CN108994884B - Flexible bar cutting machine - Google Patents
Flexible bar cutting machine Download PDFInfo
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- CN108994884B CN108994884B CN201810839759.7A CN201810839759A CN108994884B CN 108994884 B CN108994884 B CN 108994884B CN 201810839759 A CN201810839759 A CN 201810839759A CN 108994884 B CN108994884 B CN 108994884B
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- cutting
- bar
- cam
- cutter
- washboard
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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
- B26D1/02—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 stationary cutting member
- B26D1/03—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 stationary cutting member with a plurality of cutting members
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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
- B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
- B26D7/0608—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by pushers
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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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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Knives (AREA)
- Control Of Cutting Processes (AREA)
Abstract
The invention discloses a flexible bar cutting machine, which is a high-precision automatic cutting device for cylindrical surfaces at two ends of a bar with certain rigidity, and comprises three systems of feeding, jacking and rubbing cutting. The feeding system drives a cam disc on the first cam shaft to rotate by a motor, and the cam disc drives a push plate to realize forward feeding so that bars fall into a V-shaped groove; the second cam shaft drives the cam and the V-shaped groove to move up and down, the rubbing and cutting system comprises a cutting table surface and a rubbing plate, a blade with adjustable distance and inclination is arranged on the cutting table surface, the rubbing plate drives the bar to roll forwards under the driving of the crank, and when the bar rolls to be contacted with the blade, end cutting is started, and end cutting is completed after continuous rolling for one circle. The three transmission systems can return automatically, so that reciprocating end cutting is realized. The pressure of the washboard is adjustable, the problems of easy deformation of clamping and low end face cutting precision caused by softness of the bar are solved, the structure is simple, and the requirements of flatness of the cutting end face and cutting precision can be well ensured.
Description
Technical Field
The invention relates to a flexible bar cutting machine, in particular to a device special for shearing flexible bars, belonging to the technical field of machining equipment of special materials.
Background
At present, a bar end cutting device which is common in the mechanical field generally takes rigid metal bars or sectional materials as processing materials, and the cutting mode is also mostly finished by a special metal cutting machine. The flexible bar is easy to deform due to the special material, the end face of the flexible bar cannot be guaranteed to be flush when the flexible bar is clamped, and more flexible bar is reserved when being fed, so that the material waste is caused; on the other hand, the end cutting devices special for flexible bar stock in the market at present are few and most of the end cutting devices cannot guarantee the cutting precision, so that the invention of the high-precision end cutting device for flexible materials is required, the problem that the materials are easy to deform is solved, and the cutting precision is guaranteed.
Disclosure of Invention
The invention aims to solve the problems in the background art, designs a flexible bar cutting machine, and aims to solve the problems that flexible bar materials are easy to deform and the processing precision of materials is low when the flexible bar materials are clamped by aiming at a high-precision automatic cutting device for cylindrical surfaces at two ends of flexible bar materials with certain rigidity. The device is processed through rubbing pressure, rubbing pressure can be adjusted through the adjusting spring, the problems of easy deformation of clamping and low end face cutting precision caused by softness of a bar are solved, the used transmission structure is simple, the bar cutting function is easy to realize, the requirements of flatness and cutting precision of the cut end face can be well guaranteed, meanwhile, the distance between blades can be adjusted, and the cutting length of the bar can be changed. The cutting device with high precision and high reliability is provided for bar materials made of organic polymer materials such as plastics and nylon in the market or hose materials with certain rigidity, and has wide practical application value.
The technical scheme adopted by the invention is as follows:
a flexible bar cutter comprising: the feeding system, the jacking system and the rubbing and cutting system are driven by a stepping motor; the feeding system is provided with a first cam shaft (11), and the jacking system is provided with a second cam shaft (21); the stepping motor firstly transmits motion to a first cam shaft (11) of the feeding system through a synchronous belt, the first cam shaft (11) transmits motion to a second cam shaft (21) of the jacking system through the synchronous belt, and the transmission ratio of the first cam shaft (11) to the second cam shaft (21) is 1:1; the rubbing and cutting system also transmits motion through a first cam shaft (11) of the feeding system, so that the feeding system, the jacking system and the rubbing and cutting system synchronously and periodically move; the method is characterized in that: the feeding system comprises: a push plate (6), a cam disc (10) and an L-shaped connecting piece (16); the center of the cam disc (10) is fixedly connected to the first cam shaft (11), the side surface of the cam disc (10) is provided with a guide chute, the push plate (6) is fixedly connected with the L-shaped connecting piece (16), the end part of the L-shaped connecting piece (16) is provided with a roller, the roller is embedded into the guide chute of the cam disc (10), and the two ends of the push plate (6) are in sliding fit with the two side surfaces of the frame through the arranged horizontal guide sliding blocks; when the cam disc (10) rotates, the L-shaped connecting piece (16) drives the push plate (6) to periodically move forwards and backwards, and bar stock (29) to be cut can be pushed into the jacking system when the push plate moves forwards;
the jacking system comprises: a V-shaped groove (4.1), a lifting rod (22) and a cam (18); the bar (29) to be cut is horizontally placed on the V-shaped groove (4.1), the cam (18) is heart-shaped, the center of the cam (18) is fixedly connected to the second cam shaft (21), the lower end of the lifting rod (22) is in sliding contact with the outer cambered surface of the cam (18) through a roller, the upper end of the lifting rod (22) is fixedly connected with the V-shaped groove (4.1), and when the lifting rod (22) rises to the highest position due to the pushing action of the cam (18), the bar (29) rises to the highest position synchronously and then moves forward to the rubbing and cutting system horizontally under the pushing of the push plate (6);
the scrubbing and cutting system comprises: an upper pressing plate crank (13), an upper pressing plate connecting rod (14), a washboard support frame (3), a washboard (1), a cutter shaft (25), a cutter supporting groove (26), a blade (27) and a cutting table top (30); one end of the upper pressing plate crank (13) is fixedly connected to the end part of the first cam shaft (11), the other end of the upper pressing plate crank (13) is hinged with the upper pressing plate connecting rod (14), and the upper pressing plate connecting rod (14) is hinged with the end part of the washboard support frame (3);
the two ends of the washboard support frame (3) are in sliding fit with the two side surfaces of the frame through horizontal guide sliding blocks, a bearing seat (2) is further arranged on the upper portion of the washboard support frame (3), a support frame bottom plate (3.1) is arranged on the lower portion of the washboard support frame (3), two ends of one side of the washboard (1) are connected with the bearing seat (2) through bearings, an adjusting spring (1.1) for adjusting the rub-down pressure is further arranged on the washboard (1), and a through screw screwed with the support frame bottom plate (3.1) is arranged in the adjusting spring (1.1); when the first cam shaft (11) rotates, the washboard support frame (3) periodically slides back and forth under the linkage action of the upper pressing plate crank (13) and the upper pressing plate connecting rod (14), and then the washboard (1) is driven to move back and forth;
the cutting table top (30) is arranged at the lower part of the washboard (1), slots for accommodating blades (27) are formed in two sides of the cutting table top (30), the cutter shafts (25) are positioned below the cutting table top (30), two ends of the cutter shafts (25) are connected with the frame through bearings, the lower ends of the cutter supporting grooves (26) are hinged with the cutter shafts (25), the blades (27) are vertically arranged on the cutter supporting grooves (26), the upper cutting edges of the blades (27) are inclined, the cutting edges far away from one end of the cutter shafts (25) are lifted upwards, and supporting bolts (28) capable of adjusting the cutting edge inclination of the blades (27) are arranged at the lower parts of the cutter supporting grooves (26);
when the bar (29) is horizontally pushed onto the cutting table top (30) by the push plate (6), the bar (29) is positioned on the cutting table top (30) by the washboard (1), the bar (29) is driven to roll forwards, the two ends of the bar (29) are simultaneously rotary-cut by the blade (27), and the bar (29) which is to be cut off the end part is continuously pushed outwards forwards, so that the cutting process of the bar (29) is completed;
the flexible bar cutting machine as described above, wherein: setting: and in the process that the bar (29) contacts with the cutting edge of the blade (27) and the bar (29) is cut, the bar (29) rotates for one circle.
The flexible bar cutting machine as described above, wherein: sliding bearings are arranged at two ends of the V-shaped groove (4.1), the sliding bearings are sleeved on a vertical linear bearing cylinder (23), and the linear bearing cylinder (23) is fixedly connected to the frame.
The flexible bar cutting machine as described above, wherein: the cutting table is characterized in that at least three slots for accommodating blades (27) on two sides of the cutting table surface (30) are arranged for changing the cutting size, the slot width of each slot is larger than the thickness of each blade (27), and the hinge joint of the lower end of each cutter supporting groove (26) and the cutter shaft (25) can be finely adjusted to move left and right along the axial millimeter level of the cutter shaft (25).
The invention has the beneficial effects that:
according to the invention, through rubbing and pressing type processing, the rubbing pressure can be adjusted through the adjusting spring, the problems of easy deformation of clamping and low end face cutting precision caused by softness of the bar are solved, the used transmission structure is simple, the bar cutting function is easy to realize, the requirements of flatness and cutting precision of the cut end face can be better ensured, meanwhile, the distance between blades can be adjusted, and the cutting length of the bar can be changed. The cutting method with high precision and high reliability is provided for bar stocks (or hoses with certain rigidity) made of organic polymer materials such as plastics, nylon and the like in the market, and the cutting method has wide practical application value.
Drawings
FIG. 1 is a schematic perspective view of a three-dimensional model of a flexible bar cutter according to an embodiment of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is another directional axis schematic;
FIG. 4 is a schematic diagram of a feed system configuration;
FIG. 5 is a schematic diagram of a jacking system;
fig. 6 is a schematic diagram of a material rubbing system.
Description of the marks in the accompanying drawings: 1-washboard, 1.1-pressure regulating spring, 2-bearing frame, 3-washboard support frame, 3.1-support frame bottom plate, 4-lifting slide block, 4.1-V-shaped groove, 5-guide rail, 6-push plate, 7-support, 8-synchronous pulley, 9-synchronous belt, 10-cam disc, 11-first cam shaft, 12-bearing frame, 13-upper pressing plate crank, 14-upper pressing plate connecting rod, 15-middle panel, 16-L-shaped connecting plate, 17-stepping motor, 18-cam, 19-bearing frame, 20-bearing, 21-second cam shaft, 22-lifting rod, 23-linear bearing cylinder, 24-pin shaft, 25-tool shaft, 26-tool groove, 27-blade, 28-supporting bolt, 29-bar, 30-cutting table top.
Detailed Description
Embodiments of the present invention are further described below with reference to the drawings, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below are exemplary and intended to illustrate the present invention and should not be construed as limiting the invention, but any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention, which are not described in detail in the present technical solution.
Referring to fig. 1 to 6, the flexible bar cutting machine of the present invention includes: the feeding system, the jacking system and the rubbing and cutting system are arranged on the plate-type frame and driven by a stepping motor 17. The feeding system is provided with a first cam shaft 11, and the jacking system is provided with a second cam shaft 21; the step motor 17 firstly transmits motion to a first cam shaft 11 of the feeding system through a synchronous belt, the first cam shaft 11 transmits motion to a second cam shaft 21 of the jacking system through a synchronous belt 9, and the transmission ratio of the first cam shaft 11 to the second cam shaft 21 is 1:1; the rubbing and cutting system also transmits motion through a first cam shaft 11 of the feeding system, so that the feeding system, the jacking system and the rubbing and cutting system synchronously and periodically move.
Referring to fig. 1 to 3 and 4, the feeding system includes: a push plate 6, a cam plate 10, an L-shaped connecting piece 16; the center of the cam disc 10 is fixedly connected to the first cam shaft 11, the side surface of the cam disc 10 is provided with a guide chute, the push plate 6 is fixedly connected with the L-shaped connecting piece 16, the end part of the L-shaped connecting piece 16 is provided with a roller, the roller is embedded into the guide chute of the cam disc 10, and the two ends of the push plate 6 are in sliding fit with the two side surfaces of the frame through the arranged horizontal guide sliding blocks; when the cam plate 10 rotates, the L-shaped connecting piece 16 drives the pushing plate 6 to periodically move back and forth, and when the pushing plate moves forward, the bar 29 to be cut can be pushed into the jacking system.
Referring to fig. 1 to 3 and 5, the jacking system includes: v-groove 4.1, lifting rod 22, cam 18; the bar 29 to be cut is horizontally placed on the V-shaped groove 4.1, the cam 18 is heart-shaped, the center of the cam 18 is fixedly connected to the second cam shaft 21, the lower end of the lifting rod 22 is in sliding contact with the outer cambered surface of the cam 18 through a roller, the upper end of the lifting rod 22 is fixedly connected with the V-shaped groove 4.1, when the lifting rod 22 rises to the highest position due to the pushing action of the cam 18, the bar 29 rises to the highest position synchronously, and the lower inclined surface of the rubbing plate 1 of the rubbing and cutting system just pushes the bar 29 to roll forwards.
Referring to fig. 1 to 3 and 6, the scrubbing and cutting system includes: the upper pressing plate crank 13, the upper pressing plate connecting rod 14, the washboard support frame 3, the washboard 1, the cutter shaft 25, the cutter supporting groove 26, the blade 27 and the cutting table top 30; one end of the upper pressing plate crank 13 is fixedly connected to the end part of the first cam shaft 11, the other end of the upper pressing plate crank 13 is hinged with the upper pressing plate connecting rod 14, and the upper pressing plate connecting rod 14 is hinged with the end part of the washboard support frame 3.
The two ends of the washboard support frame 3 are in sliding fit with the two side surfaces of the frame through horizontal guide sliding blocks, a bearing seat 2 is further arranged on the upper portion of the washboard support frame 3, a support frame bottom plate 3.1 is arranged on the lower portion of the washboard support frame 3, two ends of one side of the washboard 1 are connected with the bearing seat 2 through bearings, an adjusting spring 1.1 for adjusting the rubbing down pressure is further arranged on the washboard 1, and a penetrating screw rod screwed with the support frame bottom plate 3.1 is arranged in the adjusting spring 1.1; when the first cam shaft 11 rotates, the washboard support frame 3 periodically slides back and forth under the linkage action of the upper pressing plate crank 13 and the upper pressing plate connecting rod 14, and further moves back and forth with the washboard 1.
The cutting table 30 is arranged at the lower part of the washboard 1, slots for accommodating blades 27 are formed in two sides of the cutting table 30, the cutter shaft 25 is positioned below the cutting table 30, two ends of the cutter shaft 25 are connected with the frame through bearings, the lower end of the cutter supporting groove 26 is hinged with the cutter shaft 25, the blades 27 are vertically arranged on the cutter supporting groove 26, the upper cutting edges of the blades 27 are inclined, the cutting edges far away from one end of the cutter shaft 25 are lifted upwards, and supporting bolts 28 capable of adjusting the cutting edge inclination of the blades 27 are arranged at the lower part of the cutter supporting groove 26.
When the pushing plate 6 horizontally pushes the bar 29 onto the cutting table 30, the rubbing plate 1 positions the bar 29 on the cutting table 30 and drives the bar 29 to roll forward, the blades 27 simultaneously rotate the two ends of the bar 29, and the bar 29 which is about to be cut off the end is continuously pushed out outwards, so that the cutting process of the bar 29 is completed. And setting: the bar 29 contacts the edge of the blade 27 until the bar 29 is cut, and the bar 29 rotates one revolution.
Sliding bearings are arranged at two ends of the V-shaped groove 4.1, the sliding bearings are sleeved on a vertical linear bearing cylinder 23, and the linear bearing cylinder 23 is fixedly connected to the frame.
The slots for accommodating the blades 27 at the two sides of the cutting table 30 are at least three, the slot width of the slots is larger than the thickness of the blades 27, and the hinge joint of the lower end of the cutter holder 26 and the cutter shaft 25 can be finely adjusted to move along the axial millimeter level of the cutter shaft 25.
The disc cam structure of the pushing part in the feeding system is used for pushing a bar blank to enter the next link, the first cam shaft 11 and the upper pressing plate crank 13 are positioned through a set screw and a shaft shoulder, one end of the L-shaped connecting piece 16 is provided with a bearing and is in line contact with the cam disc 10, and the other end of the L-shaped connecting piece 16 is fixed with the push plate 6 through a bolt. When a blank bar 29 enters the device, the first cam shaft 11 drives the cam disc 10 to rotate, the push plate 6 is pushed forward, after the bar 29 enters the V-shaped groove 4.1, the cam disc 10 drives the push plate 6 to start to enter a return stage, return to an initial position, and continue to push forward after the next root bar 29 enters, and the cycle is repeated.
The stepper motor 17 transmits motion to the first cam shaft 11 through the timing belt 9, the first cam shaft 11 transmits motion to the cam shaft 21 through the timing belt 9, and the cam shaft 21 rotates the cam 18. After the bar enters the V-shaped groove 4.1, the cam 18 drives the lifting rod 22 to move upwards, the lifting rod 22 pushes the lifting slide block 4 to ascend until the bar 29 enters the highest position, the washboard 1 pushes away the bar 29 forwards, at the moment, the cam 18 enters a return state, the lifting slide block 4 falls down, and when the bar falls to the lowest end, the cam 18 enters a resting state and waits for the next bar to enter the V-shaped groove 4.1.
The rubbing system is used for pushing the bar 29 to perform rolling cutting, when the bar 29 enters the cutting platform 30, the rubbing plate 1 starts to push the bar 29 to roll forwards, meanwhile, the bar 29 is pressed, when the bar 29 rolls over the cutting edge on the blade 27 for one circle, the end of the bar 29 is cut, cut waste falls into the waste collecting box through the discharge hole, and the processed bar falls and enters the bar collecting device.
The blades 27 are arranged in the cutter holder slots 26, the cutter holder slots 27 are connected with the cutter shaft 25 through bearings, and the axial positioning is realized between the cutter holder slots 27 by the cutter shaft 25, so that the precision is ensured. Before machining, the lengths of different machined bars are selected, and the cutter supporting grooves 27 with different intervals can be selected by manually rotating different compression screws 28, so that cutting modes with different lengths are selected.
According to the invention, through rubbing and pressing type processing, the rubbing pressure can be adjusted through the adjusting spring, the problems of easy deformation of clamping and low end face cutting precision caused by softness of the bar are solved, the used transmission structure is simple, the bar cutting function is easy to realize, the requirements of flatness and cutting precision of the cut end face can be better ensured, meanwhile, the distance between blades can be adjusted, and the cutting length of the bar can be changed. The cutting method with high precision and high reliability is provided for bar stocks (or hoses with certain rigidity) made of organic polymer materials such as plastics, nylon and the like in the market, and the cutting method has wide practical application value.
In the description of the present invention, it should be understood that the terms "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "axial," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "hinged," "connected," "secured," "fixedly attached," and the like are to be construed broadly, and may be, for example, fixedly attached, detachably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Claims (4)
1. A flexible bar cutter comprising: the feeding system, the jacking system and the rubbing and cutting system are driven by a stepping motor; the feeding system is provided with a first cam shaft (11), and the jacking system is provided with a second cam shaft (21); the stepping motor firstly transmits motion to a first cam shaft (11) of the feeding system through a synchronous belt, the first cam shaft (11) transmits motion to a second cam shaft (21) of the jacking system through the synchronous belt, and the transmission ratio of the first cam shaft (11) to the second cam shaft (21) is 1:1; the rubbing and cutting system also transmits motion through a first cam shaft (11) of the feeding system, so that the feeding system, the jacking system and the rubbing and cutting system synchronously and periodically move; the method is characterized in that:
the feeding system comprises: a push plate (6), a cam disc (10) and an L-shaped connecting piece (16); the center of the cam disc (10) is fixedly connected to the first cam shaft (11), the side surfaces of the cam disc (10) are provided with guide sliding grooves, the push plate (6) is fixedly connected with the L-shaped connecting piece (16), the end part of the L-shaped connecting piece (16) is provided with rollers, the rollers are embedded into the guide sliding grooves of the cam disc (10), and the two ends of the push plate (6) are in sliding fit with the two side surfaces of the frame through the arranged horizontal guide sliding blocks; one end of the L-shaped connecting piece (16) is provided with a bearing which is in line contact with the cam disc (10), and the other end of the L-shaped connecting piece (16) is fixed with the push plate (6) through a bolt; when the cam disc (10) rotates, the L-shaped connecting piece (16) drives the push plate (6) to periodically move forwards and backwards, and bar stock (29) to be cut can be pushed into the jacking system when the push plate moves forwards;
the jacking system comprises: a V-shaped groove (4.1), a lifting rod (22) and a cam (18); the bar (29) to be cut is horizontally placed on the V-shaped groove (4.1), the cam (18) is heart-shaped, the center of the cam (18) is fixedly connected to the second cam shaft (21), the lower end of the lifting rod (22) is in sliding contact with the outer cambered surface of the cam (18) through a roller, the upper end of the lifting rod (22) is fixedly connected with the V-shaped groove (4.1), and when the lifting rod (22) rises to the highest position due to the pushing action of the cam (18), the bar (29) rises to the highest position synchronously and then moves forward to the rubbing and cutting system horizontally under the pushing of the push plate (6);
the scrubbing and cutting system comprises: an upper pressing plate crank (13), an upper pressing plate connecting rod (14), a washboard support frame (3), a washboard (1), a cutter shaft (25), a cutter supporting groove (26), a blade (27) and a cutting table top (30); one end of the upper pressing plate crank (13) is fixedly connected to the end part of the first cam shaft (11), the other end of the upper pressing plate crank (13) is hinged with the upper pressing plate connecting rod (14), and the upper pressing plate connecting rod (14) is hinged with the end part of the washboard support frame (3);
the two ends of the washboard support frame (3) are in sliding fit with the two side surfaces of the frame through horizontal guide sliding blocks, a bearing seat (2) is further arranged on the upper portion of the washboard support frame (3), a support frame bottom plate (3.1) is arranged on the lower portion of the washboard support frame (3), two ends of one side of the washboard (1) are connected with the bearing seat (2) through bearings, an adjusting spring (1.1) for adjusting the rub-down pressure is further arranged on the washboard (1), and a through screw screwed with the support frame bottom plate (3.1) is arranged in the adjusting spring (1.1); when the first cam shaft (11) rotates, the washboard support frame (3) periodically slides back and forth under the linkage action of the upper pressing plate crank (13) and the upper pressing plate connecting rod (14), and then the washboard (1) is driven to move back and forth;
the cutting table top (30) is arranged at the lower part of the washboard (1), slots for accommodating blades (27) are formed in two sides of the cutting table top (30), the cutter shafts (25) are positioned below the cutting table top (30), two ends of the cutter shafts (25) are connected with the frame through bearings, the lower ends of the cutter supporting grooves (26) are hinged with the cutter shafts (25), the blades (27) are vertically arranged on the cutter supporting grooves (26), the upper cutting edges of the blades (27) are inclined, the cutting edges far away from one end of the cutter shafts (25) are lifted upwards, and supporting bolts (28) capable of adjusting the cutting edge inclination of the blades (27) are arranged at the lower parts of the cutter supporting grooves (26);
when the bar (29) is horizontally pushed onto the cutting table top (30) by the push plate (6), the bar (29) is positioned on the cutting table top (30) by the washboard (1), the bar (29) is driven to roll forward, the two ends of the bar (29) are simultaneously rotary-cut by the blade (27), and the bar (29) which is to be cut off the end part is continuously pushed out outwards, so that the cutting process of the bar (29) is completed.
2. A flexible bar cutter as recited in claim 1, wherein: setting: and in the process that the bar (29) contacts with the cutting edge of the blade (27) and the bar (29) is cut, the bar (29) rotates for one circle.
3. A flexible bar cutter as recited in claim 1, wherein: sliding bearings are arranged at two ends of the V-shaped groove (4.1), the sliding bearings are sleeved on a vertical linear bearing cylinder (23), and the linear bearing cylinder (23) is fixedly connected to the frame.
4. A flexible bar cutter as recited in claim 1, wherein: the slot for accommodating the blades (27) on two sides of the cutting table top (30) is provided with at least three slots, the slot width of the slot is larger than the thickness of the blades (27), and the hinge joint of the lower end of the cutter supporting groove (26) and the cutter shaft (25) can be finely adjusted to move along the axial millimeter level of the cutter shaft (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810839759.7A CN108994884B (en) | 2018-07-27 | 2018-07-27 | Flexible bar cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810839759.7A CN108994884B (en) | 2018-07-27 | 2018-07-27 | Flexible bar cutting machine |
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| Publication Number | Publication Date |
|---|---|
| CN108994884A CN108994884A (en) | 2018-12-14 |
| CN108994884B true CN108994884B (en) | 2023-05-05 |
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|---|---|---|---|---|
| CN109895155B (en) * | 2019-03-26 | 2021-07-27 | 西安理工大学 | Paper board slitting equipment and slitting method for hardcover book case |
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