An exhaust system for producing bagged dry powder mortar

Abstract

This utility model relates to the field of venting technology for packaging bags, and discloses a venting assembly for the production of bagged dry powder mortar. The assembly includes a frame, a conveyor belt on the upper side of the frame, a cover on the upper side of the conveyor belt, a cylinder on the upper side of the cover, a crossbar fixedly connected to the top of the cylinder, a negative pressure unit on the upper side of the crossbar, and drive mechanisms at both ends of the crossbar. Supports are slidably connected to the drive mechanisms, with the two supports located on opposite sides of the conveyor belt. This utility model, through the frame, supports, conveyor belt, crossbar, cylinder, cover, drive mechanism, and negative pressure unit, solves the problems of limited contact area between the roller and the packaging bag in existing technologies, making it difficult to ensure comprehensive and uniform venting, poor adaptability to packaging bags of different thicknesses and materials, and potential localized damage to the packaging bag due to uneven rolling pressure.

Description

Technical Field

[0001] This utility model relates to the field of venting technology for packaging bags, and in particular to a venting component for the production of bagged dry powder mortar. Background Technology

[0002] Dry mortar, also known as dry mortar powder, dry-mixed mortar, or dry-mixed powder, refers to a granular or powdery material made by physically mixing aggregates (such as quartz sand), inorganic cementitious materials (such as cement), and additives (such as polymers) in a certain proportion after drying and screening. It is transported to the construction site in bagged or bulk form and can be used directly after being mixed with water.

[0003] A search revealed Chinese Patent Publication No. CN221795191U, which discloses a venting device for mortar after bagging. The device includes a frame, a conveying mechanism, and a venting mechanism mounted on the frame. The venting mechanism comprises a U-shaped support frame, connecting plates, a roller shaft, a venting roller, and diagonal bracing plates. The U-shaped support frame is fixed to the frame, with connecting plates hinged to both ends. The roller shaft is installed between the two connecting plates. The venting roller is rotatably mounted on the roller shaft and spans above the conveying mechanism. An adjustment slot is provided on the connecting plate. One end of the diagonal bracing plate is fixed in the adjustment slot by fastening bolts, and the other end is hinged to the U-shaped support frame. This invention features a simple structure, convenient operation, and low cost. As the packaging bag moves along with the conveying mechanism and passes under the venting roller, the venting roller discharges the gas from the packaging bag by rolling it, thereby improving the venting efficiency and ensuring the venting quality of the packaging bag.

[0004] However, in actual use, the contact area between the roller and the packaging bag is limited, making it difficult to ensure complete and uniform air exhaust. It is not very adaptable to packaging bags of different thicknesses and materials, and may cause local damage to the packaging bag due to uneven rolling pressure. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an exhaust component for the production of bagged dry powder mortar, which aims to solve the problems of the limited contact area between the roller and the packaging bag in the prior art, making it difficult to ensure comprehensive and uniform exhaust, poor adaptability to packaging bags of different thicknesses and materials, and the possibility of local damage to the packaging bag due to uneven rolling pressure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an exhaust assembly for the production of bagged dry powder mortar, comprising a frame, a conveyor belt on the upper side of the frame, a cover on the upper side of the conveyor belt, a cylinder on the upper side of the cover, a crossbar fixedly connected to the top of the cylinder, a negative pressure machine on the upper side of the crossbar, the output end of the negative pressure machine fixedly mounted on the side wall of the cover, a drive mechanism on both ends of the crossbar, a support frame slidably connected to the drive mechanism, the lower sides of the two supports being fixedly connected to the frame, and the two supports being located on both sides of the conveyor belt respectively.

[0007] The above technical solution involves moving the dry mortar bag to the bottom of the cover via a conveyor belt, driving the conveyor belt downwards through the output end of a cylinder to cover the dry mortar bag, and then using a negative pressure machine to extract the air from inside the cover, thereby achieving the degassing of the dry mortar bag.

[0008] As a further description of the above technical solution:

[0009] The driving mechanism includes a driving component and a rack. The rack is disposed on the side wall between two supports. The rack and the driving component are meshed together. One side of the driving component is disposed on the crossbeam. A groove is provided on the side wall between the two supports. The driving component is slidably connected inside the groove.

[0010] The above technical solution achieves the function of moving the crossbeam forward and backward by means of the meshing connection between the drive mechanism and the rack, so that the driving force of the drive mechanism acts on itself and drives the crossbeam to move.

[0011] As a further description of the above technical solution:

[0012] The drive assembly includes a motor, which is mounted on the side wall of the crossbeam. A gear is fixedly mounted on the output end of the motor, and the tooth end of the gear meshes with the tooth end of the rack. A roller is rotatably connected to the lower side of the crossbeam, and the roller is in contact with the inner bottom wall of the first groove. A pulley is mounted on the upper side of the crossbeam, and the upper side of the pulley is in contact with the inner top wall of the first groove.

[0013] The above technical solution involves driving a motor to rotate a gear, which in turn moves the motor through the meshing of the gear and rack, thereby moving the crossbeam. When venting the dry mortar bag on the conveyor belt, the crossbeam and the conveyor belt move in the same direction and at the same speed, thus achieving the function of venting the conveyor belt without stopping the machine.

[0014] As a further description of the above technical solution:

[0015] The support frame has a second groove, which is located on the inner bottom wall of the first groove. The lower outer wall of the roller is in contact with the inner wall of the second groove.

[0016] The above technical solution ensures that the rollers roll in the second groove, preventing the crossbeam from shifting during movement and improving the operational stability of the component.

[0017] As a further description of the above technical solution:

[0018] A second cylinder is provided on the upper side of the cover. A pressure plate is fixedly provided at the output end of the second cylinder. The pressure plate is located inside the cover, and the side wall of the pressure plate is slidably connected to the inner side wall of the cover. A pressure sensor is provided on the lower side of the pressure plate.

[0019] The above technical solution involves the following: when the cover covers the dry mortar bag, the pressure plate moves downward through the output end of the cylinder two, applying pressure to the dry mortar bag to expel the gas inside. Then, the gas is extracted by a negative pressure machine, which helps to improve the exhaust efficiency of the component.

[0020] As a further description of the above technical solution:

[0021] An obstruction sensor is provided on the lower side of the support frame near the side wall of the cover, and a sealing strip is provided on the lower side of the cover.

[0022] The above technical solution involves using a shielding sensor to determine the location of the dry mortar bag, then covering it with a cover, and using a sealing strip and conveyor belt to create a sealed environment inside the cover, which helps improve the efficiency of the negative pressure pump.

[0023] As a further description of the above technical solution:

[0024] The output end of the negative pressure machine is fixedly equipped with an air extraction pipe, and the lower end of the air extraction pipe is fixedly installed on the lower side wall of the cover.

[0025] The above technical solution, by setting the lower end of the air extraction pipe on the lower side wall of the cover, ensures that the air extraction operation of the negative pressure machine and the downward pressing action of the pressure plate do not interfere with each other, thereby improving the rationality of the component.

[0026] As a further description of the above technical solution:

[0027] A controller is installed on one side of the frame. The controller is electrically connected to the motor, negative pressure machine, obstruction sensor, conveyor belt, cylinder one, cylinder two, and pressure sensor.

[0028] The above technical solution achieves intelligent automation of the component through the cooperation between the controller, motor, negative pressure machine, obstruction sensor, conveyor belt, cylinder one, cylinder two and pressure sensor.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, the frame provides support for the support frame and conveyor belt, which in turn provides support for the cross frame. The conveyor belt drives the dry mortar bag to move, and the cylinder output drives the cover to descend and cover it. The drive mechanism makes the cross frame and the dry mortar bag move at the same speed and in the same direction. Then, the negative pressure machine extracts the air from inside the cover, thus solving the problems of the limited contact area between the roller and the packaging bag in the prior art, making it difficult to ensure full and uniform exhaust, poor adaptability to packaging bags of different thicknesses and materials, and the possibility of local damage to the packaging bag due to uneven rolling pressure.

[0031] 2. In this utility model, the pressure plate and the cover are slidably connected by the output end of the cylinder, which drives the pressure plate to descend and squeeze the dry mortar bag. The pressure of the pressure plate and the dry mortar bag is kept within a suitable range by the controller and pressure sensor, thereby improving the exhaust efficiency of the component. Attached Figure Description

[0032] Figure 1 This is a side perspective structural diagram of an exhaust assembly for producing bagged dry powder mortar according to the present invention.

[0033] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0034] Figure 3 This is a frontal three-dimensional structural diagram of an exhaust assembly for producing bagged dry powder mortar according to the present invention.

[0035] Figure 4 This is a schematic cross-sectional view of the hood structure of an exhaust assembly for producing bagged dry powder mortar, as proposed in this utility model.

[0036] Legend:

[0037] 1. Frame; 2. Support frame; 3. Groove 1; 4. Groove 2; 5. Drive mechanism; 50. Drive assembly; 500. Gear; 501. Motor; 502. Roller; 503. Pulley; 51. Rack; 6. Negative pressure unit; 7. Horizontal frame; 8. Obstruction sensor; 9. Conveyor belt; 10. Cover; 11. Controller; 12. Air extraction pipe; 13. Cylinder 1; 14. Cylinder 2; 15. Pressure plate; 16. Pressure sensor; 17. Sealing strip. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Reference Figure 1 and Figure 3 An embodiment of this utility model provides an exhaust assembly for the production of bagged dry powder mortar, including a frame 1, a conveyor belt 9 on the upper side of the frame 1, a cover 10 on the upper side of the conveyor belt 9, a cylinder 13 on the upper side of the cover 10, a crossbar 7 fixedly connected to the top of the cylinder 13, a negative pressure machine 6 on the upper side of the crossbar 7, the output end of the negative pressure machine 6 fixedly installed on the side wall of the cover 10, a drive mechanism 5 on both ends of the crossbar 7, a support 2 slidably connected to the drive mechanism 5, the lower sides of the two support 2 fixedly connected to the frame 1, and the two support 2 respectively located on both sides of the conveyor belt 9;

[0040] In this embodiment, Figure 2 The front, back, left, and right are the directions. The negative pressure machine 6 is used to extract the air inside the cover 10, and the conveyor belt 9 is used to transport objects. All of the above are existing technologies.

[0041] Specifically, when using this component, the frame 1 provides support for the support frame 2 and the conveyor belt 9, which in turn provides support for the cross frame 7. The cross frame 7 then provides support for the cylinder 13, which in turn provides support for the cover 10. When the conveyor belt 9 moves the dry mortar bag between the two support frames 2, the drive mechanism 5 is horizontally slidably connected to the support frame 2, causing the drive mechanism 5 to move horizontally. The connection between the drive mechanism 5 and the cross frame 7 moves the drive mechanism 5 to the side closer to the dry mortar bag. The output of the cylinder 13 then drives the cover 10. The roller descends and covers the dry mortar bag. During this process, the crossbeam 7 and the dry mortar bag move in the same direction and at the same speed. Then, by starting the negative pressure machine 6, the air inside the cover 10 is extracted. Then, driven by the output end of cylinder 13, the cover 10 is driven to rise and waits for the next air extraction operation by the drive mechanism 5. This solves the problems of the existing technology where the contact area between the roller and the packaging bag is limited, making it difficult to ensure comprehensive and uniform exhaust, and the poor adaptability to packaging bags of different thicknesses and materials. It also solves the problem that uneven rolling pressure may cause local damage to the packaging bag.

[0042] Reference Figure 1 and Figure 3The drive mechanism 5 includes a drive assembly 50 and a rack 51. The rack 51 is disposed on the side wall between the two supports 2. The rack 51 and the drive assembly 50 are meshed and connected. One side of the drive assembly 50 is disposed on the cross frame 7. A groove 3 is provided on the side wall between the two supports 2. The drive assembly 50 is slidably connected inside the groove 3.

[0043] Specifically, through the driving of the drive component 50 and the meshing connection between the drive component 50 and the rack 51, the power of the drive component 50 acts on itself. Through the sliding connection between the drive component 50 and the groove 3, the drive component 50 can move back and forth on the groove 3. Through the connection between the drive component 50 and the cross frame 7, the cross frame 7 is driven to move back and forth between the two supports 2, thereby helping to realize the air venting operation of the dry powder mortar bag during the movement process.

[0044] Reference Figure 1 , Figure 2 and Figure 3 The drive assembly 50 includes a motor 501, which is mounted on the side wall of the cross frame 7. A gear 500 is fixedly mounted on the output end of the motor 501. The tooth end of the gear 500 meshes with the tooth end of the rack 51. A roller 502 is rotatably connected to the lower side of the cross frame 7. The roller 502 is in contact with the inner bottom wall of the groove 3. A pulley 503 is mounted on the upper side of the cross frame 7. The upper side of the pulley 503 is in contact with the inner top wall of the groove 3.

[0045] Specifically, the output of motor 501 drives gear 500 to rotate. Through the meshing connection between gear 500 and rack 51, and the fixed connection between rack 51 and support frame 2, the reaction force of gear 500 rotation drives motor 501 to move. Through the contact between roller 502 and groove 3, roller 502 rolls inside groove 3. Through the connection between motor 501 and cross frame 7, the cross frame 7 moves back and forth. When the output of cylinder 13 drives cover 10 to press against conveyor belt 9, the reaction force causes cross frame 7 to move upward. Through the contact between pulley 503 and the inner top wall of groove 3, this reaction force is offset, thus realizing the exhaust function of conveyor belt 9 without stopping.

[0046] Reference Figure 1 and Figure 2 The support frame 2 has a groove 2 4, which is located on the inner bottom wall of the groove 1 3. The lower outer wall of the roller 502 is in contact with the inner wall of the groove 2 4.

[0047] Specifically, when the crossbeam 7 moves back and forth, the lower side of the roller 502 rolls inside the groove 2 4. Through the interference between the side wall of the roller 502 and the inner side wall of the groove 2 4, the roller 502 rolls along the direction of the groove 2 4, which prevents the roller 502 from sliding out of the groove 1 3 during the rolling process, thereby improving the stability of the crossbeam 7 moving back and forth.

[0048] Reference Figure 3 and Figure 4 A cylinder 14 is provided on the upper side of the cover 10. A pressure plate 15 is fixedly provided at the output end of the cylinder 14. The pressure plate 15 is located inside the cover 10, and the side wall of the pressure plate 15 is slidably connected to the inner side wall of the cover 10. A pressure sensor 16 is provided on the lower side of the pressure plate 15.

[0049] Specifically, after the cover 10 covers the dry mortar bag, the pressure plate 15 and the cover 10 are slidably connected by the output end of the cylinder 2 14, causing the pressure plate 15 to move downward and squeeze the dry mortar bag, so that the air inside the dry mortar bag is discharged. The pressure sensor 16 keeps the pressure of the pressure plate 15 on the dry mortar bag within a suitable range, thereby improving the exhaust efficiency of the component.

[0050] Reference Figure 1 and Figure 4 A shielding sensor 8 is provided on the lower side of the support frame 2 near the side wall of the cover 10, and a sealing strip 17 is provided on the lower side of the cover 10.

[0051] Specifically, when the shielding sensor 8 detects the dry mortar bag, the crossbeam 7 moves to a position close to the dry mortar bag and begins the venting operation, which helps to realize the automated sensing and venting of the dry mortar bag, and the sealing strip 17 and the upper side of the conveyor belt 9 help to improve the sealing of the inside of the cover 10.

[0052] Reference Figure 3 The output end of the negative pressure machine 6 is fixedly equipped with an air extraction pipe 12, and the lower end of the air extraction pipe 12 is fixedly installed on the lower side wall of the cover 10.

[0053] Specifically, after the cover 10 covers the dry mortar bag and presses it down with the pressure plate 15, the lower end of the exhaust pipe 12 is located between the conveyor belt 9 and the pressure plate 15. When the negative pressure machine 6 is started, the air inside the cover 10 is extracted through the exhaust pipe 12, thereby realizing the exhaust of the dry mortar bag.

[0054] Reference Figure 1 , Figure 3 and Figure 4 A controller 11 is installed on one side of the frame 1. The controller 11 is electrically connected to the motor 501, the negative pressure machine 6, the obstruction sensor 8, the conveyor belt 9, the cylinder 13, the cylinder 2 14, and the pressure sensor 16.

[0055] Specifically, the controller 11 can use a programmable PLC controller, which is existing technology. The controller 11 controls the start and conveying speed of the conveyor belt 9. When the dry mortar bag moves to one side of the support frame 2, the obstruction sensor 8 transmits a signal to the controller 11. The controller 11 controls the motor 501 to start, driving the cross frame 7 to move closer to the dry mortar bag. The controller 11 controls the cylinder 13 to drive the cover 10 to descend and cover the dry mortar bag. During this process, the controller 11 controls the motor 501 to keep the cross frame 7 and the dry mortar bag moving at the same speed and in the same direction. The controller 11 controls the cylinder 14 to make the pressure plate 15 move down to squeeze the dry mortar bag. The pressure sensor 16 transmits a signal to the controller 11 to keep the pressure between the pressure plate 15 and the dry mortar bag within a suitable range. The controller 11 controls the negative pressure machine 6 to start, extracting the air from inside the cover 10, thereby realizing the intelligent automation of this component.

[0056] Working principle: When using this component, the start and conveying speed of the conveyor belt 9 are controlled by the controller 11. When the dry mortar bag moves to one side of the support frame 2, the obstruction sensor 8 transmits a signal to the controller 11. The controller 11 controls the output of the motor 501 to drive the gear 500 to rotate. Through the meshing connection between the gear 500 and the rack 51, the gear 500 moves back and forth, thereby driving the cross frame 7 to move back and forth and move to a position close to the dry mortar bag, thus realizing the function of moving the cross frame 7.

[0057] Controlled by controller 11 and driven by the output of cylinder 13, the cover 10 is lowered to cover the dry mortar bag. During this process, controller 11 controls the drive of motor 501 to keep the crossbeam 7 and the dry mortar bag moving at the same speed and in the same direction. Then, driven by the output of cylinder 14, the pressure plate 15 moves down to squeeze the dry mortar bag, and the pressure sensor 16 transmits the signal to controller 11 to keep the pressure between the pressure plate 15 and the dry mortar bag within a suitable range. Controller 11 controls the negative pressure machine 6 to start and extract the air from inside the cover 10. Finally, driven by the output of cylinder 13, the cover 10 is raised and driven by drive mechanism 5 to prepare for the next air extraction operation. This solves the problems of the limited contact area between the roller and the packaging bag in the existing technology, which makes it difficult to ensure comprehensive and uniform air extraction, has poor adaptability to packaging bags of different thicknesses and materials, and may cause local damage to the packaging bag due to uneven rolling pressure.

[0058] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A venting assembly for the production of dry-mix mortar in bags, comprising a frame (1), characterized in that: A conveyor belt (9) is provided on the upper side of the frame (1), a cover (10) is provided on the upper side of the conveyor belt (9), a cylinder (13) is provided on the upper side of the cover (10), a cross frame (7) is fixedly connected to the top of the cylinder (13), a negative pressure machine (6) is provided on the upper side of the cross frame (7), the output end of the negative pressure machine (6) is fixedly set on the side wall of the cover (10), a drive mechanism (5) is provided at both ends of the cross frame (7), a support frame (2) is slidably connected on the drive mechanism (5), the lower sides of the two supports (2) are fixedly connected to the frame (1), and the two supports (2) are located on both sides of the conveyor belt (9).

2. The exhaust assembly for producing a dry-mixed mortar in a bag according to claim 1, characterized in that: The drive mechanism (5) includes a drive assembly (50) and a rack (51). The rack (51) is disposed on the side wall between two supports (2). The rack (51) and the drive assembly (50) are meshed together. One side of the drive assembly (50) is disposed on the crossbeam (7). A groove (3) is provided on the side wall between the two supports (2). The drive assembly (50) is slidably connected inside the groove (3).

3. The exhaust assembly for producing bagged dry powder mortar according to claim 2, characterized in that: The drive assembly (50) includes a motor (501), which is mounted on the side wall of the cross frame (7). A gear (500) is fixedly mounted on the output end of the motor (501). The tooth end of the gear (500) meshes with the tooth end of the rack (51). A roller (502) is rotatably connected to the lower side of the cross frame (7). The roller (502) is in contact with the inner bottom wall of the groove (3). A pulley (503) is mounted on the upper side of the cross frame (7). The upper side of the pulley (503) is in contact with the inner top wall of the groove (3).

4. The exhaust assembly for producing bagged dry powder mortar according to claim 3, characterized in that: The support frame (2) has a second groove (4), which is located on the inner bottom wall of the first groove (3). The lower outer wall of the roller (502) is in contact with the inner wall of the second groove (4).

5. The exhaust assembly for producing bagged dry powder mortar according to claim 1, characterized in that: A cylinder 2 (14) is provided on the upper side of the cover (10). A pressure plate (15) is fixedly provided at the output end of the cylinder 2 (14). The pressure plate (15) is located inside the cover (10), and the side wall of the pressure plate (15) is slidably connected to the inner side wall of the cover (10). A pressure sensor (16) is provided on the lower side of the pressure plate (15).

6. The exhaust assembly for producing bagged dry powder mortar according to claim 1, characterized in that: The support frame (2) is provided with a shielding sensor (8) on the lower side of the side wall near the cover (10), and a sealing strip (17) is provided on the lower side of the cover (10).

7. The exhaust assembly for producing bagged dry powder mortar according to claim 1, characterized in that: The output end of the negative pressure machine (6) is fixedly provided with an air extraction pipe (12), and the lower end of the air extraction pipe (12) is fixedly provided on the lower side wall of the cover (10).

8. The exhaust assembly for producing bagged dry powder mortar according to claim 1, characterized in that: A controller (11) is provided on one side of the frame (1). The controller (11) is electrically connected to the motor (501), the negative pressure machine (6), the occlusion sensor (8), the conveyor belt (9), the cylinder one (13), the cylinder two (14), and the pressure sensor (16).

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