Ton bag unpacking machine

Abstract

The utility model discloses a ton bag unpacking machine which comprises a machine frame, a shell connected with the machine frame and provided with an unpacking inner cavity, a cutting assembly arranged in the unpacking inner cavity and used for cutting ton bags, and a driving mechanism connected with the cutting assembly and used for driving the cutting assembly to move in a reciprocating mode. A working opening which is communicated with the unpacking inner cavity and can allow the ton bag to enter / exit is formed in the side wall of the shell, a door body is hinged to the working opening and used for controlling the working opening to be opened or closed, a material guiding opening is formed in the lower end of the shell, and after the ton bag is cut by the cutting assembly, materials in the ton bag are guided out of the shell through the material guiding opening. And then the driving mechanism drives the cutting assembly to automatically carry out unpacking operation, in the whole unpacking process, the automation degree is high, the labor intensity of processing personnel is reduced, the unpacking operation is completed in the shell, and the situation that dust flies to pollute the environment or cause dust damage to the processing personnel is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundry auxiliary equipment, and particularly relates to a ton bag unpacking machine. Background Art

[0002] Steel, iron and most non-ferrous alloy castings can be obtained by sand casting method. Therefore, molding sand is one of the essential materials required in the casting processing. Currently, molding sand is usually packaged in ton bags. A ton bag is a flexible bulk bag widely used in the logistics transportation or packaging industry. It is necessary to perform unpacking operation on the ton bag to facilitate the use of the molding sand inside the bag.

[0003] Traditional unpacking operations usually rely on manual operation by workers, which results in a large physical labor intensity for the processing personnel and low unpacking efficiency. Moreover, the dust is flying at the unpacking site, polluting the surrounding working environment, and it is also easy for the staff to inhale dust, causing harm to the body. Content of the Utility Model

[0004] Aiming at the technical problems existing in the prior art that manual unpacking is inefficient, prone to dust flying, polluting the on-site environment, and the flying dust will also cause physical harm to the unpacking personnel, the utility model provides a ton bag unpacking machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A ton bag unpacking machine includes a frame, a housing connected to the frame and having an unpacking inner cavity, a cutting assembly disposed in the unpacking inner cavity for cutting the ton bag, and a driving mechanism connected to the cutting assembly for driving the cutting assembly to reciprocate. A working port communicating with the unpacking inner cavity and allowing the ton bag to enter / exit is provided on the side wall of the housing. A door body is hinged to the working port for controlling the opening or closing of the working port. The lower end of the housing has a material guiding port. After the cutting assembly cuts the ton bag, the materials in the ton bag are guided to the outside of the housing through the material guiding port.

[0007] Furthermore, a support frame distributed in the unpacking inner cavity and located above the material guiding port is provided at the upper part of the frame. The support frame includes a side frame connected to the frame and enclosing to form, a main frame disposed inside the hollow side frame, and a plurality of support ribs connecting the main frame and the side frame;

[0008] The main frame includes a first frame body with two ends respectively connected to the side wall of the side frame, and two second frame bodies respectively connected to both ends of the first frame body. One end of the second frame body is connected to the side frame and the other opposite end is connected to the outer wall of the first frame body. In the top-down orthographic projection plane, the first frame body and the second frame body are in a cross-shaped structure;

[0009] After the first frame body and the second frame body are connected, the internal space of the side frame can be divided into four to form independent first, second, third, and fourth spaces. If the support ribs are horizontally and vertically distributed in the corresponding first, second, third, and fourth spaces.

[0010] Furthermore, a first moving channel is arranged on the first frame body along the length direction of the first frame body and can vertically penetrate the first frame body; second moving channels are arranged on all the second frame bodies along the length direction of the second frame bodies and can vertically penetrate the second frame bodies. The cutting assembly can reciprocate in the first moving channel or the second moving channel to cut the ton bags.

[0011] Furthermore, the cutting assembly includes two cutting knives that can move along the first moving channel, and two cutting knives that move along the corresponding second moving channels respectively. The cutting edges of all the cutting knives face the top end of the unpacking cavity, and each cutting knife is respectively connected to a driving mechanism.

[0012] Furthermore, several of the driving mechanisms all include a driving motor arranged outside the housing, a screw rod connected to the output end of the driving motor and capable of extending into the first moving channel or the second moving channel, and a moving sleeve screwed on the screw rod. The bottom end of the cutting knife is fixedly connected to the corresponding moving sleeve, and sliding grooves for sliding connection are arranged on the side walls of the first moving channel and the second moving channel at positions corresponding to the moving sleeve.

[0013] Furthermore, the housing includes a top panel, a first equal-section segment, a variable-section hopper, and a second equal-section segment that are connected in sequence from top to bottom. The first equal-section segment includes several first shells, and several of the first shells and the door body can enclose to form an equal-section structure; the variable-section hopper is formed by enclosing several second shells to form an open structure. The first end with the largest cross-sectional area in the open variable-section hopper is fixedly connected to the bottom end of the first shell, and the second end with the smallest cross-sectional area is fixedly connected to the second equal-section segment; the second equal-section segment is formed by enclosing several third shells, and the cross-sectional area of the second equal-section segment is smaller than the cross-sectional area of the first end of the variable-section hopper. The lower end port of the second equal-section segment is defined as the material guiding port.

[0014] Furthermore, a first through hole vertically penetrating the top panel is arranged on the top panel, and a second through hole longitudinally penetrating the door body is arranged on the door body. The first through hole and the second through hole communicate to form an L-shaped avoidance hole.

[0015] Furthermore, the door body is provided with a transparent area, and a holding handle is also arranged on the door body.

[0016] Furthermore, the frame includes a number of support feet arranged at intervals, a number of support bars connecting the support feet in sequence, and a number of bottom pads respectively connected to the bottoms of the support feet. A number of reinforcement holes vertically penetrating the bottom pads are formed on each bottom pad.

[0017] To sum up, the beneficial effects of the present utility model are as follows: First, by using an electric hoist at the processing site, the ton bag is hoisted into the unpacking cavity. After starting the driving motor, the screw rotates to drive the moving sleeve to reciprocate, and the cutting knife connected to the moving sleeve performs horizontal and vertical cutting under the ton bag. The molding sand in the ton bag falls on the support frame due to gravity and then enters the variable cross-section hopper and is discharged to the outside of the housing from the material guiding port. The unpacking is convenient and fast, with a high degree of automation. Compared with manual unpacking, it reduces the labor intensity of the processing personnel and improves the work efficiency. In addition, the unpacking is completed inside the housing, avoiding environmental pollution caused by a large amount of dust flying or the situation of dust harming the processing personnel. Second, in the top view orthographic projection plane, the support frame is actually a grid structure with horizontal and vertical intersections, which not only facilitates sand leakage but also improves the support strength of the frame. Moreover, after the molding sand falls on the support frame due to gravity, the first frame body, the second frame body, and a number of support ribs can help cut the agglomerated molding sand, facilitating the molding sand to enter the variable cross-section hopper as smoothly as possible. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of a ton bag unpacking machine provided by the present utility model.

[0019] Figure 2 is Figure 1 the vertical sectional view of

[0020] Figure 3 is a three-dimensional structural diagram of the support frame in the present utility model.

[0021] In the figure, 100 - frame, 110 - support feet, 120 - support bars, 130 - bottom pads, 131 - reinforcement holes, 140 - door body, 141 - second through hole, 200 - housing, 210 - unpacking cavity, 220 - top panel, 221 - first through hole, 230 - first equal cross-section segment, 240 - variable cross-section hopper, 250 - second equal cross-section segment, 300 - cutting knife, 400 - driving mechanism, 410 - driving motor, 420 - screw, 430 - moving sleeve, 500 - side frame, 600 - main frame, 610 - first frame body, 620 - second frame body, 700 - support ribs. Detailed Embodiments

[0022] The present utility model will be further elaborated below with reference to specific drawings.

[0023] Please refer toFigure 1 and Figure 2 , the utility model provides a ton bag unpacking machine, which comprises a frame 100, a housing 200 connected to the frame 100 and having an unpacking inner cavity 210, a cutting assembly arranged in the unpacking inner cavity 210 for cutting the ton bag, and a driving mechanism 400 connected to the cutting assembly for driving the cutting assembly to reciprocate and work. A working port communicating with the unpacking inner cavity 210 and allowing the ton bag to enter / exit is arranged on the side wall of the housing 200, and a door body 140 is hinged to the working port for controlling the opening or closing of the working port. The lower end of the housing 200 has a material guiding port. After the cutting assembly cuts open the ton bag, the materials in the ton bag are guided to the outside of the housing 200 through the material guiding port. When the door body 140 is opened and the working port is exposed, the ton bag is hoisted by an electric hoist and enters the housing 200 from the working port. The ton bag is located above the cutting assembly. The driving mechanism 400 is started, and the cutting assembly reciprocates below the ton bag to cut the ton bag. Due to the action of gravity, the molding sand in the ton bag will fall downward to the position of the material guiding port and be discharged to the outside of the housing 200 through the material guiding port. A conveyor belt can be arranged below the material guiding port, and the molding sand in the ton bag can be directly discharged onto the conveyor belt and conveyed to the required position for processing. When using this unpacking machine for unpacking operations, the process of unpacking the ton bag and guiding the materials to the outside is carried out inside the housing 200, which avoids a large amount of dust flying during the process of unpacking the ton bag, reduces the pollution to the processing environment, and reduces the harm of dust to the staff. First, the ton bag is hoisted by an electric hoist, and then the driving mechanism 400 drives the cutting assembly to automatically carry out unpacking operations. During the whole unpacking process, the degree of automation is high, which can reduce the labor intensity of processing personnel, save time and effort, and improve the unpacking efficiency.

[0024] A support frame distributed in the unpacking inner cavity 210 and located above the material guiding port is arranged at the upper part of the frame 100. Please refer to Figure 3, the support frame includes a side frame 500 connected to the frame 100 and enclosing to form, a main frame 600 disposed inside the hollow side frame 500, and a number of support ribs 700 connecting the main frame 600 and the side frame 500. The main frame 600 includes a first frame body 610 with both ends respectively connected to the side wall of the side frame 500, and two second frame bodies 620 respectively connected to both ends of the first frame body 610. One end of the second frame body 620 is connected to the side frame 500 and the other opposite end is connected to the outer wall of the first frame body 610. In the top-down orthographic projection plane, the first frame body 610 and the second frame body 620 are in a cross-shaped structure. After the first frame body 610 and the second frame body 620 are connected, the internal space of the side frame 500 can be divided into four to form independent first, second, third, and fourth spaces. The support ribs 700 are horizontally and vertically distributed in the corresponding first, second, third, and fourth spaces. Such a support frame is actually a grid-like structure, distributed above the feed opening. When the ton bag is cut open, the molding sand drops and impacts on the support frame, and the grid-like support frame can play a role in cutting the agglomerated molding sand, facilitating the molding sand to smoothly enter the feed opening. Moreover, after such a support frame is connected to the frame 100, it can increase the support strength of the unpacking machine.

[0025] The frame 100 includes a number of support feet 110 arranged at intervals, a number of support bars 120 connecting the support feet 110 in sequence, and a number of bottom pads 130 respectively connected to the bottoms of the support feet 110. A number of reinforcing holes 131 vertically penetrating the bottom pads 130 are provided on each bottom pad 130. After the support feet 110 and the support bars 120 are connected, the overall support strength of the unpacking machine is further enhanced. The support feet 110, the support bars 120, and the support ribs 700 are preferably made of steel. When the unpacking machine is arranged at the production site, in order to further reinforce the unpacking machine, connection holes matching the reinforcing holes 131 can be provided on the ground. By installing bolts in the connection holes and the reinforcing holes 131, the unpacking machine can be more firmly fixed at the casting site, and even when unpacking large ton bags, it will not easily shift.

[0026] The first frame 610 is provided with a first moving channel arranged along the length direction of the first frame 610 and capable of vertically penetrating the first frame 610. All second frames 620 are provided with a second moving channel arranged along the length direction of the second frame 620 and capable of vertically penetrating the second frame 620, and the cutting assembly can reciprocate in the first moving channel or the second moving channel to cut the ton bag. Since the first frame 610 and the second frame 620 are arranged in a cross shape, after the corresponding moving channels are opened, the first moving channel and the second moving channel are also in a cross shape. Looking at the front projection plane, the cutting assembly installed therein can perform horizontal cutting and vertical cutting under the ton bag, making it easier to cut the ton bag thoroughly and convenient to quickly discharge the molding sand.

[0027] The cutting assembly includes two cutting knives 300 that can move along the first moving channel, and two cutting knives 300 that move along the corresponding disc moving channels. The blades of all the cutting knives 300 face the top of the unpacking inner cavity 210, and each of the cutting knives 300 is connected to a driving mechanism 400 in a one-to-one correspondence. After the driving mechanism 400 is started, the driving mechanism 400 drives the cutting knives 300 to move back and forth horizontally and vertically, repeatedly cutting the ton bag under the ton bag, thereby realizing convenient and automated unpacking and reducing the workload of the processing personnel.

[0028] The plurality of driving mechanisms 400 each include a driving motor 410 disposed outside the housing 200, a screw 420 connected to the output end of the driving motor 410 and capable of extending into the first moving channel or the second moving channel, and a moving sleeve 430 screwed onto the screw 420. The bottom end of the cutting knife 300 is fixedly connected to the corresponding moving sleeve 430, and the side walls of the first moving channel and the second moving channel are provided with a slideway slidably connected to the corresponding position of the moving sleeve 430. The driving motor 410 is also connected to a motor mounting bracket (not shown in the figure) by bolts, and the motor mounting bracket can be connected to the housing 200 or the frame 100, and the function of the motor mounting bracket is to stably and firmly install the driving motor 410. After starting the driving motor 410, the screw 420 rotates in the first moving channel or the second moving channel, thereby driving the moving sleeve 430 screwed onto the screw 420 to reciprocate along the first moving channel or the second moving channel. During the movement, the two sides of the moving sleeve 430 respectively correspond to the sliding grooves in the first moving channel or the second moving channel for sliding cooperation, and the sliding grooves guide the movement of the moving sleeve 430 to make the movement smoother.

[0029] The housing 200 includes a top panel 220, a first constant cross-section section 230, a variable cross-section hopper 240, and a second constant cross-section section 250 that are connected in sequence from top to bottom. The first constant cross-section section 230 includes a number of first shells, and the number of the first shells and the door body 140 can enclose a constant cross-section structure. The unpacking operation is completed within the first constant cross-section section 230 with the largest cross-sectional area, and the spacious space facilitates the unpacking operation. The variable cross-section hopper 240 is formed by enclosing a number of second shells to form an open structure. The first end with the largest cross-sectional area in the open variable cross-section hopper 240 is fixedly connected to the bottom end of the first shell, and the second end with the smallest cross-sectional area is fixedly connected to the second constant cross-section section 250. The second constant cross-section section 250 is formed by enclosing a number of third shells, and the cross-sectional area of the second constant cross-section section 250 is smaller than the cross-sectional area of the first end of the variable cross-section hopper 240. The lower end port of the second constant cross-section section 250 is defined as the material guiding port. The falling molding sand is gathered towards the material guiding port through the open variable cross-section hopper 240, facilitating the discharge of materials. Since the variable cross-section hopper 240 is a variable cross-section structure, some support frames will be exposed outside the housing 200.

[0030] A first through hole 221 vertically penetrating the top panel 220 is provided on the top panel 220, and a second through hole 141 longitudinally penetrating the door body 140 is provided on the door body 140. The first through hole 221 and the second through hole 141 are communicated to form an L-shaped avoidance hole. When using an electric hoist for ton bag lifting, after the door body 140 is opened, the L-shaped avoidance hole allows the hook of the electric hoist to pass through to avoid interference. The advantage of this is that this unpacking machine can cooperate with the electric hoists commonly used in the casting processing site, without the need to design additional lifting components, effectively utilizing the existing equipment on site and saving costs.

[0031] The door body 140 is provided with a transparent area (not shown in the figure), and the working process in the unpacking cavity 210 can be observed through the transparent area. A holding handle (not shown in the figure) is also provided on the door body 140, and the holding handle facilitates opening the door body 140 for unpacking operations.

[0032] This unpacking machine: First, use the electric hoist at the processing site to lift the ton bag and place it in the unpacking cavity 210. After starting the drive motor 410, the screw 420 rotates to drive the moving sleeve 430 to reciprocate. The cutting knife 300 connected to the moving sleeve 430 performs horizontal and vertical cutting under the ton bag. The molding sand in the ton bag falls onto the support frame due to gravity and then enters the variable cross-section hopper 240 and is discharged outside the housing 200 from the position of the material guide port. The unpacking is convenient and fast, with a high degree of automation. Compared with manual unpacking, it reduces the labor intensity of the processing personnel and improves work efficiency. In addition, the unpacking is completed inside the housing 200, avoiding environmental pollution caused by a large amount of dust flying or the situation where dust endangers the processing personnel. Second, the support frame is actually a grid structure with horizontal and vertical intersections in the top-down orthographic projection plane. It not only facilitates sand leakage but also improves the support strength of the frame 100. Moreover, after the molding sand falls onto the support frame due to gravity, the first frame body 610, the second frame body 620, and several support ribs 700 can help cut the agglomerated molding sand, facilitating all the molding sand to smoothly enter the variable cross-section hopper 240 as much as possible.

[0033] The above are only the implementation modes of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent structures made by using the content of the specification and drawings of the present utility model, directly or indirectly applied in other related technical fields, are similarly within the patent protection scope of the present utility model.

Claims

1. A bulk bag untying machine, characterized in that: It includes a frame, a shell connected to the frame and having an unpacking inner cavity, a cutting assembly arranged in the unpacking inner cavity for cutting ton bags, and a driving mechanism connected to the cutting assembly for driving the cutting assembly to reciprocate. The side wall of the shell is provided with a working opening which is communicated with the unpacking inner cavity and can allow ton bags to enter / exit. The working opening is hinged with a door body for controlling the opening or closing of the working opening. The lower end of the shell is provided with a material guide port. When the cutting assembly cuts the ton bag, the material in the ton bag is guided to the outside of the shell through the material guide port.

2. The bulk bag untying machine according to claim 1, characterized in that: The upper part of the frame is provided with a support frame distributed in the unpacking inner cavity and located above the material guide port, the support frame includes a side frame connected to and enclosed by the frame, a main frame arranged inside the hollow side frame, and a plurality of support ribs connected to the main frame and the side frame; The main frame includes a first frame body whose two ends are respectively connected to the side walls of the side frame, and two second frames respectively connected to the two ends of the first frame body, one end of the second frame body is connected to the side frame and the other opposite end is connected to the outer wall of the first frame, and in a top view orthographic projection plane, the first frame body and the second frame body are in a cross-shaped structure; After the first frame and the second frame are connected, the internal space of the side frame can be divided into four to form a first space, a second space, a third space and a fourth space that are independent of each other, and each of the supporting ribs is distributed horizontally and vertically in the corresponding first space, second space, third space and fourth space.

3. The bulk bag unloader according to claim 2, wherein: The first frame is provided with a first movable channel arranged along the length direction of the first frame and capable of vertically penetrating the first frame; all the second frames are provided with a second movable channel arranged along the length direction of the second frame and capable of vertically penetrating the second frame, and the cutting assembly can reciprocate in the first movable channel or the second movable channel to cut ton bags.

4. The bulk bag untying machine according to claim 3, characterized in that: The cutting assembly includes two cutting knives that can move along the first moving channel, and two cutting knives that can move along the corresponding second moving channels respectively. The blades of all the cutting knives are facing the top of the unpacking cavity, and each of the cutting knives is connected to one of the driving mechanisms in a one-to-one manner.

5. The bulk bag untying machine according to claim 4, wherein: Several of the driving mechanisms include a driving motor arranged outside the outer shell, a screw connected to the output end of the driving motor and capable of extending into the first moving channel or the second moving channel, and a moving sleeve screwed on the screw, the bottom end of the cutting knife is fixedly connected to the corresponding moving sleeve, and the side walls of the first moving channel and the second moving channel are provided with sliding grooves slidably connected to the corresponding positions of the moving sleeves.

6. The bulk bag unloader according to claim 2, wherein: The housing includes a top panel, a first constant cross-section section, a variable cross-section hopper, and a second constant cross-section section that are connected in sequence from top to bottom. The first constant cross-section section includes a number of first shells, and the number of the first shells and the door body can enclose to form a constant cross-section structure. The variable cross-section hopper is formed by enclosing a number of second shells to form an open structure. The first end with the largest cross-sectional area in the open variable cross-section hopper is fixedly connected to the bottom end of the first shell, and the second end with the smallest cross-sectional area is fixedly connected to the second constant cross-section section. The second constant cross-section section is formed by enclosing a number of third shells, and the cross-sectional area of the second constant cross-section section is smaller than the cross-sectional area of the first end of the variable cross-section hopper. The lower end port of the second constant cross-section section is defined as the material guiding port.

7. The bulk bag untying machine according to claim 6, characterized in that: A first through hole vertically penetrating the top panel is provided on the top panel, and a second through hole longitudinally penetrating the door body is provided on the door body. The first through hole and the second through hole communicate to form an L-shaped avoidance opening.

8. The bulk bag untying machine according to claim 1, characterized in that: The door body is provided with a transparent area, and a holding handle is further provided on the door body.

9. The bulk bag unloader according to any one of claims 1-8, characterized in that: The frame includes a number of support feet arranged at intervals, a number of support bars connecting the support feet in sequence, and a number of bottom pads respectively connected to the bottom ends of the support feet. A number of reinforcement holes vertically penetrating the bottom pads are provided on each bottom pad.

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