A hot shrink packaging tool for ring salt core products

Abstract

The utility model discloses a kind of ring salt core product heat shrinkage packaging tool, including base, supporting assembly and heat shrinkage component, supporting assembly includes positioning base, the bottom of positioning base is equipped with the rotating joint of base, positioning base is fixedly connected with base axle, base axle upper end is threadedly connected with adjusting knob, base axle bottom is fixedly connected with fixed shaft sleeve, several support rods are hinged on fixed shaft sleeve, base axle is equipped with the movable shaft sleeve that can slide along its axial direction, several groups of connecting rods arranged in parallel are hinged on movable shaft sleeve;Positioning base is equipped with several radially arranged sliding grooves, supporting plate is slidably connected in sliding groove;Heat shrinkage component includes hot air pipe.The utility model realizes the positioning of salt core product and heat shrinkage film by positioning base, guarantees the quality and consistency of ring salt core product heat shrinkage packaging, in addition, the position of supporting plate can be flexibly adjusted according to the inner diameter of ring salt core product by the supporting assembly of the utility model, and the flexibility of tool is enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of salt core product packaging, and specifically relates to a heat shrink packaging tool for ring-shaped salt core products. Background Technology

[0002] In the foundry industry, ring-shaped salt cores are key auxiliary components for ensuring the precision and quality of castings. After production and processing, effective packaging is essential to achieve two core objectives: First, to provide comprehensive protection for stacked ring-shaped salt cores, preventing breakage due to external impacts or performance degradation due to humidity during subsequent transportation and storage, thus ensuring the performance and integrity of the salt cores; Second, to optimize storage space utilization through standardized packaging, facilitating the classification, stacking, and counting of salt core stacks, while also providing convenience for the retrieval and transfer of salt cores in subsequent production processes, ensuring the smooth operation of the production flow.

[0003] Currently, the industry commonly uses a manual, simple mold-assisted operation mode for heat-shrink packaging of stacked ring-shaped salt cores. The specific process involves individually fitting the ring-shaped salt cores onto the outside of the mold shaft, using the mold shaft for initial positioning of the salt core stack, and then manually covering them with heat-shrink film and performing the heat-shrink treatment. However, this packaging method has revealed many problems in practical application that restrict production efficiency and cost control, making it difficult to meet the needs of modern casting production.

[0004] Firstly, the low positioning accuracy and poor wrapping efficiency of heat shrink film are the core pain points that urgently need to be addressed. Because the annular salt core itself has a hollow ring structure, the overall center of gravity is prone to shift when stacked. Current packaging processes rely on repeated manual adjustments to the relative position of the heat shrink film and the salt core stack to correct the positioning deviation caused by this shift. However, limited by the precision and stability of manual operation, it is not only difficult to achieve rapid and complete wrapping of the salt core stack with heat shrink film, but also often results in obvious wrinkles on the film surface after heat shrinking due to inaccurate positioning, or even parts of the salt core area not being covered by the heat shrink film, creating protective gaps.

[0005] Secondly, the insufficient adaptability and poor versatility of mold shafts lead to a significant increase in production costs. Existing mold shafts used in heat shrink packaging are mostly designed with fixed diameters, only compatible with ring-shaped salt cores of a single inner diameter. When the inner diameter of the ring-shaped salt core changes, the original mold shafts, unable to adjust their diameter, cannot effectively position the new salt core stack. In actual production, foundry companies often need to switch between producing ring-shaped salt cores of various inner diameters according to different casting requirements. This necessitates replacing the entire set of mold shafts corresponding to the new salt core inner diameter. Frequent mold shaft replacements not only cause production interruptions and affect production continuity but also require additional investment in purchasing or customizing mold shafts of different sizes, significantly increasing mold procurement and manufacturing costs, and also increasing the complexity of mold inventory management. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a heat shrink packaging tool for ring-shaped salt core products, so as to solve the problems of existing ring-shaped salt core heat shrink packaging tools being unable to position the heat shrink film and having poor flexibility.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A heat-shrink packaging tooling for ring-shaped salt core products, comprising: The base is used to mount the support components and heat shrink components; A support assembly, mounted on a base, is used to support the ring-shaped salt core product. It includes a positioning base with a rotating shaft at its bottom that is rotatably connected to the base. A base shaft is fixedly connected to the positioning base, with an adjustment knob threaded onto its upper end. A fixed bushing is fixedly connected to the bottom of the base shaft, and several support rods are hinged to the fixed bushing. A movable bushing, which can slide along the base shaft's axial direction, is provided on the base shaft. A spring is provided between the fixed bushing and the movable bushing. Several sets of parallel connecting rods are hinged to the movable bushing. One end of each support rod is hinged to the middle of a connecting rod near the positioning base. The positioning base has several radially arranged grooves, and a support plate is slidably connected within each groove. One end of each connecting rod is hinged to the support plate, which is supported on the inner wall of the ring-shaped salt core product. A heat shrink assembly for heat shrinking stacked ring-shaped salt core products on a support assembly, including a hot air duct, wherein the side of the hot air duct facing the support assembly has a number of air holes evenly arranged along the axial direction of the hot air duct.

[0008] Furthermore, the base is provided with an anti-slip pad at the bottom. The anti-slip pad is made of rubber and has anti-slip textures on its surface. It is connected to the base by adhesive.

[0009] Furthermore, the base is provided with an arc-shaped guide rail, and the lower part of the positioning base is provided with several sliders that are slidably connected to the arc-shaped guide rail.

[0010] Furthermore, a motor is installed inside the base, and the output shaft of the motor is connected to the rotating shaft.

[0011] Furthermore, the positioning base is a frustum-shaped structure with a small upper diameter and a large lower diameter. During heat shrink packaging, the lower end of the heat shrink film is fitted onto the inclined surface of the positioning base.

[0012] Furthermore, the positioning base is provided with several positioning steps with progressively increasing diameters from top to bottom.

[0013] Furthermore, the base is provided with an adjustment mechanism for adjusting the distance between the heat shrink mechanism and the support assembly to accommodate heat shrink films of different materials. The adjustment mechanism includes a fixed seat, with linear guide rails on both sides of the fixed seat, and slide blocks slidably connected to the linear guide rails on both sides. The lower end of the hot air pipe is installed on the slide block. A lead screw is rotatably connected to the fixed seat, with a handwheel at one end of the lead screw, and the bottom of the slide block is threadedly connected to the lead screw.

[0014] Furthermore, the slide is provided with a protective cover, and the protective cover has an air outlet on the side near the support assembly. The hot air pipe is installed inside the protective cover by several clamps.

[0015] The beneficial effects of this utility model are: (1) This utility model uses a positioning base to realize the positioning of salt core products and heat shrink film, ensuring the quality and consistency of heat shrink packaging of ring-shaped salt core products. In addition, the support component of this utility model can flexibly adjust the position of the support plate according to the inner diameter of the ring-shaped salt core products, enhancing the flexibility of the tooling.

[0016] (2) By attaching an anti-slip pad with anti-slip texture to the bottom of the base, the stability of the tooling is ensured during the heat shrink packaging of salt core products.

[0017] (3) An arc-shaped guide rail is provided on the base, and a slider that is slidably connected to the arc-shaped guide rail is provided at the bottom of the positioning base. This not only enhances the stability of the support component, but also ensures the smoothness of the support component when rotating.

[0018] (4) The motor drives the support components to rotate at a constant speed, which not only reduces the labor intensity of the operators, but also ensures the consistency of the rotation speed of the support components, thereby ensuring the effect of heat shrink packaging of salt core products.

[0019] (5) The positioning base is a frustum-shaped structure with a small upper diameter and a large lower diameter. When heat shrinking packaging, the lower end of the heat shrink film is placed on the inclined surface of the positioning base, which can ensure that the salt core product is fully packaged and facilitate the removal of the heat shrink film after heat shrinking.

[0020] (6) By setting multiple positioning steps on the positioning base, the problem of positioning heat shrink film packaging of different diameters is solved.

[0021] (7) By setting an adjustment mechanism on the base, the distance between the hot air pipe and the support component is adjusted, which ensures the heat shrink effect of heat shrink film of different materials during the heat shrink process and improves the packaging quality of salt core products. Attached Figure Description

[0022] Figure 1 This is a diagram showing the usage status of a heat-shrink packaging tool for a ring-shaped salt core product according to this utility model.

[0023] Figure 2 This is a schematic diagram of a heat-shrink packaging tooling structure for a ring-shaped salt core product according to this utility model.

[0024] Figure 3 This is a schematic diagram of the supporting component structure.

[0025] Figure 4 This is the bottom view of the supporting component.

[0026] Figure 5 This is a schematic diagram of the interior of the base.

[0027] Figure 6 This is a schematic diagram of a heat-shrinkable component.

[0028] Figure 7 This is a schematic diagram of the positioning base.

[0029] In the diagram, 1. Base; 11. Anti-slip pad; 12. Arc-shaped guide rail; 13. Motor; 2. Support assembly; 21. Positioning base; 22. Slide groove; 23. Base shaft; 24. Fixed bushing; 25. Movable bushing; 26. Connecting rod; 27. Support rod; 28. Spring; 29. ​​Adjustment knob; 210. Support plate; 211. Slider; 212. Rotating shaft; 213. Positioning step; 3. Heat shrink assembly; 31. Hot air duct; 32. Air hole; 33. Protective cover; 34. Clamp; 35. Fixed seat; 36. Linear guide rail; 37. Slide seat; 38. Lead screw; 39. Handwheel. Detailed Implementation

[0030] The following will be combined with the appendix Figures 1-7 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] like Figure 1 , Figure 2 As shown, a heat-shrink packaging fixture for ring-shaped salt core products includes a base 1, a support assembly 2, and a heat-shrink assembly 3. The base 1 is used to mount the support assembly 2 and the heat-shrink assembly 3. Figure 2 , Figure 3 As shown, the support assembly 2 is mounted on the base 1 to support the ring-shaped salt core product, including the positioning base 21, as shown. Figure 4 As shown, the bottom of the positioning base 21 is provided with a rotating shaft 212 that is rotatably connected to the base 1. The positioning base 21 not only positions the ring-shaped salt core product, but also positions the end of the heat shrink film, ensuring the positioning accuracy of the heat shrink film.

[0033] like Figure 3 As shown, a base shaft 23 is fixedly connected to the positioning base 21. An adjustment knob 29 is threadedly connected to the upper end of the base shaft 23. A fixed bushing 24 is fixedly connected to the bottom of the base shaft 23. Several support rods 27 are hinged to the fixed bushing 24. A movable bushing 25 that can slide along its axial direction is provided on the base shaft 23. A spring 28 is provided between the fixed bushing 24 and the movable bushing 25. Several sets of parallel connecting rods 26 are hinged to the movable bushing 25. One end of the support rod 27 is hinged to the middle of the connecting rod 26 near the positioning base 21. Several radially arranged sliding grooves 22 are provided on the positioning base 21. A support plate 210 is slidably connected in the sliding groove 22. One end of the connecting rod 26 is hinged to the support plate 210. The support plate 210 is supported on the inner wall of the ring-shaped salt core product. like Figure 6 As shown, the heat shrinking assembly 3 is used to heat shrink the stacked ring-shaped salt core products on the support assembly 2. It includes a hot air pipe 31, and the side of the hot air pipe 31 facing the support assembly 2 is provided with a plurality of air holes 32 evenly arranged along the axial direction of the hot air pipe 31.

[0034] When heat-shrink packaging ring-shaped salt core products, the salt core products are placed on the outside of the support plate 210 of the support assembly 2. The salt core products are stacked under their own weight. Then, the adjustment knob 29 is rotated, which pushes the movable bushing 25 to move axially along the base shaft 23. Under the action of the support rod 27, the support plate 210 is opened and pressed against the inner wall of the salt core product, thus completing the positioning and fixing of the salt core product.

[0035] The heat shrink film is then placed over the stacked salt core products, with the bottom of the heat shrink film resting against the positioning base 21 to complete the positioning of the heat shrink film. Then, hot air is introduced into the hot air pipe 31 to heat and shrink the heat shrink film. During the heat shrinking process, the positioning base 21 is rotated at a constant speed to complete the heat shrink packaging of the salt core products.

[0036] like Figure 1 , Figure 2 As shown, the base 1 has an anti-slip pad 11 at the bottom. The anti-slip pad 11 is made of rubber and has anti-slip texture on its surface. It is connected to the base 1 by adhesive. The anti-slip pad 11 ensures the stability of the tooling during heat shrink packaging of salt core products.

[0037] like Figure 5 As shown, the base 1 is provided with an arc-shaped guide rail 12, such as Figure 4 As shown, the lower part of the positioning base 21 is provided with several sliders 211 that are slidably connected to the arc-shaped guide rail 12. The arc-shaped guide rail 12 and the sliders 211 not only enhance the stability of the support component 2, but also ensure the smoothness of the support component 2 when rotating.

[0038] like Figure 5 As shown, a motor 13 is installed inside the base 1. The output shaft of the motor 13 is connected to the rotating shaft 212. The motor 13 avoids the need for manual rotation of the support component 2, which not only reduces the labor intensity of the operators, but also ensures the consistency of the rotation speed of the support component 2, thereby ensuring the effect of heat shrink packaging of salt core products.

[0039] like Figure 3 As shown, the positioning base 21 is a frustum-shaped structure with a small upper diameter and a large lower diameter. During heat shrink packaging, the lower end of the heat shrink film is placed on the inclined surface of the positioning base, which can not only ensure that the salt core product is fully packaged, but also facilitate the removal of the heat shrink film after heat shrinking.

[0040] like Figure 7 As shown, the positioning base 21 has several positioning steps 213 with progressively increasing diameters from top to bottom, which facilitates the positioning of heat shrink films of different diameters.

[0041] like Figure 6 As shown, the base 1 is provided with an adjustment mechanism for adjusting the distance between the heat shrink mechanism and the support component 2 to accommodate heat shrink films of different materials. The adjustment mechanism includes a fixed seat 35, with linear guide rails 36 on both sides of the fixed seat 35. Slide seats 37 are slidably connected to the linear guide rails 36 on both sides. The lower end of the hot air pipe 31 is installed on the slide seat 37. A lead screw 38 is rotatably connected to the fixed seat 35. A handwheel 39 is provided at one end of the lead screw 38. The bottom of the slide seat 37 is threadedly connected to the lead screw 38.

[0042] Different heat shrink films have different heat shrink characteristics, such as heat shrink temperature range and heat shrink rate. By turning the handwheel 39, the screw 38 drives the slide 37 to move on the fixed seat 35, adjusting the distance between the hot air pipe 31 and the support component 2, ensuring the heat shrink effect of different heat shrink films during the heat shrink process, and improving the packaging quality of salt core products.

[0043] like Figure 6 As shown, the slide 37 is provided with a protective cover 33. The protective cover 33 has an air outlet on the side near the support component 2. The hot air pipe 31 is installed inside the protective cover 33 by several clamps 34. The protective cover 33 prevents the operator from being burned by the hot air pipe 31.

[0044] The above content is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the scope defined by the structure of the utility model, they should all fall within the protection scope of this utility model.

Claims

1. A heat-shrink packaging tooling for ring-shaped salt core products, comprising: The base is used to mount the support components and heat shrink components; A support assembly, mounted on a base, is used to support ring-shaped salt core products. The support assembly includes a positioning base, with a rotating shaft rotatably connected to the base at its bottom. A base shaft is fixedly connected to the positioning base, with an adjustment knob threaded to its upper end. A fixed bushing is fixedly connected to the bottom of the base shaft. Several support rods are hinged to the fixed bushing. A movable bushing, slidable along its axial direction, is provided on the base shaft. A spring is provided between the fixed bushing and the movable bushing. Several sets of parallel connecting rods are hinged to the movable bushing. One end of each support rod is hinged to the middle of a connecting rod near the positioning base. The positioning base has several radially arranged grooves, with a support plate slidably connected within each groove. One end of each connecting rod is hinged to the support plate, which is supported on the inner wall of the ring-shaped salt core product. A heat shrink assembly for heat shrinking stacked ring-shaped salt core products on a support assembly, including a hot air duct, wherein the side of the hot air duct facing the support assembly has a number of air holes evenly arranged along the axial direction of the hot air duct.

2. The heat-shrink packaging tooling for ring-shaped salt core products according to claim 1, characterized in that, The base has an anti-slip pad at the bottom. The anti-slip pad is made of rubber and has anti-slip texture on its surface. It is connected to the base by adhesive.

3. The heat-shrink packaging tooling for ring-shaped salt core products according to claim 1, characterized in that, The base is provided with an arc-shaped guide rail, and the lower part of the positioning base is provided with several sliders that are slidably connected to the arc-shaped guide rail.

4. The heat-shrink packaging tooling for ring-shaped salt core products according to claim 1, characterized in that, The base contains a motor, and the motor's output shaft is connected to the rotating shaft.

5. The heat-shrink packaging tooling for ring-shaped salt core products according to claim 1, characterized in that, The positioning base is a frustum-shaped structure with a small diameter at the top and a large diameter at the bottom. During heat shrink packaging, the lower end of the heat shrink film is fitted onto the inclined surface of the positioning base.

6. The heat-shrink packaging tool for ring-shaped salt core products according to claim 5, characterized in that, The positioning base has several positioning steps with progressively increasing diameters from top to bottom.

7. A heat-shrink packaging tool for ring-shaped salt core products according to any one of claims 1-6, characterized in that, The base is equipped with an adjustment mechanism for adjusting the distance between the heat shrink mechanism and the support assembly to accommodate heat shrink films of different materials. The adjustment mechanism includes a fixed seat with linear guide rails on both sides. Slide seats are slidably connected to the linear guide rails on both sides, and the lower end of the hot air pipe is installed on the slide seats. A lead screw is rotatably connected to the fixed seat, and a handwheel is provided at one end of the lead screw. The bottom of the slide seat is threadedly connected to the lead screw.

8. The heat-shrink packaging tooling for ring-shaped salt core products according to claim 7, characterized in that, The slide is equipped with a protective cover, and the protective cover has an air outlet on the side near the support component. The hot air pipe is installed inside the protective cover by several clamps.

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