Blowing mold for glass kettle of excavator
By designing the sliding engagement structure between the sliding core and the buckle mold, the deformation and breakage problems of the inverted pot body during the demoulding process are solved, efficient inverted demoulding is achieved, and the product production qualification rate is improved.
Patent Information
- Application Number
- CN202422640479.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-31
AI Technical Summary
In the prior art, the pot body with undercuts is easily deformed or damaged during the demoulding process, especially the undercuts with a depth of more than 1 cm, which affects the production qualification rate of the product.
A blow molding mold for an excavator glass kettle was designed. The upper and lower molds were combined to form a kettle-shaped cavity. A buckle groove and a buckle mold were set in the lower mold. The sliding core was slidably engaged with the buckle mold. The sliding core was driven by a cylinder to drive the buckle mold to move horizontally, realizing the translational demoulding of the inverted buckle.
It effectively avoids the scratching and damage of the inverted pot body during demoulding, improves the yield rate of the blow-molded pot body, and improves the convenience of demoulding.
Smart Images
Figure CN223354910U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kettle moulds, in particular to a blow mould for an excavator glass kettle. Background Art
[0002] Blow molding is a commonly used method for making kettle bodies. Generally, thermoplastic is placed in the space formed by the mold, and blow molding is used to make the thermoplastic expand and bulge, so that the thermoplastic can fit the space formed by the mold and form the kettle body. However, conventional kettle bodies generally do not have undercuts. When blow molding special kettle bodies, undercuts will be set on the kettle body. When the kettle body is demoulded, the top block is used for forced demoulding. The undercuts on the kettle body may be deformed during demoulding, and may also cause damage during the demoulding process. When facing demoulding with an undercut greater than 1 cm in depth, forced demoulding will cause damage to the kettle body, affecting the production qualification rate of the product. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a blow molding mold for an excavator glass kettle to solve the problem that a kettle body with an undercut is difficult to demould.
[0004] Based on the technical problems existing in the background technology, the utility model proposes a blow molding mold for an excavator glass kettle, comprising an upper mold and a lower mold that are molded together, the upper mold and the lower mold are molded together to form a kettle-shaped cavity, the lower mold is located in the cavity and is provided with a buckle groove, the side of the buckle groove is provided with a buckle mold, an inverted groove is formed between the buckle mold and the buckle groove, the side of the buckle mold is provided with a sliding core that is slidably engaged with the buckle mold, and the sliding core slides in the direction away from the cavity to drive the buckle mold to move horizontally in the direction away from the buckle groove.
[0005] Preferably, the buckle mold and the sliding core both pass through the lower mold into the cavity.
[0006] Preferably, a cylinder is installed on a side of the lower die away from the cavity, and an end of the cylinder is connected to the sliding core.
[0007] Preferably, the fitting surface between the sliding core and the buckle mold is an inclined surface, and the area of the end of the sliding core close to the cavity is smaller than the area of the end of the sliding core away from the cavity.
[0008] Preferably, a convex body is provided on one side of the sliding core that fits the buckle mold, and a groove that engages with the convex body is provided on one side of the buckle mold that fits the sliding core, and the cross section of the convex body is an inverted trapezoid.
[0009] Preferably, a drilling mechanism is installed on the side of the lower mold, and the drilling mechanism passes through the lower mold and extends into the cavity.
[0010] Preferably, a tube cavity communicating with the liquid is provided in the upper mold and the lower mold, and valve heads are installed at both ends of the tube cavity.
[0011] Compared with the existing technology, the excavator glass kettle blow molding mold proposed by the present invention adopts the above technical solution and achieves the following technical effects:
[0012] The utility model can prevent the blow-molded kettle body with undercut from being scratched and damaged, and can improve the yield rate of the blow-molded kettle body. When dealing with a blow-molded kettle body with a deeper undercut, the utility model can facilitate the demoulding of the blow-molded kettle body by changing the structure of the undercut area of the mold, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the pot body and mold of the present utility model;
[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the mold of the present utility model.
[0016] In the figure: 1. Upper die; 2. Lower die; 100. Cavity; 11. Buckle groove; 3. Buckle die; 200. Inverted buckle groove; 4. Sliding core; 5. Cylinder; 41. Protrusion; 31. Groove; 6. Drilling mechanism; 300. Tube cavity; 301. Valve head. DETAILED DESCRIPTION
[0017] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0018] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0019] Example
[0020] Please refer to Figure 1The utility model proposes a blow molding mold for an excavator glass kettle, comprising an upper mold 1 and a lower mold 2 that are molded together. The upper mold 1 and the lower mold 2 are molded together to form a kettle-shaped cavity 100. A through hole is provided in the middle of the lower mold 2. A buckle groove 11 is provided around the hole and located in the cavity 100. A buckle mold 3 is provided in the hole. The buckle mold 3 can form a complete undercut groove 20011 between the buckle groove 11. When blow molding is performed, an undercut can be formed in the undercut groove 20011. In this application, there are multiple buckle grooves 11 and buckle molds 3, and each buckle groove 11 and the buckle mold 3 match each other. A sliding core 4 is provided on the side of the buckle mold 3, and the sliding core 4 is inserted in the middle of all the buckle molds 3. The sliding core 4 and the buckle mold 3 are slidably engaged with each other, and the sliding core 4 and the buckle mold 3 can seal the hole. At the same time, when the sliding core 4 slides in the direction away from the cavity 100, the buckle mold 3 can be translated in the direction away from the buckle groove 11. In this application, the buckle mold 3 is an L-shaped shape, and a transverse groove is provided on the lower mold 2. The bending part of the buckle mold 3 is located in the transverse groove, which can limit the longitudinal sliding of the buckle mold 3. When the buckle mold 3 is translated, it will be out of the inverted area, and the blow-molded pot body can be taken out from the lower mold 2 to avoid scratches.
[0021] In a further embodiment, two slide rails may be provided on the lower mold 2 , and the clip mold 3 may be mounted on the slide rails to facilitate sliding of the clip mold 3 .
[0022] In a further embodiment, the buckle mold 3 and the sliding core 4 both penetrate the lower mold 2 into the cavity 100; the buckle mold 3 and the sliding core 4 are both part of the lower mold 2, and the lower mold 2 has a hole that allows the cavity 100 to connect to the outside, and the buckle mold 3 and the sliding core 4 can seal the hole to form a closed cavity 100.
[0023] In a further embodiment, reference is made to Figure 1 A cylinder 5 is installed on the side of the lower mold 2 away from the cavity 100, and the end of the cylinder 5 is connected to the sliding core 4. The cylinder 5 runs longitudinally and in the direction of relative sliding between the upper mold 1 and the lower mold 2. The cylinder 5 is used to drive the sliding core 4 to operate.
[0024] In a further embodiment, reference is made to Figure 1 , the fitting surface between the sliding core 4 and the buckle mold 3 is an inclined surface, and the area of the end of the sliding core 4 close to the cavity 100 is smaller than the area of the end of the sliding core 4 away from the cavity 100; when the sliding core 4 moves downward, due to the setting of the inclined surface between the sliding core 4 and the buckle mold 3, the sliding core 4 will have forces in two directions on the buckle mold 3, namely horizontal and longitudinal forces. Since the longitudinal movement of the buckle mold 3 is restricted, the buckle mold 3 can only move horizontally, and multiple buckle molds 3 will move closer to each other and away from the buckle groove 11, so that the undercut formed in the buckle groove 11 can move up and separate from the lower mold 2.
[0025] In a further embodiment, reference is made to Figure 1A convex body 41 is provided on one side of the sliding core 4 that fits the buckle mold 3, and a groove 31 that engages with the convex body 41 is provided on one side of the buckle mold 3 that fits the sliding core 4. The cross-section of the convex body 41 is an inverted trapezoid. In this application, the convex body 41 and the concave body can only engage through sliding, and the movement of the sliding core 4 can drive the buckle mold 3 to move horizontally through the engagement of the convex body 41 and the groove 31.
[0026] In a further embodiment, reference is made to Figure 1 A drilling mechanism 6 is installed on the side of the lower mold 2. The drilling mechanism 6 passes through the lower mold 2 and extends into the cavity 100. The drilling mechanism 6 is used to drill holes in the pot body.
[0027] In a further embodiment, reference is made to Figure 1 A tube cavity 300 for connecting liquid is provided in the upper mold 1 and the lower mold 2. Valve heads 301 are installed at both ends of the tube cavity 300. The tube cavity 300 is filled with cooling liquid. When the blow molding is completed, the temperature of the lower mold 2 can be quickly reduced, and the lower mold 2 can then cool the pot body.
[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A blow molding mold for an excavator glass kettle, characterized in that: The invention comprises an upper die (1) and a lower die (2) which are molded together to form a pot-shaped cavity (100); the upper die (1) and the lower die (2) are molded together to form a pot-shaped cavity (100); the lower die (2) is provided with a buckle groove (11) in the cavity (100); a buckle die (3) is provided on the side of the buckle groove (11); an undercut groove (200) is formed between the buckle die (3) and the buckle groove (11); a sliding core (4) which is slidably engaged with the buckle die (3) is provided on the side of the buckle die (3); the sliding core (4) slides in a direction away from the cavity (100) to drive the buckle die (3) to move in a direction away from the buckle groove (11).
2. The excavator glass kettle blow molding mold according to claim 1, characterized in that: The buckle mold (3) and the sliding core (4) both penetrate the lower mold (2) into the cavity (100).
3. The excavator glass kettle blow molding mold according to claim 1, characterized in that: A cylinder (5) is installed on the side of the lower mold (2) away from the cavity (100), and the end of the cylinder (5) is connected to the sliding core (4).
4. The excavator glass kettle blow molding mold according to claim 1, characterized in that: The fitting surface between the sliding core (4) and the buckle mold (3) is an inclined surface, and the area of the end of the sliding core (4) close to the cavity (100) is smaller than the area of the end of the sliding core (4) away from the cavity (100).
5. The excavator glass kettle blow molding mold according to claim 1, characterized in that: A convex body (41) is provided on one side of the sliding core (4) that fits the buckle mold (3), and a groove (31) that engages with the convex body (41) is provided on one side of the buckle mold (3) that fits the sliding core (4). The cross section of the convex body (41) is an inverted trapezoid.
6. The excavator glass kettle blow molding mold according to claim 1, characterized in that: A drilling mechanism (6) is installed on the side of the lower mold (2), and the drilling mechanism (6) passes through the lower mold (2) and extends into the cavity (100).
7. The excavator glass kettle blow molding mold according to claim 1, characterized in that: A tube cavity (300) communicating with liquid is provided in the upper mold (1) and the lower mold (2), and valve heads (301) are installed at both ends of the tube cavity (300).