Sand bagging device and method for concrete production

Abstract

The present invention relates to the technical field of sand bagging, and specifically to a sand bagging device and method for concrete production, comprising a sand bagging frame, a bag processing component, a control switching component and a conveying component. A sand storage box is arranged on one side of the sand bagging frame, and a feeding platform is arranged horizontally at the lower end of the sand storage box. A horizontal conveying platform with two bag feeding platforms is arranged directly below a drop opening. When the sand needs to be bagged, the bag feeding platform can automatically convey the unbaked sand packaging bag, and then when the sand reaches the position of the guide barrel, the bag is opened before the guide barrel falls in cooperation with the lifting control component. At the same time, under the cooperation of the control switching component and the bag processing component, the bag opening is pneumatically propped up and clamped, so that the drop opening and the guide barrel can drop sand in the sand packaging bag conveniently. The overall operation is simple, the danger of manual operation is reduced, and the efficiency of sand bagging is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sand bagging, and in particular to a sand bagging device and method for concrete production. Background Art

[0002] Concrete is a commonly used building material. When producing concrete, sand, gravel, cement, etc. need to be fully mixed with water, and chemical admixtures and mineral admixtures are added when necessary. The sand used in concrete production is mainly transported directly by carriages and packaged in bags for transportation;

[0003] The utility model with the existing announcement number CN205952350U discloses a new type of sand bagging machine. Two hoppers are arranged at the upper end of the frame, and vibration pumps are installed on the outer side walls of the two hoppers. Motors, conveyor belts and reducers are arranged at the bottom of the two hoppers. A discharge port is arranged at the front end of the conveyor belt. A CNC distribution box is installed on the middle bracket of the frame, a handle is installed on the CNC distribution box, and a timing meter is arranged in the CNC distribution box. It has changed the status quo of manual sand loading in traditional construction engineering fields. It controls the discharge through a CNC switch and can adjust the discharge amount. The sand in the hopper is delivered by a motor-controlled conveyor belt. When there is little remaining sand in the hopper, the vibration pump vibrates to assist in the discharge. It not only realizes the mechanized sand bagging function, but also greatly saves manpower, improves work efficiency, and can accurately control the amount of sand bagging, providing the construction engineering industry with a convenient, efficient and practical auxiliary machinery. When using this type of sand bagging machine, the operator is required to be on one side of the equipment and hold the packaging bag to connect it with the sand discharge port. Although it saves manpower to load sand, it still requires staff to stay focused on one side for auxiliary use, which affects the efficiency of continuous sand loading and is inconvenient to use. Summary of the invention

[0004] The object of the present invention is to provide a sand bagging device and method for concrete production to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a sand bagging device for concrete production, the sand bagging device for concrete production comprising:

[0006] A sand bagging frame, wherein a sand storage box is provided on one side of the sand bagging frame, a feeding platform is provided horizontally at the lower end of the sand storage box, a feeding port is provided at the lower end of one side of the feeding platform, a guide barrel is provided at the lower end of the feeding port through a lifting control component, and the lifting control component includes a lifting movable plate;

[0007] A bag handling assembly is arranged on both sides of the guide barrel, and the bag handling assembly includes two functional boxes and two L-shaped turning frames. A folding interface is arranged at the lower end of the guide barrel, and a clamping plate is arranged on one side of the two L-shaped turning frames. During the bagging operation, the two clamping plates are respectively pressed against the two sides of the folding interface;

[0008] A control switch assembly, the control switch assembly includes two switch cylinders, the two switch cylinders are vertically symmetrically arranged on both sides of the lower end of the lifting movable plate, and the two switch cylinders are respectively connected to the two function boxes;

[0009] The conveying assembly is horizontally arranged just below the guiding barrel, and the conveying assembly comprises a horizontal conveying platform, two bag conveying platforms and two negative pressure movable plates.

[0010] Preferably, a fixed support plate is horizontally provided at the upper end of the blanking port, and a plurality of lifting control rods are vertically and symmetrically provided at the lower end of the fixed support plate. The lifting movable plate is movably sleeved on the upper end of the guide barrel, and the lower ends of the plurality of fixed support plates are respectively connected to the upper ends of the lifting movable plate. A pulling skirt ring is horizontally provided on one side of the guide barrel, and a plurality of tension and compression sensor modules are vertically provided on the lower end of the lifting movable plate and the upper end of the pulling skirt ring through bolt hangers, and the diameter of the upper end of the guide barrel is larger than the diameter of the blanking port and sleeved on the lower end of the blanking port.

[0011] Preferably, an axis groove is provided on one side of the two function boxes, and the upper ends of the two L-shaped flip frames are movably inserted into the two axis grooves through the rotation axis, two pushing piston cylinders are vertically symmetrically provided on one side of the upper end of the function box, and the two L-shaped flip frames are provided with arc piston rods on one side close to the pushing piston cylinder, and the two arc piston rods are respectively movably inserted into the lower ends of the two pushing piston cylinders and are provided with pushing pistons, and the function box is provided with an arc guide rod on one side of the arc piston rod close to the L-shaped flip frame, and one side of the arc guide rod movably passes through the L-shaped flip frame and is inserted into the arc piston rod, a rebound groove is provided on one side of the function box located on the arc guide rod, and a return spring is sleeved on one side of the arc guide rod placed in the rebound groove, and the virtual axes of the arc guide rod and the arc piston rod are coaxially arranged with the rotation axis in the axis groove.

[0012] Preferably, the two switching cylinders are respectively arranged on one side of the lifting movable plate close to the function box, and piston grooves are opened in the switching cylinders. A pressure delivery conduit is vertically provided at the lower end of the fixed support plate located at the switching cylinder position. The lower end of the pressure delivery conduit movably passes through the piston groove of the lifting movable plate to insert the switching cylinder and is provided with a blocking piston. The four sides of the blocking piston are vertically penetrated through the upper and lower ends to form a plurality of two-way grooves, and the pressure delivery conduit is respectively connected to the plurality of two-way grooves.

[0013] Preferably, the movable length of the blocking piston in the piston groove is equal to the upper and lower movable heights of the lifting movable plate and the guiding barrel, the switching barrel is located on the upper and lower sides of the piston groove and is respectively connected to a first output ring and a second output ring, and the upper and lower ends of the functional box are respectively horizontally opened with a first adapter groove and a second adapter groove, one side of the first output ring is connected and plugged with a first air supply pipe, one side of the first air supply pipe is connected and plugged with one side of the second adapter groove, one side of the second output ring is connected and plugged with a second air supply pipe, and one side of the second air supply pipe is connected and plugged with one side of the first adapter groove.

[0014] Preferably, the upper ends of the two pushing piston cylinders on one side of the functional box are respectively connected to the two sides of the lower end of the first adapter groove, a first annular groove is opened in the gathering interface, a number of blowing ports are opened in the vertical gathering interface at the lower end of the first annular groove, and auxiliary air grooves are opened on one side of the two second adapter grooves and one side of the first annular groove respectively.

[0015] Preferably, the horizontal conveying platform is located directly below the guiding barrel, and a plurality of supporting columns are vertically and symmetrically provided on the upper ends of both sides of the horizontal conveying platform. Two bag delivering platforms are horizontally provided on the upper ends of the plurality of supporting columns on both sides of the horizontal conveying platform, and a bag moving area is sandwiched between the two bag delivering platforms. The bag delivering platforms are located on both upper and lower sides of the bag moving area and first clamping conveyor belts are horizontally provided. When sand packaging bags are vertically placed in the bag moving area, the four first clamping conveyor belts are in extrusion contact with the upper ends of both sides of the sand packaging bags.

[0016] Preferably, the bag feeding platform is provided with a give way groove on one side close to the guiding barrel, the give way groove is provided with a first sliding groove on both sides horizontally and symmetrically, a give way movable plate is provided horizontally in the give way groove, two first sliding blocks are provided symmetrically on both sides of the give way movable plate, the first sliding block is movably inserted in the first sliding groove, a first spring is provided on the side of the first sliding block away from the guiding barrel, an adaptation groove is provided horizontally inside, two second sliding grooves are provided horizontally and symmetrically on both sides of the adaptation groove, a negative pressure movable plate is horizontally inserted in the adaptation groove, two second sliding blocks are provided horizontally and symmetrically on both sides of the negative pressure movable plate, the two second sliding blocks are respectively movably inserted in the two second sliding grooves, a second spring is provided on one side of the two second sliding blocks close to the guiding barrel, the negative pressure movable plate is located in the adaptation groove and close to the guiding barrel and is symmetrically provided with a plurality of opening suction cups, a second clamping conveyor belt is provided horizontally at the lower end of the give way movable plate close to the guiding barrel, and the second clamping conveyor belt is flush with the first clamping conveyor belt when the guiding barrel is not lowered.

[0017] Preferably, one side of the negative pressure movable disk is obliquely penetrated with two pulling rod grooves, and a micro-push-pull block is provided on one side of the upper end of the negative pressure movable disk located at the pulling rod groove, and the side surface of the micro-push-pull block close to the pulling rod groove is an inclined surface, and two transmission push-pull rods are symmetrically provided on both sides of the lower end of the lifting movable plate, one side of the lower end of the transmission push-pull rod is inclined, and the inclined side of the transmission push-pull rod is movably inserted into the pulling rod groove.

[0018] A method for using a sand bagging device for concrete production, wherein the method is applied to a sand bagging device for concrete production, and comprises the following steps:

[0019] Step 1: The sand is poured into the sand storage box of the sand bagging rack by a forklift or conveyor in advance. The sand is evenly delivered to the feeding port through the feeding platform under the sand bagging rack. Then the sand falls from the feeding port under the action of gravity and falls into the sand packaging bag after being guided by the guide barrel.

[0020] Step 2: When packing sand, the unused sand packaging bags are placed on the two bag feeding platforms with the opening facing upwards, and are stably moved to the guide barrel position through the first clamping conveyor belt. When the sand packaging bags are directly below the guide barrel, the lifting control rod pushes the lifting movable plate to be steadily pressed down, and the guide barrel descends with it under the action of its own gravity;

[0021] Step 3: As the lifting movable plate descends, the lower end of the transmission push-pull rod contacts the upper end inclined surface of the micro-push ejector block, and the transmission push-pull rod pushes the negative pressure movable disk to squeeze the second spring, and makes several open suction cups contact the sand packaging bag. At this time, the open suction cups generate negative pressure suction to adsorb both sides of the sand packaging bag, and then the transmission push-pull rod continues to descend. When the transmission push-pull rod is in the pull rod slot position, under the reverse push of the second spring and the coordinated action of the inclined structure, the lower end of the transmission push-pull rod is inserted into the pull rod slot, and then as the lifting movable plate and the transmission push-pull rod continue to descend, the negative pressure movable disk pushes the yielding movable plate to squeeze the first spring, and the bag mouth of the sand packaging bag is opened. Then, as the guide barrel of the lifting movable plate continues to descend, the bag mouth has been opened to a corresponding width before the folding interface enters the sand packaging bag.

[0022] Step 4: When the guide barrel and the retraction interface are lowered to the appropriate position, since the fixed support plate is stationary, the lifting movable plate drives the switching barrel to move downward, so that the blocking piston of the pressure delivery pipe moves to the upper end of the piston groove and blocks the connection position of the first output ring. At this time, high-pressure gas is delivered into the pressure delivery pipe, and the high-pressure gas enters the first adapter groove through the second output ring and the second air delivery pipe. Then the high-pressure gas enters the two pushing piston cylinders to push the two arc-shaped piston rods, and pushes the two L-shaped turning frames and the clamping plate to rotate. The clamping plate clamps the two sides of the sand packaging bag on both sides of the retraction interface of the guide barrel. Before the fixed support plate is not lowered to the maximum extent, the pressure delivery pipe can continuously deliver low-pressure gas. At this time, the low-pressure gas cannot push the L-shaped turning frame to squeeze The return spring is compressed, and the low-pressure gas enters the first annular groove of the folding interface through the first output ring, the first air supply pipe and the second adapter groove, and then is blown out evenly from the blowing port to blow gas into the sand packaging bag that is not fully opened, so that the inside of the sand packaging bag is expanded and full, which facilitates the insertion of the folding interface into the bag opening of the sand packaging bag. As the sand falls into the sand packaging bag through the guide barrel, a number of tension and compression sensor modules weigh the weight in the bag in real time. When the corresponding weight is reached, the pressure supply pipe sends in air pressure for pressure relief. The L-shaped flip frame and the clamping plate rotate away from the guide barrel under the action of the return spring, and the guide barrel and the fixed support plate are lifted. The transmission push-pull rod moves out of the negative pressure movable plate, and the give way movable plate returns to its original position under the action of the first spring, waiting for the next packaging bag to move over.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] A horizontal conveyor platform with two bag delivery platforms is arranged directly below the drop port. When the sand needs to be bagged, the bag delivery platform can automatically transport the unbaked sand packaging bags. Then, when the sand reaches the guide barrel position, the bag is opened before the guide barrel falls in cooperation with the lifting control component. At the same time, the bag opening is pneumatically propped up and clamped with the cooperation of the control switching component and the bag handling component, so that the drop port and the guide barrel can drop sand in the sand packaging bag. The overall operation is simple, which reduces the risk of manual operation and improves the efficiency of sand bagging. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 for Figure 1 A magnified schematic diagram of the middle A area;

[0027] Figure 3 This is a schematic diagram of the connection structure between the blanking port and the guide barrel of the present invention;

[0028] Figure 4 for Figure 3 A magnified schematic diagram of the B part;

[0029] Figure 5 It is a partial side-cut schematic diagram of the structure of the present invention;

[0030] Figure 6 for Figure 5 A magnified schematic diagram of the middle C area;

[0031] Figure 7 for Figure 5 The enlarged schematic diagram of the D part in the middle;

[0032] Figure 8 It is a schematic diagram of the structure of the bag processing assembly of the present invention;

[0033] Fig. 9 for Figure 8 A magnified schematic diagram of the E part;

[0034] Fig.10 A partial cross-sectional view of the guide barrel of the present invention;

[0035] Fig.11 for Fig.10 A magnified schematic diagram of the F part in the middle;

[0036] Fig.12 for Fig.10 A magnified schematic diagram of the middle G part;

[0037] Fig.13 A cross-sectional view showing the connection between the arc-shaped piston rod and the arc-shaped guide rod of the present invention;

[0038] Fig.14 It is a schematic diagram of the conveying assembly of the present invention;

[0039] Fig.15 for Fig.14 A magnified schematic diagram of the middle H part;

[0040] Fig.16 The present invention gives way to the exploded schematic diagram of the movable plate connection;

[0041] Fig.17 for Fig.16 A magnified schematic diagram of the middle J area;

[0042] Fig.18 for Fig.11 Enlarged schematic diagram of the K part in the middle.

[0043] In the figure: sand bagging machine frame 1, feeding port 2, guide barrel 3, fixed support plate 4, lifting movable plate 5, lifting control rod 6, pulling skirt ring 7, tension and pressure sensor module 8, function box 9, L-shaped flip frame 10, clamping plate 11, folding interface 12, pushing piston cylinder 13, arc piston rod 14, arc guide rod 15, reset spring 16, switching cylinder 17, pressure delivery conduit 18, blocking piston 181, two-way groove 182, first output ring 19, second output ring 20, first adapter groove 21, second adapter Groove 22, first air supply pipe 23, second air supply pipe 24, first annular groove 25, blowing port 26, horizontal conveying platform 27, bag delivery platform 28, first clamping conveyor belt 29, yielding movable plate 30, negative pressure movable disk 31, open suction cup 32, first spring 33, second spring 34, pull rod groove 35, micro-push ejection block 36, transmission push-pull rod 37, second annular groove 39, air flow groove 40, vibration groove 41, eccentric vibration disk 42, toggle blade 43, solenoid valve 44, second clamping conveyor belt 45. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Please refer to the attached Figure 1-Figure 18 , this application provides the following technical solutions.

[0046] Embodiment 1

[0047] A sand bagging device for concrete production comprises a sand bagging frame 1, a sand storage box is arranged on one side of the sand bagging frame 1, a feeding platform is arranged horizontally at the lower end of the sand storage box, a drop opening 2 is arranged at the lower end of one side of the feeding platform, a guide barrel 3 is arranged at the lower end of the drop opening 2 through a lifting control component, the lifting control component comprises a lifting movable plate 5, a fixed support plate 4 is arranged horizontally at the upper end of the drop opening 2, a plurality of lifting control rods 6 are arranged vertically and symmetrically at the lower end of the fixed support plate 4, and the lifting movable plate 5 is movably sleeved with the guide barrel 3 At the upper end, the lower ends of several fixed support plates 4 are respectively connected to the upper ends of the lifting movable plates 5, a pulling skirt ring 7 is horizontally provided on one side of the guide barrel 3, and the lower end of the lifting movable plate 5 and the upper end of the pulling skirt ring 7 are vertically provided with several tension and compression sensor modules 8 through bolt hangers, and the upper end of the guide barrel 3 has a diameter greater than the diameter of the blanking port 2 and is sleeved on the lower end of the blanking port 2, and the guide barrel 3 is movably installed through the lifting movable plate 5, and the tension and compression sensor module 8 can facilitate the lifting movable plate 5 to weigh the bagged sandbags, thereby improving the bagging quality;

[0048] A bag handling assembly is provided to connect and cooperate the sand packaging bag and the guide barrel 3. The bag handling assembly is provided on both sides of the guide barrel 3. The bag handling assembly includes two function boxes 9 and two L-shaped turning frames 10. A folding interface 12 is provided at the lower end of the guide barrel 3. A clamping plate 11 is provided on one side of the two L-shaped turning frames 10. During the bagging operation, the two clamping plates 11 are respectively squeezed with both sides of the folding interface 12. An axis groove is provided on one side of the two function boxes 9. The upper ends of the two L-shaped turning frames 10 are movably plugged into the two axis grooves through the rotation axis. Two pushing piston cylinders 13 are vertically symmetrically provided on one side of the upper end of the function box 9. The two L-shaped turning frames 10 are provided with an arc piston rod 14 on one side close to the pushing piston cylinder 13. The two arc-shaped piston rods 14 are movably inserted into the lower ends of the two pushing piston cylinders 13 and are provided with a pushing piston. The function box 9 is provided with an arc-shaped guide rod 15 on one side of the arc-shaped piston rod 14 close to the L-shaped flip frame 10. One side of the arc-shaped guide rod 15 movably passes through the L-shaped flip frame 10 and is inserted into the arc-shaped piston rod 14. The function box 9 is provided with a rebound groove on one side of the arc-shaped guide rod 15. The arc-shaped guide rod 15 is placed in the rebound groove and one side is sleeved with a return spring 16. The virtual axes of the arc-shaped guide rod 15 and the arc-shaped piston rod 14 are coaxially arranged with the rotation axis in the axis groove. The sand packaging bag and the folding interface 12 can be clamped and fixed by two clamping plates 11. At this time, the sand loaded into the sand packaging bag can be weighed.

[0049] Embodiment 2

[0050] On the basis of the first embodiment, a control switching component is set to inflate and open the bag opening and switch the bag opening of the clamping plate 11. The control switching component includes two switching cylinders 17. The two switching cylinders 17 are vertically symmetrically arranged on both sides of the lower end of the lifting movable plate 5, and the two switching cylinders 17 are respectively connected to the two function boxes 9. The two switching cylinders 17 are respectively arranged on the side of the lifting movable plate 5 close to the function box 9. A piston groove is opened in the switching cylinder 17. The lower end of the fixed support plate 4 located at the position of the switching cylinder 17 is vertically provided with a pressure delivery conduit 18. The lower end of the pressure delivery conduit 18 movably passes through the piston groove of the lifting movable plate 5 to plug the switching cylinder 17 and is provided with a blocking piston 181. The four sides of the blocking piston 181 are vertically penetrated through the upper and lower ends to open a number of bidirectional grooves 182, and the pressure delivery conduit 18 are respectively connected with a plurality of bidirectional grooves 182, the movable length of the blocking piston 181 in the piston groove is equal to the vertical movable height of the lifting movable plate 5 and the guide barrel 3, the switching cylinder 17 is located at the upper and lower sides of the piston groove and is respectively connected with a first output ring 19 and a second output ring 20, the upper and lower ends of the function box 9 are respectively horizontally opened with a first adapter groove 21 and a second adapter groove 22, one side of the first output ring 19 is connected and plugged with a first air supply pipe 23, one side of the first air supply pipe 23 is connected and plugged with one side of the second adapter groove 22, one side of the second output ring 20 is connected and plugged with a second air supply pipe 24, one side of the second air supply pipe 24 is connected and plugged with one side of the first adapter groove 21, and the utilization and differentiation of the gas is realized through the upper and lower movable positions of the lifting movable plate 5;

[0051] The upper ends of the two pushing piston cylinders 13 on one side of the function box 9 are respectively connected to the two sides of the lower end of the first adapter groove 21, and a first annular groove 25 is opened in the folding interface 12, and a plurality of blowing ports 26 are opened at the lower end of the first annular groove 25 vertically to the folding interface 12, and auxiliary gas grooves are opened on one side of the two second adapter grooves 22 and one side of the first annular groove 25 respectively. When gas enters the pushing piston cylinder 13, the L-shaped flip frame 10 is pushed to clamp the sand packaging bag. When gas enters the folding interface 12, air is filled into the sand packaging bag through the plurality of blowing ports 26 to expand it and open the bag mouth fully.

[0052] Embodiment 3

[0053] On the basis of the second embodiment, a conveying assembly is provided to mechanically convey the sand packaging bags before and after the sand is filled. The conveying assembly is horizontally arranged just below the guide barrel 3. The conveying assembly comprises a horizontal conveying platform 27, two bag feeding platforms 28 and two negative pressure movable plates 31. The horizontal conveying platform 27 is located just below the guide barrel 3. A plurality of support columns are vertically and symmetrically arranged on the upper ends of both sides of the horizontal conveying platform 27. The two bag feeding platforms 28 are respectively horizontally arranged on the upper ends of a plurality of support columns on both sides of the horizontal conveying platform 27. A bag walking area is sandwiched between the two bag feeding platforms 28. The bag feeding platforms 28 are located on both sides of the bag walking area. Both sides of the first clamping conveyor belts 29 are horizontally arranged. When sand packaging bags are vertically placed in the bag walking area, the four first clamping conveyor belts 29 are squeezed and contacted with the upper ends of both sides of the sand packaging bags. The unused sand packaging bags can be uniformly loaded by the suction cup loading machine for packaging bags in the prior art, so that the sand packaging bags are located between the two bag feeding platforms 28. The bag loading can also be assisted by manual operation, and the operation difficulty and danger level are low, and the operation is worry-free and convenient.

[0054] A yield groove is provided on one side of the bag feeding platform 28 close to the guide barrel 3, and first slide grooves are symmetrically provided on both sides of the yield groove, a yield movable plate 30 is horizontally provided in the yield groove, two first sliders are symmetrically provided on both sides of the yield movable plate 30, the first slider is movably inserted in the first slide groove, a first spring 33 is provided on the side of the first slider away from the guide barrel 3, an adaptation groove is horizontally provided in the adaptation groove, two second slide grooves are horizontally symmetrically provided on both sides of the adaptation groove, a negative pressure movable disk 31 is horizontally inserted in the adaptation groove, two second sliders are horizontally symmetrically provided on both sides of the negative pressure movable disk 31, and the two second sliders are symmetrically provided on both sides of the negative pressure movable disk 31. The blocks are respectively movably inserted into the two second slide grooves, and the two second slide blocks are provided with a second spring 34 on the side close to the guide barrel 3. The negative pressure movable plate 31 is located in the adaptation groove and is symmetrically provided with a plurality of open suction cups 32 on the side close to the guide barrel 3. The lower end of the side of the yielding movable plate 30 close to the guide barrel 3 is horizontally provided with a second clamping conveyor belt 45, and when the guide barrel 3 is not lowered, the second clamping conveyor belt 45 is flush with the first clamping conveyor belt 29. The yielding movable plate 30 is always controlled by the first spring 33 to be flush with the first clamping conveyor belt 29 in a natural state;

[0055] Two pulling rod grooves 35 are obliquely penetrated on one side of the negative pressure movable disk 31, and a micro-push block 36 is provided on one side of the upper end of the negative pressure movable disk 31 located at the pulling rod groove 35. The side of the micro-push block 36 close to the pulling rod groove 35 is an inclined surface, and two transmission push-pull rods 37 are symmetrically provided on both sides of the lower end of the lifting movable plate 5. One side of the lower end of the transmission push-pull rod 37 is inclined, and the inclined side of the transmission push-pull rod 37 is movably inserted into the pulling rod groove 35. A ball structure can be set in the pulling rod groove 35 to reduce the sliding wear between the transmission push-pull rod 37 and the pulling rod groove 35.

[0056] Embodiment 4

[0057] On the basis of the third embodiment, a vibration mechanism can be set in the pulling skirt ring 7 to facilitate the separation of sand from the inner surface of the barrel 3. A second annular groove 39 is horizontally opened in the pulling skirt ring 7 at the upper end of the first adapter groove 21. An electromagnetic valve 44 is connected and inserted between the first adapter groove 21 and the second annular groove 39. A plurality of air flow grooves 40 are horizontally penetrated through the pulling skirt ring 7 in the second annular groove 39. A vibration groove 41 is opened on one side of the air flow groove 40 in the pulling skirt ring 7. A biased vibration disk 42 is movably sleeved in the vibration groove 41 through a support shaft. A plurality of toggle switches are arranged on the outer peripheral side of the biased vibration disk 42. The blade 43 is moved on one side and inserted into the air flow groove 40. After the sand in the sand packaging bag is filled, the clamping state of the clamping plate 11 can be maintained for a few seconds. At this time, the solenoid valve 44 is opened, and the air pressure sent into the pressure pipe 18 is enhanced. While maintaining the stable clamping state of the clamping plate 11, the high-pressure gas enters the second annular groove 39 and is blown out from a plurality of air flow grooves 40. At this time, under the toggling action of the toggling blade 43, the eccentric vibration disk 42 rotates at a high speed. Due to the eccentric weight of the eccentric vibration disk 42, the eccentric vibration disk 42 performs high-frequency jitter to shake off the sand adhered to the inner wall of the guide barrel 3.

[0058] A method for using a sand bagging device for concrete production comprises the following steps:

[0059] Step 1: Sand is poured into the sand storage box of the sand bagging frame 1 in advance by a forklift or a conveyor, and the sand is evenly delivered to the position of the drop port 2 through the feeding platform under the sand bagging frame 1. Then the sand falls from the drop port 2 under the action of gravity, and falls into the sand packaging bag after being guided by the guide barrel 3;

[0060] Step 2: When packing sand, the unused sand packing bags are placed with their openings facing upwards on the two bag feeding platforms 28, and stably move to the position of the guide barrel 3 via the first clamping conveyor belt 29. When the sand packing bags are directly below the guide barrel 3, the lifting control rod 6 pushes the lifting movable plate 5 downwards steadily, and the guide barrel 3 descends with it under the action of its own gravity;

[0061] Step 3: As the lifting movable plate 5 descends, the lower end of the transmission push-pull rod 37 contacts the upper end inclined surface of the micro-push ejector block 36, and the transmission push-pull rod 37 pushes the negative pressure movable plate 31 to squeeze the second spring 34 and make the plurality of open suction cups 32 contact the sand packaging bag. At this time, the open suction cups 32 generate negative pressure suction to adsorb both sides of the sand packaging bag, and then the transmission push-pull rod 37 continues to descend. When the transmission push-pull rod 37 is in the position of the pulling rod groove 35, under the reverse push action of the second spring 34 and the coordinated action of the inclined structure, the lower end of the transmission push-pull rod 37 is inserted into the pulling rod groove 35, and then as the lifting movable plate 5 and the transmission push-pull rod 37 continue to descend, the negative pressure movable plate 31 pushes the yielding movable plate 30 to squeeze the first spring 33, and the bag mouth of the sand packaging bag is opened. Then, as the guiding barrel 3 of the lifting movable plate 5 continues to descend, the bag mouth has been opened to a corresponding width before the folding interface 12 enters the sand packaging bag.

[0062] Step 4: When the guide barrel 3 and the retracting interface 12 are lowered to the appropriate position, since the fixed support plate 4 is stationary, the lifting movable plate 5 drives the switching barrel 17 to move downward, so that the blocking piston 181 of the pressure delivery pipe 18 moves to the upper end of the piston groove and blocks the connection position of the first output ring 19. At this time, the pressure delivery pipe 18 delivers high-pressure gas, and the high-pressure gas enters the first adapter groove 21 through the second output ring 20 and the second air delivery pipe 24. Then the high-pressure gas enters the two pushing piston cylinders 13 to push the two arc-shaped piston rods 14, and pushes the two L-shaped turning frames 10 and the clamping plate 11 to rotate. The clamping plate 11 clamps the two sides of the sand packaging bag on both sides of the retracting interface 12 of the guide barrel 3. Before the fixed support plate 4 is not lowered to the maximum extent, the pressure delivery pipe 18 can continuously deliver low-pressure gas. At this time, the low-pressure gas cannot push the L-shaped turning frame 1 0 squeezes the return spring 16, and the low-pressure gas enters the first annular groove 25 of the folding interface 12 through the first output ring 19, the first air supply pipe 23 and the second adapter groove 22, and then blows out evenly from the blowing port 26, blowing gas into the sand packaging bag that is not fully opened, so that the inside of the sand packaging bag is expanded and full, which facilitates the insertion of the folding interface 12 into the bag mouth of the sand packaging bag. As the sand falls into the sand packaging bag through the guide barrel 3, a number of tension and pressure sensor modules 8 weigh the weight in the bag in real time. When the corresponding weight is reached, the pressure supply conduit 18 supplies air pressure for pressure relief. The L-shaped turning frame 10 and the clamping plate 11 rotate away from the guide barrel 3 under the action of the return spring 16, and the guide barrel 3 and the fixed support plate 4 are lifted. The transmission push-pull rod 37 moves out of the negative pressure movable plate 31, and the yielding movable plate 30 returns to its original position under the action of the first spring 33, waiting for the next packaging bag to move over.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand bagging device for concrete production, characterized in that: The sand bagging device for concrete production comprises: A sand bagging frame (1), wherein a sand storage box is provided on one side of the sand bagging frame (1), a feeding platform is provided horizontally at the lower end of the sand storage box, a feeding port (2) is provided at the lower end of one side of the feeding platform, a guide barrel (3) is provided at the lower end of the feeding port (2) through a lifting control component, the lifting control component comprises a lifting movable plate (5), a fixed support plate (4) is provided horizontally at the upper end of the feeding port (2), and a plurality of lifting control rods (6) are provided vertically and symmetrically at the lower end of the fixed support plate (4); A bag handling assembly, the bag handling assembly being arranged on both sides of the guide barrel (3), the bag handling assembly comprising two functional boxes (9) and two L-shaped turning frames (10), a folding interface (12) being arranged at the lower end of the guide barrel (3), a clamping plate (11) being arranged on one side of the two L-shaped turning frames (10), and during the bagging operation, the two clamping plates (11) are respectively pressed against both sides of the folding interface (12); A control switching assembly, the control switching assembly comprising two switching cylinders (17), the two switching cylinders (17) being vertically symmetrically arranged on both sides of the lower end of the lifting movable plate (5), and the two switching cylinders (17) being respectively connected to the two function boxes (9); A conveying assembly, the conveying assembly being horizontally arranged directly below the guide barrel (3), the conveying assembly comprising a horizontal conveying platform (27), two bag conveying platforms (28) and two negative pressure movable plates (31); The two function boxes (9) are each provided with an axis groove on one side, and the upper ends of the two L-shaped flip frames (10) are movably plugged into the two axis grooves through the rotation axis. Two push piston cylinders (13) are vertically symmetrically provided on one side of the upper end of the function box (9). The two L-shaped flip frames (10) are each provided with an arc-shaped piston rod (14) on one side close to the push piston cylinder (13). The two arc-shaped piston rods (14) are respectively movably plugged into the lower ends of the two push piston cylinders (13) and are provided with a push piston. The function box (9) is close to the L A curved guide rod (15) is provided on one side of the curved piston rod (14) of the L-shaped flip frame (10), one side of the curved guide rod (15) movably passes through the L-shaped flip frame (10) and is inserted into the curved piston rod (14), a functional box (9) is provided with a rebound groove on one side of the curved guide rod (15), a return spring (16) is sleeved on one side of the curved guide rod (15) placed in the rebound groove, and virtual axes of the curved guide rod (15) and the curved piston rod (14) are coaxially arranged with the rotation axis in the axis groove; The two switching cylinders (17) are respectively arranged on one side of the lifting movable plate (5) close to the function box (9), and a piston groove is provided in each of the switching cylinders (17). A pressure delivery conduit (18) is vertically provided at the lower end of the fixed support plate (4) located at the position of the switching cylinder (17). The lower end of the pressure delivery conduit (18) movably penetrates the piston groove of the lifting movable plate (5) and is plugged into the switching cylinder (17) and is provided with a blocking piston (181). The four sides of the blocking piston (181) are vertically penetrated and a plurality of bidirectional grooves (182) are provided at the upper and lower ends, and the pressure delivery conduit (18) is respectively connected to the plurality of bidirectional grooves (182). The movable length of the blocking piston (181) in the piston groove is equal to the vertical movable height of the lifting movable plate (5) and the guide barrel (3); the switching barrel (17) is located at the upper and lower sides of the piston groove and is respectively connected to a first output ring (19) and a second output ring (20); the upper and lower ends of the function box (9) are respectively horizontally provided with a first adapter groove (21) and a second adapter groove (22); one side of the first output ring (19) is connected and plugged with a first air supply pipe (23); one side of the first air supply pipe (23) is connected and plugged with a side of the second adapter groove (22); one side of the second output ring (20) is connected and plugged with a second air supply pipe (24); one side of the second air supply pipe (24) is connected and plugged with a side of the first adapter groove (21); A pulling skirt ring (7) is horizontally provided on one side of the guide barrel (3), a second annular groove (39) is horizontally provided in the pulling skirt ring (7) at the upper end of the first adapter groove (21), an electromagnetic valve (44) is connected and inserted between the first adapter groove (21) and the second annular groove (39), a plurality of air flow grooves (40) are provided in the second annular groove (39) through the pulling skirt ring (7) horizontally, a vibration groove (41) is provided on one side of the air flow groove (40) in the pulling skirt ring (7), a biased vibration disk (42) is movably sleeved in the vibration groove (41) via a support shaft, a plurality of shifting blades (43) are provided on the outer peripheral side of the biased vibration disk (42), and one side of the shifting blades (43) is inserted into the air flow groove (40).

2. A sand bagging device for concrete production according to claim 1, characterized in that: A fixed support plate (4) is horizontally provided at the upper end of the blanking port (2), a plurality of lifting control rods (6) are vertically and symmetrically provided at the lower end of the fixed support plate (4), a lifting movable plate (5) is movably sleeved on the upper end of the guide barrel (3), the lower ends of the plurality of fixed support plates (4) are respectively connected to the upper ends of the lifting movable plates (5), and a plurality of tension and compression sensor modules (8) are vertically provided at the lower end of the lifting movable plate (5) and the upper end of the pulling skirt ring (7) via bolt hangers, and the upper end of the guide barrel (3) has a diameter greater than that of the blanking port (2) and is sleeved on the lower end of the blanking port (2).

3. A sand bagging device for concrete production according to claim 2, characterized in that: The upper ends of the two pushing piston cylinders (13) on one side of the functional box (9) are respectively connected to the lower ends of the first adapter groove (21), a first annular groove (25) is provided in the folding interface (12), a plurality of blowing ports (26) are provided at the lower end of the first annular groove (25) vertically connected to the folding interface (12), and auxiliary air grooves are respectively provided on one side of the two second adapter grooves (22) and one side of the first annular groove (25).

4. A sand bagging device for concrete production according to claim 3, characterized in that: The horizontal conveying platform (27) is located directly below the guide barrel (3). A plurality of support columns are vertically and symmetrically arranged at the upper ends of both sides of the horizontal conveying platform (27). Two bag delivery platforms (28) are horizontally arranged at the upper ends of the plurality of support columns on both sides of the horizontal conveying platform (27). A bag moving area is sandwiched between the two bag delivery platforms (28). First clamping conveyor belts (29) are horizontally arranged at the upper and lower sides of the bag delivery platform (28) located at the bag moving area. When a sand packaging bag is vertically placed in the bag moving area, the four first clamping conveyor belts (29) are in compression contact with the upper ends of both sides of the sand packaging bag.

5. A sand bagging device for concrete production according to claim 4, characterized in that: The bag delivery platform (28) is provided with a clearance groove on one side close to the guide barrel (3), first slide grooves are symmetrically provided on both sides of the clearance groove, a clearance movable plate (30) is horizontally provided in the clearance groove, two first sliders are symmetrically provided on both sides of the clearance movable plate (30), the first sliders are movably inserted in the first slide groove, a first spring (33) is provided on the side of the first slider away from the guide barrel (3), an adaptation groove is horizontally provided in the adaptation groove, two second slide grooves are symmetrically provided on both sides of the adaptation groove, a negative pressure movable plate (31) is horizontally inserted in the adaptation groove, and the negative pressure movable plate (31) is horizontally inserted in the adaptation groove. 1) Two second sliders are horizontally and symmetrically arranged on both sides, and the two second sliders are movably inserted into the two second slide grooves respectively. A second spring (34) is arranged on one side of the two second sliders close to the guide barrel (3). A negative pressure movable plate (31) is located in the adaptation groove and is symmetrically provided with a plurality of open suction cups (32) on one side close to the guide barrel (3). A second clamping conveyor belt (45) is horizontally arranged on the lower end of the side of the yielding movable plate (30) close to the guide barrel (3), and when the guide barrel (3) is not lowered, the second clamping conveyor belt (45) is flush with the first clamping conveyor belt (29).

6. A sand bagging device for concrete production according to claim 5, characterized in that: One side of the negative pressure movable plate (31) is provided with two pull rod grooves (35) which are inclined and penetrated therethrough. A micro-push block (36) is provided on one side of the upper end of the negative pressure movable plate (31) located at the pull rod groove (35). A side surface of the micro-push block (36) close to the pull rod groove (35) is an inclined surface. Two transmission push-pull rods (37) are symmetrically provided on both sides of the lower end of the lifting movable plate (5). One side of the lower end of the transmission push-pull rod (37) is inclined, and the inclined side of the transmission push-pull rod (37) is movably inserted into the pull rod groove (35).

7. A method for using a sand bagging device for concrete production, characterized in that: The method for using the sand bagging device for concrete production is applied to the sand bagging device for concrete production according to claim 6, comprising the following steps: Step 1: Sand is poured into the sand storage box of the sand bagging frame (1) in advance by a forklift or a conveyor, and the sand is evenly delivered to the position of the drop opening (2) through the feeding table below the sand bagging frame (1). Then, the sand falls from the drop opening (2) under the action of gravity, and falls into the sand packaging bag after being guided by the guide barrel (3); Step 2: When packaging sand, unused sand packaging bags are placed with their openings facing upwards on two bag delivery platforms (28), and are stably moved toward the guide barrel (3) via a first clamping conveyor belt (29). When the sand packaging bags are directly below the guide barrel (3), the lifting control rod (6) pushes the lifting movable plate (5) to be steadily pressed downward, and the guide barrel (3) is lowered along with the sand packaging bags under the action of its own gravity; Step 3: As the lifting movable plate (5) descends, the lower end of the transmission push-pull rod (37) contacts the upper end inclined surface of the micro-push-pull block (36), and the transmission push-pull rod (37) pushes the negative pressure movable plate (31) to squeeze the second spring (34), and makes a plurality of open suction cups (32) contact the sand packaging bag. At this time, the open suction cups (32) generate negative pressure suction to adsorb both sides of the sand packaging bag, and then the transmission push-pull rod (37) continues to descend. When the transmission push-pull rod (37) is in the pull rod groove (35) position, the second spring (34) is pushed by the transmission push-pull rod (37). Under the reverse thrust of the spring (34) and the coordinated action of the tilting structure, the lower end of the transmission push-pull rod (37) is inserted into the pull rod groove (35), and then as the lifting movable plate (5) and the transmission push-pull rod (37) continue to descend, the negative pressure movable plate (31) pushes the yielding movable plate (30) to squeeze the first spring (33), and the bag mouth of the sand packaging bag is opened. Then, as the guide barrel (3) of the lifting movable plate (5) continues to descend, before the folding interface (12) enters the sand packaging bag, the bag mouth has been opened to a corresponding width; Step 4: When the guide barrel (3) and the retracting interface (12) are lowered to a suitable position, since the fixed support plate (4) is stationary, the lifting movable plate (5) drives the switching barrel (17) to move downward, so that the blocking piston (181) of the pressure delivery conduit (18) moves to the upper end of the piston groove and blocks the connection position of the first output ring (19). At this time, the pressure delivery conduit (18) delivers high-pressure gas, and the high-pressure gas enters the first transfer groove through the second output ring (20) and the second gas delivery pipe (24). (21), and then the high-pressure gas enters the two push piston cylinders (13) to push the two arc-shaped piston rods (14), pushing the two L-shaped flip frames (10) and the clamping plate (11) to rotate. The clamping plate (11) clamps the two sides of the sand packaging bag on the two sides of the retracting interface (12) of the guide barrel (3). Before the fixed support plate (4) is lowered to the maximum extent, the pressure delivery conduit (18) can continuously deliver low-pressure gas. At this time, the low-pressure gas cannot push the L-shaped flip frame (10 ) squeezes the return spring (16), and the low-pressure gas enters the first annular groove (25) of the collection interface (12) through the first output ring (19), the first air supply pipe (23) and the second adapter groove (22), and then blows out evenly through the blowing port (26), blowing gas into the sand packaging bag that is not fully opened, so that the inside of the sand packaging bag expands and becomes full, making it easier for the collection interface (12) to be inserted into the bag mouth of the sand packaging bag. As the sand falls into the sand packaging bag through the guide barrel (3), a plurality of tension and compression sensors are The module (8) weighs the weight in the bag in real time. When the corresponding weight is reached, the pressure delivery pipe (18) delivers air pressure to release the pressure. The L-shaped flip frame (10) and the clamping plate (11) rotate away from the guide barrel (3) under the action of the return spring (16). The guide barrel (3) and the fixed support plate (4) are lifted, and the transmission push-pull rod (37) moves out of the negative pressure movable plate (31). The movable plate (30) returns to its original position under the action of the first spring (33) and waits for the next packaging bag to move over.

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