CN111469190A - High-precision slitting machine without reverse clearance and working method thereof - Google Patents
High-precision slitting machine without reverse clearance and working method thereof Download PDFInfo
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- CN111469190A CN111469190A CN202010361392.XA CN202010361392A CN111469190A CN 111469190 A CN111469190 A CN 111469190A CN 202010361392 A CN202010361392 A CN 202010361392A CN 111469190 A CN111469190 A CN 111469190A
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- 230000002441 reversible effect Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 57
- 238000010008 shearing Methods 0.000 claims abstract description 52
- 230000033001 locomotion Effects 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000010074 rubber mixing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
- B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
- B26D1/40—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/08—Means for actuating the cutting member to effect the cut
- B26D5/16—Cam means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2614—Means for mounting the cutting member
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2628—Means for adjusting the position of the cutting member
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Details Of Cutting Devices (AREA)
Abstract
The invention relates to a high-precision dividing and shearing machine without reverse clearance and a working method thereof, and the high-precision dividing and shearing machine comprises a box body and a dividing and shearing cutter positioned on the front side of the lower end of the box body, wherein an outer rotating shaft penetrates through the lower end of the box body, an inner rotating shaft is coaxially and rotatably arranged in the outer rotating shaft, a sliding block driven by a lifting mechanism to move up and down is arranged above the outer rotating shaft, and the sliding block is respectively connected with the outer rotating shaft and the inner rotating shaft through two crank-link mechanisms with opposite moving directions so as to drive the outer rotating shaft and the inner rotating shaft to coaxially rotate in; the dividing and shearing tool comprises a front dividing and shearing blade and a rear dividing and shearing blade which are matched, the front dividing and shearing blade is driven to rotate by an inner rotating shaft, and the rear dividing and shearing blade is driven to rotate by an outer rotating shaft. The invention has reasonable and compact structure, stable operation and no reverse clearance, improves the precision of fixed weight shearing and the production efficiency, and lightens the labor intensity of operators.
Description
The technical field is as follows:
the invention relates to a high-precision shearing machine without a reverse gap and a working method thereof.
Background art:
the high-precision weight-fixed division of the connected body is taken as a typical application for research and development. Rubber is a high-elasticity polymer material with reversible deformation, has excellent characteristics of electrical insulation, wear resistance and the like, and is widely applied to various sealing occasions. Although the rubber products (such as rubber sealing elements) are small, the rubber products have great influence on the performance of a working system, so that the rubber sealing elements have higher requirements on raw materials and processing quality of the rubber sealing elements in engineering. The current production process flow of rubber products mainly comprises the following steps: plasticating, mixing, molding, vulcanizing, and the like. Before injection molding, the extruded rubber after rubber mixing needs to be weighed and sheared with high precision.
The existing division and shearing of enterprises are mostly finished by manual operation, and the automatic division and shearing machines are partially adopted, so that the production efficiency of manual operation is low, the labor intensity of operators is high, the work is boring, the enterprise recruitment is difficult, and the bottleneck process of enterprise production is formed; the existing shearing machine adopts gear transmission, and the gear transmission inevitably has reverse clearance, so that the vibration is large, the weight fixing precision is low, and the requirement of high-precision weight fixing and shearing of extruded rubber cannot be met.
The invention content is as follows:
the invention aims at solving the problems in the prior art, namely the invention aims to provide a high-precision dividing and shearing machine without reverse clearance and a working method thereof, and the high-precision dividing and shearing machine is reasonable in structure, stable in operation and capable of effectively improving the precision of constant weight dividing and shearing and the production efficiency.
In order to achieve the purpose, the invention adopts the technical scheme that: a high-precision dividing and shearing machine without reverse clearance comprises a box body and a dividing and shearing cutter positioned on the front side of the lower end of the box body, wherein an outer rotating shaft penetrates through the lower end of the box body, an inner rotating shaft is coaxially and rotatably arranged in the outer rotating shaft, a sliding block driven by a lifting mechanism to move up and down is arranged above the outer rotating shaft, and the sliding block is respectively connected with the outer rotating shaft and the inner rotating shaft through two crank-link mechanisms with opposite moving directions so as to drive the outer rotating shaft and the inner rotating shaft to coaxially, reversely and equivalently rotate; the dividing and shearing tool comprises a front dividing and shearing blade and a rear dividing and shearing blade which are matched, the front dividing and shearing blade is driven to rotate by an inner rotating shaft, and the rear dividing and shearing blade is driven to rotate by an outer rotating shaft.
Furthermore, the outer rotating shaft penetrates through the lower end of the front side wall of the box body, the front end face of the outer rotating shaft is fixedly connected with the rear slitting blade, and two ends of the inner rotating shaft extend out of the outer rotating shaft; the slitting tool further comprises a tool rest used for mounting a front slitting blade, and the tool rest is mounted at the front end of the inner rotating shaft through an expansion coupling.
Furthermore, the front end and the rear end of the inner rotating shaft are respectively connected with the outer rotating shaft through a bearing in a rotating manner, and a spring sleeved on the outer side of the inner rotating shaft is abutted between the bearing positioned at the front end of the inner rotating shaft and the cutter frame.
Furthermore, the two crank-link mechanisms comprise a front crank-link mechanism and a rear crank-link mechanism which are respectively positioned at the front side and the rear side of the sliding block, the front crank-link mechanism comprises a front connecting rod and a front crank, one end of the front crank is fixedly connected with the rear end of the outer rotating shaft, the other end of the front crank is hinged with the lower end of the front connecting rod, and the upper end of the front connecting rod is hinged with the front end of the sliding block; the rear crank-link mechanism comprises a rear connecting rod and a rear crank, one end of the rear crank is fixedly connected with the rear end of the inner rotating shaft, the other end of the rear crank is hinged with the lower end of the rear connecting rod, the upper end of the rear connecting rod is hinged with the rear end of the sliding block, and the rear connecting rod and the front connecting rod are distributed in a left-right staggered mode.
Furthermore, one end of the front crank, which is far away from the front connecting rod, is fixedly connected with a front connecting sleeve which is sleeved outside the rear end of the outer rotating shaft, and the front connecting sleeve is connected with the outer rotating shaft through a key; the one end that back crank kept away from the back connecting rod links firmly and is equipped with the cover and establishes the back connecting sleeve in the pivot rear end outside, back connecting sleeve passes through the key and is connected with the adversion axle.
Furthermore, elevating system includes the vertical ball screw mechanism that sets up in the box and vertical setting at the linear guide of ball screw mechanism left and right sides, ball screw mechanism's nut links firmly with the slider mutually, the left and right sides both ends of slider are provided with respectively and are used for along vertical sliding connection's linear bearing with linear guide.
Further, ball screw mechanism includes ball screw, driving motor and nut, the vertical inside that sets up at the box of ball screw, driving motor fixed mounting is at the top of box, and driving motor's motor shaft passes the top of box and is connected with ball screw's upper end through the shaft coupling to drive ball screw rotates, nut and ball screw looks spiro union.
In order to achieve the purpose, the invention adopts another technical scheme that: a working method of a high-precision dividing and shearing machine without reverse clearance comprises the following steps: (1) when the slitting machine obtains a slitting signal, the driving motor is started, and the driving motor drives the sliding block to move up and down through the ball screw and the nut; (2) the slide block drives the front crank connecting rod and the rear crank connecting rod mechanism to move towards opposite directions, and the front crank connecting rod and the rear crank connecting rod mechanism move to drive the outer rotating shaft and the inner rotating shaft to coaxially rotate in opposite directions and in equal quantity; (3) the rear shearing blade and the cutter frame are driven by the outer rotating shaft and the inner rotating shaft to do coaxial reverse equivalent rotary motion, and the cutter frame drives the front shearing blade to do synchronous motion, so that the front shearing blade and the rear shearing blade do coaxial reverse equivalent rotary motion, and then the machined object is sheared.
Compared with the prior art, the invention has the following effects: the invention has reasonable and compact structure, stable operation and no reverse clearance, improves the precision of fixed weight shearing and the production efficiency, and lightens the labor intensity of operators.
Description of the drawings:
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic front sectional view of an embodiment of the present invention;
FIG. 3 is a schematic left side sectional view of an embodiment of the present invention;
fig. 4 is a schematic view showing a state of the crank mechanism when the slider moves upward in the embodiment of the present invention.
In the figure:
1-a box body; 2-cutting a cutter; 3-outer rotating shaft; 4-inner rotating shaft; 5-a lifting mechanism; 6-a slide block; 7-crank link mechanism; 8-front slitting blade; 9-rear slitting blade; 10-a tool holder; 11-expanding the coupler; 12-a lock nut; 13-a gasket; 14-an adjusting screw; 15-a spring; 16-a cover plate; 17-a front crank linkage; 18-rear crank link mechanism; 19-a front link; 20-front crank; 21-rear connecting rod; 22-rear crank; 23-front connecting sleeve; 24-rear connection sleeve; a 25-bond; 26-a ball screw mechanism; 27-a linear guide; 28-ball screw; 29-a drive motor; 30-nut.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1 to 4, the high-precision slitting machine without reverse gap of the present invention comprises a rectangular box 1 and a slitting tool 2 located at the front side of the lower end of the box 1, wherein the lower end of the box 1 is penetrated with a transversely arranged outer rotating shaft 3, the outer rotating shaft 3 is a hollow structure, an inner rotating shaft 4 is coaxially and rotatably arranged inside the outer rotating shaft 3, a slide block 6 driven by a lifting mechanism 5 to move up and down is arranged above the outer rotating shaft 3, the slide block 6 is respectively connected with the outer rotating shaft 3 and the inner rotating shaft 4 through two crank link mechanisms 7 with opposite moving directions, and when the slide block 6 moves up and down, the outer rotating shaft 3 and the inner rotating shaft 6 are coaxially, reversely and equivalently rotated through the two crank link mechanisms 7; the slitting cutter 2 comprises a front slitting blade 8 and a rear slitting blade 9 which are matched, the front slitting blade 8 is driven to rotate by an inner rotating shaft 4, the rear slitting blade 9 is driven to rotate by an outer rotating shaft 3, namely, the rear slitting blade 9 and the front slitting blade 8 are driven by the outer rotating shaft 3 and the inner rotating shaft 4 to be coaxial, reverse and equivalent, the automatic slitting of extruded rubber can be realized, the mechanical slitting of the extruded rubber is realized, the labor intensity of workers is reduced, the labor cost of enterprises is reduced, the extruded rubber can be subjected to continuous reciprocating type slitting, the production efficiency of rubber products is improved, unnecessary waste materials are not generated, and raw materials are saved.
In the embodiment, the outer rotating shaft 3 penetrates through the lower end of the front side wall of the box body 1, the outer rotating shaft 3 is rotatably mounted at the lower end of the front side wall of the box body 1 through a bearing, the front end surface of the outer rotating shaft 3 and the upper end of the rear slitting blade 9 are locked and fixed through a locking screw, two ends of the inner rotating shaft 4 extend out of the outer rotating shaft 3, and the rear end of the inner rotating shaft 4 is rotatably mounted at the lower end of the rear side wall of the box body 1 through a bearing; the slitting tool 2 further comprises a tool rest 10 used for mounting a front slitting blade 8, the front slitting blade 8 is fixed on the tool rest 10 through a locking screw, and the tool rest 10 is mounted at the front end of the inner rotating shaft 4 through an expansion coupling 11. In order to fix the expansion coupling 11, the front end of the inner rotating shaft 4 is screwed with two locking nuts 12, a gasket 13 is arranged between the locking nuts 12 and the front end face of the expansion coupling 11, and a through hole corresponding to an adjusting screw 14 on the expansion coupling 11 is formed in the gasket 13.
In this embodiment, the front end and the rear end of the inner rotating shaft 4 are rotatably connected with the outer rotating shaft 3 through bearings, and a spring 15 sleeved on the outer side of the inner rotating shaft 4 is connected between the bearing at the front end of the inner rotating shaft 4 and the tool holder 10 in a butting manner, so that the adjusting screw 14 on the rotating expansion coupling 11 adjusts the gap between the two shearing blades.
In this embodiment, square through hole has been seted up to the rear side wall lower extreme of box 1, installs apron 16 on the square through hole, and apron 16 passes through bolt and box 1 fixed connection, makes things convenient for spare part installation and debugging in the box 1.
In this embodiment, the two crank-link mechanisms 7 include a front crank-link mechanism 17 and a rear crank-link mechanism 18 respectively located at the front and rear sides of the slider 6, the front crank-link mechanism 17 includes a front link 19 and a front crank 20, one end of the front crank 20 is fixedly connected with the rear end of the outer spindle 3, the other end is hinged with the lower end of the front link 19 through a hinge pin, and the upper end of the front link 19 is hinged with the front end of the slider 6 through a hinge pin; the rear crank-link mechanism 18 comprises a rear connecting rod 21 and a rear crank 22, one end of the rear crank 22 is fixedly connected with the rear end of the inner rotating shaft 4, the other end of the rear crank is hinged with the lower end of the rear connecting rod 21 through a hinge pin shaft, the upper end of the rear connecting rod 21 is hinged with the rear end of the sliding block 6 through a hinge pin shaft, and the rear connecting rod 21 and the front connecting rod 19 are distributed in a left-right staggered manner. The slider, the front connecting rod and the front crank form a slider-crank mechanism, and in the slider-crank mechanism, the slider is driven by a ball screw mechanism to move up and down and further can be used as a power source of the slider-crank mechanism to convert the linear motion of the slider into the rotary motion of the outer rotating shaft; in the same way, the slider, the rear connecting rod and the rear crank also form a crank slider mechanism, and the linear motion of the slider is converted into the rotary motion of the inner rotating shaft. Because the rear connecting rod and the front connecting rod are distributed in a left-right staggered manner, when the sliding block moves up and down linearly, the sliding block drives the front crank to rotate towards one direction through the front connecting rod, the sliding block drives the rear crank to rotate towards the other direction through the rear connecting rod, and the rotation directions of the front crank and the rear crank are opposite, so that the coaxial reverse equivalent rotation of the outer rotating shaft and the inner rotating shaft can be realized.
In this embodiment, a front connecting sleeve 23 sleeved outside the rear end of the outer rotating shaft 3 is fixedly connected to one end of the front crank 20 away from the front connecting rod 19, and the front connecting sleeve 23 is connected with the outer rotating shaft 3 through a key 25; one end of the rear crank 22, which is far away from the rear connecting rod 21, is fixedly connected with a rear connecting sleeve 24 which is sleeved on the outer side of the rear end of the inner rotating shaft 4, and the rear connecting sleeve 24 is connected with the inner rotating shaft 4 through a key 25.
In this embodiment, the lifting mechanism 5 includes a ball screw mechanism 26 vertically disposed in the box 1 and linear guide rails 26 vertically disposed on the left and right sides of the ball screw mechanism 25, a nut 30 of the ball screw mechanism 25 is fixedly connected with the slider 6, and linear bearings for vertical sliding connection with the linear guide rails 27 are respectively disposed on the left and right ends of the slider 6, so that the slider moving linearly is prevented from rotating due to the rotation of the ball screw mechanism.
In this embodiment, the ball screw mechanism 26 includes ball screw 28, driving motor 29 and nut 30, the vertical setting of ball screw 28 is in the inside of box 1, and the lead screw fixing base and box 1 fixed connection that the ball screw 28 upper end is connected, driving motor 29 fixed mounting is at the top of box 1, and driving motor 29's motor shaft passes the top of box 1 and is connected with ball screw's 28 upper ends through the shaft coupling to drive ball screw and rotate, nut 30 and ball screw 28 looks spiro union, driving motor pass through ball screw and nut drive slider along vertical up-and-down linear motion.
In this embodiment, the specific working process includes the following steps: (1) the dividing and shearing machine is used for sorting operation by a controller, the rubber strip is extruded out of a discharge port by the existing rubber extruding machine, the extruded rubber strip is weighed by a sensor and then is controlled by the controller to divide and shear by the dividing and shearing machine in the embodiment, when the dividing and shearing machine obtains a dividing and shearing signal, a driving motor is started, and a sliding block is driven by a driving motor 29 to move up and down by a ball screw 28 and a nut 30; (2) the slide block 6 drives the front crank connecting rod 17 and the rear crank connecting rod mechanism 18 to move towards opposite directions, and the front crank connecting rod mechanism 17 and the rear crank connecting rod mechanism 18 move to drive the outer rotating shaft 3 and the inner rotating shaft 4 to coaxially rotate in opposite directions and in equal quantity; (3) the rear slitting blade 9 and the tool rest 10 are driven by the outer rotating shaft 3 and the inner rotating shaft 4 to do coaxial reverse equivalent rotary motion, the tool rest 10 drives the front slitting blade 8 to do synchronous motion, and therefore the front slitting blade 8 and the rear slitting blade 9 do coaxial reverse equivalent rotary motion and are further used for slitting the machined object.
The invention has the advantages that: (1) the invention adopts the slide block which can vertically reciprocate to be matched with the two crank-link mechanisms with opposite movement directions, and drives the slide block through the ball screw nut pair, so the structure is compact, no transmission and reverse clearance exists, compared with the traditional gear transmission, the invention can improve the shearing precision and meet the application requirement of high-precision fixed-weight shearing occasions; (2) the front slitting blade and the rear slitting blade are connected in a key-free manner, so that the cutting positions of the blades can be conveniently and accurately adjusted; (3) the dividing and shearing machine has no reverse clearance, compact structure and stable operation, can meet the requirements of occasions of extruding rubber, extruding food, lines, belts and other high-precision weight-fixed ingredients and the like, and improves the production efficiency.
If the invention discloses or relates to parts or structures which are fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated.
Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
Finally, it should be noted that: the above examples are only intended 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 preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a high accuracy slitting machine of no reverse clearance which characterized in that: the shearing machine comprises a box body and a shearing tool positioned on the front side of the lower end of the box body, wherein an outer rotating shaft penetrates through the lower end of the box body, an inner rotating shaft is coaxially and rotatably arranged in the outer rotating shaft, a sliding block driven by a lifting mechanism to move up and down is arranged above the outer rotating shaft, and the sliding block is respectively connected with the outer rotating shaft and the inner rotating shaft through two crank-link mechanisms with opposite moving directions so as to drive the outer rotating shaft and the inner rotating shaft to coaxially, reversely and equivalently rotate; the dividing and shearing tool comprises a front dividing and shearing blade and a rear dividing and shearing blade which are matched, the front dividing and shearing blade is driven to rotate by an inner rotating shaft, and the rear dividing and shearing blade is driven to rotate by an outer rotating shaft.
2. A high precision slitting machine without backlash according to claim 1, wherein: the outer rotating shaft penetrates through the lower end of the front side wall of the box body, the front end face of the outer rotating shaft is fixedly connected with the rear shearing blade, and two ends of the inner rotating shaft extend out of the outer rotating shaft; the slitting tool further comprises a tool rest used for mounting a front slitting blade, and the tool rest is mounted at the front end of the inner rotating shaft through an expansion coupling.
3. A high precision slitting machine without backlash according to claim 2, wherein: the front end and the rear end of the inner rotating shaft are respectively connected with the outer rotating shaft in a rotating mode through bearings, and springs sleeved on the outer side of the inner rotating shaft are arranged between the bearings located at the front end of the inner rotating shaft and the cutter frame in a propping mode.
4. A high precision slitting machine without backlash according to claim 1, wherein: the two crank connecting rod mechanisms comprise a front crank connecting rod mechanism and a rear crank connecting rod mechanism which are respectively positioned at the front side and the rear side of the sliding block, the front crank connecting rod mechanism comprises a front connecting rod and a front crank, one end of the front crank is fixedly connected with the rear end of the outer rotating shaft, the other end of the front crank is hinged with the lower end of the front connecting rod, and the upper end of the front connecting rod is hinged with the front end of the sliding block; the rear crank-link mechanism comprises a rear connecting rod and a rear crank, one end of the rear crank is fixedly connected with the rear end of the inner rotating shaft, the other end of the rear crank is hinged with the lower end of the rear connecting rod, the upper end of the rear connecting rod is hinged with the rear end of the sliding block, and the rear connecting rod and the front connecting rod are distributed in a left-right staggered mode.
5. A high precision slitting machine without backlash according to claim 4, wherein: one end of the front crank, which is far away from the front connecting rod, is fixedly connected with a front connecting sleeve which is sleeved outside the rear end of the outer rotating shaft, and the front connecting sleeve is connected with the outer rotating shaft through a key; the one end that back crank kept away from the back connecting rod links firmly and is equipped with the cover and establishes the back connecting sleeve in the pivot rear end outside, back connecting sleeve passes through the key and is connected with the adversion axle.
6. A high precision slitting machine without backlash according to claim 1, wherein: the lifting mechanism comprises a ball screw mechanism vertically arranged in the box body and linear guide rails vertically arranged on the left side and the right side of the ball screw mechanism, nuts of the ball screw mechanism are fixedly connected with a sliding block, and linear bearings used for being connected with the linear guide rails in a vertical sliding mode are respectively arranged at the left end and the right end of the sliding block.
7. A high precision slitting machine without backlash according to claim 6, wherein: the ball screw mechanism comprises a ball screw, a driving motor and a nut, the ball screw is vertically arranged inside the box body, the driving motor is fixedly arranged at the top of the box body, a motor shaft of the driving motor penetrates through the top of the box body and is connected with the upper end of the ball screw through a coupler so as to drive the ball screw to rotate, and the nut is in threaded connection with the ball screw.
8. A working method of a high-precision dividing and shearing machine without reverse clearance is characterized in that: the high-precision dividing and shearing machine without the reverse clearance, which is adopted by any one of the claims 1 to 7, comprises the following steps: (1) when the slitting machine obtains a slitting signal, the driving motor is started, and the driving motor drives the sliding block to move up and down through the ball screw and the nut; (2) the slide block drives the front crank connecting rod and the rear crank connecting rod mechanism to move towards opposite directions, and the front crank connecting rod and the rear crank connecting rod mechanism move to drive the outer rotating shaft and the inner rotating shaft to coaxially rotate in opposite directions and in equal quantity; (3) the rear shearing blade and the cutter frame are driven by the outer rotating shaft and the inner rotating shaft to do coaxial reverse equivalent rotary motion, and the cutter frame drives the front shearing blade to do synchronous motion, so that the front shearing blade and the rear shearing blade do coaxial reverse equivalent rotary motion, and then the machined object is sheared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010361392.XA CN111469190A (en) | 2020-04-30 | 2020-04-30 | High-precision slitting machine without reverse clearance and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010361392.XA CN111469190A (en) | 2020-04-30 | 2020-04-30 | High-precision slitting machine without reverse clearance and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111469190A true CN111469190A (en) | 2020-07-31 |
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