CN220319781U

CN220319781U - Linear peristaltic pump

Info

Publication number: CN220319781U
Application number: CN202322277655.0U
Authority: CN
Inventors: 赵国强; 阳波; 董兵阳; 廖春
Original assignee: Hunan Zhixian Technology Co ltd
Current assignee: Hunan Zhixian Technology Co ltd
Priority date: 2023-08-23
Filing date: 2023-08-23
Publication date: 2024-01-09
Anticipated expiration: 2033-08-23

Abstract

The utility model discloses a linear peristaltic pump, which comprises a frame, a guide seat, a tube pressing part, a hose fixing frame, a lifting power part, a closure part and a controller, wherein the guide seat, the tube pressing part, the hose fixing frame, the lifting power part, the closure part and the controller are arranged on the frame; the elastic hoses are arranged on the hose fixing frame in parallel in a one-in-multiple-out mode, and the output ends of the elastic hoses are connected with the interception part; the pipe pressing component is fixed on the frame and used for extruding the elastic hose so as to realize material conveying; the hose fixing frame is used for fixing the elastic hose and is connected with the output end of the lifting power component through the guide seat, and the hose fixing frame drives the elastic hose to perform reciprocating linear motion under the driving of the lifting power component; the controller is respectively connected with the pipe pressing component, the lifting power component and the intercepting component and is used for realizing automatic control of material filling. The utility model has the advantages of compact structure, low abrasion of the hose, small gravity load born by the lifting driving system, capability of realizing quantitative filling and the like.

Description

Linear peristaltic pump

Technical Field

The utility model belongs to the technical field of fluid delivery, and particularly relates to a linear peristaltic pump.

Background

At present, in the field of fluid delivery pumps, the linear peristaltic pump is widely applied to various industries including chemical industry, pharmaceutical industry, food filling industry and the like due to the advantages of no pollution, strong self-priming capability, long service life of a hose, better accuracy and the like. The linear peristaltic pump compresses the elastic fluid medium tube through a group of rollers of the opposite clamping tube, and the fluid in the elastic fluid medium tube is conveyed in a linear upward rolling mode. After reaching the preset position, the butt clamp roller loosens the elastic fluid medium pipe and descends linearly to return to the original position; the filling quantity is regulated by regulating the ascending and descending distance of the roller wheels of the opposite clamping pipe. However, when multiple groups of linear peristaltic pumps are used together, in order to adjust the filling amount, each linear peristaltic pump needs a set of servo driving system to drive and control the lifting distance of each group of opposite clamping rollers, so that the structure is complex, and the manufacturing cost is high. In addition, a set of lifting driving system is adopted to drive the lifting seat, a plurality of groups of independently driven pipe pressing components are arranged on the lifting seat, the pipe pressing components are driven to linearly lift in a reciprocating mode along with the lifting seat, and fluid in corresponding fluid medium pipes is extruded, so that the purpose of conveying the fluid is achieved, although corresponding functions can be achieved, the plurality of groups of independently driven pipe pressing components are arranged on the lifting seat, the overall lifting gravity load is large, the required driving motor power is large, the load born by a required ball screw is large, and the manufacturing cost of the device is directly influenced.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the linear peristaltic pump which has the advantages of compact structure, low abrasion of a hose, small gravity load born by a lifting driving system and capability of realizing quantitative filling.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a linear peristaltic pump comprises a frame, and a guide seat, a tube pressing part, a hose fixing frame, a lifting power part, a interception part and a controller which are arranged on the frame; the elastic hoses are arranged on the hose fixing frame in parallel in a one-in-multiple-out mode, and the output ends of the elastic hoses are connected with the interception part; the pipe pressing component is fixed on the frame and used for extruding the elastic hose so as to realize material conveying; the hose fixing frame is used for fixing the elastic hose and is connected with the output end of the lifting power component through the guide seat, and the hose fixing frame drives the elastic hose to perform reciprocating linear motion under the driving of the lifting power component; the controller is respectively connected with the pipe pressing component, the lifting power component and the intercepting component and is used for realizing automatic control of material filling.

As a further improvement of the utility model, the hose fixing frame comprises a first fixing plate, a connecting support upright post, a second fixing plate and a hose joint; the two sides of the first fixing plate and the second fixing plate are respectively connected through the connecting support upright post, and a plurality of hose connectors for fixing the elastic hose are arranged on the first fixing plate and the second fixing plate; the bottom of the first fixing plate is connected with the lifting power component.

The utility model further comprises a liquid separator, an inlet connecting pipeline and an outlet connecting pipeline, wherein the liquid separator is arranged on the side part of the frame, the output end of the liquid separator is connected with a plurality of discharge ports in parallel, the number of the discharge ports corresponds to that of the elastic hoses, the input ends of the elastic hoses are connected with the discharge ports of the liquid separator through the inlet connecting pipeline, and the output ends of the elastic hoses are connected with the interception part through the outlet connecting pipeline.

As a further improvement of the present utility model, the tube pressing member includes: the device comprises a supporting frame, a butt clamp roller, a first driving motor, a first speed reducer, a T-shaped swing rod sleeve, a cross connecting rod and a knuckle bearing; the first driving motor and the first speed reducer are arranged in the supporting frame, and the butt clamp idler wheels are arranged at the top of the supporting frame; the output end of the first driving motor is connected with a first speed reducer, the output end of the first speed reducer is connected with a T-shaped swing rod sleeve, cross connecting rods are arranged on two sides of the T-shaped swing rod sleeve, and the cross connecting rods are connected with the butt clamp idler wheels through joint bearings; the opposite clamping roller swings under the drive of the first driving motor so as to clamp or loosen the elastic hose.

As a further improvement of the utility model, the butt-clamping rollers comprise first rollers and second rollers, the number of the butt-clamping rollers corresponds to the number of the elastic hoses, the number of the first driving motors corresponds to the number of the butt-clamping rollers, and the first driving motors are electrically connected with the controller so as to realize independent control of the single-group butt-clamping rollers.

As a further improvement of the utility model, the lifting power component comprises a second driving motor, a mounting plate, a ball screw, a lifting seat, a guide shaft, a screw nut and a second connecting upright post; the second driving motor is electrically connected with the controller and fixed on the mounting plate, and the mounting plate is fixed with the frame through a second connecting upright post; the output end of the second driving motor is connected with a ball screw, the screw nut is fixed on a lifting seat, guide shafts are arranged on two sides of the lifting seat, and the guide shafts penetrate through the guide seats and are connected to the bottom of the hose fixing frame; under the drive of the second driving motor, the ball screw rotates, and the screw nut drives the lifting seat and the guide shaft to lift in a reciprocating manner, so that the elastic hose can lift in a reciprocating manner.

As a further improvement of the utility model, the output end of the second driving motor is connected with the ball screw through a coupler.

As a further improvement of the present utility model, the intercepting member includes: the device comprises a mounting frame, a pipe clamping assembly, a supporting upright post and a third driving motor, wherein the mounting frame is fixed at the top of a rack through the supporting upright post, the third driving motor is arranged inside the mounting frame, the pipe clamping assembly is arranged at the top of the mounting frame, the third driving motor is electrically connected with a controller, an outlet connection pipeline is arranged in the pipe clamping assembly in a penetrating mode, the output end of the third driving motor is connected with the pipe clamping assembly, and the pipe clamping assembly clamps the outlet connection pipeline under the driving of the third driving motor to cut off materials.

As a further improvement of the utility model, the pipe clamping assembly comprises a pipe clamping fixing block and a pipe clamping rotating block, wherein the pipe clamping fixing block is fixed at the top of the installation frame, the pipe clamping rotating block is connected with the output end of the third driving motor, and the pipe clamping rotating block rotates towards the direction of the pipe clamping fixing block under the driving of the third driving motor so as to clamp the outlet connecting pipeline.

As a further improvement of the utility model, the intercepting part further comprises a second speed reducer, and the second speed reducer is arranged at the output end of the third driving motor and is connected with the pipe clamping rotating block.

Compared with the prior art, the utility model has the advantages that:

according to the linear peristaltic pump, the guide seat, the pipe pressing part, the hose fixing frame, the lifting power part, the intercepting part and the controller are integrated on the frame, the elastic hose is fixed on the hose fixing frame along the vertical direction, the output end of the elastic hose is connected with the intercepting part, the hose fixing frame is connected with the lifting power part through the guide seat so as to drive the hose fixing frame part to perform reciprocating linear motion, a group of lifting power parts drive the hose fixing frame to drive the multichannel hose to lift, and the pipe pressing part extrudes the multichannel elastic hose and conveys materials; when the automatic metering and conveying device works, the controller sends corresponding instructions to the pipe pressing component, the lifting power component and the intercepting component according to a preset control method for quantitatively conveying fluid by the linear peristaltic pump, so that the pipe pressing component, the lifting power component and the intercepting component are controlled to automatically operate, automatic metering and conveying of materials is realized, meanwhile, the fact that the materials cannot flow back is ensured, the working efficiency of the filling pump is remarkably improved, and the manufacturing cost of filling equipment is reduced. The linear peristaltic pump can meet the equipment requirements of small and large capacity at the same time, and can ensure high precision.

Drawings

Fig. 1 is a schematic structural diagram of a linear peristaltic pump device of the present utility model.

Fig. 2 is a schematic perspective view of the medium pressure pipe part according to the present utility model.

Fig. 3 is a schematic view of the principle of the partial sectional structure of the medium pressure pipe part of the present utility model.

Fig. 4 is a schematic top view of the medium pressure pipe part of the present utility model.

Fig. 5 is a schematic view of the three-dimensional structure of the hose fixing frame according to the present utility model.

Fig. 6 is a schematic diagram of the structure principle of the lifting power component in the utility model.

Fig. 7 is a schematic perspective view of a closure member according to the present utility model.

Fig. 8 is a schematic view of a cut-off part in partial cross-section structure in accordance with the present utility model.

Legend description: 1. a frame; 2. a guide seat; 3. a tube pressing member; 4. a hose fixing frame; 5. a lifting power component; 6. a shutoff member; 7. a controller; 8. a knockout; 9. an inlet connecting pipeline; 10. an elastic hose; 11. the outlet is connected with a pipeline; 301. a support column; 302. a frame lower connecting plate; 303. a support plate; 304. a side sealing plate; 305. a pump base bottom plate; 306. a pump seat rear mounting plate; 307. a pump seat front mounting plate; 308. a top cover; 309. a first roller; 310. a second roller; 311. a first driving motor; 312. a first speed reducer; 313. a first deep groove ball bearing; 314. t-shaped swing rod sleeve; 315. a connecting screw; 316. a pressing pad; 317. a side plate; 318. a cross connecting rod; 319. a knuckle bearing; 401. a first fixing plate; 402. connecting the support upright post; 403. a second fixing plate; 404. a hose connector; 501. a second driving motor; 502. a motor fixing plate; 503. a coupling; 504. a first connecting column; 505. a screw rod fixing plate; 506. a ball screw; 507. a lifting seat; 508. a guide shaft; 509. a screw nut; 510. the second connecting upright post; 601. a support column; 602. a frame lower connecting plate; 603. a support plate; 604. a valve seat top plate; 605. a clamping tube fixing block; 606. a clamp pipe rotating block; 607. a pressing pad; 608. a third driving motor; 609. a second speed reducer; 610. a second deep groove ball bearing; 611. a side sealing plate; 612. side baffles.

Detailed Description

The utility model is further described below in connection with the drawings and the specific preferred embodiments, but the scope of protection of the utility model is not limited thereby.

Examples

As shown in fig. 1 to 8, the linear peristaltic pump of the present utility model comprises a frame 1, and a guide holder 2, a tube pressing part 3, a hose fixing frame 4, a lifting power part 5, a shutoff part 6 and a controller 7 which are arranged on the frame 1. The plurality of elastic hoses 10 are arranged on the hose fixing frame 4 in parallel in a one-in-multiple-out mode, and the output ends of the elastic hoses 10 are connected with the interception part 6. The pipe pressing part 3 is fixed on the frame 1 and used for pressing the elastic hose 10 so as to realize material conveying. The hose fixing frame 4 is used for fixing the elastic hose 10, and the hose is simple and reliable in positioning, easy to detach and assemble, and convenient to detach, clean and sterilize. The hose fixing frame 4 is connected with the output end of the lifting power component 5 through the guide seat 2, and the hose fixing frame 4 drives the elastic hose 10 to perform reciprocating linear motion under the driving of the lifting power component 5. The controller 7 is respectively connected with the pipe pressing part 3, the lifting power part 5 and the intercepting part 6 and is used for realizing automatic control of material filling. It will be appreciated that the controller 7 may specifically be a PLC controller.

In this embodiment, a single lifting driving system is used to drive the lifting seat, a plurality of vertically tensioned elastic hoses 10 are installed on the hose fixing frame 4, the hose fixing frame 4 is installed on the lifting seat, and reciprocating linear lifting is performed along with the lifting seat. The elastic hose 10 passes through the pressure pipe part 3 which can be independently driven, the pressure pipe part 3 is not lifted, the pressure pipe part 3 clamps the elastic hose, and when the lifting seat drives the elastic hose 10 to descend, the pressure pipe part 3 extrudes the fluid in the corresponding elastic hose so as to realize fluid delivery, thereby realizing quantitative filling. The fixed-point metering conveying is realized according to the requirements, the gravity load born by the lifting driving system can be reduced, the manufacturing cost is greatly saved, the equipment requirements of small loading and large loading are met, and the high precision can be ensured.

As shown in fig. 1, in this embodiment, the liquid separator 8, the inlet connection 9 and the outlet connection 11 are further included. The knockout 8 sets up in frame 1 lateral part, and the output of knockout 8 sets up a plurality of discharge gates in parallel, and the quantity of discharge gate is corresponding with the quantity of elastic hose 10, realizes that the material is once advanced many, satisfies the demand of filling in batches. The input end of the elastic hose 10 is connected with the discharge port of the liquid dispenser 8 through an inlet connecting pipeline 9, and the output end of the elastic hose 10 is connected with the interception part 6 through an outlet connecting pipeline 11.

In this embodiment, the elastic hose 10 is fixed on the hose fixing frame component 4 through the hose connector in a straightening way, and two ends of the elastic hose 10 are connected with the liquid distributor 8 and the intercepting component 6 through the inlet connecting pipeline 9 and the outlet connecting pipeline 11.

As shown in fig. 5, in the present embodiment, the hose fixing bracket 4 includes a first fixing plate 401, a connection support post 402, a second fixing plate 403, and a hose connector 404. The two sides of the first fixing plate 401 and the second fixing plate 403 are respectively connected through the connecting support upright posts 402, and a plurality of hose connectors 404 for fixing the elastic hose 10 are respectively arranged on the first fixing plate 401 and the second fixing plate 403. The bottom of the first fixing plate 401 is connected with the lifting power part 5 to realize the reciprocating lifting of the whole hose fixing frame 4.

As shown in fig. 2 to 4, in the present embodiment, the tube pressing member 3 includes: the device comprises a supporting frame, a butt clamp roller, a first driving motor 311, a first speed reducer 312, a T-shaped swing rod sleeve 314, a cross connecting rod 318 and a joint bearing 319. The first driving motor 311 and the first speed reducer 312 are installed in the supporting frame, and the butt-clamp roller is disposed at the top of the supporting frame. The output end of the first driving motor 311 is connected with the first speed reducer 312, the output end of the first speed reducer 312 is connected with the T-shaped swing rod sleeve 314, cross connecting rods 318 are arranged on two sides of the T-shaped swing rod sleeve 314, and the cross connecting rods 318 are connected with the butt-clamping rollers through joint bearings 319. The opposite clamp roller swings to clamp or unclamp the elastic hose 10 by the driving of the first driving motor 311.

In this embodiment, the butt-clamping rollers include a first roller 309 and a second roller 310, the number of the butt-clamping rollers corresponds to the number of the elastic hoses 10, the number of the first driving motors 311 corresponds to the number of the butt-clamping rollers, and the first driving motors 311 are electrically connected with the controller 7 to realize independent control of single-group butt-clamping rollers. The liquid in the hose is extruded vertically in a straight line, the roller rotates, the friction force is small, and the service life of the hose is long.

In this embodiment, the support frame includes a support column 301, a frame lower connection plate 302, a support plate 303, side seal plates 304, a pump mount base plate 305, a pump mount rear mounting plate 306, a pump mount front mounting plate 307, and a top cover 308. The support column 301 is fixed with the frame 1, the frame lower connecting plate 302 is connected with the support column 301, the support plate 303 is connected with the frame lower connecting plate 302, the pump seat bottom plate 305 is connected with the support plate 303, the pump seat rear mounting plate 306 and the pump seat front mounting plate 307 are respectively arranged on two sides of the pump seat bottom plate 305, the first roller 309 and the second roller 310 are respectively arranged between the pump seat rear mounting plate 306 and the pump seat front mounting plate 307, and the top cover 308 is arranged on the tops of the pump seat rear mounting plate 306 and the pump seat front mounting plate 307. A side plate 317 is provided on the frame lower connection plate 302, and the first driving motor 311 and the first speed reducer 312 are provided in the side plate 317. The junction of T type pendulum rod cover 314 and pump seat bottom plate 305 is equipped with first deep groove ball bearing 313, and T type pendulum rod cover 314 top is equipped with pressure pad 316, and T type pendulum rod cover 314 passes through connecting screw 315 and is connected with cross connecting rod 318 and joint bearing 319. The T-shaped swing rod cover 314 is swung by the driving force provided by the first driving motor 311, so that the first roller 309 and the second roller 310 are swung in a butt clamp to clamp or unclamp the elastic hose 10. Realize double roller opposite pressing to compress the hose. It will be appreciated that in other embodiments, a pneumatic or hydraulic cylinder may be used to drive the dual roller pinch hose.

As shown in fig. 6, in the present embodiment, the lifting power unit 5 includes a second driving motor 501, a mounting plate, a ball screw 506, a lifting seat 507, a guide shaft 508, a screw nut 509, and a second connection post 510. The second driving motor 501 is electrically connected with the controller 7, the second driving motor 501 is fixed on a mounting plate, and the mounting plate is fixed with the frame 1 through a second connecting upright 510. The output end of the second driving motor 501 is connected with a ball screw 506, a screw nut 509 is fixed on a lifting seat 507, guide shafts 508 are arranged on two sides of the lifting seat 507, and the guide shafts 508 penetrate through the guide seats 2 and are connected to the bottom of the hose fixing frame 4. Under the drive of the second driving motor 501, the ball screw 506 rotates, and the screw nut 509 drives the lifting seat 507 and the guide shaft 508 to lift reciprocally, so as to realize the reciprocating linear lifting of the elastic hose 10.

Further, the mounting plate includes a motor mounting plate 502. The output end of the second driving motor 501 is connected to a ball screw 506 through a coupling 503.

In this embodiment, the second driving motor 501 is connected to the controller 7, the second driving motor 501 is fixed on the motor fixing plate 502, the motor fixing plate 502 is fixed to the screw fixing plate 505 through the first connecting column 504, and the screw fixing plate 505 is fixed to the frame 1 through the second connecting column 510. The output end of the second driving motor 501 is connected with the ball screw 506 through the coupling 503, the screw nut 509 is fixed on the lifting seat 507, two ends of the lifting seat 507 are respectively fixed with the guide shaft 508, the first fixing plate 401 in the hose fixing frame 4 is connected with the guide shaft 508 through the connecting support upright post 402, the ball screw 506 rotates under the driving of the second driving motor 501, the screw nut 509 drives the lifting seat 507 to reciprocate, and then the reciprocating linear lifting of the plurality of elastic hoses 10 on the hose fixing frame 4 is realized through the guide shaft 508. The multi-channel fluid conveying device is driven by a group of vertical lifting systems to convey fluid, and is compact in structure and low in manufacturing cost. The starting point of the vertical lifting system uniformly accelerates and descends, the middle end uniformly descends, the tail end instantaneously uniformly decelerates and stops, and the delivery fluid displacement is stable.

As shown in fig. 7 and 8, in the present embodiment, the shutoff member 6 includes: a mounting frame, a clamp tube assembly, a support post 601 and a third drive motor 608. The installation frame passes through the support post 601 to be fixed at frame 1 top, and third driving motor 608 sets up in the installation frame inside, and the clamp pipe assembly sets up at the installation frame top, and third driving motor 608 is connected with the controller 7 electricity, and outlet connection pipeline 11 wears to establish in the clamp pipe assembly, and the output and the clamp pipe assembly of third driving motor 608 are connected, and under the drive of third driving motor 608, the clamp pipe assembly presss from both sides tight outlet connection pipeline 11, realizes the material closure.

In this embodiment, the pipe clamping assembly includes a pipe clamping fixing block 605 and a pipe clamping rotating block 606, the pipe clamping fixing block 605 is fixed at the top of the installation frame, the pipe clamping rotating block 606 is connected with the output end of the third driving motor 608, and the pipe clamping rotating block 606 rotates towards the direction of the pipe clamping fixing block 605 under the driving of the third driving motor 608 so as to clamp the outlet connecting pipeline 11.

As shown in fig. 8, in the present embodiment, the intercepting member 6 further includes a second speed reducer 609, and the second speed reducer 609 is disposed at an output end of the third driving motor 608 and connected to the pipe clamping rotating block 606, for realizing stable transmission of driving force.

In this embodiment, the mounting frame is composed of a frame lower connection plate 602, a support plate 603, a valve seat top plate 604, side seal plates 611, and side fences 612. The frame lower connecting plate 602 is fixed at the top of the frame 1 through the supporting upright post 601, the supporting plate 603 is fixed with the frame lower connecting plate 602, the valve seat bottom plate 604 is fixed with the supporting plate 603, the pipe clamping fixing block 605 is fixed with the valve seat top plate 604, and the third driving motor 608 is arranged inside the frame. The third driving motor 608 is electrically connected with the controller 7, the output end of the third driving motor 608 is connected with the second speed reducer 609, the second speed reducer 609 is fixed with the valve seat top plate 604, the pipe clamping rotating block 606 is fixed with the output end of the second speed reducer 609, the outlet connecting pipeline 11 is arranged in the pipe clamping fixing block 605 in a penetrating way, the pipe clamping rotating block 606 swings towards the fixed direction under the driving of the third driving motor 608, and the outlet connecting pipeline 11 is clamped or loosened to realize the material interception of each channel.

It can be understood that the number of the third driving motors 608 is in one-to-one correspondence with the number of the tube clamping rollers and the first driving motors 311 in the tube pressing component 3, is also in one-to-one correspondence with the number of the elastic hoses 10 on the hose fixing frame 4, and each tube clamping assembly can be independently controlled to be opened and closed, so that the interception of each elastic hose 10 can be independently controlled. It will be appreciated that in other embodiments, an air or hydraulic cylinder may be used to drive the rotating block 606 in the direction of the fixed block 605.

In this embodiment, a single lifting driving system is used to drive the lifting seat, a plurality of vertically tensioned elastic hoses are mounted on the hose fixing frame, the hose fixing frame is mounted on the lifting seat, and reciprocating linear lifting is performed along with the lifting seat. The elastic hose is arranged between the two rollers which can be independently driven, the two rollers are not lifted, the two rollers clamp the elastic hose, and when the lifting seat drives the elastic hose to descend, the two rollers squeeze fluid in the corresponding elastic hose so as to realize fluid conveying. And each elastic hose outlet is provided with an independently driven shutoff part so as to realize independent on-off control of each elastic hose. In the process of quantitatively conveying fluid, the elastic hose is clamped by the pre-driving pipe pressing component, the elastic hose is loosened by the post-driving cut-off control valve, the lifting seat is driven to descend, and the plurality of vertically tensioned elastic hoses descend along with the lifting seat and respectively squeeze fluid in the corresponding elastic hoses to convey the fluid. When the elastic hoses of all the channels are detected to descend to reach the preset distances H1, H2 and H3. from the original point, the first driving stop flow control valve loosens the elastic hoses corresponding to all the channels, the second driving pipe pressing component loosens the elastic hoses corresponding to all the channels, when the elastic hoses of all the channels are detected to descend to reach the preset distances H0 from the original point, H0 is larger than H1, H2 and H3., the lifting seat is stopped, and the lifting seat is automatically driven to ascend and return to the original point. It is understood that the value of the falling distance H may be set according to the actual metering and conveying requirements, and the values of H1, H2, H3..

In the embodiment, a set of lifting driving system is adopted to drive the lifting seat, so that the hoses are driven to perform linear reciprocating motion. That is, in the process that the lifting seat lifts for one period, a plurality of hoses are extruded by the rollers at the same time, so that multi-pipe material conveying is realized, the working efficiency of the quantitative metering device is remarkably improved, the gravity load born by the lifting driving system is reduced, and the manufacturing cost of the quantitative metering device is reduced. And the fixed-point metering conveying can be performed according to the requirements, the equipment requirements of small loading and large loading are met, and high precision can be ensured.

While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model or equivalent embodiments using the method and technical solution disclosed above without departing from the spirit and technical solution of the present utility model. Therefore, any simple modification, equivalent substitution, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model, which do not depart from the technical solution of the present utility model, still fall within the scope of the technical solution of the present utility model.

Claims

1. The linear peristaltic pump is characterized by comprising a frame (1), a guide seat (2), a tube pressing component (3), a hose fixing frame (4), a lifting power component (5), a shutoff component (6) and a controller (7), wherein the guide seat (2), the tube pressing component (3), the hose fixing frame (4), the lifting power component (5) and the shutoff component (6) are arranged on the frame (1); a plurality of elastic hoses (10) are arranged on the hose fixing frame (4) in parallel in a one-in-multiple-out mode, and the output end of each elastic hose (10) is connected with a shutoff component (6); the pipe pressing component (3) is fixed on the frame (1) and is used for extruding the elastic hose (10) so as to realize material conveying; the hose fixing frame (4) is used for fixing an elastic hose (10), the hose fixing frame (4) is connected with the output end of the lifting power component (5) through the guide seat (2), and the hose fixing frame (4) drives the elastic hose (10) to perform reciprocating linear motion under the driving of the lifting power component (5); the controller (7) is respectively connected with the pipe pressing component (3), the lifting power component (5) and the intercepting component (6) and is used for realizing automatic control of material filling.

2. The linear peristaltic pump of claim 1, characterized in that the hose mount (4) comprises a first fixing plate (401), a connecting support post (402), a second fixing plate (403) and a hose connector (404); two sides of the first fixing plate (401) and the second fixing plate (403) are respectively connected through connecting support columns (402), and a plurality of hose connectors (404) for fixing the elastic hoses (10) are arranged on the first fixing plate (401) and the second fixing plate (403); the bottom of the first fixing plate (401) is connected with the lifting power component (5).

3. The linear peristaltic pump of claim 2 further comprising a dispenser (8), an inlet connection pipeline (9) and an outlet connection pipeline (11), wherein the dispenser (8) is arranged on the side of the frame (1), the output end of the dispenser (8) is provided with a plurality of discharge ports in parallel, the number of the discharge ports corresponds to the number of the elastic hoses (10), the input end of the elastic hoses (10) is connected with the discharge ports of the dispenser (8) through the inlet connection pipeline (9), and the output end of the elastic hoses (10) is connected with the interception component (6) through the outlet connection pipeline (11).

4. A linear peristaltic pump according to claim 3, characterized in that the tube pressing member (3) comprises: the device comprises a supporting frame, a butt clamp roller, a first driving motor (311), a first speed reducer (312), a T-shaped swing rod sleeve (314), a cross connecting rod (318) and a knuckle bearing (319); the first driving motor (311) and the first speed reducer (312) are arranged in the supporting frame, and the butt clamp roller is arranged at the top of the supporting frame; the output end of the first driving motor (311) is connected with a first speed reducer (312), the output end of the first speed reducer (312) is connected with a T-shaped swing rod sleeve (314), cross connecting rods (318) are arranged on two sides of the T-shaped swing rod sleeve (314), and the cross connecting rods (318) are connected with the butt-clamping rollers through joint bearings (319); the opposite clamping rollers swing under the drive of the first driving motor (311) so as to clamp or unclamp the elastic hose (10).

5. The linear peristaltic pump of claim 4 wherein the pinch rollers comprise a first roller (309) and a second roller (310), the number of pinch rollers corresponding to the number of flexible tubing (10), the number of first drive motors (311) corresponding to the number of pinch rollers, the first drive motors (311) being electrically connected to the controller (7) to effect independent control of a single set of pinch rollers.

6. A linear peristaltic pump according to claim 3, characterized in that the lifting power member (5) comprises a second drive motor (501), a mounting plate, a ball screw (506), a lifting seat (507), a guide shaft (508), a screw nut (509), a second connecting stud (510); the second driving motor (501) is electrically connected with the controller (7), the second driving motor (501) is fixed on a mounting plate, and the mounting plate is fixed with the frame (1) through a second connecting upright post (510); the output end of the second driving motor (501) is connected with a ball screw (506), a screw nut (509) is fixed on a lifting seat (507), guide shafts (508) are arranged on two sides of the lifting seat (507), and the guide shafts (508) penetrate through the guide seats (2) and are connected to the bottom of a hose fixing frame (4); under the drive of the second driving motor (501), the ball screw (506) rotates, and the screw nut (509) drives the lifting seat (507) and the guide shaft (508) to lift reciprocally, so that the elastic hose (10) lifts reciprocally and linearly.

7. The linear peristaltic pump of claim 6 wherein the output of the second drive motor (501) is coupled to a ball screw (506) via a coupling (503).

8. A linear peristaltic pump according to claim 3, characterized in that the shut-off member (6) comprises: the device comprises a mounting frame, a pipe clamping assembly, a supporting upright post (601) and a third driving motor (608), wherein the mounting frame is fixed at the top of a frame (1) through the supporting upright post (601), the third driving motor (608) is arranged inside the mounting frame, the pipe clamping assembly is arranged at the top of the mounting frame, the third driving motor (608) is electrically connected with a controller (7), an outlet connecting pipeline (11) is arranged in the pipe clamping assembly in a penetrating mode, the output end of the third driving motor (608) is connected with the pipe clamping assembly, and the pipe clamping assembly clamps the outlet connecting pipeline (11) under the driving of the third driving motor (608) to cut off materials.

9. The linear peristaltic pump of claim 8 wherein the pinch tube assembly comprises a pinch tube fixed block (605) and a pinch tube rotating block (606), the pinch tube fixed block (605) being fixed on top of the mounting frame, the pinch tube rotating block (606) being connected to the output of the third drive motor (608), the pinch tube rotating block (606) being rotated in the direction of the pinch tube fixed block (605) by the drive of the third drive motor (608) to pinch the outlet connection line (11).

10. The linear peristaltic pump of claim 9, characterized in that the shut-off member (6) further comprises a second speed reducer (609), said second speed reducer (609) being arranged at the output of the third driving motor (608) and being connected to the pinch rotation block (606).