A seamless push skiving method

Abstract

The application provides a seamless push covering method, and belongs to the technical field of automobile decoration part covering. The lower end of a covering skin is fixed below a decoration part body, and the upper end extends along the side wall of an arc-shaped through hole on the decoration part body. Then, the decoration part body is clamped and positioned by an upper die core and a lower die core. Subsequently, the covering skin extending above the decoration part body is pressed and combined on the upper end surface of the decoration part body at the middle position of the arc-shaped through hole by a center push block. Then, a plurality of left push blocks and right push blocks respectively or simultaneously push forward from close to the center push block to far away from the center push block in sequence, so as to press and combine the covering skin extending above the decoration part body on the upper end surface of the decoration part body at the positions on both sides of the arc-shaped through hole. During the covering process, the center push block, the plurality of left push blocks and the plurality of right push blocks are arranged in an arc line array, and always keep seamless adhesion between adjacent ones, so that the seamless push covering of the covering skin on the automobile decoration part is completed.

Description

Technical Field

[0001] This invention belongs to the field of automotive trim edge binding technology, and in particular relates to a seamless push edge binding method. Background Technology

[0002] With the rapid development of the automotive industry, consumers are increasingly demanding higher aesthetics and comfort from car interiors. Soft-touch interior trim, due to its pleasant tactile feel and premium visual appeal, is widely used in dashboards, sub-dashboards, door panels, and other areas. These trim pieces are typically manufactured by covering a plastic frame with a skin (such as PVC, TPU, or leather). The edge-wrapping process is crucial for ensuring product appearance quality. By folding back excess skin material and attaching it to the back or sides of the frame, no rough edges are exposed, resulting in a clean and aesthetically pleasing appearance.

[0003] To complement the car's styling, automotive trim parts often feature complex curved edges or corner structures. Traditionally, the finishing of these curved edges relies primarily on manual labor. During manual finishing, operators use tools such as needle-nose pliers to gradually pull, press, and adhere the surface material to the back of the frame along the curved edge. However, due to the curvature of the curved edge, it is difficult to maintain uniform tension during this manual process. To ensure a tight fit, operators often need to repeatedly press and pull, resulting in high labor intensity, low work efficiency, and difficulty in guaranteeing consistent quality. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a seamless pushing edge binding method to solve the problems in the prior art where operators often need to repeatedly press and pull during edge binding, resulting in high labor intensity, low work efficiency, and difficulty in ensuring consistent quality.

[0005] To achieve the above and other related objectives, the present invention provides a seamless pushing edge binding method, the seamless pushing edge binding method comprising: Preparation steps: Fix the lower end of the edge binding skin to the lower part of the upper surface of the decorative part body. An arc-shaped through hole is opened on one side of the decorative part body. The upper end of the edge binding skin extends along the side wall of the arc-shaped through hole to the top of the decorative part body. Clamping and positioning steps: The decorative part body is clamped and positioned by the upper mold core and the lower mold core; Center edge wrapping step: The center push block, several left push blocks and several right push blocks move as a whole. The center push block pushes and presses the edge wrapping skin that extends above the decorative part body to wrap around the upper surface of the decorative part body at the center of the arc-shaped through hole. Left-side edge binding steps: Several left-side push blocks move as a whole. The rightmost left-side push block pushes and presses the edge covering skin extending above the decorative part body onto the upper surface of the decorative part body at the corresponding position of the arc-shaped through hole. Then, the remaining left-side push blocks move as a whole. The rightmost left-side push block pushes and presses the edge covering skin extending above the decorative part body onto the upper surface of the decorative part body at the corresponding position of the arc-shaped through hole. Repeat the above steps until several left-side push blocks press and wrap the edge covering skin on the left side of the arc-shaped through hole onto the upper surface of the decorative part body. Right side edging steps: Several right side push blocks move as a whole. The leftmost right side push block pushes and presses the edge skin extending above the decorative part body onto the upper surface of the decorative part body at the corresponding position of the arc-shaped through hole. Then, the remaining right side push blocks move as a whole. The leftmost right side push block pushes and presses the edge skin extending above the decorative part body onto the upper surface of the decorative part body at the corresponding position of the arc-shaped through hole. Repeat the above steps until several right side push blocks press and wrap the edge skin on the right side of the arc-shaped through hole onto the upper surface of the decorative part body. In the center edge binding step, the left edge binding step, and the right edge binding step, the center push block, several left push blocks, and several right push blocks are arranged in an arc array, and the center push block, several left push blocks, and several right push blocks always maintain a seamless fit when pushed.

[0006] As an optional solution, in the clamping and positioning step, the upper mold core and the lower mold core are used to position the decorative part body, and the decorative part body is clamped and fixed between the upper mold core and the lower mold core.

[0007] As an optional solution, in the center edge wrapping step, the center push block is fixedly installed on the bottom support plate, and the bottom support plate is fixedly installed on the telescopic end of the first telescopic power source, and the telescopic direction of the first telescopic power source is consistent with the moving direction of the center push block. The first telescopic power source drives the bottom support plate to slide along the moving direction of the central push block, causing the central push block fixed on the bottom support plate to move toward the center area of ​​the arc-shaped through hole, so as to push and press the edge skin extending above the body of the decorative piece to wrap around the upper end surface at the center position of the body of the decorative piece.

[0008] As an optional solution, in the left-side edge-wrapping step, several left-side push blocks are correspondingly mounted on several left-side push support plates. The several left-side push support plates are stacked sequentially from bottom to top, and adjacent left-side push support plates are slidably connected. Each of the several left-side push support plates corresponds to one of the several left-side push blocks, and the uppermost left-side push support plate corresponds to the leftmost left-side push block. The lowermost left-side push support plate is slidably mounted on top of the bottom support plate. The surface where two adjacent left-side push blocks are in contact is the first surface. The moving direction of the left-side push block located on the left among two adjacent left-side push blocks is parallel to the lower boundary direction of the first surface. The surface where the rightmost left-side push block and the center push block are in contact is the second surface. The moving direction of the rightmost left-side push block is parallel to the lower boundary direction of the second surface.

[0009] As an optional solution, in the left-side edge wrapping step, several left-side pushing support plates are respectively installed on the telescopic ends of several second telescopic power sources, and several second telescopic power sources correspond one-to-one with several left-side pushing support plates. The telescopic end of the second telescopic power source is fixedly connected to the left push support plate, and the telescopic direction of the second telescopic power source is parallel to the sliding direction of the corresponding left push support plate. The upper left push support plate among the adjacent left push support plates is the upper left push support plate, and the lower left push support plate among the adjacent left push support plates is the lower left push support plate. The second telescopic power source that drives the upper left push support plate to slide is fixedly installed on the lower left push support plate; The second telescopic power source that drives the bottom left support plate to slide is fixedly installed on the bottom support plate.

[0010] As an optional solution, in the right-side edging step, several right-side push blocks are correspondingly mounted on several right-side push support plates. The several right-side push support plates are stacked sequentially from bottom to top, and adjacent right-side push support plates are slidably connected. Each of the several right-side push support plates corresponds to one of the several right-side push blocks, and the uppermost right-side push support plate corresponds to the rightmost right-side push block. The lowermost right-side push support plate is slidably mounted on top of the bottom support plate. The surface where two adjacent right-side push blocks are in contact is the third surface. The moving direction of the right-side push block in the two adjacent right-side push blocks is parallel to the lower boundary direction of the third surface. The surface where the leftmost right-side push block and the center push block are in contact is the fourth surface. The moving direction of the leftmost right-side push block is parallel to the lower boundary direction of the fourth surface.

[0011] As an optional solution, in the right-side edge wrapping step, several right-side pushing support plates are respectively installed on the telescopic ends of several third telescopic power sources, and several third telescopic power sources correspond one-to-one with several right-side pushing support plates. The telescopic end of the third telescopic power source is fixedly connected to the right push support plate, and the telescopic direction of the third telescopic power source is parallel to the sliding direction of the corresponding right push support plate. The upper right push support plate among the adjacent right push support plates is the upper right push support plate, and the lower right push support plate among the adjacent right push support plates is the lower right push support plate. The third telescopic power source that drives the upper right push support plate to slide is fixedly installed on the lower right push support plate; The third telescopic power source that drives the rightmost support plate at the bottom to slide is fixedly installed on the bottom support plate.

[0012] As an optional solution, the bottom surfaces of the central push block, several left push blocks, and several right push blocks are located on the same plane; The bottom surface of the central push block is higher than the top surface of the decorative part body, and the bottom surface of the central push block is perpendicular to the central axis of the arc-shaped through hole. The central push block, several left push blocks, and right push blocks press the edge skin extending above the decorative body onto the upper surface of the decorative body.

[0013] As an optional solution, the distance between the lower end face of the central push block and the upper end face of the decorative part body is less than or equal to the thickness of the edge wrapping skin.

[0014] As an optional solution, the central push block, several left push blocks, and several right push blocks can cover the upper surface of the edge covering skin pressed onto the body of the decorative piece.

[0015] As described above, the seamless push-edge binding method of the present invention has at least the following beneficial effects: 1. This invention achieves perfect coverage of complex curved edges by first positioning the central push block and then pushing it outwards in pairs or separately. Combined with the structural design that ensures a seamless fit between the central push block, several left push blocks, and several right push blocks, this invention ensures uniform stress on the edge covering material and avoids the accumulation and wrinkling of the skin caused by improper operation in traditional edge covering processes.

[0016] 2. The design of the present invention, in which the lower end face of the central push block, several left push blocks and several right push blocks are less than or equal to the upper end face of the decorative part body, ensures that the edge wrapping skin is compressed to a certain extent after being pressed in, resulting in an interference fit, thereby obtaining sufficient friction and clamping force, so that the edge wrapping skin is firmly attached to the upper surface of the decorative part body, without rebounding or loosening, thus ensuring the tightness and long-term reliability of the edge wrapping.

[0017] 3. The central push block, several left-side push blocks, and several right-side push blocks of this invention provide full coverage of the upper surface of the body of the decorative edge-wrapping piece to be pasted, ensuring that there are no blind spots on the upper surface of the body of the decorative edge-wrapping piece to be pasted, thus avoiding the problem of partial unwrapped or incomplete wrapping. Attached Figure Description

[0018] Figure 1 The diagram shown is a top view of the present invention. Figure 2 The diagram shown is a three-dimensional structural schematic of the present invention. Figure 3 The diagram shows the relevant structure of the arc-shaped through hole of the present invention. Figure 4 The diagram shows the structure of the central push block, the left push block, and the right push block of the present invention. Figure 5 The diagram shown is an exploded view of the underlying support plate and base plate of this invention. Figure 6 The diagram shows the structure of the decorative part body and the lower mold core of the present invention.

[0019] In the diagram: 101, central push block; 102, bottom support plate; 103, first telescopic power source; 104, base plate; 201. Left push block; 202. Left push support plate; 203. Second telescopic power source; 301. Right-side push block; 302. Right-side push support plate; 303. Third telescopic power source; 401. Lower mold core; 402. Upper mold core; 403. Decorative part body; 501. Arc-shaped through hole. Detailed Implementation

[0020] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0021] Please see Figures 1 to 6It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0022] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0023] Please see Figures 1 to 6 The present invention provides a seamless pushing edge binding method, the seamless pushing edge binding method comprising: Preparation steps: Fix the lower end of the edge binding skin to the lower part of the upper surface of the decorative part body 403. The method of fixing the edge binding skin is not limited here. It can be that glue is sprayed on the edge binding skin and it is fixed to the decorative part body 403 by adhesive bonding, or the edge binding skin can be fixed to the decorative part body 403 by welding. An arc-shaped through hole 501 is provided on one side of the decorative part body 403, that is, an arc-shaped notch is provided on the side wall of the decorative part body 403. The upper end of the edge-covering skin extends along the side wall of the arc-shaped through hole 501 to above the decorative part body 403; In this embodiment, in order to meet some engineering requirements, a boss can be provided at the arc-shaped through hole 501 on the decorative part body 403, and the upper end of the edge wrapping skin can be extended upward to cover the upper end of the boss. Clamping and positioning steps: The decorative part body 403 is clamped and positioned by the upper mold core 402 and the lower mold core 401; In the clamping and positioning step, a mold core boss can also be provided on the lower mold core 401. The inner wall of the mold core boss has the same shape as the side wall of the arc-shaped through hole 501. When the decorative part body 403 is placed on the lower mold core, the edge covering at the arc-shaped through hole 501 can be clamped between the arc-shaped through hole 501 and the mold core boss. At the same time, in order to avoid the mold core boss affecting the entire edge covering operation, the upper end face of the mold core boss is located below the upper boundary of the arc-shaped through hole 501. Since the distance of the edge covering extending above the decorative part body 403 is relatively short (generally within 10mm, and in this embodiment, the distance is 8mm), the edge covering extending above the decorative part body 403 can stand upright through its own rigidity. Central edge wrapping step: The central push block 101, several left push blocks 201 and several right push blocks 301 move as a whole. The central push block 101 pushes and presses the edge wrapping skin extending above the decorative body 403 onto the upper surface of the decorative body 403 at the middle position of the arc-shaped through hole 501. Left-side edge binding steps: Several left-side push blocks 201 move as a whole. The rightmost left-side push block 201 pushes and presses the edge binding skin extending above the decorative body 403 onto the upper surface of the decorative body 403 at the corresponding position of the arc-shaped through hole 501. Then, the remaining left-side push blocks 201 move as a whole. The rightmost left-side push block 201 pushes and presses the edge binding skin extending above the decorative body 403 onto the upper surface of the decorative body 403 at the corresponding position of the arc-shaped through hole 501. Repeat the above steps until several left-side push blocks 201 press and wrap all the edge binding skin on the left side of the arc-shaped through hole 501 onto the upper surface of the decorative body 403. Right side edging steps: Several right side push blocks 301 move as a whole. The leftmost right side push block 301 pushes and presses the edge skin extending above the decorative body 403 onto the upper surface of the decorative body 403 at the corresponding position of the arc-shaped through hole 501. Then, the remaining right side push blocks 301 move as a whole. The leftmost right side push block 301 pushes and presses the edge skin extending above the decorative body 403 onto the upper surface of the decorative body 403 at the corresponding position of the arc-shaped through hole 501. Repeat the above steps until several right side push blocks 301 press and wrap all the edge skin on the right side of the arc-shaped through hole 501 onto the upper surface of the decorative body 403. In the center edge wrapping step, the left edge wrapping step, and the right edge wrapping step, the center push block 101, the plurality of left push blocks 201, and the plurality of right push blocks 301 are arranged in an arc array, and the center push block 101, the plurality of left push blocks 201, and the plurality of right push blocks 301 always maintain a seamless fit when pushed. In order to ensure that the edge covering skin can fit snugly against the upper surface of the decorative part body 403, adhesive can be sprayed onto the edge covering skin beforehand. When the edge covering skin is bent to the upper surface of the decorative part body 403, it can be bonded to the upper surface of the decorative part body 403.

[0024] In this embodiment, during the edge-wrapping operation, the decorative part body 403 used for edge-wrapping is clamped and fixed between the upper mold core 402 and the lower mold core 401. The number of the left push block 201 and the right push block 301 is not limited here. Its main purpose is to cover the left and right edge-wrapping skins onto the decorative part body 403. We will use the number of the left push block 201 and the right push block 301 as two examples to illustrate this. During the edge-binding process, the center push block 101 is aligned with and extends into the upper part of the center area of ​​the arc-shaped through hole 501; Then the left push block 201, which is closer to the center push block 101, is aligned with and extends into the area above one side of the arc-shaped through hole 501. Subsequently, the left push block 201, which is farther from the center push block 101, is aligned with and extends into the area above the edge of one side of the arc-shaped through hole 501. Similarly, the right push block 301, which is closer to the center push block 101, is aligned with and extends into the area above the other side of the arc-shaped through hole 501. Then, the right push block 301, which is farther from the center push block 101, is aligned with and extends into the area above the other side edge of the arc-shaped through hole 501. In the above steps, the left push block 201 and the right push block 301 can be performed simultaneously or separately. When performed simultaneously, the center push block 101 first pushes and presses the edge covering skin extending above the decorative body 403 onto the upper surface of the decorative body 403 at the middle position of the arc-shaped through hole 501. Then, the left push block 201 and the right push block 301 close to the center push block 101 press the edge covering skin to wrap the edge. Finally, the left push block 201 and the right push block 301 away from the center push block 101 press the edge covering skin to wrap the edge, thereby completing the edge wrapping of the decorative body 403. When performed separately, the central push block 101 first pushes and presses the edge covering skin extending above the decorative body 403 onto the upper surface of the decorative body 403 at the center of the arc-shaped through hole 501. Then, the left push block 201 (or right push block 301) close to the central push block 101 presses the edge covering skin to complete the edge covering. Subsequently, the left push block 201 (or right push block 301) away from the central push block 101 presses the edge covering skin to complete the edge covering. After that, the right push block 301 (or left push block 201) close to the central push block 101 presses the edge covering skin to complete the edge covering. Subsequently, the right push block 301 (or left push block 201) away from the central push block 101 presses the edge covering skin to complete the edge covering, thereby completing the edge covering of the decorative body 403.

[0025] This invention achieves perfect coverage of complex curved edges by first positioning the central push block 101 and then pushing it outwards in pairs or separately. Combined with the structural design that ensures a seamless fit between the central push block 101, several left push blocks 201, and several right push blocks 301, this invention ensures that the edge covering material is evenly stressed, avoiding the accumulation and wrinkling of the skin caused by improper operation in traditional edge covering processes.

[0026] Please see Figure 1 and Figure 2 In the clamping and positioning step, the upper mold core 402 and the lower mold core 401 are used to position the decorative part body 403, and the decorative part body 403 is clamped and fixed between the upper mold core 402 and the lower mold core 401. Both the upper mold core 402 and the lower mold core 401 are mounted on the support frame.

[0027] In this embodiment, during the clamping and positioning step, the operator places the decorative part body 403 for edge binding on the lower mold core 401, and then lowers the upper mold core 402 and presses it onto the decorative part body 403, so that the decorative part body 403 is clamped between the upper mold core 402 and the lower mold core 401 (or alternatively, the decorative part body 403 for edge binding can be placed on the upper mold core 402, and then the lower mold core 401 can be raised, so that the decorative part body 403 is clamped between the upper mold core 402 and the lower mold core 401). The pressing method of the upper mold core 402 or the lower mold core 401 is not described here. The purpose of the mold is to press the upper mold core 402 or the lower mold core 401 onto the decorative part body 403. This pressing can be achieved by a hydraulic drive mechanism to lift and lower, or by other drive mechanisms. The lower end of the edge covering skin on the decorative part body 403 is pre-fixed to the lower end face of the decorative part body 403, so that the upper end of the edge covering skin naturally flips upward along the side wall of the arc-shaped through hole 501 and is suspended above the decorative part body 403. Then, the upper mold core 402 presses down to clamp and position the decorative part body 403, thus completing the clamping and positioning work.

[0028] The present invention uses an upper mold core 402 and a lower mold core 401 to clamp and position the decorative part body 403, ensuring that the decorative part body 403 will not shift or shake during the entire edge-wrapping process, providing a stable and uniform benchmark for subsequent edge-wrapping actions and ensuring the consistency of edge-wrapping position.

[0029] Please see Figure 1 and Figure 2 In the center edge wrapping step, the center push block 101 is fixedly installed on the bottom support plate 102, and the bottom support plate 102 is fixedly installed on the telescopic end of the first telescopic power source 103. The telescopic direction of the first telescopic power source 103 is consistent with the moving direction of the center push block 101. The first telescopic power source 103 is not limited here. Its function is to provide telescopic power, and it can be a hydraulic cylinder, a pneumatic cylinder, etc. The first telescopic power source 103 drives the bottom support plate 102 to slide along the moving direction of the central push block 101, causing the central push block 101 fixed on the bottom support plate 102 to move toward the central area of ​​the arc-shaped through hole 501, so as to push and press the edge skin extending above the decorative body 403 to wrap around the upper end surface at the center position of the decorative body 403.

[0030] In this embodiment, during the center edge wrapping step, when the bottom support plate 102 drives the center push block 101 to slide out a certain distance, specifically, the first telescopic power source 103 is activated so that the telescopic end of the first telescopic power source 103 pushes the bottom support plate 102 to slide out a certain distance.

[0031] Please see Figure 1 and Figure 4 In the center edge wrapping step, the fixed end of the first telescopic power source 103 is fixedly installed on the base plate 104. The base plate 104 is set on the support frame. The upper end surface of the base plate 104 is fixedly installed with a first slide rail. The sliding guide direction of the first slide rail is parallel to the telescopic direction of the first telescopic power source 103. The lower end face of the bottom support plate 102 is provided with a first sliding groove, which is slidably mounted on the first slide rail.

[0032] In this embodiment, during the center edge wrapping step, when the bottom support plate 102 drives the center push block 101 to slide out a certain distance, the first slide groove is slidably set on the first slide rail, which can assist in guiding the sliding of the bottom support plate 102.

[0033] The present invention employs the cooperation of a first slide rail and a first slide groove to provide a stable, low-friction and high-precision guide for the overall movement of the bottom support plate 102. This linear guide rail structure can withstand the radial load and overturning moment generated during the pushing process, ensuring that the bottom support plate 102 and the push block group above it remain stable during movement without deviation or jamming, thereby ensuring the accuracy of the final pushing position.

[0034] Please see Figure 1In the left-side edge-wrapping step, several left-side push blocks 201 are correspondingly installed on several left-side push support plates 202. The several left-side push support plates 202 are stacked sequentially from bottom to top, and adjacent left-side push support plates 202 are slidably connected. Several left-side push support plates 202 correspond one-to-one with several left-side push blocks 201, and the uppermost left-side push support plate 202 corresponds to the leftmost left-side push block 201. The lowermost left-side push support plate 202 is slidably installed above the bottom support plate 102. The surface where two adjacent left-side push blocks 201 are in contact is the first surface. The moving direction of the left-side push block 201 located on the left side of two adjacent left-side push blocks 201 is parallel to the lower boundary direction of the first surface. The surface where the rightmost left-side push block 201 and the center push block 101 are in contact is the second surface. The moving direction of the rightmost left-side push block 201 is parallel to the lower boundary direction of the second surface.

[0035] In this embodiment, the number of the left push support plate 202 is not limited. Its main purpose is to provide installation support for the left push block 201. We will use two left push support plates 202 as an example for illustration. During the pushing process, the right left push block 201 of the two left push blocks 201 slides and extends a certain distance along the lower boundary of the second surface under the action of the left push support plate 202 of the lower layer, while the left left push block 201 of the two left push blocks 201 slides and extends a certain distance along the lower boundary of the first surface under the action of the left push support plate 202 of the upper layer.

[0036] Please see Figure 1 and Figure 2 In the left-side edge-wrapping step, several left-side push support plates 202 are respectively installed on the telescopic ends of several second telescopic power sources 203, and several second telescopic power sources 203 correspond one-to-one with several left-side push support plates 202; The second telescopic power source 203 is not limited here. Its function is to provide telescopic power, and it can be a hydraulic cylinder, air cylinder, etc. The telescopic end of the second telescopic power source 203 is fixedly connected to the left push support plate 202, and the telescopic direction of the second telescopic power source 203 is parallel to the sliding direction of its corresponding left push support plate 202. The upper left push support plate 202 among the adjacent left push support plates 202 is the upper left push support plate 202, and the lower left push support plate 202 among the adjacent left push support plates 202 is the lower left push support plate 202. The second telescopic power source 203, which drives the upper left push support plate 202 to slide, is fixedly installed on the lower left push support plate 202; The second telescopic power source 203, which drives the bottom left push support plate 202 to slide, is fixedly installed on the bottom support plate 102.

[0037] In this embodiment, the number of the left push support plates 202 is not limited. Their main purpose is to provide installation support for the left push block 201. We will use two left push support plates 202 as an example (the upper left push support plate 202 and the lower left push support plate 202). During the pushing process, when the right left push block 201 of the two left push blocks 201 slides and extends a certain distance along the direction of the lower boundary of the second surface under the action of the lower left push support plate 202, specifically, the second telescopic power source 203 that drives the lower left push support plate 202 to slide and extend a certain distance is activated, so that the telescopic end of the second telescopic power source 203 pushes the lower left push support plate 202 to slide and extend a certain distance. When the left left push block 201 of the two left push blocks 201 slides and extends a certain distance along the direction of the lower boundary of the first surface under the action of the upper left push support plate 202, specifically, the second telescopic power source 203 that drives the upper left push support plate 202 to slide and extend a certain distance is activated, so that the telescopic end of the second telescopic power source 203 pushes the upper left push support plate 202 to slide and extend a certain distance.

[0038] Please see Figure 1 In the left-side edge-wrapping step, a second slide rail is fixedly installed on the upper end face of the lower left-side push support plate 202, and a second slide groove is opened on the lower end face of the upper left-side push support plate 202. The sliding guide direction of the second slide rail fixedly installed on the lower left-side push support plate 202 is parallel to the extension direction of the extension end of the second telescopic power source 203 fixedly connected to the upper left-side push support plate 202, and the second slide groove opened on the lower left-side push support plate 202 is slidably arranged on the second slide rail fixedly installed on the upper left-side push support plate 202. A third sliding groove is provided on the lower end face of the bottom left push support plate 202, and a third slide rail is fixedly installed on the upper end face of the bottom support plate 102. The sliding guide direction of the third slide rail fixedly installed on the bottom support plate 102 is parallel to the extension direction of the extension end of the second telescopic power source 203 fixedly connected to the bottom left push support plate 202, and the third sliding groove provided on the bottom left push support plate 202 is slidably disposed on the third slide rail fixedly installed on the bottom support plate 102.

[0039] In this embodiment, the number of the left push support plates 202 is not limited. Their main purpose is to provide installation support for the left push block 201. We will use two left push support plates 202 as an example (the upper left push support plate 202 and the lower left push support plate 202). During the pushing process, when the right left push block 201 of the two left push blocks 201 slides out a certain distance along the lower boundary of the second surface under the action of the lower left push support plate 202, the third sliding groove opened on the lower end face of the lower left push support plate 202 slides on the third slide rail fixedly installed on the upper end face of the bottom support plate 102, which can assist in guiding the sliding of the lower left push support plate 202. At this time, the left push block 201 of the two left push blocks 201 also slides together. When the left push block 201 of the two left push blocks 201 slides out a certain distance along the lower boundary of the first surface under the action of the upper left push support plate 202, the second sliding groove opened on the lower end face of the upper left push support plate 202 slides on the second slide rail fixedly installed on the upper end face of the lower left push support plate 202, which can assist in guiding the sliding of the upper left push support plate 202.

[0040] Please see Figure 1 In the right-side edge-wrapping step, several right-side push blocks 301 are correspondingly installed on several right-side push support plates 302. The several right-side push support plates 302 are stacked sequentially from bottom to top, and adjacent right-side push support plates 302 are slidably connected. Several right-side push support plates 302 correspond one-to-one with several right-side push blocks 301, and the uppermost right-side push support plate 302 corresponds to the rightmost right-side push block 301. The lowermost right-side push support plate 302 is slidably installed above the bottom support plate 102. The surface where two adjacent right-side push blocks 301 are in contact is the third surface. The moving direction of the right-side push block 301 in the two adjacent right-side push blocks 301 is parallel to the lower boundary direction of the third surface. The surface where the leftmost right-side push block 301 and the center push block 101 are in contact is the fourth surface. The moving direction of the leftmost right-side push block 301 is parallel to the lower boundary direction of the fourth surface.

[0041] In this embodiment, the number of right-side push support plates 302 is not limited. Their main purpose is to provide installation support for the right-side push block 301. We will use two right-side push support plates 302 as an example for illustration. During the pushing process, the left right push block 301 of the two right push blocks 301 slides and extends a certain distance along the lower boundary of the fourth surface under the action of the right push support plate 302 of the lower layer, and the right right push block 301 of the two right push blocks 301 slides and extends a certain distance along the lower boundary of the third surface under the action of the right push support plate 302 of the upper layer.

[0042] Please see Figure 1 and Figure 2 In the right-side edge-wrapping step, several right-side push support plates 302 are respectively installed on the telescopic ends of several third telescopic power sources 303, and several third telescopic power sources 303 correspond one-to-one with several right-side push support plates 302. The third telescopic power source 303 is not limited here; its function is to provide telescopic power, and it can be a hydraulic cylinder, a pneumatic cylinder, etc. The telescopic end of the third telescopic power source 303 is fixedly connected to the right push support plate 302, and the telescopic direction of the third telescopic power source 303 is parallel to the sliding direction of its corresponding right push support plate 302. The upper right push support plate 302 among the adjacent right push support plates 302 is the upper right push support plate 302, and the lower right push support plate 302 among the adjacent right push support plates 302 is the lower right push support plate 302. The third telescopic power source 303, which drives the upper right push support plate 302 to slide, is fixedly installed on the lower right push support plate 302; The third telescopic power source 303, which drives the bottom right push support plate 302 to slide, is fixedly installed on the bottom support plate 102.

[0043] In this embodiment, the number of right-side push support plates 302 is not limited. Their main purpose is to provide installation support for the right-side push block 301. We will use two right-side push support plates 302 as examples (the upper right-side push support plate 302 and the lower right-side push support plate 302). During the pushing process, when the left right push block 301 of the two right push blocks 301 slides out a certain distance along the lower boundary of the fourth surface under the action of the lower right push support plate 302, specifically, the third telescopic power source 303 that drives the lower right push support plate 302 to slide out a certain distance is activated, causing the telescopic end of the third telescopic power source 303 to push the lower right push support plate 302 to slide out a certain distance. When the right right push block 301 of the two right push blocks 301 slides out a certain distance along the lower boundary of the third surface under the action of the upper right push support plate 302, specifically, the third telescopic power source 303 that drives the upper right push support plate 302 to slide out a certain distance is activated, causing the telescopic end of the third telescopic power source 303 to push the upper right push support plate 302 to slide out a certain distance.

[0044] Please see Figure 1 In the right-side edging step, a fourth slide rail is fixedly installed on the upper end face of the lower right-side push support plate 302, and a fourth slide groove is opened on the lower end face of the upper right-side push support plate 302. The sliding guide direction of the fourth slide rail fixedly installed on the lower right-side push support plate 302 is parallel to the extension direction of the extension end of the third telescopic power source 303 fixedly connected to the upper right-side push support plate 302, and the fourth slide groove opened on the lower right-side push support plate 302 is slidably arranged on the fourth slide rail fixedly installed on the upper right-side push support plate 302. A fifth sliding groove is provided on the lower end face of the bottom right push support plate 302, and a fifth sliding rail is fixedly installed on the upper end face of the bottom support plate 102. The sliding guide direction of the fifth sliding rail fixedly installed on the bottom support plate 102 is parallel to the telescopic direction of the telescopic end of the third telescopic power source 303 fixedly connected to the bottom right push support plate 302, and the fifth sliding groove provided on the bottom right push support plate 302 is slidably disposed on the fifth sliding rail fixedly installed on the bottom support plate 102.

[0045] In this embodiment, the number of right-side push support plates 302 is not limited. Their main purpose is to provide installation support for the right-side push block 301. We will use two right-side push support plates 302 as examples (the upper right-side push support plate 302 and the lower right-side push support plate 302). During the pushing process, when the left right push block 301 of the two right push blocks 301 slides out a certain distance along the lower boundary of the fourth surface under the drive of the lower right push support plate 302, the fifth sliding groove opened on the lower end face of the lower right push support plate 302 slides on the fifth slide rail fixedly installed on the upper end face of the bottom support plate 102, which can provide auxiliary guidance for the lower right push support plate 302. At this time, the left push block 201 of the two right push blocks 301 will also slide together. When the right right push block 301 of the two right push blocks 301 slides out a certain distance along the lower boundary of the third surface under the drive of the upper right push support plate 302, the fourth sliding groove opened on the lower end face of the upper right push support plate 302 slides on the fourth slide rail fixedly installed on the upper end face of the right push support plate 302 of the first floor, which can provide auxiliary guidance for the upper right push support plate 302.

[0046] The present invention has constructed a plurality of right-side push blocks 301 with the same upper and lower stacked slide rail and slide groove design as the plurality of left-side push blocks 201, which ensures that the plurality of right-side push blocks 301 have the same rigidity and guiding accuracy during telescopic movement. This makes the performance of the left and right sides of the entire push structure completely symmetrical and reliable, and together ensures that the left-side push blocks 201 and right-side push blocks 301 on both sides of the central push block 101 can still maintain a seamless fit after movement.

[0047] Please see Figure 1 and Figure 4 The bottom surfaces of the central push block 101, several left push blocks 201, and several right push blocks 301 are located on the same plane; The bottom surface of the central push block 101 is higher than the upper surface of the decorative body 403, and the bottom surface of the central push block 101 is perpendicular to the central axis of the arc-shaped through hole 501. The central push block 101, several left push blocks 201 and right push blocks 301 press the edge skin extending above the decorative body 403 onto the upper surface of the decorative body 403.

[0048] In this embodiment, the bottom surfaces of the center push block 101, the several left push blocks 201 and the several right push blocks 301 are restricted to the same plane, so that the bottom surfaces of the center push block 101, the several left push blocks 201 and the several right push blocks 301 are strictly in the same plane.

[0049] Please see Figure 1 and Figure 2 The distance between the lower end face of the central push block 101 and the upper end face of the decorative body 403 is less than or equal to the thickness of the edge wrapping skin.

[0050] In this embodiment, the thickness of the edge covering skin can be selected as 1 mm, the edge covering skin is made of elastic material, and the distance between the lower end face of the central push block 101 and the upper end face of the decorative body 403 can be selected as 0.7 mm. During the edge covering process, the lower end faces of the central push block 101, the left push blocks 201 and the right push blocks 301 form a compression space with the upper end face of the decorative body 403, thus tightly pressing the edge covering skin onto the upper surface of the decorative body 403.

[0051] The design of the present invention, in which the lower end face of the central push block 101, several left push blocks 201 and several right push blocks 301 are less than the upper end face of the decorative body 403, ensures that the edge wrapping skin is compressed to a certain extent after being pressed in, resulting in an interference fit, thereby obtaining sufficient friction and clamping force, so that the edge wrapping skin is firmly attached to the upper surface of the decorative body 403 without rebounding or loosening, thus ensuring the tightness and long-term reliability of the edge wrapping.

[0052] Please see Figure 1 and Figure 2 The central push block 101, several left push blocks 201 and several right push blocks 301 can cover the upper surface of the edge skin pressed on the decorative body 403.

[0053] In this embodiment, when the central push block 101, several left push blocks 201 and several right push blocks 301 are pushed forward to the edge-wrapping skin completion, the lower end surfaces of the central push block 101, several left push blocks 201 and several right push blocks 301 completely cover the upper end surface of the decorative body 403 to be pasted with the edge-wrapping skin, so that the upper end surface of the decorative body 403 to be pasted with the edge-wrapping skin is completely pressed onto the edge-wrapping skin.

[0054] The present invention features a central push block 101, several left-side push blocks 201, and several right-side push blocks 301 that provide full coverage of the upper surface of the body 403 of the edge-wrapping decorative piece to be pasted. This design ensures that there are no blind spots on the upper surface of the body 403 of the edge-wrapping decorative piece to be pasted, thus avoiding the problem of partial unwrapped or incomplete wrapping.

[0055] In this embodiment, the first, second, third, and fourth surfaces can also be configured to be parallel to the center line of the arc-shaped through hole 501, and the first, second, third, and fourth surfaces can be arranged in an arc-shaped array around the center line of the arc-shaped through hole 501.

[0056] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A seamless pushing edge binding method, characterized in that, The seamless push-edge binding method includes: Preparation steps: Fix the lower end of the edge binding skin to the lower part of the upper surface of the decorative part body. An arc-shaped through hole is opened on one side of the decorative part body. The upper end of the edge binding skin extends along the side wall of the arc-shaped through hole to the top of the decorative part body. Clamping and positioning steps: The decorative part body is clamped and positioned by the upper mold core and the lower mold core; Center edge wrapping step: The center push block, several left push blocks and several right push blocks move as a whole. The center push block pushes and presses the edge wrapping skin that extends above the decorative part body to wrap around the upper surface of the decorative part body at the center of the arc-shaped through hole. Left-side edge binding steps: Several left-side push blocks move as a whole. The rightmost left-side push block pushes and presses the edge covering skin extending above the decorative part body onto the upper surface of the decorative part body at the corresponding position of the arc-shaped through hole. Then, the remaining left-side push blocks move as a whole. The rightmost left-side push block pushes and presses the edge covering skin extending above the decorative part body onto the upper surface of the decorative part body at the corresponding position of the arc-shaped through hole. Repeat the above steps until several left-side push blocks press and wrap the edge covering skin on the left side of the arc-shaped through hole onto the upper surface of the decorative part body. Right side edging steps: Several right side push blocks move as a whole. The leftmost right side push block pushes and presses the edge skin extending above the decorative part body onto the upper surface of the decorative part body at the corresponding position of the arc-shaped through hole. Then, the remaining right side push blocks move as a whole. The leftmost right side push block pushes and presses the edge skin extending above the decorative part body onto the upper surface of the decorative part body at the corresponding position of the arc-shaped through hole. Repeat the above steps until several right side push blocks press and wrap the edge skin on the right side of the arc-shaped through hole onto the upper surface of the decorative part body. In the center edge binding step, the left edge binding step, and the right edge binding step, the center push block, several left push blocks, and several right push blocks are arranged in an arc array, and the center push block, several left push blocks, and several right push blocks always maintain a seamless fit when pushed.

2. The seamless pushing and binding method according to claim 1, characterized in that: In the clamping and positioning step, the upper mold core and the lower mold core are used to position the decorative part body and clamp and fix the decorative part body between the upper mold core and the lower mold core.

3. The seamless pushing and binding method according to claim 1, characterized in that: In the center edge wrapping step, the center push block is fixedly installed on the bottom support plate, and the bottom support plate is fixedly installed on the telescopic end of the first telescopic power source. The telescopic direction of the first telescopic power source is consistent with the moving direction of the center push block. The first telescopic power source drives the bottom support plate to slide along the moving direction of the central push block, causing the central push block fixed on the bottom support plate to move toward the center area of ​​the arc-shaped through hole, so as to push and press the edge skin extending above the body of the decorative piece to wrap around the upper end surface at the center position of the body of the decorative piece.

4. The seamless pushing and binding method according to claim 3, characterized in that: In the left-side edge-wrapping step, several left-side push blocks are correspondingly mounted on several left-side push support plates. The several left-side push support plates are stacked sequentially from bottom to top, and adjacent left-side push support plates are slidably connected. Each of the several left-side push support plates corresponds to one of the several left-side push blocks, and the uppermost left-side push support plate corresponds to the leftmost left-side push block. The lowermost left-side push support plate is slidably mounted on top of the bottom support plate. The surface where two adjacent left-side push blocks are in contact is the first surface. The moving direction of the left-side push block located on the left of the two adjacent left-side push blocks is parallel to the lower boundary direction of the first surface. The surface where the rightmost left-side push block and the center push block are in contact is the second surface. The moving direction of the rightmost left-side push block is parallel to the lower boundary direction of the second surface.

5. The seamless pushing and binding method according to claim 4, characterized in that: In the left-side edge-wrapping step, several left-side push support plates are respectively installed on the telescopic ends of several second telescopic power sources, and several second telescopic power sources correspond one-to-one with several left-side push support plates. The telescopic end of the second telescopic power source is fixedly connected to the left push support plate, and the telescopic direction of the second telescopic power source is parallel to the sliding direction of the corresponding left push support plate. The upper left push support plate among the adjacent left push support plates is the upper left push support plate, and the lower left push support plate among the adjacent left push support plates is the lower left push support plate. The second telescopic power source that drives the upper left push support plate to slide is fixedly installed on the lower left push support plate; The second telescopic power source that drives the bottom left support plate to slide is fixedly installed on the bottom support plate.

6. The seamless pushing and binding method according to claim 3, characterized in that: In the right-side edging step, several right-side push blocks are correspondingly mounted on several right-side push support plates. The several right-side push support plates are stacked sequentially from bottom to top, and adjacent right-side push support plates are slidably connected. Each of the several right-side push support plates corresponds to one of the several right-side push blocks, and the uppermost right-side push support plate corresponds to the rightmost right-side push block. The lowermost right-side push support plate is slidably mounted on top of the bottom support plate. The surface where two adjacent right-side push blocks are in contact is the third surface. The moving direction of the right-side push block in the two adjacent right-side push blocks is parallel to the lower boundary direction of the third surface. The surface where the leftmost right-side push block and the center push block are in contact is the fourth surface. The moving direction of the leftmost right-side push block is parallel to the lower boundary direction of the fourth surface.

7. A seamless pushing and binding method according to claim 6, characterized in that: In the right-side edge-wrapping step, several right-side push support plates are installed on the telescopic ends of several third telescopic power sources, and the several third telescopic power sources correspond one-to-one with the several right-side push support plates. The telescopic end of the third telescopic power source is fixedly connected to the right push support plate, and the telescopic direction of the third telescopic power source is parallel to the sliding direction of the corresponding right push support plate. The upper right push support plate among the adjacent right push support plates is the upper right push support plate, and the lower right push support plate among the adjacent right push support plates is the lower right push support plate. The third telescopic power source that drives the upper right push support plate to slide is fixedly installed on the lower right push support plate; The third telescopic power source that drives the rightmost support plate at the bottom to slide is fixedly installed on the bottom support plate.

8. The seamless pushing and binding method according to claim 1, characterized in that: The bottom surfaces of the central push block, several left push blocks, and several right push blocks are located on the same plane; The bottom surface of the central push block is higher than the top surface of the decorative part body, and the bottom surface of the central push block is perpendicular to the central axis of the arc-shaped through hole. The central push block, several left push blocks, and right push blocks press the edge skin extending above the decorative body onto the upper surface of the decorative body.

9. The seamless pushing and binding method according to claim 1, characterized in that: The distance between the lower end face of the central push block and the upper end face of the decorative part body is less than or equal to the thickness of the edge wrapping skin.

10. A seamless pushing edge binding method according to claim 1, characterized in that: The central push block, several left-side push blocks, and several right-side push blocks can cover the upper surface of the edge-sealing skin pressed onto the body of the decorative piece.

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