CN211892117U

CN211892117U - Mold locking device for filter press

Info

Publication number: CN211892117U
Application number: CN202020254077.2U
Authority: CN
Inventors: 梁志宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-11-10
Anticipated expiration: 2030-03-04

Abstract

The utility model discloses a mode locking device for pressure filter, including cohesion nut assembly and supporting screw assembly, the master cylinder fixed connection of supporting screw assembly and pressure filter, cohesion nut assembly includes mould, lower mould and cohesion pneumatic cylinder, cohesion pneumatic cylinder is used for driving mould, lower mould and opens and shuts, it respectively is equipped with half screw hole to go up mould and lower mould, and when going up mould and lower mould and separately, supporting screw assembly wears to locate between half screw hole of last mould and half screw hole of lower mould, and when going up mould and lower mould compound die, half screw hole of last mould and half screw hole of lower mould make up into a complete screw hole, screw hole after the combination and the external screw thread adaptation on the supporting screw assembly. The utility model has the advantages of simple structure, low cost, high reliability and the like.

Description

Mold locking device for filter press

Technical Field

The utility model relates to a mode locking device for pressure filter is refered in particular to in the pressure filter field.

Background

A filter press is a common solid-liquid separation device. When the filter press works, the main oil cylinder is pushed to the filter plate, the main oil cylinder is locked and fixed through the mold locking device after being in place, and then the main oil cylinder extends out to tightly push the filter plate to start squeezing. The mode locking device locks and fixes the main oil cylinder so as to prevent the main oil cylinder from generating axial displacement in the squeezing process. The traditional mold locking device is commonly used for hydraulic cylinder mold locking, movable hinge (point) type mold locking and the like, wherein the hydraulic cylinder mold locking is easy to cause abrasion of an oil seal of the hydraulic cylinder after being used for a long time, and particularly a large horizontal oil cylinder is easy to damage; the movable hinged mode locking structure is complex and has high manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in: aiming at the defects in the prior art, the mold locking device for the filter press is simple in structure, low in cost and high in reliability.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a mode locking device for pressure filter, includes cohesion nut component and supporting screw assembly, the master cylinder fixed connection of supporting screw assembly and pressure filter, cohesion nut component includes mould, lower mould and cohesion pneumatic cylinder, cohesion pneumatic cylinder is used for the drive to go up mould, lower mould and opens and shuts, it respectively is equipped with half screw hole to go up mould and lower mould, and when going up mould and lower mould and separately, supporting screw assembly wears to locate between half screw hole of last mould and half screw hole of lower mould, and when going up mould and lower mould compound die, half screw hole of last mould and half screw hole of lower mould make up into a complete screw hole, screw hole after the combination and the external screw thread adaptation on the supporting screw assembly.

Further, the cohesion nut component still includes the box body, the box body is fixed in on the frame beam slab of pressure filter, it is inside that mould and lower mould are located the box body to go up the mould, cohesion pneumatic cylinder is connected with last mould or lower mould, it all is equipped with the rack with the lower mould to go up the mould, through the gear engagement transmission between the rack of last mould and the rack of lower mould, the center pin of gear is installed on the box body, still seted up on the box body with the through-hole that the screw hole position corresponds for supply the supporting screw subassembly to pass.

Further, both sides of lower mould are equipped with the curb plate that upwards extends, and curb plate upper portion sets up the rack, go up the mould and be located between two blocks of curb plates of lower mould, go up and be equipped with the medium plate that upwards extends in the middle of the top of mould, the both sides face of medium plate all sets up the rack, respectively sets up a gear between two blocks of curb plates and the medium plate.

Furthermore, the both sides of lower mould are equipped with vertical guide way up, the bottom both sides of going up the mould are equipped with vertical deflector down, guide way and deflector sliding fit.

Further, the cohesion hydraulic cylinder is located the below of box body and is connected with the lower mould, the cohesion hydraulic cylinder is fixed in on the support, the support mounting is on frame beam slab.

Furthermore, the threaded hole and the external thread are both provided with sawtooth threads.

Furthermore, a transverse supporting rod is fixedly connected to the supporting screw rod assembly, rolling wheels are arranged at two ends of the transverse supporting rod, and the rolling wheels are in rolling fit with the rails on two sides of the filter press.

Furthermore, the support screw assembly comprises a front rod section, a screw section and a tail rod section which are sequentially and fixedly connected, and the front rod section is fixedly connected with a telescopic rod of a main oil cylinder of the filter press through a flange.

Compared with the prior art, the utility model has the advantages of: the utility model has simple structure and low cost, and adopts the thread fit mode to axially limit the support screw assembly, thereby realizing the axial locking and fixing of the main oil cylinder of the filter press, the holding hydraulic cylinder only plays the role of pushing the upper die and the lower die to hold and separate, and no high-pressure pressing force is needed to be provided, and the locking force is provided by the thread fit between the threaded hole and the support screw assembly after the upper die and the lower die are held, the reliability is high, the upper die and the lower die are not easy to damage, the service life is long, and the threaded hole and the external thread all adopt the zigzag thread, the stress is good, the meshing is accurate; in addition, the upper die and the lower die are opened and closed in a gear and rack meshing transmission mode, synchronous motion of the upper die and the lower die can be achieved, the supporting screw rod assembly can be simultaneously embraced by the upper die and the lower die during die assembly, meshing is accurate, the supporting screw rod assembly can be simultaneously far away from the upper die and the lower die during die opening, and axial motion of the supporting screw rod assembly is not interfered.

Drawings

Fig. 1 is a schematic structural view of the filter press according to the present invention.

Fig. 2 is the structural schematic diagram of the middle cohesion nut assembly of the present invention.

Fig. 3 is a schematic structural view of fig. 2 with the box body removed.

Fig. 4 is a schematic structural view of the middle and lower dies of the present invention.

Fig. 5 is a schematic structural view of the middle upper die of the present invention.

Fig. 6 is a schematic structural diagram of the middle box body of the present invention.

Fig. 7 is a schematic structural view of the middle support screw assembly of the present invention.

Illustration of the drawings: 1. a wrap-around nut assembly; 11. an upper die; 111. a middle plate; 112. a guide plate; 12. a lower die; 121. a side plate; 122. a guide groove; 13. an cohesion hydraulic cylinder; 14. a box body; 141. a through hole; 15. a rack; 16. a gear; 17. a support; 18. a threaded hole; 2. a support screw assembly; 21. a transverse strut; 22. a roller; 23. a front pole section; 24. a screw section; 25. a tail rod section; 3. a master cylinder; 4. a side cylinder; 5. a track; 6. a beam plate; 7. and (4) filtering the plates.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, and it should be noted that the scope of the present invention is not limited to the following embodiments, and any modifications and decorations made by the present invention should be considered as the scope of the present invention without departing from the principle of the present invention.

As shown in fig. 1, fig. 2 and fig. 7, the utility model discloses a mode locking device for filter press, including cohesion nut component 1 and supporting screw assembly 2, supporting screw assembly 2 and filter press master cylinder 3's telescopic link fixed connection. Referring to fig. 2 to 5, the clasping nut component 1 comprises an upper die 11, a lower die 12 and a clasping hydraulic cylinder 13, the clasping hydraulic cylinder 13 is used for driving the upper die 11 and the lower die 12 to open and close, the upper die 11 and the lower die 12 are respectively provided with half threaded holes 18, when the upper die 11 and the lower die 12 are separated, the supporting screw component 2 is arranged between the half threaded holes 18 of the upper die 11 and the half threaded holes 18 of the lower die 12 in a penetrating manner, when the upper die 11 and the lower die 12 are closed, the half threaded holes 18 of the upper die 11 and the half threaded holes 18 of the lower die 12 are combined into a complete threaded hole 18, and the combined threaded hole 18 is matched with an external thread. The support screw component 2 is axially limited through the matching action of the threaded hole 18 and the external thread, so that the main oil cylinder 3 of the filter press is axially locked and fixed.

Referring to fig. 2 and 6, in this embodiment, the clasping nut assembly 1 further includes a box body 14, the box body 14 is fixed to a frame beam plate 6 of the filter press, the upper die 11 and the lower die 12 are located inside the box body 14, the clasping hydraulic cylinder 13 is connected to the upper die 11 or the lower die 12, both the upper die 11 and the lower die 12 are provided with racks 15, the racks 15 of the upper die 11 and the lower die 12 are in meshing transmission through a gear 16, a central shaft of the gear 16 is installed on the box body 14, and the box body 14 is further provided with a through hole 141 corresponding to the threaded hole 18 for the support screw assembly 2 to pass through. Go up mould 11 and lower mould 12 and open and shut through the driven mode of 16 rack 15 meshes of gear, can realize going up mould 11 and lower mould 12 synchronous motion, the cohesion is more accurate.

Referring to fig. 3, 4 and 5, in this embodiment, two sides of the lower mold 12 are provided with side plates 121 extending upward, a rack 15 is disposed on the upper portion of the side plate 121, the upper mold 11 is located between the two side plates 121 of the lower mold 12, a middle plate 111 extending upward is disposed in the middle of the top of the upper mold 11, two side surfaces of the middle plate 111 are both provided with racks 15, and a gear 16 is disposed between each of the two side plates 121 and the middle plate 111. The two sides of the lower die 12 are also provided with vertical upward guide grooves 122, the two sides of the bottom of the upper die 11 are provided with vertical downward guide plates 112, and the guide grooves 122 are in sliding fit with the guide plates 112. This arrangement makes the opening and closing movement of the upper and

lower dies

11 and 12 more stable.

In this embodiment, the looping hydraulic cylinder 13 is located below the box 14 and connected to the lower mold 12, the looping hydraulic cylinder 13 is fixed to a bracket 17, and the bracket 17 is installed on the frame beam plate 6. Of course, in other embodiments, the embracing hydraulic cylinder 13 may be disposed above the box body 14 to be connected with the upper mold 11.

It should be noted that in other embodiments, the opening and closing movements of the upper mold 11 and the lower mold 12 can be realized by other transmission methods, for example, the upper mold 11 and the lower mold 12 are respectively connected with a driving component to realize the synchronous relative movement of the upper mold 11 and the lower mold 12.

In this embodiment, the threaded hole 18 and the external thread both adopt zigzag threads, so that the stress is good, the meshing is accurate, and the looseness is not easy to occur.

Referring to fig. 1 and 7, in the present embodiment, a transverse strut 21 is fixedly connected to the support screw assembly 2, and rollers 22 are disposed at two ends of the transverse strut 21, and the rollers 22 are in rolling engagement with the rails 5 at two sides of the filter press.

Referring to fig. 7, in the present embodiment, the support screw assembly 2 includes a front rod section 23, a screw section 24 and a tail rod section 25, which are fixedly connected in sequence, and the front rod section 23 is fixedly connected with the telescopic rod of the main cylinder 3 of the filter press through a flange. The three-section structure can save the processing cost of the support screw component 2, and only the middle screw section 24 needs to be processed with threads during processing; moreover, the front rod section 23 and the tail rod section 25 are smooth rods, so that the telescopic motion of the support screw assembly 2 is smoother.

Working principle (see fig. 1):

1. a mold closing process: the side cylinder 4 of the filter press extends out to push the main oil cylinder 3 and the support screw component 2 to move towards the filter plate 7, after the filter press is in place, the holding hydraulic cylinder 13 extends out to push the lower die 12 to move upwards, the upper die 11 is driven to move downwards synchronously through the meshing transmission of the gear 16, the lower die 12 of the upper die 11 is finally closed to form a complete threaded hole 18, the screw section 24 of the support screw component 2 is held tightly, the support screw component 2 is axially limited and locked through the thread fit, under the supporting effect of the support screw component 2, the main oil cylinder 3 extends out to push the filter plate 7 tightly, and the next high-pressure squeezing process is carried out.

2. The mold opening process comprises: the main oil cylinder 3 releases pressure, the cohesion hydraulic cylinder 13 retracts, the lower die 12 is pulled to move downwards, the upper die 11 is driven to move upwards synchronously through meshing transmission of the gear 16, the upper die 11 and the lower die 12 are separated, the supporting screw rod assembly 2 is loosened, then the side cylinder 4 of the filter press retracts, the main oil cylinder 3 and the supporting screw rod assembly 2 are driven to move backwards simultaneously, the side cylinder 4 retracts in place, and the next unloading process is carried out.

Claims

1. A mode locking device for pressure filter which characterized in that: including embracing the nut component and supporting screw assembly, the master cylinder fixed connection of supporting screw assembly and pressure filter, the embracing the nut component includes mould, lower mould and embracing the pneumatic cylinder of closing, the embracing closes the pneumatic cylinder and is used for the drive to go up the mould, the lower mould opens and shuts, go up mould and lower mould and respectively be equipped with half screw hole, when going up mould and lower mould separately, the supporting screw assembly wears to locate between half screw hole of last mould and half screw hole of lower mould, when going up mould and lower mould compound die, goes up half screw hole of mould and half screw hole of lower mould and makes up into a complete screw hole, screw hole after the combination and the external screw thread adaptation on the supporting screw assembly.

2. The mold clamping device for filter press according to claim 1, wherein: the embracing nut component further comprises a box body, the box body is fixed on a frame beam plate of the filter press, the upper die and the lower die are located inside the box body, the embracing hydraulic cylinder is connected with the upper die or the lower die, the upper die and the lower die are respectively provided with a rack, the racks of the upper die and the racks of the lower die are in gear engagement transmission, a central shaft of the gear is installed on the box body, and a through hole corresponding to the position of the threaded hole is further formed in the box body and used for allowing the supporting screw rod component to pass through.

3. The mold clamping device for filter press according to claim 2, wherein: the two sides of the lower die are provided with side plates extending upwards, racks are arranged on the upper portions of the side plates, the upper die is located between the two side plates of the lower die, a middle plate extending upwards is arranged in the middle of the top of the upper die, the two side faces of the middle plate are provided with the racks, and a gear is arranged between each of the two side plates and the middle plate.

4. The mold clamping device for filter press according to claim 3, wherein: the two sides of the lower die are provided with vertical guide grooves which face upwards, two sides of the bottom of the upper die are provided with vertical guide plates which face downwards, and the guide grooves are in sliding fit with the guide plates.

5. The mold clamping device for filter press according to claim 4, wherein: the cohesion hydraulic cylinder is located the below of box body and is connected with the lower mould, the cohesion hydraulic cylinder is fixed in on the support, the support mounting is on frame beam slab.

6. The mold clamping device for filter press according to any one of claims 1 to 5, wherein: the threaded hole and the external thread are both saw-tooth threads.

7. The mold clamping device for filter press according to any one of claims 1 to 5, wherein: and the supporting screw rod assembly is fixedly connected with a transverse supporting rod, two ends of the transverse supporting rod are provided with rolling wheels, and the rolling wheels are in rolling fit with the rails on two sides of the filter press.

8. The mold clamping device for filter press according to any one of claims 1 to 5, wherein: the support screw assembly comprises a front rod section, a screw section and a tail rod section which are sequentially and fixedly connected, and the front rod section is fixedly connected with a telescopic rod of a main oil cylinder of the filter press through a flange.