A vertical sealing device for plastic bagging containing block-shaped material packages

Abstract

The present invention discloses a vertical sealing device for a plastic bag containing a block-shaped material package, comprising a supporting mechanism for the plastic bag and a clamping and shaping sealing mechanism, wherein the supporting mechanism comprises a backing plate and a supporting frame, the clamping and shaping sealing mechanism is located above the supporting mechanism, and the clamping and shaping sealing mechanism comprises a seat, a left swing arm, a right swing arm, a left clamping block, a right clamping block, a left shaping plate, a right shaping plate, a left push rod, a right push rod, a left sealing block and a right sealing block; the left clamping block and the right clamping block clamp the two sides of the bag opening end of the plastic bag; the left shaping plate and the right shaping plate shape the two sides of the bag opening of the plastic bag to form a sealing plane, and the left sealing block and the right sealing block clamp the sealing planes on both sides of the bag opening of the plastic bag to perform hot-melt sealing. The present invention can automatically shape and seal the bag opening of the plastic bag, reduce the labor intensity of operators, improve the sealing efficiency, and ensure the sealing quality.

Description

Technical Field

[0001] The invention relates to the technical field of plastic bag sealing equipment manufacturing, in particular to a vertical sealing device for plastic bagging containing block-shaped material packages. Background Art

[0002] Nowadays, in order to extend the shelf life of rice and facilitate portable movement, the rice is first packaged into block rice bags by vacuum plastic packaging, and then the block rice bags are placed in portable plastic bags, and then the opening of the portable plastic bags is sealed by heat sealing. Since the opening of the plastic bag will be stretched larger after the block rice is placed in the plastic bag, it is difficult to find the plastic cover in the middle, and it is difficult to fit the two sides of the plastic bag for hot-melt sealing. At present, there is no suitable sealing device that can automatically shape the bag opening and then seal it. The existing sealing operation mainly relies on manual shaping of the bag opening and then uses the existing sealing device to complete it. Since it needs to rely on manual assistance, it not only increases the labor intensity of the operator, but also reduces production efficiency. In addition, the sealing quality is difficult to ensure, and it is impossible to achieve automated operation, and the sealing cost is high. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a vertical sealing device for plastic bags containing block-shaped material packages, which can automatically shape and seal the bag opening of the plastic bag, reduce the labor intensity of operators, improve production efficiency, and ensure sealing quality.

[0004] To achieve the above-mentioned purpose, the technical scheme of the present invention is: a vertical sealing device for a plastic bag containing a block-shaped material bag, comprising a support mechanism for positioning the plastic bag containing the block-shaped material bag and a clamping and shaping sealing mechanism, the support mechanism comprising a support plate for positioning the thickness direction of the plastic bag and a support frame for positioning the height direction of the plastic bag, the clamping and shaping sealing mechanism is located above the support mechanism, the clamping and shaping sealing mechanism comprises a seat body, a left swing arm , right swing arm, left clamping block, right clamping block, left shaping plate, right shaping plate, left push rod, right push rod, left sealing block and right sealing block, the upper parts of the left swing arm and the right swing arm are pivotally connected to the seat body, the left clamping block is hinged to the lower part of the left swing arm, the right clamping block is hinged to the lower part of the right swing arm, the upper ends of the left push rod and the right push rod are hinged to a pressing block, the left push rod passes through the left clamping block, the lower end of the left push rod is fixedly connected to the left shaping plate, the right push rod passes through the right clamping block, and the lower end of the right push rod is fixedly connected to the right shaping plate;

[0005] The seat body is equipped with a first driving mechanism, a second driving mechanism and a third driving mechanism. The first driving mechanism drives the left swing arm and the right swing arm to move toward or away from each other, and the left push rod and the right push rod are also driven to move toward or away from each other through the left clamp block and the right clamp block; the second driving mechanism drives the pressing block to move up and down, and the third driving mechanism drives the left sealing block and the right sealing block to move toward or away from each other;

[0006] When the left swing arm and the right swing arm are closed toward each other, the left push rod and the right push rod are also closed toward each other, and the left clamping block and the right clamping block clamp the two sides of the bag opening end of the plastic bag; the second driving mechanism drives the pressing block to move downward, and the pressing block drives the left push rod and the right push rod to press downward, and the left shaping plate and the right shaping plate shape the sealing planes on both sides of the bag opening of the plastic bag. When the left sealing block and the right sealing block move toward each other, the left sealing block is inserted between the left clamping block and the left shaping plate, and the right sealing block is inserted between the right clamping block and the right shaping plate. The left sealing block and the right sealing block clamp the sealing planes on both sides of the bag opening of the plastic bag for hot-melt sealing.

[0007] Preferably, the first driving mechanism includes a first cylinder, a left gear and a right gear, the upper part of the left swing arm is fixedly connected to the left gear and is pivoted to the seat body through the left gear, the upper part of the right swing arm is fixedly connected to the right gear and is pivoted to the seat body through the right gear, the left gear and the right gear are meshed with each other, the housing of the first cylinder is hinged to the seat body, and the piston rod of the first cylinder is hinged to one side of the left swing arm or the right swing arm through a connecting piece; when the piston rod of the first cylinder is hinged to one side of the left swing arm through the connecting piece, the piston rod of the first cylinder drives the left swing arm and drives the left swing arm and the right swing arm to close together or separate from each other through the meshing of the left gear and the right gear; when the piston rod of the first cylinder is hinged to one side of the right swing arm through the connecting piece, the piston rod of the first cylinder drives the right swing arm and drives the left swing arm and the right swing arm to close together or separate from each other through the meshing of the left gear and the right gear. In this way, the driving mechanism responds quickly and is relatively convenient to control.

[0008] Preferably, the second driving mechanism includes a second cylinder, the second cylinder shell is fixed on the seat body, and the piston rod of the second cylinder is fixedly connected to the pressure block; the third driving mechanism includes a left third cylinder and a right third cylinder, the shell of the left third cylinder is fixedly connected to the seat body, the piston rod of the left third cylinder is fixedly connected to the left sealing block via a left connecting piece, the shell of the right third cylinder is fixedly connected to the seat body, and the piston rod of the right third cylinder is fixedly connected to the right sealing block via a right connecting piece.

[0009] Further improvement, a fourth cylinder is provided next to the support mechanism, and the piston rod of the fourth cylinder is connected to a push block, and the piston rod of the fourth cylinder drives the push block to push the plastic bag containing the block-shaped material package against the support plate of the support mechanism along its thickness direction, and after the left clamping block and the right clamping block clamp the two sides of the bag opening end of the plastic bag, the piston rod of the fourth cylinder drives the push block to retreat; the support frame on the support mechanism is fixedly connected to the support plate and can be adjusted relative to the support plate. In this way, the plastic bag containing the block-shaped material package can be accurately positioned and the versatility can be improved.

[0010] Preferably, the left push rod and the right push rod are provided with two, the upper ends of the two left push rods are respectively hinged on the two sides of the pressing block, the upper ends of the two right push rods are respectively hinged on the two sides of the pressing block, the two left push rods pass through the left clamping block, the left shaping plate is fixedly connected to the two left push rods, the two right push rods pass through the right clamping block, and the right shaping plate is fixedly connected to the two right push rods. Furthermore, the lengths of the left push rod and the right push rod are adjustable, the area of ​​the shaping and sealing plane can be changed, and the versatility is further improved.

[0011] As a further improvement, the seat body is also equipped with a front drive mechanism and a rear drive mechanism, the front drive mechanism drives the side surface of one side of the bag opening of the plastic bag to be concave toward the middle, and the rear drive mechanism drives the side surface of the other side of the bag opening of the plastic bag to be concave toward the middle. This can further ensure that the two sides of the plastic bag are folded toward the middle, and further ensure the sealing quality.

[0012] Preferably, the front driving mechanism includes a front bracket fixedly connected to the front side of the seat body, the front bracket is equipped with a front air blowing head, and the front air blowing head is aimed at the side of the bag opening of the plastic bag for blowing air, and the rear driving mechanism includes a rear bracket fixedly connected to the front side of the seat body, the rear bracket is equipped with a rear air blowing head, and the rear air blowing head is aimed at the side of the other side of the bag opening of the plastic bag for blowing air; or the front driving mechanism includes a front bracket fixedly connected to the front side of the seat body, the front bracket is equipped with a front cylinder, the front cylinder drives the front driving rod to drive the side of one side of the bag opening of the plastic bag to be concave toward the middle, and the rear driving mechanism includes a rear bracket fixedly connected to the rear side of the seat body, the rear bracket is equipped with a rear cylinder, and the rear cylinder drives the rear driving rod to drive the side of the other side of the bag opening of the plastic bag to be concave toward the middle.

[0013] As a further improvement, the supporting mechanism has multiple sets, each set of the supporting mechanism is fixedly connected to a rotating shaft through a support plate interval, and the rotating shaft is driven to rotate intermittently by a fourth driving mechanism, so that different supporting mechanisms can rotate to the sealing position in turn. This can increase the feeding speed and the sealing efficiency. And it can cooperate with other mechanisms to achieve automatic operation.

[0014] Further improvement, the seat body is installed on a support seat, and an adjustment screw is installed on the support seat, one end of the adjustment screw is connected to the seat body, and the seat body can be shifted left and right by turning the adjustment screw, and its moving direction is parallel to the moving direction of the left sealing block; when the seat body is stationary, the seat body and the support seat are fixedly connected by a locking mechanism. In this way, by adjusting the position of the seat body, the position of the sealing surface can be changed to meet the needs of sealing plastic bags containing block-shaped material packages of different thickness specifications, further improving versatility.

[0015] Furthermore, the two sides of the lower part of the support seat are mounted on two guide rails, and the support seat is connected to a fifth driving mechanism, which drives the support seat to move forward and backward. In this way, the entire clamping and shaping sealing mechanism can be driven to shift through the fifth driving mechanism, and the clamping and shaping sealing mechanism can clamp the plastic bag and shift it, and shift it during the sealing process, which can further improve the sealing efficiency.

[0016] The present invention is that when the left swing arm and the right swing arm are closed toward each other, the left push rod and the right push rod are also closed toward each other, and the left clamp block and the right clamp block clamp the two sides of the bag opening end of the plastic bag; the second driving mechanism drives the pressing block to move downward, and the pressing block drives the left push rod and the right push rod to press downward, and the left shaping plate and the right shaping plate shape the sealing planes on both sides of the bag opening of the plastic bag, and when the left sealing block and the right sealing block are close to each other, the left sealing block is inserted between the left clamp block and the left shaping plate, and the right sealing block is inserted between the right clamp block and the right shaping plate, and the left sealing block and the right sealing block clamp the sealing planes on both sides of the bag opening of the plastic bag to perform hot-melt sealing. Therefore, the bag opening of the plastic bag can be automatically shaped and sealed without the assistance of the operator, which greatly reduces the labor intensity of the operator, improves the sealing efficiency, can ensure the sealing quality, and reduces the packaging cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the plastic bag of the present invention before the bag mouth is clamped;

[0018] Figure 2 It is a three-dimensional diagram of the plastic bag of the present invention before the bag mouth is clamped;

[0019] Figure 3 This is a front view of the hidden parts of the clamping, shaping and sealing mechanism of the present invention;

[0020] Figure 4 This is a front view of the plastic bag of the present invention after the bag mouth is clamped;

[0021] Figure 5 It is a three-dimensional diagram of the plastic bag of the present invention after the bag mouth is clamped. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Figures 1 to 5As shown, a vertical sealing device for plastic bags containing block-shaped material packages comprises a frame (hidden in the figure), a supporting mechanism 1 for positioning the plastic bags 10 containing the block-shaped material packages, and a clamping, shaping and sealing mechanism 2. The supporting mechanism 1 comprises a backing plate 11 for positioning the plastic bags 10 in the thickness direction and a supporting frame 12 for positioning the plastic bags 10 in the height direction. The supporting frame 12 is fixedly connected to the backing plate 11 and can be adjusted relative to the backing plate 11. Specifically, the backing plate 11 is provided with two long strip openings 111, the supporting frame 12 is generally L-shaped, and a clamping plate 112 is provided on the other side of the backing plate 11. The clamping plate 112 and the supporting frame 12 are connected to the backing plate 11 by two bolts. The supporting surface of the plastic bag 10 of the supporting frame 12 and the plastic bag 10 contact surface of the backing plate 11 are perpendicular to each other; by loosening the two bolts, the relative position of the supporting frame 12 and the backing plate 11 can be adjusted to adapt to plastic bags 10 of different specifications and improve versatility.

[0024] The clamping, shaping and sealing mechanism 2 is located above the supporting mechanism 1, and the clamping, shaping and sealing mechanism 2 comprises a seat body 21, a left swing arm 22, a right swing arm 221, a left clamping block 23, a right clamping block 231, a left shaping plate 24, a right shaping plate 241, a left push rod 25, a right push rod 251, a left sealing block 26 and a right sealing block 261. The upper parts of the left swing arm 22 and the right swing arm 221 are pivotally connected to the seat body 21, the left clamping block 23 is hinged to the lower part of the left swing arm 22, the right clamping block 231 is hinged to the lower part of the right swing arm 221, the upper ends of the left push rod 25 and the right push rod 251 are hinged to a pressing block 27, the left push rod 25 passes through the left clamping block 23, the lower end of the left push rod 25 is fixedly connected to the left shaping plate 24, the right push rod 251 passes through the right clamping block 231, and the lower end of the right push rod 251 is fixedly connected to the right shaping plate 241;

[0025] There are two left push rods 25 and two right push rods 251, the upper ends of the two left push rods 25 are respectively hinged on both sides of the pressing block 27, the upper ends of the two right push rods 251 are respectively hinged on both sides of the pressing block 27, the two left push rods 25 pass through the left clamping block 23, the left shaping plate 24 is fixedly connected to the two left push rods 25, the two right push rods 251 pass through the right clamping block 231, and the right shaping plate 241 is fixedly connected to the two right push rods 251. The length of each left push rod 25 is adjustable, and the length of each right push rod 251 is adjustable, so as to further improve the versatility.

[0026] The seat body 21 is provided with a first driving mechanism 3, a second driving mechanism 4 and a third driving mechanism 5. The first driving mechanism 3 drives the left swing arm 22 and the right swing arm 221 to close together or separate from each other, and the left push rod 25 and the right push rod 251 are also driven to close together or separate from each other through the left clamp block 23 and the right clamp block 231; the first driving mechanism 3 includes a first cylinder 31, a left gear 32 and a right gear 321. The upper part of the left swing arm 22 is fixedly connected to the left gear 32 and is pivotally connected to the seat body 21 through the left gear 32. The upper part of the right swing arm 221 is fixedly connected to the right gear 321 and is pivoted to the base body 21 through the right gear 321, the left gear 32 and the right gear 321 are meshed with each other, the shell of the first cylinder 31 is hinged to the base body 21, and the piston rod of the first cylinder 31 is hinged to one side of the right swing arm 221 through the connecting piece 311; the piston rod of the first cylinder 31 drives the right swing arm 221 and drives the left swing arm 22 and the right swing arm 221 to close together or separate from each other through the meshing of the left gear 32 and the right gear 321.

[0027] The second driving mechanism 4 drives the pressing block 27 to move up and down. The second driving mechanism 4 includes a second cylinder 41 . The shell of the second cylinder 41 is fixed on the base 21 . The piston rod of the second cylinder 41 is fixedly connected to the pressing block 27 .

[0028] The third driving mechanism 5 drives the left sealing block 26 and the right sealing block 261 to move toward or away from each other; the third driving mechanism 5 comprises a left third cylinder 51 and a right third cylinder 52, the shell of the left third cylinder 51 is fixedly connected to the seat body 21, the piston rod of the left third cylinder 51 is fixedly connected to the left sealing block 26 through a left connecting member 511, the shell of the right third cylinder 52 is fixedly connected to the seat body 21, and the piston rod of the right third cylinder 52 is fixedly connected to the right sealing block 261 through a right connecting member 521. Heaters are installed on both the left sealing block 26 and the right sealing block 261.

[0029] When the left swing arm 22 and the right swing arm 221 are closed towards each other, the left push rod 25 and the right push rod 251 are also closed towards each other, and the left clamping block 23 and the right clamping block 231 clamp the two sides of the bag opening end of the plastic bag 10; the second driving mechanism 4 drives the pressing block 27 to move downward, and the pressing block 27 drives the left push rod 25 and the right push rod 251 to press downward, and the left shaping plate 24 and the right shaping plate 241 shape the sealing planes on both sides of the bag opening of the plastic bag 10. When the left sealing block 26 and the right sealing block 261 are close to each other, the left sealing block 26 is inserted between the left clamping block 23 and the left shaping plate 24, and the right sealing block 261 is inserted between the right clamping block 231 and the right shaping plate 241. The left sealing block 26 and the right sealing block 261 clamp the sealing planes on both sides of the bag opening of the plastic bag 10 for hot-melt sealing.

[0030] When the left push rod 25 and the right push rod 251 are also closed toward each other, a spacing is left between the facing sides of the left shaping plate 24 and the right shaping plate 241 , and the spacing can be set according to the thickness of the plastic bag 10 .

[0031] A fourth cylinder 6 is provided next to the support mechanism 1, and the piston rod of the fourth cylinder 6 is connected to a push block 61. The piston rod of the fourth cylinder 6 drives the push block 61 to push the plastic bag 10 containing the block-shaped material package against the support plate 11 of the support mechanism 1 along its thickness direction. After the left clamping block 23 and the right clamping block 231 clamp the two sides of the bag opening end of the plastic bag 10, the piston rod of the fourth cylinder 6 drives the push block 61 to retreat.

[0032] The seat body 21 is also provided with a front driving mechanism 7 and a rear driving mechanism 8. The front driving mechanism 7 drives the side surface of one side of the bag opening of the plastic bag 10 to be concave toward the middle, and the rear driving mechanism 8 drives the side surface of the other side of the bag opening of the plastic bag 10 to be concave toward the middle.

[0033] The front driving mechanism 7 includes a front bracket 71 fixedly connected to the front side of the seat body 21, and the front bracket 71 is equipped with a front air blowing head 72, which is aimed at the side of the bag opening of the plastic bag 10 for blowing air. The rear driving mechanism 8 includes a rear bracket 81 fixedly connected to the front side of the seat body 21, and the rear bracket 81 is equipped with a rear air blowing head 82, which is aimed at the side of the other side of the bag opening of the plastic bag 10 for blowing air.

[0034] Alternatively, the front driving mechanism 7 includes a front bracket 71 fixedly connected to the front side of the seat body 21, the front bracket 71 is equipped with a front cylinder, the front cylinder drives the front driving rod to drive the side of the bag opening of the plastic bag 10 to be concave toward the middle, and the rear driving mechanism 8 includes a rear bracket 81 fixedly connected to the rear side of the seat body 21, the rear bracket 81 is equipped with a rear cylinder, the rear cylinder drives the rear driving rod to drive the side of the other side of the bag opening of the plastic bag 10 to be concave toward the middle (this part is not shown in the figure).

[0035] The support mechanism 1 has four sets, each set of the support mechanism 1 is fixedly connected to a rotating shaft 71 at intervals through a support plate 11, and the four sets of support mechanisms 1 are spaced 90 degrees in the circumferential direction of the rotating shaft 71. The rotating shaft 71 is driven to rotate intermittently by the fourth driving mechanism 7, so that different support mechanisms 1 can rotate to the sealing position (vertical position) in turn. The fourth driving mechanism 7 may include a driving motor 72 and a reducer 73, the driving motor 72 is connected to the reducer 73, and the reducer 73 is further connected to the rotating shaft 71.

[0036] The seat body 21 is mounted on a support seat 8, and an adjustment screw 81 is mounted on the support seat 8. One end of the adjustment screw 81 is connected to the seat body 21. Rotating the adjustment screw 81 can cause the seat body 21 to shift left and right, and its moving direction is parallel to the moving direction of the left sealing block 26. When the seat body 21 is stationary, a locking mechanism 82 is used to fix the seat body 21 and the support seat 8. The other end of the adjustment screw 81 is fixedly connected to a rotating handle 811. The locking mechanism 82 may include a locking handle. The seat body 21 is mounted on two grooved tracks 83 on a support seat 8. A clamping block is mounted in the groove of the track 83. Rotating the handle 811 can cause the clamping block to clamp the track or be in a relaxed state. By adjusting the position of the seat body 21, the clamping position and sealing surface position of the entire clamping and shaping sealing mechanism 2 can be adjusted to adapt to the sealing of block-shaped material packages of different thicknesses, further improving versatility.

[0037] The two sides of the lower part of the support seat 8 are mounted on two guide rails 91, and the support seat 8 is connected to a fifth driving mechanism 9, which drives the support seat 8 to move forward and backward. The fifth driving mechanism 9 includes a fifth driving cylinder 92, the shell of the fifth driving cylinder 92 can be fixed on the frame, the piston rod of the fifth driving cylinder 92 is connected to the support seat 8, and the piston rod of the fifth driving cylinder 92 drives the support seat 8 and the entire clamping, shaping and sealing mechanism 2 to move forward and backward.

[0038] The plastic bag 10 of this embodiment can be a plastic bag with handles. The plastic bag with handles has a crease line in the middle of the side surface, as shown by the dotted line of the plastic bag 10 in the figure. The handle part is bent at the bottom and supported on the support frame 12.

[0039] The working process of the present invention is as follows:

[0040] like Figure 1 As shown, the plastic bag 10 containing block-shaped material packages (such as vacuum-packed block-shaped rice packages) is pushed onto a set of supporting mechanisms 1 whose backing plate 11 is in a horizontal state. The supporting mechanism 1 is rotated to a vertical position under the drive of the fourth driving mechanism 7, and then the piston rod of the fourth cylinder 6 drives the push block 61 to push the plastic bag 10 containing block-shaped material packages onto the backing plate 11 of the supporting mechanism 1. Another set of supporting mechanisms 1 rotated to a horizontal position can receive the next plastic bag 10 to increase the feeding speed.

[0041] Next, the front blowing head 72 blows air toward the side of one side of the bag opening of the plastic bag 10, and the side of the bag opening of the plastic bag 10 is concave toward the middle, and the rear blowing head 82 blows air toward the side of the other side of the bag opening of the plastic bag 10, and the side of the other side of the bag opening of the plastic bag 10 is concave toward the middle; then the first driving mechanism 3 drives the left swing arm 22 and the right swing arm 221 to close toward each other, the left push rod 25 and the right push rod 251 also close toward each other, and the left clamping block 23 and the right clamping block 231 clamp the two sides of the bag opening end of the plastic bag 10; then the second driving mechanism 4 drives the pressing The block 27 moves downward, and the pressing block 27 drives the left push rod 25 and the right push rod 251 to press downward, and the left shaping plate 24 and the right shaping plate 241 shape the sealing planes on both sides of the bag opening of the plastic bag 10, and then the third driving mechanism 5 drives the left sealing block 26 and the right sealing block 261 to move towards each other, and the left sealing block 26 is inserted between the left clamping block 23 and the left shaping plate 24, and the right sealing block 261 is inserted between the right clamping block 231 and the right shaping plate 241, and the left sealing block 26 and the right sealing block 261 clamp the sealing planes on both sides of the bag opening of the plastic bag 10 to perform hot melt sealing. Figure 4 , Figure 5 shown.

[0042] After the left clamp block 23 and the right clamp block 231 clamp the two sides of the bag opening of the plastic bag 10, the piston rod of the fourth cylinder 6 can drive the top block 61 to retreat, the fifth driving cylinder 92 is actuated, and the piston rod of the fifth driving cylinder 92 drives the support seat 8 and the entire clamping and shaping sealing mechanism 2 to move forward, and the plastic bag 10 containing the block-shaped material package can be moved out of the support mechanism 1 during the edge sealing process. Then reset to enter the sealing of the next plastic bag 10.

[0043] The above is only a preferred embodiment of the present invention. Any equivalent changes made by those skilled in the art according to the claims shall fall within the protection scope of this case.

Claims

1. A vertical sealing device for plastic bags containing block-shaped material packages, characterized in that: It includes a supporting mechanism for positioning a plastic bag containing block-shaped material bags and a clamping, shaping and sealing mechanism, the supporting mechanism includes a back plate for positioning the plastic bag in the thickness direction and a supporting frame for positioning the plastic bag in the height direction, the clamping, shaping and sealing mechanism is located above the supporting mechanism, the clamping, shaping and sealing mechanism includes a seat body, a left swing arm, a right swing arm, a left clamping block, a right clamping block, a left shaping plate, a right shaping plate, a left push rod, a right push rod, a left sealing block and a right sealing block, the upper parts of the left swing arm and the right swing arm are pivotally connected to the seat body, the left clamping block is hinged to the lower part of the left swing arm, the right clamping block is hinged to the lower part of the right swing arm, the upper ends of the left push rod and the right push rod are hinged to a pressing block, the left push rod passes through the left clamping block, the lower end of the left push rod is fixedly connected to the left shaping plate, the right push rod passes through the right clamping block, and the lower end of the right push rod is fixedly connected to the right shaping plate; The seat body is equipped with a first driving mechanism, a second driving mechanism and a third driving mechanism. The first driving mechanism drives the left swing arm and the right swing arm to move toward or away from each other, and the left push rod and the right push rod are also driven to move toward or away from each other through the left clamp block and the right clamp block; the second driving mechanism drives the pressing block to move up and down, and the third driving mechanism drives the left sealing block and the right sealing block to move toward or away from each other; When the left swing arm and the right swing arm are closed toward each other, the left push rod and the right push rod are also closed toward each other, and the left clamping block and the right clamping block clamp the two sides of the bag opening end of the plastic bag; the second driving mechanism drives the pressing block to move downward, and the pressing block drives the left push rod and the right push rod to press downward, and the left shaping plate and the right shaping plate shape the sealing planes on both sides of the bag opening of the plastic bag. When the left sealing block and the right sealing block move toward each other, the left sealing block is inserted between the left clamping block and the left shaping plate, and the right sealing block is inserted between the right clamping block and the right shaping plate. The left sealing block and the right sealing block clamp the sealing planes on both sides of the bag opening of the plastic bag for hot-melt sealing.

2. A vertical sealing device for plastic bags containing block-shaped material packages according to claim 1, characterized in that: The first driving mechanism includes a first cylinder, a left gear and a right gear. The upper part of the left swing arm is fixedly connected to the left gear and is pivoted to the seat body through the left gear. The upper part of the right swing arm is fixedly connected to the right gear and is pivoted to the seat body through the right gear. The left gear and the right gear are meshed with each other. The shell of the first cylinder is hinged to the seat body. The piston rod of the first cylinder is hinged to one side of the left swing arm or the right swing arm through a connecting piece. When the piston rod of the first cylinder is hinged to one side of the left swing arm through the connecting piece, the piston rod of the first cylinder drives the left swing arm and drives the left and right swing arms to close together or separate from each other through the meshing of the left gear and the right gear. When the piston rod of the first cylinder is hinged to one side of the right swing arm through the connecting piece, the piston rod of the first cylinder drives the right swing arm and drives the left and right swing arms to close together or separate from each other through the meshing of the left gear and the right gear.

3. A vertical sealing device for plastic bagging containing block-shaped material packages according to claim 1, characterized in that: The second driving mechanism includes a second cylinder, the second cylinder shell is fixed on the seat body, and the piston rod of the second cylinder is fixedly connected to the pressure block; the third driving mechanism includes a left third cylinder and a right third cylinder, the shell of the left third cylinder is fixedly connected to the seat body, the piston rod of the left third cylinder is fixedly connected to the left sealing block through a left connecting piece, the shell of the right third cylinder is fixedly connected to the seat body, and the piston rod of the right third cylinder is fixedly connected to the right sealing block through a right connecting piece.

4. A vertical sealing device for plastic bagging containing block-shaped material packages according to claim 1, characterized in that: A fourth cylinder is provided next to the support mechanism, and the piston rod of the fourth cylinder is connected to a push block. The piston rod of the fourth cylinder drives the push block to push the plastic bag containing the block-shaped material package against the support plate of the support mechanism along its thickness direction. After the left clamping block and the right clamping block clamp the two sides of the bag opening end of the plastic bag, the piston rod of the fourth cylinder drives the push block to retreat; the support frame on the support mechanism is fixedly connected to the support plate and can adjust its position relative to the support plate.

5. A vertical sealing device for plastic bagging containing block-shaped material packages according to claim 1, characterized in that: The left push rod and the right push rod are each provided with two, the upper ends of the two left push rods are respectively hinged on both sides of the pressing block, the upper ends of the two right push rods are respectively hinged on both sides of the pressing block, the two left push rods both pass through the left clamping block, the left shaping plate is fixedly connected to the two left push rods, the two right push rods both pass through the right clamping block, and the right shaping plate is fixedly connected to the two right push rods.

6. A vertical sealing device for plastic bagging containing block-shaped material packages according to claim 1, characterized in that: The seat body is also provided with a front driving mechanism and a rear driving mechanism. The front driving mechanism drives the side surface of one side of the bag opening of the plastic bag to be concave toward the middle, and the rear driving mechanism drives the side surface of the other side of the bag opening of the plastic bag to be concave toward the middle.

7. A vertical sealing device for plastic bags containing block-shaped material packages according to claim 6, characterized in that: The front driving mechanism includes a front bracket fixedly connected to the front side of the seat body, the front bracket is equipped with a front air blowing head, and the front air blowing head is aimed at the side of the bag opening of the plastic bag for blowing air; the rear driving mechanism includes a rear bracket fixedly connected to the front side of the seat body, the rear bracket is equipped with a rear air blowing head, and the rear air blowing head is aimed at the side of the other side of the bag opening of the plastic bag for blowing air; or the front driving mechanism includes a front bracket fixedly connected to the front side of the seat body, the front bracket is equipped with a front cylinder, the front cylinder drives the front driving rod to drive the side of one side of the bag opening of the plastic bag to be concave toward the middle, and the rear driving mechanism includes a rear bracket fixedly connected to the rear side of the seat body, the rear bracket is equipped with a rear cylinder, and the rear cylinder drives the rear driving rod to drive the side of the other side of the bag opening of the plastic bag to be concave toward the middle.

8. A vertical sealing device for plastic bagging containing block-shaped material packages according to claim 1, characterized in that: There are multiple sets of the support mechanisms, each set of the support mechanisms is fixedly connected to a rotating shaft through a support plate interval, and the rotating shaft is driven to rotate intermittently by a fourth driving mechanism, so that different support mechanisms can rotate to the sealing position in turn.

9. A vertical sealing device for plastic bags containing block-shaped material packages according to any one of claims 1 to 8, characterized in that: The seat body is installed on a support seat, and an adjusting screw is installed on the support seat. One end of the adjusting screw is connected to the seat body. Rotating the adjusting screw can cause the seat body to shift left and right, and its moving direction is parallel to the moving direction of the left sealing block. When the seat body is stationary, a locking mechanism is used to fix the seat body and the support seat.

10. A vertical sealing device for plastic bags containing block-shaped material packages according to claim 9, characterized in that: The two sides of the lower part of the support seat are mounted on two guide rails. The support seat is connected to a fifth driving mechanism, and the fifth driving mechanism drives the support seat to move forward and backward.

Images