Valve box packaging line

Abstract

The present invention relates to a valve box packaging production line, which comprises: a bagging machine, a horizontal winding machine, a transfer conveyor line and an induction and control system; a film-releasing mechanism rotates counterclockwise when the valve box pushes the film to move, and a locking assembly is arranged on the film-releasing mechanism, and the locking assembly comprises a gear fixed on the mounting shaft of the film-releasing mechanism, a rack meshing with or separated from the gear, and a cylinder group for controlling the movement of the rack; a control device calculates the time for the valve box to reach the sealing and cutting position according to the position of the induction device, the size of the valve box and the moving speed of the valve box, and then controls the cylinder group to drive the rack to mesh with the gear in combination with a preset release time to lock the film-releasing mechanism; the control device controls the cylinder group to drive the rack to move according to the preset release time to drive the film-releasing mechanism to rotate clockwise.

Description

Technical Field

[0001] The invention relates to the field of packaging, in particular to a valve box packaging production line. Background Art

[0002] The valve box can be packaged by using a horizontal wrapping machine and a bagging machine. Specifically, during the bagging process, the film coil is fixed on the upper and lower film placing mechanisms, and the upper and lower film placing mechanisms are rotated by the film on the upper and lower film placing mechanisms pushed by the valve box. When the film completely covers the valve box, the rear side of the valve box moves to the rear side of the sealing and cutting mechanism, that is, the valve box reaches the sealing and cutting position, the valve box stops moving, and the sealing and cutting mechanism starts to seal and cut the film.

[0003] However, in the actual application of the above process, after the valve box stops moving, the film releasing mechanism will rotate due to the effect of inertia. Therefore, in actual operation, when the sealing and cutting mechanism is cutting, the film on the film releasing mechanism is still releasing. In this way, the length of the film actually released will be much longer than the bagging length required by the valve box, so that when sealing and cutting, the bagging will be loosely wrapped on the valve box, that is, the actual size of the bagging will be much larger than the size required for the bagging of the valve box. If the bagging wraps the valve box too loosely, the valve box will bulge when the subsequent wrapping tape wraps the valve box, affecting the subsequent packing; even worse, after the film releasing mechanism continues to release due to inertia, the excess film may accumulate under the sealing and cutting mechanism. After sealing and cutting, there will be too much film accumulated at the film sealing and cutting place, resulting in uneven lumps after melting, or the sealing and cutting will be skewed, which is not conducive to subsequent bagging. Summary of the invention

[0004] In order to solve the above problems, the valve box packaging production line provided by the present invention adopts a locking assembly that is provided on the film release mechanism and that is locked by a gear and a rack to prevent the film release mechanism from continuously rotating due to inertia. In this solution, when the valve box stops moving, the gear and rack are meshed in time to lock the film release mechanism. However, due to the inertia of the film release mechanism, when the gear and rack are converted from a separated state to a meshed state, the gear and rack will collide and cause a problem of tooth knocking.

[0005] To this end, the object of the present invention is to provide a valve box packaging line that can reduce the collision between the gear and the rack while avoiding the loosening of the bag.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solution: a valve box packaging production line, comprising:

[0007] The bagging machine comprises two film placing mechanisms arranged opposite to each other in an upper and lower direction and a sealing and cutting mechanism located behind the film placing mechanisms; the film placing mechanism comprises a mounting shaft for mounting a film coil and two shaft brackets for supporting two ends of the mounting shaft;

[0008] A horizontal wrapping machine, comprising a first horizontal wrapping machine and a second horizontal wrapping machine, wherein the first horizontal wrapping machine is arranged behind the sealing and cutting mechanism;

[0009] A transfer conveyor line, disposed between the first horizontal wrapping machine and the second horizontal wrapping machine to turn the valve box; and

[0010] A sensing and control system, comprising a plurality of sensing devices arranged on the bagging machine, the horizontal wrapping machine and the transfer conveyor line and a control device for controlling the operation of the bagging machine, the horizontal wrapping machine and the transfer conveyor line;

[0011] Wherein, the film releasing mechanism rotates counterclockwise as the valve box pushes the film to move, and a locking assembly is arranged on the film releasing mechanism, and the locking assembly comprises a gear fixed on the mounting shaft, a rack meshing with or disengaging from the gear, and a cylinder group driving the rack to move; the control device calculates the time for the valve box to reach the sealing and cutting position according to the position of the sensing device, the size of the valve box and the moving speed of the valve box, and then controls the cylinder group to drive the rack to mesh with the gear in combination with the preset release time to lock the film releasing mechanism; the control device controls the cylinder group to drive the rack to move according to the preset release time to drive the film releasing mechanism to rotate clockwise.

[0012] Furthermore, the time it takes for the valve box to reach the sealing position include:

[0013]

[0014] in, is the calibration coefficient used to correct the error in position detection, is the position of the valve box at time t, is the movement speed of the valve box; is the length of the valve box; is the width of the valve box; is the height of the valve box; It is the film reserve amount.

[0015] Furthermore, the sealing and cutting mechanism is provided with a roller mounting plate, a pressing roller mounted on the roller mounting plate, and a driving cylinder for driving the roller mounting plate to move in a height direction.

[0016] Furthermore, a bearing is installed on at least one end of the installation shaft, and the shaft bracket includes a first support plate, and a semicircular groove is formed inwardly on the first support plate to accommodate the bearing.

[0017] Furthermore, the mounting shaft is also provided with a stopper, a limiting groove is formed between the stopper and the bearing, and a first U-shaped frame is provided on the shaft bracket, and the first U-shaped frame is inserted into the limiting groove to achieve axial limitation.

[0018] Furthermore, the shaft bracket includes a second support plate, on which a second U-shaped frame and two roller groups arranged on one side of the second U-shaped frame are installed, the two roller groups are arranged horizontally front and back, the axis of the roller group is parallel to the axis of the installation shaft, and after the installation shaft is inserted into the U-shaped frame, it is tangent to the two roller groups.

[0019] Furthermore, the horizontal wrapping machine includes a wrapping machine body and a first conveying mechanism at least partially located in a wrapping chamber of the wrapping machine body, wherein the first conveying mechanism includes two sets of conveying components that are relatively arranged and located in the wrapping chamber and a power source for driving the conveying components to operate.

[0020] Furthermore, the horizontal winding machine also includes a cutting assembly, and an installation space for installing the cutting assembly is formed between the two groups of conveying assemblies.

[0021] Furthermore, the transfer conveyor line includes a turning conveyor line, which includes a plurality of first rollers, a turning platform, a lifting mechanism and a rotating mechanism arranged in parallel, a mounting portion for mounting the turning platform is formed between the plurality of first rollers, the turning platform is arranged on the rotating mechanism, and the rotating mechanism is mounted on the lifting mechanism.

[0022] Furthermore, the transfer conveyor line also includes a reversing conveyor line, which includes a second conveying mechanism and a third conveying mechanism. The conveying direction of the second conveying mechanism is perpendicular to the conveying direction of the third conveying mechanism. The second conveying mechanism includes a plurality of second rollers arranged in parallel, and a lifting gap is formed between some of the second rollers. The third conveying mechanism includes a plurality of conveying components and a lifting component that drives the conveying components to move in a height direction. Several of the conveying components are arranged within the lifting gap. The lifting component includes a rotating member and a power source. The power source drives the rotating member to rotate to push the conveying component to move in a height direction relative to the second roller.

[0023] The beneficial effects of the present invention are as follows: the valve box packaging line of the present application enables the valve box to be automatically packaged by setting a bagging machine, two horizontal winding machines and a transfer conveyor line, and in the packaging process, a locking component is set on the bagging mechanism, and the locking component is controlled to lock the film release mechanism according to the position of the sensing device, the size of the valve box, the moving speed of the valve box and the preset release time, so as to avoid the locking component from reducing its service life due to the collision between the gear and the rack when locking the film release mechanism, and the rack is controlled to move according to the release time to drive the film release mechanism to rotate clockwise, thereby tightening the bag on the valve box to avoid the bag from being loose and affecting the packaging effect. Therefore, the valve box packaging line can reduce the collision between the gear and the rack while avoiding the bag from being loose.

[0024] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of a valve box packaging line shown in one embodiment of the present application;

[0026] Figure 2 for Figure 1 The structural diagram of the bagging machine in FIG.

[0027] Figure 3 for Figure 2 A partial assembly structure diagram of one end of the central mounting shaft;

[0028] Figure 4 for Figure 3 Partial assembly structure diagram of the other end of the middle mounting shaft;

[0029] Figure 5 for Figure 1 The structural schematic diagram of the horizontal winding machine in FIG.

[0030] Figure 6 for Figure 1 The structural diagram of the transfer conveyor line in FIG.

[0031] Figure 7 for Figure 6 The structural diagram of the steering conveyor line in FIG.

[0032] Figure 8 for Figure 7 Schematic diagram of some structures in ;

[0033] Fig. 9 for Figure 6 Schematic diagram of the partial structure of the reversing conveyor line. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood in specific situations. In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] See also Figure 1 The valve box packaging line shown in a preferred embodiment of the present invention includes a bagging machine 10, a horizontal wrapping machine, a transfer conveyor line 30 and a sensing and control system. The bagging machine 10 includes a roller conveyor line 14, two film-releasing mechanisms 11 arranged on both sides of the roller conveyor line 14 in an upper and lower direction, and a sealing and cutting mechanism 12 located behind the film-releasing mechanism 11. The horizontal wrapping machine includes a first horizontal wrapping machine 21 and a second horizontal wrapping machine 22 arranged in sequence along the conveying direction of the valve box, and the first horizontal wrapping machine 21 is arranged behind the sealing and cutting mechanism 12. The transfer conveyor line 30 is arranged between the first horizontal wrapping machine 21 and the second horizontal wrapping machine 22 to turn the valve box. The sensing and control system includes a plurality of sensing devices (not numbered) arranged on the bagging machine 10, the horizontal wrapping machine and the transfer conveyor line 30 and a control device (not numbered) for controlling the operation of the bagging machine 10, the horizontal wrapping machine and the transfer conveyor line 30. In this embodiment, the valve box packaging line is an overall U-shaped structure to facilitate loading and unloading and save layout space. The valve box packaging line also includes a loading machine 41 and a unloading machine 42 arranged at the head end and the tail end.

[0036] See also Figures 2 to 4The film placing mechanism 11 includes a mounting shaft 111 for mounting the film coil 200 and two shaft brackets 112 for supporting the mounting shaft 111 at both ends. The mounting shaft 111 of the film placing mechanism 11 rotates counterclockwise when the film is pushed by the valve box (not shown). Specifically, Figure 2 The middle arrow a indicates the moving direction of the valve box. The free ends of the films on the upper and lower film-releasing mechanisms 11 are fused together by the sealing and cutting mechanism 12. The valve box is placed on the roller conveyor line 14 and driven by the roller conveyor line 14 to move at a uniform speed in the direction of arrow a. The valve box contacts the film and pushes the film to move. When the rear end of the valve box moves to the sealing and cutting position, the sealing and cutting mechanism 12 runs, and the hot melt pressing piece (not shown) of the sealing and cutting mechanism 12 is pushed downward by the cylinder 121 of the sealing and cutting mechanism 12 to work together with the sealing and cutting plate (not shown) below the sealing and cutting mechanism 12 to melt the film, thereby forming a bag on the valve box, and the films on the upper and lower film-releasing mechanisms 11 are fused together again to facilitate the next bagging.

[0037] In order to solve the problem that the film coil continues to release due to inertia, a locking assembly 13 is provided on the film release mechanism 11 in this embodiment. Specifically, the locking assembly 13 includes a gear 131 fixed on the mounting shaft 111, a rack 132 meshing with or disengaging from the gear 131, and a first cylinder 133 driving the rack 132 to move in the direction of the gear 131 or away from the gear 131. When the sealing and cutting position is reached, the rack 132 is driven by the first cylinder 133 to move in the direction of the gear 131 until the rack 132 meshes with the gear 131, thereby locking the film release mechanism 11 through the meshing of the gear 131 and the rack 132; when the bagging of the previous valve box is completed, the first cylinder 133 drives the rack 132 to move in the direction away from the gear 131, so that the gear 131 and the rack 132 are separated, and at this time, the film release mechanism 11 is unlocked.

[0038] As described above, when the gear 131 and the rack 132 are meshed, due to inertia, when the mounting shaft 111 stops moving in the valve box, the mounting shaft 111 will still rotate (counterclockwise), and since the gear 131 is installed on the mounting shaft 111, the gear 131 will rotate counterclockwise accordingly, and the moving direction of the rack 132 toward the gear 131 is radial, which is roughly perpendicular to the rotation direction of the gear 131. Therefore, when the rack 132 is meshed with the gear 131, the gear 131 will generate a rotational impact force on the rack 132, that is, there will be a collision between the gear 131 and the rack 132, and the tooth knocking phenomenon will occur. The impact force of the gear 131 on the rack 132 gradually decreases as the inertia decreases. Therefore, in order to reduce the impact force, it is necessary to ensure that the gear 131 and the rack 132 are meshed in a low inertia state as much as possible.

[0039] As known to those skilled in the art, inertia gradually decreases with the growth of time. However, in the process of the inertia gradually decreasing and the rotation of the gear 131 gradually slowing down, the film coil continues to increase in volume, so in this process, the problem of excessive film increase will occur. Therefore, in the solution for locking the gear 131 and the rack 132, reducing the collision between the gear 131 and the rack 132 and avoiding the bag from being loose are contradictory, which is a technical problem that has not been solved in the field for a long time.

[0040] In order to overcome this technical difficulty, the following solution is adopted in this embodiment: the control device calculates the time it takes for the valve box to reach the sealing position according to the position of the sensing device, the size of the valve box and the moving speed of the valve box. , combined with the preset release time The control cylinder group drives the rack 132 to mesh with the gear 131 to lock the film release mechanism 11; the control device adjusts the film release time according to the preset time. The cylinder group is controlled to drive the rack 132 to move, so as to drive the film placing mechanism 11 to rotate clockwise.

[0041] In this solution, the valve box is adjusted according to the time it takes for the valve box to reach the sealing position. After moving, the valve box reaches the sealing position. However, at this time, the inertia of the gear is the largest. Therefore, in this embodiment, it is allowed to continue to rotate. When its rotation time reaches the preset release time, After that, the inertia is roughly close to 0, so when the rack 132 is meshed with the gear 131, the impact between the gear 131 and the rack 132 is minimal, thus reducing the impact between the gear 131 and the rack 132. Of course, in actual work, it is not necessary to make the inertia reach 0, as long as the impact between the gear 131 and the rack 132 can be reduced as much as possible to ensure that the service life of the gear 131 and the rack 132 reaches the required range. Preset release time It can be set according to actual needs.

[0042] When the rack 132 is meshed with the gear 131, there is excess film expansion, and this excess expansion needs to be eliminated. Therefore, in this example, before sealing and cutting, the cylinder group drives the rack 132 according to the preset expansion time. The gear 131 is pushed to rotate clockwise to drive the mounting shaft 11 to rotate clockwise, so that the excess amount is recovered to the film coil 200, so that the film on the valve box is in a nearly tensioned state, and then sealed and cut, so that the bagging can be prevented from being loose. Therefore, the above solution can reduce the collision between the gear 131 and the rack 132 and prevent the bagging from being loose.

[0043] The rack 132 moves to drive the film placing mechanism 11 to rotate clockwise. Specifically, the locking assembly 13 further includes a second cylinder (not shown) that drives the rack 132 to move in the horizontal direction. In this embodiment, the first cylinder 133 and the second cylinder constitute a cylinder group that drives the rack 132 to move. Specifically, the rack 132 is fixed on the plunger of the first cylinder 133, and the first cylinder 133 is installed on the shaft bracket 112 through a horizontal sliding structure (unnumbered). The first cylinder 133 is specifically fixed on a sliding plate 134 of the sliding structure, and the second cylinder is fixed on the shaft bracket 112, and its plunger is connected to the sliding plate 134, so that the second cylinder can push the sliding plate 134 to move in the horizontal direction, that is, the second cylinder drives the rack 132 to move in the horizontal direction. When the rack 132 and the gear 131 are engaged, the rack 132 moves in the horizontal direction to drive the gear 131 to rotate clockwise. In this way, the mounting shaft 11 rotates clockwise, and the released film is recovered onto the film roll 200.

[0044] The shaft support 112 on the side where the locking assembly 13 is arranged includes a first support plate 1121 and a second support plate 1122 arranged side by side. The second cylinder is fixed on the second support plate 1122 , and the sliding structure and the first cylinder are arranged on the first support plate 1121 .

[0045] It should be noted that, in the prior art, the sensing device for detecting the position of the valve box is usually arranged at a certain position away from the sealing and cutting mechanism 12. When the rear end of the valve box moves to the rear side of the sealing and cutting mechanism 12 (that is, when the valve box moves to the sealing and cutting position), the sensing device detects the valve box, thereby starting the sealing and cutting mechanism 12. However, the arrangement of the detection device in the prior art is usually performed on valve boxes of the same size. When packaging valve boxes of different sizes, the position of the sensing device needs to be readjusted, which is rather cumbersome.

[0046] In this embodiment, when packaging valve boxes of different sizes, there is no need to adjust the position of the sensing device. The sensing device is set at a certain position. Generally speaking, the sensing device is arranged in front of the sealing and cutting mechanism 12. When packaging the valve box, the size of the valve box to be packaged is first input into the control device. When the sensing device detects the valve box, the control device will calculate the time it takes for the valve box to reach the sealing and cutting position based on the distance between the sensing device and the sealing and cutting mechanism 12, the size of the valve box and the moving speed of the valve box. .

[0047] It should also be noted that considering the tension of the film and the dimensional tolerance of the valve, generally speaking, a reserve amount is set when bagging. The reserved amount is in the length direction and will not affect the packaging of the valve box.

[0048] In addition, in practical applications, the control device and the sensing device may have certain detection errors and response delays. In order to solve this problem and take into account the reserved amount and the packaging of valve boxes of different sizes without adjusting the position of the sensing device, the time required for the movement corresponding to the size of the valve box in this embodiment is The calculation formula is:

[0049]

[0050] in, is the calibration coefficient used to correct the error in position detection, is the position of the valve box at time t, is the movement speed of the valve box; is the length of the valve box; is the width of the valve box; is the height of the valve box; It is the film reserve amount.

[0051] In the above formula, the calibration factor It is determined based on the debugging and experience of the actual system. The moving speed of the valve box is the conveying speed of the roller conveyor line 14, which is usually a constant value.

[0052] The valve box packaging line of the present application can realize automatic packaging of the valve box by setting a bagging machine 10, two horizontal wrapping machines and a transfer conveyor line 30. In addition, during the packaging process, a locking component 13 is set on the bagging machine 10, and according to the position of the sensing device, the size of the valve box, the moving speed of the valve box and the preset release time, the valve box can be automatically packaged. To control the locking assembly 13 to lock the film release mechanism 11, so as to avoid the locking assembly 13 from being hit by the gear 131 and the rack 132 when locking the film release mechanism 11, thereby reducing the service life of the locking assembly 13. The rack 132 is controlled to move to drive the film placing mechanism 11 to rotate clockwise, thereby tightening the bag on the valve box to prevent the bag from being loose and affecting the packaging effect. Therefore, the valve box packaging line can reduce the collision between the gear and the rack and prevent the bag from being loose.

[0053] A bearing 141 is installed on the installation shaft 111 on one side of the locking mechanism, and the shaft bracket 112 also includes a first support plate 1123 arranged on the first bracket plate 1121. A semicircular groove (not numbered) is formed on the first support plate 1123 to accommodate the bearing 141. The installation shaft 111 is also provided with a stopper sheet 142, and a limiting groove 143 is formed between the stopper sheet 142 and the bearing 141. A first U-shaped frame body 1124 is provided on the first support plate 1123, and the first U-shaped frame body 1124 is inserted into the limiting groove 143 to achieve axial limiting of the installation shaft 111.

[0054] In this embodiment, the locking mechanism is only provided at one end of the installation shaft 111, and the structures of the two ends of the installation shaft 111 are different. Of course, in other embodiments, the locking mechanism may also be two respectively provided at the two ends of the installation shaft 111, and the structures of the two ends of the installation shaft 111 may also be the same. In this embodiment, the shaft bracket 112 also includes a second support plate 1125, on which a second U-shaped frame 1126 and two roller groups 144 provided on one side of the second U-shaped frame 1126 are installed. The two roller groups 144 are arranged horizontally front and back, and the axis of the roller group 144 is parallel to the axis of the installation shaft 111. After the other end of the installation shaft 111 is inserted into the second U-shaped frame 1126, it is tangent to both roller groups 144. By such a configuration, only one locking mechanism is required, which effectively avoids the problem of coordination between the two locking mechanisms, and is beneficial to the control of the control device.

[0055] The sealing and cutting mechanism 12 is provided with a roller mounting plate (not shown), a pressing roller (not shown) mounted on the roller mounting plate, and a driving cylinder 126 for driving the roller mounting plate to move in the height direction. The sealing and cutting mechanism 12 adopts the existing technology and will not be described in detail here. In this embodiment, the roller mounting plate is located at the rear side of the sealing and cutting mechanism 12. When the valve seat moves to the bottom of the sealing and cutting mechanism 12, the driving cylinder 126 pushes the pressing roller to move downward, so that the pressing roller presses against the top of the valve seat. During the process of the valve seat moving forward, the pressing roller presses against the valve seat so that the bag can be attached to the valve seat to further prevent the bag from loosening.

[0056] See also Figure 5 The first horizontal wrapping machine 21 and the second horizontal wrapping machine 22 have the same structure. The first horizontal wrapping machine 21 is described below. The first horizontal wrapping machine 21 includes a wrapping machine body 211 and a first conveying mechanism 213 at least partially located in a wrapping cavity 212 of the wrapping machine body 211, and a cutting assembly 214 arranged in the first conveying mechanism 213.

[0057] The first conveying mechanism 213 includes two sets of conveying components 2131 arranged opposite to each other and located in the winding chamber 212 and a power source 2132 for driving the conveying components 2131 to operate. The two sets of conveying components 2131 extend along the axial direction of the winding chamber 212, and an installation space for installing the cutting component 214 is formed between the two sets of conveying components 2131. A passage for the cutting component 214 to grab the winding belt is formed between the first conveying mechanism 213 and the conveying line (described later) on the rear side. The conveying component 2131 includes a roller group (unnumbered) driven by the power source 2132 and a conveying belt (unnumbered) sleeved on the roller group. In this embodiment, by arranging the first conveying mechanism 213 in the winding chamber 212, the valve box will not get stuck during the conveying process, thereby improving the smoothness of the conveying, and by arranging the cutting component 214 in the installation space between the two sets of conveying components 2131, the overall structure is more compact.

[0058] See also Figures 6 to 8 The transfer conveyor line 30 includes a steering conveyor line 31. The steering conveyor line 31 includes a first frame 311, a plurality of first rollers 312, a steering platform 313, a lifting mechanism 314 and a rotating mechanism 315. The plurality of first rollers 312 are arranged on the first frame 311, and a motor 316 for driving the first rollers 312 to rotate is arranged on the first frame 311. A mounting portion 317 for mounting the steering platform 313 is formed between the plurality of first rollers 312. The steering platform 313 is located in the mounting portion 317 at the initial position. In this embodiment, the steering platform 313 is a well-shaped mechanism. The rotating mechanism 314 and the lifting mechanism 315 are located below the first rollers 312, the steering platform 313 is arranged on the rotating mechanism 314, the rotating mechanism 314 is mounted on the lifting mechanism 315, and the lifting mechanism 315 is fixed on the first frame 311.

[0059] The sensing device includes a laser sensor 318 disposed on the first frame 311. When the valve box moves to the position sensed by the laser sensor 318, the lifting mechanism 315 is started to drive the rotating mechanism 314 to move upward, so that the turning platform 313 moves from the initial position to the turning position, and the turning position is that the lowest surface of the turning platform 313 is higher than the highest surface of the first roller 312, and then the rotating mechanism 314 is started to make the turning platform 313 rotate horizontally by 90°, so that the valve box rotates 90° to achieve the subsequent second horizontal wrapping machine to wrap and package in another direction. After the turning of the turning platform 313 is completed, the lifting mechanism 315 is started again to drive the rotating mechanism 314 to move downward, so that the turning platform 313 moves from the turning position to the initial position, and at the initial position, the highest surface of the turning platform 313 is lower than the highest surface of the first roller 312, so that the bottom surface of the valve box will contact the first roller 312, and when the motor 316 is started, the first roller 312 rotates to move the valve box toward the second horizontal wrapping machine.

[0060] See also Figure 6 and Fig. 9 , the transfer conveyor line 30 also includes two reversing conveyor lines 32. The two reversing conveyor lines 32 have similar structures and are perpendicular to each other. Each reversing conveyor line 32 includes a second conveying mechanism 321 and a third conveying mechanism 322. The conveying direction of the second conveying mechanism 321 is perpendicular to the conveying direction of the third conveying mechanism 322. The second conveying mechanism 321 includes a plurality of second rollers 3211 arranged in parallel, and a lifting interval 3212 is formed between some of the second rollers 3211. The third conveying mechanism 322 includes a plurality of conveying components 3221 and a lifting component 3222 that drives the conveying components 3221 to move in the height direction. The plurality of conveying components 3221 are arranged within the lifting interval 3212, and the conveying components 3221 have a first position and a second position. In the first position, the upper surface of the conveying component 3221 is lower than the highest surface of the second roller 3211, and in the second position, the upper surface of the conveying component 3221 is higher than the highest surface of the second roller 3211.

[0061] The reversing conveyor line 32 also includes a second frame 323 for fixing the second conveying mechanism 321 and the third conveying mechanism 322. In this embodiment, each conveying assembly 3221 is formed by a roller and a belt combination. Several conveying assemblies 3221 are connected by a connecting rod 3223, and the driving wheel in the roller is installed on the connecting rod 3223. One end of the connecting rod 3223 is connected to the driving motor 3224, so the driving motor 3224 is fixed on the second frame 323.

[0062] The lifting assembly 3222 drives the conveying assembly 3221 to switch between the first position and the second position. The lifting assembly 3222 includes a rotating member 32223 and a power source (not shown). The power source 2132 drives the rotating member 32223 to rotate to push the conveying assembly 3221 to move in the height direction relative to the second roller 3211 to switch between the first position and the second position.

[0063] The lifting assembly 3222 also includes a plurality of shaft seat assemblies, and the shaft seat assemblies include a first shaft seat 32221 fixed on the second frame 323 and a second shaft seat 32222 fixed below the conveying assembly 3221. The rotating member 32223 has a triangular structure. The first shaft seat 32221, the second shaft seat 32222 and the power source are respectively connected to the positions of the three end angles close to the rotating member 32223, and the power source is a cylinder. In this embodiment, the number of cylinders is arranged as two, and the shaft seat assemblies form a unit in pairs. The shaft seat assemblies in each unit are connected by a connecting rod 32224, and each cylinder corresponds to a unit setting.

[0064] The sensing device includes a detection member (not numbered), which is located on one side of the third conveying mechanism 322 and is used to detect the position of the valve box. The normal position of the conveying assembly 3221 is the first position. When the valve box moves to the top of the conveying assembly 3221, the detection member detects the valve box, the cylinder is started, and the rotating member 32223 is driven to rotate. Since the first shaft seat 32221 is fixed on the second frame 323 and cannot move, and the rotating member 32223 is a triangular structure, the rotating member 32223 will rotate with the first shaft seat 32221 as the axis under the drive of the cylinder. In this way, the first shaft seat 32221 moves upward to push the conveying assembly 3221 to move upward from the first position to the second position. At this time, the bottom surface of the valve box is separated from the second roller 3211, and the drive motor 3224 is started to make the conveying assembly 3221 run, and the valve box is conveyed to the third conveying mechanism of another reversing conveying line 32.

[0065] Please combine Figure 1In this embodiment, the two reversing conveyor lines 32 and the steering conveyor line 31 form a U-shaped conveying route. According to the conveying route of the valve box, the steering conveyor line 31 is located at the rear side of the reversing conveyor line 32 on the rear side, and the conveying component 3221 of the reversing conveyor line 32 on the rear side is arranged close to the side of the steering conveyor line 31. The first horizontal wrapping machine 21 is located in front of the reversing conveyor line 31 on the front side, and the second horizontal wrapping machine 22 is located behind the steering conveyor line 31. A first translation conveyor line 51 is arranged between the two, and a second translation conveyor line 52 is arranged behind the second horizontal wrapping machine 22. A third translation conveyor line 53 is arranged at the front side of the bagging machine 10. The first translation conveyor line 51 and the third translation conveyor line 53 are both provided with a centering component, and the centering component can adopt an existing structure. Aisles are formed between the first conveying mechanism of the first horizontal wrapping machine 21 and the reversing conveyor line 32, and between the first conveying mechanism of the second horizontal wrapping machine 22 and the second translation conveyor line 52.

[0066] 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.

[0067] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A valve box packaging line, characterized in that: include: The bagging machine comprises two film placing mechanisms arranged opposite to each other in an upper and lower direction and a sealing and cutting mechanism located behind the film placing mechanisms; the film placing mechanism comprises a mounting shaft for mounting a film coil and two shaft brackets for supporting two ends of the mounting shaft; A horizontal wrapping machine, comprising a first horizontal wrapping machine and a second horizontal wrapping machine, wherein the first horizontal wrapping machine is arranged behind the sealing and cutting mechanism; A transfer conveyor line, disposed between the first horizontal wrapping machine and the second horizontal wrapping machine to turn the valve box; and A sensing and control system, comprising a plurality of sensing devices arranged on the bagging machine, the horizontal wrapping machine and the transfer conveyor line and a control device for controlling the operation of the bagging machine, the horizontal wrapping machine and the transfer conveyor line; Wherein, the film-releasing mechanism rotates counterclockwise under the movement of the film pushed by the valve box, and a locking assembly is arranged on the film-releasing mechanism, and the locking assembly comprises a gear fixed on the mounting shaft, a rack meshing with or separated from the gear, and a cylinder group driving the rack to move; the control device calculates the time for the valve box to reach the sealing and cutting position according to the position of the sensing device, the size of the valve box and the moving speed of the valve box, and then controls the cylinder group to drive the rack to mesh with the gear in combination with the preset release time to lock the film-releasing mechanism; the control device controls the cylinder group to drive the rack to move according to the preset release time to drive the film-releasing mechanism to rotate clockwise; The time T for the valve box to reach the sealing position m include: Among them, K is the calibration coefficient used to correct the error of position detection, P(t) is the position of the valve box at time t, V is the moving speed of the valve box; L is the length of the valve box; W is the width of the valve box; H is the height of the valve box; R is the film reserve.

2. The valve box packaging line according to claim 1, characterized in that: The sealing and cutting mechanism is provided with a roller mounting plate, a pressing roller mounted on the roller mounting plate, and a driving cylinder for driving the roller mounting plate to move in a height direction.

3. The valve box packaging line according to claim 1, characterized in that: A bearing is installed on at least one end of the installation shaft, and the shaft bracket includes a first support plate, and a semicircular groove is formed inwardly on the first support plate for accommodating the bearing.

4. The valve box packaging line according to claim 3, characterized in that: The mounting shaft is also provided with a stopper, a limiting groove is formed between the stopper and the bearing, and a first U-shaped frame is provided on the shaft support, and the first U-shaped frame is inserted into the limiting groove to achieve axial limiting.

5. The valve box packaging line according to any one of claims 2 to 4, characterized in that: The shaft bracket includes a second support plate, on which a second U-shaped frame and two roller groups arranged on one side of the second U-shaped frame are installed. The two roller groups are arranged horizontally front and back, and the axis of the roller group is parallel to the axis of the installation shaft. After the installation shaft is inserted into the second U-shaped frame, it is tangent to the two roller groups.

6. The valve box packaging line according to claim 1, characterized in that: The horizontal wrapping machine includes a wrapping machine body and a first conveying mechanism at least partially located in a wrapping cavity of the wrapping machine body. The first conveying mechanism includes two sets of conveying components that are relatively arranged and located in the wrapping cavity and a power source that drives the conveying components to operate.

7. The valve box packaging line according to claim 6, characterized in that: The horizontal winding machine also includes a cutting assembly, and an installation space for installing the cutting assembly is formed between the two groups of conveying assemblies.

8. The valve box packaging line according to claim 1, characterized in that: The transfer conveyor line includes a turning conveyor line, which includes a plurality of first rollers arranged in parallel, a turning platform, a lifting mechanism and a rotating mechanism, a mounting portion for mounting the turning platform is formed between the plurality of first rollers, the turning platform is arranged on the rotating mechanism, and the rotating mechanism is mounted on the lifting mechanism.

9. The valve box packaging line according to claim 8, characterized in that: The transfer conveyor line also includes a reversing conveyor line, which includes a second conveying mechanism and a third conveying mechanism. The conveying direction of the second conveying mechanism is perpendicular to the conveying direction of the third conveying mechanism. The second conveying mechanism includes a plurality of second rollers arranged in parallel, and a lifting gap is formed between some of the second rollers. The third conveying mechanism includes a plurality of conveying components and a lifting component that drives the conveying components to move in a height direction. Several of the conveying components are arranged within the lifting gap. The lifting component includes a rotating member and a power source. The power source drives the rotating member to rotate to push the conveying component to move in a height direction relative to the second roller.

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