An online fully automatic unpacking system for sheet materials

Abstract

The present invention discloses an online fully automatic unpacking system for sheet materials, which comprises: a frame; a feeding mechanism, which is installed on the frame and extends along a first direction for conveying thousands of packages; a longitudinal belt pushing and cutting mechanism, which is installed on the frame and extends along a second direction on one side of the feeding mechanism, and the second direction is perpendicular to the first direction; a transverse belt pushing and cutting mechanism, which is installed on the frame and extends along the second direction on the other side of the feeding mechanism; wherein the longitudinal belt pushing and cutting mechanism comprises a longitudinal belt pushing and cutting cylinder assembly, a longitudinal belt pushing and cutting pressure plate, and a longitudinal belt rotary cutter, the longitudinal belt pushing and cutting cylinder assembly is fixed to the frame along the first direction, the longitudinal belt pushing and cutting pressure plate comprises two arc-shaped plates and a connecting plate, the two arc-shaped plates are the same in size and shape, the connecting plate is respectively connected to the two arc-shaped plates to form a C-shaped groove, the C-shaped groove opens toward the feeding structure, and the longitudinal belt rotary cutter is located in the groove.

Description

Technical Field

[0001] The present invention relates to an online fully automatic unpacking system for sheet materials, belonging to the technical field of financial equipment. Background Art

[0002] Common sheet materials include banknotes, vouchers, and other securities. During the packaging process, one hundred sheets of these materials are neatly aligned and stacked into a bundle, which is called a "hundred-pack." Ten hundred-pack bundles are stacked together and sealed with plastic (PP) tape, creating a "thousand-pack." A "thousand-pack" is secured longitudinally with a single tape and transversely with two tapes. Then, at the intersection of the transverse and longitudinal tapes, two identical sheets of sealing paper are placed between the three tapes, aligned and affixed together to seal the package.

[0003] Sheet material processing centers and sheet material manufacturers face a large volume of sheet material sorting tasks. Unpacking sheet materials requires removing the straps and belts that bind them. Currently, this task is performed entirely manually using tools and other tools. This is labor-intensive, inefficient, and carries risks such as cuts and lacerations.

[0004] In the Chinese utility model patent number ZL 202023161778.0, an automatic unpacking device for cigarette packaging paper stacks is disclosed, including a frame; a paper stack positioning and storage device, which is installed on the frame and has a positioning space for accommodating the packaging paper stack; a paper cutting mechanism is arranged on one side of the paper stack positioning and storage device, for cutting off the wrapping tape of the packaging paper stack; a conveying device is installed on the frame, with its input end located below the paper stack positioning and storage device, and its output end is connected to the entrance of the cigarette packaging machine, for conveying the unpacked packaging paper stack to the cigarette packaging machine.

[0005] However, since sheet materials are packaged using multiple crossed paper strips, automated unpacking requires careful consideration of not damaging the sheet materials (e.g., securities), cutting each of the paper strips, and maintaining the overall shape of the sheet materials after unpacking. Existing technologies still cannot fully meet these requirements. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide an online fully automatic unpacking system for sheet materials.

[0007] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0008] An online fully automatic unpacking system for sheet materials, wherein the sheet materials are bundled into thousands of packages with longitudinal and / or transverse straps, comprising at least:

[0009] frame;

[0010] A feeding mechanism, mounted on the frame and extending along a first direction, for conveying thousands of packages;

[0011] a longitudinal strip pushing and cutting mechanism, mounted on the frame and extending along a second direction on one side of the feeding mechanism, the second direction being perpendicular to the first direction;

[0012] The transverse belt pushing and cutting mechanism is mounted on the frame and extends along the second direction on the other side of the feeding mechanism.

[0013] Among them, the longitudinal belt pushing and cutting mechanism includes a longitudinal belt pushing and cutting cylinder assembly, a longitudinal belt pushing and cutting pressure plate, and a longitudinal belt rotary cutter; the longitudinal belt pushing and cutting cylinder assembly is fixed to the frame along the first direction, and the longitudinal belt pushing and cutting pressure plate includes two arc-shaped plates and a connecting plate. The two arc-shaped plates are exactly the same in size and shape. The connecting plate is connected to the two arc-shaped plates respectively to form a C-shaped groove. The opening of the C-shaped groove faces the feed structure, and the longitudinal belt rotary cutter is located in the groove.

[0014] Preferably, the rotation axis of the longitudinal belt rotary cutter is parallel to the first direction; and the two arc-shaped plates are parallel to the first direction.

[0015] Preferably, the longitudinal belt rotary cutter is located in the plane where the symmetry line of the two arc-shaped plates is located.

[0016] Preferably, the transverse belt pushing and cutting mechanism includes a transverse belt pushing and cutting mechanism mounting plate, a first transverse belt rotating cutter, and a transverse belt pushing and cutting push plate; the transverse belt pushing and cutting mechanism mounting plate is provided with a hole, and the rotating axis of the first transverse belt rotating cutter is parallel to the first direction so that its blade can extend from the hole.

[0017] Preferably, the transverse belt pushing and cutting plate includes two thick sheet-like members; the two thick sheet-like members have sheet-like arc surfaces, the symmetry lines of the arc surfaces are parallel to the second direction, and can extend out of the hole.

[0018] Preferably, the online fully automatic unpacking system for sheet materials also includes a second horizontal belt rotary cutter; the second horizontal belt rotary cutter has the same shape and size as the first horizontal belt rotary cutter, and the first horizontal belt rotary cutter and the second horizontal belt rotary cutter are symmetrically fixed on both sides of the horizontal belt pushing plate.

[0019] Preferably, the online fully automatic unpacking system for sheet materials also includes a strap removal mechanism; the strap removal mechanism includes a strap removal mechanism mounting base, a rotary arm driver horizontally mounted on the strap removal mechanism mounting base, a rotary arm rotatable in a horizontal plane mounted on a rotating shaft of the rotary arm driver, a fixed gripper fixed on the top of the rotary arm, and a movable gripper installed in cooperation with the fixed gripper.

[0020] Preferably, the online fully automatic unpacking system for sheet materials also includes a waist strip cutting mechanism; the waist strip cutting mechanism includes a cutting frame installed on the frame, a waist strip rotary cutter driver horizontally fixed on the top of the cutting frame, and a waist strip rotary cutter assembly horizontally fixed on the cutting frame and driven by the waist strip rotary cutter driver.

[0021] Preferably, the online fully automatic unpacking system for sheet materials also includes a waist strip removal mechanism; the waist strip removal mechanism includes a waist strip removal mounting plate horizontally arranged on the frame, a removal cylinder assembly vertically fixed below the waist strip removal mounting plate and capable of reciprocating in the vertical direction, and a hook assembly vertically fixed at the moving end of the removal cylinder assembly.

[0022] Preferably, the online fully automatic unpacking system for sheet materials also includes an adjustable baffle; the adjustable baffle is fixed to the side of the feeding mechanism and extends along the first direction to adjust the horizontal installation position of the adjustable baffle in the second direction.

[0023] Compared with the prior art, the present invention has the following technical effects:

[0024] (1) Automatic unpacking is achieved through automatic cutting of horizontal and vertical straps, and the removed horizontal and vertical straps can be automatically removed or collected. Moreover, the system can be connected with other processes of the assembly line, thereby achieving full automation of the entire assembly line and improving the security of the financial industry.

[0025] (2) Multiple adjustable mechanisms are provided to adapt to the unpacking of sheet materials of different sizes;

[0026] (3) The combination of arc-shaped push arm and rolling cutter realizes the function of fully automatic sheet material unpacking without manual intervention under the premise of ensuring that the sheet material is not damaged, thereby improving production efficiency;

[0027] (5) During the unpacking process, the package limiting mechanism can automatically reset the arrangement of the sheet materials, which is convenient for subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic structural diagram of an online fully automatic unpacking system for sheet materials provided by an embodiment of the present invention;

[0029] Figure 2 for Figure 1 , schematic diagram of the structure of the feeding mechanism;

[0030] Figure 3 for Figure 1 Schematic diagram of the structure of the longitudinal belt pushing and cutting mechanism;

[0031] Figure 4 for Figure 1 , a schematic diagram of the structure of the output pushing mechanism;

[0032] Figure 5 for Figure 1 Middle, the structural diagram of the transverse belt pushing and cutting mechanism;

[0033] Figure 6 for Figure 5 , an enlarged schematic diagram of the lifting end structure;

[0034] Figure 7 for Figure 1 Schematic diagram of the structure of the longitudinal belt limiting mechanism;

[0035] Figure 8 for Figure 1 Middle, the structural diagram of the horizontal belt limiting mechanism;

[0036] Figure 9 for Figure 1 , schematic diagram of the structure of the band removal mechanism;

[0037] Figure 10 for Figure 1 3, schematic diagram of the structure of the waist cutting mechanism;

[0038] Figure 11 for Figure 1 Schematic diagram of the structure of the waist strip removal mechanism. DETAILED DESCRIPTION

[0039] The technical content of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] like Figure 1 As shown, an embodiment of the present invention discloses an online fully automatic unpacking system for sheet materials, including a frame 1, a feeding mechanism 2, a longitudinal belt pushing and cutting mechanism 3, a transverse belt pushing and cutting mechanism 4, a belt removing mechanism 5, an output pushing mechanism 6, a transverse belt limiting mechanism 7, a longitudinal belt limiting mechanism 8, a waist strip cutting mechanism 9, a waist strip removing mechanism 10, an output channel baffle 11, and a feed limiting baffle 12.

[0041] In order to clearly illustrate the working mode of the embodiment of the present invention, Figure 1 Schematically represent a thousand packages 131 and the sheet material 132 after unpacking. Here, just schematically represent the sheet material bag after the sheet material is tied up by the cross-shaped horizontal band and the strip-shaped longitudinal band of the sheet material with the thousand packages 131, but do not constitute a restriction to the sheet material bag.

[0042] For the convenience of description, it is defined here that the plane on which the feeding mechanism 2 conveys the thousand packages 131 is located is the working surface; within the working surface, the feeding direction of the feeding mechanism 2 is the first direction, and the pushing direction of the longitudinal belt pushing mechanism 3 perpendicular to this direction is the second direction.

[0043] After being pushed out of the feed mechanism 2, the bales 131 move linearly along the second direction on the work surface to the system output. An output channel baffle 11 is vertically positioned along the side of the frame 1 along the second direction. This baffle 11 limits the movement of the bales 131 and prevents the unpacked sheet material 132 from scattering and separating. A feed limit baffle 12 is positioned at the end of the feed mechanism 2 to control the position of the bales 131 and facilitate subsequent processing.

[0044] like Figure 2 As shown, the feed mechanism 2 includes a one-way conveyor belt mechanism 201 and an adjustable baffle 202. The one-way conveyor belt mechanism 201 is a longitudinally elongated conveyor belt, arranged horizontally. The adjustable baffle 202 is a bent sheet metal component, secured to the top of the side baffle of the one-way conveyor belt mechanism 201 via narrow, adjustable mounting holes. This allows the horizontal mounting position of the adjustable baffle 202 to be adjusted in the second direction, thereby accommodating the processing of packages 131 of varying sizes. The one-way conveyor belt mechanism 201 can simultaneously accommodate multiple packages 131 to be processed, acting as an input buffer.

[0045] like Figure 3 As shown, the longitudinal belt pushing and cutting mechanism 3 includes a longitudinal belt pushing and cutting cylinder assembly 301 horizontally fixed to the frame 1, a longitudinal belt pushing and cutting pressure plate 302, a longitudinal belt rotary cutter 303, a longitudinal belt rotary cutter driving assembly 304, and a thousand-pack baffle 305.

[0046] The longitudinal belt pushing and cutting cylinder assembly 301 is horizontally arranged on the side of the feeding mechanism 2, with its moving end close to the feeding mechanism 2 and reciprocating in the second direction above the working surface.

[0047] In one embodiment of the present invention, the longitudinal belt pushing and cutting plate 302 is fixed to the moving end of the longitudinal belt pushing and cutting cylinder assembly 301 and reciprocates with it, thereby being able to push the thousand bags 131 directly in front of its moving direction to move in the second direction. The longitudinal belt pushing and cutting plate 302 includes two arc-shaped plates and a rectangular connecting plate. The two arc-shaped plates are exactly the same in size and shape, and are surrounded by a circular arc edge and a straight edge in terms of the outer contour; the two opposite straight edges of the connecting plate are respectively connected to the straight edges of the two arc-shaped plates, and the two arc-shaped plates are on the same side of the rectangular connecting plate and perpendicular to the connecting plate, forming a C-shaped groove in the vertical direction, and the opening of the C-shaped groove faces the feed structure 2.

[0048] The two curved plates of the longitudinal belt pushing and pressing plate 302 are parallel to the working surface, and both curved plates have a symmetry line parallel to the working surface. The longitudinal belt pushing and pressing plate 302 contacts and presses the bag 131 through the curved surfaces of the two curved plates, causing one side of the bag 131 to deform into a curved surface accordingly.

[0049] The length of the longitudinal tape cutting plate 302 in the first direction is greater than or equal to two-thirds of the dimension (L) of the thousand-bag 131 in the first direction when it is traveling on the feed mechanism 2. In the vertical direction, the length of the longitudinal tape cutting plate 302 is approximately three-quarters of the size of the thousand-bag 131. The longitudinal tape cutting plate 302 is installed at an appropriate height so that the longitudinal tape of the thousand-bag 131 is vertically positioned between the two horizontal curved plates of the longitudinal tape cutting plate 302, and the longitudinal tape rotary cutter 303 disposed between the two horizontal curved plates is vertically aligned.

[0050] In one embodiment of the present invention, the longitudinal belt rotary cutter 303 is disc-shaped, with a blade having an obtuse cross-section on its edge. The longitudinal belt rotary cutter 303 is rotatably positioned between the two horizontal curved plates of the longitudinal belt pushing and cutting pressure plate 302, within the groove in which the longitudinal belt rotary cutter is positioned. Furthermore, the axis of rotation of the longitudinal belt rotary cutter 303 is parallel to the first direction. The vertical plane containing the center point of the disc-shaped longitudinal belt rotary cutter 303 is coplanar with the line of symmetry between the two curved plates. This ensures that the longitudinal belt rotary cutter 303 is located in the plane containing the line of symmetry between the curved plates.

[0051] The vertical projection of the longitudinal rotary cutter 303 on the working surface is further away from the one-way conveyor mechanism 201 than the vertical projection of the curved plate of the longitudinal push-cut plate 302 on the working surface. In other words, when the thousand-pack 131 is pushed by the longitudinal push-cut plate 302, the longitudinal rotary cutter 303 does not contact the sheet material. This ensures that the longitudinal rotary cutter 303 does not damage the sheet material.

[0052] In one embodiment of the present invention, the longitudinal belt rotary cutter drive assembly 304 is fixed to the side of the rectangular connecting plate of the longitudinal belt pushing and cutting plate 302 away from the one-way conveyor belt mechanism 201; it can drive the longitudinal belt rotary cutter 303 to rotate at high speed around the horizontal axis so that it cuts off the longitudinal belt it contacts.

[0053] The thousand-pack baffle 305 is a horizontally arranged strip plastic part, one end of which is fixed to the side of the longitudinal belt pushing and cutting plate 302 facing the feeding mechanism 2. The thousand-pack baffle 305 can prevent the thousand packs to be removed in the feeding mechanism 2 from interfering with the normal operation of the longitudinal belt pushing and cutting mechanism 3.

[0054] like Figure 4 As shown, the output pushing mechanism 6 includes a main pushing cylinder assembly 601 horizontally fixed on the side of the output channel baffle 11, a telescopic cylinder assembly 602 horizontally arranged perpendicular to the main pushing cylinder assembly 601, a right-angle connector 603 fixing the telescopic cylinder assembly 602 on the slider of the main pushing cylinder assembly 601, and a push rod 604 parallel to the telescopic cylinder assembly 602 and slidably installed on the telescopic cylinder assembly 602 along a first direction.

[0055] The push rod 604 extends perpendicularly to the main push cylinder assembly 601 along a first direction. The length of the horizontal push rod 604 matches the dimensions of the sachet 131 in the first direction. Its height relative to the working surface is slightly higher than the upper edge of the output channel baffle 11 and lower than the upper surface of the sachet 131 on the working surface. Driven by the main push cylinder assembly 601, the horizontal push rod 604 can propel the sachet 131 in a second direction toward the system output or in the opposite direction. It can also be driven by the telescopic cylinder assembly 602 to insert and remove the sachet 131 along the first direction.

[0056] Figure 5 It is a structural diagram of the transverse belt pushing and cutting mechanism 4, which includes a transverse belt pushing and cutting mechanism mounting plate 401, a first transverse belt rotary cutter 402, a transverse belt pushing and cutting push plate 403, an auxiliary push plate 404, a second transverse belt rotary cutter 405, a second transverse belt rotary cutter driving assembly 406, a first transverse belt rotary cutter driving assembly 407, and a transverse belt pushing and cutting cylinder assembly 408 that reciprocates in the vertical direction.

[0057] The mounting plate 401 of the transverse belt pushing and cutting mechanism is a rectangular plate with a cross-shaped hole 400 formed therein. The upper surface of the plate coincides with the working surface and the plate is horizontally mounted on the frame 1 .

[0058] The first horizontal belt rotary cutter 402 is disc-shaped, with a blade having an obtuse cross-section on the edge of the disc. Its rotation axis is parallel to the first direction so that its blade can extend from the hole 400 and be higher than the working surface.

[0059] In one embodiment of the present invention, the transverse belt cutting push plate 403 includes two vertically arranged thick sheet members 4031 and a vertical base 4032. The thick sheet members 4031 are connected to form a whole by the base 4032 at the bottom. The two thick sheet members have a sheet-like curved surface, the line of symmetry of which is parallel to the second direction, and can extend out of the hole 400 to deform the side of the bag 131 directly above the hole 400 into a curved surface. Its function is similar to that of the longitudinal belt cutting pressure plate 302. The transverse belt cutting push plate 403 is used to cut the transverse belt, and the longitudinal belt cutting pressure plate 302 is used to cut the longitudinal belt. The transverse belt and the longitudinal belt are respectively arranged on different sides of the bag 131 in different directions.

[0060] A thick auxiliary push plate 404 is installed in the groove formed between the two thick sheet members 4031 of the horizontal belt pushing and cutting push plate 403. The size of the horizontal belt pushing and cutting push plate 403 in the first direction is approximately three-quarters of the size of the bag 131 in the first direction; the size of the horizontal belt pushing and cutting push plate 403 in the second direction is approximately one-sixth of the size of the bag 131 in the second direction. This ensures that the side surface of the bag 131 directly above the hole 400 is deformed into a sufficiently curved arc. This ensures that the distance separating the horizontal belt from the sheet material directly above the first horizontal belt rotary cutter 402 and the second horizontal belt rotary cutter 405 is sufficient to allow the second horizontal belt rotary cutter 405 or the first horizontal belt rotary cutter to cut the horizontal belt without damaging the sheet material.

[0061] The shape and size of the second horizontal band rotary cutter 405 are exactly the same as those of the first horizontal band rotary cutter 402. The two are symmetrically arranged on both sides of the horizontal band pushing plate 403. The distance between the two is equal to the distance between the two horizontal bands cut on the thousand-pack 131, so that the two horizontal bands can be cut at the same time.

[0062] The first horizontal belt rotary cutter drive assembly 406 and the second horizontal belt rotary cutter drive assembly 407 are symmetrically fixed vertically on both sides of the horizontal belt cutting push plate 403. The first horizontal belt rotary cutter 402 and the second horizontal belt rotary cutter 405 are respectively installed on the top of the two horizontal belts, driving them to rotate at high speed around the horizontal axis to cut the two horizontal belts in contact.

[0063] The horizontal belt cutting cylinder assembly 408 is vertically fixed to the bottom surface of the horizontal belt cutting mechanism mounting plate 401. The bottom of the vertically mounted horizontal belt cutting push plate 403 is fixed to the top of the movable end of the horizontal belt cutting cylinder assembly 408. Driven by the horizontal belt cutting cylinder assembly 408, the first horizontal belt rotary cutter 402, the second horizontal belt rotary cutter 405, the horizontal belt cutting push plate 403, and the auxiliary push plate 404, as a combined unit, synchronously reciprocate vertically through the hole in the center of the horizontal belt cutting mechanism mounting plate 401.

[0064] like Figure 5 and Figure 6 As shown, the top of the transverse belt pushing plate 403 is an arc surface, which can make the lifted bag produce appropriate deformation, making it easy for the two transverse belts on both sides to separate from the surface of the bag and then be reliably cut off, thus preventing damage to the sheet material.

[0065] An auxiliary push plate 404 is installed in the top groove of the horizontal belt pushing and cutting push plate 403. The auxiliary push plate 404 is a thick rectangular plate with a flat top. It is restricted to a small vertical reciprocating range by its own limiting holes, horizontally arranged pins 409, and vertically arranged guide shafts 412. A first elastic member 410 and a second elastic member 411 are installed vertically between the bottom surface of the auxiliary push plate 404 and the bottom surface of the top groove of the horizontal belt pushing and cutting push plate 403.

[0066] Under the force of the first and second elastic members 410 and 411, the flat upper support surface of the auxiliary push plate 404 is flush with the top end surface of the horizontal strip cutting push plate 403, preventing the sliding bag 131 from getting stuck in the hole in the middle of the horizontal strip cutting mechanism mounting plate 401. When the horizontal strip cutting push plate 403 lifts the bag 131, the vertical downward pressure of the bag 131 causes the auxiliary push plate 404 to retract into the groove of the horizontal strip cutting push plate 403, preventing it from interfering with the deformation of the bag 131. At this time, the two horizontal strips of the bag 131 relax and separate from the sheet material body, then contact and are cut by the first and second horizontal strip rotary cutters 402 and 405.

[0067] like Figure 7 As shown, the longitudinal belt limiting mechanism 8 includes a longitudinal belt limiting cylinder assembly 801 that reciprocates in the vertical direction, a longitudinal belt limiting block 802 fixed to the moving end head of the longitudinal belt limiting cylinder assembly 801 and can reciprocate with it in the vertical direction, a rubber band group 803 fixed on the limiting contact surface of the longitudinal belt limiting block 802 in the horizontal direction, and a right-angle mounting seat 804 for vertically fixing the longitudinal belt limiting cylinder assembly 801 on the top end face of the transverse belt limiting mechanism 7.

[0068] The contact surface between the longitudinal belt limit block 802 and the bag 131 is an inwardly concave arc surface, which is consistent with the shape of the convex pushing contact surface of the longitudinal belt pushing and cutting plate 305; when the two are at the same height, the bag 131 produces sufficient deformation under the squeezing of the two, causing the longitudinal belt of the bag in the groove of the longitudinal belt pushing and cutting plate 305 to detach from the surface of the bag 131 and be completely cut off by the longitudinal belt rotating cutter 303.

[0069] The rubber band set 803 can restore the sheet material obtained by removing the band to a neat arrangement, which is convenient for subsequent processing.

[0070] The installation position of the longitudinal belt limiting mechanism 8 makes the two transverse belts limited by the limiting package 131 thereof aligned with the first transverse belt rotary cutter 402 and the second transverse belt rotary cutter 405 respectively.

[0071] like Figure 8 As shown, the transverse belt limiting mechanism 7 includes a transverse belt limiting block 701 arranged just above the movement path of the bag, and the transverse belt limiting block 701 is fixed to a limiting block mounting support 702 on the frame 1.

[0072] The contact surface between the horizontal belt limiting block 701 and the bag 131 is a concave arc surface, and the shape of the arc surface is consistent with the raised lifting surface at the top of the horizontal belt pushing plate 403, and the two are aligned in position. Therefore, under the vertical extrusion of the horizontal belt limiting mechanism 7 and the horizontal belt pushing mechanism 4, the bag 131 whose longitudinal belt is cut off is deformed on its bottom surface to form an arc surface, so that the two horizontal belts are respectively in contact with the rotating edges of the first horizontal belt rotating cutter 402 and the second horizontal belt rotating cutter 405 and are completely cut off. Its cutting principle is the same as the principle of the longitudinal belt pushing plate 302 and the longitudinal belt rotating cutter 303 cooperating to achieve longitudinal belt cutting. Both use two components (arc plates) with arc surfaces that are spaced apart to deform one side of the bag 131 into an arc surface, so that the longitudinal belt or the horizontal belt is separated from the side, and then the cutter located between the two components is used for cutting. Therefore, it will not be described here.

[0073] like Figure 9 As shown, the band removal mechanism 5 includes a band removal mechanism mounting base 501 mounted on the output channel baffle 11, a swing arm driver 502 mounted horizontally on the band removal mechanism mounting base 501, a swing arm 503 mounted on the rotating shaft of the swing arm driver 502 and rotatable in a horizontal plane, a fixed gripper 504 fixed at the top of the swing arm 503, a rotating shaft 505 fixed to the swing arm 503 and arranged horizontally side by side, a movable gripper 506 fixed at the head end of the rotating shaft 505 and cooperating with the fixed gripper 504, and a swing arm 503 fixed on the rotating shaft 505. The rocker arm 507 at the tail end, the tension spring 508 connected to one end of the rocker arm 507, the spring fixing plate 509 connected to the other end of the tension spring 508, the belt removal support plate 510 vertically installed on the belt removal mechanism mounting base 501, the belt removal spring 511 vertically fixed to the middle of the belt removal support plate 510, the belt removal bracket 512 vertically fixed to the end of the belt removal support plate 510, the rubber band 513 vertically fixed on the belt removal bracket 512, the clamping top plate 514 and the loose claw top plate 515 installed on the upper end surface of the rotary arm driver 502.

[0074] The rocker arm 507 rotates around the central rotating shaft 505, one end of which is connected to the spring 508; the other end is free.

[0075] The spring fixing plate 509 is fixed to the rotating shaft of the swing arm driver 502, located below the swing arm 503. The tension spring 508 and the rotating shaft 505 are arranged in the same vertical plane. Therefore, when the swing arm 507 rotates to either side of this vertical plane, the tension spring 508 applies two diametrically opposed torques to the rotating shaft 505, ultimately resulting in the effect of tightening the strap and completely loosening the strap.

[0076] Driven by the rotary arm driver 502, the rotary arm 503 rotates toward the clamping top plate 514 and the clamping top plate 514 pushes the rocker arm 507 to rotate from under the rotary arm 503, thereby driving the coaxial movable gripper 506 to rotate toward the fixed gripper 504 and close together with it, and under the tension of the tension spring 508 connected to the top of the rocker arm 507, the strap is clamped.

[0077] Driven in the opposite direction by the arm driver 502, the arm 503 rotates toward the release claw top plate 515. The release claw top plate 515 pushes the rocker arm 507 from below the arm 503 to rotate in the opposite direction, thereby driving the coaxial movable gripper 506 to rotate away from the fixed gripper 504 and form a sufficient opening angle with it. The tension of the tension spring 508 connected to the top of the rocker arm 507 can reliably release the strap.

[0078] In one embodiment of the present invention, a rubber block may be provided on the contact surface between the movable gripper 506 and the fixed gripper 504 to increase the lateral friction force, thereby preventing the strap from sliding or even falling off during the unpacking process.

[0079] In the release position of the strap, the stripping spring 511 and the rubber band 513 block the movement of the strap on both sides of the fixed gripper 504 and the movable gripper 506, and make the strap completely free from the restriction, fall freely and be excluded from the online fully automatic unpacking system of sheet materials.

[0080] like Figure 10 As shown, the waist strip cutting mechanism 9 includes a cutting frame 901 installed on the output channel baffle 11, a waist strip rotary cutter driver 902 fixed horizontally on the top of the cutting frame 901, and a waist strip rotary cutter assembly 903 fixed horizontally on the cutting frame 901 and driven by the waist strip rotary cutter driver 902.

[0081] The mounting hole at the bottom of the cutting frame 901 is an oblong hole, which is convenient for adjusting its mounting height to meet the processing requirements of sheet materials of different sizes and specifications.

[0082] The waist strip rotary cutter assembly 903 is set just above the bag movement path and is used to cut the sheet material into waist strips. The blade section of the waist strip rotary cutter assembly 903 is obtuse to prevent damage to the sheet material.

[0083] like Figure 11As shown, the waist strip removal mechanism 10 includes a waist strip removal mounting plate 1001 whose upper surface coincides with the working surface and is horizontally arranged on the frame 1, a removal cylinder assembly 1002 vertically fixed below the waist strip removal mounting plate 1001 and capable of reciprocating in the vertical direction, and a hook assembly 1003 vertically fixed to the movable end of the removal cylinder assembly 1002. The hook of the hook assembly 1003 can extend out of the upper surface of the waist strip removal mounting plate 1001. After the cut sheet material waist strips are hooked by the hook assembly 1003, the hook assembly 1003 moves vertically downward to pull the waist strips out of the sheet material online fully automatic unpacking system, allowing them to fall off freely, and finally the hook assembly 1003 moves vertically upward to extend its top hook out of the upper surface of the waist strip removal mounting plate 1001 again.

[0084] The positional relationship of each mechanism in the online fully automatic unpacking system for sheet materials provided by the present invention is described below.

[0085] The feed mechanism 2 is horizontally fixed to the frame 1 and located at the system input. A feed limit baffle 12 is installed at the end of the feed mechanism 2's feed direction. A horizontally reciprocating longitudinal strip pushing and cutting mechanism 3 is installed on the side of the feed mechanism 2 near the feed limit baffle 12. The feed direction of the feed mechanism 2 and the pushing direction of the longitudinal strip pushing and cutting mechanism 3 are perpendicular in the horizontal plane.

[0086] On the other side of the feed mechanism 2, opposite the longitudinal strap pushing and cutting mechanism 3, along the movement path of the bag 131, and close to the side of the feed mechanism 2, the transverse strap pushing and cutting mechanism 4 and the waist strip removal mechanism 10 are connected together through the frame 1 front and back, with their upper surfaces overlapping the working surface. Output channel baffles 11 are installed on both sides and at the end of the combined upper surface of the two mechanisms. The strap removal mechanism 5, transverse strap limiting mechanism 7, longitudinal strap limiting mechanism 8, and waist strip cutting mechanism 9 are fixed in sequence on the same side of the movement path of the bag 131; the output pushing mechanism 6 is fixed on the other side.

[0087] The rotary arm of the band removal mechanism 5 can rotate in both positive and negative directions in a horizontal plane, and its rotation range covers a 180° horizontal interval opposite to the second direction.

[0088] In order to illustrate the working principle of the present online fully automatic unpacking system for sheet materials, the working process is now described as follows.

[0089] The package 131 to be processed is placed with the sealing surface facing the input end of the system, and then placed into the feeding mechanism 2; the feeding mechanism 2 conveys the package 131 horizontally to the front of the feed limit baffle 12, and is in close contact with the feed limit baffle 12. Since the longitudinal belt rotary cutter 303 is located in the plane where the symmetry line of the arc plate is located, when the side of the package 131 is pushed into an arc surface by the two arc plates arranged above and below, the strap located in the middle of the package 131 is not subjected to force and is not deformed (not pushed). At this time, the position of the strap located in the middle of the package 131 protrudes relative to the arc surface of the package 131, that is, the strap is separated from the side of the package 131. At this time, the longitudinal belt rotary cutter 303 can cut the strap without damaging the sheet material.

[0090] The push rod 604 of the output pushing mechanism 6 moves out of the movement path of the thousand packages 131 and stops at the initial position close to the feeding mechanism 2; the longitudinal belt limiting block 802 of the longitudinal belt limiting mechanism 8 moves vertically downward, then stops and is limited on the movement path of the thousand packages 131.

[0091] Then, the longitudinal belt pushing and cutting mechanism 3 pushes the thousand-bag 131 into the upper surface of the transverse belt pushing and cutting mechanism mounting plate 401, and then cooperates with the longitudinal belt limit block 802 to squeeze the thousand-bag 131; after the longitudinal belt pushing and cutting mechanism 3 cuts off the longitudinal belt of the thousand-bag 131, it withdraws from the working surface of the feeding mechanism 2, thereby returning to its initial state.

[0092] The push rod 604 of the output pushing mechanism 6 is vertically inserted into the movement path of the thousand-pack 131 along the first direction; the horizontal belt pushing and cutting mechanism 4 moves vertically upward, lifts the thousand-pack 131, and is limited by the horizontal belt limiting mechanism 7 just above, and the thousand-pack 131 is squeezed and deformed; the two horizontal belts of the thousand-pack 131 are cut off by the horizontal belt pushing and cutting mechanism 4; the horizontal belt pushing and cutting mechanism 4 moves vertically downward and retracts under the working surface; the rotary arm 503 of the strap removing mechanism 5 rotates from the outside of the output channel to the output channel to the clamping position; the fixed gripper 504 of the strap removing mechanism 5 is clamped with the movable gripper 506 After the band is tied, the rotary arm 503 of the band removal mechanism 5 rotates in the opposite direction and releases the band at the band release position; then, the longitudinal band limiting block 802 of the longitudinal band limiting mechanism 8 moves vertically upward and moves out of the movement path of the thousand-pack 131; the output pushing mechanism 6 pushes the tens and hundreds of packs obtained after the band is removed to move in the second direction, and the waist strips are first cut off by the waist strip cutting mechanism 9; then, the waist strips are removed by the waist strip removal mechanism 10; finally, the unpacked sheet material 132 is obtained at the output end of the system; finally, the push rod 604 of the output pushing mechanism 6 returns to the initial position, ready to push the next thousand-pack.

[0093] The above describes in detail the online fully automatic unpacking system for sheet materials provided by the present invention. For those skilled in the art, any obvious changes made thereto without departing from the essence of the present invention will constitute an infringement of the patent rights of the present invention and will result in corresponding legal liability.

Claims

1. An online fully automatic unpacking system for sheet materials, wherein the sheet materials are bundled into thousands of packages with longitudinal and / or transverse straps, characterized in that At least: frame; A feeding mechanism, mounted on the frame and extending along a first direction, for conveying thousands of packages; a longitudinal strip pushing and cutting mechanism, mounted on the frame and extending along a second direction on one side of the feeding mechanism, the second direction being perpendicular to the first direction; A longitudinal belt limiting mechanism is connected to the frame and can be stopped and limited on the movement path of the thousand bags; a transverse belt pushing and cutting mechanism, mounted on the frame and extending along a second direction on the other side of the feeding mechanism; Band removal mechanism; in, The longitudinal strip pushing and cutting mechanism includes a longitudinal strip pushing and cutting cylinder assembly, a longitudinal strip pushing and cutting pressure plate, and a longitudinal strip rotary cutter; the longitudinal strip pushing and cutting cylinder assembly is fixed to the frame along the first direction; the longitudinal strip pushing and cutting pressure plate includes two arc-shaped plates and a connecting plate; the two arc-shaped plates are exactly the same in size and shape; the connecting plate is connected to the two arc-shaped plates and forms a C-shaped groove, the C-shaped groove opening faces the feed structure, and the longitudinal strip rotary cutter is located in the groove; The rotation axis of the longitudinal belt rotary cutter is parallel to the first direction; The two arc-shaped plates are parallel to the first direction; The longitudinal belt limiting mechanism includes a longitudinal belt limiting cylinder assembly, a longitudinal belt limiting block and a rubber band assembly; wherein, The longitudinal belt limiting cylinder assembly is connected to the frame, and the longitudinal belt limiting block is fixed to the movable end head of the longitudinal belt limiting cylinder assembly, and can reciprocate in the vertical direction to enter or move out of the movement path of the thousand bag; the rubber band assembly is fixed to the limiting contact surface of the longitudinal belt limiting block in the horizontal direction; the limiting contact surface of the longitudinal belt limiting block is an inwardly concave arc surface, which is consistent with the shape of the convex pushing contact surface of the longitudinal belt pushing and pressing plate; the structural design of the longitudinal belt limiting block and the longitudinal belt pushing and pressing plate is that when the two are at the same height, the thousand bag can produce sufficient deformation under the squeezing of the two, so that the strap of the thousand bag in the groove of the longitudinal belt pushing and pressing plate can be detached from the surface of the thousand bag and completely cut off by the longitudinal belt rotating cutter; The strap removal mechanism includes a strap removal mechanism mounting base, a rotary arm driver horizontally mounted on the strap removal mechanism mounting base, a rotary arm rotatable in a horizontal plane mounted on a rotating shaft of the rotary arm driver, a fixed gripper fixed on the top of the rotary arm, and a movable gripper mounted in coordination with the fixed gripper.

2. The online fully automatic unpacking system for sheet materials according to claim 1, characterized in that: The longitudinal belt rotary cutter is located on the plane where the symmetry lines of the two arc-shaped plates are located.

3. The online fully automatic unpacking system for sheet materials according to claim 1 or 2, characterized in that: The transverse belt pushing and cutting mechanism includes a transverse belt pushing and cutting mechanism mounting plate, a first transverse belt rotary cutter, and a transverse belt pushing and cutting push plate; The mounting plate of the transverse belt pushing and cutting mechanism is provided with a hole, and the rotating shaft of the first transverse belt rotary cutter is parallel to the first direction so that its blade can extend from the hole.

4. The online fully automatic unpacking system for sheet materials according to claim 3, characterized in that: The transverse belt pushing and cutting plate includes two thick sheet-like members, and the two thick sheet-like members have sheet-like arc surfaces, and the symmetry lines of the arc surfaces are parallel to the second direction and can extend out of the hole.

5. The online fully automatic unpacking system for sheet materials according to claim 4, characterized in that Also included is a second horizontal belt rotary cutter; The second transverse belt rotary cutter has the same shape and size as the first transverse belt rotary cutter, and the first transverse belt rotary cutter and the second transverse belt rotary cutter are symmetrically fixed on both sides of the transverse belt pushing plate.

6. The online fully automatic unpacking system for sheet materials according to claim 1, characterized in that Also includes a waist cutting mechanism; The waist strip cutting mechanism includes a cutting frame installed on the frame, a waist strip rotary cutter driver horizontally fixed on the top of the cutting frame, and a waist strip rotary cutter assembly horizontally fixed on the cutting frame and driven by the waist strip rotary cutter driver.

7. The online fully automatic unpacking system for sheet materials according to claim 1, characterized in that Also included is a waist strip removal mechanism; The waist strip removal mechanism includes a waist strip removal mounting plate horizontally arranged on the frame, a removal cylinder assembly vertically fixed below the waist strip removal mounting plate and capable of vertical reciprocating motion, and a hook assembly vertically fixed at the movable end of the removal cylinder assembly.

8. The online fully automatic unpacking system for sheet materials according to claim 1, characterized in that Also includes adjustable baffles; The adjustable baffle is fixed to a side surface of the feeding mechanism and extends along the first direction to adjust a horizontal installation position of the adjustable baffle in the second direction.

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