Artificial leather rolling and pre-tightening device

Abstract

The utility model relates to the technical field of artificial leather winding auxiliary machinery, in particular to an artificial leather winding pre-tightening device which comprises a carrying table with a carrying surface and a pressing roller, the pressing roller is arranged on the carrying table and can rotate, and the pre-tightening device further comprises a lifting mechanism used for vertically lifting the pressing roller. The lifting mechanism comprises a movable component and a driving part for driving the movable component to move; the top face of the movable component comprises a supporting face and a guiding face which are sequentially connected in the first direction, the guiding face is constructed to be an inclined face gradually inclining downwards towards the side away from the supporting face, the lowest end of the guiding face is lower than the carrying face, and the supporting face is a plane, is higher than the carrying face and is connected with the highest end of the guiding face. The first direction is perpendicular to the axial direction of the pressing roller; in this way, even if the driving part breaks down and loses efficacy, the movable component cannot move in the first direction, so that the pressing roller is still kept in a supported state by the movable component, and the hands of normal work are not prone to being crushed.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial leather rolling auxiliary machinery, in particular to an artificial leather rolling pre-tightening device. Background Art

[0002] After the artificial leather is completed, it is usually rolled up using a rolling device to facilitate subsequent packaging and transportation.

[0003] Among them, during the winding process of the artificial leather, in order to make the artificial leather able to be wound more tightly on the winding roller, a pre-tightening device is generally provided upstream of the winding roller to increase the resistance of the artificial leather when the winding roller winds up the artificial leather, thereby making the artificial leather able to be tightened on the winding roller.

[0004] The commonly used pre-tightening device is mainly composed of a carrier (in some scenarios, the carrier is composed of a rotatable roller) and a pressure roller. The artificial leather is laid flat on the carrier and moves along the carrier when winding. The pressure roller presses the artificial leather vertically downward on the carrier under the drive of a spring and its own weight, thereby increasing the resistance of the artificial leather when it moves forward.

[0005] This pre-tightening device initially needs to overcome the elastic force of the spring and the deadweight of the pressing roller to lift the pressing roller upwards for a certain distance relative to the carrier, so that the artificial leather can pass between the pressing roller and the carrier; after the artificial leather passes through, the pressing roller can be released.

[0006] The lifting action of the pressure roller is generally performed by people lifting it by hand or by setting up a cylinder to lift the pressure roller vertically. For people lifting it by hand, the labor intensity is obviously very high; and for the cylinder for vertical lifting, there are certain safety hazards. That is, if the artificial leather passes under the pressure roller and the cylinder fails such as decompression, the vertical lifting force on the pressure roller will disappear, and the pressure roller will be directly pressed down, which will cause the risk of crushing people's hands. Therefore, there is room for improvement. Utility Model Content

[0007] In order to solve at least one of the technical problems mentioned in the background technology, the purpose of the utility model is to provide a rolling and pre-tightening device for artificial leather.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A pre-tensioning device for winding up artificial leather comprises a carrier with a carrying surface and a pressure roller, wherein the pressure roller is arranged on the carrier and can rotate, and the pressure roller is used to press the artificial leather down onto the carrying surface under the action of its own weight, or under the combined action of its own weight and the elastic force provided by an elastic mechanism, and the pre-tensioning device also comprises a lifting mechanism for vertically lifting the pressure roller, wherein the lifting mechanism comprises a movable component capable of moving along a first direction relative to the carrier and a driving member driving the movable component to move along the first direction, and the pressure roller is at least partially located in the moving path of the movable component; the top surface of the movable component comprises a supporting surface and a guiding surface which are connected in sequence along the first direction, and the guiding surface is constructed as an inclined surface which gradually tilts downward toward a side away from the supporting surface, and the lowest end of the guide surface is lower than the carrying surface, and the supporting surface is a plane and is higher than the carrying surface and is connected with the highest end of the guide surface; the first direction is perpendicular to the axial direction of the pressure roller.

[0010] As an optional embodiment of the utility model, a slide groove extending along the first direction is provided on the carrying surface, and the movable component is slidably arranged in the slide groove; the supporting surface is higher than the notch of the slide groove, and the lowest end of the guide surface is lower than the notch of the slide groove.

[0011] As an optional embodiment of the utility model, the driving member is arranged at the bottom of the carrier; a movable groove extending along the first direction and connected to the bottom of the slide groove is opened on the bottom surface of the carrier, and the movable component includes an extension part, which is slidably arranged in the movable groove and passes through the lower part of the movable groove to connect with the driving member.

[0012] As an optional implementation of the utility model, the driving member includes one of a pneumatic cylinder, a hydraulic cylinder, and an electric cylinder.

[0013] As an optional embodiment of the utility model, the lifting mechanism includes two groups, the two groups of lifting mechanisms are arranged relatively along a second direction, and the second direction is perpendicular to the first direction; the inner sides of the movable components of the two lifting mechanisms are provided with limiting components; the artificial leather is limited between the two limiting components in the second direction.

[0014] As an optional implementation of the present invention, the limiting component can be moved and adjusted relative to the movable component along the second direction to adjust the relative distance between the two limiting components in the second direction.

[0015] As an optional embodiment of the utility model, an adjustment mechanism is provided between the limiting member and the movable member, and the adjustment mechanism includes a plurality of guide rods movably arranged on the movable member along the second direction, and one end of the guide rods is connected to the limiting member; one of the guide rods is a screw rod, and the screw rod is threadedly connected to the movable member, and one end of the screw rod is rotatably connected to the limiting member.

[0016] As an optional embodiment of the utility model, the limiting member includes a side limiting plate extending along the first direction, and / or the limiting member includes a side limiting plate extending along the first direction and an upper limiting plate arranged on the top of the side limiting plate and extending along the first direction, and the upper limiting plate and the side limiting plate are not higher than the supporting surface.

[0017] As an optional embodiment of the utility model, the pressure roller presses the artificial leather down onto the carrier surface under the combined action of its own weight and the elastic force provided by an elastic mechanism; the elastic mechanism includes a spring, a slide rail, and a slider; the slide rail is fixed on the carrier, the slider is vertically slidably arranged on the slide rail, and the spring is arranged between the slide rail and the slider for applying a downward elastic force to the slider; the end of the pressure roller is rotatably connected to the slider.

[0018] As an optional implementation of the utility model, a rotatable guide roller is provided at the front end of the carrier.

[0019] Compared with the prior art, the advantages of adopting this solution are:

[0020] In the present solution, a movable component having a supporting surface and a guiding surface is provided as the main lifting component for lifting the pressure roller. When the pressure roller needs to be lifted, the movable component is driven by a driving member to move in a first direction, so that the guiding surface first contacts the pressure roller. Since the guiding surface is an inclined surface, as the guiding surface continues to move forward, the pressure roller will be continuously lifted upward by the guiding surface, and finally the pressure roller moves to the supporting surface and is supported by the supporting surface, thereby completing the lifting action.

[0021] It can be seen that in this solution, the pressure roller is supported by the movable component, and the force applied by the driving component to the movable component is along the first direction, perpendicular to the downward pressure direction of the pressure roller. In this way, even if the driving component fails, the movable component will not move in the first direction, so that the pressure roller is still held up by the movable component, which is not easy to injure the hands of people working normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of the utility model in which the pressing roller is in a raised state;

[0023] Figure 2 It is a structural schematic diagram of the utility model when the pressing roller is separated from the movable component;

[0024] Figure 3 This is a schematic diagram of the bottom structure of the utility model;

[0025] Figure 4 It is an axial cross-sectional view of the pressure roller of the utility model in a lifted state at the position of the pressure roller;

[0026] Figure 5It is a structural diagram of the active component. DETAILED DESCRIPTION

[0027] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0028] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operate in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0029] See also Figure 1-5 As shown, this embodiment provides an artificial leather rolling and pre-tensioning device, which is arranged upstream of a rolling device (not shown in the figure); the rolling device is mainly used to realize the rolling of artificial leather, and mainly includes a motor and a winding roller, one end of the artificial leather is fixed on the winding roller, and the motor drives the winding roller to rotate so that the winding roller rolls up the artificial leather.

[0030] like Figure 1 As shown, the artificial leather rolling and pre-tightening device provided in this embodiment includes a carrier 1 and a pressing roller 2. The carrier 1 is horizontally arranged, and its top surface constitutes a carrier surface 11 for flattening the artificial leather.

[0031] The pressing roller 2 is arranged on the carrier 1 and can rotate. The pressing roller 2 is used to press the artificial leather down onto the carrier surface 11 under the action of its own weight.

[0032] Alternatively, an elastic mechanism is provided to apply downward elastic force to the pressing roller 2, so that the pressing roller 2 presses the artificial leather down onto the carrier surface 11 under the combined effect of its own weight and the elastic force provided by the elastic mechanism.

[0033] like Figure 1 As shown, the elastic mechanism is provided in two groups, which are respectively provided on both sides of the carrier 1. The structures of the two elastic mechanisms are basically the same, so this embodiment takes one of them as an example for specific description:

[0034] The elastic mechanism includes a spring 33 , a slide rail 31 , and a slider 32 ; the slide rail 31 is fixed on the carrier 1 , and a guide groove 311 extending vertically is formed in the slide rail 31 , and the slider 32 is vertically slidably disposed in the guide groove 311 .

[0035] The spring 33 is arranged between the slide rail 31 and the slider 32 to apply a downward elastic force to the slider 32. In order to guide the spring 33, in this embodiment, a guide rod 34 is vertically movably penetrated on the slide rail 31, the lower end of the guide rod 34 is fixed to the top of the slider 32, and the upper end passes through the top of the slide rail 31; the spring 33 is arranged in the guide groove 311 and is sleeved on the guide rod 34, and its two ends are respectively against the top wall of the guide groove 311 and the top wall of the slider 32; the end of the clamping roller 2 is rotatably connected to the slider 32, so that under the downward elastic force provided by the spring 33, the slider 32 is pushed to move downward, thereby driving the clamping roller 2 to move downward to press the artificial leather.

[0036] The lifting mechanism is mainly used to lift the pressing roller 2 upward by overcoming the elastic force of the spring and the deadweight of the pressing roller 2 when the artificial leather needs to pass through the bottom of the pressing roller 2. In this embodiment, the lifting mechanism can be one or two groups; the following takes the setting of two groups as an example, and the two groups of lifting mechanisms are arranged side by side along the second direction. Since the two lifting mechanisms are basically the same, this embodiment is specifically described by taking one of them as an example:

[0037] The lifting mechanism includes a movable component 41 and a driving component; the movable component 41 can move along a first direction relative to the carrier 1, and the first direction is perpendicular to the axial direction of the clamping roller 2; for example, in this embodiment, the first direction can be understood as the length direction of the carrier 1, and the width direction of the carrier 1 is correspondingly recorded as the second direction, and the first direction and the second direction are perpendicular to each other.

[0038] like Figure 3 As shown, the driving member is used to apply a force parallel to the first direction to the movable member 41 to push the movable member 41 to move along the first direction. The pressure roller 2 is at least partially located in the moving path of the movable member 41, so as to ensure that the movable member 41 can contact the pressure roller 2 to lift the pressure roller 2 when moving along the first direction.

[0039] Combination Figure 1 and Figure 5 As shown, the top surface of the movable component 41 includes a supporting surface 411 and a guiding surface 412 which are connected in sequence along a first direction:

[0040] The guide surface 412 is constructed as an inclined surface that gradually tilts downward toward the side away from the supporting surface 411, and the lowest end of the guide surface 412 is lower than the carrier surface 11. This is because when the pressure roller 2 is lifted, the pressure roller 2 needs to contact the guide surface 412 first. At this time, if the lowest end of the guide surface 412 is higher than the carrier surface 11, the movable component 41 will be blocked by the pressure roller 2 when moving forward, so that the pressure roller 2 cannot move smoothly to the guide surface 412.

[0041] The supporting surface 411 is a plane and is higher than the carrier surface 11. In addition, the supporting surface 411 is connected to the highest end of the guide surface 412. Preferably, a curved surface 413 is used for transition connection between the highest ends of the supporting surface 411 and the guide surface 412 to avoid sharp edges at the connection position between the supporting surface 411 and the guide surface 412.

[0042] Designing the supporting surface 411 as a plane can ensure that when no external force is applied, the pressing roller 2 will not move relative to the movable member 41 in the first direction on the supporting surface 411, thereby ensuring the stability of the support. In addition, since the pressing roller 2 needs to be lifted up, the supporting surface 411 should be higher than the carrier surface 11, so that after the pressing roller 2 is lifted up, a gap is formed between the pressing roller 2 and the carrier surface 11 for the artificial leather to pass through. Figure 1 and Figure 4 Status shown.

[0043] When the pinch roller 2 needs to be lifted, the driving member drives the movable member 41 to move in the first direction, so that the guide surface 412 first contacts the pinch roller 2. Since the guide surface 412 is an inclined surface, as the guide surface 412 continues to move forward, the pinch roller 2 will be continuously pushed upward by the guide surface 412, and finally the pinch roller 2 moves to the supporting surface 411 and is supported by the supporting surface 411 (such as Figure 1 The lifting action is completed.

[0044] Then the artificial leather passes through the lower part of the pressing roller 2. After passing through, the movable member 41 is controlled to move in the opposite direction (ie, backward) along the first direction until the pressing roller 2 is separated from the movable member 41. At this time, the pressing roller 2 is pressed on the artificial leather.

[0045] It can be seen that in this solution, the pressure roller 2 is supported by the movable component 41, and the force applied by the driving member to the movable component 41 is along the first direction, perpendicular to the downward pressure direction of the pressure roller 2. In this way, even if the driving member fails, the movable component 41 will not move in the first direction, so that the pressure roller 2 is still held up by the movable component 41, so that it is not easy to injure the hands of people working normally.

[0046] In order to guide the movable member 41 to move in the first direction, and to make the supporting surface 411 and the guiding surface 412 meet the following adjustment: the lowest end of the guiding surface 412 is lower than the carrying surface 11, and the supporting surface 411 is higher than the carrying surface 11; in this embodiment, Figure 1 As shown, a slide groove 12 extending along a first direction is opened on the carrying surface 11, and the movable component 41 is slidably arranged in the slide groove 12; the supporting surface 411 is higher than the notch of the slide groove 12, and the lowest end of the guiding surface 412 is lower than the notch of the slide groove 12, and the notch of the slide groove 12 is flush with the carrying surface 11.

[0047] In this embodiment, Figure 3 As shown, the driving member can be one of a cylinder 42, a hydraulic cylinder, and an electric cylinder, taking the cylinder 42 as an example; the cylinder 42 is arranged at the bottom of the carrier 1 and is arranged along the first direction; an active groove 13 extending along the first direction and connected to the bottom of the slide groove 12 is opened on the bottom surface of the carrier 1, and the movable component 41 includes an extension portion 410, which is slidably arranged in the movable groove 13 and passes through the lower part of the movable groove 13 to be fixedly connected with the output shaft of the cylinder 42, and the extension portion 410 is pushed by the cylinder 42 to move along the movable groove 13 in the first direction, thereby driving the entire movable component 41 to move along the slide groove 12 in the first direction.

[0048] In this embodiment, the two groups of lifting mechanisms are arranged relatively along the second direction, and the second direction is perpendicular to the first direction; Figure 4 and Figure 5 As shown, the inner sides of the movable components 41 of the two lifting mechanisms are provided with limiting components; the artificial leather is limited between the two limiting components in the second direction; the relative spacing of the two limiting components in the second direction is basically the same as the width of the artificial leather to be rolled up, and during the process of rolling up the artificial leather, the artificial leather advances between the two limiting components, and the limiting components prevent the artificial leather from deflecting in the second direction during the forward movement, thereby affecting the rolling effect.

[0049] For example, in this embodiment, Figure 5 As shown, the limiting component includes a side limiting plate 51 extending along the first direction, and the side edge of the artificial leather is limited by the side limiting plate 51. In addition, in order to avoid scratching between the side limiting plate 51 and the carrier surface 11 when the side limiting plate 51 moves with the movable component 41, in this embodiment, the gap between the bottom edge of the side limiting plate 51 and the carrier surface 11 is matched, and the gap between the two is smaller than the thickness of the artificial leather.

[0050] In addition, in order to prevent the artificial leather from escaping upward from the side limiting plate 51, in this embodiment, Figure 5 As shown, the limiting member includes a side limiting plate 51 extending along the first direction and an upper limiting plate 52 arranged on the top of the side limiting plate 51 and extending along the first direction, and the side limiting plate 51 and the upper limiting plate 52 together form an L-shaped structure; the upper limiting plate 52 and the side limiting plate 51 are not higher than the supporting surface 411 to avoid the clamping roller 2 from pressing on the two limiting plates when the clamping roller 2 is lifted.

[0051] In order to make the limiting member adapt to artificial leathers of different widths, in this embodiment, the limiting member can be moved and adjusted relative to the movable member 41 along the second direction to adjust the relative distance between the two limiting members in the second direction, thereby adapting to artificial leathers of different widths. Specifically:

[0052] like Figure 5As shown, an adjustment mechanism is provided between the limiting member and the movable member 41, and the adjustment mechanism includes a plurality of guide rods 72 movably arranged on the movable member 41 along the second direction, and one end of the guide rod 72 is connected to the limiting member; one of the guide rods 72 is a screw rod 71, and the screw rod 71 is threadedly connected to the movable member 41, and one end of the screw rod 71 is rotatably connected to the limiting member; in this embodiment, two guide rods 72 are adopted, one of the guide rods 72 is a screw rod 71, and the inner end of the screw rod 71 is rotatably connected to the side limiting plate 51, and the inner end of the other guide rod 72 is fixedly connected to the side limiting plate 51.

[0053] When the spacing needs to be adjusted, the screw rod 71 only needs to be rotated to drive the screw rod 71 to move axially (ie, in the second direction), thereby adjusting the spacing between the limiting plates 51 on both sides.

[0054] In addition, in order to guide the artificial leather onto the winding roller of the winding device, in this embodiment, a rotatable guide roller 6 is provided at the front end of the carrier 1 , and the highest point of the guide roller 6 is not higher than the bottom surface of the upper limit plate 52 .

[0055] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. An artificial leather winding pre-tightening device, comprising a carrier with a carrying surface and a pressing roller, wherein the pressing roller is arranged on the carrier and can rotate, and the pressing roller is used to press the artificial leather down onto the carrying surface under the action of its own weight, or under the combined action of its own weight and the elastic force provided by an elastic mechanism, and the pre-tightening device also comprises a lifting mechanism for vertically lifting the pressing roller, characterized in that: The lifting mechanism comprises a movable component capable of moving relative to the carrier in a first direction and a driving member driving the movable component to move in the first direction, and the pressing roller is at least partially located in the moving path of the movable component; The top surface of the movable component includes a supporting surface and a guiding surface connected in sequence along a first direction, the guiding surface is constructed as an inclined surface which gradually tilts downward toward the side away from the supporting surface, the lowest end of the guiding surface is lower than the load surface, the supporting surface is a plane and is higher than the load surface and connected to the highest end of the guiding surface; the first direction is perpendicular to the axial direction of the pressure roller.

2. The artificial leather rolling and pre-tightening device according to claim 1, characterized in that: The carrying surface is provided with a slide groove extending along a first direction, and the movable component is slidably arranged in the slide groove; the supporting surface is higher than the notch of the slide groove, and the lowest end of the guiding surface is lower than the notch of the slide groove.

3. The artificial leather rolling and pre-tightening device according to claim 2, characterized in that: The driving member is arranged at the bottom of the platform; a movable groove extending along the first direction and connected to the bottom of the slide groove is opened on the bottom surface of the platform, and the movable component includes an extension part, which is slidably arranged in the movable groove and passes through the lower part of the movable groove to connect with the driving member.

4. The artificial leather rolling and pre-tightening device according to any one of claims 1 to 3, characterized in that: The driving member includes one of a pneumatic cylinder, a hydraulic cylinder and an electric cylinder.

5. The artificial leather rolling and pre-tightening device according to claim 1, characterized in that: The lifting mechanism comprises two groups, the two groups of lifting mechanisms are arranged opposite to each other along a second direction, the second direction is perpendicular to the first direction; limiting components are arranged on the inner sides of the movable components of the two lifting mechanisms; the artificial leather is limited between the two limiting components in the second direction.

6. The artificial leather rolling and pre-tightening device according to claim 5, characterized in that: The limiting component can be moved and adjusted relative to the movable component along the second direction to adjust the relative distance between the two limiting components in the second direction.

7. The artificial leather rolling and pre-tightening device according to claim 6, characterized in that: An adjustment mechanism is provided between the limiting component and the movable component, and the adjustment mechanism includes a plurality of guide rods movably arranged on the movable component along the second direction, one end of the guide rods is connected to the limiting component; one of the guide rods is a screw rod, the screw rod is threadedly connected to the movable component, and one end of the screw rod is rotationally connected to the limiting component.

8. The artificial leather rolling and pre-tightening device according to any one of claims 5 to 7, characterized in that: The limiting component includes a side limiting plate extending along the first direction, and / or the limiting component includes a side limiting plate extending along the first direction and an upper limiting plate arranged on the top of the side limiting plate and extending along the first direction, and the upper limiting plate and the side limiting plate are not higher than the supporting surface.

9. The artificial leather rolling and pre-tightening device according to claim 1, characterized in that: The pressure roller presses the artificial leather down onto the carrier surface under the combined action of its own weight and the elastic force provided by an elastic mechanism; the elastic mechanism includes a spring, a slide rail, and a slider; the slide rail is fixed on the carrier, the slider is vertically slidably arranged on the slide rail, and the spring is arranged between the slide rail and the slider to apply a downward elastic force to the slider; the end of the pressure roller is rotatably connected to the slider.

10. The artificial leather rolling and pre-tightening device according to claim 1, characterized in that: A rotatable guide roller is provided at the front end of the carrier.

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