CN217625722U - Middle-driven scraper cleaning device for return section of adhesive tape machine - Google Patents

Abstract

The utility model relates to a middle part driven sealing-tape machine return stroke section scraper blade cleaning device belongs to the form material processing technology field that looses. The cleaning device comprises a rack, a driving device and a tensioning device, wherein a head wheel shaft is arranged at the front end of the rack through a head wheel bearing seat, a tail wheel shaft is arranged at the rear end of the rack through a tail wheel bearing seat, a head wheel is respectively arranged at each of two ends of the head wheel shaft, tail wheels are correspondingly arranged at each of two ends of the tail wheel shaft, the correspondingly matched head wheels and tail wheels are in transmission connection through chains, and a plurality of scraping plates for scraping materials are arranged on the two chains which are arranged in parallel along the width direction of the rack at intervals; the middle part of the head wheel shaft is provided with a transmission mechanism, and the driving device is connected with the head wheel shaft through the transmission mechanism so as to drive the head wheel shaft to rotate. The device simple structure has avoided the transmission shaft to bear the weight of the inequality in principle, and the problem that the flexural deformation differs has solved because of jumping the problem that the chain brought.

Description

Middle-driven scraper cleaning device for return section of adhesive tape machine

Technical Field

The utility model belongs to the technical field of the bulk material is handled, concretely relates to middle part driven sealing-tape machine return stroke section scraper blade cleaning device.

Background

Along with the attention of people to clean the transportation, more and more scraper blade clearer are arranged in the material cleans is spilt in the sealing-tape machine return stroke. The drive of current scraper blade reclaimer is through setting up the motor at scraper blade reclaimer lateral part through the reduction gear, final drive scrapes trigger sprocket gear and transmits, driving moment adopts the spline to drive spline housing and both sides sprocket rotation promptly, be typical unilateral drive, bear the inequality, there is flexible deformation in the spline housing among the transmission process, thereby lead to frequent jump chain trouble, because the scraper blade relies on the sprocket on both sides to carry out round trip rotary motion, when the chain trouble is jumped in the production, the chain on both sides can be asynchronous, then must seriously influence the normal operating of scraping the trigger. This is a technical problem to be solved.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims to provide a middle part driven sealing-tape machine return stroke section scraper blade cleaning device to solve current scraper blade cleaning machine because of jumping the problem that the chain brought.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a middle-driven scraper cleaning device for a return section of a belt conveyor comprises a rack 1, a driving device 2 and a tensioning device 11, wherein a head wheel shaft 4 is installed at the front end of the rack 1 through a head wheel bearing seat 3, a tail wheel shaft 13 is installed at the rear end of the rack 1 through a tail wheel bearing seat 12, a head wheel 5 is respectively arranged at each of two ends of the head wheel shaft 4, tail wheels 14 are correspondingly arranged at two ends of the tail wheel shaft 13, the correspondingly matched head wheels 5 and the tail wheels 14 are in transmission connection through chains 10, and a plurality of scrapers 7 for scraping materials are installed on two chains 10 which are arranged in parallel in the width direction of the rack at intervals; the middle part of the head wheel shaft 4 is provided with a transmission mechanism 22, and the driving device 2 is connected with the head wheel shaft 4 through the transmission mechanism 22 so as to drive the head wheel shaft 4 to rotate.

Further, the transmission mechanism (22) is one of an orthogonal helical gear structure, a sprocket transmission mechanism, a belt transmission mechanism or a rack and pinion transmission mechanism.

Further, the tensioning device 11 comprises a mounting rack 19, a sliding block 16, a spring 17 and an adjusting screw rod 18; mounting bracket 19 sets up in frame 1 and is located frame 1 rear end department, slider 16 inlay card is in the spout of mounting bracket 19 and can be in the spout along chain 10 extending direction back-and-forth movement, slider 16's rear end and tail-wheel bearing 12 fixed connection, slider 16's front end is connected with spring 17's rear end, spring 17's front end passes through the rear end rotatable coupling of fixation nut seat 23 with adjustment lead screw 18, adjustment lead screw 18's front end pass mounting bracket 19 and with set up the connecting hole threaded connection on mounting bracket 19.

Further, a front locking nut 20 and a rear locking nut 21 are arranged on the adjusting screw 18, and the front locking nut 20 and the rear locking nut 21 are respectively positioned on the front side and the rear side of the connecting hole.

Further, the chain 10 is an endless chain.

Furthermore, two ends of each scraper 7 are correspondingly connected with the chain buckles 101 on the two chains 10 through the scraper supports 8; the upper and lower sections of the chain 10 are provided with scrapers 7.

Further, the flight 7 is inclined in the forward direction of the chain 10.

Furthermore, the scraper 7 is provided with a reinforcing rib 9.

Further, a plurality of guide wheels 6 are arranged on the frame 1, and the guide wheels 6 are arranged at positions corresponding to the chain 10 to support the chain and guide the chain to move.

Further, an inner groove 601 is formed in the circumferential direction of the guide wheel, and the cross section of the inner groove is of a stepped tooth trace structure.

The beneficial effects of the utility model reside in that:

1) This device simple structure easily makes, cleans through the scraper blade and spills the material with the return stroke section and scrape and send to the collecting hopper in, does not need the manpower to clear the material operation, has alleviateed production operation personnel intensity of labour.

2) This device transmits drive power for the head wheel axle through the drive mechanism who sets up in head wheel axle middle part, has avoided the transmission shaft to bear the weight of the inequality in principle, and problem that flexible deformation differs has been solved from the principle and has jumped the problem that the chain produced.

3) The mode that overspeed device tensioner adopted lead screw and spring combination has great tensioning stroke on the one hand, and on the other hand can also realize automatic tensioning in certain extent, and in addition, the spring can also provide the certain length adjustment allowance of chain, and when the card material appeared, the scraper blade gesture can realize the adaptability adjustment because of this allowance, helps solving the card material problem.

4) Compared with the scheme that the existing scraper is positioned at the inner sides of the two chains, the connecting mode of the device can ensure that the contact surface of the scraper is wider and the material cleaning area is larger; in addition, when the scraper blade ascends, the scraper blade is positioned above the chain, and the pressure of the scraper blade on the chain is always vertical downwards, so that the phenomenon of chain dropping can be reduced.

5) The scraper blade inclines forwards along the movement direction, which is helpful for reducing material blockage and ensuring that the material is cleaned more thoroughly.

6) The guide wheel is adopted to support the chain, and the chain is in rolling contact with the guide wheel, so that the power consumption can be reduced, and the service life of the chain can be prolonged; the guide wheel is circumferentially provided with a concave surface with a step-type tooth trace structure, and the concave surface is matched with the shape of the supported chain strip, so that the chain dropping phenomenon can be further reduced.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of the structure of embodiment 1;

FIG. 2 is a cross-sectional view M-M of FIG. 1;

FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 1;

FIG. 4 is a sectional view taken along line B-B of FIG. 1;

FIG. 5 is an enlarged view of the portion X of FIG. 2;

FIG. 6 is a schematic structural view of the tensioner of embodiment 1 when not tensioned;

fig. 7 is a schematic structural view of embodiment 2.

Reference numerals:

the device comprises a rack 1, a driving device 2, a head wheel bearing seat 3, a head wheel shaft 4, a head wheel 5, a guide wheel 6, a scraper 7, a scraper support 8, a reinforcing rib 9, a chain 10, a tensioning device 11, a tail wheel shaft bearing seat 12, a tail wheel shaft 13, a tail wheel 14, a material collecting hopper 15, a sliding block 16, a spring 17, an adjusting screw rod 18, a mounting rack 19, a front locking nut 20, a rear locking nut 21, a transmission mechanism 22, a fixing nut seat 23, a chain buckle 101 and an inner groove 601.

Detailed Description

The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples can be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better explanation of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Example 1

Referring to fig. 1 to 6, a middle-driven cleaning device for a scraper blade in a return section of a tape machine includes a frame 1, a driving device 2, and a tensioning device 11, where the frame 1 is used as an installation base, a head wheel shaft 4 is installed at a front end of the frame 1 through a head wheel bearing block 3, a tail wheel shaft 13 is installed at a rear end of the frame 1 through a tail wheel bearing block 12, two ends of the head wheel shaft 4 are respectively provided with a head wheel 5, two ends of the tail wheel shaft 13 are correspondingly provided with tail wheels 14, a pair of correspondingly matched head wheels 5 and tail wheels 14 are in transmission connection through a chain 10, the two chains 10 are arranged side by side along a width direction of the frame, two ends of the scraper blade 7 are correspondingly connected to the two chains 10, and a plurality of scraper blades 7 for scraping and conveying materials are installed on the two chains 10 at intervals. The middle part of the head wheel shaft 4 is provided with a transmission mechanism 22, the driving device 2 transmits driving torque to the head wheel shaft 4 through the transmission mechanism 22, and the rotating head wheel shaft 4 drives the head wheel 5 thereon to rotate. The transmission mechanism 22 in this embodiment is an orthogonal helical gear structure, but other structures, such as a sprocket drive, a belt drive, a rack and pinion drive, etc., may be adopted.

In the present embodiment, two sets of tensioning devices 11 are provided, and are correspondingly disposed at two ends of the tail pulley shaft 13, that is, the tail pulley shaft 13 is mounted on the rack 1 through the tensioning devices 11. The tensioning device 11 comprises a mounting rack 19, a sliding block 16, a spring 17 and an adjusting screw rod 18; the mounting bracket 19 is arranged on the rack 1 and is positioned at the rear end of the rack 1, the slider 16 is embedded in a sliding groove of the mounting bracket 19 in a clamping manner and can move back and forth in the sliding groove along the extending direction of the chain 10, the rear end of the slider 16 is fixedly connected with the tail wheel bearing seat 12, the front end of the slider 16 is connected with the rear end of the spring 17, the front end of the spring 17 is rotatably connected with the rear end of the adjusting screw rod 18 through a fixed nut seat 23, and the front end of the adjusting screw rod 18 penetrates through the mounting bracket 19 and is in threaded connection with a connecting hole formed in the mounting bracket 19.

Specifically, the tail wheel bearing 12 and the slider 16 can move back and forth along the sliding groove along with the spring 17 and the adjusting screw 18 to adjust the tightness of the chain 10. The tensioning device 11 has a large tensioning stroke on one hand and can realize automatic tensioning within a certain range on the other hand by combining the adjusting screw 18 with the spring 17, and in addition, the spring 17 can provide a certain length adjustment allowance of the chain 10, and when jamming occurs, the posture of the scraper 7 can be adjusted adaptively due to the allowance, so that the problem of jamming is solved.

In the scheme, the adjusting screw rod 18 is provided with a front locking nut 20 and a rear locking nut 21, and the front locking nut 20 and the rear locking nut 21 are respectively positioned on the front side and the rear side of the connecting hole. Namely, after the front end of the adjusting screw rod 18 passes through the mounting frame 19, the front locking nut 20 is positioned on the outer side of the mounting frame 19, the rear locking nut 21 is positioned on the inner side of the mounting frame 19, and the locking nuts on the two sides are matched with each other to be adjusted and locked so as to limit the rotation of the adjusting screw rod 18.

The chain 10 in this embodiment is an endless chain. One end of each scraper 7 is connected with a chain buckle 101 on one chain 10 through a scraper support 8, and the other end of the scraper (arranged along the width direction of the rack 1) is correspondingly connected with the chain buckle 101 on the other chain 10 (arranged in parallel) through one scraper support 8; the chain 10 wound around the head pulley 5 and the tail pulley 14 is divided into an upper chain section (i.e., an upper chain) and a lower chain section (i.e., a lower chain), and the upper chain section and the lower chain section are both provided with scrapers 7. Compared with the scheme that the existing scraper is positioned at the inner sides of the two chains, the connecting mode can ensure that the contact surface of the scraper 7 is wider and the material cleaning area is larger; in addition, when the scraper 7 moves upwards, the scraper is positioned above the chain 10, and the pressure of the scraper 7 on the chain 10 is always vertically downward, so that the phenomenon of chain dropping can be reduced.

As a further optimization of the above solution, the scraper 7 is inclined forward in the direction of movement of the chain 10, which helps to reduce jamming and to make the clearing more thorough.

As the further optimization of the scheme, the scraper 7 is provided with the reinforcing ribs 9, and the reinforcing ribs 9 can enhance the strength of the scraper 7, improve the structural reliability and prolong the service life of the scraper.

The frame 1 in this embodiment is provided with eight guide wheels 6, wherein three guide wheels 6 are symmetrically arranged on the left and right of the upper run, one guide wheel 6 is symmetrically arranged on the left and right of the lower run at the position where the chain 10 leaves the tail wheel 14, the position of each guide wheel 6 is corresponding to the chain 10, and the guide wheels 6 are used for supporting the chain 10 and guiding the chain 10 to move.

In this embodiment, an inner groove 601 is formed in the circumferential direction of the guide wheel 6, and the cross section of the inner groove 601 is in a stepped tooth trace structure, and the tooth trace structure is matched with the shape of the supported chain 10, so that the supported chain 10 can be better supported and guided.

When the cleaning device works, the driving device 2 drives the head wheel 5 to drive the chain 10 wound on the head wheel 5 and the tail wheel 11 to do clockwise reciprocating motion, and the scraper 7 is driven by the chain 10 to scrape and convey the return-stroke material to the collecting hopper 15.

Example 2

The present embodiment is different from embodiment 1 in that: the transmission mechanism 22 used for the head pulley shaft 4 is a belt transmission, as shown in fig. 7. The driving device drives the head wheel shaft 4 to rotate through a belt transmission mechanism, so that the chain and the scraper are driven to reciprocate.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or substituted by equivalents without departing from the spirit and scope of the technical solutions, which should be covered by the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a middle part driven sealing-tape machine return stroke section scraper blade cleaning device, includes frame (1), drive arrangement (2) and overspeed device tensioner (11), its characterized in that: the front end of a rack (1) is provided with a head wheel shaft (4) through a head wheel bearing seat (3), the rear end of the rack (1) is provided with a tail wheel shaft (13) through a tail wheel bearing seat (12), two ends of the head wheel shaft (4) are respectively provided with a head wheel (5), two ends of the tail wheel shaft (13) are correspondingly provided with tail wheels (14), the correspondingly matched head wheels (5) and the tail wheels (14) are in transmission connection through chains (10), and a plurality of scraping plates (7) for scraping materials are arranged on two chains (10) which are arranged in parallel along the width direction of the rack at intervals; the middle part of the head wheel shaft (4) is provided with a transmission mechanism (22), and the driving device (2) is connected with the head wheel shaft (4) through the transmission mechanism (22) to drive the head wheel shaft (4) to rotate.

2. The middle-drive belt conveyor return segment scraper cleaning device of claim 1, characterized in that: the transmission mechanism (22) is one of an orthogonal helical gear structure, a sprocket transmission mechanism, a belt transmission mechanism or a rack and pinion transmission mechanism.

3. The middle-drive belt conveyor return segment scraper cleaning device of claim 1, characterized in that: the tensioning device (11) comprises a mounting frame (19), a sliding block (16), a spring (17) and an adjusting screw rod (18); mounting bracket (19) set up in frame (1) and are located frame (1) rear end department, slider (16) inlay card is in the spout of mounting bracket (19) and can be in the spout along chain (10) extending direction back-and-forth movement, the rear end and the tail-wheel shaft holder (12) fixed connection of slider (16), the front end of slider (16) is connected with the rear end of spring (17), the front end of spring (17) passes through the rear end rotatable coupling of fixation nut seat (23) and adjustment lead screw (18), the front end of adjustment lead screw (18) passes mounting bracket (19) and with set up the connecting hole threaded connection on mounting bracket (19).

4. The middle-drive belt conveyor return segment scraper cleaning device of claim 3, characterized in that: the adjusting screw rod (18) is provided with a front locking nut (20) and a rear locking nut (21), and the front locking nut (20) and the rear locking nut (21) are respectively positioned on the front side and the rear side of the connecting hole.

5. The middle-drive belt conveyor return segment scraper cleaning device of claim 1, characterized in that: the chain (10) is a loop chain.

6. The middle-driven cleaning device for the return segment scraper of the belt conveyor as claimed in claim 5, wherein: both ends of each scraper (7) are correspondingly connected with the chain buckles (101) on the two chains (10) through the scraper support (8); the upper section and the lower section of the chain (10) are both provided with scrapers (7).

7. The middle-drive belt conveyor return segment scraper cleaning device of claim 6, characterized in that: the scraper (7) is inclined in the advancing direction of the chain (10).

8. The middle-drive belt conveyor return segment scraper cleaning device of claim 6, characterized in that: the scraper (7) is provided with a reinforcing rib (9).

9. The middle-drive belt conveyor return segment scraper cleaning device of claim 1, characterized in that: a plurality of guide wheels (6) are arranged on the rack (1), and the guide wheels (6) are arranged at positions corresponding to the chain (10) to support the chain and guide the chain to move.

10. The middle-drive belt conveyor return segment scraper cleaning apparatus of claim 9, characterized in that: an inner groove (601) is formed in the circumferential direction of the guide wheel (6), and the cross section of the inner groove is of a stepped tooth trace structure.

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