A kind of automobile seat cushion's edge covering mould
By designing a multi-functional edge-sealing mold, automated edge-sealing of car seat basins was achieved, solving the problems of low production efficiency and high cost, and ensuring the consistency of product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONG FENG QI CHE BU JIAN CHANG
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-14
AI Technical Summary
The current production efficiency of car seat basins is low and the cost is high, making it difficult to achieve automated edge-wrapping operations.
Design an edge-wrapping mold that includes a clamping module, a pressing module, a front edge-wrapping module, a left edge-wrapping module, a right edge-wrapping module, and a rear edge-wrapping module. The mold can automatically wrap multiple sides of the seat blank through the mold closing and opening actions.
It improved production efficiency, reduced production costs, and ensured consistent product quality.
Smart Images
Figure CN224487302U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of stamping molds for automotive seat basins, and in particular, it is a edging mold for automotive seat basins. Technical Background
[0002] The seat basin is a key component of a car seat, bearing the weight of the human body and being the most complex stamped part in the entire seat frame assembly.
[0003] like Figure 1 As shown, the structure of the seat blank 100 includes a seat shell composed of a seat surface 1001 and side surfaces. The structure of the side surfaces includes a front side surface 1002, a left side surface 1003, and a right side surface 1004. One end of the front side surface is connected to the left side surface via a left arc-shaped side surface. The front side surface is connected to the left side surface and the front side surface is connected to the right side surface via an arc-shaped side surface 1005. The rear side of the seat surface is formed into a rear flanged part 1006 by a flanged process. The side of the front side surface and the side of the adjacent arc-shaped side surface are formed into a complete front flanged part 1007 by a flanged process. The side of the left side surface is formed into a left flanged part 1008 by a flanged process. The side of the right side surface is formed into a right flanged part 1009 by a flanged process. 1010 is the arc edge of the seat surface.
[0004] Figure 2 As shown, the seat blank is produced by stamping process, including the edging part. The edging part is 1011, and the arc-shaped edging part is 1012. The conventional manual hand-held simple edging operation is difficult to automate, resulting in high production costs and low production efficiency. Utility Model Content
[0005] This utility model provides a edging mold for car seat basins, aiming to solve the problems of low production efficiency and high cost in existing production methods.
[0006] To solve the above-mentioned technical problems, the present invention provides a molding die for edging an automotive seat basin, comprising an upper mold base and a lower mold base. The die is characterized by the following: a clamping module, a pressing module, a front edging module, a left edging module, a right edging module, and a rear edging module are provided between the upper and lower mold bases. The clamping module is used to clamp the seat surface of the blank, the pressing module is used to press the arc-shaped portion of the blank, the front edging module is used to edge the flanged portion of the front side body, the left edging module is used to edge the flanged portion of the left side body, and the right edging module is used to edge the flanged portion of the right side body. The edges are edge-wrapped, and the rear edge-wrapping module is used to wrap the rear flange of the seat surface. The clamping module consists of a lower clamping mold and an upper clamping mold. The structure of the lower clamping mold includes a parting lower module, which is fixed to the lower mold base by a lower template. The structure of the upper clamping mold includes a floating template, an upper template, and an upper pad stacked from top to bottom. The floating template is connected to the upper pad through a guide component. The upper template, the upper pad, and the upper mold base are fixedly connected to each other. The floating template is equipped with a parting upper module, which cooperates with the lower parting module to clamp the seat surface of the blank.
[0007] Further defining the above technical solution, the clamping module comprises a lower clamping mold and an upper clamping mold; the structure of the lower clamping mold includes a positioning block, a slider, and a limiting seat. The positioning block is embedded in the arc-shaped side body of the lower parting module. The slider is fixed to the lower template via a guide rail. A slider return spring is provided inside the lower template. A horizontal limiting groove is provided on the inner end face of the slider corresponding to the lower parting module. A guide slide rod is provided in the limiting groove. A floating pressure block is sleeved on the outer end of the guide slide rod. The outer end of the floating pressure block is limited to the inner end of the slider. A floating spring is provided inside the inner end of the slider. The outer end face of the floating pressure block can fit against the outer surface of the positioning block. A side surface of the floating pressure block is provided with... A limiting rod is provided, with its other end slidably connected to the limiting groove of the guide rail; the outer end of the guide slide rod can be inserted into the positioning hole of the positioning block, and the floating pressure block cooperates with the positioning block to press the arc-shaped side body; the limiting seat is fixed on the lower template, and the limiting seat cooperates with the outer end of the slider to prevent the slider from disengaging from the guide rail; the structure of the pressing upper mold includes an upper pressure block, which is fixedly connected to the upper pad plate, and a clearance groove is provided at the rounded corner of the parting upper module. The parting upper module is in clearance fit with the upper pressure block through the clearance groove, and a pressure groove is provided on the pressure surface of the upper pressure block corresponding to the lower parting module. The pressure groove of the upper pressure block cooperates with the lower parting module to press the arc edge of the seat body.
[0008] Further defining the above technical solution, the front edge-wrapping module is distributed at intervals along the length of the front side body; the front edge-wrapping module consists of a lower edge-wrapping mold and an upper edge-wrapping mold; the structure of the lower edge-wrapping mold includes an edge-wrapping fixing block and an edge-wrapping slider, the edge-wrapping fixing block is fixedly connected to the lower template, the inner end face of the edge-wrapping fixing block corresponding to the parting lower module is an inclined surface, a guide groove is provided on the inclined surface of the edge-wrapping fixing block, a guide protrusion is provided on the outer end inclined surface of the edge-wrapping slider, the guide protrusion is slidably connected to the guide groove, the edge-wrapping slider can move up and down and back and forth through the inclined surface of the edge-wrapping fixing block, a lifting spring for lifting the edge-wrapping slider is provided in the lower template, an edge-wrapping protrusion is provided on the inner end face of the edge-wrapping slider, the edge-wrapping protrusion is used to press the edge-wrapping part; the structure of the upper edge-wrapping mold includes an upper edge-wrapping pressing block, the upper edge-wrapping pressing block is fixedly connected to the upper pad plate, the upper edge-wrapping pressing block is used to push the edge-wrapping slider.
[0009] The front edge-wrapping module, left edge-wrapping module, and right edge-wrapping module have the same structure, only differing in the number used.
[0010] Further defining the above technical solution, the rear edge-wrapping module consists of a lower rear edge-wrapping mold and an upper rear edge-wrapping mold; the structure of the lower rear edge-wrapping mold includes a rear edge-wrapping slider, which is fixedly connected to the lower template via a guide rail. The lower template contains a return spring for the rear edge-wrapping slider. The inner end face of the rear edge-wrapping slider corresponding to the lower parting module is stepped, and the stepped surface on the rear edge-wrapping slider is used to press the rear flange of the seat surface; the structure of the upper rear edge-wrapping mold includes an upper rear edge-wrapping pressure block, which is fixedly connected to the upper pad. The upper edge-wrapping pressure block is spaced apart along the length direction of the rear edge-wrapping slider. The upper edge-wrapping pressure block is clearance-fitted with the upper parting module and is used to press the rear edge-wrapping slider.
[0011] Beneficial effects: The mold designed in this utility model can simultaneously complete the edge wrapping of multiple sides of the blank, effectively improving production efficiency, thereby helping to reduce production costs and labor input, and ensuring product quality consistency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the blank to be stamped.
[0013] Figure 2 This is a schematic diagram of the blank after stamping.
[0014] Figure 3 This is a structural diagram of the lower mold of this utility model.
[0015] Figure 4 This is a structural diagram of the upper mold of this utility model.
[0016] Figure 5 yes Figure 4 Internal structure diagram.
[0017] Figure 6This is a cross-sectional view of the lower clamping die.
[0018] Figure 7 This is a diagram of the internal structure of the lower clamping die.
[0019] Figure 8 This is a structural diagram of the lower mold for edge binding.
[0020] Figure 9 This is a structural diagram of the lower mold for the back edge wrapping.
[0021] Figure 10 This is a schematic diagram of the back edge binding mold.
[0022] Figure 11 This is a structural diagram of the guide slide bar. Detailed Implementation
[0023] like Figure 3 and Figure 4 As shown, a sealing mold for an automotive seat basin includes a lower mold base 1 and an upper mold base 2. A clamping module, a pressing module, a front sealing module, a left sealing module, a right sealing module, and a rear sealing module are provided between the upper mold base and the lower mold base. The clamping module is used to clamp the seat surface of the blank, the pressing module is used to press the arc-shaped part of the blank, the front sealing module is used to seal the flanged part of the front side body, the left sealing module is used to seal the flanged part of the left side body, the right sealing module is used to seal the flanged part of the right side body, and the rear sealing module is used to seal the flanged part of the rear side body.
[0024] like Figure 3 and Figure 4 As shown, the clamping module consists of a lower clamping mold and an upper clamping mold. The structure of the lower clamping mold includes a parting lower module 3, which is fixed to the lower mold base 1 via a lower template 4. The structure of the upper clamping mold includes a floating template 5, an upper template 6, and an upper pad 7 stacked sequentially from top to bottom. The floating template is connected to the upper pad via a guide assembly. The upper template, upper pad, and upper mold base are fixedly connected to each other. A parting upper module 8 is provided on the floating template. The parting upper module cooperates with the lower parting module to clamp the seat surface of the blank. The upper pad can be fixedly connected to the upper mold base. The guide assembly includes a guide sleeve 9 and a guide rod 10. The guide sleeve is fixed to the floating template, and the guide rod is slidably connected to the guide sleeve. One end of the guide rod passes through the upper template and is fixedly connected to the upper pad.
[0025] like Figure 3 and Figure 4As shown, the lower parting module is fixed with a floating blank positioning pin 11 and a punching recess module 12; the parting surface of the upper parting module is provided with a punch 13, which is fixedly connected to the upper template below the floating template through a pad; in order to avoid interference between the punch and the floating template and the upper parting module, through cavities are provided on both the floating template and the upper parting module, and they are clearance fits; the punch cooperates with the punching recess module in the lower parting module to perform secondary punching on the holes on the seat surface.
[0026] like Figure 5 As shown, the floating template moves reciprocally in the mold closing direction via a mold nitrogen spring 14 fixed in the upper template and upper pad.
[0027] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the clamping module consists of a lower clamping mold and an upper clamping mold. The structure of the lower clamping mold includes a positioning block 15, a slider 16, and a limiting seat 17. The positioning block is embedded in the arc-shaped side body of the lower parting module. The slider is fixed to the lower template by a guide rail 18. A slider return spring 19 is provided inside the lower template. The slider return spring is a nitrogen spring for molds. A horizontal limiting groove is provided on the inner end face of the slider corresponding to the lower parting module. A guide slide rod 20 is provided in the limiting groove. A floating pressure block 21 is sleeved on the outer end of the guide slide rod. The outer end of the floating pressure block is limited to the inner end of the slider. A floating spring 22 is provided inside the inner end of the slider. The floating spring is a nitrogen spring for molds. The outer end face of the floating pressure block can fit against the outer surface of the positioning block. A limiting rod 23 is provided on the side of the floating pressure block. The other end of the limiting rod is slidably connected to the limiting groove of the guide rail. The outer end of the guide slide rod can be inserted into the positioning hole of the positioning block. The floating pressure block cooperates with the positioning block to press the arc-shaped side body and press the arc-shaped edge. The limiting seat is fixed on the lower template and the limiting seat cooperates with the outer end of the slider to prevent the slider from leaving the guide rail. The structure of the pressing upper mold includes a first upper pressure block 24 and a second upper pressure block 25. The first upper pressure block and the second upper pressure block pass through the floating template and the upper template and are fixedly connected to the upper pad. The rounded corner of the parting upper module is provided with a clearance groove. The parting upper module is in clearance fit with the first upper pressure block through the clearance groove. The first upper pressure block is provided with a pressure groove 2401 on the pressure surface corresponding to the parting lower module. The upper pressure block pressure groove cooperates with the parting lower module to press the arc edge of the seat surface. The second upper pressure block and the slider are both provided with inclined surfaces. The second upper pressure block and the slider are in sliding fit through the inclined surfaces to push the slider. The clamping module is used to prevent local deformation of the blank during the edge wrapping process, and at the same time, it completes the pressing of the arc edge wrapping part; the inclined plane sliding has the advantages of simple structure and small space occupation. The inclined plane converts the mold closing force into horizontal punching force, and the stable output punching force can ensure production quality.
[0028] like Figure 3 , Figure 4 and Figure 8 As shown, the front edge-wrapping module is distributed at intervals along the length of the front side body; the front edge-wrapping module consists of a lower edge-wrapping mold and an upper edge-wrapping mold; the structure of the lower edge-wrapping mold includes an edge-wrapping fixing block 26 and an edge-wrapping slider 27. The edge-wrapping fixing block is fixedly connected to the lower template. The inner end face of the edge-wrapping fixing block corresponding to the parting lower module is an inclined surface. A guide groove is provided on the inclined surface of the edge-wrapping fixing block. A guide protrusion 28 is provided on the outer end inclined surface of the edge-wrapping slider. The guide protrusion is slidably connected to the guide groove. The edge-wrapping slider can move up and down and back and forth through the inclined surface of the edge-wrapping fixing block. A lifting spring 29 for lifting the edge-wrapping slider is provided in the lower template. The lifting spring is a nitrogen spring for molds. A wedge-shaped edge-wrapping protrusion 30 is provided on the inner end face of the edge-wrapping slider. The edge-wrapping protrusion is used to press the edge-wrapping part; the structure of the upper edge-wrapping mold includes an upper edge-wrapping pressure block 31. The upper edge-wrapping pressure block passes through the floating template and the upper template and is fixedly connected to the upper pad plate. The upper edge-wrapping pressure block is used to push the edge-wrapping slider. The inclined plane sliding method can achieve displacement in multiple directions. It has the advantages of simple structure and small space occupation. The inclined plane converts the mold closing force into horizontal punching force, and the stable output of punching force can ensure production quality.
[0029] The front edge-wrapping module, left edge-wrapping module, and right edge-wrapping module have the same structure, only differing in the number used.
[0030] like Figure 3 , Figure 4 , Figure 9 and Figure 10As shown, the rear edge-wrapping module consists of a lower rear edge-wrapping mold and an upper rear edge-wrapping mold. The lower rear edge-wrapping mold includes a rear edge-wrapping slider 32, which is fixedly connected to the lower template via a guide rail 33. The lower template contains a rear edge-wrapping slider return spring 34, which is a nitrogen spring for the mold. The inner end face of the rear edge-wrapping slider corresponding to the parting lower module is stepped, and the stepped surface 35 on the rear edge-wrapping slider is used to push the rear flange of the seat surface. The upper rear edge-wrapping mold includes a rear edge-wrapping slider... The edge-sealing upper pressure block 36 and the rear edge-sealing upper push block 37 are configured. The edge-sealing upper pressure block passes through the floating template and the upper template and is fixedly connected to the upper pad. The edge-sealing upper pressure block is spaced apart along the length of the rear edge-sealing slider. The edge-sealing upper pressure block is clearance-fitted with the parting upper module and is used to press the rear edge-sealing slider. The edge-sealing upper push block passes through the floating template and the upper template and is fixedly connected to the upper pad. Both the edge-sealing upper push block and the edge-sealing slider are provided with inclined surfaces. The edge-sealing upper push block and the edge-sealing slider slide together through the inclined surfaces to push the edge-sealing slider. The rear edge-sealing slider is used to seal the rear flange of the seat body by sliding and pressing. It has the advantages of simple structure and small space occupation. The inclined surface converts the mold closing force into horizontal punching force. The stable output punching force can ensure production quality. In order to prevent the pressed edge from springing back, the rear edge-sealing upper pressure block converts the mold closing force into strong pressure and applies it to the rear edge-sealing slider.
[0031] The stamping die also includes components such as a guide plate, inner guide sleeve, float block, outer guide post, limit post, die spring and float pin, which are conventional technologies and common knowledge in the field.
[0032] In use, the seat blank is placed on the lower parting module. During mold closing, the upper parting module descends. When the upper parting module contacts the blank, it clamps the blank through the cooperation of the lower parting module. The upper parting module is floating, allowing it to continue descending. Simultaneously, the clamping module, front edge-wrapping module, left edge-wrapping module, right edge-wrapping module, and rear edge-wrapping module begin operation. Clamping module: During mold closing, the first upper pressure block clamps the arc edge of the seat surface onto the lower parting module to prevent deformation. The second upper pressure block pushes the slider forward towards the lower parting module. When the floating pressure block engages with the positioning block, the slider continues forward, inserting the guide rod into the positioning block. When the slider reaches its limit position, the buffered floating pressure block flexibly presses out the arc-shaped edge. To prevent deformation, a forming groove 201 is provided on the outer surface of the guide rod 20 (e.g., Figure 11As shown), the cross-sectional shape of the guide slide rod matches the positioning hole of the positioning block, and the arc-shaped edge is formed in the forming groove cavity; during mold parting, the slider and floating pressure block return to their respective positions via nitrogen springs. Front edge module: During mold closing, the pressure block on the edge pushes the edge slider to move downward on the inclined surface of the fixed block and forward towards the lower parting module until the edge protrusion on the edge slider presses out the edge part on the front flange; during mold parting, the edge slider returns to its position via a nitrogen spring. Rear edge module: During mold closing, the push block on the rear edge pushes the rear edge slider forward towards the lower parting module; when the rear edge slider presses the rear flange onto the seat surface, the pressure block on the rear edge applies strong pressure to the rear edge slider; during mold parting, the rear edge slider returns to its position via a nitrogen spring.
Claims
1. A molding die for edge banding of an automobile seat basin, comprising an upper mold base and a lower mold base, characterized in that: Between the upper and lower mold bases are a clamping module, a pressing module, a front edge-sealing module, a left edge-sealing module, a right edge-sealing module, and a rear edge-sealing module. The clamping module is used to clamp the seat surface of the blank, the pressing module is used to press the arc-shaped part of the blank, the front edge-sealing module is used to seal the flanged part of the front side body, the left edge-sealing module is used to seal the flanged part of the left side body, the right edge-sealing module is used to seal the flanged part of the right side body, and the rear edge-sealing module is used to seal the flanged part of the rear side body. Edge binding; the clamping module consists of a lower clamping mold and an upper clamping mold; the structure of the lower clamping mold includes a parting lower module, which is fixed to the lower mold base by a lower template; the structure of the upper clamping mold includes a floating template, an upper template, and an upper pad stacked from top to bottom, the floating template being connected to the upper pad by a guide component, and the upper template, upper pad, and upper mold base being fixedly connected to each other, the floating template being provided with a parting upper module, which cooperates with the lower parting module to clamp the seat surface of the blank.
2. The edge-sealing mold for an automobile seat basin according to claim 1, characterized in that: The clamping module consists of a lower clamping mold and an upper clamping mold. The lower clamping mold comprises a positioning block, a slider, and a limiting seat. The positioning block is embedded in the arc-shaped side surface of the lower parting module. The slider is fixed to the lower template via a guide rail. A slider return spring is provided within the lower template. A horizontal limiting groove is provided on the inner end face of the slider corresponding to the lower parting module. A guide rod is provided within the limiting groove. A floating pressure block is fitted onto the outer end of the guide rod. The outer end of the floating pressure block engages with the inner end of the slider for limiting. A floating spring is provided within the inner end of the slider. The outer end face of the floating pressure block can fit against the outer surface of the positioning block. A limiting rod is provided on the side of the floating pressure block for limiting. The other end of the rod is slidably connected to the limiting groove of the guide rail; the outer end of the guide slide rod can be inserted into the positioning hole of the positioning block, and the floating pressure block cooperates with the positioning block to press the arc-shaped side body; the limiting seat is fixed on the lower template, and the limiting seat cooperates with the outer end of the slider to prevent the slider from leaving the guide rail; the structure of the pressing upper mold includes an upper pressure block, the upper pressure block is fixedly connected to the upper pad, the rounded corner of the parting upper module is provided with a clearance groove, the parting upper module is clearance-fitted with the upper pressure block through the clearance groove, and the upper pressure block is provided with a pressing groove on the pressing surface corresponding to the parting lower module, the pressing groove of the upper pressure block cooperates with the parting lower module to press the arc edge of the seat body.
3. The edge-sealing mold for an automobile seat basin according to claim 1 or 2, characterized in that: The front edge-wrapping modules are spaced apart along the length of the front side body. The front edge-wrapping modules consist of a lower edge-wrapping mold and an upper edge-wrapping mold. The structure of the lower edge-wrapping mold includes an edge-wrapping fixing block and an edge-wrapping slider. The edge-wrapping fixing block is fixedly connected to the lower template. The inner end face of the edge-wrapping fixing block corresponding to the parting lower module is inclined. A guide groove is provided on the inclined surface of the edge-wrapping fixing block. A guide protrusion is provided on the outer end inclined surface of the edge-wrapping slider. The guide protrusion is slidably connected to the guide groove. The edge-wrapping slider can move up and down and back and forth through the inclined surface of the edge-wrapping fixing block. A lifting spring for lifting the edge-wrapping slider is provided in the lower template. An edge-wrapping protrusion is provided on the inner end face of the edge-wrapping slider. The edge-wrapping protrusion is used to press the edge-wrapping part. The structure of the upper edge-wrapping mold includes an upper edge-wrapping pressing block. The upper edge-wrapping pressing block is fixedly connected to the upper pad plate. The upper edge-wrapping pressing block is used to push the edge-wrapping slider.
4. The edge-sealing mold for an automobile seat basin according to claim 3, characterized in that: The rear edge-wrapping module consists of a lower rear edge-wrapping mold and an upper rear edge-wrapping mold. The structure of the lower rear edge-wrapping mold includes a rear edge-wrapping slider, which is fixedly connected to the lower template via a guide rail. The lower template contains a return spring for the rear edge-wrapping slider. The inner end face of the rear edge-wrapping slider, corresponding to the lower parting module, is stepped. The stepped surface on the rear edge-wrapping slider is used to press the rear flange of the seat surface. The structure of the upper rear edge-wrapping mold includes an upper rear edge-wrapping pressure block, which is fixedly connected to the upper pad. The upper edge-wrapping pressure block is spaced apart along the length of the rear edge-wrapping slider. The upper edge-wrapping pressure block is clearance-fitted with the upper parting module and is used to press the rear edge-wrapping slider.