Cover paper feeding device

Abstract

The present invention discloses a cover paper feeding device, comprising a frame, a suction cup driving unit and a support plate are installed on the upper part of the frame, a suction cup for adsorbing cover paper is arranged above the support plate, the suction cup is connected to the lower end of a suction rod, the upper end of the suction rod is connected to a vacuum pump through an air extraction pipe, and the suction rod is connected to the suction cup driving unit; a baffle is arranged on the side of the support plate, a plurality of blowing holes are arranged on the baffle plate, the rear end of the blowing holes is connected to the air pump through an air pipe, and the front end of each group of blowing holes faces the cover paper on the support plate. The present invention has the advantages of stable cover paper feeding, no shaking, and good continuity, and solves the problem of paper sticking to each other during the feeding process.

Description

Technical Field

[0001] The invention relates to the technical field of packaging equipment, and in particular to an air-blowing anti-adhesion paper feeding mechanism for fireworks product packaging. Background Art

[0002] The bead-spitting fireworks are a type of long cylindrical fireworks that can continuously emit colorful bright beads. The shape of the bead-spitting fireworks is a long cylinder, the length is generally 300-2000mm, and the outer diameter is 10-30mm. Bead-spitting fireworks are generally composed of a paper tube, a cover paper, bright beads, propellant, a mud bottom, a fuse, and a cap. The paper tube is a hollow long cylinder, which is wound with paper. The two ends of the paper tube are closed by a mud bottom and a cap. The paper tube is loaded with propellant, bright beads, and a fuse. One end of the fuse passes through the cap and extends to the outside of the paper tube. The outer surface of the paper tube is wrapped with a layer of cover paper.

[0003] Wrapping the cover paper on the cylindrical outer surface of the paper tube is an important "covering process" in the production of bead-spitting fireworks. The existing cover-wrapping process is generally carried out manually or mechanically. Manual cover-wrapping has the disadvantages of slow speed, high labor intensity, unstable quality, and high production cost. Mechanical cover-wrapping requires a cover paper feeding mechanism to first carry out the feeding operation, and the cover paper is continuously fed into the cover-wrapping mechanism one by one for winding and gluing. The existing cover paper feeding mechanism has the problem of cover paper sticking to each other, and double-layer cover paper packaging occurs during the cover-wrapping process, the material is easily stuck, and wrinkles appear on the cover paper. In addition, the existing cover paper feeding mechanism also has the problems of suction cup shaking, unstable paper transportation, and poor movement continuity. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a cover paper feeding device.

[0005] The present invention is achieved through the following technical solutions:

[0006] A cover paper feeding device comprises a frame, a support plate, a suction rod, a suction cup, an exhaust pipe, an air pump, and a suction cup driving unit. The suction cup driving unit and the support plate are installed on the upper part of the frame. A stack of cover papers is placed on the support plate. A suction cup for adsorbing the cover papers is provided above the support plate. The suction cup is connected to the lower end of the suction rod. The upper end of the suction rod is connected to the vacuum pump through the exhaust pipe. The suction rod is connected to the suction cup driving unit.

[0007] Furthermore, an air blowing anti-adhesion unit is provided on the side of the pallet, and the air blowing anti-adhesion unit includes a baffle, a blowing hole, a blowing pipe, and an air pump. The baffle is fixed on the frame or the pallet, and the baffle is arranged on the side of the pallet. A plurality of blowing holes are provided on the baffle, and the rear end of the blowing holes is connected to the air pump through the blowing pipe, and the front end of each group of blowing holes faces the cover paper on the pallet.

[0008] Furthermore, the baffle plate and the support plate are perpendicular to each other, and two or more groups of blowing holes are provided on the baffle plate, and each group of blowing holes is arranged vertically.

[0009] Furthermore, the shape of the blowing hole is circular, rectangular, elliptical, waist-shaped, slit-shaped, triangular or regular polygonal.

[0010] Furthermore, each group of blowing holes has 1 to 20 in total, and the edge interval between each blowing hole and the adjacent blowing holes is 1 to 5 mm.

[0011] Preferably, the suction cup driving unit includes a first cylinder, a push block, a movable arm, a guide plate, a guide groove, a first swing arm, a second swing arm, a first pin shaft hole, a second pin shaft hole, a first pulley, a second pulley, a first circular rotating pin, a third pin shaft hole, a fourth pin shaft hole, a third pulley, a fourth pulley, a first rotating pin, a second rotating pin, a third rotating pin, a fourth rotating pin, a second circular rotating pin, a first connecting block, a second connecting block, and a connecting plate;

[0012] The connecting plate is fixedly connected to the bottom of the first connecting block and the second connecting block, the upper end of the first connecting block is rotatably connected to the first rotating pin, the upper end of the second connecting block is rotatably connected to the third rotating pin, the first rotating pin is movably mounted on the first swing arm, and the third rotating pin is movably mounted on the second swing arm;

[0013] The first swing arm is composed of a first transverse swing arm and a first oblique swing arm fixedly connected, the first transverse swing arm is provided with a first pin shaft hole and a second pin shaft hole, the first pin shaft hole and the second pin shaft hole are respectively movably installed with a first rotating pin and a second rotating pin, the rear ends of the first rotating pin and the second rotating pin are respectively installed with a first pulley and a second pulley, the first pulley and the second pulley are of the same shape and size, the first oblique swing arm is fixed to the right end of the first transverse swing arm, and the top end of the first oblique swing arm is fixedly connected to the first circular rotating pin;

[0014] The second swing arm has the same structure as the first swing arm. The second swing arm is composed of a second transverse swing arm and a second oblique swing arm fixedly connected. A third pin shaft hole and a fourth pin shaft hole are provided on the second transverse swing arm. A third rotating pin and a fourth rotating pin are movably installed in the third pin shaft hole and the fourth pin shaft hole respectively. A third pulley and a fourth pulley are installed at the rear ends of the third rotating pin and the fourth rotating pin respectively. The third pulley and the fourth pulley have the same shape and size as the first pulley and the second pulley. The second oblique swing arm is fixed to the right end of the second transverse swing arm. The top end of the second oblique swing arm is fixedly connected to the second circular rotating pin.

[0015] The first circular rotating pin and the second circular rotating pin are both rotatably connected to the movable arm, and a first circular hole and a second circular hole are opened at the bottom of the movable arm. The first circular rotating pin and the second circular rotating pin are movably installed in the first circular hole and the second circular hole respectively to form a rotatable connection. The left end of the movable arm is movably connected to the lower end of the pushing block through a hinge, and the upper end of the pushing block is fixedly connected to the push rod of the first cylinder. The right end of the first cylinder is fixedly connected to the guide plate through a hinge, and the guide plate is fixedly installed on the frame by bolt connection or welding.

[0016] The guide plate is provided with two groups of guide grooves, each group of guide grooves consists of a horizontal groove and a vertical groove, the left end of the horizontal groove is connected to the vertical groove by an arc transition, the groove width of the horizontal groove and the vertical groove is adapted to the first pulley and the second pulley, the first pulley and the second pulley are located in the guide groove and form a sliding connection with the guide groove.

[0017] Preferably, the suction cup driving unit is a cylinder, a hydraulic cylinder or a linear motor driving mechanism.

[0018] Furthermore, a feeding roller unit is also provided on the right side of the suction cup, and the feeding roller unit includes a mounting plate, a second cylinder, a connecting bracket, an upper roller, a lower roller, and a roller box. The roller box is a hollow box body, and a lower roller is installed inside the roller box. Both ends of the lower roller are movably mounted on the front and rear end side plates of the roller box through bearings. A square hole is provided on the top of the roller box, and the top of the lower roller is located in the square hole on the top of the roller box, and the top of the lower roller extends upward from the square hole on the top of the roller box. A matching upper roller is provided directly above the lower roller, and both ends of the upper roller are movably mounted on the connecting bracket, and the upper end of the connecting bracket is fixedly connected to the push rod of the second cylinder, and the second cylinder is fixed to the mounting plate by bolts, and the mounting plate is fixedly mounted on the guide plate or the frame.

[0019] Furthermore, the support plate is a lifting support plate, the bottom of which is connected to a linear motion drive mechanism, and the linear motion drive mechanism is a cylinder drive mechanism, a hydraulic cylinder drive mechanism, a linear motor drive mechanism or a motor screw drive mechanism.

[0020] The present invention has the following beneficial effects:

[0021] The support plate of the present invention is provided with neatly stacked cover papers, and a suction cup for adsorbing the cover papers is provided above the support plate, the suction cup is connected to the lower end of a suction rod, the upper end of the suction rod is connected to a vacuum pump through an air suction pipe, and the suction rod is connected to a suction cup driving unit. An air blowing anti-adhesion unit is provided on the side of the support plate.

[0022] When the first cylinder in the suction cup drive unit is started, the push rod of the first cylinder pushes the movable arm to move back and forth through the push block, and the movable arm drives the first swing arm and the second swing arm to swing back and forth through the first circular rotating pin and the second circular rotating pin. Since the first swing arm and the second swing arm are respectively installed with the first pulley, the second pulley, the third pulley, and the fourth pulley at the rear, the first pulley and the second pulley move horizontally and vertically along the guide groove on the guide plate, so that the first swing arm and the second swing arm can swing in combination with horizontal and vertical movements. In addition, since the first swing arm and the second swing arm are connected to the first connecting block and the second connecting block through the first rotating pin and the third rotating pin, and the first connecting block and the second connecting block are fixedly connected to the connecting plate, a suction rod is installed on the connecting plate, and a suction cup is installed at the lower end of the suction rod. Therefore, when the first swing arm and the second swing arm swing in combination with horizontal and vertical movements, the connecting plate, the suction rod and the suction cup can be driven to move horizontally and vertically through the first connecting block and the second connecting block. At the same time, the vacuum pump starts, and the suction cup generates negative pressure suction, thereby sucking the cover paper through the suction cup and transporting it to the feeding roller unit on the right, and then the upper roller and the lower roller send the cover paper to the next process.

[0023] The present invention is different from the existing cover paper feeding device. The present invention adopts a uniquely designed suction cup drive unit, so that the cover paper will not generate large impact and vibration during the transportation process. The cover paper transportation has the advantages of stability, continuous action and low noise, which solves the problems of suction cup shaking, unstable paper transportation and high noise in the prior art. In addition, the present invention is provided with an air blowing anti-adhesion unit on the side of the support plate. When the air pump in the air blowing anti-adhesion unit is started, the neatly stacked cover papers placed on the support plate will be blown through the air blowing pipe, pipe joint and air blowing hole, so that an air gap is generated between each cover paper and the cover paper adjacent to the bottom, preventing the cover papers from sticking to each other, and solving the problems of double paper adhesion, easy jamming and wrinkles on the cover during the cover paper adsorption and transportation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0025] Figure 2 This is a schematic diagram of the structure of the air blowing anti-adhesion unit.

[0026] Figure 3 It is a structural schematic diagram of the suction cup drive unit.

[0027] Figure 4 This is a front view of the suction cup drive unit.

[0028] In the accompanying drawings, 1—frame, 101—bottom beam, 102—left support beam, 103—right support beam, 104—connecting plate, 105—front side plate, 106—rear side plate, 2—fixing rod, 3—supporting plate, 4—suction cup, 5—suction rod, 6—exhaust pipe, 7—suction cup driving unit, 701—connecting plate, 702—first connecting block, 703—second connecting block, 704—first rotating pin, 705—third rotating pin, 706—first lateral swing arm, 707—first oblique swing arm, 708—first pin shaft hole, 709—second pin shaft hole, 710—second rotating pin, 711—first pulley, 712—first circular rotating pin, 713—second lateral swing arm, 714—second oblique swing arm, 715—third pin shaft hole, 716—fourth pin hole, 717—fourth rotating pin, 718—third pulley, 719—second circular rotating pin, 720—moving arm, 721—first circular hole, 722—second circular hole, 723—pushing block, 724—first cylinder, 725—guide plate, 726—guide groove, 8—air blowing anti-adhesion unit, 801—baffle, 802—air blowing hole, 803—air blowing pipe, 804—pipe joint, 805—linear motion driving mechanism, 9—feeding roller unit, 901—mounting plate, 902—second cylinder, 903—connecting bracket, 904—upper roller, 905—lower roller, 906—roller box. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with specific implementation methods. The accompanying drawings are only used for exemplary descriptions and are only schematic diagrams, not actual drawings, and cannot be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0030] like Figure 1-4 As shown, a cover paper feeding device includes a frame 1, a support plate 3, a suction rod 5, a suction cup 4, an air suction pipe 6, an air pump, and a suction cup driving unit 7.

[0031] The frame 1 is composed of a bottom beam 101, a left support beam 102, a right support beam 103, a top plate 104, a front side plate 105, and a rear side plate 106. The left support beam 102 and the right support beam 103 are made of channel steel, steel pipe or square steel. The bottoms of the left support beam 102 and the right support beam 103 are respectively welded with the bottom beam 101, and the bottom beam 101 is made of channel steel or square steel and is perpendicular to the left support beam 102 and the right support beam 103. The top plates 104 are respectively installed on the tops of the left support beam 102 and the right support beam 103 by bolt connection or welding. The front ends of the top plates 104 are fixedly connected to the front side plates 105 by bolt connection or welding, and the rear ends of the top plates 104 are fixedly connected to the rear side plates 106 by bolt connection or welding. The rear side plates 106 are parallel to the front side plates 105 and perpendicular to the top plates 104.

[0032] Two fixing rods 2 are installed on the front side plate 105 by bolt connection or welding. The fixing rods 2 are made of flat steel and are flat rectangular parallelepiped structures. A support plate 3 is installed on the top of the two fixing rods 2 by bolt connection or welding. The support plate 3 is rectangular and made of thin steel plate and is installed horizontally above the front side plate 105.

[0033] Neatly stacked cover paper can be placed on the support plate 3. The cover paper is the paper used to wrap the colored bead tube. A suction cup 4 for adsorbing the cover paper is provided above the support plate 3. The suction cup 4 is a vacuum suction cup or an electromagnetic suction cup. In this embodiment, a circular, trumpet-shaped vacuum suction cup with a depression in the middle is used. The suction cup 4 is installed at the lower end of the suction rod 5. The suction cup 4 is connected to the lower end of the suction rod 5 by a thread or an elastic interference connection. The suction rod 5 is a hollow stainless steel pipe. The suction rod 5 is connected to the suction cup 4. The upper end of the suction rod 5 is connected to the exhaust pipe 6 through a connector. The exhaust pipe 6 is connected to a vacuum pump. The exhaust pipe 6 preferably uses a hollow plastic air pipe.

[0034] like Figure 1 , Figure 2As shown, a blowing anti-adhesion unit 8 is provided on the side of the support plate 3, and the blowing anti-adhesion unit 8 includes a baffle 801, a blowing hole 802, a blowing pipe 803, and an air pump. The baffle 801 is fixed to the fixed rod 2 of the frame 1 by welding or bolting, and the baffle 801 is arranged on the side of the support plate 3, and the baffle 801 is made of a thin steel plate. A plurality of blowing holes 802 are provided on the baffle 801, and the rear end of the blowing holes 802 is provided with an internal thread, and the internal thread is adapted to the external thread on the pipe joint 804, and one end of the pipe joint 804 is threadedly connected to the rear end of the blowing hole 802, and the other end of the pipe joint 804 is connected to the blowing pipe 803, and the blowing pipe 803 preferably adopts a hollow plastic air pipe, and the blowing pipe 803 is connected to the air pump (not shown in the figure), and the front end of each group of blowing holes 802 is facing the cover paper on the support plate 3. It should be noted that the baffle 801 may also be made of a grooved plate, a T-shaped plate or a steel plate of other shapes, and the baffle 801 may also be installed on the support plate 3 by welding or bolting.

[0035] Preferably, the baffle plate 801 is perpendicular to the support plate 3, and two or more groups of air blowing holes 802 are provided on the baffle plate 801, and each group of air blowing holes 802 is arranged vertically. The shape of the air blowing holes 802 is circular, rectangular, elliptical, waist-shaped, slit-shaped, triangular or regular polygonal. Each group of air blowing holes 802 has 1 to 20 air blowing holes, and the edge interval between each air blowing hole 802 and the adjacent air blowing hole 802 is 1 to 5 mm.

[0036] like Figure 1 , Figure 3 , Figure 4 As shown, the suction rod 5 is connected to the suction cup drive unit 7, and the suction cup drive unit 7 includes a first cylinder 724, a push block 723, a movable arm 720, a guide plate 725, a guide groove 726, a first swing arm, a second swing arm, a first pin shaft hole 708, a second pin shaft hole 709, a first pulley 711, a second pulley, a first circular rotating pin 712, a third pin shaft hole 715, a fourth pin shaft hole 716, a third pulley 718, a fourth pulley, a first rotating pin 704, a second rotating pin 710, a third rotating pin 705, a fourth rotating pin 717, a second circular rotating pin 719, a first connecting block 702, a second connecting block 703, and a connecting plate 701.

[0037] The connecting plate 701 is rectangular and made of aluminum plate or steel plate. A threaded hole is provided at the right end of the connecting plate 701. The suction rod 5 is installed in the threaded hole at the right end of the connecting plate 701 by threaded connection. The connecting plate 701 is provided with a first connecting block 702 and a second connecting block 703. The connecting plate 701 is fixedly connected to the bottom of the first connecting block 702 and the second connecting block 703 by welding or bolting. The upper end of the first connecting block 702 is rotatably connected to the first rotating pin 704, and the upper end of the second connecting block 703 is rotatably connected to the third rotating pin 705. The first rotating pin 704 is movably mounted on the first swing arm, and the third rotating pin 705 is movably mounted on the second swing arm.

[0038] The first swing arm is composed of a first transverse swing arm 706 and a first oblique swing arm 707 which are fixedly connected. The first oblique swing arm 707 is fixed to the right end of the first transverse swing arm 706. The angle between the first transverse swing arm 706 and the first oblique swing arm 707 is 100° to 145°. The first transverse swing arm 706 and the first oblique swing arm 707 are integrally cast using cast steel or cast aluminum. The first transverse swing arm 706 is provided with a first pin hole 708 and a second pin hole 709. The first pin hole 708 and the second pin hole 709 are respectively provided with a first rotating pin 704 and a second rotating pin 710 which can rotate. The rear ends of the first rotating pin 704 and the second rotating pin 710 are respectively provided with a first pulley 711 and a second pulley (not shown in the figure). The first pulley 711 and the second pulley have the same shape and size. The lower end of the first oblique swing arm 707 is fixedly connected to the first lateral swing arm 706 by casting, and the top end of the first oblique swing arm 707 is fixedly connected to the first circular rotating pin 712. The first circular rotating pin 712 is circular and is integrally cast with the first oblique swing arm 707 using cast steel or cast aluminum material.

[0039] The second swing arm has the same structural shape as the first swing arm. The second swing arm is composed of a second lateral swing arm 713 and a second oblique swing arm 714 fixedly connected. The second lateral swing arm 713 is provided with a third pin hole 715 and a fourth pin hole 716. The third pin hole 715 and the fourth pin hole 716 are respectively installed with a third rotating pin 705 and a fourth rotating pin 717 that can rotate. The rear ends of the third rotating pin 705 and the fourth rotating pin 717 are respectively installed with a third pulley 718 and a fourth pulley (not shown in the figure). The third pulley 718 and the fourth pulley have the same shape and size as the first pulley 711 and the second pulley. The second oblique swing arm 714 is fixed to the right end of the second lateral swing arm 713. The angle between the second lateral swing arm 713 and the second oblique swing arm 714 is 100° to 145°. The second lateral swing arm 713 and the second oblique swing arm 714 are integrally cast with cast steel or cast aluminum. A second circular rotating pin 719 is disposed at the top end of the second oblique swing arm 714 . The second circular rotating pin 719 is circular and is made of cast steel or cast aluminum and is integrally cast with the second oblique swing arm 714 .

[0040] The first circular rotating pin 712 and the second circular rotating pin 719 are both rotatably connected to the movable arm 720. The movable arm 720 is made of steel plate. The left end of the movable arm 720 is narrower and the right end is wider. The bottom of the movable arm 720 is provided with two open circular holes, namely the first circular hole 721 and the second circular hole 722. The first circular rotating pin 712 at the top of the first oblique swing arm 707 and the second circular rotating pin 719 at the top of the second oblique swing arm 714 are movably installed in the first circular hole 721 and the second circular hole 722 respectively to form a rotatable connection. The left end of the movable arm 720 is movably connected to the lower end of the push block 723 by a hinge or a pin connection. The push block 723 is T-shaped and made of aluminum alloy or stainless steel. The upper end of the push block 723 is fixedly connected to the push rod of the first cylinder 724 by welding or threaded connection. The lower end of the push block 723 is provided with a groove. The left end of the movable arm 720 passes through the groove and is movably connected to the lower end of the push block 723 by a hinge or a pin connection. The first cylinder 724 is installed on the top of the guide plate 725. The right end of the cylinder body of the first cylinder 724 is fixedly connected to the guide plate 725 by a hinge. The guide plate 725 is fixedly installed on the rear side plate 106 of the frame 1 by bolt connection or welding.

[0041] The guide plate 725 is provided with two groups of guide grooves 726, each group of guide grooves 726 consists of a horizontal groove and a vertical groove, the left end of the horizontal groove is connected to the vertical groove by an arc transition, the groove width of the horizontal groove and the vertical groove is adapted to the first pulley 711 and the second pulley, the first pulley 711 and the second pulley are located in the guide groove 726 and form a sliding connection with the guide groove 726.

[0042] It should be noted that the suction cup driving unit 7 is preferred in the present invention. In actual application, the suction cup driving unit 7 can also adopt cylinders, hydraulic cylinders or motors and transmission mechanisms of other structures to drive the suction rod 5 and the suction cup 4 to move.

[0043] like Figure 3 , Figure 4 As shown, a feeding roller unit 9 is also provided on the right side of the suction cup 4, and the feeding roller unit 9 includes a mounting plate 901, a second cylinder 902, a connecting bracket 903, an upper roller 904, a lower roller 905, and a roller box 906. The roller box 906 is a hollow box made of steel plate or aluminum alloy material, and the lower roller 905 is installed inside the roller box 906. The lower roller 905 is cylindrical, with rotating shafts at both ends and friction patterns on the surface. The lower roller 905 is a steel roller, an aluminum alloy roller or a rubber roller, and the two ends of the lower roller 905 are movably mounted on the front and rear side plates of the roller box 906 through bearings. A square hole is provided on the top of the roller box 906, the length of which is greater than the length of the lower roller 905, the top of the lower roller 905 is located in the square hole on the top of the roller box 906, and the top of the lower roller 905 is exposed 5-15mm upward from the square hole on the top of the roller box 906. A matching upper roller 904 is provided directly above the lower roller 905, and both ends of the upper roller 904 are movably mounted on the connecting bracket 903, the upper end of the connecting bracket 903 is fixedly connected to the push rod of the second cylinder 902 by stud connection or welding, and the second cylinder 902 is fixed to the mounting plate 901 by bolts, and the mounting plate 901 is rectangular and made of stainless steel or aluminum alloy, and the mounting plate 901 is fixedly mounted on the guide plate 725 or the frame 1 by bolts or welding.

[0044] It should be noted that the pallet 3 in the present invention can also adopt a lifting pallet, the bottom of which is connected to a linear motion drive mechanism 805, which is a cylinder drive mechanism, a hydraulic cylinder drive mechanism, a linear motor drive mechanism or a motor screw drive mechanism. The linear motion drive mechanism 805 can push the lifting pallet to move vertically up and down, thereby realizing the height adjustment of the pallet 3.

[0045] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A cover paper feeding device, comprising a frame, a support plate, a suction rod, a suction cup, an air suction pipe, an air pump, and a suction cup driving unit, wherein the suction cup driving unit and the support plate are installed on the upper part of the frame, and a suction cup for sucking the cover paper is provided above the support plate, wherein the suction cup is connected to the suction rod, and the suction rod is connected to the suction cup driving unit, and the characteristics are as follows: The suction cup driving unit includes a first cylinder, a pushing block, a movable arm, a guide plate, a guide groove, a first swing arm, a second swing arm, a first pin shaft hole, a second pin shaft hole, a first pulley, a second pulley, a first circular rotating pin, a third pin shaft hole, a fourth pin shaft hole, a third pulley, a fourth pulley, a first rotating pin, a second rotating pin, a third rotating pin, a fourth rotating pin, a second circular rotating pin, a first connecting block, a second connecting block, and a connecting plate; The connecting plate is fixedly connected to the bottom of the first connecting block and the second connecting block, the upper end of the first connecting block is rotatably connected to the first rotating pin, the upper end of the second connecting block is rotatably connected to the third rotating pin, the first rotating pin is movably mounted on the first swing arm, and the third rotating pin is movably mounted on the second swing arm; The first swing arm is composed of a first transverse swing arm and a first oblique swing arm fixedly connected, the first transverse swing arm is provided with a first pin shaft hole and a second pin shaft hole, the first pin shaft hole and the second pin shaft hole are respectively movably installed with a first rotating pin and a second rotating pin, the rear ends of the first rotating pin and the second rotating pin are respectively installed with a first pulley and a second pulley, the first pulley and the second pulley are of the same shape and size, the first oblique swing arm is fixed to the right end of the first transverse swing arm, and the top end of the first oblique swing arm is fixedly connected to the first circular rotating pin; The second swing arm has the same structure as the first swing arm. The second swing arm is composed of a second transverse swing arm and a second oblique swing arm fixedly connected. A third pin shaft hole and a fourth pin shaft hole are provided on the second transverse swing arm. A third rotating pin and a fourth rotating pin are movably installed in the third pin shaft hole and the fourth pin shaft hole respectively. A third pulley and a fourth pulley are installed at the rear ends of the third rotating pin and the fourth rotating pin respectively. The third pulley and the fourth pulley have the same shape and size as the first pulley and the second pulley. The second oblique swing arm is fixed to the right end of the second transverse swing arm. The top end of the second oblique swing arm is fixedly connected to the second circular rotating pin. The first circular rotating pin and the second circular rotating pin are both rotatably connected to the movable arm, the bottom of the movable arm is provided with a first circular hole and a second circular hole, the first circular rotating pin and the second circular rotating pin are movably installed in the first circular hole and the second circular hole respectively and form a rotatable connection, the left end of the movable arm is movably connected to the lower end of the pushing block through a hinge, the upper end of the pushing block is fixedly connected to the push rod of the first cylinder, the right end of the first cylinder is fixedly connected to the guide plate through a hinge, and the guide plate is fixedly installed on the frame by bolt connection or welding; The guide plate is provided with two groups of guide grooves, each group of guide grooves consists of a horizontal groove and a vertical groove, the left end of the horizontal groove is connected to the vertical groove by an arc transition, the groove width of the horizontal groove and the vertical groove is adapted to the first pulley and the second pulley, the first pulley and the second pulley are located in the guide groove and form a sliding connection with the guide groove; A feeding roller unit is also provided on the right side of the suction cup, and the feeding roller unit comprises a mounting plate, a second cylinder, a connecting bracket, an upper roller, a lower roller, and a roller box. The roller box is a hollow box body, and a lower roller is installed inside the roller box. Both ends of the lower roller are movably mounted on the front and rear end side plates of the roller box through bearings. A square hole is provided on the top of the roller box, and the top of the lower roller is located in the square hole on the top of the roller box, and the top of the lower roller extends upward from the square hole on the top of the roller box. A matching upper roller is provided directly above the lower roller, and both ends of the upper roller are movably mounted on the connecting bracket, and the upper end of the connecting bracket is fixedly connected to the push rod of the second cylinder, and the second cylinder is fixed to the mounting plate by bolts, and the mounting plate is fixedly mounted on the guide plate or the frame.

2. A cover paper feeding device according to claim 1, characterized in that: An air blowing anti-adhesion unit is provided on the side of the pallet, and the air blowing anti-adhesion unit includes a baffle, an air blowing hole, an air blowing pipe, and an air pump. The baffle is fixed on the frame or the pallet, and the baffle is arranged on the side of the pallet. A plurality of air blowing holes are provided on the baffle. The rear ends of the air holes are connected to the air pump through the air blowing pipe, and the front ends of the air holes are facing the cover paper on the pallet.

3. A cover paper feeding device according to claim 2, characterized in that: The baffle plate is perpendicular to the supporting plate, and two or more groups of blowing holes are arranged on the baffle plate, and each group of blowing holes is arranged vertically.

4. A cover paper feeding device according to claim 3, characterized in that: The shape of the blowing hole is circular, rectangular, elliptical, waist-shaped, slit-shaped, triangular or regular polygonal.

5. A cover paper feeding device according to claim 3, characterized in that: Each group of blowing holes has 1 to 20 in total, and the edge interval between each blowing hole and the adjacent blowing holes is 1 to 5 mm.

6. A cover paper feeding device according to claim 1, characterized in that: The support plate is a lifting support plate, the bottom of which is connected to a linear motion drive mechanism, which is a cylinder drive mechanism, a hydraulic cylinder drive mechanism, a linear motor drive mechanism or a motor screw drive mechanism.

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