming mold (1) is provided with an assembly groove (12), and a support cover (13) that forms an embedded structure with the storage groove (5) is hinged on the assembly groove (12). The side wall of the support cover (13) is provided with a connection hole (15) that is rotatably connected to the shaft head (11). A spring (16) is fitted on one end of the guide rod (7) away from the inner wall of the blister mold (1).

2. The negative pressure adsorption opening device for a glutinous rice ball tray according to claim 1, characterized in that: The storage groove (5) has a chamfered end away from the inner wall of the blister mold (1).

3. The negative pressure adsorption opening device for a glutinous rice ball tray according to claim 1, characterized in that: The end of the support (13) is equipped with a connecting shaft (14), and the connecting shaft (14) is connected to the inner wall of the assembly groove (12) through a bearing.

4. The negative pressure adsorption opening device for a glutinous rice ball tray according to claim 1, characterized in that: A bearing with an inner ring that is interference-fitted to the shaft head (11) is installed on the inner side of the connecting hole (15).

5. The negative pressure adsorption opening device for a glutinous rice ball tray according to claim 1, characterized in that: One end of the spring (16) abuts against the bracket connected to the guide rod (7), and the other end of the spring (16) is connected to the movable seat (8).

6. The negative pressure adsorption opening device for a glutinous rice ball tray according to claim 1, characterized in that: The upper surface of the cover (13) is provided with a smooth structure, and the upper surface of the cover (13) is coated with a polytetrafluoroethylene coating.

7. The negative pressure adsorption opening device for a glutinous rice ball tray according to claim 1, characterized in that: The bottom of the vacuum forming mold (1) is provided with a hemispherical cavity that is connected to the negative pressure suction hole (2).

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