Valve pocket bag loading reducing cutoff gate

Abstract

The utility model discloses a valve port bag feeding variable diameter cutting door, valve port bag feeding variable diameter cutting door includes: cutting drive arrangement, base, door frame, intercalary board and discharge pipe, cutting drive arrangement is drive cylinder, the base top is equipped with mounting support, mounting support is installed with drive cylinder's cylinder body top, the door frame is vertically installed on the base downward, the door frame is equipped with the through discharge through -hole and intercalary board track, the discharge pipe is installed discharge through -hole outside, intercalary board is equipped with the through -hole of corresponding discharge through -hole on, intercalary board inserts intercalary board track, top and drive cylinder's telescopic rod end head articulate, with the telescopic rod telescoping, the through -hole can be with discharge through -hole completely staggered, coincide or partially coincide. Through above -mentioned mode, the utility model can adjust the opening amplitude of half -opening according to need to satisfy the packaging requirement of different material.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment, and in particular to a valve bag feeding variable diameter cut-off door. Background Technology

[0002] All powder packaging machinery requires a shut-off gate at the discharge port to prevent material leakage and waste during the filling process. In practice, shut-off gates typically have three operating states: fully open for normal feeding, fully closed for material cutting off, and partially open for use near the end of bagging to prevent excessive flow and improve bagging quality consistency. Existing shut-off gates, once the partially open state is determined, generally cannot be adjusted further. However, different materials have varying flow rates in actual production; some have high flow rates requiring a smaller opening when partially open, while others have poor flow rates requiring a larger opening. Therefore, a shut-off gate that can adjust the partially open position based on material characteristics is needed. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a valve bag feeding variable diameter shut-off gate, which can change the semi-opening diameter of the shut-off gate as needed to adapt to the discharge requirements of different types of powders.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A valve bag feeding variable diameter cut-off gate is provided. The valve bag feeding variable diameter cut-off gate includes: a cut-off drive device, a base, a door frame, an insert plate, and a discharge pipe. The cut-off drive device is a drive cylinder. The base has a mounting bracket on its top, which is installed at the top of the cylinder body of the drive cylinder. The door frame is vertically mounted downwards on the base. The door frame has a through discharge hole and an insert plate track. The discharge pipe is installed outside the discharge hole. The insert plate has a material passage hole corresponding to the discharge hole. The insert plate is inserted into the insert plate track, and its top end is hinged to the end of the telescopic rod of the drive cylinder. As the telescopic rod extends and retracts, the material passage hole can be completely offset from, coincide with, or... Partial overlap; the base includes a horizontal connecting plate, an adjusting base plate, and an adjusting bolt seat. The horizontal connecting plate is vertically fixed to the top of the adjusting base plate and is fixedly connected to the cylinder body of the driving cylinder. The horizontal connecting plate also has a push rod clearance hole in the middle. The telescopic rod of the driving cylinder can pass through the push rod clearance hole to push the insert plate to reciprocate. Multiple sets of adjusting elongated holes are symmetrically arranged on both sides of the adjusting base plate. The adjusting bolt seat is located in the middle of the adjusting base plate near the lower edge. The door frame has bolt positioning holes on both sides that correspond one-to-one with the adjusting elongated holes. The door frame also has positioning bolt seats corresponding to the adjusting bolt seats. The bolt body of the adjusting bolt passes through the adjusting bolt seat and the corresponding positioning bolt seat and is fixed to the relative position between the door frame and the base by a nut.

[0005] In a preferred embodiment of this utility model, the door frame includes a base, a first limiting plate, a second limiting plate, and multiple fastening bolts. The base includes frame plates and a central beam. Two frame plates are symmetrically installed on both sides of the adjusting base plate. Each frame plate has multiple bolt positioning holes, and the positions of the bolt positioning holes on the upper part of the frame plates correspond one-to-one with the adjusting elongated holes on the adjusting base plate. The two ends of the central beam are respectively connected to the two frame plates, making the base as a whole I-shape. The positioning bolt seats are fixed in the middle of the central beam. The first and second limiting plates each have a bolt of the same specification in the middle. The frame plate has a material through-hole, and bolt through-holes on both sides are symmetrically arranged, corresponding one-to-one with the bolt positioning holes on the lower part of the frame plate. Multiple fastening bolts pass sequentially through the bolt through-holes on the first and second limiting plates and then into the corresponding bolt positioning holes, fixing the first and second limiting plates to the base. Guide rings are rotatably mounted on the bolts between the first and second limiting plates. The height of the guide rings matches the thickness of the insert plate, and the distance between two guide rings of the same height matches the width of the insert plate. Two rows of symmetrically distributed guide rings form the insert plate track. The fastening bolts are installed from the second limiting plate towards the base, and a buffer spring is installed on the bolt body. A dust cover is fitted onto the buffer spring.

[0006] In a preferred embodiment of this utility model, a traction limiting mechanism is also installed on the door frame. The traction limiting mechanism is located on the material discharge side of the door frame and includes: a traction frame, a traction rod, and a coupling rod. There are two traction frames, which are symmetrically installed on the outer side of the top of the door frame. The coupling rod is installed on the door frame below the material passage hole. The two ends of the coupling rod are respectively connected to the traction frame on the corresponding side through a traction rod. Both ends of the traction rod are equipped with spherical bearings.

[0007] In a preferred embodiment of this invention, a first sealing gasket is provided on the front of the material passage hole on the door frame. A second sealing gasket is provided between the material outlet pipe and the door frame.

[0008] In a preferred embodiment of this utility model, structural reinforcing plates are symmetrically arranged on the adjusting base plates on both sides of the adjusting bolt seat.

[0009] In a preferred embodiment of this utility model, a T-shaped mounting bracket is provided at the top of the cylinder body of the driving cylinder, and a triangular positioning plate is installed at each end of the T-shaped mounting bracket. The two triangular positioning plates are simultaneously fixedly connected to the horizontal connecting plate of the base.

[0010] In a preferred embodiment of this utility model, the material passage hole on the insert plate is an elongated hole.

[0011] The beneficial effects of this utility model are as follows: This utility model is an optimization of the structure of the cutting door used in existing powder packaging equipment. Not only is the overall structure compact and stable, but the relative position between the door frame and the base of the cutting door can also be adjusted. In actual use, the opening width of the half-open stage can be determined first according to the flowability of the material to be packaged, and then the relative position between the door frame and the base can be easily adjusted as needed to change the half-open opening width, thereby improving the stability of the bagging quality in the final bagging process. In this way, this utility model can meet the refined requirements of packaging various powder materials. Attached Figure Description

[0012] Figure 1 This is a side view of a preferred embodiment of the present invention when fully open. Figure 2 As shown Figure 1 Enlarged schematic diagram of a local part of the structure; Figure 3 As shown Figure 1 A side view of the connection between the middle base and the base; Figure 4 This is a schematic diagram of the rear view structure when the embodiment shown is fully open; Figure 5 This is a rear view diagram of the connection between the base and the pedestal in the illustrated embodiment; Figure 6 This is a schematic diagram of the connection structure between the drive cylinder and the insert plate when the embodiment is fully open. Figure 7 This is a schematic diagram of the rear view structure of the embodiment shown when it is half-open; Figure 8 This is a schematic diagram of the rear view structure when the embodiment shown is fully closed; The components in the attached diagram are labeled as follows: 1. Drive cylinder; 2. Mounting bracket; 3. Base; 4. Door frame; 5. Adjusting bolt; 6. Insert plate; 7. First limit plate; 8. Second limit plate; 9. Discharge pipe; 10. Fastening bolt; 11. Dust cover; 12. Buffer spring; 13. Guide ring; 14. Traction rod; 15. Joint bearing; 16. Coupling rod; 17. Traction frame; 18. First sealing gasket; 19. Second sealing gasket; 101. Cylinder block; 102. T-joint; 103. Telescopic rod end; 201. First positioning plate; 202. Second positioning plate; 301. Horizontal connecting plate; 302. Adjusting base plate; 303. Structural reinforcing plate; 304. Adjusting bolt seat; 305. Adjusting elongated hole; 401. Frame plate, 402. Middle beam, 403. Positioning bolt seat, 404. Bolt positioning hole. Detailed Implementation

[0013] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0014] Please see Figure 1 and Figure 2 The embodiments of this utility model include: A valve bag feeding variable diameter shut-off gate includes: a shut-off drive device, a base 3, a door frame 4, an insert plate 6, and a discharge pipe 9. The shut-off drive device is a drive cylinder 1. The base 3 has a mounting bracket 2 on its top, which is mounted on the top of the cylinder body 101 of the drive cylinder 1. The door frame 4 is vertically mounted downwards on the base 3. The door frame 4 has a through discharge hole and an insert plate track. One end of the discharge pipe 9 is connected to the outside of the discharge hole. The insert plate 6 is provided with a material passage hole corresponding to the discharge through hole. The material passage hole is an elongated hole, which facilitates alignment when fully open and increases the adjustment range when half open. The insert plate 6 is inserted into the insert plate track, and its top end is hinged to the telescopic rod end 103 of the drive cylinder 1. Thus, as the telescopic rod extends and retracts, the insert plate 6 slides in the insert plate track. The material passage hole can be completely offset from, coincide with, or partially coincide with the discharge through hole to realize the closing, opening, and partial opening actions of the cut-off door. The base 3 includes a horizontal connecting plate 301, an adjusting base plate 302, and an adjusting bolt seat 304. The horizontal connecting plate 301 is vertically fixed to the top of the adjusting base plate 302 and is fixedly connected to the cylinder body 301 of the driving cylinder. The horizontal connecting plate 301 is also provided with a push rod clearance hole in the middle. The telescopic rod of the driving cylinder 1 can pass through the push rod clearance hole to push the insert plate 6 to reciprocate. Two sets of adjusting elongated holes 305 are symmetrically arranged on both sides of the adjusting base plate 302. The door frame 4 is provided with bolt positioning holes 404 on both sides that correspond one-to-one with the adjusting elongated holes 305. The door frame 4 is also provided with positioning bolt seats 403 that correspond to the adjusting bolt seats 304. After the bolt body of the adjusting bolt passes through the adjusting bolt seat and the corresponding positioning bolt seat, the relative position between the door frame and the base 3 is fixed by a nut.

[0015] The door frame 4 includes a base, a first limiting plate 7, a second limiting plate 8, and multiple fastening bolts 10. The base includes frame plates 401 and a central beam 402. Two frame plates 401 are symmetrically installed on both sides of the adjusting base plate 302. Each frame plate 401 has five bolt positioning holes 404. The positions of the two bolt positioning holes 404 on the upper part of the frame plate 4 correspond one-to-one with the two adjusting elongated holes 305 on either side of the adjusting base plate 302. The two ends of the central beam 402 are connected to the two frame plates 401 respectively, making the base as a whole I-shape. The positioning bolt seats 403 are fixed in the middle of the central beam 402. The first and second limiting plates each have the same... The material passage hole is of standard size, and three bolt holes are respectively provided on both sides, corresponding one-to-one with the three bolt positioning holes 404 on the lower part of the frame plate 401, for a total of three bolt holes. Six fastening bolts pass through the bolt holes on the first limiting plate 7 and the second limiting plate 8 in sequence and enter the corresponding bolt positioning holes 404, fixing the first limiting plate 7 and the second limiting plate 8 to the base. Guide rings 13 are rotatably installed on the bolt bodies between the first limiting plate 7 and the second limiting plate 8. The height of the guide rings 13 matches the thickness of the insert plate 6, and the distance between two guide rings 13 of the same height matches the width of the insert plate 6. Two rows of symmetrically distributed guide rings 13 form the insert plate track. The fastening bolts 10 are installed from the second limiting plate 8 towards the base. A buffer spring 12 is installed on the bolt body of the fastening bolt 10, and a dust cover 11 is fitted on the buffer spring 12. By setting the buffer spring 12, the impact on the two limiting plates during the reciprocating motion of the insert plate 6 can be reduced, so that the first limiting plate 7 and the second limiting plate 8 can always stably clamp the two sides of the insert plate 6, thereby ensuring the sealing effect during the movement of the insert plate 6. The dust cover 11 prevents powder from entering the buffer spring 10 and reducing the elasticity of the buffer spring 12.

[0016] A traction limiting mechanism is also installed on the door frame 4. The traction limiting mechanism is located on the discharge side of the door frame 4 and includes: a traction frame 17, a traction rod 14, and a coupling rod 16. There are two traction frames 17, which are symmetrically installed on the outer sides of the two frame plates 401 that make up the base. The coupling rod 16 is installed on the second limiting plate 8 and is located below the material passage hole. The two ends of the coupling rod 16 are respectively connected to the corresponding traction frame 17 through a traction rod 14. Both ends of the traction rod 14 are equipped with spherical bearings 15. By setting up the traction limiting mechanism, the problem that the relative position between the first limiting plate 7 and the second limiting plate 8 after the insertion plate is reset can be solved because the bolt through holes are designed with a margin for easy installation during the reciprocating motion of the insertion plate 6. This results in the material passage hole on the first limiting plate 7 and the material passage hole on the second limiting plate 8 not being able to completely coincide.

[0017] A first sealing gasket 18 is provided on the front of the material passage hole on the door frame 4 to facilitate a tight connection with the material cylinder. A second sealing gasket 19 is provided between the discharge pipe 9 and the door frame 4, which is also the second limiting plate 8. This can improve the airtightness between the discharge pipe and the door frame 4 and prevent material leakage.

[0018] Structural reinforcing plates 303 are symmetrically arranged on the adjusting base plates 302 on both sides of the adjusting bolt seat 304. By setting the structural reinforcing plates 303, the overall structural stability of the adjusting base plate 302 is improved, and the deformation of the adjusting bolt seat 304 after long-term stress is reduced.

[0019] The mounting bracket 2 includes two T-shaped positioning plates, namely a first positioning plate 201 and a second positioning plate 202. The top of the cylinder body 101 of the driving cylinder 1 is provided with a corresponding T-shaped connector 102. The top of the vertical plate in the middle of the two T-shaped positioning plates is hinged to both ends of the T-shaped connector 102. The horizontal plate of the two T-shaped positioning plates is fixedly connected to the horizontal connecting plate 301 of the base 3. In this way, the base and the cylinder body of the driving cylinder are flexibly connected, which can absorb vibrations during the movement of the insert plate, improving the service life of the entire device.

[0020] Before actual use, this utility model first determines the opening diameter when partially open based on the material flow characteristics. Then, by adjusting the position of the nut on the adjusting bolt 5, the overlapping area between the discharge hole on the door frame 4 and the material passage hole on the insert plate 6 when partially open is changed, so that the overlapping area matches the opening diameter. Then, positioning bolts are inserted into the bolt positioning holes 404 corresponding to the four adjusting elongated holes 305 to fix the opening diameter when partially open. Moreover, during actual production, the second limiting plate 8 is always pressed against the insert plate 6 by the buffer spring 12 on the fastening bolt 10, thus effectively ensuring the overall sealing performance of the cut-off door during operation.

[0021] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A valve bag feeding variable diameter shut-off gate, characterized in that, The valve bag feeding variable diameter shut-off gate includes: a shut-off drive device, a base, a door frame, an insert plate, and a discharge pipe. The shut-off drive device is a drive cylinder. The base has a mounting bracket on its top, which is installed on the top of the cylinder body of the drive cylinder. The door frame is vertically installed on the base. The door frame has a through discharge hole and an insert plate track. The discharge pipe is installed outside the discharge hole. The insert plate has a material passage hole corresponding to the discharge hole. The insert plate is inserted into the insert plate track, and its top end is hinged to the end of the telescopic rod of the drive cylinder. As the telescopic rod extends and retracts, the material passage hole can be completely offset from, coincide with, or partially coincide with the discharge hole. The base includes a horizontal connecting plate, an adjusting base plate, and adjusting bolt seats. The horizontal connecting plate is vertically fixed to the top of the adjusting base plate and is fixedly connected to the cylinder body of the driving cylinder. The horizontal connecting plate also has a push rod clearance hole in the middle. The telescopic rod of the driving cylinder can pass through the push rod clearance hole to push the insert plate to reciprocate. Multiple sets of adjusting elongated holes are symmetrically arranged on both sides of the adjusting base plate. The adjusting bolt seats are located in the middle of the adjusting base plate near the lower edge. The door frame has bolt positioning holes on both sides that correspond one-to-one with the adjusting elongated holes. The door frame also has positioning bolt seats that correspond to the adjusting bolt seats. The bolt body of the adjusting bolt passes through the adjusting bolt seat and the corresponding positioning bolt seat and is fixed to the relative position between the door frame and the base by a nut.

2. The valve bag feeding variable diameter shut-off gate according to claim 1, characterized in that, The door frame includes a base, a first limiting plate, a second limiting plate, and multiple fastening bolts. The base includes frame plates and a central beam. Two frame plates are symmetrically installed on both sides of the adjusting base plate. Each frame plate has multiple bolt positioning holes, and the positions of the bolt positioning holes on the upper part of the frame plate correspond one-to-one with the adjusting elongated holes on the adjusting base plate. The two ends of the central beam are connected to the two frame plates respectively, making the base as a whole I-shape. The positioning bolt seats are fixed in the middle of the central beam. The first and second limiting plates each have a material passage hole of the same specification in the middle, and both sides have... The frame plate is provided with bolt through holes that correspond one-to-one with the bolt positioning holes on the lower part of the frame plate. The plurality of fastening bolts pass through the bolt through holes on the first limiting plate and the second limiting plate in sequence and enter the corresponding bolt positioning holes, thereby fixing the first limiting plate and the second limiting plate on the base. The bolt bodies between the first limiting plate and the second limiting plate are rotatably mounted with guide rings. The height of the guide rings matches the thickness of the insert plate, and the distance between two guide rings of the same height matches the width of the insert plate. The two rows of symmetrically distributed guide rings constitute the insert plate track.

3. The valve bag feeding variable diameter shut-off door according to claim 2, characterized in that, The fastening bolt is installed from the second limiting plate toward the base, and a buffer spring is installed on the bolt body.

4. The valve bag feeding variable diameter shut-off gate according to claim 3, characterized in that, A dust cover is fitted onto the buffer spring.

5. The valve bag feeding variable diameter shut-off gate according to claim 2, characterized in that, The door frame is also equipped with a traction limiting mechanism, which is located on the discharge side of the door frame and includes: a traction frame, a traction rod, and a coupling rod. There are two traction frames, which are symmetrically installed on the outer top of the door frame. The coupling rod is installed on the door frame below the material passage hole. The two ends of the coupling rod are respectively connected to the traction frame on the corresponding side through a traction rod. Both ends of the traction rod are equipped with spherical bearings.

6. The valve bag feeding variable diameter shut-off gate according to claim 1, characterized in that, The material passage hole on the door frame is provided with a first sealing gasket on the front.

7. The valve bag feeding variable diameter cut-off gate according to claim 1, characterized in that, A second sealing gasket is provided between the discharge pipe and the door frame.

8. The valve bag feeding variable diameter shut-off gate according to claim 1, characterized in that, Structural reinforcing plates are symmetrically arranged on the adjusting base plates on both sides of the adjusting bolt seat.

9. The valve bag feeding variable diameter cut-off gate according to claim 1, characterized in that, The top of the cylinder body of the drive cylinder is provided with a T-shaped mounting bracket, and a triangular positioning plate is installed at each end of the T-shaped mounting bracket. The two triangular positioning plates are simultaneously fixedly connected to the horizontal connecting plate of the base.

10. The valve bag feeding variable diameter shut-off gate according to claim 1, characterized in that, The feed hole on the insert plate is an elongated hole.

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