Packaging machine capable of improving utilization rate of ton bags

Abstract

The invention relates to the technical field of packaging, in particular to a packaging machine capable of improving the utilization rate of ton bags. The packaging machine capable of improving the ton bag utilization rate comprises a discharging mechanism, the discharging mechanism comprises a support, a transferring assembly, a containing plate and a first mounting plate, the transferring assembly is arranged on the lower portion of the support, the containing plate is connected to the right portion of the transferring assembly, and the first mounting plate is connected to the upper portion of the support. According to the ton bag weighing device, an adjusting mechanism and a lifting fixing mechanism are installed, an electric push rod makes contact with a ton bag with a first fixing plate and a second fixing plate and clamps the ton bag, in this way, the situation that weighing data are inaccurate due to the fact that the ton bag shakes in the discharging process, a third fixing plate is moved upwards or unfolded can be prevented, and the ton bag weighing device can accurately weigh the ton bag according to the size and shape of the ton bag. And the distance between the first fixing plate and the second fixing plate is adjusted, so that the device can fix and adjust different types of ton bags, and the adaptability of the device to the ton bags is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of packaging, and in particular to a packaging machine capable of improving the utilization rate of ton bags. Background Art

[0002] Ton bag packaging machine is a large-scale weighing packaging equipment used for ton bag packaging of materials. It is a multi-purpose packaging machine that integrates electronic weighing, automatic bag removal and dust removal. It has a high degree of automation, high packaging accuracy, adjustable packaging speed, superior structure, and a unique hydraulic lifting system that makes it particularly easy to handle ton bag packaging and is very convenient for subsequent processing. Ton bag packaging machine is suitable for ton bag packaging of materials in industries such as mining, chemical, building materials, grain, and feed.

[0003] A ton bag packaging machine based on the patent authorization publication number CN113788171A and the announcement date 2021-12-14. It includes a frame, a hopper, a loading control mechanism, a ton bag lifting mechanism, and a ton bag conveying mechanism; the frame is used to support the hopper, the loading control mechanism, and the ton bag lifting mechanism; the frame is a column frame bracket, and a ton bag adjusting platform is arranged on the bracket, and the ton bag lifting mechanism is arranged on the ton bag adjusting platform; the ton bag adjusting mechanism includes a fixed bracket arranged on the ton bag adjusting platform and a movable bracket arranged below the ton bag adjusting platform, and a weight sensor is arranged between the fixed bracket and the ton bag adjusting platform; the load of the feed pipe, the ton bag clamping mechanism and the material contained in the ton bag are all borne by the movable bracket, and the weight sensor weighs the weight of the feed pipe, the ton bag clamping mechanism and the material contained in the ton bag in real time, so the net increment weighed is the weight of the material in the ton bag, thereby making the weighing more accurate, and this device can control the discharging according to the weighing mechanism, achieve accurate packaging, and improve the bagging efficiency, but this device cannot adjust the bracket according to ton bags of different sizes and specifications, and can only package ton bags of specific sizes and shapes, and has low adaptability to ton bags.

[0004] Therefore, we are in urgent need of a packaging machine that can improve the utilization rate of ton bags. Summary of the invention

[0005] In order to overcome the above-mentioned disadvantages of the prior art, the present invention provides a packaging machine capable of improving the utilization rate of ton bags.

[0006] In order to solve the above technical problems, the present invention provides a packaging machine for improving the utilization rate of ton bags, including a feeding mechanism, a ton bag, a weighing mechanism, an adjusting mechanism and a clamping mechanism. The feeding mechanism includes a bracket, a transfer assembly, a placement plate, a first mounting plate, a feeding hopper, a feeding pipe and a second mounting plate. The lower part of the bracket is provided with a transfer assembly, the right part of the transfer assembly is connected with the placement plate, the upper part of the bracket is connected with the first mounting plate, the first mounting plate is penetrated with a feeding hopper, the bottom side of the first mounting plate is placed with a second mounting plate through a placement rack, the second mounting plate is penetrated with a feeding pipe, the feeding port of the feeding pipe is connected with the feeding port of the feeding hopper, a ton bag is placed on the upper side of the placement plate, the ton bag is provided with a bag opening, the bag opening can wrap the feeding pipe, the first mounting plate The mounting plate and the second mounting plate are jointly provided with a weighing mechanism, and the placement plate is provided with an adjusting mechanism, which includes an electric push rod, a first fixed plate, a second fixed plate, a first rotating plate and an L-shaped connecting rod. An electric push rod is installed on the bottom side of the placement plate, and the right part of the placement plate is slidably connected with the first fixed plate, and the bottom of the first fixed plate is connected to the telescopic part of the electric push rod. The front and rear parts of the placement plate are both slidably connected with the second fixed plate, and the bottom side of the placement plate is rotatably connected with the first rotating plate. There are three L-shaped connecting rods, an L-shaped connecting rod is connected between the first fixed plate and the first rotating plate, and an L-shaped connecting rod is connected between the second fixed plate and the first rotating plate. The ton bag is located between the first fixed plate and the second fixed plate, and a clamping mechanism is provided at the bottom of the second mounting plate.

[0007] Preferably, the height of the bracket is adjustable.

[0008] Preferably, the weighing mechanism includes a cylinder, a display screen, a first connecting plate, a mounting block and a hook. The cylinders are symmetrically mounted on the first mounting plate via an adapter plate. A display screen is commonly mounted on the front of the cylinders. The telescopic parts of the cylinders are connected to the first connecting plates. Weight sensors are provided on the first connecting plates. The weight sensors are electrically connected to the display screen. The first connecting plate is slidably connected to the second mounting plate. Two mounting blocks are symmetrically connected to the bottom side of the second mounting plate. The bottoms of the mounting blocks are rotatably connected to hooks.

[0009] Preferably, the clamping mechanism includes a mounting rod, a guide rod, a clamping plate and an elastic member. The bottom of the second mounting plate is symmetrically connected to the mounting rod, and the mounting rods are slidably connected to the guide rods. The ends of the two guide rods close to each other are connected to the clamping plate, the feeding pipe is located between the two clamping plates, and the other end of the guide rod is provided with a sleeve, and an elastic member is connected between the clamping plate and the mounting rod.

[0010] Preferably, four clamping plates are provided at the bottom of the second mounting plate.

[0011] Preferably, the lower portion of the feed pipe is provided with an external thread, and the inner side of the clamping plate is provided with an internal thread that can fit with the external thread.

[0012] Preferably, a reinforcement mechanism is also included. The reinforcement mechanism arranged on the bottom side of the first connecting plate includes a second rotating plate, a second connecting plate and a top rod. The bottom side of the first connecting plate is rotatably connected to the second rotating plate, the lower part of the mounting rod is connected to the second connecting plate, the lower part of the second rotating plate is connected to the top rod, the top rod is slidably connected to the second connecting plate, and the top rod can fit with the sleeve.

[0013] Preferably, a lifting and fixing mechanism is also included, and the lifting and fixing mechanism jointly arranged on the first fixing plate and the second fixing plate includes a fixing rod, a clamping ball and a third fixing plate, the first fixing plate and the second fixing plate are both connected to the fixing rod, the clamping ball is slidably connected to the fixing rod, the third fixing plate is slidably connected inside the fixing rod, and at least two clamping grooves are opened at the lower part of the third fixing plate, and the clamping grooves can be connected to the clamping ball.

[0014] Preferably, at least four card slots are provided.

[0015] Preferably, the third fixing plate is deployable.

[0016] The present invention installs an adjusting mechanism and a lifting and fixing mechanism, and the electric push rod will bring the first fixing plate and the second fixing plate into contact with the ton bag and clamp it, so as to prevent the ton bag from shaking during unloading, resulting in inaccurate weighing data. The third fixing plate is moved upward or unfolded. The device can adjust the distance between the first fixing plate and the second fixing plate according to the size and shape of the ton bag, so that the device can fix and adjust different types of ton bags, which greatly improves the adaptability of the device to ton bags. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the blanking mechanism of the present invention.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the first mounting plate, the second mounting plate and the weighing mechanism of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the second mounting plate and the weighing mechanism of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the placing plate, the ton bag and the fixing plate of the present invention.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention.

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the feeding tube, bag opening and clamping mechanism of the present invention.

[0024] Figure 8 It is a three-dimensional structural schematic diagram of the feed tube, the first thread and the clamping mechanism of the present invention.

[0025] Fig. 9 It is a three-dimensional structural schematic diagram of the clamping mechanism and the reinforcement mechanism of the present invention.

[0026] Fig.10 It is a three-dimensional structural schematic diagram of the fixing plate and the lifting and fixing mechanism of the present invention.

[0027] Fig.11 It is a schematic diagram of the three-dimensional structure of the lifting and fixing mechanism of the present invention.

[0028] The marks in the attached drawings are: 1-feeding mechanism, 101-bracket, 102-transfer assembly, 103-placing plate, 104-first mounting plate, 105-feeding hopper, 106-feeding pipe, 1061-external thread, 107-second mounting plate, 2-ton bag, 21-bag opening, 3-weighing mechanism, 31-cylinder, 32-display screen, 33-first connecting plate, 34-mounting block, 35-hook, 4-adjustment mechanism, 41- Electric push rod, 42-first fixed plate, 43-second fixed plate, 44-first rotating plate, 45-L-shaped connecting rod, 5-clamping mechanism, 51-mounting rod, 52-guide rod, 53-clamping plate, 54-elastic member, 55-internal thread, 6-reinforcement mechanism, 61-second rotating plate, 62-second connecting plate, 63-top rod, 7-lifting and fixing mechanism, 71-fixing rod, 72-card ball, 73-third fixed plate, 74-card slot. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Embodiment: A packaging machine for improving the utilization rate of ton bags, such as Figure 1-Figure 10As shown, it includes a feeding mechanism, a ton bag 2, a weighing mechanism 3, an adjusting mechanism 4 and a clamping mechanism 5. The feeding mechanism 1 includes a bracket 101, a transfer assembly 102, a placement plate 103, a first mounting plate 104, a feeding hopper 105, a feeding pipe 106 and a second mounting plate 107. The height of the bracket 101 can be adjusted. The lower part of the bracket 101 is fixedly connected to the transfer assembly 102 by bolts, the right part of the transfer assembly 102 is fixedly connected to the placement plate 103, and the upper part of the bracket 101 is fixedly connected to the first mounting plate 104 by a fixing member. The first mounting plate 104 is provided with a lower hopper 105 in the middle thereof, a placing frame is symmetrically fixedly connected to the bottom side of the first mounting plate 104 by bolts, a second mounting plate 107 is placed on the placing frame, a lowering pipe 106 is provided in the middle of the second mounting plate 107, a feeding port of the lowering pipe 106 is connected to a feeding port of the lower hopper 105, an external thread 1061 is provided at the lower part of the lowering pipe 106, a ton bag 2 is placed on the upper side of the placing plate 103, a bag opening 21 is provided on the ton bag 2, and the bag opening 21 can The first mounting plate 104 and the second mounting plate 107 are provided with a weighing mechanism 3. The placing plate 103 is provided with an adjusting mechanism 4. The adjusting mechanism 4 includes an electric push rod 41, a first fixing plate 42, a second fixing plate 43, a first rotating plate 44 and an L-shaped connecting rod 45. The bottom side of the placing plate 103 is provided with an electric push rod 41 by bolts. The right part of the placing plate 103 is slidably connected with the first fixing plate 42. The bottom of the first fixing plate 42 and the telescopic part of the electric push rod 41 are connected. The front and rear parts of the placement plate 103 are both slidably connected with the second fixed plate 43, and the bottom side of the placement plate 103 is rotatably connected with the first rotating plate 44, the first rotating plate 44 is square, and there are three L-shaped connecting rods. An L-shaped connecting rod 45 is connected between the first fixed plate 42 and the first rotating plate 44, and an L-shaped connecting rod 45 is connected between the second fixed plate 43 and the first rotating plate 44. The ton bag 2 is located between the first fixed plate 42 and the second fixed plate 43, and a clamping mechanism 5 is provided at the bottom of the second mounting plate 107.

[0031] like Figure 1-Figure 3 As shown, the weighing mechanism 3 includes a cylinder 31, a display screen 32, a first connecting plate 33, a mounting block 34 and a hook 35. The cylinder 31 is symmetrically mounted on the first mounting plate 104 via an adapter plate. The display screen 32 is commonly mounted on the front of the cylinder 31. The telescopic part of the cylinder 31 is fixedly connected with the first connecting plate 33. The first connecting plate 33 is provided with a weight sensor, which is electrically connected to the display screen 32. The first connecting plate 33 is slidably connected to the second mounting plate 107 up and down. Two mounting blocks 34 are symmetrically connected to the bottom side of the second mounting plate 107, and the bottom of the mounting block 34 is rotatably connected with a hook 35.

[0032] like Figure 1 and Figure 7-Figure 9As shown, the clamping mechanism 5 includes a mounting rod 51, a guide rod 52, a clamping plate 53 and an elastic member 54. Two mounting rods 51 are symmetrically fixed to the bottom of the second mounting plate 107. The mounting rods 51 are slidably connected with guide rods 52. The ends of the two guide rods 52 close to each other are fixed with clamping plates 53. The clamping plates 53 are semi-arc plates that fit the discharge pipe 106. The discharge pipe 106 is located between the clamping plates 53. The other ends of the guide rods 52 are provided with sleeves. Elastic members 54 are fixed between the clamping plates 53 and the mounting rods 51 through spring seats. The inner sides of the clamping plates 53 are provided with internal threads 55 that can fit with the external threads 1061.

[0033] like Figure 1 and Figure 7 and Fig. 9 As shown, it also includes a reinforcement mechanism 6. The reinforcement mechanism 6 arranged on the bottom side of the first connecting plate 33 includes a second rotating plate 61, a second connecting plate 62 and a top rod 63. The bottom side of the first connecting plate 33 is rotatably connected to the second rotating plate 61, the lower part of the mounting rod 51 is fixedly connected to the second connecting plate 62, and the lower center position of the second rotating plate 61 is fixedly connected to the top rod 63. The top rod 63 is slidably connected to the second connecting plate 62, and the top rod 63 can fit with the sleeve.

[0034] like Figure 1 , Fig.10 and Fig.11 As shown, a lifting and fixing mechanism 7 is also included. The lifting and fixing mechanism 7 jointly arranged on the first fixing plate 42 and the second fixing plate 43 includes a fixing rod 71, a locking ball 72 and a third fixing plate 73. The first fixing plate 42 and the second fixing plate 43 are both connected with the fixing rod 71. The upper part of the fixing rod 71 is slidably connected with the locking ball 72. The inside of the fixing rod 71 is slidably connected with the third fixing plate 73. The third fixing plate 73 can be unfolded. Four locking grooves 74 are opened at the lower part of the third fixing plate 73, and the locking grooves 74 can be connected with the locking ball 72.

[0035] When the device is to be used, the electric push rod 41 is first driven, and the electric push rod 41 will move the first fixed plate 42 to the right. At the same time, the L-shaped connecting rod 45 on the first fixed plate 42 will rotate and rotate with the first rotating plate 44. When the first rotating plate 44 rotates, it will rotate the other two L-shaped connecting rods 45 together. When the other two L-shaped connecting rods 45 rotate, they will move the second fixed plate 43 outward, so that the first fixed plate 42 and the second fixed plate 43 can move at the same time. The ton bag 2 to be used is placed between the placement plate 103 and the second fixed plate 43, and the electric push rod 41 is driven to move the first fixed plate 42 and the second fixed plate 43 to the middle. When it is about to touch the ton bag 2, it stops moving, and the hooks 35 are buckled on the handles of the ton bag 2 in turn, and then the guide rod 52 is pulled outward, and the guide rod 52 will move outward with the clamping block. When the clamping block moves outward, the elastic member 54 is compressed. After all the clamping blocks are moved outward, the bag opening 21 is sleeved on the lower part of the discharge tube 106. At this time, the guide rod 52 is loosened, the elastic member 54 will rebound and restore the clamping block, thereby fixing the bag opening 21 on the discharge tube 106, driving the cylinder 31. The telescopic part of the cylinder 31 will move the first connecting plate 33 upward in the second mounting plate 107. At the same time, the second rotating plate 61 will be pulled to move toward the middle. When the second rotating plate 61 moves, it will move with the push rod 63, thereby sliding the push rod 63 on the second connecting plate 62. After the push rod 63 is engaged with the sleeve, the push rod 63 will move toward the middle with the sleeve. At this time, the external thread 1061 and the internal thread 55 will fit each other, so that the clamping plate 53 can fix the bag opening 21 more stably, preventing the bag opening 21 from falling off and material leakage during discharge.

[0036] When the first connecting plate 33 contacts the upper part of the second mounting plate 107, the first connecting plate 33 will move upward with the second mounting plate 107 and the mounting block 34. At the same time, the mounting block 34 will move upward with the buckle 35, and the buckle 35 will lift the ton bag 2. At this time, pour the material into the lower hopper 105, and the material enters the ton bag 2 through the discharge pipe 106. When the material enters the ton bag 2, the gravity sensor will display the weight of the material in the ton bag 2 in real time through the display screen 32, so that the device can achieve the effect of accurately packaging the material weight.

[0037] When the material fills the bottom of the ton bag 2, the electric push rod 41 is driven again, and the electric push rod 41 will move the first fixing plate 42 and the second fixing plate 43 toward the ton bag 2. When the first fixing plate 42 and the second fixing plate 43 contact and clamp the ton bag 2, the movement of the first fixing plate 42 and the second fixing plate 43 is stopped. This can prevent the ton bag 2 from shaking during unloading, resulting in inaccurate weighing data. When a higher ton bag 2 is to be used for packaging, the height of the bracket 101 is first adjusted according to the height of the ton bag 2, and then the third fixing plate 73 is moved upward. When it moves to a suitable position, the first fixing plate 42 and the second fixing plate 43 are moved upward to the appropriate position. The card slot 74 on the third fixing plate 73 fits with the card ball 72, so that the third fixing plate 73 can be fixed on the fixing rod 71. If the width of the ton bag 2 is large, the third fixing plate 73 can be unfolded to increase the contact area between the third fixing plate 73 and the ton bag 2. This allows the device to fix ton bags 2 of different heights and widths, and the device can adjust the distance between the first fixing plate 42 and the second fixing plate 43 according to the size and shape of the ton bag 2, so that the device can fix and adjust different types of ton bags 2, effectively improving the adaptability of the device to the ton bag 2.

[0038] When the material in the ton bag 2 reaches the specified weight, the material is unloaded, and the cylinder 31 presses down with the first connecting plate 33. The first connecting plate 33 will move downward with the components connected thereto and the second mounting plate 107, thereby moving the ton bag 2 filled with materials downward. After the ton bag 2 falls on the placement plate 103, the hook 35 is removed from the handle of the ton bag 2, and the ton bag 2 is moved to the conveying component 102. The above steps can be repeated for subsequent work. After completing the work, the device cylinder 31 and the electric push rod 41 are closed.

[0039] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, several modifications, improvements and substitutions 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 present invention patent shall be subject to the attached claims.

Claims

1. A packaging machine for improving the utilization rate of ton bags, characterized in that: Included are: A material unloading mechanism (1), wherein the material unloading mechanism (1) comprises: Bracket (101); A transfer assembly (102) is arranged at the lower part of the bracket (101); A placement plate (103) connected to the right portion of the transfer assembly (102); A first mounting plate (104) is connected to the upper part of the bracket (101), a placement rack is symmetrically connected to the bottom side of the first mounting plate (104), and the placement plate (103) is located directly below the first mounting plate (104); A lower hopper (105) is disposed on the first mounting plate (104); The second mounting plate (107) is placed on the two placement racks; A feed pipe (106) is passed through the second mounting plate (107), and a feed inlet of the feed pipe (106) is connected to a feed outlet of the feed hopper (105); A ton bag (2) is placed on the placement plate (103), the ton bag (2) is provided with a bag opening (21) and the bag opening (21) is capable of wrapping the lower part of the discharge pipe (106); A weighing mechanism (3) is disposed on the first mounting plate (104) and the second mounting plate (107); An adjustment mechanism (4) is arranged on the placement plate (103), and the adjustment mechanism (4) comprises: an electric push rod (41) installed on the bottom side of the placement plate (103); A first fixing plate (42) is slidably connected to the right portion of the placement plate (103), and the bottom of the first fixing plate (42) is connected to the telescopic portion of the electric push rod (41); A second fixing plate (43), wherein the second fixing plates (43) are two in number and are symmetrically slidably connected to the front and rear parts of the placement plate (103); A first rotating plate (44) rotatably connected to the bottom side of the placement plate (103); L-shaped connecting rods (45), wherein there are three L-shaped connecting rods (45), one of which is connected between the first fixed plate (42) and the first rotating plate (44), and the other two are respectively connected between the two second fixed plates (43) and the first rotating plate (44); The clamping mechanism (5) is arranged at the bottom of the second mounting plate (107).

2. The packaging machine for improving the utilization rate of ton bags according to claim 1, characterized in that: The height of the bracket (101) is adjustable.

3. The packaging machine for improving the utilization rate of ton bags according to claim 2 is characterized in that: The weighing mechanism (3) comprises: Cylinders (31), there are two cylinders (31), both of which are symmetrically mounted on the first mounting plate (104) via an adapter plate; A display screen (32) is mounted on the front of the cylinder (31); a first connecting plate (33), wherein the first connecting plates (33) are two and are respectively connected to the telescopic parts of the two cylinders (31); a weight sensor is installed on each of the two first connecting plates (33), and the weight sensor is electrically connected to the display screen (32); and the first connecting plate (33) is slidably connected to the second mounting plate (107); Mounting blocks (34), the number of the mounting blocks (34) being four and all connected to the bottom side of the second mounting plate (107); There are four buckle hooks (35), which are rotatably connected to the bottoms of the four mounting blocks (34).

4. The packaging machine for improving the utilization rate of ton bags according to claim 3 is characterized in that: The clamping mechanism (5) comprises: Mounting rods (51), two mounting rods (51) symmetrically connected to the bottom of the second mounting plate (107); Guide rods (52), the guide rods (52) being two in number and respectively connected in a sliding manner to the two mounting rods (51), and the other ends of the guide rods (52) being each provided with a sleeve; Clamping plates (53), wherein there are two clamping plates (53), which are respectively connected to ends of the two guide rods (52) that are close to each other, and the feeding pipe (106) is located between the clamping plates (53); An elastic member (54) is connected between the clamping plate (53) and the mounting rod (51).

5. The packaging machine for improving the utilization rate of ton bags according to claim 4, characterized in that: Four clamping plates (53) are provided at the bottom of the second mounting plate (107).

6. The packaging machine for improving the utilization rate of ton bags according to claim 5, characterized in that: The lower portion of the feed tube (106) is provided with an external thread (1061), and the inner side of each of the clamping plates (53) is provided with an internal thread (55) that can fit with the external thread (1061).

7. The packaging machine for improving the utilization rate of ton bags according to claim 6, characterized in that: Also included is a reinforcement mechanism (6) disposed on the bottom side of the first connecting plate (33) comprising: A second rotating plate (61), wherein the number of the second rotating plates (61) is two and they are rotatably connected to the bottom sides of the two first connecting plates (33) respectively; A second connecting plate (62), wherein the second connecting plates (62) are two and are respectively connected to the lower parts of the two mounting rods (51); A push rod (63), wherein the push rods (63) are two and are respectively connected to the lower part of the rotating plate (61), and the push rods (63) are slidably connected to the second connecting plate (62), and the push rods (63) can fit with the sleeve.

8. The packaging machine for improving the utilization rate of ton bags according to claim 7, characterized in that: Also included is a lifting and fixing mechanism (7) disposed on the first fixing plate (42) and the second fixing plate (43) and comprising: Fixed rods (71), the fixed rods (71) being three in number and respectively connected to the first fixed plate (42) and the two second fixed plates (43); A locking ball (72), wherein the locking balls (72) are two and are respectively slidably connected to the two fixing rods (71); The third fixing plates (73) are three in number and are respectively slidably connected to the two fixing rods (71), and at least two clamping grooves (74) are formed at the bottom of each of the third fixing plates (73), and each of the clamping grooves (74) can be connected to the clamping ball (72).

9. The packaging machine for improving the utilization rate of ton bags according to claim 8, characterized in that: At least four card slots (74) are provided.

10. The packaging machine for improving the utilization rate of ton bags according to claim 9, characterized in that: The third fixing plate (73) can be unfolded.

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