Rotary cement packaging machine

Abstract

The utility model relates to the technical field of cement packaging machines, in particular to a rotary cement packaging machine which comprises a base, a rotary main shaft and a hopper arranged on the rotary main shaft, a plurality of material distribution bins are arranged on the hopper, a discharging port of each material distribution bin is connected with an ash discharging mechanism, and the discharging end of each ash discharging mechanism is connected with an ash discharging nozzle. The ash discharging mechanism is further connected with a bagging frame, a bag pushing air cylinder and a bag pushing plate are arranged on the bagging frame, a material collecting cone is arranged on the base, a plurality of material guiding pipes corresponding to the material distributing bins are arranged on the material collecting cone, and ash receiving openings are formed in the material guiding pipes; the dust receiving hopper is connected to the bag pushing plate; when the bag pushing plate rotates outwards, the ash receiving hopper is driven to move to the lower side of the ash outlet nozzle, when the bag pushing plate retracts, the ash receiving hopper is driven to retract synchronously, the rear end of the ash receiving hopper is inserted into the ash receiving opening, and powder in the ash receiving hopper is poured into the material guiding pipe through the ash receiving opening. According to the powder recycling device, residual powder can be automatically recycled to the material guiding pipe after the bag pushing plate pushes bags, dust leakage and material waste are remarkably reduced, and the cleanliness of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of cement packaging machine technology, specifically a rotary cement packaging machine. Background Technology

[0002] A rotary cement packaging machine is a packaging device for cement or similar powdery materials. It has multiple filling units that can quantitatively fill cement or similar powdery materials into self-sealing packaging bags. Each unit can rotate horizontally around the same axis, which can greatly improve the packaging efficiency of cement, reduce manual operation and labor intensity, reduce cement waste and loss, and provide enterprises with better production efficiency and competitiveness.

[0003] In the prior art, such as the novel eight-nozzle rotary cement packaging machine described in application number CN201620762960.6, a motor, a fixed frame, a belt tray, a metering device, and a frame are included. The fixed frame is located below the motor, a transmission belt is located above the frame, a belt presser is located on one side of the transmission belt, a conveyor drum is located below the belt presser, a material conveying hopper is located below the conveyor drum, and a discharge pipe is located below the material conveying hopper. While the prior art solves the problem of low efficiency in traditional intermittent packaging, significant technical defects still exist in practical applications: when the filled valve bag detaches from the discharge pipe, residual powder in the discharge pipe leaks from the discharge nozzle. This leakage not only represents material loss but also causes environmental pollution, leading to excessive dust concentration in the working environment. Furthermore, the scattered powder can contaminate the equipment's transmission mechanism, accelerating mechanical wear. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rotary cement packaging machine that can recover residual powder leaked at the discharge nozzle.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A rotary cement packaging machine includes a base and a rotating main shaft rotatably connected to the base. A hopper is mounted on the rotating main shaft, and several distribution bins are spaced circumferentially around the hopper. The discharge ports of the distribution bins are connected to a dust discharge mechanism, and the discharge end of the dust discharge mechanism is connected to a dust discharge nozzle. A bagging frame is also connected to the dust discharge mechanism, and a pusher plate is hinged to the bagging frame. A pusher cylinder connected to the pusher plate is also mounted on the bagging frame. A receiving cone is mounted on the base, and a guide pipe is provided on the upper side of the receiving cone corresponding to each distribution bin. The guide pipe has a dust collection port. The machine also includes a dust collection hopper, the front end of which is connected to the pusher plate. When the pusher cylinder drives the pusher plate to rotate outward, it moves the dust collection hopper to the lower side of the dust discharge nozzle. When the pusher cylinder drives the pusher plate to retract, the pusher plate moves the dust collection hopper back synchronously. The rear end of the dust collection hopper is inserted into the dust collection port, and the powder in the dust collection hopper is poured into the guide pipe through the dust collection port.

[0007] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:

[0008] This invention addresses the technical pain point of residual powder leakage from the ash outlet during bag changing in existing rotary cement packaging machines. It innovatively proposes a linked recovery mechanism between the push plate and the ash hopper. The core of this mechanism lies in the automatic collection and recovery of residual powder through mechanical linkage. After the push plate pushes the bag, the residual powder is automatically recovered to the feed pipe, significantly reducing dust leakage and material waste. Simultaneously, it improves equipment cleanliness and prevents dust from entering the equipment's transmission mechanism. The linked recovery mechanism seamlessly integrates with the production cycle, with the ash hopper's movement synchronized with the push plate's drive cylinder. No additional power source or control program is required. While maintaining the original packaging efficiency, it adds a recovery function, meeting the cement industry's dual demands for "high output and low emissions."

[0009] As a preferred embodiment, a further technical solution of this utility model is:

[0010] Preferably, the ash receiving hopper is inclined downward from front to back. The ash receiving hopper includes a support plate and side plates on both sides of the support plate. A connecting seat is provided at the bottom of the support plate. The connecting seat is provided with an elongated hole and also includes a connecting bolt. The connecting bolt passes through the elongated hole and is bolted and fixed to the push plate.

[0011] Preferably, the ash receiving hopper is provided with a clearance slot on the side near the pusher plate to avoid the valve bag; the clearance slot on the tray effectively prevents the ash receiving hopper from rubbing or colliding with the edge of the valve bag, protecting the integrity of the packaging bag, while ensuring that the residual powder falls completely into the ash receiving hopper.

[0012] Preferably, the side plate has a trapezoidal structure; this can reduce the distance between the upper edge of the push plate and the ash discharge pipe during the design process. When the push plate drives the ash hopper to retract, the side plate will not conflict with the ash discharge pipe, and the overall structure is more compact.

[0013] Preferably, a rotating connecting cylinder is provided in the middle of the base, and several adjusting bolts are arranged circumferentially on the rotating connecting cylinder. A central shaft is inserted into the rotating connecting cylinder, and the ends of the adjusting bolts abut against the outer wall of the central shaft. A rotating spindle is connected to the central shaft through a bearing. By using the design of the rotating connecting cylinder and the adjusting bolts in conjunction with the central shaft, the coaxiality of the rotating spindle can be finely adjusted, reducing wear caused by spindle runout and extending the service life of the equipment.

[0014] Preferably, a negative pressure pipe for outward discharge is connected to the side wall of the receiving cone; the negative pressure pipe is added to the side wall of the receiving cone for connecting to a negative pressure conveying system.

[0015] Preferably, it also includes a cover connected to the rotating spindle. The cover is located on the upper side of the receiving cone. A connecting through hole is provided on the cover for each guide tube. The guide tube is connected to the cover through a flange connecting plate. The lower end of the guide tube extends into the receiving cone through the connecting through hole. The cover fixes the guide tube through the flange connecting plate to ensure that the guide tube is installed firmly and has good sealing performance, preventing powder from leaking from the connection point, and facilitating disassembly and maintenance.

[0016] Preferably, the discharge valve includes a first clamping plate connected to the ash outlet, a second clamping plate connected to the first clamping plate, and a gate plate slidably inserted between the first clamping plate and the second clamping plate; a drive cylinder is connected to the ash hopper, and the output end of the drive cylinder is connected to the gate plate; the gate plate structure driven by the drive cylinder controls the opening and closing of the ash outlet, which has fast action response, strong sealing performance, and precise control of powder flow, avoiding valve jamming or ash leakage. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the rotary cement packaging machine in this embodiment of the utility model;

[0018] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0019] Figure 3 This is a schematic diagram of the connection structure between the pusher plate and the pusher cylinder in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the pusher plate retracting in an embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the push-pack plate moving outward to open in an embodiment of this utility model;

[0022] Figure 6 This is a schematic diagram of the connection structure of the rotating connecting cylinder in an embodiment of this utility model;

[0023] Figure 7 This is a side view of the ash hopper in an embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram of the other side of the ash hopper in an embodiment of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Base; 2. Rotating spindle; 3. Hopper; 4. Distributing bin; 5. Ash discharge mechanism; 6. Ash discharge nozzle; 7. Bag packing frame; 8. Pushing plate; 9. Receiving cone; 10. Guide pipe; 11. Negative pressure pipe; 12. Ash receiving hopper; 13. Pushing cylinder; 14. Umbrella cover; 15. Flange connecting plate; 16. Limiting baffle; 17. Rotating connecting cylinder; 18. Adjusting bolt; 19. Central shaft; 20. Bearing; 21. Connecting seat; 501. Ash discharge hopper; 502. First clamping plate; 503. Gate plate; 504. Drive cylinder; 505. Ash discharge pipe; 1201. Support plate; 1202. Side plate; 1203. Clearance groove; 2101. Long hole. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments. The purpose of this description is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0027] like Figures 1 to 8 As shown, this embodiment provides a rotary cement packaging machine, including a base 1 and a rotating main shaft 2 rotatably connected to the base 1. A hopper 3 is mounted on the rotating main shaft 2, and several distribution bins 4 are spaced circumferentially around the hopper 3. The discharge ports of the distribution bins 4 are connected to a dust discharge mechanism 5, and the discharge end of the dust discharge mechanism 5 is connected to a dust discharge nozzle 6. A bagging frame 7 is also connected to the dust discharge mechanism 5. The dust discharge mechanism 5 includes a dust discharge hopper 501 connected to the discharge port, and a rotating impeller is installed inside the dust discharge hopper 501. A discharge valve is installed at the ash outlet, and the discharge end of the discharge valve is connected to an ash discharge pipe 505. An ash discharge nozzle 6 is connected to the ash discharge pipe 505. A bagging frame 7 is specifically connected to the ash discharge pipe 505. A pusher plate 8 is hinged to the bagging frame 7, and a pusher cylinder 13 connected to the pusher plate 8 is also installed on the bagging frame 7. A receiving cone 9 is installed on the base 1, and a guide pipe 10 is provided on the upper side of the receiving cone 9 corresponding to each material distribution bin 4. The guide pipe 10 is provided with an ash receiving port. It also includes an ash receiving hopper 12, the front end of which is connected to the pusher plate 8. In addition, a negative pressure pipe 11 for outward discharge is also connected to the side wall of the receiving cone 9.

[0028] The ash hopper 12 is inclined downward from front to back, with an inclination angle preferably of 30°-60°. The ash hopper 12 includes a support plate 1201 and side plates 1202 arranged on both sides of the support plate 1201. A connecting seat 21 is provided at the bottom of the support plate 1201. The connecting seat 21 is provided with an elongated hole 2101 and also includes a connecting bolt. The connecting bolt passes through the elongated hole 2101 and is bolted and fixed to the push plate 8.

[0029] In operation, when the pusher cylinder 13 drives the pusher plate 8 to rotate, the pusher plate 8 simultaneously drives the ash hopper 12 to move outward, moving to the lower side of the ash outlet 6 to collect residual powder leaking from the outlet. When the pusher cylinder 13 drives the pusher plate 8 to retract, the pusher plate 8 drives the ash hopper 12 to retract simultaneously, and the rear end of the ash hopper 12 inserts into the ash receiving port, pouring the powder in the ash hopper 12 into the guide pipe 10. The powder is collected in the receiving cone 9 through the guide pipe 10. The negative pressure pipe 11 is connected to the external negative pressure conveying system, forming a stable negative pressure environment inside the receiving cone 9. This negative pressure field effectively captures floating cement dust and directs it to the dust removal system through the negative pressure pipe 11. A discharge pipe is configured at the bottom of the receiving cone 9 for centralized discharge of settled agglomerated powder, achieving gas-solid two-phase separation recycling. The powder recovery system formed by the ash hopper 12 and the guide pipe 10 can effectively recover residual powder leaking from the discharge nozzle, improve material utilization, reduce environmental pollution, avoid contaminating the equipment transmission mechanism, and reduce mechanical wear. Meanwhile, for powders with different flowability (such as slag powder having lower flowability than ordinary cement), the inclination angle of the ash hopper 12 can be adjusted through the elongated hole 2101 to promote powder sliding.

[0030] like Figure 7 To prevent the ash hopper 12 from rubbing or colliding with the edge of the valve bag when it moves outward, a clearance groove 1203 is provided on the side of the ash hopper 12 near the push plate 8 to avoid the valve bag.

[0031] Furthermore, limiting baffles 16 are provided on both sides of the ash inlet on the feed pipe 10. The two limiting baffles 16 form a guide channel to ensure that the ash hopper 12 can be accurately aligned with the ash inlet when it retracts. This achieves mechanical self-correction, allowing the ash hopper 12 to move only along the path defined by the limiting baffles 16, reducing the dependence on the positioning accuracy of the pusher cylinder 13. At the same time, the limiting baffles 16 and the trapezoidal side plates 1202 of the ash hopper 12 form a nested structure to prevent the powder from overflowing from the side during the pouring process.

[0032] like Figure 7 , Figure 8 As shown, the side plate 1202 of the ash hopper 12 has a trapezoidal structure; the distance between the upper edge of the push plate 8 and the ash discharge pipe 505 can be reduced during the design. When the push plate 8 drives the ash hopper 12 to retract, the side plate 1202 will not conflict with the ash discharge pipe 505, and the overall structure is more compact.

[0033] A cover 14 is connected to the lower end of the rotating spindle 2. The cover 14 is located on the upper side of the receiving cone 9 and can rotate with the rotating spindle 2. A connecting through hole is provided on the cover 14 for each guide tube 10. The guide tube 10 is connected to the cover 14 through the flange connecting plate 15. The lower end of the guide tube 10 extends into the receiving cone 9 through the connecting through hole. The cover 14 fixes the guide tube 10 through the flange connecting plate 15 to ensure that the guide tube 10 is installed firmly and has good sealing performance, preventing powder from leaking from the connection point, and facilitating disassembly and maintenance.

[0034] A rotating connecting cylinder 17 is provided in the middle of the base 1. Several adjusting bolts 18 are arranged circumferentially on the rotating connecting cylinder 17. A central shaft 19 is inserted into the rotating connecting cylinder 17. The ends of the adjusting bolts 18 abut against the outer wall of the central shaft 19. Since the lower end of the rotating spindle 2 is connected to the umbrella cover 14, and a rotating sleeve is provided at the center of the umbrella cover 14, the rotating sleeve is connected to the central shaft 19 through the bearing 20. When the rotating spindle 2 rotates, the umbrella cover 14 and the rotating sleeve rotate synchronously. By rotating the adjusting bolts 18, the coaxiality of the rotating spindle 2 can be finely adjusted, reducing the wear caused by spindle runout and extending the service life of the equipment.

[0035] The discharge valve includes a first clamping plate 502 connected to the ash outlet, a second clamping plate connected to the first clamping plate 502, and a gate 503 slidably inserted between the first clamping plate 502 and the second clamping plate. To ensure that the gate 503 slides smoothly and does not deviate, a sliding groove for sliding the gate 503 is also provided on the first clamping plate 502. A drive cylinder 504 is connected to the ash hopper 501, and the output end of the drive cylinder 504 is connected to the gate 503. The gate 503 structure driven by the drive cylinder 504 controls the opening and closing of the ash outlet, with fast action response, strong sealing, and precise control of powder flow, avoiding valve jamming or ash leakage.

[0036] This utility model overcomes the long-standing problem of residual powder leakage in rotary packaging machines through mechanical linkage innovation. Its technical solution combines environmental compliance, economy and reliability, and is especially suitable for the upgrading needs of cement enterprises in environmentally strictly controlled areas such as Beijing.

[0037] The above description is merely a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A rotary cement packaging machine, comprising a base (1) and a rotating main shaft (2) rotatably connected to the base (1), a hopper (3) is provided on the rotating main shaft (2), a plurality of material distribution bins (4) are arranged circumferentially on the hopper (3), a ash discharge mechanism (5) is connected to the discharge port of the material distribution bins (4), an ash discharge nozzle (6) is connected to the discharge end of the ash discharge mechanism (5), a bagging frame (7) is also connected to the ash discharge mechanism (5), a bag pushing plate (8) is hinged on the bagging frame (7), and a bag pushing cylinder (13) connected to the bag pushing plate (8) is also provided on the bagging frame (7), characterized in that: A receiving cone (9) is provided on the base (1). A guide pipe (10) is provided on the upper side of the receiving cone (9) corresponding to each material distribution bin (4). A ash receiving port is provided on the guide pipe (10). It also includes an ash receiving hopper (12). The front end of the ash receiving hopper (12) is connected to the push plate (8). When the push cylinder (13) drives the push plate (8) to rotate outward, it drives the ash receiving hopper (12) to move to the lower side of the ash outlet (6). When the push cylinder (13) drives the push plate (8) to retract, the push plate (8) drives the ash receiving hopper (12) to retract synchronously. The rear end of the ash receiving hopper (12) is inserted into the ash receiving port, and the powder in the ash receiving hopper (12) is poured into the guide pipe (10) through the ash receiving port.

2. The rotary cement packaging machine according to claim 1, characterized in that: The ash hopper (12) is inclined downward from front to back. The ash hopper (12) includes a support plate (1201) and side plates (1202) on both sides of the support plate (1201). A connecting seat (21) is provided at the bottom of the support plate (1201). The connecting seat (21) is provided with an elongated hole (2101) and also includes a connecting bolt. The connecting bolt passes through the elongated hole (2101) and is bolted to the push plate (8) for fixation.

3. The rotary cement packaging machine according to claim 2, characterized in that: The ash hopper (12) is provided with a clearance groove (1203) on the side near the pusher plate (8) for avoiding the valve pocket.

4. The rotary cement packaging machine according to claim 1, characterized in that: The side panel (1202) has a trapezoidal structure.

5. The rotary cement packaging machine according to claim 1, characterized in that: A rotating connecting cylinder (17) is provided in the middle of the base (1). Several adjusting bolts (18) are arranged circumferentially on the rotating connecting cylinder (17). A central shaft (19) is inserted into the rotating connecting cylinder (17). The ends of the adjusting bolts (18) abut against the outer wall of the central shaft (19). A rotating spindle (2) is connected to the central shaft (19) through a bearing (20).

6. The rotary cement packaging machine according to claim 1, characterized in that: The side wall of the receiving cone (9) is connected to a negative pressure pipe (11) that discharges outward.

7. The rotary cement packaging machine according to claim 1, characterized in that: It also includes an umbrella cover (14) connected to the rotating spindle (2). The umbrella cover (14) is located on the upper side of the receiving cone (9). A connecting through hole is provided on the umbrella cover (14) for each guide tube (10). The guide tube (10) is connected to the umbrella cover (14) through the flange connecting plate (15). The lower end of the guide tube (10) extends into the receiving cone (9) through the connecting through hole.

8. The rotary cement packaging machine according to claim 1, characterized in that: The discharge valve includes a first clamping plate (502) connected to the ash outlet, a second clamping plate connected to the first clamping plate (502), and a gate (503) slidably inserted between the first clamping plate (502) and the second clamping plate; a drive cylinder (504) is connected to the ash hopper (501), and the output end of the drive cylinder (504) is connected to the gate (503).

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