Sheet forming die
Through the design of modules and adjustment components, the thermal expansion and contraction rod and the tightening block form a balance force, the problem of uneven sheet thickness in lithium battery separator production is solved, and the uniformity of sheet thickness and the extension of mold service life is achieved.
Patent Information
- Application Number
- CN202510738185.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-04
- Publication Date
- 2025-08-15
AI Technical Summary
During the production process of existing lithium battery separators, the rubber material easily impacts the inner wall of the discharge gap when extruded from the discharge gap, resulting in the larger discharge gap, resulting in uneven sheet thickness, affecting production quality.
The module and adjustment component design is adopted, including adjustment seat, tightening block and thermal expansion and contraction rod. The tightening block is extruded by the expansion and extrusion of the thermal expansion and contraction rod to form a balance force to stabilize the outlet gap and ensure uniform sheet thickness.
Effectively prevent the gap between the discharge port to expand, ensure uniform sheet thickness, improve production quality, and extend the service life of the mold through removable connection and heating pipe design.
Smart Images
Figure CN120481238A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of molds, and in particular to a sheet forming mold. Background Art
[0002] The diaphragm in lithium batteries is one of the key internal components. The performance of the lithium battery diaphragm determines the interface structure and internal resistance of the battery, and directly affects the battery's capacity, cycle and safety performance.
[0003] Currently, thin films are mainly produced through flat molds that can extrude sheets. The mold mainly includes an upper mold and a lower mold. When the upper mold and the lower mold are closed, a gap is left at the die lip for discharge. The rubber compound used to produce lithium battery separators is injected into the mold and extruded into sheets. However, the rubber compound has a high temperature. During the process of being extruded from the discharge gap, the rubber compound is easy to impact the inner wall of the discharge gap, causing the gap in the discharge gap to become larger, resulting in uneven thickness of the sheet extruded from the discharge gap, thereby reducing the production quality of the sheet. Summary of the Invention
[0004] In order to improve the problem that the rubber material easily impacts the inner wall of the discharge gap during the process of being extruded from the discharge gap, the present application provides a sheet forming mold.
[0005] This application provides a sheet forming die, which adopts the following technical solution: A sheet forming mold includes a module and an adjustment component, the module having a main flow channel and at least two auxiliary flow channels, at least two of the auxiliary flow channels are located on both sides of the main flow channel, one end of the module is provided with a main material port and at least two auxiliary material ports spaced apart, the main material port is connected to the main flow channel, the auxiliary material port corresponds to and is connected to the auxiliary flow channel one by one, the other end of the module is provided with a discharge port, the main flow channel and the auxiliary flow channel are both connected to the discharge port, the adjustment component includes an adjustment seat, a clamping block and a thermal expansion and contraction rod, the clamping block is connected to the surface of the module near the discharge port, the adjustment seat is connected to the surface of the module, one end of the thermal expansion and contraction rod is connected to the surface of the adjustment seat, the other end of the thermal expansion and contraction rod is provided with a clamping groove for the clamping block to be embedded, the outer peripheral surface of the clamping block is pressed against the inner wall of the clamping groove to form a limit; when the rubber material in the main flow channel is squeezed out from the discharge port, the thermal expansion and contraction rod heats up and expands and squeezes the clamping block, driving the clamping block to extrude the module surface.
[0006] By adopting the above technical solution, the insulating auxiliary material is injected into the auxiliary flow channel through the auxiliary material port, and the conductive main material is injected into the main flow channel through the main material port. The insulating auxiliary material covers both sides of the conductive main material and is discharged from the discharge port. The conductive main material and the insulating auxiliary material both have high temperature. The conductive main material and the insulating auxiliary material transfer heat energy to the inner wall of the discharge port. The inner wall of the discharge port transfers heat energy to the thermal expansion and contraction rod through the holding block. The thermal expansion and contraction rod heats up and expands and squeezes the holding block, driving the holding block to extrude the module surface. The impact of the rubber material on the inner wall of the discharge port and the pressure of the holding block on the module surface form a pair of balancing forces, so that the gap of the discharge port is not easily expanded by pressure, ensuring that the thickness of the sheet extruded from the discharge port is uniform, thereby improving the production quality of the sheet.
[0007] Optionally, the thermal expansion and contraction rod includes a thermal expansion and contraction part, a clamping part and a locking bolt, one end of the thermal expansion and contraction part is connected to the surface of the adjustment seat, and the other end of the thermal expansion and contraction part is provided with a clamping groove for the end of the clamping part to be embedded, the end face of the clamping part located in the clamping groove is provided with a threaded hole 1, and the end face of the clamping groove facing the threaded hole 1 is provided with a threaded hole 2, the end of the locking bolt passes through the threaded hole 1 and is threadedly connected to the inner wall of the threaded hole 2, the locking groove is located between the thermal expansion and contraction part and the clamping part, and the thermal expansion and contraction part and the clamping part clamp the two sides of the clamping block to form a limit.
[0008] By adopting the above technical solution, the end of the thermal expansion and contraction part is connected to the surface of the adjusting seat, and the clamping part has an end portion with a threaded hole one embedded in the clamping groove, the threaded hole one is connected to the threaded hole two, and the end of the locking bolt passes through the threaded hole and is threaded and tightened to be fixed in the inner wall of the threaded hole two, so that the thermal expansion and contraction part and the clamping part are detachable. When the clamping part is worn and needs to be replaced, there is no need to replace the entire thermal expansion and contraction rod, which reduces material loss and reflects the concept of environmental protection; at the same time, the clamping groove is located between the thermal expansion and contraction part and the clamping part, and the thermal expansion and contraction part and the clamping part clamp the two sides of the clamping block to form a limit. When the thermal expansion and contraction part heats up and expands, the clamping block is driven to compress the module, and the surface of the clamping part is pressed against the end face of the clamping block, so that the clamping block is not easy to separate from the clamping groove, thereby improving the limit stability of the clamping block in the clamping groove.
[0009] Optionally, the adjustment assembly also includes a heating tube, and an adjustment cavity for accommodating the heating tube is provided on the surface of the adjustment seat. The end face of the heating tube facing the thermal expansion and contraction part is provided with a positioning cavity for embedding the end of the thermal expansion and contraction part, and the heating tube can heat and expand the thermal expansion and contraction part.
[0010] By adopting the above technical solution, the heating tube is embedded in the adjustment cavity, the outer peripheral surface of the heating tube is pressed against the inner wall of the adjustment cavity to form a limit, the end of the thermal expansion and contraction part located at the adjustment seat is embedded in the positioning cavity, and the inner wall of the positioning cavity is pressed against the outer peripheral surface of the heating tube to form a limit; at the same time, the heating tube can heat and expand the thermal expansion and contraction part, drive the thermal expansion and contraction part to squeeze the pressing block, and drive the pressing block to squeeze the module surface, thereby ensuring the pressing force of the pressing block on the module surface.
[0011] Optionally, the adjustment component further includes an elastic strip, which is embedded in the positioning cavity, and the end surface of the thermal expansion and contraction portion located in the positioning cavity abuts against the surface of the elastic strip.
[0012] By adopting the above technical solution, the end face of the thermal expansion and contraction part located in the positioning cavity abuts the surface of the elastic strip. When the thermal expansion and contraction part heats up and expands, the thermal expansion and contraction part squeezes the elastic strip, and the elastic strip is deformed under pressure, reducing the squeezing of the thermal expansion and contraction part on the heating tube.
[0013] Optionally, a deformation cavity is provided on the end surface of the module facing the thermal expansion and contraction portion.
[0014] By adopting the above technical solution, the deformation cavity is located at the end face of the module facing the thermal expansion and contraction part, and the deformation cavity provides a deformation space for the pressing block extrusion module, thereby improving the toughness against deformation of the inner wall of the discharge port.
[0015] Optionally, the module includes a base, an upper mold base, a lower mold base, an upper mold lip and a lower mold lip, the upper mold base and the lower mold base are connected at intervals on the surface of the base, the main flow channel and the auxiliary flow channel are located between the upper mold base and the lower mold base, the upper mold lip is connected to the side of the upper mold base away from the main material port, the lower mold lip is connected to the side of the lower mold base away from the main material port, the discharge port is located between the upper mold lip and the lower mold lip, the adjustment seat is connected to the upper mold base, and the tightening block is connected to the surface of the upper mold base close to the lower mold lip.
[0016] By adopting the above technical solution, the base, upper mold base, lower mold base, upper mold lip and lower mold lip are spliced to form a module. When the main channel and the auxiliary channel need to be cleaned, the base, upper mold base and lower mold base are disassembled. The main channel is located between the upper mold base and the lower mold base. The staff can directly clean the inner wall of the main channel and the inner wall of the auxiliary channel, thereby ensuring the stability of the sheet produced by the sheet forming mold, thereby extending the service life of the sheet forming mold.
[0017] Optionally, a plurality of heat dissipation holes are provided at intervals on the surface of the adjustment seat, and the heat dissipation holes are connected to the adjustment cavity.
[0018] By adopting the above technical solution, multiple heat dissipation holes are distributed at intervals on the surface of the adjustment seat, and the heat dissipation holes are connected to the adjustment cavity. The outside air can enter the adjustment cavity through the heat dissipation holes. The air is in full contact with the heating tube and heat exchange is carried out, which promotes the air flow in the adjustment cavity, making it difficult for the heating tube to continue to heat up, thereby improving the stability of the heating temperature of the heating tube.
[0019] Optionally, an escape cavity is reserved between the abutting block and the upper die lip for the end portion of the clamping portion to be embedded.
[0020] By adopting the above technical solution, the avoidance cavity is located between the clamping block and the upper die lip, and the end of the clamping part is embedded in the avoidance cavity. The clamping part is not easy to contact the upper die lip, so that the upper die lip is not easily compressed and worn, thereby improving the service life of the sheet forming mold. At the same time, the clamping part squeezes the clamping block and drives the clamping block to squeeze the upper die base, so that the upper die base is close to the discharge port. The upper die lip is connected to the upper die base, driving the upper die lip close to the discharge port, so that the discharge port is not easily expanded by the impact of the rubber material, thereby improving the production quality of the sheet.
[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The arrangement of the adjusting seat, the pressing block and the thermal expansion and contraction rod drives the pressing block to squeeze the module surface. The impact of the rubber on the inner wall of the discharge port and the pressure of the pressing block on the module surface form a pair of balanced forces, making the gap of the discharge port less likely to expand under pressure, ensuring the uniform thickness of the sheet extruded from the discharge port, thereby improving the production quality of the sheet; 2. The arrangement of the thermal expansion and contraction portion, the clamping portion, and the locking bolt causes the abutting block to press against the module when the thermal expansion and contraction portion heats up and expands, and the surface of the clamping portion abuts against the end face of the abutting block, making it difficult for the abutting block to escape from the abutting groove, thereby improving the limiting stability of the abutting block in the abutting groove; 3. The setting of the heating tube can heat and expand the thermal expansion and contraction part, drive the thermal expansion and contraction part to squeeze the pressing block, and drive the pressing block to extrude the module surface, thereby ensuring the pressing force of the pressing block on the module surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the overall structure in Example 1 of the present application.
[0023] Figure 2 This is a partial cross-sectional view in Example 1 of the present application, mainly showing the module.
[0024] Figure 3 This is a cross-sectional view of Example 1 of the present application, mainly showing the main flow channel and the auxiliary flow channel.
[0025] Figure 4 It is a partial cross-sectional view in Example 2 of the present application.
[0026] Explanation of reference numerals: 1. Module; 11. Base; 12. Upper die seat; 121. Main flow channel; 122. Auxiliary flow channel; 123. Discharge port; 124. Main material port; 125. Auxiliary material port; 126. Deformation cavity; 13. Lower die seat; 14. Upper die lip; 141. Avoidance cavity; 15. Lower die lip; 2. Adjustment assembly; 21. Adjustment seat; 211. Adjustment cavity; 212. Heat dissipation hole; 213. Locking cavity; 214. Positioning flow channel; 215. Air guide flow channel; 22. Heating tube; 221. Positioning cavity; 23. Elastic strip; 24 , tightening block; 25, thermal expansion and contraction rod; 251, thermal expansion and contraction part; 252, clamping part; 253, locking bolt; 254, clamping groove; 255, threaded hole one; 256, threaded hole two; 257, tightening groove; 3, locking assembly; 31, locking plate; 32, locking ring plug; 321, positioning groove; 33, locking rod; 34, thermal expansion and contraction strip; 4, inflatable airbag; 5, positioning assembly; 51, thermal expansion and contraction block; 52, positioning rod; 6, heat dissipation assembly; 61, heat dissipation motor; 62, heat dissipation impeller; 63, contact switch. DETAILED DESCRIPTION
[0027] The following is combined with Figure 1-4 This application is described in further detail.
[0028] The embodiment of the present application discloses a sheet forming mold.
[0029] Example 1 Reference Figure 1 and Figure 2 A sheet forming mold includes a module 1 and an adjustment component 2. The module 1 includes a base 11, an upper mold base 12, a lower mold base 13, an upper mold lip 14 and a lower mold lip 15. The bottom of the base 11 abuts the ground to form a support. The upper mold base 12 and the lower mold base 13 are fixed to the surface of the base 11 by bolts at intervals. The upper mold lip 14 is integrally formed and fixed at one end in the height direction of the upper mold base 12, and the lower mold lip 15 is integrally formed and fixed at one end in the height direction of the lower mold base 13.
[0030] Reference Figure 2 and Figure 3 A main channel 121 and at least two auxiliary channels 122 are left on the end faces where the upper die base 12 and the lower die base 13 abut each other. The two auxiliary channels 122 are located on both sides of the main channel 121. A discharge port 123 is left between the end faces where the upper die lip 14 and the lower die lip 15 face each other. The discharge port 123 connects the main channel 121 and the two auxiliary channels 122. A main material port 124 and at least two auxiliary material ports 125 are left on the end faces where the upper die base 12 and the lower die base 13 abut each other. The main material port 124 and the auxiliary material port 125 are located on the side of the upper die base 12 and the lower die base 13 away from the discharge port 123. The main material port 124 is connected to the main channel 121, and the auxiliary material port 125 corresponds one-to-one with and is connected to the auxiliary channel 122.
[0031] Reference Figure 2 and Figure 3 In the embodiment of the present application, the auxiliary material is insulating, the main material is conductive, the aperture of the discharge port 123 is 4 mm, and the adjusting component 2 is installed on the upper die base 12. The adjusting component 2 can apply pressure to the upper die base 12 to drive the upper die lip 14 close to the discharge port 123; when the insulating auxiliary material enters the auxiliary flow channel 122 through the auxiliary material port 125 and the conductive main material enters the main flow channel 121 through the main material port 124, the insulating auxiliary material covers both sides of the conductive main material and is discharged from the discharge port 123, and the rubber material impacts the inner wall of the discharge port 123. At the same time, the adjusting component 2 squeezes the upper die base 12 close to the discharge port 123. The impact of the rubber material on the inner wall of the discharge port 123 and the pressure of the adjusting component 2 on the upper die base 12 form a pair of balancing forces, so that the gap of the discharge port 123 is not easily expanded by pressure, ensuring that the thickness of the sheet extruded from the discharge port 123 is maintained at 4 mm for uniform output, thereby improving the production quality of the sheet.
[0032] Reference Figure 2 and Figure 3 The adjusting assembly 2 includes an adjusting seat 21, a heating tube 22, an elastic strip 23, a tightening block 24 and a thermal expansion and contraction rod 25. The adjusting seat 21 is fixed to the surface of the upper mold base 12 by bolts, and the tightening block 24 is integrally formed and fixed to the end face of the upper mold base 12 near the discharge port 123. In the embodiment of the present application, the tightening block 24 is a strip-shaped block, and the length direction of the tightening block 24 is parallel to the length direction of the discharge port 123. The number of the heating tube 22, the elastic strip 23 and the thermal expansion and contraction rod 25 can be one, two or more. In the embodiment of the present application, the number of the heating tube 22, the elastic strip 23 and the thermal expansion and contraction rod 25 are all multiple. A plurality of adjusting cavities 211 for embedding the heating tube 22 are spaced apart on the surface of the adjusting seat 21. The arrangement direction of the adjusting cavity 211 is parallel to the length direction of the tightening block 24, and the adjusting cavity 211 passes through the adjusting seat 2 in the direction close to the tightening block 24. 1 surface, the heating tubes 22 are embedded in the adjustment cavity 211 in a one-to-one correspondence, and the outer peripheral surface of the heating tube 22 is pressed against the inner wall of the adjustment cavity 211 to form a limit. The end surface of the heating tube 22 facing the pressing block 24 is provided with a positioning cavity 221 for the end of the thermal expansion and contraction rod 25 to be embedded. The outer peripheral surface of the thermal expansion and contraction rod 25 abuts against the inner wall of the positioning cavity 221 to form a limit. The heating tube 22 can heat the thermal expansion and contraction rod 25. The material of the elastic strip 23 can be rubber or silicone. In the embodiment of the present application, the material of the elastic strip 23 is rubber with a certain deformation ability. The elastic strip 23 is embedded in the positioning cavity 221, and the end surface of the thermal expansion and contraction rod 25 located in the positioning cavity 221 abuts against the surface of the elastic strip 23. The elastic strip 23 provides a deformation space for the thermal expansion and contraction rod 25 to expand when heated, so that the heating tube 22 is not easily worn by the thermal expansion and contraction rod 25 when heated, thereby extending the service life of the heating tube 22.
[0033] Reference Figure 2 and Figure 3 The thermal expansion and contraction rod 25 includes a thermal expansion and contraction portion 251, a clamping portion 252 and a locking bolt 253. The material of the thermal expansion and contraction portion 251 can be a memory alloy or iron. In the embodiment of the present application, the material of the thermal expansion and contraction portion 251 is iron, which has a good thermal expansion coefficient. One end of the thermal expansion and contraction portion 251 is embedded in the positioning cavity 221, and the other end of the thermal expansion and contraction portion 251 passes through the adjustment cavity 211 and faces the clamping block 24. The end surface of the thermal expansion and contraction portion 251 close to the clamping block 24 is provided with a A clamping groove 254 is provided for the end of the clamping part 252 to be embedded, and a threaded hole 255 is provided on the end surface of the clamping part 252 located in the clamping groove 254. The threaded hole 255 passes through the outer wall of the clamping part 252, and a threaded hole 256 is provided on the inner wall of the clamping groove 254 facing the threaded hole 256. The end of the locking bolt 253 passes through the threaded hole 255 and is threadedly tightened and fixed on the inner wall of the threaded hole 256, thereby realizing a detachable installation between the clamping part 252 and the thermal expansion and contraction part 251.
[0034] Reference Figure 2 and Figure 3 A tightening groove 257 is reserved between the thermal expansion and contraction portion 251 and the clamping portion 252 for the clamping block 24 to be embedded in. The end face of the thermal expansion and contraction portion 251 facing the tightening groove 257 and the end face of the clamping portion 252 facing the tightening groove 257 clamp the two sides of the tightening block 24 to form a limit. An avoidance cavity 141 is reserved between the tightening block 24 and the upper die lip 14 for the end of the clamping portion 252 away from the thermal expansion and contraction portion 251 to be embedded in, so that the clamping portion 252 is not easy to squeeze the surface of the upper die lip 14 and cause wear of the upper die lip 14, thereby extending the service life of the sheet forming mold.
[0035] Reference Figure 2 and Figure 3 A deformation cavity 126 is provided on the end face of the upper die base 12 facing the thermal expansion and contraction part 251. The deformation cavity 126 is located on the side of the pressing block 24 away from the upper die lip 14. When the insulating auxiliary material and the conductive main material are discharged from the discharge port 123 and impact the inner wall of the discharge port 123, the heating tube 22 heats the thermal expansion and contraction part 251, and the thermal expansion and contraction part 251 heats up and expands, and drives the pressing block 24 to squeeze the surface of the upper die base 12, driving the upper die base 12 close to the discharge port 123. The impact of the rubber material on the inner wall of the discharge port 123 and the pressure of the pressing block 24 on the surface of the module 1 form a pair of balancing forces, so that the gap of the discharge port 123 is not easily expanded by pressure, ensuring that the thickness of the sheet extruded from the discharge port 123 is uniformly maintained at 4 mm, thereby improving the production quality of the sheet.
[0036] Reference Figure 1 and Figure 3A plurality of heat dissipation holes 212 are provided at intervals on the surface of the adjustment seat 21. The arrangement direction of the heat dissipation holes 212 is parallel to the length direction of the adjustment seat 21. The heat dissipation holes 212 are connected to the adjustment cavity 211. The outside air enters the adjustment cavity 211 through the heat dissipation holes 212 and fully contacts and exchanges heat with the heating tube 22, thereby cooling the heating tube 22 and allowing the heating tube 22 to accumulate heat and continue to heat up, thereby adjusting the expansion multiple of the thermal expansion and contraction part 251, making it difficult for the thermal expansion and contraction part 251 to over-expand and squeeze the heating tube 22, thereby improving the controllable adjustment of the heating expansion of the thermal expansion and contraction part 251.
[0037] The implementation principle of a sheet forming mold in Example 1 of the present application is as follows: when the insulating auxiliary material enters the auxiliary flow channel 122 through the auxiliary material port 125 and the conductive main material enters the main flow channel 121 through the main material port 124, the insulating auxiliary material covers both sides of the conductive main material and is discharged from the discharge port 123, and the rubber material impacts the inner wall of the discharge port 123. At the same time, the heating tube 22 heats the thermal expansion and contraction part 251, and the thermal expansion and contraction part 251 heats up and expands, and drives the clamping block 24 to squeeze the surface of the upper mold base 12, driving the upper mold base 12 close to the discharge port 123. The impact of the rubber material on the inner wall of the discharge port 123 and the pressure of the clamping block 24 on the surface of the module 1 form a pair of balancing forces, so that the gap of the discharge port 123 is not easily expanded by pressure, ensuring that the thickness of the sheet extruded from the discharge port 123 is uniformly maintained at 4 mm, thereby improving the production quality of the sheet.
[0038] Example 2 Reference Figure 4 The difference between Example 2 and Example 1 is that the adjustment seat 21 is connected to a locking assembly 3, which can limit the heating tube 22 to the adjustment cavity 211. The locking assembly 3 includes a locking plate 31, a locking ring plug 32, two locking rods 33 and two thermal expansion and contraction strips 34. The material of the locking ring plug 32 can be rubber or silicone. In the embodiment of the present application, the material of the locking ring plug 32 is rubber and has a certain deformation ability. A locking cavity 213 for the sliding of the locking ring plug 32 is opened on the surface of the adjustment seat 21. The locking cavity 213 surrounds the adjustment cavity 211. One end of the two locking rods 33 is fixed on the surface of the locking ring plug 32 at intervals around the axis of the locking ring plug 32. The other ends of the two locking rods 33 pass through the locking cavity 213 and are fixed on both sides of the locking plate 31. The plate surface of the locking plate 31 protrudes from the end face of the adjustment cavity 211 toward the heating tube 22.
[0039] Reference Figure 4The material of the thermal expansion and contraction strip 34 can be a memory alloy or nylon. In the embodiment of the present application, the material of the thermal expansion and contraction strip 34 is a memory alloy with a good thermal expansion coefficient. One end of the two thermal expansion and contraction strips 34 is fixed on the surface of the locking ring plug 32 around the axis of the locking ring plug 32, and the other end of the two thermal expansion and contraction strips 34 is fixed on the inner wall of the locking cavity 213. The thermal expansion and contraction strips 34 and the locking rod 33 are located on the same side of the locking ring plug 32. When the heating tube 22 heats the thermal expansion and contraction part 251, the thermal expansion and contraction strips 34 are fixed on the inner wall of the locking cavity 213. The shrinking portion 251 heats up and expands, squeezing the heating tube 22, driving the heating tube 22 to slide away from the adjusting chamber 211. At the same time, the thermal expansion and contraction strip 34 heats up and expands, driving the locking ring plug 32 to slide toward the locking chamber 213, driving the locking plate 31 to approach the heating tube 22. The surface of the locking plate 31 presses against the end of the heating tube 22 protruding from the adjusting seat 21 to form a limit, making it difficult for the heating tube 22 to deviate from the inner wall of the adjusting chamber 211, thereby improving the limit stability of the heating tube 22 in the adjusting chamber 211.
[0040] Reference Figure 4 The inner wall of the regulating chamber 211 is embedded with an inflatable airbag 4, and the material of the inflatable airbag 4 can be rubber or silicone. In the embodiment of the present application, the material of the inflatable airbag 4 is rubber, which has a certain deformation ability. The inner cavity of the inflatable airbag 4 is connected to the locking chamber 213, and the inflatable airbag 4 is located on the side of the locking ring plug 32 away from the thermal expansion and contraction strip 34. When the thermal expansion and contraction strip 34 heats up and expands, the locking ring plug 32 is driven to slide along the inner wall of the locking chamber 213 close to the inflatable airbag 4, and the air pressure in the locking chamber 213 increases. The locking chamber 213 is connected to the inner cavity of the inflatable airbag 4, and the air in the locking chamber 213 enters the inner cavity of the inflatable airbag 4. The surface of the inflatable airbag 4 is pressurized and expanded, and the surface of the inflatable airbag 4 is pressed against the outer peripheral surface of the heating tube 22 to form a limit, further increasing the pressing force between the heating tube 22 and the inflatable airbag 4, and improving the limit stability of the heating tube 22 in the regulating chamber 211.
[0041] Reference Figure 4 The adjustment seat 21 is connected to a positioning component 5, which can control the sliding of the locking ring plug 32 in the locking cavity 213. The positioning component 5 includes a thermal expansion and contraction block 51 and a positioning rod 52. A positioning flow channel 214 for the sliding of the positioning rod 52 is provided on the surface of the adjustment seat 21. The sliding direction of the positioning rod 52 is perpendicular to the axis of the heating tube 22. The material of the thermal expansion and contraction block 51 can be a memory alloy or nylon. In the embodiment of the present application, the material of the thermal expansion and contraction block 51 is a memory alloy with a good thermal expansion coefficient. One end of the thermal expansion and contraction block 51 is connected to the inner wall of the positioning flow channel 214, and the other end of the thermal expansion and contraction block 51 is connected to the rod surface of the positioning rod 52. The thermal expansion and contraction block 51 is located on the side of the positioning rod 52 away from the locking ring plug 32.
[0042] Reference Figure 4The positioning flow channel 214 is connected to the locking chamber 213, and the locking ring plug 32 is provided with a positioning groove 321 for the positioning rod 52 to be embedded in the end face facing the positioning flow channel 214. When the thermal expansion and contraction rod 25 heats up and expands to drive the locking ring plug 32 close to the positioning flow channel 214, the positioning flow channel 214 is connected to the positioning groove 321, and the thermal expansion and contraction block 51 heats up and expands and drives the positioning rod 52 to slide in the direction close to the positioning groove 321. The end of the positioning rod 52 is embedded in the positioning groove 321, and the outer peripheral surface of the positioning rod 52 is pressed against the inner wall of the positioning groove 321 to form a limit, thereby realizing the directional limit of the locking ring plug 32 in the locking chamber 213.
[0043] Reference Figure 4 The adjusting seat 21 is connected to a heat dissipation component 6, which can drive the air flow in the adjusting chamber 211. The heat dissipation component 6 includes a heat dissipation motor 61, a heat dissipation impeller 62 and a contact switch 63. The heat dissipation motor 61 is fixed to the surface of the adjusting seat 21 by bolts. The end of the motor shaft of the heat dissipation motor 61 passes through the outer wall of the adjusting seat 21 and is coaxially fixed on the rotating shaft of the heat dissipation impeller 62. An air guide channel 215 is provided on the end face of the adjusting seat 21 facing the air outlet end of the heat dissipation impeller 62. The air guide channel 215 is connected to the adjusting chamber 211. The heat dissipation motor 61 drives the heat dissipation impeller 62 to rotate, driving the air to enter the adjusting chamber 211 through the air guide flow and impact the outer peripheral surface of the heating tube 22. The air is in full contact with the heating tube 22 and performs heat exchange, thereby cooling the heating tube 22 and preventing the heating tube 22 from continuously heating up, thereby ensuring accurate control of the heating temperature of the heating tube 22.
[0044] Reference Figure 4 The contact switch 63 is connected to the side of the locking chamber 213 close to the positioning flow channel 214. The contact switch 63 is electrically connected to the cooling motor. When the thermal expansion and contraction strip 34 heats up and expands and drives the heat dissipation ring plug to slide toward the positioning flow channel 214, the end of the positioning rod 52 is embedded in the positioning groove 321, and the contact switch 63 abuts the surface of the heat dissipation ring plug and is turned on. The heat dissipation motor 61 is energized and runs, realizing the directional start of the heat dissipation motor 61, reducing energy loss, and thus embodying the concept of energy saving.
[0045] The implementation principle of a sheet forming mold in Example 2 of the present application is as follows: when the heating tube 22 heats the thermal expansion and contraction part 251, the thermal expansion and contraction part 251 heats up and expands and squeezes the heating tube 22, driving the heating tube 22 to slide in the direction away from the adjustment cavity 211, and at the same time, the thermal expansion and contraction strip 34 heats up and expands, driving the locking ring plug 32 to slide in the direction close to the locking cavity 213, driving the locking plate 31 to approach the heating tube 22, and the locking plate 31 plate surface presses against the end of the heating tube 22 protruding from the adjustment seat 21 to form a limit, and the locking cavity 213 is connected to the inner cavity of the inflatable airbag 4, and the air in the locking cavity 213 enters the inner cavity of the inflatable airbag 4, and the surface of the inflatable airbag 4 is pressurized and expanded. The surface is pressed against the outer peripheral surface of the heating tube 22 to form a limit, further increasing the pressing force between the heating tube 22 and the inflatable airbag 4, and improving the limiting stability of the heating tube 22 in the adjustment cavity 211. At the same time, the positioning channel 214 is connected to the positioning groove 321, and the thermal expansion and contraction block 51 heats up and expands and drives the positioning rod 52 to slide in the direction close to the positioning groove 321. The end of the positioning rod 52 is embedded in the positioning groove 321, and the outer peripheral surface of the positioning rod 52 is pressed against the inner wall of the positioning groove 321 to form a limit, thereby realizing directional limiting of the locking ring plug 32 in the locking cavity 213, making it difficult for the heating tube 22 to deviate from the inner wall of the adjustment cavity 211, thereby improving the limiting stability of the heating tube 22 in the adjustment cavity 211.
[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A sheet forming die, characterized in that: The invention comprises a module (1) and an adjustment component (2), wherein the module (1) has a main flow channel (121) and at least two auxiliary flow channels (122), and at least two auxiliary flow channels (122) are located on both sides of the main flow channel (121); one end of the module (1) is provided with a main material port (124) and at least two auxiliary material ports (125) spaced apart from each other, wherein the main material port (124) is connected to the main flow channel (121), and the auxiliary material ports (125) correspond to and are connected to the auxiliary flow channels (122) in a one-to-one manner; the other end of the module (1) is provided with a discharge port (123), and the main flow channel (121) and the auxiliary flow channel (122) are both connected to the discharge port (123); the adjustment component (2) comprises an adjustment seat (21), a pressing block (24) and a heat expansion and contraction rod (25), the pressing block (24) is connected to the surface of the module (1) near the discharge port (123), the adjustment seat (21) is connected to the surface of the module (1), one end of the heat expansion and contraction rod (25) is connected to the surface of the adjustment seat (21), and the other end of the heat expansion and contraction rod (25) is provided with a pressing groove (257) for the pressing block (24) to be embedded, and the outer peripheral surface of the pressing block (24) presses against the inner wall of the pressing groove (257) to form a limit; when the rubber material in the main channel (121) is squeezed out from the discharge port (123), the heat expansion and contraction rod (25) heats up and expands and squeezes the pressing block (24), driving the pressing block (24) to extrude the surface of the module (1).
2. A sheet forming mold according to claim 1, characterized in that: The thermal expansion and contraction rod (25) includes a thermal expansion and contraction part (251), a clamping part (252) and a locking bolt (253). One end of the thermal expansion and contraction part (251) is connected to the surface of the adjustment seat (21). The other end of the thermal expansion and contraction part (251) is provided with a clamping groove (254) for the end of the clamping part (252) to be embedded. The end surface of the clamping part (252) located in the clamping groove (254) is provided with a threaded hole (255). The clamping groove (254) is provided with a threaded hole 2 (256) on the end face facing the threaded hole 1 (255), the end of the locking bolt (253) passes through the threaded hole 1 (255) and is threadedly connected to the inner wall of the threaded hole 2 (256), the clamping groove (257) is located between the thermal expansion and contraction part (251) and the clamping part (252), and the thermal expansion and contraction part (251) and the clamping part (252) clamp the two sides of the clamping block (24) to form a limit.
3. A sheet forming mold according to claim 2, characterized in that: The adjustment assembly (2) further comprises a heating tube (22); an adjustment cavity (211) for accommodating the heating tube (22) is provided on the surface of the adjustment seat (21); a positioning cavity (221) for embedding the end of the thermal expansion and contraction portion (251) is provided on the end surface of the heating tube (22) facing the thermal expansion and contraction portion (251); and the heating tube (22) can heat and expand the thermal expansion and contraction portion (251).
4. A sheet forming die according to claim 3, characterized in that: The adjustment component (2) further comprises an elastic strip (23), wherein the elastic strip (23) is embedded in the positioning cavity (221), and the end surface of the thermal expansion and contraction portion (251) located in the positioning cavity (221) abuts against the surface of the elastic strip (23).
5. The sheet forming mold according to claim 2, characterized in that: The module (1) is provided with a deformation cavity (126) on the end surface facing the thermal expansion and contraction portion (251).
6. A sheet forming die according to claim 2, characterized in that: The module (1) comprises a base (11), an upper die base (12), a lower die base (13), an upper die lip (14) and a lower die lip (15); the upper die base (12) and the lower die base (13) are connected to the surface of the base (11) at intervals; the main flow channel (121) and the auxiliary flow channel (122) are located between the upper die base (12) and the lower die base (13); the upper die lip (14) is connected to the side of the upper die base (12) away from the main material port (124); the lower die lip (15) is connected to the side of the lower die base (13) away from the main material port (124); the discharge port (123) is located between the upper die lip (14) and the lower die lip (15); the adjustment base (21) is connected to the upper die base (12); and the pressing block (24) is connected to the surface of the upper die base (12) close to the lower die lip (15).
7. The sheet forming mold according to claim 3, characterized in that: A plurality of heat dissipation holes (212) are spaced apart on the surface of the adjustment seat (21), and the heat dissipation holes (212) are connected to the adjustment cavity (211).
8. The sheet forming die according to claim 6, characterized in that: An avoidance cavity (141) is reserved between the abutting block (24) and the upper die lip (14) for the end of the clamping portion (252) to be embedded.