Auxiliary demoulding equipment for producing tennis inner tubes

Abstract

The present invention relates to an auxiliary demoulding device for producing tennis inner tubes, comprising a symmetrically arranged left hemispherical mold frame and a right hemispherical mold frame, and a multi-layer deformation structure with adjustable thermal strain characteristics is connected thereto, the outer deformation layer is composed of a plurality of hexagonal outer deformation blocks 1 and pentagonal outer deformation blocks 2, and is provided with an independent outer cooling chamber and an outer heating pipe, the inner deformation layer is composed of inner deformation blocks 1 and 2 that match it, the inner deformation layer is made of a material with a greater shrinkage rate when cold than the outer deformation layer, ensuring that it is first separated from the inner tube surface during the demoulding process, and utilizing the characteristics of different thermal strain materials to ensure that the demoulding operation is carried out in order from the inside to the outside, thereby reducing the risk of product damage that may be caused by traditional demoulding methods. In addition, atomization holes and connecting holes are specially provided, so that the coolant can be evenly sprayed onto the inner tube surface in an atomized form, which not only realizes the efficient cooling and lubrication function, but also optimizes the smoothness of the entire demoulding process.

Description

Technical Field

[0001] The invention relates to auxiliary demoulding equipment for producing a tennis inner tube, in particular to auxiliary demoulding equipment for producing a tennis inner tube applied in the technical field of inner tube manufacturing. Background Art

[0002] The specification of Chinese invention patent CN116618633 discloses an inner tube membrane with automatic demoulding and a refractory casting method thereof. The invention hinges the first membrane segment, the second membrane segment and the third membrane segment on a fixed frame, and drives the three to move through a push rod assembly to realize the formation and separation of a barrel-shaped structure, which effectively solves the problem of difficulty in demoulding after the mold is cast. However, in the specific application scenario of a tennis inner tube, due to its extremely high requirements on product size accuracy and complex shape, the above method may not be able to achieve uniform and fine pressure distribution in actual application. At the same time, the mechanical action during the demoulding process may also cause potential damage to the inner tube, affecting product quality and yield rate. There is a problem that the special structure of the tennis inner tube and the adhesion problem that may occur during the high-temperature molding process are not fully considered, resulting in the possibility of demoulding difficulties or inner tube deformation in the actual production process.

[0003] Although the above designs have achieved certain results in their respective application scenarios, they still have great limitations in solving the precise demolding requirements caused by the thermal expansion and contraction characteristics of the material during the production of tennis inner tubes, and how to ensure that the demolding process is gentle and damageless to improve product quality. Summary of the invention

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a tennis inner tube production auxiliary demolding equipment based on a layered structure design of thermally strained materials, which can achieve an orderly, non-destructive and efficient demolding process through precise temperature control and graded cooling and lubrication technology, thereby improving the production quality and yield rate of tennis inner tubes, reducing production costs, and meeting the needs of the high-end tennis inner tube manufacturing industry for high-quality and refined production.

[0005] In order to solve the above problems, the present invention provides an auxiliary demoulding device for producing tennis inner tubes, comprising a symmetrically arranged left hemispherical mold frame and a right hemispherical mold frame, wherein the ends of the left hemispherical mold frame and the right hemispherical mold frame close to each other are respectively fixedly connected with a left outer deformation layer and a right outer deformation layer, and the ends of the left outer deformation layer and the right outer deformation layer close to each other are respectively fixedly connected with a left inner deformation layer and a right inner deformation layer, an outer cooling chamber is provided in the left outer deformation layer and the right outer deformation layer, an inner cooling chamber is provided in the left inner deformation layer and the right inner deformation layer, an outer heating pipe and an inner heating pipe are respectively fixedly connected in the outer cooling chamber and the inner cooling chamber, and a plurality of deformation rings are fixedly connected at the ends of the left inner deformation layer and the right inner deformation layer close to each other. The cooling chamber and the inner cooling chamber are both filled with coolant, the outer cooling chamber and the inner cooling chamber are both connected to external equipment through pipes, and a solenoid valve is provided between the pipes and the external equipment, the external equipment has heating and cooling functions, the outer heating tube and the inner heating tube are electrically connected to the same controller, the left outer deformation layer, the right outer deformation layer, the left inner deformation layer, the right inner deformation layer and the deformation ring are all made of thermal strain materials, and the left outer deformation layer and the right outer deformation layer and the left inner deformation layer and the right inner deformation layer and the deformation ring are made of different thermal strain materials respectively, the deformation ring has a greater shrinkage rate when exposed to cold than the left inner deformation layer and the right inner deformation layer, and the left inner deformation layer and the right inner deformation layer have a greater shrinkage rate when exposed to cold than the left outer deformation layer and the right outer deformation layer.

[0006] In the above-mentioned tennis inner tube production auxiliary demolding equipment, a high degree of control and optimization of the tennis inner tube demolding process is achieved through the layered thermal strain material structure design. The left hemisphere mold frame and the right hemisphere mold frame constitute the main frame, and are respectively connected with the left outer deformation layer, the right outer deformation layer, the left inner deformation layer and the right inner deformation layer from the outside to the inside, as well as multiple deformation rings with increasing shrinkage rates when exposed to cold. Precise temperature control is performed through independent external cooling chambers and internal cooling chambers in conjunction with heating pipes, and orderly shrinkage from the inside to the outside is achieved by utilizing the characteristics of different thermal strain materials, effectively reducing the risk of inner tube tearing or deformation that may be caused by traditional demolding methods. In addition, the equipment also uses an electromagnetic valve to control the coolant circulation system, ensuring the safety and controllability of the overall operation, thereby improving the efficiency, quality and yield rate of tennis inner tube production.

[0007] As a further improvement of the present application, the left outer deformation layer and the right outer deformation layer are both composed of multiple outer deformation blocks one and outer deformation blocks two, the multiple outer deformation blocks one are all hexagonal structures, the multiple outer deformation blocks two are all pentagonal structures, the multiple outer deformation blocks one and the external deformation blocks two are spliced ​​with each other, the multiple outer deformation blocks one and the external deformation blocks two are each provided with an external cooling chamber, and the multiple external cooling chambers are each fixedly connected with an external heating pipe.

[0008] As a further improvement of the present application, the left inner deformation layer and the right inner deformation layer are composed of multiple inner deformation blocks 1 and inner deformation blocks 2. The multiple inner deformation blocks 1 are all arranged in coordination with one end of the outer deformation block 1 that is close to each other, and each outer deformation block 1 corresponds to six inner deformation blocks 1.

[0009] As a further improvement of the present application, multiple inner deformation blocks 2 are arranged in cooperation with one end of the outer deformation block 2 close to each other, each outer deformation block 2 corresponds to five inner deformation blocks 2, and each inner deformation block 1 and inner deformation block 2 is fixedly connected to a deformation ring at one end close to the center of the left hemisphere mold frame and the right hemisphere mold frame.

[0010] As another improvement of the present application, multiple outer deformation blocks 1 and outer deformation blocks 2 are provided with external atomization holes at one end close to the center of the left hemisphere mold frame and the right hemisphere mold frame, and multiple inner deformation blocks 1 and inner deformation blocks 2 are provided with multiple internal atomization holes at one end close to the center of the left hemisphere mold frame and the right hemisphere mold frame, and the multiple internal atomization holes are evenly distributed between the multiple deformation rings.

[0011] As another improvement supplement to the present application, multiple outer deformation blocks 1, outer deformation block 2, inner deformation block 1 and inner deformation block 2 are all triangular structures, and connecting holes are opened on the three faces of the triangular structure. Multiple outer deformation blocks 1, outer deformation block 2, inner deformation block 1 and inner deformation block 2 are interconnected through multiple connecting holes, and multiple external atomization holes and internal atomization holes are connected to the external cooling chamber and the inner cooling chamber.

[0012] As another improvement supplement to the present application, the shrinkage rate of the left inner deformation layer and the right inner deformation layer is 20% greater than that of the left outer deformation layer and the right outer deformation layer, and the strain temperature of the left outer deformation layer and the right outer deformation layer is greater than the strain temperature of the left inner deformation layer and the right inner deformation layer.

[0013] As another improvement of the present application, the following steps are included:

[0014] S1. Heating and sealing;

[0015] S2. Inner tube molding;

[0016] S3. First-stage cooling deformation demoulding;

[0017] S4. Secondary cooling deformation demoulding;

[0018] S5.First level deformation lubrication;

[0019] S6. Three-stage cooling deformation demoulding;

[0020] S7. Secondary deformation lubrication.

[0021] In summary, this application has the following beneficial effects:

[0022] 1. Modular structure design: The equipment adopts a modular outer deformation layer and inner deformation layer structure. The left outer deformation layer is composed of multiple hexagonal outer deformation blocks, and the right outer deformation layer is composed of multiple pentagonal outer deformation blocks. The flexible and changeable design enables the equipment to fit the complex curved surface shape of the tennis inner tube tightly, thereby providing uniform pressure distribution during the molding and demoulding process, and improving the accuracy and consistency of the product.

[0023] 2. Application of layered thermal strain materials and shrinkage rate control; the left inner deformation layer, the right inner deformation layer and the deformation ring are all made of thermal strain materials with different shrinkage rates when exposed to cold. Among them, the deformation ring has the largest shrinkage rate when exposed to cold, ensuring that it is first detached from the inner tube surface during cooling; followed by the inner deformation layer, and finally the outer deformation layer. The differentiated design ensures the orderly demoulding process and effectively avoids the inner tube tearing or deformation caused by one-time rapid demoulding.

[0024] 3. Precision temperature control system: The equipment is equipped with an external cooling chamber and an internal cooling chamber, and is equipped with external heating pipes and internal heating pipes. The temperature changes of each deformation layer are accurately controlled by the controller, which can not only ensure that the inner tube is fully shaped in the molding stage, but also achieve precise cooling and shrinkage in the demoulding stage, thereby improving production efficiency and product quality.

[0025] 4. Graded cooling and lubrication technology: Atomization holes are set near the center end of the mold on the outer deformation block 1 and the outer deformation block 2 as well as the inner deformation block 1 and the inner deformation block 2. These holes are connected with the cooling chamber, so that the coolant can be sprayed onto the surface of the inner tube in the form of atomization, playing a dual role of lubrication and cooling during the demolding process, greatly reducing the friction and adhesion between the inner tube and the mold, and further ensuring the quality and integrity of the inner tube.

[0026] 5. Optimized production process and energy-saving effect: The equipment is specially designed so that the shrinkage rate of the left inner deformation layer and the right inner deformation layer is greater than that of the left outer deformation layer and the right outer deformation layer, and the strain temperature of the inner deformation layer is set lower, so that the inner deformation layer shrinks before the outer deformation layer, thereby achieving a gentle and orderly demoulding step, effectively reducing energy consumption, while improving the overall production efficiency, reducing the defective product rate, and bringing better economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is the overall structure diagram of this application;

[0028] Figure 2 This is the front view of the application;

[0029] Figure 3 It is the AA cross-sectional view of this application;

[0030] Figure 4 It is the BB cross-sectional view of this application;

[0031] Figure 5 For the overall explosion of this application Figure 1 ;

[0032] Figure 6 For the overall explosion of this application Figure 2 ;

[0033] Figure 7 The local structure of this application Figure 1 ;

[0034] Figure 8 The local structure of this application Figure 2 ;

[0035] Fig. 9 The local structure of this application Figure 3 ;

[0036] Fig.10 The local structure of this application Figure 4 ;

[0037] Fig.11 The local structure of this application Figure 5 ;

[0038] Fig.12 The local structure of this application Figure 6 ;

[0039] Fig.13 It is the CC section view of this application;

[0040] Fig.14 The local structure of this application Figure 7 ;

[0041] Fig.15 The local structure of this application Figure 8 ;

[0042] Fig.16 This is the DD cross-sectional view of this application.

[0043] Description of the numbers in the figure:

[0044] 1. Left hemispherical mold frame; 2. Right hemispherical mold frame; 3. Left outer deformation layer; 4. Right outer deformation layer; 5. Left inner deformation layer; 6. Right inner deformation layer; 7. External cooling chamber; 8. Internal cooling chamber; 9. External heating tube; 10. Internal heating tube; 11. Deformation ring; 12. External deformation block 1; 13. External deformation block 2; 14. Internal deformation block 1; 15. Internal deformation block 2; 16. External atomization hole; 17. Internal atomization hole; 18. Connecting hole. DETAILED DESCRIPTION

[0045] Three implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0046] The first implementation method:

[0047] Figure 1-16 The figure shows an auxiliary demoulding device for producing tennis inner tubes, comprising a symmetrically arranged left hemispherical mold frame 1 and a right hemispherical mold frame 2, wherein the ends of the left hemispherical mold frame 1 and the right hemispherical mold frame 2 close to each other are respectively fixedly connected with a left outer deformation layer 3 and a right outer deformation layer 4, and the ends of the left outer deformation layer 3 and the right outer deformation layer 4 close to each other are respectively fixedly connected with a left inner deformation layer 5 and a right inner deformation layer 6, an outer cooling chamber 7 is provided in the left outer deformation layer 3 and the right outer deformation layer 4, an inner cooling chamber 8 is provided in the left inner deformation layer 5 and the right inner deformation layer 6, an outer heating tube 9 and an inner heating tube 10 are respectively fixedly connected in the outer cooling chamber 7 and the inner cooling chamber 8, a plurality of deformation rings 11 are fixedly connected at the ends of the left inner deformation layer 5 and the right inner deformation layer 6 close to each other, and a plurality of deformation rings 11 are fixedly connected at the ends of the left inner deformation layer 5 and the right inner deformation layer 6 close to each other, and a plurality of deformation rings 11 are fixedly connected at the ends of the left inner deformation layer 5 and the right inner deformation layer 6 close to each other. The cooling chamber 8 is filled with coolant, the outer cooling chamber 7 and the inner cooling chamber 8 are connected to the external equipment through pipes, and a solenoid valve is provided between the pipes and the external equipment, the external equipment has heating and cooling functions, the outer heating tube 9 and the inner heating tube 10 are electrically connected to the same controller, the left outer deformation layer 3, the right outer deformation layer 4, the left inner deformation layer 5, the right inner deformation layer 6 and the deformation ring 11 are all made of thermal strain materials, and the left outer deformation layer 3 and the right outer deformation layer 4 and the left inner deformation layer 5 and the right inner deformation layer 6 and the deformation ring 11 are made of different thermal strain materials respectively, the deformation ring 11 shrinks more when it is cold than the left inner deformation layer 5 and the right inner deformation layer 6, and the left inner deformation layer 5 and the right inner deformation layer 6 shrink more when it is cold than the left outer deformation layer 3 and the right outer deformation layer 4.

[0048] The left hemispherical mold frame 1 and the right hemispherical mold frame 2 are the main structures of the equipment and are symmetrically arranged to adapt to the spherical characteristics of the tennis inner tube, ensuring that the inner tube can be completely wrapped after the mold is closed, and providing a stable support foundation for the subsequent molding and demolding processes.

[0049] The left outer deformation layer 3 and the right outer deformation layer 4 are made of thermal strain materials, and an external cooling chamber 7 is provided inside and fixedly connected to an external heating tube 9. The external heating tube 9 is heated or cooled by adjusting the external device through the controller to realize the expansion or contraction of the deformation layer, thereby providing stable pressure during the inner tube molding stage, and helping to separate the inner tube from the mold through cooling and contraction during the demolding stage, thereby reducing the difficulty of demolding.

[0050] The left inner deformation layer 5 and the right inner deformation layer 6 are also made of thermal strain materials, but their shrinkage rate when cooled is greater than that of the left outer deformation layer 3 and the right outer deformation layer 4. The inner cooling chamber 8 and the inner heating tube 10 provided inside the left inner deformation layer 5 and the right inner deformation layer 6 can more accurately control the temperature change, ensuring that they shrink before the outer deformation layer during demolding, so as to release part of the inner tube area earlier and gradually reduce the adhesion between the inner tube and the mold.

[0051] The deformable ring 11 is made of a thermal strain material with a greater shrinkage rate when cooled. It is in direct contact with the inner tube, so that it shrinks significantly first during the cooling process and detaches from the inner tube surface first, thereby playing a key role in the first step of demolding, effectively avoiding damage to the inner tube caused by tight adhesion between the inner tube and the mold.

[0052] The outer cooling chamber 7 and the inner cooling chamber 8 are filled with coolant, which can quickly absorb or transfer heat. They are connected to external equipment through solenoid valves, which facilitates rapid and effective heating or cooling of each deformation layer, thereby achieving precise temperature control of the inner tube molding and demoulding process.

[0053] The outer heating tube 9 and the inner heating tube 10 are respectively placed in the outer cooling chamber 7 and the inner cooling chamber 8, and are electrically connected to the same controller. The temperature of each deformation layer can be adjusted independently or synchronously to meet the process requirements of different stages, thereby realizing refined and intelligent control of the tennis inner tube production process from molding to demolding, improving production efficiency and product quality, and reducing the adverse effects and losses that may occur to the inner tube during demolding.

[0054] The second implementation method:

[0055] Figure 1-16 As shown, the left outer deformation layer 3 and the right outer deformation layer 4 are both composed of multiple outer deformation blocks 12 and outer deformation blocks 13. The multiple outer deformation blocks 12 are all hexagonal structures, and the multiple outer deformation blocks 13 are all pentagonal structures. The multiple outer deformation blocks 12 and outer deformation blocks 2 13 are spliced ​​with each other.

[0056] External cooling chambers 7 are provided in the plurality of external deformation blocks 1 12 and the plurality of external deformation blocks 2 13 , and external heating pipes 9 are fixedly connected to the plurality of external cooling chambers 7 .

[0057] The left inner deformation layer 5 and the right inner deformation layer 6 are both composed of multiple inner deformation blocks 14 and inner deformation blocks 2 15. The multiple inner deformation blocks 14 are all matched with one end of the outer deformation block 12 that is close to each other. Each outer deformation block 12 corresponds to six inner deformation blocks 14.

[0058] Multiple inner deformation blocks 15 are arranged in cooperation with one end of the outer deformation block 13 that is close to each other, each outer deformation block 13 corresponds to five inner deformation blocks 15, and each inner deformation block 14 and inner deformation block 2 15 is fixedly connected to a deformation ring 11 at one end close to the center of the left hemispherical mold frame 1 and the right hemispherical mold frame 2.

[0059] Multiple outer deformation blocks 12 and outer deformation blocks 2 13 are each provided with outer atomization holes 16 at one end near the center of the left hemispherical mold frame 1 and the right hemispherical mold frame 2, and multiple inner deformation blocks 1 14 and inner deformation blocks 2 15 are each provided with multiple inner atomization holes 17 at one end near the center of the left hemispherical mold frame 1 and the right hemispherical mold frame 2. The multiple inner atomization holes 17 are evenly distributed between the multiple deformation rings 11.

[0060] The plurality of outer deformation blocks 12, outer deformation blocks 2, 13, inner deformation blocks 1, 14 and inner deformation blocks 2, 15 are all triangular structures, and connecting holes 18 are opened on three surfaces of the triangular structure. The plurality of outer deformation blocks 12, outer deformation blocks 2, 13, inner deformation blocks 1, 14 and inner deformation blocks 2, 15 are interconnected through the plurality of connecting holes 18, and the plurality of outer atomization holes 16 and inner atomization holes 17 are connected to the outer cooling chamber 7 and the inner cooling chamber 8.

[0061] The shrinkage rate of the left inner deformation layer 5 and the right inner deformation layer 6 is 20% greater than that of the left outer deformation layer 3 and the right outer deformation layer 4 , and the strain temperature of the left outer deformation layer 3 and the right outer deformation layer 4 is greater than that of the left inner deformation layer 5 and the right inner deformation layer 6 .

[0062] The left outer deformation layer 3 and the right outer deformation layer 4 of the outer deformation block 12 and the outer deformation block 2 13 adopt a modular design, which is composed of a plurality of hexagonal outer deformation blocks 12 and pentagonal outer deformation blocks 2 13 spliced ​​together, which can flexibly adapt to the complex spherical shape of the tennis inner tube and ensure the uniformity of the pressure distribution on the inner tube surface during the molding and demolding process. Each outer deformation block 12 and outer deformation block 2 13 is provided with an independent external cooling chamber 7 and is fixed with an external heating pipe 9, so that the equipment can accurately control the temperature of each block as needed to achieve the thermal expansion and contraction effect, thereby better wrapping the inner tube and releasing the inner tube at the appropriate time, reducing the risk of inner tube tearing or deformation that may be caused by traditional demolding.

[0063] The left inner deformation layer 5 and the right inner deformation layer 6 also adopt a modular design, including an inner deformation block 14 matched with the outer deformation block 12 and an inner deformation block 2 15 matched with the outer deformation block 2 13. Each outer deformation block 12 corresponds to six inner deformation blocks 14, and each outer deformation block 2 13 corresponds to five inner deformation blocks 2 15, which improves the fit between the contact surface of the mold and the inner tube, and helps to improve the precision and quality of the product. At the same time, each inner deformation block 14 and inner deformation block 2 15 are connected to a deformation ring 11. During the cooling and shrinking process, the deformation ring 11 first detaches from the surface of the inner tube, and then drives the entire inner tube to gradually separate from the mold, realizing a staged and orderly demolding process, which greatly reduces the damage to the inner tube.

[0064] An outer atomizing hole 16 and an inner atomizing hole 17 are arranged at one end of the outer deformation block 12, the outer deformation block 2 13, the inner deformation block 1 14 and the inner deformation block 2 15 close to the center of the left hemispherical mold frame 1 and the right hemispherical mold frame 2. These atomizing holes are connected with the outer cooling chamber 7 and the inner cooling chamber 8. When the coolant flows through, fine droplets are generated and sprayed onto the surface of the inner tube, which plays a role in lubrication and rapid cooling, greatly reducing the demoulding resistance. In addition, in order to ensure that the coolant can flow smoothly between the deformation blocks to achieve the purpose of overall temperature control, connecting holes 18 are also opened on the three faces of the triangular structure, so that each deformation block forms a complete cooling circulation system.

[0065] The shrinkage rate of the left inner deformation layer 5 and the right inner deformation layer 6 is designed to be 20% higher than that of the left outer deformation layer 3 and the right outer deformation layer 4, and the strain temperature of the left inner deformation layer 5 and the right inner deformation layer 6 is set lower, ensuring that in the demolding process, the left inner deformation layer 5 and the right inner deformation layer 6 perform effective shrinkage before the left outer deformation layer 3 and the right outer deformation layer 4, first reducing the close adhesion between the inner tube and the mold, and then the left outer deformation layer 3 and the right outer deformation layer 4 gradually shrink, further helping the inner tube to completely separate from the mold. The graded demolding method can not only protect the inner tube from damage, but also improve production efficiency and product quality.

[0066] The third implementation method:

[0067] Figure 1-16 Shown, comprising the following steps;

[0068] S1. Heating and sealing;

[0069] The left hemispherical mold frame 1 and the right hemispherical mold frame 2 are closed to prepare for inner tube molding, and then the controller controls the external heating tube 9 and the internal heating tube 10 to heat the left outer deformation layer 3, the right outer deformation layer 4, the left inner deformation layer 5 and the right inner deformation layer 6. At this time, the volume of multiple deformation rings 11, external deformation block one 12, external deformation block two 13, internal deformation block one 14 and internal deformation block two 15 expands, and the multiple external deformation blocks one 12, external deformation block two 13, internal deformation block one 14 and internal deformation block two 15 are close to each other to form a seal.

[0070] S2. Inner tube molding;

[0071] S3. First-stage cooling deformation demoulding;

[0072] The solenoid valve between the pipeline and the external equipment is opened by the controller to pass the coolant into the inner cooling chamber 8. At this time, the temperature of the multiple inner deformation blocks 14 and the inner deformation block 2 15 is reduced, which leads to the temperature of the multiple deformation rings 11 being reduced. At this time, the volume of the multiple deformation rings 11 is shrunk, and the multiple deformation rings 11 are slightly separated from the surface of the inner tube, completing the first demolding.

[0073] S4. Secondary cooling deformation demoulding;

[0074] The cooling liquid continues to be introduced into the inner cooling chamber 8 through the external equipment, and the temperature of the multiple inner deformation blocks 14 and the inner deformation blocks 2 15 continues to decrease. At this time, the volumes of the multiple inner deformation blocks 14 and the inner deformation blocks 2 15 shrink, and the multiple inner deformation blocks 14 and the inner deformation blocks 2 15 drive the multiple deformation rings 11 to move away from the inner tube surface again, completing the second demolding.

[0075] S5.First level deformation lubrication;

[0076] When the volume of the multiple inner deformation blocks 14 and the internal deformation blocks 2 15 shrinks, the apertures of the multiple inner atomization holes 17 on the multiple inner deformation blocks 14 and the internal deformation blocks 2 15 become larger. At this time, the coolant in the inner cooling chamber 8 is sprayed from the multiple inner atomization holes 17 to the surface of the inner tube, performing the first cooling and lubrication on the inner tube.

[0077] S6. Three-stage cooling deformation demoulding;

[0078] The solenoid valve between the pipeline and the external equipment is opened by the controller to pass the coolant into the external heating tube 9. The coolant in the external heating tube 9 causes the multiple outer deformation blocks 12 and the outer deformation blocks 13 to shrink in volume. The shrinkage of the outer deformation blocks 12 and the outer deformation blocks 13 drives the multiple inner deformation blocks 14 and the inner deformation blocks 15 connected thereto and the multiple deformation rings 11 to move away from the inner tube surface, completing the third demolding.

[0079] S7. Secondary deformation lubrication.

[0080] When the volume of the multiple outer deformation blocks 12 and the outer deformation blocks 2 13 shrinks, the distance between the multiple inner deformation blocks 14 and the inner deformation blocks 2 15 increases. At this time, the multiple outer atomization holes 16 on the multiple outer deformation blocks 12 and the outer deformation blocks 2 13 are opened, and the coolant in the multiple outer deformation blocks 12 and the outer deformation blocks 2 13 is sprayed from the multiple inner atomization holes 17 to the surface of the inner tube, performing a second cooling and lubrication on the inner tube.

[0081] A symmetrically arranged left hemispherical mold frame 1 and a right hemispherical mold frame 2 are adopted, and a left outer deformation layer 3, a right outer deformation layer 4, a left inner deformation layer 5, a right inner deformation layer 6 and a plurality of deformation rings 11 are respectively arranged therebetween, each layer is made of thermal strain material, and the materials of different layers have different shrinkage rates when cooled, ensuring that during the cooling process, starting from the deformation ring 11, gradually to the left inner deformation layer 5 and the right inner deformation layer 6, and then to the left outer deformation layer 3 and the right outer deformation layer 4, they shrink in an orderly manner from inside to outside and from large to small shrinkage rates, thereby reducing the adhesion between the inner tube and the mold and achieving an easy and lossless demoulding process.

[0082] The left outer deformation layer 3 and the right outer deformation layer 4 are internally composed of multiple hexagonal outer deformation blocks 12 and pentagonal outer deformation blocks 2 13, which enhances the adaptability and self-adaptability of the equipment to external pressure changes. Similarly, the left inner deformation layer 5 and the right inner deformation layer 6 are installed in cooperation with multiple inner deformation blocks 14 and inner deformation blocks 2 15. This modular design enables the equipment to fit and wrap the inner tube more accurately to meet the needs of products of different specifications and shapes.

[0083] An external heating tube 9 and an internal heating tube 10 are embedded in the external cooling chamber 7 and the internal cooling chamber 8. The heating and cooling states of the two are precisely regulated by the controller, thereby achieving independent and meticulous temperature management of each deformation layer. This not only ensures that the inner tube is heated evenly during the entire molding and demolding process, effectively preventing product defects caused by local overheating or uneven cooling, but also saves energy and reduces consumption, thereby improving production efficiency.

[0084] Through the three stages of primary cooling deformation demolding, secondary cooling deformation demolding and tertiary cooling deformation demolding, the adhesion strength of each deformation layer to the inner tube is gradually reduced to avoid the inner tube tearing or deformation problem caused by one-time rapid cooling. During the primary cooling deformation demolding, the deformation ring 11 is firstly utilized to shrink in volume when cooled so as to initially separate from the surface of the inner tube; during the secondary cooling deformation demolding, the inner deformation block 14 and the inner deformation block 2 15 are further cooled to cause them to drive the deformation ring 11 away from the inner tube; finally, in the tertiary cooling deformation demolding stage, the outer deformation block 12 and the outer deformation block 2 13 are cooled to shrink in volume and then pull the inner layer component away from the inner tube, thereby completing the entire demolding process.

[0085] Inner atomizing holes 17 are provided on the inner deformation block 14 and the inner deformation block 2 15, and outer atomizing holes 16 are provided on the outer deformation block 12 and the outer deformation block 2 13. During the cooling and deformation process, the coolant will be sprayed onto the surface of the inner tube through these atomizing holes, which not only accelerates the cooling process and promotes the shrinkage of the deformation layer, but also plays a good lubricating role, reducing the potential damage of the inner tube caused by excessive friction during demolding. Through layered thermal strain material technology, modular deformation block structure, precise temperature control system and graded cooling and lubrication demolding process, the quality stability and production efficiency of the inner tube production are improved, and the product defective rate is reduced.

[0086] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A tennis inner tube production auxiliary demoulding equipment, characterized in that: The invention comprises a symmetrically arranged left hemispherical mold frame (1) and a right hemispherical mold frame (2), wherein the ends of the left hemispherical mold frame (1) and the right hemispherical mold frame (2) close to each other are respectively fixedly connected with a left outer deformation layer (3) and a right outer deformation layer (4), and the ends of the left outer deformation layer (3) and the right outer deformation layer (4) close to each other are respectively fixedly connected with a left inner deformation layer (5) and a right inner deformation layer (6), and the left outer deformation layer (3) and the right outer deformation layer (4) are both provided with an outer cooling chamber (7), and the left inner deformation layer (5) and the right inner deformation layer (6) are both provided with an inner cooling chamber (8), and the outer cooling chamber (7) and the inner cooling chamber (8) are respectively fixedly connected with an outer heating pipe (9) and an inner heating pipe (10), and the ends of the left inner deformation layer (5) and the right inner deformation layer (6) close to each other are respectively fixedly connected with a plurality of deformation rings (11), and the outer cooling chamber (7) and the inner cooling chamber (8) are both provided ... outer cooling chamber (7) and the inner cooling chamber (8) are both provided with an outer heating pipe (9) and an inner heating pipe (10), and the outer cooling chamber (7) and the inner cooling chamber (8) are both provided with an outer heating pipe (9) and an inner heating pipe (10), and the outer cooling chamber (7) and the inner cooling chamber (8) are both provided with an outer heating pipe (9) and an inner heating pipe (10), and the outer cooling chamber (7) and the inner cooling chamber (8) are both provided with an The outer cooling chamber (7) and the inner cooling chamber (8) are both filled with coolant. The outer cooling chamber (7) and the inner cooling chamber (8) are both connected to an external device through a pipeline, and a solenoid valve is provided between the pipeline and the external device. The external device has heating and cooling functions. The outer heating tube (9) and the inner heating tube (10) are both electrically connected to the same controller. The left outer deformation layer (3), the right outer deformation layer (4), the left inner deformation layer (5), the right inner deformation layer (6) and the deformation ring (11) are all made of thermal strain materials. The left outer deformation layer (3) and the right outer deformation layer (4) and the left inner deformation layer (5) and the right inner deformation layer (6) and the deformation ring (11) are respectively made of different thermal strain materials. The deformation ring (11) has a greater shrinkage rate when exposed to cold than the left inner deformation layer (5) and the right inner deformation layer (6). The left inner deformation layer (5) and the right inner deformation layer (6) have a greater shrinkage rate when exposed to cold than the left outer deformation layer (3) and the right outer deformation layer (4). The left outer deformation layer (3) and the right outer deformation layer (4) are both composed of a plurality of outer deformation blocks one (12) and outer deformation blocks two (13), the plurality of outer deformation blocks one (12) are all hexagonal structures, the plurality of outer deformation blocks two (13) are all pentagonal structures, and the plurality of outer deformation blocks one (12) and outer deformation blocks two (13) are spliced ​​together; A plurality of the outer deformation blocks 1 (12) and the outer deformation blocks 2 (13) are each provided with an outer cooling chamber (7), and an outer heating pipe (9) is fixedly connected to each of the plurality of the outer cooling chambers (7); The left inner deformation layer (5) and the right inner deformation layer (6) are each composed of a plurality of inner deformation blocks 1 (14) and inner deformation blocks 2 (15), the plurality of inner deformation blocks 1 (14) are each arranged in cooperation with one end of the outer deformation block 1 (12) close to each other, and each outer deformation block 1 (12) corresponds to six inner deformation blocks 1 (14); Multiple outer deformation blocks 1 (12) and outer deformation blocks 2 (13) are provided with outer atomization holes (16) at one end close to the center of the left hemispherical mold frame (1) and the right hemispherical mold frame (2), and multiple inner deformation blocks 1 (14) and inner deformation blocks 2 (15) are provided with multiple inner atomization holes (17) at one end close to the center of the left hemispherical mold frame (1) and the right hemispherical mold frame (2), and the multiple inner atomization holes (17) are evenly distributed between the multiple deformation rings (11).

2. The tennis inner tube production auxiliary demoulding equipment according to claim 1, characterized in that: The plurality of inner deformation blocks 2 (15) are arranged in cooperation with one end of the outer deformation block 2 (13) close to each other, each outer deformation block 2 (13) corresponds to five inner deformation blocks 2 (15), and each inner deformation block 1 (14) and inner deformation block 2 (15) is fixedly connected to a deformation ring (11) at one end close to the center of the left hemispherical mold frame (1) and the right hemispherical mold frame (2).

3. The tennis inner tube production auxiliary demoulding equipment according to claim 1, characterized in that: The plurality of outer deformation blocks 1 (12), outer deformation blocks 2 (13), inner deformation blocks 1 (14) and inner deformation blocks 2 (15) are all triangular structures, and connecting holes (18) are provided on three faces of the triangular structure. The plurality of outer deformation blocks 1 (12), outer deformation blocks 2 (13), inner deformation blocks 1 (14) and inner deformation blocks 2 (15) are all interconnected via the plurality of connecting holes (18), and the plurality of outer atomization holes (16) and inner atomization holes (17) are all connected to the outer cooling chamber (7) and the inner cooling chamber (8).

4. The tennis inner tube production auxiliary demoulding equipment according to claim 1, characterized in that: The shrinkage rates of the left inner deformation layer (5) and the right inner deformation layer (6) are 20 percent greater than the shrinkage rates of the left outer deformation layer (3) and the right outer deformation layer (4), and the strain temperatures of the left outer deformation layer (3) and the right outer deformation layer (4) are greater than the strain temperatures of the left inner deformation layer (5) and the right inner deformation layer (6).

5. A tennis inner tube production auxiliary demoulding device according to any one of claims 1 to 4, characterized in that: The steps include: S1. Heating and sealing; S2. Inner tube molding; S3. First-stage cooling deformation demoulding; S4. Secondary cooling deformation demoulding; S5.First level deformation lubrication; S6. Three-stage cooling deformation demoulding; S7. Secondary deformation lubrication.

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