A drawing winding machine

Abstract

The present invention discloses a drawing winding machine, comprising a frame, a winding drum is installed on the frame in a horizontal direction, a group of winding drum adjustment mechanisms are installed on the inner sides of the two ends of the winding drum, one end of the winding drum is connected to one end of a first rotating shaft, the other end of the winding drum is connected to one end of a second rotating shaft, the other end of the first rotating shaft and the other end of the second rotating shaft are respectively installed on the frame through a bearing seat, and a hand crank is provided at the other end of the first rotating shaft, and a through groove is provided on the outer wall of the winding drum, and the through groove is provided along the length direction of the winding drum. The present invention solves the problems of low efficiency of existing drawing winding and difficulty in separating drawings from the winding roller.

Description

Technical Field

[0001] The invention belongs to the technical field of drawing winding equipment and relates to a drawing winding machine. Background Art

[0002] Students majoring in drawing need to draw drawings frequently and print them out. After a large number of drawings are printed, most of them need to be rolled up manually. This rolling method is inefficient and the winding is uneven. There is a drawing rolling device that rolls up the drawings. After the drawings are rolled up, the drawings are tightly wound around the winding roller, and it is not easy to separate the drawings from the winding roller, which affects the next rolling operation, thereby causing the problem of low efficiency in rolling up the drawings. Summary of the invention

[0003] The purpose of the present invention is to provide a drawing winding machine, which solves the problems of low efficiency of existing drawing winding and difficulty in separating the drawing from the winding roller.

[0004] The technical solution adopted by the present invention is a drawing winder, comprising a frame, a winding drum is installed on the frame in a horizontal direction, a group of winding drum adjustment mechanisms are respectively installed on the inner sides of both ends of the winding drum, one end of the winding drum is connected to one end of the first rotating shaft, the other end of the winding drum is connected to one end of the second rotating shaft, the other end of the first rotating shaft and the other end of the second rotating shaft are respectively installed on the frame through bearing seats, and the other end of the first rotating shaft is provided with a hand crank, and a through groove begins to be provided on the outer wall of the winding drum, and the through groove is arranged along the length direction of the winding drum.

[0005] The present invention is also characterized in that:

[0006] The winding drum comprises a plurality of arc-shaped plates, each of which is spliced ​​in sequence to form a cylindrical structure, and the through slot is arranged on the arc-shaped plate.

[0007] There are three arc-shaped plates, and the two groups of the reel adjustment mechanisms are respectively arranged at the two end portions of the three arc-shaped plates.

[0008] Each set of reel adjustment mechanisms includes a hollow adjustment cylinder, one end of which is provided with a triangular adjustment block, the three sides of the adjustment block are respectively connected to a set of telescopic mechanisms, and the three sets of telescopic mechanisms are respectively connected to which arc-shaped plate;

[0009] The other ends of the adjusting drums in the two sets of the reel adjusting mechanisms are respectively connected to one end of the first rotating shaft and one end of the second rotating shaft.

[0010] The first rotating shaft and the second rotating shaft are both coaxially sleeved at the center of the adjusting cylinder and are connected by threads.

[0011] Each telescopic mechanism includes a sleeve, one end of which is fixed to the side of the adjusting block, and a first spring is coaxially sleeved in the sleeve, the other end of the sleeve is coaxially sleeved to one end of the telescopic rod, the other end of the telescopic rod is fixed to the center of the inner wall of the arc plate, one end of the first spring is fixed to one side of the adjusting block, the other end of the first spring is fixed to one end of the telescopic rod, and the outer wall of the telescopic rod is connected to the adjusting rod.

[0012] The frame is a U-shaped structure, and a pressing unit is arranged between the bottom surface of the frame and the winding drum.

[0013] The clamping unit includes a support plate, the two ends of the lower end surface of the support plate are respectively hinged on the bottom surface of the frame, the upper end surface of the support plate is provided with a flat plate, the flat plate is tangent to the outer surface of the winding drum, and a plurality of elastic components are provided between the lower end surface of the support plate and the bottom of the frame.

[0014] The elastic components are second springs, and the second springs are arranged at intervals along the length direction of the frame.

[0015] An anti-reversal mechanism is provided between the hand crank and the frame, and the anti-reversal mechanism includes a ratchet coaxially assembled on the output shaft of the hand crank, the ratchet cooperates with a pawl, the pawl is connected to the outer wall of the frame through a pin shaft, and the pawl can rotate around the pin shaft.

[0016] The beneficial effect of the present invention is that one end of the drawing is clamped in the through groove of the winding drum, and the output shaft of the hand crank drives the winding drum to rotate, and the winding drum drives the environmental art drawing to be wound. When the winding is completed, the bearing seat and the frame are separated, so that one end of the second rotating shaft of the winding drum forms a free end. Thereafter, the two adjusting mechanisms are adjusted to make the outer wall of the winding drum move radially inward along the winding drum, thereby reducing the radius of the winding drum, so that a gap is formed between the outer wall of the winding drum and the wound drawing, so that the drawing can be removed from the above-mentioned free end. Then, the adjusting mechanism is adjusted to increase the radius of the winding drum and reset it, and then the winding drum is rotated back to its original position, the bearing seat and the frame are fixed, and the next winding is carried out. This winding method can more easily separate the drawing from the winding drum, so as to facilitate the next winding operation, thereby improving the efficiency of the drawing winding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a drawing winder of the present invention;

[0018] Figure 2 It is a structural schematic diagram of a winding drum and an adjusting mechanism in a drawing winding machine of the present invention;

[0019] Figure 3 It is a cross-sectional view of an adjustment mechanism and a winding drum in a drawing winding machine of the present invention;

[0020] Figure 4It is a schematic diagram of the structure of a drawing winder from another angle of the present invention;

[0021] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0022] Figure 6 The present invention is a schematic structural diagram of a frame and a support plate in a drawing winder.

[0023] In the figure, 1. arc plate, 2. frame, 3. first rotating shaft, 4. second rotating shaft, 5. hand crank, 6. bearing seat, 7. through slot, 8. adjusting cylinder, 9. adjusting block, 10. sleeve, 11. first spring, 12. telescopic rod, 13. adjusting rod, 14. ratchet, 15. pawl, 16. support plate, 17. second spring, 18. flat plate. DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] The present invention provides a drawing winding machine, such as Figure 1 As shown, it includes a winding drum for winding up drawings, the winding drum is installed on the frame 2, and winding drum adjustment mechanisms are respectively provided at both ends of the axial direction of the winding drum, the winding drum adjustment mechanisms are arranged inside the winding drum, and the winding drum adjustment mechanisms are used to adjust the diameter of the winding drum, and the two winding drum adjustment mechanisms are respectively rotatably connected with the first rotating shaft 3 and the second rotating shaft 4, the first rotating shaft 3, the second rotating shaft 4 and the axis of the winding drum coincide, the first rotating shaft 3 and the output shaft of the hand crank 5 are coaxially connected, the hand crank 5 is rotatably installed on the frame 2, the second rotating shaft 4 and the first rotating shaft 3 are respectively assembled with the bearing seat 6, and the bearing seat 6 is detachably installed on the frame 2, and the specific connection method is bolt connection;

[0026] The outer surface of the winding drum is provided with a through groove 7, and the function of the through groove 7 is to clamp the end of the drawing, clamp one end of the drawing in the through groove 7 of the winding drum, and turn the output shaft of the hand crank 5 to drive the winding drum to rotate, and the winding drum drives the drawing to be wound. When the winding is completed, the bearing seat 6 and the frame body 2 are separated, so that one end of the second rotating shaft 4 of the winding drum forms a free end. Then, the two winding drum adjustment mechanisms are adjusted to make the outer wall of the winding drum move radially inwardly along the winding drum, thereby reducing the radius of the winding drum, so that a gap is formed between the outer wall of the winding drum and the wound drawing, so that the drawing can be removed from the above-mentioned free end. Then, the adjustment mechanism is adjusted to increase the radius of the winding drum and reset it. After rotating the winding drum back to its original position, the bearing seat 6 and the frame body 2 are fixed to carry out the next winding. This winding method is easier to separate the drawing from the winding drum, so as to facilitate the next winding operation, thereby improving the efficiency of the drawing winding work.

[0027] The specific structure of the winding drum is as follows: Figure 2As shown, the winding drum includes multiple arc plates 1, specifically three arc plates 1, which are independent of each other and form a cylindrical structure. Each arc plate 1 extends from one end of the first rotating shaft 3 to the axis of the second rotating shaft 4.

[0028] like Figure 2 , 3 As shown, since the two reel adjustment mechanisms have the same structure, and the two reel adjustment mechanisms are respectively connected to the first rotating shaft 3 or the second rotating shaft 4 in the same manner, taking the connection between the reel adjustment mechanism and the first rotating shaft 3 as an example, the specific structure of the reel adjustment mechanism is that the adjustment mechanism includes an adjustment cylinder 8, the adjustment cylinder 8 is sleeved on the first rotating shaft 3, the adjustment cylinder 8 is threadedly connected to the first rotating shaft 3, and an adjustment block 9 is formed at one end of the adjustment cylinder 8 away from the first rotating shaft 3. A telescopic mechanism is arranged on the adjustment block 9, and the telescopic mechanism is arranged at a position corresponding to the center of each arc plate 1. The telescopic mechanism is used to expand each arc plate 1 outward or contract it inward along its radial direction, thereby adjusting the diameter of the reel;

[0029] The specific structure of the telescopic mechanism is that the telescopic mechanism includes the same number of sleeves 10 as the arc plate 1, the sleeves 10 are formed on the circumferential surface of the adjusting block 9, each sleeve 10 corresponds to the center of the arc plate 1, and the bottom of the sleeve 10 is fixedly connected with a first spring 11, one end of the first spring 11 is fixedly connected with the bottom of the sleeve 10, and the other end is fixedly connected with a telescopic rod 12 in the sleeve 10, the telescopic rod 12 extends outwardly along the axial direction of the sleeve 10 to the corresponding arc plate 1, and is integrally formed with the arc plate 1, and an adjusting rod 13 extending outwardly along the axial direction of the winding drum is integrally formed on each telescopic rod 12.

[0030] The specific method of adjusting the diameter of the winding drum is that when the winding drum has finished winding the drawings, the drawings need to be separated from the winding drum. First, each adjusting rod 13 is compressed along the axial direction of the telescopic rod 12 toward the direction close to the sleeve 10 by external force, thereby reducing the diameter of the winding drum and making it easy to remove the drawings from the winding drum. Then, the external force acting on the adjusting rod 13 is cancelled, and the first spring 11 supports the telescopic rod 12 to expand outward under the action of elastic potential energy, and the telescopic rod 12 supports the arc plate 1 to move outward, thereby completing the resetting of the winding drum and the next winding work can be carried out.

[0031] like Figure 4 , 5 As shown, specifically, an anti-reversal mechanism is constructed between the hand crank 5 and the frame 2, and the anti-reversal mechanism is used to prevent the hand crank 5 from rotating in the opposite direction. The specific structure of the anti-reversal mechanism includes a ratchet brake unit, and the ratchet brake unit includes a ratchet 14 coaxially assembled on the output shaft of the hand crank 5, and a pawl 15 cooperating with the ratchet 14 is rotatably connected to the outer wall of the frame 2 through a pin shaft.

[0032] like Figure 1 , 6 As shown, a pressing unit is installed on the frame 2, and the pressing unit is used to roll the drawings more compactly. The specific structure of the pressing unit includes a support plate 16, which is rotatably connected to the bottom of the frame 2, and an elastic component is fixedly connected between the support plate 16 and the bottom of the frame 2. The elastic component can make the support plate 16 move vertically, and a flat plate 18 is formed at one end of the support plate 16 away from the bottom of the frame 2. The flat plate 18 is tangent to the outer surface of the winding drum. When the winding drum rolls up the drawings, the elastic component drives the flat plate 18 to receive the drawings wound on the reel, so that the drawings are rolled up more compactly.

[0033] The specific structure of the elastic component is that the elastic component includes a plurality of second springs 17, each of which is arranged at intervals along the length direction of the frame 2, and the second springs 17 are respectively fixedly connected to the support plate 16 and the bottom of the frame 2, and the second springs 17 drive the flat plate 18 of the support plate 16 to contact the outer surface of the winding drum. When the drawing is wound, the flat plate 18 contacts the wound drawing under the action of the second springs 17, so that the drawing is wound more compactly and smoothly.

Claims

1. A drawing winder, characterized in that: The machine comprises a frame, a winding drum is installed on the frame in a horizontal direction, a group of winding drum adjustment mechanisms are installed on the inner sides of the two ends of the winding drum, one end of the winding drum is connected to one end of the first rotating shaft, the other end of the winding drum is connected to one end of the second rotating shaft, the other end of the first rotating shaft and the other end of the second rotating shaft are respectively installed on the frame through a bearing seat, and the other end of the first rotating shaft is provided with a hand crank, and a through groove is opened on the outer wall of the winding drum, and the through groove is arranged along the length direction of the winding drum; The winding drum comprises a plurality of arc-shaped plates, each of which is sequentially spliced ​​to form a cylindrical structure, and the through slot is provided on the arc-shaped plate; The number of the arc-shaped plates is three, and the two sets of the reel adjustment mechanisms are respectively arranged at the two end portions of the three arc-shaped plates; Each set of the reel adjustment mechanism comprises a hollow adjustment cylinder, one end of which is provided with a triangular adjustment block, the three sides of the adjustment block are respectively connected to a set of telescopic mechanisms, and the three sets of telescopic mechanisms are respectively connected to the three arc-shaped plates; The other ends of the adjusting drums in the two sets of the reel adjusting mechanisms are respectively connected to one end of the first rotating shaft and one end of the second rotating shaft; The first rotating shaft and the second rotating shaft are both coaxially sleeved at the center of the adjusting cylinder and connected by threads; Each group of the telescopic mechanism includes a sleeve, one end of the sleeve is fixed to the side of the adjustment block, and a first spring is coaxially sleeved in the sleeve, the other end of the sleeve is coaxially sleeved to one end of the telescopic rod, the other end of the telescopic rod is fixed to the center of the inner wall of the arc plate, one end of the first spring is fixed to one side of the adjustment block, the other end of the first spring is fixed to one end of the telescopic rod, and the outer wall of the telescopic rod is connected to the adjustment rod; The frame is a U-shaped structure, and a pressing unit is provided between the bottom surface of the frame and the winding drum; The clamping unit comprises a support plate, the two ends of the lower end surface of the support plate are respectively hinged on the bottom surface of the frame body, the upper end surface of the support plate is provided with a flat plate, the flat plate is tangent to the outer surface of the winding drum, and a plurality of elastic components are provided between the lower end surface of the support plate and the bottom of the frame body; The elastic components are second springs, and the second springs are arranged at intervals along the length direction of the frame; An anti-reversal mechanism is provided between the hand crank and the frame, and the anti-reversal mechanism includes a ratchet coaxially assembled on the output shaft of the hand crank, the ratchet cooperates with a pawl, the pawl is connected to the outer wall of the frame through a pin shaft, and the pawl can rotate around the pin shaft.

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