Unreeling device of medicinal aluminum foil coating printing machine

Abstract

The utility model provides an unreeling device of a medicinal aluminum foil coating printing machine, which relates to the technical field of coating printing machines, and comprises a platform plate, an unreeling component for unreeling and a deviation rectifying device for deviation rectifying are arranged on the upper surface of the platform plate, the unreeling component comprises two vertical plates, a driving motor is arranged on the side surface of each vertical plate, and the deviation rectifying device is arranged on the side surface of each vertical plate. The vertical plates are connected with the platform plate in a sliding mode, and a rotating disc is rotationally connected between the two vertical plates. According to the unreeling device of the medicinal aluminum foil coating printing machine, when reel bodies of different sizes need to be replaced in the using process, a hydraulic rod drives a toothed plate to move so as to drive a vertical plate to move, an old bearing cylinder is replaced with a new bearing cylinder, and when the size of the bearing cylinder is large, a first electric push rod drives a sliding block to move, so that the reel bodies of different sizes can be replaced. And the bearing cylinder is clamped by the sliding block, so that the stability of the bearing cylinder is maintained, and the problem that a common unwinding device in the prior art is poor in applicability is solved.

Description

Technical Field

[0001] This utility model relates to an unwinding device, specifically an unwinding device for a pharmaceutical aluminum foil coating printing machine, belonging to the technical field of coating printing machines. Background Technology

[0002] Pharmaceutical aluminum foil coating and printing machines are mainly used for producing various pharmaceutical aluminum foils and composite packaging materials. This machine is suitable for the production of pharmaceutical aluminum foil materials and features three-color front-side printing and two-color front-and-back printing. The unit can complete the coating of protective agents and PVC heat-sealing adhesive in one pass. PVC was once the world's largest-volume general-purpose plastic, with very wide applications in building materials, industrial products, daily necessities, flooring, floor tiles, artificial leather, pipes, wires and cables, foaming materials, sealing materials, and fibers.

[0003] Chinese Patent Application Publication CN220283187U discloses an unwinding mechanism for a pharmaceutical aluminum foil coating and printing machine. The mechanism drives a rotating roller to rotate via a connecting shaft, which in turn drives a threaded strip to rotate. The rotation of the threaded strip further drives multiple sliders to slide inward or outward along a straight groove, thereby driving multiple arc-shaped plates to move inward or outward, thus fixing the aluminum foil roll and preventing slippage during rotation. This mechanism features stable placement of the aluminum foil roll and simple operation.

[0004] While the aforementioned patent can fix the aluminum foil roll by rotating the threaded strip to drive multiple sliders to slide inward or outward along the straight groove, thus preventing slippage during rotation, the fixed dimensions of the connecting shaft and rotating shaft make it difficult to adjust for rolls of different sizes during unwinding, resulting in poor applicability. Furthermore, common unwinding devices inevitably experience positional shifts during prolonged continuous unwinding, leading to misalignment in printing. The aforementioned patent lacks a correction device, affecting its stability during unwinding.

[0005] Therefore, an unwinding device for a pharmaceutical aluminum foil coating printing machine is proposed here. Utility Model Content

[0006] This invention proposes an unwinding device for a pharmaceutical aluminum foil coating and printing machine to solve the problem of poor applicability of common unwinding devices in the prior art. At the same time, it improves the stability of the unwinding process by using a correction device to prevent the roll from shifting during the unwinding process.

[0007] This utility model is achieved through the following technical solution: an unwinding device for a pharmaceutical aluminum foil coating printing machine, comprising a platform plate, wherein the upper surface of the platform plate is provided with an unwinding component for unwinding and a correction device for correction.

[0008] The unwinding component includes two upright plates, each with a drive motor mounted on its side. The upright plates are slidably connected to a platform plate, and a turntable is rotatably connected between the two upright plates. Each of the two turntables has a sliding groove on one side that is close to the other. A first electric push rod is disposed between the two turntables. The first electric push rod is fixed to the turntable by a fixing rod. A rotating plate is hinged to the output end of the first electric push rod, and a slider is hinged to the other end of the rotating plate. The slider is slidably connected to the sliding groove, and a bearing cylinder is sleeved on the outer surface of the slider.

[0009] The unwinding component also includes a gear mounted on the bottom surface of the platform plate. The gear is rotatably connected to the platform plate. Two toothed plates are slidably connected to the bottom surface of the platform plate. The toothed plates mesh with the gear. A slot is provided on the upper surface of the platform plate. The toothed plates are fixed to their corresponding vertical plates through the slot.

[0010] A hydraulic rod is installed on the bottom surface of the platform plate. The output end of the hydraulic rod is fixed to the toothed plate located on the left side. A support plate is fixed on the bottom surface of the platform plate. The toothed plate is slidably connected to the support plate. The hydraulic rod can drive the toothed plate to move, thereby driving the upright plate to move.

[0011] The correction device includes a bracket, which is fixed to the platform plate. A frame is slidably connected to the inner wall of the bracket. A second electric push rod is installed on the upper surface and the bottom surface of the frame. A mounting base is installed on the output end of each of the second electric push rods. A rotating wheel is installed on the inner wall of each mounting base. A drive motor is installed on the side of the upper mounting base. The output end of the drive motor is connected to the rotating wheel.

[0012] The inner wall of the frame is provided with a track groove, and an auxiliary rod is provided on the side of the frame. A track block is rotatably connected to one end of the auxiliary rod near the frame, and the track block is slidably connected to the track groove.

[0013] A fixing plate is fixed to the side of the frame, and a reset spring and a reset telescopic rod are installed on the side of each of the two track blocks that are far apart from each other. The other end of the reset spring and the reset telescopic rod are fixed to the fixing plate.

[0014] A light emitting end and a light receiving end are provided between the two sets of auxiliary rods on the same side, and the light emitting end and the light receiving end are respectively fixed to the inner top wall and the inner bottom wall of the frame.

[0015] This utility model provides an unwinding device for a pharmaceutical aluminum foil coating and printing machine, which has the following beneficial effects:

[0016] 1. The unwinding device of this pharmaceutical aluminum foil coating and printing machine, when it is necessary to change to rolls of different sizes during use, moves the toothed plate by means of a hydraulic rod, which in turn moves the vertical plate to replace the old carrier tube with a new one. When the size of the carrier tube is large, the slider is moved by the first electric push rod, and the slider engages the carrier tube to maintain its stability, thus solving the problem of poor applicability of the unwinding device in the prior art.

[0017] 2. The unwinding device of the pharmaceutical aluminum foil coating and printing machine is equipped with a correction device. During the unwinding process, when the light receiver receives light emitted by the light transmitter, it indicates that the roll has shifted. At this time, the external control device controls the second electric push rod and the drive motor to start working. The second electric push rod drives the rotating wheel to descend, and the drive motor drives the rotating wheel to rotate. The rotation of the rotating wheel causes the roll to move laterally, correcting the shifted roll. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure at the position of the rotating plate of this utility model;

[0020] Figure 3 This is a bottom view of the platform plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the correction device of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure at the mounting base position of this utility model.

[0023] Explanation of reference numerals in the attached figures

[0024] 1. Platform board;

[0025] 2. Unwinding component; 201. Vertical plate; 202. Turntable; 203. First electric actuator; 204. Rotating plate; 205. Slider; 206. Bearing cylinder; 207. Gear; 208. Gear plate; 209. Hydraulic rod; 210. Support plate;

[0026] 3. Correction device; 301. Bracket; 302. Frame; 303. Second electric push rod; 304. Mounting base; 305. Rotary wheel; 306. Drive motor; 307. Auxiliary rod; 308. Track block; 309. Fixing plate; 310. Return spring; 311. Return telescopic rod; 312. Light emitting end; 313. Light receiving end. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0028] Please see Figures 1-5 This utility model provides an unwinding device for a pharmaceutical aluminum foil coating and printing machine, including a platform plate 1. The upper surface of the platform plate 1 is provided with an unwinding component 2 for unwinding and a correction device 3 for correction. The unwinding component 2 includes two vertical plates 201. A drive motor 306 is installed on the side of the vertical plate 201. The vertical plate 201 is slidably connected to the platform plate 1. A turntable 202 is rotatably connected between the two vertical plates 201. A sliding groove is opened on the side of the two turntables 202 that are close to each other. A first electric push rod 203 is provided between the two turntables 202. The first electric push rod 203 is fixed to the turntable 202 by a fixing rod. A rotating plate 204 is hinged to the output end of the first electric push rod 203. A slider 205 is hinged to the other end of the rotating plate 204. The slider 205 is slidably connected to the sliding groove. A bearing cylinder 206 is sleeved on the outer surface of the slider 205.

[0029] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 The unwinding component 2 also includes a gear 207 mounted on the bottom surface of the platform plate 1. The gear 207 is rotatably connected to the platform plate 1. Two toothed plates 208 are slidably connected to the bottom surface of the platform plate 1. The toothed plates 208 mesh with the gear 207. A slot is provided on the upper surface of the platform plate 1. The toothed plates 208 are fixed to their corresponding upright plates 201 through the slot. A hydraulic rod 209 is mounted on the bottom surface of the platform plate 1. The output end of the hydraulic rod 209 is fixed to the toothed plate 208 located on the left side. A support plate 210 is fixed on the bottom surface of the platform plate 1. The toothed plates 208 are slidably connected to the support plate 210. The hydraulic rod 209 can drive the toothed plates 208 to move, thereby driving the upright plates 201 to move.

[0030] Please refer to this carefully. Figure 1 , Figure 4 and Figure 5The correction device 3 includes a bracket 301, which is fixed to the platform plate 1. A frame 302 is slidably connected to the inner wall of the bracket 301. A second electric push rod 303 is installed on the upper and bottom surfaces of the frame 302. A mounting base 304 is installed at the output end of the second electric push rod 303. A rotating wheel 305 is installed on the inner wall of the mounting base 304. A drive motor 306 is installed on the side of the upper mounting base 304. The output end of the drive motor 306 is connected to the rotating wheel 305. A track groove is opened on the inner side wall of the frame 302. An auxiliary rod 307 is provided on the side of the frame 302. A track block 308 is rotatably connected to the end of the auxiliary rod 307 near the frame 302. The track block 308 is slidably connected to the track groove.

[0031] Please refer to this carefully. Figure 1 , Figure 4 and Figure 5 A fixing plate 309 is fixed to the side of the frame 302. A reset spring 310 and a reset telescopic rod 311 are installed on the side of the two track blocks 308 that are far apart from each other. The other ends of the reset spring 310 and the reset telescopic rod 311 are fixed to the fixing plate 309. A light emitting end 312 and a light receiving end 313 are provided between the two sets of auxiliary rods 307 on the same side. The light emitting end 312 and the light receiving end 313 are fixed to the inner top wall and the inner bottom wall of the frame 302, respectively.

[0032] In use, when it is necessary to change to a different size roll, the hydraulic rod 209 drives the toothed plate 208 to move, which in turn drives the upright plate 201 to move, so that the old carrier cylinder 206 can be replaced with a new carrier cylinder 206. When the size of the carrier cylinder 206 is large, the first electric push rod 203 drives the slider 205 to move. The slider 205 engages the carrier cylinder 206 to maintain its stability, thus solving the problem of poor applicability of the unwinding device commonly found in the prior art.

[0033] By setting up the correction device 3, during the unwinding process, when the light receiver 313 receives the light emitted by the light transmitter 312, it indicates that the roll body has shifted. At this time, the external control device controls the second electric push rod 303 and the drive motor 306 to start working. The second electric push rod 303 drives the rotating wheel 305 to descend, and the drive motor 306 drives the rotating wheel 305 to rotate. The rotation of the rotating wheel 305 causes the roll body to move laterally, correcting the shifted roll body.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An unwinding device for a pharmaceutical aluminum foil coating and printing machine, comprising a platform plate (1), characterized in that: The upper surface of the platform plate (1) is provided with an unwinding component (2) for unwinding and a correction device (3) for correction. The unwinding component (2) includes two upright plates (201). A drive motor (306) is installed on the side of the upright plate (201). The upright plate (201) is slidably connected to the platform plate (1). A turntable (202) is rotatably connected between the two upright plates (201). A sliding groove is provided on the side of the two turntables (202) that are close to each other. A first electric push rod (203) is provided between the two turntables (202). The first electric push rod (203) is fixed to the turntable (202) by a fixing rod. A rotating plate (204) is hinged to the output end of the first electric push rod (203). A slider (205) is hinged to the other end of the rotating plate (204). The slider (205) is slidably connected to the sliding groove. A bearing cylinder (206) is sleeved on the outer surface of the slider (205).

2. The unwinding device of a pharmaceutical aluminum foil coating and printing machine according to claim 1, characterized in that: The unwinding component (2) also includes a gear (207) installed on the bottom surface of the platform plate (1). The gear (207) is rotatably connected to the platform plate (1). Two toothed plates (208) are slidably connected to the bottom surface of the platform plate (1). The toothed plates (208) mesh with the gear (207). A slot is provided on the upper surface of the platform plate (1). The toothed plates (208) are fixed to their corresponding upright plates (201) through the slot.

3. The unwinding device of a pharmaceutical aluminum foil coating and printing machine according to claim 2, characterized in that: A hydraulic rod (209) is installed on the bottom surface of the platform plate (1). The output end of the hydraulic rod (209) is fixed to the toothed plate (208) located on the left side. A support plate (210) is fixed on the bottom surface of the platform plate (1). The toothed plate (208) and the support plate (210) are slidably connected.

4. The unwinding device of a pharmaceutical aluminum foil coating and printing machine according to claim 1, characterized in that: The correction device (3) includes a bracket (301), which is fixed to the platform plate (1). A frame (302) is slidably connected to the inner wall of the bracket (301). A second electric push rod (303) is installed on the upper surface and the bottom surface of the frame (302). A mounting seat (304) is installed on the output end of the second electric push rod (303). A rotating wheel (305) is installed on the inner wall of the mounting seat (304). A drive motor (306) is installed on the side of the upper mounting seat (304). The output end of the drive motor (306) is connected to the rotating wheel (305).

5. The unwinding device of a pharmaceutical aluminum foil coating and printing machine according to claim 4, characterized in that: The inner wall of the frame (302) is provided with a track groove, and an auxiliary rod (307) is provided on the side of the frame (302). A track block (308) is rotatably connected to one end of the auxiliary rod (307) near the frame (302), and the track block (308) is slidably connected to the track groove.

6. The unwinding device of a pharmaceutical aluminum foil coating and printing machine according to claim 5, characterized in that: A fixing plate (309) is fixed to the side of the frame (302). A reset spring (310) and a reset telescopic rod (311) are installed on the side of the two track blocks (308) that are far apart from each other. The other ends of the reset spring (310) and the reset telescopic rod (311) are fixed to the fixing plate (309).

7. The unwinding device of a pharmaceutical aluminum foil coating and printing machine according to claim 5, characterized in that: A light emitting end (312) and a light receiving end (313) are provided between the two sets of auxiliary rods (307) on the same side. The light emitting end (312) and the light receiving end (313) are respectively fixed to the inner top wall and the inner bottom wall of the frame (302).

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