Automatic laminating and stacking equipment for bricks

Abstract

The invention relates to the field of visual stacking equipment, in particular to automatic film laminating and stacking equipment for bricks, which structurally comprises a stacking machine head at the front end of a placing plate, a visual camera is arranged on the stacking machine head, and a film laminating machine head is arranged at the side end of the placing plate and is used for conveying protective films for the bricks. The protective film is transversely laid among the stacked bricks and is continuously laid in the longitudinal direction of the bricks, the film stacking machine head comprises a first conveying roller and a second conveying roller, the second conveying roller is attached to the first conveying roller through a driving piece, and a cutter outlet and a cutter are arranged on the first conveying roller. The vertical frame is arranged to drive the film stacking mechanism to transversely lay the bricks between the stacked bricks and continuously lay the bricks in the longitudinal direction, so that the cutting procedure is reduced, the protective film is output and laid through cooperation of the two roller structures, the protective film is prevented from being pulled between the bricks, and the production efficiency is improved. The stress point of the protective film is changed to the two roller structures instead of the edge of each layer of bricks, unnecessary friction between the protective film and the bricks is also avoided, and the protective film is prevented from being damaged.

Description

Technical Field

[0001] The invention relates to the field of visual stacking equipment, in particular to an automatic film-coating stacking equipment for bricks. Background Art

[0002] The stacking equipment is mainly used to stack the bricks produced by the brick production line. The brick production line produces bricks according to different usage requirements, including bricks with surface layers. Bricks with surface layers refer to building bricks that are processed by special processes or materials to form a functional or decorative covering layer on the surface of the brick body. This type of brick combines the mechanical properties of the basic brick body and the decorative characteristics of the surface layer.

[0003] However, during palletizing, the friction between bricks can easily damage the surface layer and affect the use of the bricks. Therefore, in the existing palletizing operation, the palletizing equipment will lay a protective film between the bricks. However, the existing technology usually pulls a layer of protective film and lays it on the first layer of bricks, uses manual horizontal cutting or lifting blades to cut, and then places the second layer of bricks, and then pulls a layer of protective film, and so on. This laying method has many steps and is cumbersome, which is not conducive to multi-layer paving. In addition, during the cutting process, the protective film has no fixed force point, and the stretching and cutting of the protective film are not in place, which will lead to incomplete cutting or the film moving out of position, affecting the paving effect. Summary of the invention

[0004] In view of the above problems, the present invention provides an automatic film coating and stacking equipment for bricks, the structure of which includes a conveyor line arranged at the front end of a placement plate and a stacking machine head arranged on the conveyor line, the stacking machine head is provided with a visual camera and is used to stack the bricks on the conveyor line onto the placement plate, the side end of the placement plate is provided with a film coating head and a positioning mechanism through a frame, the film coating head is used to convey a protective film to the bricks driven by the frame, the protective film is laid horizontally between the stacked bricks and continuously laid longitudinally along the bricks; the film coating head includes a hanger for hanging a protective film coil and a first conveying roller and a second conveying roller installed below the hanger, the first conveying roller is an actively rotating roller The structure is that the second conveying roller is a movable roller structure, and a driving member is provided at the side end of the hanging bracket, and the second conveying roller is driven by the driving member to fit or unfold with the first conveying roller; the first conveying roller is provided with a knife outlet and a movable cutting component is provided inside, and the cutting component includes a cutting knife used to extend from the knife outlet and contact the protective film, and the second conveying roller is provided with a knife outlet, and the second conveying roller is provided with an axis encoder for positioning the angle of the knife outlet; the positioning mechanism includes a base and clamping arms swung and connected on both sides of the base, and the clamping arms are used to cooperate with the base to clamp the protective film, and the horizontal height of the top surface of the clamping arm is higher than the horizontal height of the top surface of the first layer of bricks on the placement plate.

[0005] Furthermore, a first rotating shaft is provided on both sides of the first conveying roller and is rotatably engaged with the hanging bracket, a horizontal sliding groove is provided on the hanging bracket and a slider is slidably engaged in the sliding groove, a second rotating shaft is provided on both sides of the second conveying roller and is rotatably engaged with the slider, the driving member is installed on the hanging bracket and is rotated by the second motor; a guide groove is provided on the driving member, the first rotating shaft and the second rotating shaft are engaged in the guide groove, the guide groove includes an annular first give way groove and a guide groove extending from the first give way groove to the edge of the driving member, the first rotating shaft is engaged in the first give way groove, the second rotating shaft is engaged in the guide groove and is driven by the rotation of the driving member to move toward the first give way groove; the radius of the center line of the first give way groove is equal to the distance between the axis of the first rotating shaft and the center axis of the driving member.

[0006] Furthermore, the cutting assembly is driven to work by a driving member, and the cutting assembly includes a knife seat movably installed in the first conveying roller, and the cutting knife is installed on the knife seat. The movable direction of the knife seat is pointing to the knife outlet and the cutting knife points to the knife outlet. A reset spring is provided between the knife seat and the first conveying roller, and the reset spring provides elastic force to drive the knife seat away from the knife outlet; the cutting assembly also includes a pull rod and a pull frame connected to the pull rod, and the pull rod extends to the outside through the first rotating shaft to contact the driving member, one side of the pull frame is against the inner wall of the first conveying roller and the other side is provided with a cross guide block, and a lower guide block is provided on the knife seat and is against the cross guide block through an inclined surface.

[0007] Furthermore, driving members are provided on both sides of the second conveying roller, and an outer ring frame is provided on the driving member on one side of the second conveying roller, a synchronous shaft sleeve is provided at the center of the outer ring frame, and the second motor is installed on the hanging bracket through a bracket and is provided with a motor shaft, and the synchronous shaft sleeve is nested and connected with the motor shaft; an axial linkage structure is provided on the driving member, and the axial linkage structure drives the driving member to move axially under the rotation of the second motor, and a pulling member is provided on the inner side of the outer ring frame on the pull rod, and the pull rod is driven to move axially by the axial movement of the driving member, and the axially moving lower guide block drives the cross guide block to move toward the direction of the knife edge.

[0008] Furthermore, the axial linkage structure includes an outer driven wheel installed on the outside of the outer ring frame and a limit seat installed on the bracket, the limit seat is arranged on the bracket along the outer contour of the outer ring frame, and a lifting seat is provided at the front end of the limit seat, and the lifting seat is inclined; the synchronous sleeve on the motor shaft limits the freedom of rotation around the axis and retains the freedom of axial movement, and the outer driven wheel on the rotating outer ring frame moves from the lifting seat to the limit seat, thereby driving the outer ring frame to move axially.

[0009] Furthermore, the guide groove of the driving member further includes a second clearance groove, and the second clearance groove is obtained by extending the first clearance groove along its own arc.

[0010] Furthermore, a blocking mechanism is provided in the first conveyor roller for blocking the knife outlet, and the blocking mechanism includes a blocking bar, and the two sides of the blocking bar are swingably installed in the first conveyor roller through side swing arms, and the swing axis is parallel to the axis of the first conveyor roller; a torsion spring is provided between the side swing arm and the first conveyor roller to drive the blocking bar to abut against the knife outlet, and a contact inclined surface is provided on the top of the blocking bar, and the cutting knife extending out of the knife outlet abuts against the contact inclined surface to drive the blocking bar to swing.

[0011] Furthermore, a yield slope is provided on one side of the blade edge for the swinging movement of the baffle bar, there is a distance between the swing connection point of the side swing arm and the baffle bar, the angle between the line connecting the swing connection point and the center position of the contact slope and the slope is greater than 90°, and the swing connection point is located on the side to which the contact slope points.

[0012] Furthermore, the first conveying roller is actively rotated by being driven by a first motor, and the first motor is a closed-loop motor or a semi-closed-loop motor; the first conveying roller and the second conveying roller rotate in the same direction as the positive direction of the angle and rotate in the opposite direction as the negative direction of the angle, and the driving member drives the second conveying roller to fit with the first conveying roller when the sum of the angles between the first conveying roller and the second conveying roller is -3° to 3°.

[0013] Furthermore, the base is provided with inclined side guides in the area covered by the clamping arms, the side guides are elastic and the inclined directions are directed to the two sides of the base.

[0014] Furthermore, the frame includes a vertical frame, a horizontal frame slidably mounted on the vertical frame, and a sliding seat slidably mounted on the horizontal frame. The vertical frame, the horizontal frame and the sliding seat are moved by a driving mechanism. The driving mechanism is a chain transmission mechanism and includes a chain, a sprocket and a chain transmission motor that drives the sprocket to rotate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention provides a positioning mechanism to clamp one end of the protective film, and provides a vertical frame to drive the film stacking mechanism to lay the film horizontally between the stacked bricks and continuously along the longitudinal direction of the bricks, thereby reducing the cutting process and making the laying more continuous. The protective film is output and laid by the cooperation of the first conveyor roller and the second conveyor roller, thereby avoiding the protective film from being laid between the bricks by pulling, and the force point of the protective film is changed to the two roller structures instead of the edge of each layer of bricks, thereby avoiding unnecessary friction between the protective film and the bricks, and preventing the protective film from being damaged.

[0017] Furthermore, the present invention arranges the cutting mechanism for cutting the protective film in the two roller structures, so that the protective film can be automatically cut at the end of the laying process, and avoids the situation in which a new cutting mechanism is added to affect the spatial layout under the premise of a layout based on the stacking space required by the stacking mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic diagram of the overall structure of an automatic film coating and stacking device for bricks.

[0019] Figure 2 It is a three-dimensional schematic diagram of the film stacking head of the present invention coating the bricks stacked by the stacking head.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the film stacking head and the positioning mechanism of the present invention.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the cooperation between the driving member and the first conveying roller and the second conveying roller of the present invention.

[0022] Figure 5 It is a schematic diagram of the state conversion of the cooperation between the driving member and the first conveying roller and the second conveying roller of the present invention.

[0023] Figure 6 It is a three-dimensional structural schematic diagram of an implementation manner of a driving member on one side of the second conveying roller of the present invention.

[0024] Figure 7 It is a three-dimensional schematic diagram of the partial structure of the cutting assembly in the first conveying roller of the present invention.

[0025] Figure 8 This is a schematic diagram of the state transition of the driving member driving the cutting assembly to work according to the present invention.

[0026] Fig. 9 It is a schematic diagram of the front section structure of the cutting assembly inside the first conveying roller of the present invention working in cooperation with the second conveying roller.

[0027] Fig.10 It is a schematic side sectional structure diagram of the cooperation between the cutting assembly and the stopper mechanism of the present invention.

[0028] In the figure: A, protective film; 1, palletizing head; 2, placement board; 3, conveyor line; 4, frame; 5, stacking head; 6, positioning mechanism;

[0029] 41. Vertical frame; 42. Horizontal frame; 43. Sliding seat; 51. Hanging frame; 52. First conveying roller; 53. Second conveying roller; 54. Synchronous gear; 55. First motor; 56. Driving member; 57. Second motor; 58. Shaft encoder; 59. Cutting assembly; 61. Base; 62. Clamping arm; 63. Moving actuator cylinder; 64. Side guide;

[0030] 511, bracket; 512, slider; 513, limit seat; 514, lifting seat; 52a, first rotating shaft; 52b, knife outlet; 52c, make way slope; 53a, second rotating shaft; 53b, knife outlet; 561, outer ring frame; 562, synchronous shaft sleeve; 563, outer driving wheel; 56a, guide groove; 56b, first make way groove; 56c, second make way groove; 571, motor shaft; 591, pull rod; 592, pull member; 593, pull frame; 594, knife seat; 595, cutter; 596, stop mechanism;

[0031] 5931, cross guide block; 5941, lower guide block; 5942, return spring; 5961, stop bar; 5962, side swing arm; 5963, torsion spring. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Examples, such as Figure 1-Figure 10 As shown: The present invention provides an automatic film coating and stacking equipment for bricks, with a placement plate 2 as the center, and the structure includes a conveyor line 3 arranged at the front end of the placement plate 2 and a stacking machine head 1 arranged on the conveyor line 3, the conveyor line 3 is used to convey bricks with surface quality requirements, and a layer of bricks has a plurality of bricks and are regularly arranged in a square array, the stacking machine head 1 is provided with a visual camera and is used to stack the bricks on the conveyor line 3 on the placement plate 2, and the stacking machine head 1 is provided with a clamping mechanism, which applies force to clamp the brick array in two or four directions, so as to clamp a whole layer of brick array and transport it to the placement plate 2, and because the stacking machine head 1 only has a back and forth circular movement in one direction in the horizontal direction, the visual camera is mainly used to determine whether the position deep into the placement plate 2 is accurate;

[0034] The side end of the placement plate 2 is provided with a laminating head 5 and a positioning mechanism 6 through a frame 4. The laminating head 5 is used to convey a protective film A to the bricks under the drive of the frame 4, and the protective film A is laid horizontally between the stacked bricks and continuously along the longitudinal direction of the bricks without interruption between each layer.

[0035] To this end, the frame 4 includes a vertical frame 41, a horizontal frame 42 slidably mounted on the vertical frame 41, and a sliding seat 43 slidably mounted on the horizontal frame 42. The vertical frame 41, the horizontal frame 42 and the sliding seat 43 are driven to move by a driving mechanism. The driving mechanism is a chain transmission mechanism and includes a chain, a sprocket and a chain transmission motor that drives the sprocket to rotate. The chain transmission is driven by the chain transmission motor, so that the horizontal frame 42 slides vertically on the vertical frame 41 and the sliding seat 43 moves horizontally on the horizontal frame 42, so that the film stacking head 5 on the sliding seat 43 can lay the protective film A on the bricks horizontally and move vertically so that the protective film A can continuously cover the upper layer. Therefore, the steps of cutting the protective film A at each layer and repositioning and re-laying are saved.

[0036] As for the film stacking head 5, the film stacking head 5 includes a hanger 51 for hanging the protective film A coil and a first conveying roller 52 and a second conveying roller 53 installed under the hanger 51. The hanger 51 has a horizontal axis in the middle for hanging the protective film A coil separately, so that the installation of the protective film A coil can be more convenient. The first conveying roller 52 is an actively rotating roller structure and the second conveying roller 53 is a moving roller structure. A driving member 56 is provided at the side end of the hanger 51. The second conveying roller 53 is driven by the driving member 56 to fit or unfold with the first conveying roller 52. When installing the protective film A roll and just laying the first layer, the two roller structures need to be unfolded to make the protective film A move more conveniently. When laying other layers and moving back and forth between layers, the two roller structures need to fit and drive the protective film A to move to avoid pulling between the bricks.

[0037] The positioning mechanism 6 cooperates with the laminating head 5 and is installed near the placing plate 2 and below the laminating head 5. The structure includes a base 61 and clamping arms 62 swivelingly connected on both sides of the base 61. The clamping arms 62 are used to clamp the protective film A in cooperation with the base 61. The clamping arms 62 are driven to open and close by the cylinder-type moving actuator 63. Side guides 64 are provided in the area of ​​the base 61 covered by the clamping arms 62. The side guides 64 are elastic, and the tilting direction of the side guides 64 points to both sides of the base 61. Therefore, after the clamping arms 62 drive the protective film A to be clamped on the base 61, the side guides 64 are clamped at the same time and the tilted side guides 64 are driven to further tilt until they are attached to the base 61. In the process of tilting, the side guides 64 drive the protective film A to unfold to both sides, thereby ensuring that the protective film A is stretched relatively flat, so that it will not produce many wrinkles when laying the first layer.

[0038] It should be noted that the horizontal height of the top surface of the clamping arm 62 is higher than the horizontal height of the top surface of the first layer of bricks on the placement plate 2, so that when the laminating machine head 5 drives the protective film A clamped by the clamping arm 62 to be pulled out and laid on the first layer of bricks, the protective film A will not be scratched against the corners of the bricks close to the clamping arm 62.

[0039] For the laminating machine head 5, a knife outlet 52b is provided on the first conveying roller 52 and a movable cutting assembly 59 is provided inside. The cutting assembly 59 includes a cutting knife 595 for extending from the knife outlet 52b to contact the protective film A. The second conveying roller 53 is provided with a knife outlet 53b. The second conveying roller 53 is provided with an axis encoder 58 for locating the angle of the knife outlet 53b. Specifically, the first conveying roller 52 is actively rotated by the first motor 55. The first motor 55 is a closed-loop motor or a semi-closed-loop motor. The position angle of the first conveying roller 52 can be obtained, thereby obtaining The position of the knife exit 52b is defined as the angle line formed by the center position of the knife exit 52b and the knife edge 53b and the axis, and the angle between the angle line and the normal line passing through the axis is the angle. The first conveying roller 52 and the second conveying roller 53 rotate in the same direction as the positive direction of the angle and rotate in the opposite direction as the reverse direction of the angle. The driving member 56 is arranged to drive the second conveying roller 53 to fit with the first conveying roller 52 when the angle sum between the first conveying roller 52 and the second conveying roller 53 is -3° to 3°, so that the knife exit 52b and the knife edge 53b can fit correspondingly after rotation.

[0040] In this embodiment, a roller mechanism with a radius of 4 cm is used, and the opening width of the exit edge 52b and the allowance edge 53b is 0.5 cm. According to the sine formula, it can be known that the central angles corresponding to the exit edge 52b and the allowance edge 53b are about 8°, and the cutter 595 is located in the center and divides the exit edge 52b. The left and right sides of the cutter 595 each occupy 4°. Therefore, setting the range of -3° to 3° can make the cutter 595 be in the allowance edge 53b when working.

[0041] As for the film stacking machine head 5, specifically, first rotating shafts 52a are provided on both sides of the first conveying roller 52 and are rotatably engaged on the hanging bracket 51. The hanging bracket 51 is provided with a horizontal sliding groove and a slider 512 is slidably engaged in the sliding groove. Second rotating shafts 53a are provided on both sides of the second conveying roller 53 and are rotatably engaged on the slider 512, so that the second conveying roller 53 has the freedom to approach and move away from the first conveying roller 52. The driving member 56 is installed on the hanging bracket 51 and is driven to rotate by the second motor 57. The driving member 56 is provided with a guide groove, and the first rotating shaft 52a and the second rotating shaft 53a are engaged in the guide groove. The guide groove includes It includes a first annular give way groove 56b and a guide groove 56a extending from the first give way groove 56b to the edge of the driving member 56, the distance from the starting end of the guide groove 56a to the center of the positioning member is greater than the distance from the starting end of the first give way groove 56b to the center of the positioning member, and the radius of the center line of the first give way groove 56b is equal to the distance between the axis of the first rotating shaft 52a and the center axis of the driving member 56, thereby, the first rotating shaft 52a is engaged in the first give way groove 56b, the second rotating shaft 53a is engaged in the guide groove 56a, and the second rotating shaft 53a in the guide groove 56a moves toward the first give way groove 56b under the rotation of the driving member 56.

[0042] It should be noted that the second rotating shaft 53a and the bracket 51 can be arranged through damping nesting, so that the second conveying roller 53 has a certain viscosity when it does not need to rotate, but does not affect the subsequent rotation, and then the second rotating shaft 53a and the guide groove of the driving member 56 are matched through ordinary bearings to ensure the smoothness between the driving member 56 and the second rotating shaft 53a, thereby preventing the angle of the second rotating shaft 53a from changing when the driving member 56 drives the second rotating shaft 53a to move.

[0043] As for the cutting assembly 59, the cutting assembly 59 includes a knife seat 594 movably mounted in the first conveying roller 52, and a cutting knife 595 is mounted on the knife seat 594. The knife seat 594 and the cutting knife 595 are both arranged in a long strip shape along the length direction of the roller structure. The movable direction of the knife seat 594 is directed to the knife outlet 52b and the cutting knife 595 is directed to the knife outlet 52b. A return spring 5942 is arranged between the knife seat 594 and the first conveying roller 52. The return spring 5942 provides elastic force to drive the knife seat 594 away from the knife outlet 52b, so that the cutting knife 595 can be retracted back into the roller structure.

[0044] The cutting assembly 59 is driven by a driving member 56 to work. To this end, the cutting assembly 59 also includes a pull rod 591 and a pull frame 593 connected to the pull rod 591. The pull rod 591 extends through the first rotating shaft 52a to the outside and contacts the driving member 56. Driving members 56 are provided on both sides of the second conveying roller 53. The driving member 56 on one side of the second conveying roller 53 is provided with an outer ring frame 561. The center of the outer ring frame 561 is provided with a synchronous shaft sleeve 562. The second motor 57 is installed on the hanger 51 through a bracket 511 and is provided with a motor shaft 571. The synchronous shaft sleeve 562 is nested and connected with the motor shaft 571, and the synchronous shaft sleeve 562 on the motor shaft 571 limits the freedom of rotation around the axis and retains the freedom of axial movement. An axial linkage structure is provided on the driving member 56, and the axial linkage structure drives the driving member 56 to move axially under the rotation of the second motor 57. A pull member 592 is provided on the inner side of the outer ring frame 561 on the pull rod 591, and the pull rod 591 is driven to move axially by the axial movement of the driving member 56. One side of the pull frame 593 abuts against the inner wall of the first conveying roller 52 and the other side is provided with a cross guide block 5931. A lower guide block 5941 is provided on the knife seat 594 and abuts against the cross guide block 5931 through an inclined surface, so that the axial movement of the cross guide block 5931 is converted into a movement perpendicular to the axial direction, so that the axially moving lower guide block 5941 drives the cross guide block 5931 to move in the direction of the knife outlet 52b, so that the cutting knife 595 extends out from the knife outlet 52b.

[0045] In this embodiment, the pulling member 592 mainly plays a limiting role, so that when the driving member 56 moves axially, it can drive the pulling member 592 to move together. The pulling member 592 adopts a bearing and is connected to the pull rod 591 at an angle, so as to facilitate the rolling of the pulling member 592 on the driving member 56.

[0046] For the axial linkage structure, the axial linkage structure includes an outer driving wheel 563 installed on the outer side of the outer ring frame 561 and a limit seat 513 installed on the bracket 51. The limit seat 513 is arranged on the bracket 51 along the outer contour of the outer ring frame 561. The limit seat 513 plays a limiting role on the driving member 56, allowing the driving member 56 to rotate surrounded by the limit seat 513. A lifting seat 514 is provided at the front end of the limit seat 513. The lifting seat 514 is inclined. The outer driven wheel 563 moves from the lifting seat 514 to the limiting seat 513, thereby driving the outer ring frame 561 to move axially. In coordination with this, the guide groove of the driving member 56 also includes a second giveway groove 56c, and the second giveway groove 56c is obtained by extending the first giveway groove 56b along its own arc. Therefore, when the driving member 56 rotates for axial movement, the first rotating shaft 52a enters the second giveway groove 56c, and the second rotating shaft 53a enters the first giveway groove 56b.

[0047] In summary, in the specific implementation of this embodiment, the protective film A coil is installed on the hanger 51, and then the protective film A on the coil is allowed to hang down, pass between the first conveyor roller 52 and the second conveyor roller 53 and continue to hang down, the vertical frame 41 drives the horizontal frame 42 to descend, and the sliding seat 43 moves on the horizontal frame 42 to the top of the positioning mechanism 6 on the left side of the placement plate 2, and the hanging protective film A enters between the clamping arm 62 and the base 61, and the mobile actuator 63 drives the clamping arm 62 to swing to clamp the protective film A to the side guide 64 of the base 61 and further press the side guide 64, the side guide 64 drives the protective film A to unfold to both sides during the tilting process, so as to ensure that the protective film A is stretched relatively flat, and then the stacking head 1 drives the brick array on the conveyor line 3 to clamp and transport it to the placement plate 2, and the sliding seat 43 moves to the right side of the placement plate 2 on the horizontal frame 42, so that the positioning mechanism 6 pulls one end of the protective film A, and the stacking head 5 pulls the protective film A coil and lays it on the first layer of bricks, and further moves to the right side, leaving enough space on the bricks for the stacking head 1 to place the bricks;

[0048] Then the second motor 57 drives the driving member 56 to rotate, so that the second conveying roller 53 moves and fits onto the first conveying roller 52. It is known to those skilled in the art that a synchronous gear 54 can be provided between the first conveying roller 52 and the second conveying roller 53 so that they can rotate synchronously after fitting. After the palletizing machine head 1 lays the second layer of bricks on the first layer of protective film A, the vertical frame 41 drives the horizontal frame 42 to rise a part, and then the sliding seat 43 moves to the left. In order to avoid the palletizing machine head 1, there will be a vacant part of the protective film A hanging between the bricks and the protective film A roll. At this time, the first conveying roller 52 and the second conveying roller 53 drive the protective film A to be retracted to the rear of the moving direction, so that the length of the protective film A in the front of the moving direction becomes shorter, so as to avoid the protective film A from scratching the bricks. Then, during the laying process, the retracted part is laid down, and some more is drawn from the roll material to be laid, so as to avoid the protective film A from being laid between the bricks by pulling, and also avoid unnecessary friction between the protective film A and the bricks. Thus, the protective film A is laid between the brick layers in an uninterrupted "S" shape.

[0049] Finally, during cutting, the shaft encoder 58 and the first motor 55 first determine the angle between the first conveyor roller 52 and the second conveyor roller 53. If the angle does not meet the requirements, the two roller structures are unfolded, and the first motor 55 drives the first conveyor roller 52 to rotate to a position corresponding to the angle of the second conveyor roller 53. After the angle meets the requirements, the two roller structures are fitted together, and the first motor 55 drives the knife edge 52b and the knife edge 53b to move downward, and then the first conveyor roller 52 and the second conveyor roller 53 rotate upward with the protective film clamped. At the same time, the second motor 57 further rotates to make the driving member 56 move axially and drive the pulling member 592 together The lower guide block 5941 moves so that the lower guide block 5941 and the transverse guide block 5931 are against each other through the inclined surface, and the axial movement of the transverse guide block 5931 is converted into a movement perpendicular to the axial direction, so that the axially moving lower guide block 5941 drives the transverse guide block 5931 to move toward the knife exit 52b, so that the cutter 595 extends from the knife exit 52b, and cuts the protective film below the contact line between the first conveyor roller 52 and the second conveyor roller 53. At this time, one end of the protective film is still clamped between the first conveyor roller 52 and the second conveyor roller 5, and then the first conveyor roller 52 and the second conveyor roller 5 drive the protective film to move downward, and the protective film is pulled out from the protective film coil;

[0050] At the same time, compared with the method of allowing the coil to drive the protective film A to move to a high place for horizontal laying and then descending to allow the protective film A to cover the bricks, this embodiment avoids laying the protective film A by pulling between the bricks. The laying force points are located on the first conveying roller 52 and the second conveying roller 53 instead of the edge of each layer of bricks, thereby avoiding damage to the protective film A.

[0051] In this embodiment, in addition, a stopper mechanism 596 is provided in the first conveying roller 52 for blocking the knife outlet 52b to prevent the vibration during the rotation process from causing the cutter 595 to vibrate outside the knife outlet 52b. The stopper mechanism 596 includes a stopper bar 5961. Both sides of the stopper bar 5961 are swingably installed in the first conveying roller 52 through side swing arms 5962, and the swing axis is parallel to the axis of the first conveying roller 52. A torsion spring 5963 is provided between the side swing arms 5962 and the first conveying roller 52 for driving the stopper bar 5961 to abut against the knife outlet 52b. A contact inclined surface is provided at the top of the stopper bar 5961. The cutter 595 extending out of the knife outlet 52b abuts against the contact inclined surface to drive the stopper bar 5961 to swing.

[0052] Specifically, a clearance slope 52c is provided on one side of the knife outlet 52b for the swinging movement of the baffle bar 5961. It should be noted that there is a distance between the swing connection point of the side swing arm 5962 and the baffle bar 5961, and the angle between the line connecting the swing connection point and the center position of the contact slope and the slope is greater than 90°, and the swing connection point is located on the side pointed by the contact slope, thereby ensuring that the cutter 595 can push the baffle bar 5961 after being driven. As is known to those skilled in the art, a separate contact structure such as a plate may be provided on the side of the cutter 595 close to the contact slope of the baffle bar 5961 for contacting the contact slope, or a coating for facilitating contact and sliding may be provided, which will not be elaborated here.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. An automatic film coating and stacking equipment for bricks, comprising a conveyor line arranged at the front end of a placement plate and a stacking machine head arranged on the conveyor line, wherein the stacking machine head is provided with a visual camera and is used to stack bricks on the conveyor line onto the placement plate, characterized in that: The side end of the placing plate is provided with a film stacking head and a positioning mechanism through a frame, and the film stacking head is used to convey a protective film to the bricks under the drive of the frame, and the protective film is laid horizontally between the stacked bricks and continuously laid along the longitudinal direction of the bricks; The film stacking head comprises a hanger for hanging the protective film coil and a first conveying roller and a second conveying roller installed below the hanger, wherein the first conveying roller is an actively rotating roller structure and the second conveying roller is a moving roller structure, and a driving member is provided at the side end of the hanger, and the second conveying roller is driven by the driving member to fit or unfold with the first conveying roller; The first conveying roller is provided with a knife outlet and a movable cutting assembly inside, wherein the cutting assembly includes a cutting knife extending from the knife outlet to contact the protective film, the second conveying roller is provided with a knife yielding edge, and the second conveying roller is provided with an axis encoder for locating the angle of the knife yielding edge; The positioning mechanism includes a base and clamping arms swingably connected on both sides of the base, the clamping arms are used to cooperate with the base to clamp the protective film, and the horizontal height of the top surface of the clamping arms is higher than the horizontal height of the top surface of the first layer of bricks on the placement plate.

2. The automatic film coating and stacking equipment for bricks according to claim 1 is characterized in that: The first conveying roller is provided with a first rotating shaft on both sides and is rotatably engaged with the hanging bracket, the hanging bracket is provided with a horizontal sliding groove and a slider is slidably engaged in the sliding groove, the second conveying roller is provided with a second rotating shaft on both sides and is rotatably engaged with the slider, the driving member is installed on the hanging bracket and is driven to rotate by the second motor; The driving member is provided with a guide groove, the first rotating shaft and the second rotating shaft are engaged in the guide groove, the guide groove comprises an annular first giving way groove and a guide groove extending from the first giving way groove to the edge of the driving member, the first rotating shaft is engaged in the first giving way groove, the second rotating shaft is engaged in the guide groove and is driven by the rotation of the driving member to move toward the first giving way groove; The radius of the center line of the first clearance groove is equal to the distance between the axis of the first rotating shaft and the center axis of the driving member.

3. The automatic film coating and stacking equipment for bricks according to claim 2 is characterized in that: The cutting assembly is driven by a driving member to work, and the cutting assembly includes a knife seat movably mounted in the first conveying roller, the cutting knife is mounted on the knife seat, the movable direction of the knife seat is pointing to the knife outlet and the cutting knife points to the knife outlet, a return spring is arranged between the knife seat and the first conveying roller, and the return spring provides elastic force to drive the knife seat away from the knife outlet; The cutting assembly also includes a pull rod and a pull frame connected to the pull rod, the pull rod passes through the first rotating shaft and extends to the outside to contact the driving member, one side of the pull frame abuts against the inner wall of the first conveying roller and the other side is provided with a cross guide block, and the knife seat is provided with a lower guide block that abuts against the cross guide block through an inclined surface.

4. The automatic film coating and stacking equipment for bricks according to claim 3 is characterized in that: A driving member is provided on both sides of the second conveying roller, an outer ring frame is provided on the driving member on one side of the second conveying roller, a synchronous shaft sleeve is provided at the center of the outer ring frame, the second motor is installed on the hanging bracket through a bracket and is provided with a motor shaft, and the synchronous shaft sleeve is nested and connected with the motor shaft; The driving member is provided with an axial linkage structure, and the axial linkage structure drives the driving member to move axially under the rotation of the second motor. The pull rod is provided with a pulling member on the inner side of the outer ring frame, and the pull rod is driven to move axially by the axial movement of the driving member. The axially moving lower guide block drives the cross guide block to move toward the direction of the knife edge.

5. The automatic film coating and stacking equipment for bricks according to claim 4 is characterized in that: The axial linkage structure includes an outer driving wheel mounted on the outer side of the outer ring frame and a limit seat mounted on the pylon, wherein the limit seat is arranged on the pylon along the outer contour of the outer ring frame, and a lifting seat is arranged at the front end of the limit seat, and the lifting seat is inclined; The synchronous sleeve on the motor shaft limits the freedom of rotation around the axis and retains the freedom of axial movement. The outer driven wheel on the rotating outer ring frame moves from the lifting seat to the limiting seat, thereby driving the outer ring frame to move axially.

6. The automatic film coating and stacking equipment for bricks according to claim 5 is characterized in that: The guide groove of the driving member further comprises a second clearance groove, and the second clearance groove is obtained by extending the first clearance groove along its own arc.

7. The automatic film coating and stacking equipment for bricks according to claim 1 is characterized by: The first conveying roller is also provided with a blocking mechanism for blocking the knife outlet, and the blocking mechanism includes a blocking bar, and the two sides of the blocking bar are swingably installed in the first conveying roller through side swing arms, and the swing axis is parallel to the axis of the first conveying roller; A torsion spring is provided between the side swing arm and the first conveying roller to drive the baffle bar to abut against the knife outlet. A contact slope is provided on the top of the baffle bar. The cutting knife extending out of the knife outlet abuts against the contact slope to drive the baffle bar to swing.

8. The automatic film coating and stacking equipment for bricks according to claim 7 is characterized by: A yield slope is provided on one side of the blade edge for the swinging movement of the baffle bar. There is a distance between the swing connection point of the side swing arm and the baffle bar. The angle between the line connecting the swing connection point and the center position of the contact slope and the slope is greater than 90°, and the swing connection point is located on the side pointed by the contact slope.

9. The automatic film coating and stacking equipment for bricks according to claim 1, characterized in that: The first conveying roller is driven by a first motor to actively rotate, and the first motor is a closed-loop motor or a semi-closed-loop motor; The first conveying roller and the second conveying roller rotate in the same direction as the positive direction of the angle and rotate in the opposite direction as the negative direction of the angle. When the sum of the angles between the first conveying roller and the second conveying roller is -3° to 3°, the driving member drives the second conveying roller to fit with the first conveying roller.

10. The automatic film coating and stacking equipment for bricks according to claim 1, characterized in that: The base is provided with inclined side guides in the area covered by the clamping arms. The side guides are elastic and the inclined directions are directed to the two sides of the base.

Images