CN218696710U

CN218696710U - Bale breaker

Info

Publication number: CN218696710U
Application number: CN202222863125.XU
Authority: CN
Inventors: 田琳; 骆顺东; 魏巍
Original assignee: Sany Petroleum Intelligent Equipment Co Ltd
Current assignee: Sany Petroleum Intelligent Equipment Co Ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-03-24
Anticipated expiration: 2032-10-28

Abstract

The utility model relates to the field of ton bag unpacking equipment, and provides a unpacking machine, which comprises a base, a first rotating shaft, a cutting knife, a grinding wheel and a second rotating shaft; the cutting knives are fixedly connected to the first rotating shaft; the first rotating shaft is rotatably supported on the base and used for driving the cutting knife to rotate; the grinding wheels and the cutting knives are alternately arranged and spaced; the grinding wheel can move close to or far away from the side surface of the cutting knife so as to press the edge surface of the cutting knife or separate from the edge surface; the grinding wheel can rotate around the second rotating shaft. Due to the arrangement, when the cutting knife is polished, the grinding wheel can rotate along with the cutting knife, the polishing contact position of the grinding wheel and the cutting knife is constantly changed, the local abrasion of the grinding wheel is reduced, and the service life of the grinding wheel is prolonged; meanwhile, the abrasion loss of the cutter head and the grinding wheel can be compensated by controlling the movement amount of the grinding wheel, so that the grinding wheel is always pressed with the blade surface of the cutting knife at constant contact pressure, and the grinding uniformity and constant blade angle of the cutting edge are ensured.

Description

Bale breaker

Technical Field

The utility model relates to a field of ton bag bale breaking equipment especially relates to a bale breaker.

Background

The ton bag is a flexible transportation packaging container, and is widely used for packaging and transporting powdery, granular and blocky objects such as food, grain, medicine, chemical industry, mineral products and the like, for example, in the field of fracturing industry, the transportation and packaging of fracturing sand use the ton bag, the ton bag is conveyed to a fracturing platform by a truck, and then the ton bag is punctured and filled into a sand storage tank one by one. Automatic bale breaker is the equipment that is used for cutting damaged ton bagging-off, and it mainly includes rotatable cutting knife, cuts ton bagging-off through the cutting knife. In order to ensure cutting efficiency, the cutting edge of the cutting blade needs to be kept sharp, and thus the cutting blade needs to be periodically ground.

In the related art, the cutting edge is generally repaired by manually polishing with oilstones or angle grinders after shutdown, but the efficiency is lower, the labor intensity is higher, and greater potential safety hazards exist. In addition, some structures that can polish automatically still mainly utilize the piece of polishing that can go up and down, when needs are polished, the piece of polishing rises and contacts the cutting knife and polishes the cutting knife, and after polishing, the piece of polishing descends.

According to the related technology, after a period of time of use, the local part of the grinding block is seriously abraded, and the service life of the grinding block is influenced; in addition, after the local abrasion of the polishing block, the contact angle and the shape of the polishing block and the cutting knife can be influenced, so that the polishing effect of the cutting edge of the cutting knife is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a bale breaker for solve among the prior art fast problem of emery wheel local wear, with the local wear who reduces the sanding block, improve the life of sanding block, guarantee the effect of polishing.

The utility model provides a bale breaker, which comprises a base, a first rotating shaft, a cutting knife, a grinding wheel and a second rotating shaft; the cutting knives are fixedly connected to the first rotating shaft; the first rotating shaft is rotatably supported on the base and used for driving the cutting knife to rotate; the grinding wheels and the cutting knives are alternately arranged and spaced; the grinding wheel can move close to or far away from the side surface of the cutting knife so as to press the edge surface of the cutting knife or separate from the edge surface; the grinding wheel can rotate around the second rotating shaft.

According to the utility model provides a pair of bale breaker, the base includes a pair of mounting panel that the interval set up, wear to locate respectively at the both ends of second pivot on the mounting panel and with the cooperation is slided to the mounting panel.

According to the utility model provides a pair of bale breaker, the second pivot with first pivot is the angle setting, and works as the emery wheel during operation, a side border of emery wheel with the cutting edge face contact of cutting knife.

According to the utility model provides a pair of bale breaker, the emery wheel with the second pivot is rotated and is connected.

According to the utility model provides a pair of bale breaker, the emery wheel with second pivot fixed connection, the second pivot with base normal running fit.

According to the utility model provides a pair of bale breaker, the cutting knife be discoid and with the coaxial fixed connection of first pivot.

According to the utility model provides a pair of bale breaker still includes:

the driving piece is used for driving the grinding wheel to move close to or far away from the side surface of the cutting knife;

the pressure sensor is used for detecting the contact pressure of the grinding wheel and the cutting edge surface of the cutting knife;

and the controller is used for receiving the numerical value of the pressure sensor and controlling the driving piece to move so that the grinding wheel is pressed against the edge surface of the cutting knife at constant contact pressure.

The utility model provides a pair of bale breaker, through set up the emery wheel that can be close to or keep away from the motion of cutting knife blade face in cutting knife side, and set up the emery wheel as revolvable, when needs are polished to the cutting knife, drive the emery wheel and move towards the side direction of cutting knife, until the emery wheel contacts with the blade face of cutting knife, because the cutting knife is in the state of high-speed operation, therefore the emery wheel can polish the blade face of cutting knife, simultaneously in the process of polishing, because of the effect of frictional force, the emery wheel also can revolve around the second pivot, thereby make emery wheel and cutting knife polish the contact position constantly to change, make the emery wheel wear even, reduce the local wearing and tearing of emery wheel, prolong the life of emery wheel; meanwhile, the abrasion loss of the cutter head and the grinding wheel can be compensated through the movement of the grinding wheel, and the grinding uniformity is ensured; in addition, compare in the stationary state, the emery wheel that is in the rotation state more does benefit to the heat dissipation, has reduced the annealing of cutting knife and has softened the problem.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is one of the schematic diagrams of the bale breaker provided by the present invention

Fig. 2 is a second schematic diagram of a bale breaker provided by the present invention;

fig. 3 is a schematic view of the polishing texture of the blade face of the cutting knife after polishing.

Reference numerals:

1. a base; 10. mounting a plate; 2. a first rotating shaft; 3. a cutting knife; 4. a grinding wheel; 5. a drive mechanism; 6. a second rotating shaft.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In order to facilitate understanding of the bale breaker of the utility model, firstly, an application scene is explained, the cutting knife is a main structure of the bale breaker and is mainly used for cutting ton bags, in order to ensure cutting efficiency, the cutting knife needs to be polished so as to keep sharp, in the related technology, a liftable polishing block is generally adopted for polishing the cutting knife, but because the contact position of the polishing block and the cutting knife is generally fixed, after a period of use, the problem that the local abrasion of the polishing block is serious is easily caused, and the service life of the polishing block is influenced; in addition, the contact angle and the shape of the cutting knife can be influenced after the local abrasion of the polishing block, and then the polishing effect is influenced. Therefore, this application provides a bale breaker to reduce the fast problem of sanding block local wear, improve sanding block's life, guarantee the effect of polishing.

The bale breaker of the present invention is described below with reference to fig. 1-3.

Referring to fig. 1, the bale breaker includes a base 1, a first rotating shaft 2, a cutting knife 3, and a grinding wheel 4; wherein; the number of the cutting knives 3 is multiple, the cutting knives 3 are fixedly connected to the first rotating shaft 2, and the first rotating shaft 2 is rotatably supported on the base 1, so that the cutting knives 3 can be driven to rotate synchronously; the both sides at cutting knife 3 edge have two crossing facets, and the crossing department of two facets is the blade of cutting knife 3 for cut ton bagging-off. The grinding wheels 4 are provided with a plurality of grinding wheels 4, and the cutting knives 3 and the grinding wheels 4 are alternately arranged and arranged at intervals; the grinding wheel 4 corresponds to the side face of the cutting knife 3 and can move close to or towards the side face of the cutting knife 3 to press the edge face of the cutting knife 3 with constant pressure or separate from the edge face, and the grinding wheel 4 can rotate around the central axis of the grinding wheel 4.

During actual work, the cutting knife 3 can be driven by the first rotating shaft 2 to rotate so as to cut the ton-packed bag; when the cutting knife 3 needs to be polished, the grinding wheel 4 is driven to move towards the side face direction of the cutting knife 3 until the grinding wheel 4 is in contact with the blade face of the cutting knife 3, and the cutting knife 3 is in a high-speed running state, so that the blade face of the cutting knife 3 can be polished by the grinding wheel 4, and meanwhile, in the polishing process, the grinding wheel 4 can also rotate around the axis of the grinding wheel 4 due to the action of friction force, so that the polishing contact position of the grinding wheel 4 and the cutting knife 3 is changed continuously, the grinding wheel 4 is uniformly abraded, the local abrasion of the grinding wheel 4 is reduced, and the service life of the grinding wheel 4 is prolonged; meanwhile, the abrasion loss of the cutter head and the grinding wheel 4 can be compensated through the movement of the grinding wheel 4, so that the grinding wheel 4 is always pressed against the blade surface of the cutting knife 3 under constant contact pressure, and the grinding uniformity is ensured; in addition, compare in the stationary state, the emery wheel 4 that is in the rotation state more does benefit to the heat dissipation, has reduced the annealing softening problem of cutting knife 3.

The base 1 is provided with two mounting plates 10 which are arranged at intervals, and two ends of the first rotating shaft 2 are respectively connected with the two mounting plates 10 in a rotating way; the cutting knives 3 are arranged on the first rotating shaft 2 at intervals, and particularly, the cutting knives 3 are disc-shaped and are coaxially and fixedly connected with the first rotating shaft 2; one side of base 1 is provided with actuating mechanism 5, and actuating mechanism 5's output is connected with first pivot 2 for drive first pivot 2 rotates, thereby makes first pivot 2 drive a plurality of cutting knife 3 and rotate in step, so that a plurality of cutting knife 3 cut ton bagging-off simultaneously. Specifically, the driving mechanism 5 may be a motor, or may be formed by a motor cooperating with a transmission structure such as a gear.

A plurality of grinding wheels 4 are arranged at the same interval corresponding to the cutting knives 3, and each cutting knife 3 is positioned between two adjacent grinding wheels 4. When polishing, firstly, the grinding wheel 4 moves towards the cutting knife 3 on one side to polish the blade face on one side of the cutting knife 3, and then the cutting knife 3 moves in the reverse direction to polish the blade face on the other side of the cutting knife 3. Through the removal of emery wheel 4, not only can polish simultaneously a plurality of cutting knife 3, can also make two adjacent emery wheels 4 polish the both sides facet of cutting knife 3. The sliding fit on the base 1 is provided with a second rotating shaft 6 for connecting a plurality of grinding wheels 4, and the sliding of the second rotating shaft 6 on the base 1 can drive the synchronous movement of the grinding wheels 4, so that the cutting knives 3 can be simultaneously ground.

In a specific embodiment, referring to fig. 1 and 2, two ends of the second rotating shaft 6 respectively penetrate through the two mounting plates 10 and are in sliding fit with the mounting plates 10; the grinding wheel 4 is disc-shaped and is coaxially arranged with the second rotating shaft 6, and the grinding wheel 4 is rotatably connected to the second rotating shaft 6. By driving the second shaft 6 in the axial direction of the second shaft 6, the grinding wheel 4 can be moved closer to or farther away from the cutting blade 3, and the grinding wheel 4 can be turned around on the second shaft 6 by the friction force.

For the convenience of control, can set up driving piece drive second pivot 6 axial displacement, detect the pressure before emery wheel 4 and the cutting knife 3 facet through setting up pressure sensor to control through PLC. When the cutting knife 3 is polished, the driving piece is started to drive the second rotating shaft 6 to slide along the axial direction, and the second rotating shaft 6 drives the grinding wheel 4 to move towards the cutting knife 3 until the grinding wheel 4 is in contact with the blade surface of the cutting knife 3 and reaches a set pressure; after the blade face of cutting knife 3 one side was polished and is accomplished, driving piece drive second pivot 6 slided towards opposite direction, and emery wheel 4 polishes with the contact of 3 opposite side blade faces of cutting knife. After the both sides blade face of cutting knife 3 was polished and is accomplished, drive second pivot 6 slided, made emery wheel 4 and cutting knife 3 separation and lie in between two adjacent cutting knives 3 to influence the normal work of cutting knife 3. The specific driving part can adopt any linear driving element such as an air cylinder, an electric push rod and the like.

In another embodiment, emery wheel 4 can also be with second pivot 6 fixed connection, and second pivot 6 can also rotate around the axis when sliding on base 1, and emery wheel 4 contacts the back with the cutting edge face of cutting knife 3, and under the effect of frictional force, second pivot 6 rotates on base 1 to drive cutting knife 3 and rotate, in order to reach the same effect. For example, the second shaft 6 and the output end of the driving member may be coupled by a bearing, so that the driving member only provides an axial force to the second shaft 6 without affecting the rotation of the second shaft 6.

In another embodiment, a plurality of mounting shafts may be disposed at intervals on the second rotating shaft 6, and the grinding wheel 4 is disposed coaxially with the mounting shafts and is rotatably connected to the mounting shafts. Through pulling second pivot 6 along the axis direction, can make emery wheel 4 be close to or keep away from cutting knife 3, when polishing, emery wheel 4 rotates on the installation axle. In a word, no matter what kind of mounting means is adopted with second pivot 6, only need guarantee, second pivot 6 can drive a plurality of emery wheels 4 simultaneously and move in order to polish simultaneously a plurality of cutting knives 3, simultaneously emery wheel 4 can be around self axis gyration can.

Referring to fig. 2 and 3, second pivot 6 is the contained angle setting with first pivot 2, has the contained angle between the axis of corresponding emery wheel 4 and the axis of cutting knife 3 to when polishing, make a side edge of emery wheel 4 with certain angle and the blade face contact of cutting knife 3, under comparing, the contact position of emery wheel 4 and cutting knife 3 becomes a line by a face, thereby guarantees suitable sword inclination, and makes the 3 blade faces of cutting knife have regular grain of polishing. In addition, the grinding wheel 4 which can rotate is matched to grind uniform spiral lines, so that the cutting edge has a micro-sawtooth structure, and the cutting performance of the cutting knife 3 is improved.

The driving mechanism 5 is a motor and is fixedly connected to the base 1, and an output shaft of the driving mechanism 5 is coaxially and fixedly connected with the first rotating shaft 2 and is used for driving the first rotating shaft 2 to rotate.

The cutting knife 3 has a plurality ofly and has constituteed the blade group, and correspondingly, emery wheel 4 has a plurality ofly and has constituteed the emery wheel group, can drive the blade group through first pivot 2 and rotate. The base 1 further comprises a workbench, and two ends of the workbench are fixedly connected with the two mounting plates 10 respectively, so that an inner cavity is formed inside the base 1; blade group and sand wheelset all are located 1 insides of base to one side of cutting knife 3 passes and exposes the mesa of workstation, and when the mesa of workstation was passed through to the ton bagging-off, the cutting knife 3 that is in the rotation state can cut the ton bagging-off.

In the actual work time, probably need all-round cutting ton bagging-off, consequently, the workstation can be fixed in the top of mounting panel 10, bottom or both sides, only needs to hide cutting knife 3 and emery wheel 4 inside the base to make cutting knife 3 one side expose the workstation mesa can. The grinding wheel group can be set as a group, and can also be set as more than one group according to actual requirements.

The utility model discloses an innovation point lies in: when the cutting knife 3 needs to be polished, the grinding wheel 4 is driven to move towards the side face direction of the cutting knife 3 until the grinding wheel 4 is in contact with the blade face of the cutting knife 3 and reaches a set pressure, and the cutting knife 3 is in a high-speed running state, so that the blade face of the cutting knife 3 can be polished by the grinding wheel 4, and meanwhile, in the polishing process, the grinding wheel 4 can also rotate around the second rotating shaft 6 due to the action of friction force, so that the polishing contact position of the grinding wheel 4 and the cutting knife 3 is changed continuously, the grinding wheel 4 is uniformly abraded, the local abrasion of the grinding wheel 4 is reduced, and the service life of the grinding wheel 4 is prolonged; meanwhile, the abrasion loss of the cutter head and the grinding wheel 4 can be compensated through the movement of the grinding wheel 4, so that the grinding wheel 4 is always pressed against the blade surface of the cutting knife 3 under constant contact pressure, and the grinding uniformity is ensured; in addition, compare in the stationary state, the emery wheel 4 that is in the rotation state more does benefit to the heat dissipation, has reduced the annealing of cutting knife 3 and has softened the problem. After the grinding is finished, the grinding wheel 4 is separated from the blade surface of the cutting knife 3, so that the normal operation of the cutting knife is not influenced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A bale breaker is characterized by comprising a base (1), a first rotating shaft (2), a cutting knife (3), a grinding wheel (4) and a second rotating shaft (6); the cutting knives (3) are fixedly connected to the first rotating shaft (2); the first rotating shaft (2) is rotatably supported on the base (1) and is used for driving the cutting knife (3) to rotate; the grinding wheels (4) and the cutting knives (3) are alternately arranged and spaced; the grinding wheel (4) can move close to or far away from the side surface of the cutting knife (3) to press the edge surface of the cutting knife (3) tightly or separate from the edge surface; the grinding wheel (4) can rotate around the second rotating shaft (6).

2. The bale breaker according to claim 1, characterized in that the base (1) comprises a pair of mounting plates (10) arranged at intervals, and both ends of the second rotating shaft (6) are respectively arranged on the mounting plates (10) in a penetrating way and are matched with the mounting plates (10) in a sliding way.

3. Bale breaker according to claim 1, characterized in that the second shaft (6) is arranged at an angle to the first shaft (2) and that one side edge of the grinding wheel (4) is in contact with the edge face of the cutting knife (3) when the grinding wheel (4) is in operation.

4. Bale breaker according to claim 1, characterized in that the grinding wheel (4) is rotatably connected to the second shaft (6).

5. Bale breaker according to claim 1, characterized in that the grinding wheel (4) is fixedly connected to the second shaft (6), the second shaft (6) being rotatably fitted to the base (1).

6. Bale breaker according to claim 1, characterized in that the cutting knife (3) is disc-shaped and is fixedly connected coaxially with the first shaft (2).

7. The bale breaker of any of claims 1-6, further comprising:

the driving piece is used for driving the grinding wheel (4) to move close to or far away from the side surface of the cutting knife (3);

the pressure sensor is used for detecting the contact pressure of the grinding wheel (4) and the edge surface of the cutting knife (3);

and the controller is used for receiving the value of the pressure sensor and controlling the driving piece to move so that the grinding wheel (4) is pressed against the edge surface of the cutting knife (3) at constant contact pressure.