Container bag unloading device

Abstract

The invention discloses a flexible freight bag unloading device, and relates to the technical field of flexible freight bag unloading. Comprising a support platform, an inserting pipe, a hose connecting piece, an air extracting pump and a collecting piece, the inserting pipe is installed at the position of a support and used for puncturing a container bag and guiding powder transfer, the inserting pipe is sequentially connected with the hose connecting piece, the air extracting pump and the collecting piece, the inserting pipe extracts powder through negative pressure through the air extracting pump and transfers the powder into the collecting piece, and a conical cylinder is arranged in the collecting piece. And the powder is transferred to the next production line in a pneumatic mode after entering the conical cylinder. Through the arrangement of the hose connecting piece, the sucking pump, the collecting piece and the like, the device adopts a movable design, the dependence on a fixed discharging platform and a large-area site is reduced, space resources are saved, meanwhile, the site renting and equipment matching cost is reduced, through an integrated automatic discharging mechanism, manual intervention is greatly reduced, the discharging speed and uniformity are improved, and the working efficiency is improved. And material residues are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of bulk bag discharging, and specifically provides a bulk bag discharging device. Background Art

[0002] Flexible packaging containers for the storage and transportation of bulk materials have the following characteristics: high strength and load-bearing capacity, woven from tensile and wear-resistant materials such as polypropylene or polyethylene, with reinforced sewing processes and bottom sling designs to ensure safe handling; high space utilization rate, small volume after folding for easy storage and transportation; moisture-proof, dust-proof, and leak-proof functions, and most powder materials are shipped in bulk bags.

[0003] Chinese Patent with Application No. 2023117931762 discloses a bulk bag discharging device, which includes a support frame; a silo installed on the support frame, and an accommodation cavity is provided inside the silo; a bag-fixing cone is arranged on the inner wall of the accommodation cavity. Combining the content of the above patent, this Chinese patent proposes a platform for discharging bulk bags to improve the discharging efficiency and dust escape effect of bulk bags.

[0004] Considering the actual situation, a dedicated platform for discharging is basically provided for the discharging of large bulk bags to discharge bulk bags centrally. Although it can improve the discharging efficiency, a large amount of site, labor, and equipment are still required to cooperate with the platform for discharging, resulting in insufficient convenience and high costs. In view of this situation, the present invention proposes a new solution. Summary of the Invention

[0005] The purpose of the present invention is to provide a bulk bag discharging device to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A bulk bag discharging device includes:

[0007] A support platform, an insertion tube, a hose connector, an air extraction pump, and a collection member;

[0008] The insertion tube is installed on the support for piercing the bulk bag and guiding the transfer of powder. The insertion tube is sequentially connected to the hose connector, the air extraction pump, and the collection member;

[0009] The insertion tube extracts powder under negative pressure through the air extraction pump and transfers it to the collection member. A cone is arranged in the collection member, and the powder enters the cone and is transferred to the next production line in a pneumatic manner.

[0010] A collecting piece is installed on the base, and the collecting piece is used to collect powder in the container bag and transfer it. That is to say, the powder in the container bag that is unloaded by the container bag unloading device will first pass through the collecting piece and then be transferred. The end of the cannula away from the sharp corner is connected to a vacuum pump, and the vacuum pump creates a negative pressure inside the cannula. After the negative pressure is formed in the cannula, the powder can be sucked more smoothly to achieve the transfer of the powder.

[0011] Insert the cannula into the bulk bag. At this time, if the powder height in the bulk bag is higher than the cannula, the powder can slide down along the cannula under the action of its own gravity and be discharged from the bulk bag. For large bulk bags, when the powder height is lower than the cannula height, it is difficult to unload smoothly by gravity alone. At this time, it is necessary to use subsequent vacuum pumps, hose connectors and other components to assist in unloading.

[0012] Further regarding this solution, the unloading device also includes a base, a vertical frame is installed on the base, the vertical frame is arranged vertically to the base, a push handle is installed on the end of the base away from the vertical frame, and a plurality of universal wheels are installed at the bottom of the base. The base, the vertical frame and the universal wheels together form a bracket platform.

[0013] Further to this solution, a cannula is installed on the stand, the end of the cannula is pointed, and the pointed end of the cannula is tilted upward with an inclination angle of 5°-15°.

[0014] Further to this solution, a rotating paddle is rotatably installed in the shell of the vacuum pump. The rotating paddle is a multi-blade paddle, and multiple blades are equidistantly distributed around the shaft. The shell of the vacuum pump is screwed and fixed to one end of the insert tube. The shell of the vacuum pump is also equipped with a conduit connected to the interior of the shell, and the other end of the conduit is connected to the collecting piece.

[0015] Further regarding this solution, a hose connector is arranged between the insert tube and the vacuum pump, and the hose connector includes connector one, connector two and an outer tube. The surface of connector one is provided with an external thread, which is screwed to the inner wall of the connector of the vacuum pump housing. Connector two is also provided with an external thread, which is screwed to the inner wall of one end of the insert tube. The outer tube is used to connect connector one and connector two.

[0016] Further to this solution, an inner bellows is fixed to the inner wall of the joint, the diameter of the inner bellows is smaller than the diameter of the inner wall of the insert tube, a vertical head is fixed to the end of the inner bellows away from the vacuum pump, a plurality of holes are opened on the vertical head, and the holes are connected to the interior of the inner bellows.

[0017] Furthermore, regarding this solution, tracks are provided at the top of both sides of the vertical frame, and sliding frames are slidably installed on the tracks. The sliding frames span between the two sides of the vertical frame, and a cylinder for driving the sliding frames to rise and fall in the vertical direction is installed under the sliding frames, and the height of the sliding frames is controlled by the cylinder.

[0018] Furthermore, with regard to this solution, an extension frame is provided on one side of the sliding frame. A winch is slidably installed at the extension frame. A lifting rope is provided on the drum of the winch, and a hook is provided at the end of the lifting rope.

[0019] Furthermore, with regard to this solution, the collecting member is installed at one end of the base away from the vertical frame. The collecting member includes a box body. A conical cylinder is fixed between the inner walls at both ends of the box body. One end of the conical cylinder has a larger diameter, and the other end has a smaller diameter, and a conduit directly leads to the inside of the conical cylinder. A blower is installed at the end of the box body close to the end of the conical cylinder with a larger diameter. The end of the conical cylinder with a smaller diameter penetrates the box body and is connected to a collecting device or a production line through a pipeline. The conical cylinder is made of glass.

[0020] Furthermore, with regard to this solution, a battery pack is installed on the base. A driving source is installed on one side of the housing of the air extraction pump. The driving source is used to drive the rotary paddle to rotate. The driving source is a stepping motor or other motor that can drive the rotary paddle. The battery pack is used to supply power to the driving source and the blower. The battery pack is a battery module that can replace battery blocks or be charged.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] Through the settings of a hose connector, an air extraction pump, a collecting member, etc., the bulk bag discharging device adopts a movable design, reduces the dependence on a fixed discharging platform and a large area of site, saves space resources, and at the same time reduces the costs of site leasing and equipment matching. By integrating an automatic discharging mechanism, manual intervention is greatly reduced, the discharging speed and uniformity are improved, material residues are avoided, and a leak-proof sealing design and a hoisting method are equipped to ensure the stability of the bulk bag during the discharging process, reduce dust spillage, and ensure the safety of operators and environmental cleanliness.

[0023] At the same time, the design of the collecting member enables the powder to be transferred and collected in a closed system, avoiding the powder from escaping into the air during the discharging process, reducing environmental pollution caused by dust, and at the same time protecting the physical health of operators. The device can efficiently and thoroughly collect and transfer the powder, reduce the spillage and residue of the powder during the discharging process, improve the utilization rate of the powder, and reduce resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a left axonometric structure schematic diagram of the present invention;

[0026] Figure 3 is a rear perspective structure schematic diagram of the present invention;

[0027] Figure 4 It is the overall cross-sectional view of the present invention;

[0028] Figure 5 It is the schematic structural view of the hose connector and the air extraction pump positions of the present invention.

[0029] In the figure: 1, base; 2, vertical frame; 3, insertion tube; 4, hose connector; 401, joint one; 402, outer tube; 403, joint two; 404, inner corrugated tube; 405, drooping head; 5, air extraction pump; 501, drive source; 502, rotating paddle; 6, conduit; 7, collection member; 701, box body; 702, cover plate; 703, conical cylinder; 704, blower; 8, push handle; 9, universal wheel; 10, track; 11, sliding frame; 111, extension frame; 12, winch; 13, hook; 14, oil cylinder; 15, battery pack. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0031] The unloading device proposed by the present invention is extremely suitable for the unloading operation of a large amount of powdered chemical raw materials during the transportation and production process of chemical raw materials. For example, the unloading of powder bulk bags such as calcium carbonate powder, talc powder, and titanium dioxide powder can effectively improve the transfer and feeding efficiency of raw materials. The unloading of powdered food raw materials such as flour, starch, and milk powder can also be completed with the help of this device. It can achieve fast and stable unloading while ensuring the hygienic safety of powdered food, ensure the smooth connection of the food production process, and at the same time avoid dust emission from polluting the food production environment. It should be noted that this device cannot be used for the unloading of toxic or sensitive powders.

[0032] As Figure 1 shown, the present invention provides a technical solution: a bulk bag unloading device, including a base 1, a vertical frame 2 is installed at the base 1, the vertical frame 2 is perpendicular to the base 1, a push handle 8 is installed at one end of the base 1 away from the vertical frame 2, and a plurality of universal wheels 9 are installed at the bottom of the base 1. The base 1, the vertical frame 2, and the universal wheels 9 together form a support platform. A reinforcing rod is also installed between the vertical frame 2 and the base 1 to form a triangular structure to maintain the stability of the support platform.

[0033] As Figure 3 and Figure 4As shown, an insertion tube 3 is installed on the upright frame 2. The end of the insertion tube 3 is in a sharp angle shape, and the sharp angle end of the insertion tube 3 is arranged obliquely upward, with an inclination angle of 5° - 15°. During use, by holding the push handle 8 by hand, the insertion tube 3 is inserted into the bulk bag, and the powder is discharged from the bulk bag through the guidance of the insertion tube 3. It should be noted that in this embodiment, the bulk bag is a large cloth bag or a plastic bulk bag. Such bulk bags usually require a break for discharging materials, so the damage to the bulk bag can be ignored.

[0034] Insert the insertion tube 3 into the bulk bag. At this time, if the height of the powder in the bulk bag is higher than that of the insertion tube 3, the powder can slide down along the insertion tube 3 under its own gravity and be discharged from the bulk bag. For large bulk bags, when the height of the powder is lower than the height of the insertion tube 3, it is difficult to discharge the materials smoothly only by gravity. At this time, auxiliary components such as the subsequent air extraction pump 5 and the hose connector 4 are needed to assist in discharging the materials.

[0035] A collection member 7 is installed on the base 1. The collection member 7 is used to collect the powder in the bulk bag and transfer it. That is to say, for the bulk bag unloaded by this bulk bag unloading device, the powder will first pass through the collection member 7 and then be transferred. Among them, one end of the insertion tube 3 far from the sharp angle is connected to an air extraction pump 5. The air extraction pump 5 creates a negative pressure inside the insertion tube 3. After a negative pressure is formed inside the insertion tube 3, it can suck the powder more smoothly and realize the transfer of the powder.

[0036] As Figure 5 shown, a rotating paddle 502 is rotatably installed inside the housing of the air extraction pump 5. The rotating paddle 502 is a multi-blade paddle, and multiple blades are evenly distributed around the shaft rod. The housing of the air extraction pump 5 is screwed and fixed to one end of the insertion tube 3. That is to say, the insertion tube 3 is directly communicated with the inside of the air extraction pump 5. The housing of the air extraction pump 5 is also provided with a conduit 6 communicated with the inside of the housing. The other end of the conduit 6 is connected to the collection member 7. During the rotation of the rotating paddle 502, it can not only form a negative pressure inside the insertion tube 3, but also push the powder into the conduit 6, which can avoid the blockage inside the air extraction pump 5.

[0037] In the above embodiment, during specific implementation, by inserting the insertion tube 3 into the bulk bag and starting the air extraction pump 5 to guide the powder, the powder is transferred from the bulk bag to the collection member 7. It should be noted that in this embodiment, the bulk bag is a large bulk bag. That is to say, when the height of the powder in the bulk bag is lower than the height of the insertion tube 3, it is difficult to extract the powder through the cooperation of the air extraction pump 5 and the insertion tube 3;

[0038] As Figure 3 and Figure 4As shown, as a supplementary embodiment of the above embodiment, a hose connector 4 is further provided between the intubation tube 3 and the air extraction pump 5. The hose connector 4 is used to continue extracting the powder when the height of the powder in the bulk bag is lower than the height of the intubation tube 3. The hose connector 4 includes a first joint 401, a second joint 403 and an outer tube 402. The surface of the first joint 401 is provided with an external thread and is screwed to the inner wall of the joint of the housing of the air extraction pump 5. The second joint 403 is also provided with an external thread and is screwed to the inner wall of one end of the intubation tube 3. The outer tube 402 is used to connect the first joint 401 and the second joint 403.

[0039] As Figure 4 shown, an inner corrugated tube 404 is fixed to the inner wall of the first joint 401. The diameter of the inner corrugated tube 404 is smaller than the inner diameter of the intubation tube 3. That is to say, the inner corrugated tube 404 can directly pass through the inside of the intubation tube 3 and pass out from the sharp corner end of the intubation tube 3, and automatically sag under the action of gravity, facilitating the inner corrugated tube 404 to contact the bottom of the bulk bag. A drooping head 405 is fixed to one end of the inner corrugated tube 404 far from the air extraction pump 5. A plurality of holes are formed in the drooping head 405, and the holes communicate with the inside of the inner corrugated tube 404. The drooping head 405 can always make the inner corrugated tube 404 approach the bottom of the powder under the action of gravity.

[0040] Both the first joint 401 and the second joint 403 of the hose connector 4 are provided with external threads and are respectively screwed to the housing of the air extraction pump 5 and the intubation tube 3. This threaded connection method is not only convenient for installation and disassembly, but also has good sealing performance, can ensure the airtightness of the connection, guarantee the formation and maintenance of negative pressure. The diameter of the inner corrugated tube 404 is smaller than the inner diameter of the intubation tube 3, enabling it to smoothly pass through the intubation tube 3 and sag naturally under the action of gravity. The design of the drooping head 405 further improves the pertinence of the inner corrugated tube 404 for powder collection, ensuring that it can contact the powder at the bottom of the bulk bag.

[0041] As Figure 2 and Figure 3 shown, in the specific implementation process of the above embodiment, the powder in the bulk bag will gradually decrease, and the bulk bag will gradually collapse after the powder decreases. The powder does not gather at the bottom of the bulk bag, affecting the discharging operation of the powder. To ensure the smooth implementation of this embodiment, it should be understood that tracks 10 are provided at the top of both sides of the vertical frame 2. A sliding frame 11 is slidably installed on the tracks 10. The sliding frame 11 spans between the two sides of the vertical frame 2, and an oil cylinder 14 for driving the sliding frame 11 to lift in the vertical direction is installed below the sliding frame 11. The height of the sliding frame 11 is controlled by the oil cylinder 14.

[0042] As Figure 2 and Figure 3As shown in the figure, an extension frame 111 is provided on one side of the sliding frame 11. A winch 12 is slidably installed at the extension frame 111. A lifting rope is provided on the drum of the winch 12, and the end of the lifting rope is a hook 13. In the fishing state, the axis of the lifting rope and the part of the inner corrugated pipe 404 extending from the insertion pipe 3 are approximately on the same axis. During the specific use process, the hook 13 is used to pierce the top of the flexible intermediate bulk container (FIBC) and suspend the FIBC. Due to the soft characteristics of the FIBC, the powder will gradually accumulate and gather at the bottom, facilitating the collection of the powder by the inner corrugated pipe 404.

[0043] As the powder in the FIBC decreases, the FIBC will gradually collapse, and the powder will not gather at the bottom, affecting the discharging effect. At this time, the height of the sliding frame 11 is controlled by the oil cylinder 14 to lower the sliding frame 11. The hook 13 of the winch 12 on the sliding frame 11 pierces the top of the FIBC and suspends it. Due to the softness of the FIBC, the powder will accumulate and gather at the bottom under the action of gravity, facilitating the collection of the powder by the inner corrugated pipe 404 and improving the discharging efficiency.

[0044] As Figure 3 shown, for the smooth implementation of the above embodiments, it should be understood that, to facilitate the transfer of the powder and avoid the escape of dust, the collecting member 7 serves as a transfer station responsible for the storage and transfer of the powder. The collecting member 7 includes a box body 701. A conical cylinder 703 is fixed between the inner walls at both ends of the box body 701. One end of the conical cylinder 703 has a larger diameter, and the other end has a smaller diameter, and the conduit 6 directly leads to the inside of the conical cylinder 703. A blower 704 is installed at the end of the box body 701 near the larger diameter of the conical cylinder 703. The smaller diameter end of the conical cylinder 703 penetrates the box body 701 and is connected to the collecting device or production line through a pipeline. The powder is supplied to the collecting device or production line by the blower 704. An openable cover plate 702 is provided on the top of the box body 701. The conical cylinder 703 is made of glass. After opening the cover plate 702, the transfer situation of the powder in the conical cylinder 703 can be observed.

[0045] As Figure 1 and Figure 2 shown, for the smooth implementation of the above embodiments, it should be understood that a battery pack 15 is installed on the base 1, and a drive source 501 is installed on one side of the housing of the air extraction pump 5. The drive source 501 is used to drive the rotary paddle 502 to rotate. The drive source 501 is a stepper motor or other motor that can drive the rotary paddle 502. The battery pack 15 is used to supply power to the drive source 501 and the blower 704. The battery pack 15 is a battery module that can replace battery blocks or be charged, which is a mature existing technology and will not be elaborated here.

[0046] In summary, first, the discharge port is formed by piercing the flexible intermediate bulk container (FIBC) with the insertion pipe 3. After starting the air extraction pump 5, the rotation of the rotating paddle 502 creates a negative pressure inside the insertion pipe 3. At the same time, the blades push the powder to transfer through the conduit 6 towards the collection member 7. When the height of the powder is lower than the insertion pipe 3, the hose connector 4 is installed. The inner corrugated pipe 404 of the hose connector 4 automatically droops to the bottom of the FIBC under the gravity of the drooping head 405, and continuously extracts the residual powder through the multiple holes of the drooping head 405. If the FIBC collapses due to the reduction of the powder and the powder is dispersed, the height of the sliding frame 11 is adjusted by the oil cylinder 14, and the top of the FIBC is suspended by the hook 13 of the winch 12, forcing the powder to gather towards the bottom to ensure that the inner corrugated pipe 404 effectively contacts the powder layer. The box body 701 of the collection member 7 provides a relatively enclosed collection space for the powder. The design of the conical cylinder 703 is conducive to the convergence and guidance of the powder, enabling it to smoothly flow towards the outlet connected to the pipeline. The setting of the blower 704 can not only transport the powder to the designated collection equipment or production line, but also prevent the powder from accumulating inside the collection member 7 to a certain extent, ensuring the efficient transfer of the powder. The openable cover plate 702 and the conical cylinder 703 made of glass provide convenient observation and maintenance conditions for the operator, facilitating the timely discovery and handling of possible problems during the discharging process.

[0047] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bulk bag unloading device, characterized in that, Including: A support platform, an intubation tube (3), a hose connector (4), an air extraction pump (5), and a collection member (7); The intubation tube (3) is installed at the support for puncturing the flexible intermediate bulk container and guiding the powder transfer. The intubation tube (3) is successively connected to the hose connector (4), the air extraction pump (5), and the collection member (7); The intubation tube (3) extracts the powder under negative pressure through the air extraction pump (5) and transfers it into the collection member (7). A conical cylinder (703) is provided in the collection member (7). After the powder enters the conical cylinder (703), it is transferred to the next production line in a pneumatic manner.

2. The bulk bag discharging device according to claim 1, wherein: The discharging device further includes a base (1). A vertical frame (2) is installed at the base (1). The vertical frame (2) is vertically arranged with the base (1). A push handle (8) is installed at one end of the base (1) away from the vertical frame (2). A plurality of universal wheels (9) are installed at the bottom of the base (1). The base (1), the vertical frame (2), and the universal wheels (9) together form the support platform.

3. The bulk bag discharging device according to claim 2, characterized in that: The intubation tube (3) is installed on the vertical frame (2). The end of the intubation tube (3) is in a sharp corner shape. The sharp corner end of the intubation tube (3) is inclined upward, and the inclination angle is 5° - 15°.

4. The bulk bag discharging device according to claim 1, wherein: A rotating paddle (502) is rotatably installed in the shell of the air extraction pump (5). The rotating paddle (502) is a multi-blade paddle. Multiple blades are equidistantly distributed around the shaft rod. The shell of the air extraction pump (5) is fixedly connected to one end of the intubation tube (3) by screwing. A conduit (6) communicating with the inside of the shell is further installed on the shell of the air extraction pump (5). The other end of the conduit (6) is connected to the collection member (7).

5. The bulk bag discharging device according to claim 1, wherein: A hose connector (4) is arranged between the intubation tube (3) and the air extraction pump (5). The hose connector (4) includes a first joint (401), a second joint (403), and an outer tube (402). External threads are provided on the surface of the first joint (401), which is screwed to the inner wall of the joint of the shell of the air extraction pump (5). External threads are also provided at the second joint (403), which is screwed to the inner wall of one end of the intubation tube (3). The outer tube (402) is used to connect the first joint (401) and the second joint (403).

6. The bulk bag discharging device according to claim 5, wherein: An inner corrugated pipe (404) is fixed to the inner wall of the first joint (401). The diameter of the inner corrugated pipe (404) is smaller than the inner diameter of the intubation tube (3). A drooping head (405) is fixed to one end of the inner corrugated pipe (404) away from the air extraction pump (5). A plurality of holes are provided on the drooping head (405), and the holes communicate with the inside of the inner corrugated pipe (404).

7. The bulk bag discharging device according to claim 2, wherein: Tracks (10) are provided at the top of both sides of the vertical frame (2). A sliding frame (11) is slidably installed on the tracks (10). The sliding frame (11) spans between the two sides of the vertical frame (2). An oil cylinder (14) for driving the sliding frame (11) to lift in the vertical direction is installed below the sliding frame (11). The height of the sliding frame (11) is controlled by the oil cylinder (14).

8. The bulk bag discharging device according to claim 1, characterized in that: An extension frame (111) is arranged on one side of the sliding frame (11). A winch (12) is slidably installed on the extension frame (111). A lifting rope is arranged on the drum of the winch (12), and a hook (13) is arranged at the end of the lifting rope.

9. The bulk bag discharging device according to claim 2, characterized in that: The collecting member (7) is installed at one end of the base (1) away from the standing frame (2). The collecting member (7) includes a box body (701). A conical cylinder (703) is fixed between the inner walls at both ends of the box body (701). One end of the conical cylinder (703) has a larger diameter, and the other end has a smaller diameter, and the conduit (6) directly leads to the inside of the conical cylinder (703). A blower (704) is installed at the end of the box body (701) close to the end of the conical cylinder (703) with a larger diameter. The end of the conical cylinder (703) with a smaller diameter penetrates through the box body (701) and is connected to a collecting device or a production line through a pipeline. The conical cylinder (703) is made of glass material.

10. The bulk bag discharging device according to claim 1, characterized in that: A battery pack (15) is installed on the base (1). A driving source (501) is installed on one side of the housing of the air extraction pump (5). The driving source (501) is used to drive the rotating paddle (502) to rotate.

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