Automatic ton bag unpacking machine

Abstract

The utility model provides a kind of ton bag automatic unpacking machine, belong to unpacking machine technical field, the ton bag automatic unpacking machine includes main support, hoisting mechanism, blanking cylinder and bag breaking mechanism, the hoisting mechanism is located in the main support bottom, the hoisting mechanism is used to hoist ton bag;The blanking cylinder is fixedly connected in the main support, and located below the hoisting mechanism;The bag breaking mechanism is slidably connected in the blanking cylinder along up and down direction, the bag breaking mechanism includes blanking guide cylinder slidably connected with the blanking cylinder, damping block being located in the blanking guide cylinder top, cutting support being fixedly arranged in the damping block top and vibration cylinder being fixedly connected in the cutting support.The ton bag automatic unpacking machine provided by the utility model replaces artificial ton bag handling, reduces labor cost;Bag breaking mechanism realizes the automatic cutting of ton bag, cooperates the vibration of vibration cylinder, can realize the quick cutting of ton bag, especially suitable for lighter material of specific gravity.

Description

Technical Field

[0001] This utility model belongs to the field of unpacking machine technology, specifically relating to an automatic unpacking machine for ton bags. Background Technology

[0002] A ton bag is a flexible, medium-sized bulk container that is convenient for transporting large quantities of bulk powdery materials. It features large volume, light weight, and easy loading and unloading.

[0003] However, in existing technologies, unpacking ton bags requires manual assistance to achieve both unpacking and material feeding. After unpacking, the material inside the ton bag falls, allowing for feeding. Specifically, this involves manual assistance with loading and unloading the bags, two cuts, two unties, and two adjustments (cutting the outer bottom rope, untying the outer tie rope, cutting the inner bag seal, adjusting the inner bag outlet, untying the inner bag tie rope, and adjusting the inner bag discharge channel). This manual unpacking process is cumbersome and affects the feeding efficiency of the ton bags. During unpacking, workers need to be in close contact with the material, which, if the material is dust or toxic, can easily harm their health. Utility Model Content

[0004] This utility model provides an automatic unpacking machine for one-ton bags, which aims to solve the technical problems of high manual intervention in the unpacking process of existing one-ton bags, which affects the feeding efficiency of the one-ton bags, and the fact that close contact with materials by operators can easily affect their health.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide an automatic unpacking machine for ton bags, comprising: Main support; A hoisting mechanism is located at the bottom of the main support frame, and the hoisting mechanism is used to hoist ton bags; The unloading cylinder is fixed to the main support and located below the hoisting mechanism; The bag breaking mechanism is slidably connected to the unloading cylinder in the up-down direction. The bag breaking mechanism includes a discharge guide cylinder slidably connected to the unloading cylinder, a shock-absorbing block disposed on the top of the discharge guide cylinder, a cutting bracket fixed on the top of the shock-absorbing block, and a vibration cylinder fixed to the cutting bracket.

[0006] In one possible implementation, the hoisting mechanism includes: The track is fixed to the main support and extends horizontally. An electric hoist trolley for traveling on the track, the electric hoist trolley having a first hook; A lifting bracket is attached to the first hook and is used for lifting ton bags.

[0007] In one possible implementation, the hoisting support includes: The frame has a second hook at the top that connects to the first hook; Multiple hanging rings are provided on the outer periphery of the frame body. Each hanging ring has a hanging inlet, and the side wall of the hanging ring located below the hanging inlet protrudes inward to form a blocking part.

[0008] In one possible implementation, the automatic unpacking machine for ton bags further includes: Several vacuum suction cups are located on the outer periphery of the top of the unloading cylinder.

[0009] In one possible implementation, the main support is provided with a limit switch that is communicatively connected to the vacuum suction cup. The limit switch is used to identify the position of the ton bag and control the vacuum suction cup to open or close.

[0010] In one possible implementation, the automatic unpacking machine for ton bags further includes: A tapping mechanism is located on the outer periphery of the vacuum suction cup. The tapping mechanism includes a tapping plate, which is used to tap the bottom of the ton bag.

[0011] In one possible implementation, the tapping mechanism includes a plurality of tapping modules distributed around the outer periphery of the vacuum suction cup, each tapping module comprising: The striking cylinder is fixed to the main support; The clapping plate is rotatably connected to the main support and located on the outer periphery of the vacuum suction cup. The clapping plate is rotatably connected to the piston rod of the clapping cylinder. The slapping cylinder is used to drive the slapping plate to rotate, thereby slapping the ton bag.

[0012] In one possible implementation, the unloading cylinder is provided with a mounting frame, and a lifting cylinder is fixedly mounted on the mounting frame. The piston rod of the lifting cylinder is fixedly connected to the unloading guide cylinder.

[0013] In one possible implementation, the outer periphery of the discharge guide cylinder is provided with a wear-resistant plate, which contacts the inner wall of the discharge cylinder.

[0014] In one possible implementation, a slide gate valve is provided at the bottom of the discharge cylinder.

[0015] Compared with the prior art, the solution shown in this application embodiment uses a hoisting mechanism to lift the ton bag during operation. The lifted ton bag contacts the top of the unloading cylinder, and then the bag-breaking mechanism moves upward until it cuts the ton bag. The material inside the ton bag flows into the unloading cylinder and is guided to a designated position. The hoisting mechanism in this embodiment can lift the ton bag, keeping it above the unloading cylinder, thus replacing manual handling and reducing labor costs. The bag-breaking mechanism moves upward after the ton bag reaches the cutting position. When the cutter on the bag-breaking mechanism moves upward, it contacts the ton bag, achieving automatic cutting. Combined with the vibration of the vibrating cylinder, it can quickly cut the ton bag, which is especially suitable for materials with a specific gravity. It is more efficient than manual cutting and avoids the health hazards of close contact with the ton bag. After the ton bag is cut, the vibrating cylinder can be switched to intermittent start mode, which can make the cutting support shake the ton bag, helping the material inside the ton bag to fall quickly and avoiding bridging. After the ton bag is cut, the material inside first flows through the discharge guide cylinder, and then enters the unloading cylinder under the guidance of the discharge guide cylinder. The unloading cylinder then guides the material to the designated position, which can ensure accurate feeding of materials and avoid material leakage and waste. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of the automatic unpacking machine for ton bags provided in an embodiment of this utility model; Figure 2 This is a schematic diagram of the main structure of the lower half of the automatic unpacking machine for ton bags provided in an embodiment of the present utility model; Figure 3 For along Figure 2 Schematic diagram of the cross-sectional structure along line AA; Figure 4 This is a three-dimensional structural diagram of the bag-breaking mechanism used in an embodiment of the present utility model; Figure 5 This is a three-dimensional structural diagram of the hanging ring used in an embodiment of this utility model.

[0017] 10-Main support; 20-Lifting mechanism; 21-Rail; 22-Electric hoist trolley; 221-First hook; 23-Lifting bracket; 231-Frame; 232-Hanging ring; 233-Blocking part; 30-Unloading cylinder; 31-Mounting bracket; 32-Lifting cylinder; 33-Slide valve; 40-Bag breaking mechanism; 41-Discharge guide cylinder; 42-Shock damping block; 43-Cutting bracket; 431-Base; 432-Support rod; 433-Reinforcing frame; 44-Vibration cylinder; 45-Wear-resistant plate; 46-Cutter; 50-Vacuum suction cup; 60 - Striking mechanism; 61 - Striking plate; 62 - Striking cylinder. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] Please refer to the following: Figures 1 to 5 The automatic unpacking machine for ton bags provided by this utility model will now be described. The automatic unpacking machine for ton bags includes a main support 10, a hoisting mechanism 20, a discharge cylinder 30, and a bag breaking mechanism 40. The hoisting mechanism 20 is located at the bottom of the main support 10 and is used to lift the ton bags. The discharge cylinder 30 is fixedly connected to the main support 10 and is located below the hoisting mechanism 20. The bag breaking mechanism 40 is slidably connected in the vertical direction inside the discharge cylinder 30. The bag breaking mechanism 40 includes a discharge guide cylinder 41 slidably connected to the discharge cylinder 30, a shock absorber block 42 located at the top of the discharge guide cylinder 41, a cutting bracket 43 fixedly located at the top of the shock absorber block 42, and a vibration cylinder 44 fixedly connected to the cutting bracket 43.

[0020] Compared with the prior art, the automatic unpacking machine for ton bags provided in this embodiment uses a hoisting mechanism 20 to lift the ton bag during operation. The lifted ton bag contacts the top of the unloading cylinder 30, and then the bag breaking mechanism 40 moves upward until it cuts the ton bag. The material inside the ton bag flows into the unloading cylinder 30 and is guided to a designated position. The hoisting mechanism 20 in this embodiment can lift the ton bag, keeping it above the unloading cylinder 30, replacing manual handling and reducing labor costs. The bag-breaking mechanism 40 moves upward after the ton bag reaches the cutting position. When the cutter 46 on the bag-breaking mechanism 40 moves upward, it contacts the ton bag, realizing automatic cutting of the ton bag. In conjunction with the vibration of the vibrating cylinder 44, it can quickly cut the ton bag, which is especially suitable for materials with a relatively light weight. It is more efficient than manual cutting and also avoids the health hazards of close contact between personnel and the ton bag. After the ton bag is cut, the vibrating cylinder 44 can be switched to intermittent start mode, so that the cutting bracket 43 shakes the ton bag, which helps the material inside the ton bag to fall quickly and avoids bridging. After the ton bag is cut, the material inside first flows through the discharge guide cylinder 41, and then enters the unloading cylinder 30 under the guidance of the discharge guide cylinder 41. The unloading cylinder 30 then guides the material to the designated position, which can ensure accurate feeding of materials and avoid leakage and waste.

[0021] In some embodiments, a specific implementation of the hoisting mechanism 20 described above may employ, as follows: Figure 1 The structure shown. See also Figure 1The hoisting mechanism 20 includes a track 21, an electric hoist trolley 22, and a hoisting bracket 23. The track 21 is fixed to the main support 10 and extends horizontally. The electric hoist trolley 22 is used to travel on the track 21 and has a first hook 221. The hoisting bracket 23 is hooked to the first hook 221 and is used to hoist ton bags.

[0022] In practical use, the ton bag is first placed next to the main support 10. The electric hoist trolley 22 moves to the top of the ton bag. The first hook 221 on the electric hoist trolley 22 drives the lifting bracket 23 to fall, and hangs the hanging rope on the ton bag on the lifting bracket 23. Then the electric hoist trolley 22 is started, and the electric hoist trolley 22 lifts the ton bag and moves it along the track 21 to the top and bottom of the unloading cylinder 30 of the ton bag lifting device until it contacts the top of the unloading cylinder 30.

[0023] In the prior art, the electric hoist carriage 22 includes a motor-driven traveling wheel and a chain that can be raised and lowered. The first hook 221 is fixed to the bottom of the chain. The traveling wheel can be driven to rotate by the motor to move back and forth on the track 21. The chain can be raised and lowered by another motor.

[0024] This embodiment of the application realizes efficient hoisting of ton bags, hoisting the ton bag located next to the main support 10 to the top of the unloading cylinder 30 without manual pushing and adjusting the position of the ton bag; the first hook 221 on the electric hoist trolley 22 is connected to the hoisting bracket 23, which facilitates the disassembly of the hoisting bracket 23, and the size of the hoisting bracket 23 can be changed according to the specific volume of the ton bag to adapt to different hoisting needs.

[0025] Optionally, the electric hoist trolley 22 can be configured with a rated load capacity of 2 tons.

[0026] In some embodiments, a specific implementation of the above-described hoisting bracket 23 may employ the following method: Figure 1 and Figure 5 The structure shown. See also Figure 1 and Figure 5 The lifting support 23 includes a frame 231 and multiple hanging rings 232. The top of the frame 231 is provided with a second hook that engages with the first hook 221. The multiple hanging rings 232 are located on the outer periphery of the frame 231. Each hanging ring 232 has an inlet, and the side wall of the hanging ring 232 below the inlet protrudes inward to form a blocking part 233. The number of ropes on the ton bag is the same as the number of hanging rings 232. When the rope is hooked into the hanging ring 232, it is inserted into the hanging ring 232 through the inlet. During the lifting process of the ton bag by the lifting support 23, the blocking part 233 near the inlet prevents the rope from slipping out of the inlet when it rises, thus improving the safety of the ton bag lifting by the lifting support 23.

[0027] The top edge of the blocking part 233 extends at an angle near the hanging inlet, making the hanging inlet a conical flare, which facilitates the hanging of the rope and the assembly process of the ton bag and the lifting bracket 23.

[0028] In some embodiments, an improved implementation of the above-described automatic ton bag unpacking machine can be adopted as follows: Figures 1 to 3 The structure shown. See also Figures 1 to 3 The automatic ton bag unpacking machine also includes several vacuum suction cups 50, which are located on the outer periphery of the top of the unloading cylinder 30. After the ton bag contacts the top of the unloading cylinder 30, the vacuum suction cups 50 are activated. The vacuum suction cups 50 can fix the bottom of the ton bag, preventing the ton bag from shaking and causing material leakage during unloading. In addition, the vacuum suction cups 50 can also ensure the sealing between the unloading cylinder 30 and the ton bag, sucking away any leaked material or dust. The material collected by the vacuum suction cups 50 can be reused, avoiding material waste and reducing losses.

[0029] Specifically, the top of the vacuum suction cup 50 is equipped with a sponge ring. The sponge ring is made of elastic sponge material and is set around the suction cup adsorption section. The sponge ring has good elasticity and deformation ability, which can closely fit the fine uneven structure of the ton bag surface, fill gaps, block air leakage channels, ensure that a reliable sealed space is formed between the suction cup and the ton bag, maintain stable negative pressure, ensure adsorption force, and prevent the ton bag from shifting or falling off during the unpacking process.

[0030] In some embodiments, an improved implementation of the above-mentioned automatic ton bag unpacking machine can adopt the following structure. (Not shown in the figure), the main support 10 is equipped with a limit switch communicatively connected to the vacuum suction cup 50. The limit switch is used to identify the position of the ton bag and control the vacuum suction cup 50 to open or close. The limit switch can be a mechanical switch or a photoelectric switch. The mechanical switch can be a button located on the top of the vacuum suction cup 50, which is the control button for the air pump connected to the vacuum suction cup 50. When the ton bag contacts the vacuum suction cup 50, the button is pressed, and the vacuum suction cup 50 starts to adsorb the ton bag, thus fixing it. After the material has fallen completely, the button is no longer pressed, the button rebounds, and the vacuum suction cup 50 closes. The photoelectric switch can be a photoelectric sensor. When the photoelectric sensor detects the ton bag (based on whether the emitted light is blocked), it converts the information into an electrical signal and transmits it to the controller. The controller sends an opening signal to the air pump in the vacuum suction cup 50, and the vacuum suction cup 50 opens to adsorb the ton bag, thus fixing it. When the ton bag is lifted away, the photoelectric sensor detects that the ton bag has left, and the controller controls the vacuum suction cup 50 to close using the same principle.

[0031] In this embodiment, the limit switch is connected to the vacuum suction cup 50 to realize the automatic opening and closing of the vacuum suction cup 50, avoiding the delay problem of manually observing the position of the ton bag and manually operating the suction cup to start and stop, improving the equipment operating efficiency, increasing the degree of equipment automation, and reducing manual intervention.

[0032] In some embodiments, an improved implementation of the above-described automatic ton bag unpacking machine can be adopted as follows: Figures 1 to 3 The structure shown. See also Figures 1 to 3 The automatic ton bag unpacking machine also includes a tapping mechanism 60, which is located around the vacuum suction cup 50. The tapping mechanism 60 includes a tapping plate 61, which is used to tap the bottom of the ton bag. When the ton bag is broken, some material may be unable to fall naturally due to adsorption on the inner wall of the ton bag or clumping. The tapping action of the tapping plate 61 can generate vibration, causing the residual material to fall off and fall into the unloading cylinder 30, avoiding manual tapping of the ton bag, reducing labor input, reducing material residue rate, and improving resource utilization.

[0033] In some embodiments, a specific implementation of the above-described tapping mechanism 60 may employ, as follows: Figures 1 to 3 The structure shown. See also Figures 1 to 3 The tapping mechanism 60 includes multiple tapping modules distributed around the outer periphery of the vacuum suction cup 50. Each tapping module includes a tapping cylinder 62 and the aforementioned tapping plate 61. The tapping cylinder 62 is fixed to the main support 10; the tapping plate 61 is rotatably connected to the main support 10 and located around the outer periphery of the vacuum suction cup 50. The tapping plate 61 is rotatably connected to the piston rod of the tapping cylinder 62. The tapping cylinder 62 is used to drive the tapping plate 61 to rotate, thereby tapping the ton bag. The tapping cylinder 62 is fixed to the main support 10 to provide stable power; the tapping plate 61 is rotatably connected to the main support 10 and rotatably connected to the piston rod of the tapping cylinder 62. When the piston rod of the tapping cylinder 62 extends or retracts, it can drive the tapping plate 61 to rotate around the rotation axis, thereby achieving periodic tapping of the bottom of the ton bag. The tapping force and frequency can be adjusted through cylinder parameters to adapt to the unloading requirements of different materials.

[0034] It should be noted that when there are two or more tapping modules, multiple tappers 61 can tap simultaneously or intermittently during operation, which can be set according to requirements.

[0035] In this embodiment, the tapping cylinder 62 is located on the outer periphery of the unloading cylinder 30 and at the bottom of the tapping plate 61. The top of the tapping cylinder 62 is inclined close to the unloading cylinder 30. As a modified embodiment, the tapping cylinder 62 can also be set horizontally, and the tapping plate 61 can be fixedly installed on the tapping cylinder 62. The plate surface of the tapping plate 61 is perpendicular to the piston rod of the tapping cylinder 62 to tap the ton bag.

[0036] In some embodiments, an improved implementation of the above-described automatic ton bag unpacking machine can be adopted as follows: Figure 3The structure shown. See also Figure 3 The unloading cylinder 30 is equipped with a mounting frame 31, on which a lifting cylinder 32 is fixed. The piston rod of the lifting cylinder 32 is fixedly connected to the discharge guide cylinder 41. The mounting frame 31 inside the unloading cylinder 30 fixes the lifting cylinder 32, and the piston rod of the lifting cylinder 32 is fixedly connected to the discharge guide cylinder 41. By controlling the extension and retraction of the piston rod of the lifting cylinder 32, the discharge guide cylinder 41 and the entire bag breaking mechanism 40 can be driven to slide up and down along the unloading cylinder 30, replacing the manual operation of pushing the bag breaking mechanism 40 to lift and lower, and realizing the automatic adjustment of the height of the bag breaking mechanism 40.

[0037] In some embodiments, an improved implementation of the above-described material guide cylinder 41 can adopt the following... Figure 4 The structure shown. See also Figure 4 The outer periphery of the discharge guide cylinder 41 is provided with a wear-resistant plate 45, which contacts the inner wall of the discharge cylinder 30. Since the discharge guide cylinder 41 needs to move up and down frequently within the discharge cylinder 30, the wear-resistant plate 45 reduces frictional wear between the bag-breaking mechanism 40 and the discharge cylinder 30, extending the service life of the equipment. Because the wear-resistant plate 45 contacts the inner wall of the discharge cylinder 30, it prevents swaying during up and down movement caused by gaps between the discharge guide cylinder 41 and the inner wall of the discharge cylinder 30, improving the stability of the discharge guide cylinder 41 and ensuring smooth up and down sliding.

[0038] In some embodiments, an improved implementation of the above-described unloading cylinder 30 may employ, as follows: Figures 1 to 3 The structure shown. See also Figures 1 to 3 The bottom of the unloading cylinder 30 is equipped with a slide gate valve 33. The slide gate valve 33 at the bottom of the unloading cylinder 30 can control whether the material in the unloading cylinder 30 is discharged by opening and closing the valve; by adjusting the opening degree of the slide gate valve 33, the material discharge speed can be controlled to meet the material feeding requirements of subsequent equipment (such as conveyor belts and storage tanks).

[0039] In the prior art, the slide gate valve 33 is driven by a cylinder.

[0040] In some embodiments, a specific implementation of the cutting bracket 43 described above can be as follows: Figure 4 The structure shown. See also Figure 4 The cutting bracket 43 includes a base 431 and multiple support rods 432. A material discharge port is formed in the middle of the base 431. The bottom end of each support rod 432 is fixed to a different position on the base 431. The top ends of the multiple support rods 432 are connected together. A cutting blade 46 is installed on each support rod 432.

[0041] Optionally, the cutter 46 can be connected to the support rod 432 using a threaded connector.

[0042] To improve the structural stability and service life of the cutting bracket 43, see [link / reference]. Figure 4 The cutting bracket 43 also includes a reinforcing frame 433 connected between multiple support rods 432. Multiple reinforcing frames 433 are spaced apart in the vertical direction, and the vibration cylinder 44 is installed on one of the reinforcing frames 433.

[0043] Optionally, the shock absorber 42 can be a rubber block and can be detachably connected to the bottom of the base 431 and the bottom of the discharge guide cylinder 41 via threaded connectors; or the shock absorber 42 can be a spring.

[0044] In this embodiment, multiple cylinders, vacuum suction cups 50, and electric hoist carriages 22 are involved. The control switches of these structures can all be connected to a controller (such as a PLC control system) for unified control. This control process is a conventional technical means and will not be described in detail here.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic unpacking machine for ton bags, characterized in that, include: Main support; A hoisting mechanism is located at the bottom of the main support, and the hoisting mechanism is used to hoist ton bags; The unloading cylinder is fixed to the main support and located below the hoisting mechanism; The bag breaking mechanism is slidably connected to the unloading cylinder in the up-down direction. The bag breaking mechanism includes a discharge guide cylinder slidably connected to the unloading cylinder, a shock-absorbing block disposed on the top of the discharge guide cylinder, a cutting bracket fixed on the top of the shock-absorbing block, and a vibration cylinder fixed to the cutting bracket.

2. The automatic unpacking machine for ton bags as described in claim 1, characterized in that, The hoisting mechanism includes: The track is fixed to the main support and extends horizontally. An electric hoist trolley for traveling on the track, the electric hoist trolley having a first hook; A lifting bracket is attached to the first hook and is used for lifting ton bags.

3. The automatic unpacking machine for ton bags as described in claim 2, characterized in that, The hoisting support includes: The frame has a second hook at the top that connects to the first hook; Multiple hanging rings are provided on the outer periphery of the frame body. Each hanging ring has a hanging inlet, and the side wall of the hanging ring located below the hanging inlet protrudes inward to form a blocking part.

4. The automatic unpacking machine for ton bags as described in claim 1, characterized in that, The automatic unpacking machine for ton bags also includes: Several vacuum suction cups are located on the outer periphery of the top of the unloading cylinder.

5. The automatic unpacking machine for ton bags as described in claim 4, characterized in that, The main support is equipped with a limit switch that is communicatively connected to the vacuum suction cup. The limit switch is used to identify the position of the ton bag and control the vacuum suction cup to open or close.

6. The automatic unpacking machine for ton bags as described in claim 4, characterized in that, The automatic unpacking machine for ton bags also includes: A tapping mechanism is located on the outer periphery of the vacuum suction cup. The tapping mechanism includes a tapping plate, which is used to tap the bottom of the ton bag.

7. The automatic unpacking machine for ton bags as described in claim 6, characterized in that, The tapping mechanism includes multiple tapping modules distributed around the outer periphery of the vacuum suction cup, each tapping module comprising: The striking cylinder is fixed to the main support; The clapping plate is rotatably connected to the main support and located on the outer periphery of the vacuum suction cup. The clapping plate is rotatably connected to the piston rod of the clapping cylinder. The slapping cylinder is used to drive the slapping plate to rotate, thereby slapping the ton bag.

8. The automatic unpacking machine for ton bags as described in claim 1, characterized in that, The unloading cylinder is equipped with a mounting frame, and a lifting cylinder is fixedly mounted on the mounting frame. The piston rod of the lifting cylinder is fixedly connected to the unloading guide cylinder.

9. The automatic unpacking machine for ton bags as described in claim 1, characterized in that, The outer periphery of the discharge guide cylinder is provided with a wear-resistant plate, which is in contact with the inner wall of the discharge cylinder.

10. The automatic unpacking machine for ton bags as described in claim 1, characterized in that, The bottom of the unloading cylinder is equipped with a slide valve.

Images