Foaming mold for producing EVA (Ethylene Vinyl Acetate) high-barrel rain shoes
By designing foam molds for EVA high-cylinder rain boot production, the problem of lack of bubble generation and fastening structure during mold making is solved, and an efficient mold closing and demolding process is achieved, ensuring the quality of the finished product and reducing costs.
Patent Information
- Application Number
- CN202420854916.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-24
AI Technical Summary
When using foam molds to mold EVA high-cylinder rain boots, bubbles will occur, affecting the quality and increasing subsequent costs. At the same time, the lack of a simple auxiliary fastening structure will affect the quality of the finished product.
A foaming mold for the production of EVA high-cylinder rain boots is designed, including a base, a foaming mold body, a vacuum pump, a vacuum pipe and an anti-blocking assembly. The linear motor drives the foam mold body to move for mold clamping and demolding. The vacuum pump prevents bubble formation. The servo motor drives the anti-blocking component to clean the vacuum tube, and improves the mold making accuracy through the positioning component and the block structure.
Effectively prevent bubbles from appearing in finished products, ensure the accuracy of finished products, simplify the mold clamping and demolding process, reduce subsequent costs, and prevent blockage by cleaning the vacuum tube to ensure normal vacuum treatment.
Smart Images
Figure CN222451120U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of EVA high-tube rain boots production, in particular to a foaming mold for producing EVA high-tube rain boots. Background Art
[0002] The mold for foaming molding is a plastic foaming mold. The foaming resin is directly filled into the mold, which is heated and melted to form a gas-liquid saturated solution. Through nucleation, a large number of tiny bubble nuclei are formed. The bubble nuclei grow to make foam plastic parts. There are three commonly used foaming methods: physical foaming, chemical foaming and mechanical foaming.
[0003] When using a foaming mold to mold EVA high-top rain boots, bubbles will be generated, which will affect the quality and increase the subsequent costs. In addition, when closing the mold, the lack of a simpler auxiliary fastening structure will also affect the quality of the finished product.
[0004] Therefore, it is necessary to propose a foaming mold for producing EVA high-top rain boots to solve the above problems. Utility Model Content
[0005] The main purpose of the utility model is to provide a foaming mold for producing EVA high-top rain boots, which can effectively solve the problems in the background technology.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] A foaming mold for producing EVA high-top rain boots, comprising a base, wherein the left and right sides of the top of the base are symmetrically and flexibly connected with a foaming mold body, the top of the left foaming mold body is fixedly connected with a vacuum pump, the bottom of the vacuum pump is fixedly connected with a vacuum pumping tube, and an anti-blocking component is flexibly connected in the inner cavity of the vacuum pumping tube;
[0008] The front and back sides of the right side of the foaming mold body on the left side are provided with positioning grooves, the front and back sides of the left side of the foaming mold body on the right side are symmetrically fixedly connected with positioning components, and the front and back sides of the positioning components are symmetrically and movably connected with clamping blocks.
[0009] Preferably, an injection molding tube is fixedly connected to the back of the base, a rain boot mold is installed on the front of the base, mold grooves are symmetrically opened in the middle of opposite sides of the two foaming mold bodies, a linear motor is installed on the top of the base, and the bottoms of the two foaming mold bodies are electrically connected to the linear motor.
[0010] Preferably, the vacuum tube is in communication with the inner cavity of the mold groove, and movable grooves are symmetrically opened in the middle of the front and back sides of the inner cavity of the vacuum tube, and blocking belts are symmetrically fixedly connected to the top and bottom of the inner cavity of the movable groove, and a movable block is fixedly connected to the other end of the blocking belt, and the movable block is fixedly connected to the outer wall of the anti-blocking component.
[0011] Preferably, the movable block is movably connected in the inner cavity of the mold groove, a screw is rotated in the inner cavity of the movable groove on the front side, a guide rod is fixedly connected in the inner cavity of the movable groove on the back side, the movable block is threadedly connected to the outer wall of the screw rod on the front side, and the movable block is sleeved on the outer wall of the guide rod on the back side, a servo motor is fixedly connected to the bottom of the inner cavity of the vacuum tube, and the top of the servo motor is fixedly connected to the bottom of the screw rod through a rotating shaft.
[0012] Preferably, card slots are symmetrically opened in the middle of the front and back sides of the inner cavity of the positioning groove, the sizes of the positioning groove and the positioning component are matched, the sizes of the card slot and the card block are matched, both sides of the card block are inclined, and limiting slots are symmetrically opened in the middle of the front and back sides of the positioning component.
[0013] Preferably, the limiting blocks are symmetrically fixedly connected on one side opposite to the two blocking blocks, the size of the limiting blocks is larger than the limiting groove, the limiting blocks are movably connected in the inner cavity of the positioning component, the front and back sides of the inner cavity of the positioning component are symmetrically fixedly connected with fixing columns, the limiting blocks are sleeved on the outer wall of the fixing columns, the outer wall of the fixing columns is wrapped with a spring, one end of the spring is connected to the limiting block, and the other end of the spring is fixedly connected to the inner cavity of the positioning component.
[0014] Beneficial Effects
[0015] Compared with the prior art, the utility model has the following beneficial effects:
[0016] 1. The foaming mold for the production of EVA high-top rain boots can drive the two foaming mold bodies to move by starting the set linear motor, so that the mold can be closed and demolded. By starting the set vacuum pump, the inner cavity of the mold groove can be vacuumed to prevent bubbles from appearing in the finished product, which can effectively ensure the accuracy of the finished product.
[0017] 2. The foaming mold for the production of EVA high-top rain boots can drive the screw to rotate by starting the servo motor, and the movable block on the front side can be threadedly connected with it, so as to drive the anti-blocking component to move up and down in the inner cavity of the vacuum tube. After the molding is completed, the inner cavity of the vacuum tube can be cleaned to prevent the vacuum tube from being blocked. This structure can ensure that the vacuum tube can be vacuumed normally.
[0018] 3. The foaming mold for the production of EVA high-top rain boots can be inserted into the inner cavity of the positioning groove through the positioning component when the mold is closed, and can be inserted into the inner cavity of the groove through the provided clamping block. After the clamping block is inserted into the inner cavity of the groove, it can be pushed into the inner cavity of the groove through the provided spring, thereby ensuring the tightness of the connection and further improving the molding accuracy. The two sides of the clamping block are inclined, which is also convenient for subsequent demolding. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of the front side of the utility model;
[0020] Figure 2 It is a structural schematic diagram of the left side foaming mold body of the utility model;
[0021] Figure 3 This utility model Figure 2 The enlarged view of point A in the middle;
[0022] Figure 4 It is a structural schematic diagram of the vacuum tube of the utility model.
[0023] In the figure: 1. base; 2. injection molding tube; 3. foaming mold body; 4. vacuum pump; 5. vacuum tube; 6. anti-blocking component; 7. movable block; 8. guide rod; 9. screw rod; 10. servo motor; 11. belt; 12. linear motor; 13. rain boot mold; 14. positioning groove; 15. clamping slot; 16. positioning component; 17. limit groove; 18. limit block; 19. clamping block; 20. roller; 21. fixed column; 22. spring. DETAILED DESCRIPTION
[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0025] like Figure 1 , Figure 2 , Figure 4As shown, a foaming mold for producing EVA high-top rain boots includes a base 1, and the left and right sides of the top of the base 1 are symmetrically and movably connected with a foaming mold body 3, the top of the left foaming mold body 3 is fixedly connected with a vacuum pump 4, the bottom of the vacuum pump 4 is fixedly connected with a vacuum pump tube 5, and the inner cavity of the vacuum pump tube 5 is movably connected with an anti-blocking component 6, the back of the base 1 is fixedly connected with an injection tube 2, and a rain boot mold 13 is installed on the front of the base 1, and mold grooves are symmetrically opened in the middle of the two opposite sides of the foaming mold bodies 3, a linear motor 12 is installed on the top of the base 1, and the bottoms of the two foaming mold bodies 3 are fixedly connected with an injection tube 2. All parts are electrically connected to the linear motor 12, the vacuum tube 5 is communicated with the inner cavity of the mold groove, and movable grooves are symmetrically opened in the middle of the front and back sides of the inner cavity of the vacuum tube 5, and the top and bottom of the inner cavity of the movable groove are symmetrically fixedly connected with a blocking belt 11, and the other end of the blocking belt 11 is fixedly connected with a movable block 7, and the movable block 7 is fixedly connected to the outer wall of the anti-blocking component 6, and the movable block 7 is movably connected in the inner cavity of the mold groove, a screw rod 9 is rotated in the inner cavity of the front movable groove, and a guide rod 8 is fixedly connected in the inner cavity of the back movable groove, the front movable block 7 is threadedly connected to the outer wall of the screw rod 9, and the back movable block 7 is sleeved on the outer wall of the guide rod 8.
[0026] By starting the set linear motor 12, the two foaming mold bodies 3 can be driven to move, so that the mold closing and demolding processes can be carried out. By starting the set vacuum pump 4, the inner cavity of the mold groove can be vacuumed, so as to prevent bubbles from appearing in the finished product and effectively ensure the accuracy of the finished product. By starting the set servo motor 10, the screw rod 9 can be driven to rotate, and the front movable block 7 can be threadedly connected with it, so as to drive the anti-blocking component 6 to move up and down in the inner cavity of the vacuum tube 5. After the molding is completed, the inner cavity of the vacuum tube 5 can be cleaned, so as to prevent the vacuum tube 5 from being blocked. This structure can ensure that the vacuum tube 5 can be vacuumed normally.
[0027] like Figure 1-Figure 3As shown, a foaming mold for producing EVA high-top rain boots has positioning grooves 14 on the front and back of the right side of the foaming mold body 3 on the left side, and positioning components 16 are symmetrically fixedly connected on the front and back of the left side of the foaming mold body 3 on the right side. The front and back of the positioning component 16 are symmetrically and movably connected with a clamping block 19. A clamping groove 15 is symmetrically opened in the middle of the front and back of the inner cavity of the positioning groove 14. The sizes of the positioning groove 14 and the positioning component 16 are adapted, and the sizes of the clamping groove 15 and the clamping block 19 are adapted. Both sides of the clamping block 19 are inclined, and the positioning component 16 is positive. A limiting groove 17 is symmetrically provided in the middle of the front and back surfaces, and a limiting block 18 is symmetrically fixedly connected to the opposite side of the two clamping blocks 19. The size of the limiting block 18 is larger than the limiting groove 17. The limiting block 18 is movably connected in the inner cavity of the positioning component 16. Fixed columns 21 are symmetrically fixedly connected around the front and back surfaces of the inner cavity of the positioning component 16. The limiting block 18 is sleeved on the outer wall of the fixed column 21. A spring 22 is wound around the outer wall of the fixed column 21. One end of the spring 22 is connected to the limiting block 18, and the other end of the spring 22 is fixedly connected to the inner cavity of the positioning component 16.
[0028] Through the provided positioning component 16, when the mold is closed, it can be inserted into the inner cavity of the positioning groove 14, and through the provided clamping block 19, it can be inserted into the inner cavity of the clamping groove 15. Through the provided spring 22, after the clamping block 19 is inserted into the inner cavity of the clamping groove 15, it can be pushed toward the inner cavity of the clamping groove 15, thereby ensuring the tightness of the connection and further improving the molding accuracy. The two sides of the clamping block 19 are inclined surfaces, which is also convenient for subsequent demolding.
[0029] It should be noted that the utility model is a foaming mold for the production of EVA high-top rain boots. When in use, the vacuum tube 5 is started, and the mold groove is vacuumed through the vacuum tube 5. After the vacuuming is completed, the mold material is injected into the inner cavity of the mold groove through the injection tube 2, and the rain boot mold 13 can be used to carry out the molding work;
[0030] After the molding is completed, the linear motor 12 is started to separate the two foaming mold bodies 3, and the finished product can be taken out from the rain boot mold 13, and the servo motor 10 is started to drive the screw rod 9 to rotate, so that the front movable block 7 can be threadedly connected with the screw rod 9, and the anti-blocking component 6 can be driven to move up and down in the inner cavity of the vacuum tube 5. At this time, the inner wall of the vacuum tube 5 can be cleaned to prevent the material from blocking the vacuum tube 5;
[0031] When the foaming mold body 3 is being formed and the mold is being closed, the positioning component 16 will drive the block 19 to move. After the positioning component 16 drives the block 19 to contact the outer wall of the positioning groove 14, the block 19 will be squeezed through its inclined surface, thereby shrinking into the inner cavity of the positioning component 16. When the positioning component 16 completely enters the inner cavity of the positioning groove 14, the spring 22 will bounce the block 19 to the outside through the limit block 18, so that the block 19 can be inserted into the inner cavity of the groove 15.
[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A foaming mold for producing EVA high-top rain boots, comprising a base (1), characterized in that: The left and right sides of the top of the base (1) are symmetrically and movably connected with a foaming mold body (3); the top of the foaming mold body (3) on the left side is fixedly connected with a vacuum pump (4); the bottom of the vacuum pump (4) is fixedly connected with a vacuum pumping tube (5); and an anti-blocking component (6) is movably connected in the inner cavity of the vacuum pumping tube (5); Positioning grooves (14) are provided on the front and back sides of the right side of the foaming mold body (3) on the left side, and positioning components (16) are symmetrically fixedly connected to the front and back sides of the left side of the foaming mold body (3) on the right side, and clamping blocks (19) are symmetrically movably connected to the front and back sides of the positioning components (16).
2. The foaming mold for producing EVA high-top rain boots according to claim 1, characterized in that: The back of the base (1) is fixedly connected to an injection molding tube (2), the front of the base (1) is equipped with a rain boot mold (13), mold grooves are symmetrically opened in the middle of the two opposite sides of the foaming mold bodies (3), a linear motor (12) is installed on the top of the base (1), and the bottoms of the two foaming mold bodies (3) are electrically connected to the linear motor (12).
3. The foaming mold for producing EVA high-top rain boots according to claim 1, characterized in that: The vacuum tube (5) is in communication with the inner cavity of the mold groove, and movable grooves are symmetrically opened in the middle of the front and back sides of the inner cavity of the vacuum tube (5), and blocking belts (11) are symmetrically fixedly connected to the top and bottom of the inner cavity of the movable groove, and the other end of the blocking belt (11) is fixedly connected to a movable block (7), and the movable block (7) is fixedly connected to the outer wall of the anti-blocking component (6).
4. The foaming mold for producing EVA high-top rain boots according to claim 3, characterized in that: The movable block (7) is movably connected in the inner cavity of the mold groove, a screw rod (9) is rotatable in the inner cavity of the movable groove on the front side, and a guide rod (8) is fixedly connected in the inner cavity of the movable groove on the back side. The movable block (7) is threadedly connected to the outer wall of the screw rod (9) on the front side, and the movable block (7) is sleeved on the outer wall of the guide rod (8) on the back side. A servo motor (10) is fixedly connected to the bottom of the inner cavity of the vacuum tube (5), and the top of the servo motor (10) is fixedly connected to the bottom of the screw rod (9) via a rotating shaft.
5. The foaming mold for producing EVA high-top rain boots according to claim 1, characterized in that: A clamping groove (15) is symmetrically provided in the middle of the front and back sides of the inner cavity of the positioning groove (14); the sizes of the positioning groove (14) and the positioning component (16) are matched; the sizes of the clamping groove (15) and the clamping block (19) are matched; both sides of the clamping block (19) are inclined; and a limiting groove (17) is symmetrically provided in the middle of the front and back sides of the positioning component (16).
6. The foaming mold for producing EVA high-top rain boots according to claim 5, characterized in that: A limiting block (18) is symmetrically fixedly connected to one side opposite to the two clamping blocks (19); the size of the limiting block (18) is larger than the limiting groove (17); the limiting block (18) is movably connected in the inner cavity of the positioning component (16); the inner cavity of the positioning component (16) is symmetrically fixedly connected with a fixing column (21) on the front and back sides thereof; the limiting block (18) is sleeved on the outer wall of the fixing column (21); the outer wall of the fixing column (21) is wound with a spring (22); one end of the spring (22) is connected to the limiting block (18); and the other end of the spring (22) is fixedly connected to the inner cavity of the positioning component (16).