Surface floating stretching structure

Abstract

The utility model relates to a skin floating stretching structure which comprises a pair of stretching plates distributed in parallel, material hanging needles are installed on the stretching plates, and the two stretching plates are driven by an independent stretching mechanism to be close to or away from each other. A plurality of material hanging needles are mounted on the same stretching plate and are sequentially distributed in the long axis direction of the stretching plate, and each material hanging needle is driven by an independent floating stretching cylinder to horizontally move; the stretching mechanism comprises a bottom plate, a sliding rail seat, a stretching cylinder, a sliding rail and a fixing plate. Compared with the prior art, the skin stretching device has the advantages that the stretching mechanism is adopted to drive the stretching plate to achieve large-amplitude stretching and the floating stretching cylinder is adopted to drive the hanging needle to achieve small-amplitude floating stretching, so that the stretching amount can be adjusted according to different product characteristics, and the skin stretching device is suitable for most skin covering.

Description

Technical Field

[0001] The utility model relates to the field of epidermis treatment, in particular to an epidermis floating stretching structure. Background Art

[0002] With the increasing popularity of automobiles, lightweight, safety, comfort and environmental protection have become the main trends in the development of the current automobile industry. In order to increase the sense of comfort, some interior decorations will be covered with skins, such as automobile door panels, interior panels, instrument panels, etc. In general, during the production process of these covered parts, the covered skins are regularly stacked in a designated area. The skins are grabbed by the automatic feeding equipment and transported to the skin clamping device for fixing. Through the operation of the equipment, they are combined with the substrate under the action of the mold, and after post-processing, they become comfortable and beautiful automobile interior covering products.

[0003] At present, when performing epidermal coating, the epidermis needs to be stretched so that the epidermis can better fit the cavity of the product. However, since the shapes and sizes of the products to be coated are various, some are complex and some are simple, and the materials required for the products are also various, this leads to different stretching amounts for the epidermis. Even for the same product, if the materials of the epidermis used are different, the required stretching amounts will also be different. However, the existing stretching equipment has a fixed stretching amount each time, and it is difficult to adjust the stretching amount. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a skin floating stretching structure which is convenient for realizing different stretching amounts of the skin.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a skin floating stretching structure, the innovation of which is: including

[0006] A pair of parallel stretching plates, on which hanging needles are installed, and the two stretching plates are driven by an independent stretching mechanism to move closer to or away from each other;

[0007] There are several hanging needles installed on the same stretching plate, and they are distributed in sequence along the long axis direction of the stretching plate, and each of the hanging needles is driven by an independent floating stretching cylinder to achieve horizontal movement;

[0008] The stretching mechanism includes a base plate, a slide rail seat, a stretching cylinder, a slide rail and a fixed plate. There is a pair of slide rail seats, which are distributed in parallel on both sides of the base plate. Slide rails are respectively installed on the two slide rail seats. The fixed plate is located above the slide rails and below the stretching plate. A slider used in conjunction with the slide rails is installed at the bottom end of the fixed plate. The two sides of the fixed plate are respectively connected to the stretching plate through a connecting bracket. The fixed plate is driven by the stretching cylinder to move horizontally along the slide rail, thereby driving the stretching plate to move horizontally.

[0009] Furthermore, the material hanging needle passes through the stretching plate from top to bottom and is connected to the floating stretching cylinder. The stretching plate is also provided with a waist-shaped hole for the material hanging needle to pass through and move horizontally.

[0010] The floating stretching cylinder is installed at the bottom end of the stretching plate and is connected to the hanging needle through a transition connecting plate. There are two transition connecting plates, namely a first connecting plate and a second connecting plate fixed in sequence. The first connecting plate is an L-shaped combined plate formed by connecting a transverse plate and a longitudinal plate, wherein the longitudinal plate of the first connecting plate is directly connected to the piston rod of the floating stretching cylinder, the transverse plate of the first connecting plate is located beside the cylinder body of the floating stretching cylinder, and a guide assembly is also provided between the transverse plate of the first connecting plate and the cylinder body of the floating stretching cylinder, the second connecting plate is connected to the side of the transverse plate of the first connecting plate, and the upper side of the second connecting plate is connected to the hanging needle.

[0011] Furthermore, the guide assembly is as follows: a guide groove is opened on the outer wall of one side of the cylinder body of the floating stretching cylinder close to the transverse plate of the first connecting plate, a guide protrusion is also arranged in the guide groove, a guide slider placed in the guide groove is also connected to the side wall of the transverse plate of the first connecting plate, and a slot for inserting and moving the guide protrusion is opened on one side of the guide slider.

[0012] Furthermore, a threaded cylinder is provided between the hanging needle and the second connecting plate.

[0013] Furthermore, the hanging needle includes a spherical section and a cylindrical section connected up and down, and the diameter of the spherical section is greater than the diameter of the cylindrical section.

[0014] The advantage of the utility model is that for the stretching of the epidermis, a stretching mechanism is used to drive the stretching plate to achieve a large-scale stretching, and a floating stretching cylinder is used to drive the hanging needle to achieve a small-scale floating stretching. Therefore, the stretching amount can be adjusted according to different product characteristics, and it is suitable for most epidermis lamination.

[0015] The hanging needle adopts a combined structure of a spherical section and a cylindrical section, which makes it easier for the hanging needle to pass through the epidermis to fix the epidermis, as well as for the hanging needle to be separated from the epidermis.

[0016] As for the cooperation between the floating stretching cylinder and the hanging needle, firstly, the waist-shaped hole opened on the stretching plate is used to guide the moving path of the hanging needle to avoid the deviation of the hanging needle. Secondly, the guide component between the cylinder body of the floating stretching cylinder and the cross plate of the first connecting plate is used to guide the hanging needle to ensure the accuracy of the path of the hanging needle, so as to better realize the stretching of the epidermis.

[0017] By arranging a threaded cylinder between the hanging needle and the second connecting plate, the hanging needle can be driven up and down by the threaded cylinder, so that after the skin is in place, the hanging needle can be driven downward by the threaded cylinder to separate the hanging needle from the skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the skin floating tensile structure of the utility model.

[0019] Figure 2 It is a front view of the skin floating tensile structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the stretching mechanism of the utility model.

[0021] Figure 4 It is a front view of the stretching mechanism of the utility model.

[0022] Figure 5 It is a schematic diagram of the cooperation between the floating stretching cylinder and the hanging needle of the utility model.

[0023] Figure 6 It is a top view of the cooperation between the floating stretching cylinder and the hanging needle of the utility model.

[0024] Figure 7 It is a side view of the cooperation between the floating stretching cylinder and the hanging needle of the utility model. DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0026] like Figure 1-Figure 7 A skin floating tensile structure is shown, comprising

[0027] A pair of parallel stretching plates 2 are provided, on which a material hanging needle 3 is installed. Figure 5As shown in the schematic diagram, the material hanging needle 3 includes a spherical segment 31 and a cylindrical segment 32 connected up and down, and the diameter of the spherical segment 31 is larger than the diameter of the cylindrical segment 32. This size design is to better fix the epidermis 1 after the spherical segment 31 passes through the hole on the epidermis 1. The material hanging needle 3 adopts a combined structure of the spherical segment 31 and the cylindrical segment 32, and the arc shape of the surface of the spherical segment 31 is used to make it easier for the material hanging needle 3 to pass through the epidermis 1 to fix the epidermis, and to separate the material hanging needle 3 from the epidermis 1.

[0028] The distribution direction of the two stretching plates 2 is defined as the transverse direction, and the long axis direction of the stretching plate 2 is defined as the longitudinal direction.

[0029] The two stretching plates 2 are driven by an independent stretching mechanism to move closer to or farther from each other in the transverse direction. Figure 3 , Figure 4 As shown, the stretching mechanism includes a base plate 4, a slide rail seat 5, a stretching cylinder 6, a slide rail 7 and a fixed plate 8. The base plate 4 is a rectangular plate, and a plurality of waist-shaped holes 41 for fixing are opened on the base plate 4. There is a pair of slide rail seats 5, which are distributed in parallel on both sides of the long axis direction of the base plate 4, and the bottom ends of the slide rail seats 5 are fixed to the base plate 4 by the cooperation of bolts. Slide rails 7 are also installed on the upper end surfaces of the two slide rail seats 5, respectively. At the same time, positioning grooves for accommodating the positioning and installation of the slide rails 7 are also opened on the upper end surfaces of the slide rail seats 5, so as to realize the rapid positioning and installation of the slide rails 7 and the slide rail seats 5. The slide rails 7 extend in the transverse direction, and the fixed plate 8 is located above the slide rails 7 and below the stretching plate 2. The fixed plate 8 is also a rectangular plate, and the two bottom ends of the fixed plate 8 are fixed to the base plate 4. The sides are respectively installed with sliders 81 used in conjunction with the slide rails 7. The two sides of the fixed plate 8 are respectively connected to the stretching plate 2 through a connecting bracket 9. The connecting bracket 9 is a U-shaped bracket. The upper end of the connecting bracket 9 is fixed to the bottom end of the stretching plate 2 by bolts, and the lower end of the connecting bracket 9 is fixed to the upper end of the fixed plate 8 by bolts. The fixed plate 8 is driven by the stretching cylinder 6 to move horizontally along the slide rail 7, thereby driving the stretching plate 2 to translate. The stretching cylinder 6 is a cylinder, which is fixed to the upper end surface of the base plate 4 by bolts, and the stretching cylinder 6 is located between the two slide rail seats 5. A driving plate 61 is also connected to the piston rod of the stretching cylinder 6, and the driving plate 61 is fixed to the bottom end of the fixed plate 8 by bolts.

[0030] There are three hanging needles 3 installed on the same stretching plate 2, and the three hanging needles 3 are distributed on the stretching plate 2 in sequence along the long axis direction of the stretching plate 2, and each hanging needle 3 is driven by an independent floating stretching cylinder 10 to achieve horizontal movement.

[0031] The material hanging needle 3 passes through the stretching plate 2 from top to bottom and is connected to the floating stretching cylinder 10. The stretching plate 2 is also provided with a waist-shaped hole 21 for the material hanging needle 3 to pass through and move horizontally, and the waist-shaped hole 21 extends in the transverse direction. In addition to the transverse direction used in this embodiment, other extension directions may also be used for the extension direction of the waist-shaped hole 21, and the specific direction is set according to the position of the skin 1 that needs to be floated and stretched.

[0032] like Figure 5-Figure 7 As shown, the floating stretching cylinder 10 is a cylinder, which is installed at the bottom end of the stretching plate 2, and the cylinder body of the floating stretching cylinder 10 is fixed to the stretching plate 2 by bolts. The cylinder body of the floating stretching cylinder 10 is in the shape of a rectangular parallelepiped, and the floating stretching cylinder 10 is connected to the hanging needle 3 through a transition connecting plate. There are two transition connecting plates, namely a first connecting plate and a second connecting plate 13 fixed in sequence. The first connecting plate is an L-shaped combined plate formed by connecting a transverse plate 12 and a longitudinal plate 11, wherein the longitudinal plate 11 of the first connecting plate is directly connected to the piston rod of the floating stretching cylinder 10, and is driven by the floating stretching cylinder 10 to move horizontally along the transverse direction, the transverse plate 12 of the first connecting plate is located beside the cylinder body of the floating stretching cylinder 10, and a guide assembly is also provided between the transverse plate 12 of the first connecting plate and the cylinder body of the floating stretching cylinder 10.

[0033] The guide assembly is as follows: a guide groove 14 is provided on the outer wall of the cylinder body of the floating stretching cylinder 10 on one side near the horizontal plate 12 of the first connecting plate, the guide groove 14 extends in the horizontal direction, a guide protrusion 15 is also provided in the guide groove 14, the guide protrusion 15 is located in the middle of the guide groove 14, and the guide protrusion 15 also extends in the horizontal direction, and a guide slider 16 placed in the guide groove 14 is also connected to the side wall of the horizontal plate 12 of the first connecting plate, and a slot is provided on one side of the guide slider 16 for inserting and moving the guide protrusion 15, and the guidance of the horizontal plate 12 of the first connecting plate during translation is achieved through the cooperation between the slot and the guide protrusion 15. The guide assembly adopting this structural form uses the cylinder body of the floating stretching cylinder 10 for cooperation, thereby realizing the self-guiding of the floating stretching cylinder 10, without the need to rely on other components to complete the guidance, and the structure is more compact.

[0034] The second connecting plate 13 is connected to the side of the horizontal plate 12 of the first connecting plate, and is fixed to the horizontal plate 12 by bolts, and the upper side of the second connecting plate 13 is connected to the material hanging needle 3. As for the cooperation between the floating stretching cylinder 10 and the material hanging needle 3, firstly, the waist-shaped hole 21 opened on the stretching plate 2 is used to guide the moving path of the material hanging needle 3 to avoid the material hanging needle 3 from running off, and secondly, the guide component between the cylinder body of the floating stretching cylinder 10 and the horizontal plate 12 of the first connecting plate is used to guide the material hanging needle 3. The two guide designs are used to ensure the accuracy of the path of the material hanging needle 3, so as to better achieve the stretching of the epidermis 1.

[0035] Several pressure regulating valves 17 for controlling the air pressure of each floating stretching cylinder 10 are also arranged beside the stretching mechanism.

[0036] A threaded cylinder is also provided between the material hanging needle 3 and the second connecting plate 13. The threaded cylinder is directly fixed in the second connecting plate 13. The piston rod of the threaded cylinder is connected to the cylindrical section 32 of the material hanging needle 3 to drive the material hanging needle 3 to move up and down. For the threaded cylinder provided between the material hanging needle 3 and the second connecting plate 13, the material hanging needle 3 can be driven to move up and down by the threaded cylinder, so that after the skin 1 is in place, the material hanging needle 3 is driven downward by the threaded cylinder to separate the material hanging needle 3 from the skin 1 without manual separation.

[0037] Working principle: when stretching the epidermis 1, first, slits for the hanging needles 3 to pass through are opened in advance at various positions of the epidermis 1, and then the spherical section 31 of the hanging needle 3 is passed through the slit on the epidermis 1 to fix the epidermis 1. After the epidermis 1 is fixed, the stretching cylinders 6 on both sides are first actuated to pull the stretching plate 2 to move, thereby achieving the first stretching of the epidermis 1. After the stretching cylinders 6 are in place, the pressure regulating valve 17 controls the air pressure of each floating stretching cylinder 10 to achieve control of different stretching amounts at different positions, so as to correspond to different product characteristics, thereby achieving the stretching of the epidermis 1.

[0038] In the stretching process of the entire epidermis 1, the stretching mechanism is first used to drive the stretching plate 2 to achieve a large-scale primary stretching of the epidermis 1, and then the floating stretching cylinder 19 is used to drive the hanging needle 3 to achieve a small-scale floating secondary stretching of the epidermis 1. The stretching amount can be adjusted according to different product characteristics, which is suitable for most epidermis laminations.

[0039] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A skin floating tensile structure, characterized in that: include A pair of parallel stretching plates, on which hanging needles are installed, and the two stretching plates are driven by an independent stretching mechanism to move closer to or away from each other; There are several hanging needles installed on the same stretching plate, and they are distributed in sequence along the long axis direction of the stretching plate, and each of the hanging needles is driven by an independent floating stretching cylinder to achieve horizontal movement; The stretching mechanism includes a base plate, a slide rail seat, a stretching cylinder, a slide rail and a fixed plate. There is a pair of slide rail seats, which are distributed in parallel on both sides of the base plate. Slide rails are respectively installed on the two slide rail seats. The fixed plate is located above the slide rails and below the stretching plate. A slider used in conjunction with the slide rails is installed at the bottom end of the fixed plate. The two sides of the fixed plate are respectively connected to the stretching plate through a connecting bracket. The fixed plate is driven by the stretching cylinder to move horizontally along the slide rail, thereby driving the stretching plate to move horizontally.

2. The skin floating tensile structure according to claim 1, characterized in that: The material hanging needle passes through the stretching plate from top to bottom and is connected to the floating stretching cylinder. The stretching plate is also provided with a waist-shaped hole for the material hanging needle to pass through and move horizontally. The floating stretching cylinder is installed at the bottom end of the stretching plate and is connected to the hanging needle through a transition connecting plate. There are two transition connecting plates, namely a first connecting plate and a second connecting plate fixed in sequence. The first connecting plate is an L-shaped combined plate formed by connecting a transverse plate and a longitudinal plate, wherein the longitudinal plate of the first connecting plate is directly connected to the piston rod of the floating stretching cylinder, the transverse plate of the first connecting plate is located beside the cylinder body of the floating stretching cylinder, and a guide assembly is also provided between the transverse plate of the first connecting plate and the cylinder body of the floating stretching cylinder, the second connecting plate is connected to the side of the transverse plate of the first connecting plate, and the upper side of the second connecting plate is connected to the hanging needle.

3. The skin floating tensile structure according to claim 2, characterized in that: The guide assembly is as follows: a guide groove is opened on the outer wall of one side of the cylinder body of the floating stretching cylinder close to the transverse plate of the first connecting plate, a guide protrusion is also arranged in the guide groove, a guide slider placed in the guide groove is also connected to the side wall of the transverse plate of the first connecting plate, and a slot for inserting and moving the guide protrusion is opened on one side of the guide slider.

4. The skin floating tensile structure according to claim 2, characterized in that: A threaded cylinder is also arranged between the hanging needle and the second connecting plate.

5. The skin floating tensile structure according to claim 1, characterized in that: The hanging needle comprises a spherical section and a cylindrical section which are connected up and down, and the diameter of the spherical section is greater than the diameter of the cylindrical section.

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