CN212446526U

CN212446526U - Transmission structure and rub bag mechanism, flatten mechanism, cut mechanism, cutting device with transmission structure

Info

Publication number: CN212446526U
Application number: CN202020116163.7U
Authority: CN
Inventors: 郭矛; 黄步积
Original assignee: WENZHOU KEWANG MACHINERY CO Ltd
Current assignee: WENZHOU KEWANG MACHINERY CO Ltd
Priority date: 2020-01-18
Filing date: 2020-01-18
Publication date: 2021-02-02
Anticipated expiration: 2030-01-18

Abstract

The utility model provides a transmission structure and rub bag mechanism, flattening mechanism, cut mechanism, for cutting device transmission structure with hands, including rotatable cam and with the cam cooperation trun its rotary motion into linear elevating movement's transmission structure into, the transmission structure is lever drive structure or cam sleeve drive structure best. The utility model discloses trun into rotary motion into linear lifting motion, make in the cutting equipment cut the mechanism, flatten the mechanism, rub the mechanism with the hands and the mechanism of thermal-insulated upper and lower motion such as mechanism can adopt output torque such as motor or fuel engine for the driving piece to this simplifies the structure, reduces the volume, provides transmission efficiency, and, can also be through only setting up under the condition of a main shaft, drive simultaneously above-mentioned a plurality of mechanisms and move.

Description

Transmission structure and rub bag mechanism, flatten mechanism, cut mechanism, cutting device with transmission structure

Technical Field

The utility model relates to a cutting tool field especially relates to a cutting tool's transmission structure to and adopt the drive structure rub a bag mechanism, flatten the mechanism and cut the mechanism with the hands.

Background

An air cylinder is mostly adopted in the existing cutting equipment to drive a cutter, a flattening mechanism and other related mechanisms to do up-and-down lifting motion, in order to reduce the use of the air cylinder, the flattening mechanism is usually arranged on a mechanism with the cutter, or a transmission path is designed to transmit the motion of an air cylinder piston rod to the flattening mechanism from the bottom connection part of an air cylinder movable rod through a transmission structure with a complex structure, so that the flattening mechanism is linked with the cutting mechanism. Therefore, when the air cylinder is used as a main driving part, the transmission structure of the existing cutting equipment is often too complex. Other mechanisms such as the flattening mechanism and the like which need independent action are difficult to be completely independent from the cutting mechanism, and are easy to interfere with each other in the operation process, and the maintenance difficulty is large due to the complex structure and the mutually linked structure during maintenance.

Disclosure of Invention

The utility model provides a not enough to prior art, the utility model provides a cutting equipment's transmission structure, it can trun into rotary motion into linear motion, simple structure, the installation and maintenance of being convenient for simultaneously to can adapt to the motor and use as the driving piece, provide work efficiency.

To achieve the above object, the present invention provides a transmission structure, which includes a rotatable cam and a transmission structure cooperating with the cam to convert the rotation motion into linear motion, wherein the transmission structure is preferably a lever transmission structure or a cam sleeve transmission structure. In the structure, the transmission structure is provided with a power input end and a power output end, the power input end is a part which is matched and connected with the rotatable cam, and the power output end is one end or one side of a component which is used for being connected with other structures and transmitting the force outside the transmission structure.

The cooperation with the cam is actually performed in a direction perpendicular to the rotation direction of the cam, and the rotational motion is converted into the linear motion by using the approximately elliptical irregular path of the cam.

Through truning rotary motion into linear motion, can abandon the structural design who adopts the cylinder to be used for linear drive among the prior art, and adopt driving motor, output torque's such as small-size fuel engine drive power supply to use, can enough reduce the volume, provide structural stability, can also combine the rotation axis can wireless extension, have the characteristics of many places tie point, satisfy a plurality of mechanisms simultaneously and use and can not interfere with each other, also need not to design complicated transmission structure and link, consequently the utility model discloses can simplify current cutting equipment structure greatly to be favorable to it to reduce the volume.

The utility model discloses further set up as follows: the lever structure transmission structure comprises a lever, a lever seat and a connecting rod, wherein the lever is hinged and fixed on the lever seat, one end of the lever is in clearance fit with the cam to enable the lever to swing by taking the lever seat as a lever fulcrum, any one end part of the two end parts of the lever is hinged with one end of the connecting rod, and the other end of the connecting rod is provided with a connecting hole or a connecting head for connection.

The utility model discloses a lever is used for truning into linear motion with the rotary motion on the cam with cam clearance fit, and the simple structure of lever, stability, be convenient for processing and installation. Meanwhile, the linear motion transmitted by the cam to the lever perpendicular to the cam rotating surface can be received, and other noises (forces in other directions) can not be mixed, so that the conversion is simpler and more stable, the lever can not be abraded due to the influence of the noises, and the service life is long. In addition, the lever can change the upper and lower (assuming that the lever is horizontally arranged) amplitude of the two ends of the lever by adjusting the specific position of the lever seat, so that the adjustment can be carried out adaptively according to the specific situation of the specific cutting equipment.

The utility model discloses further set up as follows: the lever seat is positioned in the middle of the lever or close to any end of the lever, one end of the lever seat is in clearance fit with the cam, and the other end of the lever seat is used as a swinging end and connected with the connecting rod; or the end part of the other end of the lever is hinged on the lever seat, one end of the lever is used as a swinging end to be connected with the connecting rod, and meanwhile, the other end of the lever is in clearance fit with the cam.

The structure can flexibly and correspondingly adjust the positions of the power input end and the power output end of the lever according to a specific mechanism by changing the specific position of the lever seat, thereby fully adapting to practical application and having wide application range.

The utility model discloses further set up as follows: the cam sleeve transmission structure comprises a cam sleeve and a connecting rod, the cam sleeve is sleeved outside the cam and is in running fit with the cam, one end of the connecting rod is fixedly connected with the side face of the cam sleeve, and the other end of the connecting rod is provided with a connecting hole or a connecting head for connection.

The cam sleeve is stable in structure and convenient to install, and can stably and efficiently convert rotary motion into linear motion.

Preferably, a connecting seat used for being connected with the connecting rod is convexly arranged on the side surface of the cam sleeve.

For convenient connection and use, the utility model discloses further set up as follows: the connecting rod is a connecting screw rod or a straight rod, and two ends of the connecting rod are provided with hinge holes.

For adapting to practical use, the utility model discloses further set up as follows: the transmission structure further comprises a crank arm, one end of the crank arm is hinged with the other end of the connecting rod, and the other end of the crank arm is provided with a connecting hole or a connecting head for connection. The structure can convert the linear motion output by the transmission structure into rotation with small radian through the additionally arranged crank arm so as to adapt to mechanisms with special rotation requirements in cutting equipment, such as a bag rubbing mechanism.

Above-mentioned structure is convenient for be connected with the turning arm, the connecting hole or the connector that are used for connecting are seted up to the one end of connecting rod, and its other end is equipped with the bar groove, and the bar groove is the kidney-shaped groove best.

The utility model discloses further set up as follows: an anti-jump bulge corresponding to the position of the cam is arranged at the other end of the lever or near the other end of the lever, and/or a contact roller is arranged at the position of the lever, which is in clearance fit with the cam. The anti-jump protrusion is used for preventing the lever from jumping suddenly due to the fact that the protruding portion and other portions of the cam are excessively spaced, and the lever jumps suddenly at the next moment when the protruding portion is separated, so that the stability of the lever transmission structure is stabilized. The contact roller is used for reducing the friction force when the cam is in clearance fit with the lever, so that the transmission process is smoother.

The utility model also provides a rub a bag mechanism with hands, including rubbing a bag roller with hands and having added the transmission structure of turning arm, rub the other end of bag roller with hands and bag roller fixed connection, the power take off end of transmission structure can drive the one end small range of turning arm and move from top to bottom, and then drives the other end small range rotation of turning arm to the messenger rubs a bag roller with hands and takes place to rotate.

In order to enable the bag rubbing roller to automatically and quickly reset, the bag rubbing roller is preferably provided with a reset deflector rod, the reset deflector rod is connected with a reset spring, and the other end of the reset spring is used for being connected with a main body frame of the cutting equipment.

The utility model also provides a mechanism flattens, including clamp plate and the above arbitrary kind of transmission structure, the clamp plate is connected with transmission structure's power take off end to upper and lower motion under transmission structure's effect.

The utility model also provides a cutting mechanism, including cutter, cutter seat and the above any kind of transmission structure, the cutter is installed on the cutter seat, the cutter seat is connected and upper and lower motion under the effect of transmission structure with the cooperation of transmission structure.

The utility model also provides a cutting device uses transmission structure, including the foretell arbitrary a transmission structure.

The utility model has the advantages as follows:

the transmission structure of the utility model can be used in cooperation with power sources of output torque such as motors, etc., thereby expanding the possibility of using the motors by cutting equipment and increasing the application range of the cutting equipment; and the use of the air cylinder can be reduced, the corresponding structure is simplified by reducing the use of the air cylinder, and the volume of the specific mechanism is reduced, so that the installation and the maintenance are convenient.

The transmission structure of the utility model can meet the requirement that one power source is connected with a plurality of mechanisms, thereby simplifying the structure of the whole equipment, optimizing the structure and providing structural stability; moreover, the multiple mechanisms can be controlled to act by rotating a circle, and the control difficulty is greatly reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.

Fig. 2 is a schematic view of the overall structure of embodiment 1 of the present invention.

Fig. 3 is a schematic view of the overall structure of embodiment 2 of the present invention.

Fig. 4 is an overall schematic view of a bag rubbing mechanism according to an embodiment of the present invention.

Fig. 5 is a schematic view of the whole pressing mechanism according to embodiment 7 of the present invention.

Fig. 6 is a schematic view of the cutting mechanism according to embodiment 9 of the present invention.

Reference numerals: 1-a frame, 2-a driving motor, 3-a main shaft, 6-a bag rubbing roller, 7-a heat insulation plate/a pressure plate and 9-a cutter;

110-first cam, 120-first lever, 121-anti-bouncing protrusion, 130-first lever seat, 140-first connecting rod, 141-kidney-shaped slot, 150-crank arm, 160-reset arm, 170-reset spring, 210-second cam, 220-second lever, 221-contact roller, 230-second lever seat, 240-second connecting rod, 310-eccentric wheel, 311-eccentric hole, 320-cam sleeve, 321-threaded connector, 322-bearing, 323-elastic retainer ring, 330-eccentric connecting rod, 710-first fixed seat, 720-first connecting rod, 730-first spring, 740-balance rod, 910-cutter seat, 920-sliding rod, 930-guide plate, 940-guide post, 950-buffer spring, 960-connecting post, 970-mounting rack.

Detailed Description

The utility model provides a cutting equipment uses transmission structure, its include the cam and with the transmission structure of cam adaptation, the cam is installed on rotatable main shaft 3, this main shaft 3 can be rotated by the drive of a motor 2, also can be rotated by a fuel engine drive. The transmission structure matched with the cam means a transmission structure capable of converting the rotary motion of the cam into linear lifting motion, so that the rotary motion needs to be converted into the linear lifting motion in order to adapt to the use requirement in the cutting equipment, and most actions of cutting, flattening, heat insulation and the like in the cutting equipment are linear lifting motion except for a material conveying system.

Embodiment 1 as shown in fig. 1, the present embodiment provides a lever cam transmission structure, which is as follows: the action point of the first cam 110 is located between the first lever seat 130 and the swinging point, the first lever seat 130 is located at one end of the first lever 120, the first cam 110 is in clearance fit with the middle of the first lever 120, the other end of the first lever 120 swings up and down by taking the first lever seat 130 as a fulcrum of the first lever 120 and is used for connecting the first connecting rod 140, and the first connecting rod 140 is in transmission connection with a specific mechanism of the cutting equipment.

In order to facilitate the first cam 110 to act on the first lever 120, a contact roller 221 may be disposed at an acting point of the first lever 120, and a rolling surface of the contact roller 221 is disposed in clearance fit with an outer ring of the first cam 110 (i.e., a side surface of the first cam 110), so that, during a rotation process of the first cam 110, on one hand, friction may be reduced by using a rolling effect of the contact roller 221, and on the other hand, a contact time between the contact roller 221 and the first cam 110 may be prolonged by using a rolling process of the contact roller 221, thereby prolonging an acting time, which is beneficial to enhancing stability of a lever transmission structure and process control of a specific mechanism of a cutting device connected with the transmission structure.

In the above-described structure, moreover, the point of action of the first cam 110 acts on the other end of the first lever 120, since only a portion of the first cam 110 is protruded, when the protruded portion thereof is separated from the first lever 120 during the rotation, the other end of the first lever 120 or its vicinity is liable to jump instantaneously when the force is suddenly lost, therefore, the stability of the lever transmission structure is affected, and in order to avoid this point, in this embodiment, the anti-jump protrusion 121 is disposed on or near the other end of the first lever 120, and the anti-jump protrusion 121 corresponds to the position of the first cam 110 (where the position corresponds to the position of the anti-jump protrusion 121, when the other end of the first lever 120 swings to one side of the first cam 110, the anti-jump protrusion 121 is in clearance fit with the first cam 110 and is blocked by the first cam 110, for example, the anti-jump protrusion 121 may be disposed to be parallel to or intersecting with the outer ring of the first cam 110). Also, the size of the anti-jump protrusion 121 is preferably not smaller than the distance between the anti-jump protrusion 121 and the first cam 110 or 1/3, 1/2 thereof when the protruding portion of the first cam 110 acts on the first lever 120.

The anti-jump protrusion 121 acts as follows: when the convex part of the first cam 110 rotates away along with the rotation of the main shaft 3, the other end of the first lever 120 lacks pressing due to the leaving of the convex part of the first cam 110 and swings upwards at the moment when the convex part of the first cam 110 leaves, but due to the anti-jumping protrusion 121, the distance between the other end of the first lever 120 and the first cam 110 is shortened, and the situation that the other end of the first lever 120 suddenly jumps greatly is effectively avoided.

Of course, in addition to the above-mentioned structure of the anti-jump protrusion 121, a counterweight with a certain volume may be connected to the other end of the first lever 120 by a spring, and the motion of the end may be delayed based on an inertia force of the other end of the first lever 120 or an extension spring arranged between the other end of the first lever 120 and the mounting frame 970 of the cutting device.

In this embodiment, the first cam 110 is preferably a disk-shaped first cam 110 with a curved profile.

In this embodiment, the second connecting rod 140 may also be a connecting screw rod with two ends provided with hinge holes, and one end of the connecting screw rod is hinged to the swing end of the first lever 120, and the other end is hinged to a related component of the specific mechanism, so as to adapt to and overcome an arc path performed in the swing process of the first lever 120, and provide linear motion for the specific mechanism.

Besides the above structure, the first lever seat 130 can be located in the middle of the first lever 120, and the action point and the swing point of the first cam 110 are respectively located at two ends.

Embodiment 2 as shown in fig. 2, this embodiment also provides a lever transmission structure, which is different from the embodiment in that: the second lever seat 230 is positioned between the action point and the swinging point of the second cam 210, namely the second lever seat 230 is arranged close to one end of the second lever 220, the other end or the vicinity of the other end of the second lever 220 is in clearance fit with the second cam 210, one end of the second lever 220 swings up and down by taking the second lever seat 230 as a lever fulcrum and is used for being connected with a second connecting rod 240, and the second connecting rod 240 is in transmission connection with a specific mechanism of the cutting equipment.

Embodiment 3 as shown in fig. 3, the present embodiment provides a cam sleeve transmission structure: the cam sleeve transmission structure includes a cam sleeve 320 and a connecting rod, the cam sleeve 320 is sleeved outside the cam and is rotatably matched with the cam (i.e. the cam and the cam sleeve 320 can rotate relatively), in this embodiment, in order to better adapt to the nesting relationship between the cam and the cam sleeve 320, as shown in the figure, the cam is a circular eccentric 310, and the cam sleeve 320 is a circular sleeve ring. The bottom side of the circular collar is fixedly connected with one end of an eccentric connecting rod 330, and the other end of the eccentric connecting rod 330 is used for being connected with a specific mechanism of the cutting equipment. For the convenience of connection, as shown in the figure, a threaded connector 321 is further convexly arranged on the side face of the bottom of the circular sleeve ring, and an internal thread for connection is formed in the threaded connector 321, so that the fixed connection can be realized through the thread only by arranging an external thread at one end of the eccentric connecting rod 330. And the other end of the eccentric link 330, in order to reduce the vibration and improve the stability of the transmission, can be set up as a connection hole structure, so that it is hinged when being connected with the concrete mechanism of the cutting equipment.

Furthermore, in order to improve the tightness of the rotating fit between the cam and the cam sleeve 320 and reduce friction, in the embodiment, a bearing 322 and a circlip 323 may be further assembled between the cam and the cam sleeve 320, as shown in the figure, the bearing 322 may preferably adopt a deep groove ball bearing 322, which is arranged between the circlip 323 and the cam, and the circlip 323 functions as follows: firstly, the gap is filled to ensure the tight assembly between the deep groove ball bearing 322 and the cam sleeve 320; and secondly, acts as a cushion between the eccentric wheel 310 and the cam sleeve 320 by its elastic characteristics.

In this embodiment, the eccentric link 330 may be a connecting screw member having hinge holes at two ends, and the bottom side of the circular sleeve ring may be provided with a hinge seat in a protruding manner, so that two ends of the eccentric link 330 are respectively hinged to the cam sleeve 320 and the specific mechanism of the cutting device to adapt to and overcome the linear offset that may be generated during the rotation of the cam, thereby improving the linearity of the motion output by the transmission structure as much as possible.

Embodiment 4 this embodiment provides a push rod transmission structure: the ejector rod transmission structure comprises an ejector rod, an arc-shaped surface is arranged at the top end of the ejector rod and is in clearance fit with the cam, and a connecting hole is formed in the bottom end of the top end and is used for being connected with the connecting rod. The transmission structure provided in the present embodiment can be regarded as a simplification of the first embodiment, and an arc-shaped surface is used instead of the cam sleeve 320, and the overall structure is simpler but less stable than that of embodiment 3.

In this embodiment, the cam is preferably an eccentric 310 followed by a cam disk of varying curve profile.

In addition, in the above embodiment, the cam sleeve transmission structure and the ejector rod transmission structure are applied to a specific mechanism which is arranged opposite to the main shaft 3 under the condition that no other additional component is arranged; the lever transmission structure is particularly suitable for the condition that a specific mechanism has a certain position deviation with the main shaft 3, and the lever transmission structure can shift the transmitted force in the radial direction of the main shaft 3 by a certain amount through the lever action so as to adapt to the specific use condition.

Embodiment 5 this embodiment provides a new structure for the connecting rod of embodiments 1 to 4: which keeps the structure of one end of the connecting rod (shown as the end close to the cam, also seen as the top end) unchanged, and the other end connecting it with the specific mechanism of the cutting apparatus is provided with a slot. The slotting can be a straight line slot or an arc slot, a rolling part is arranged on a specific mechanism of the cutting equipment, and the rolling part is embedded in the slotting to realize rolling fit. The rolling parts are matched with the grooves, hinge connection can be replaced, and the assembly is free and open compared with hinge connection, and the stability is high. Through the rolling piece and the slot, the conversion of the lifting motion into horizontal motion or inclined lifting motion or intermittent motion is also convenient to realize or realize by matching with other components.

Embodiment 6 as shown in fig. 4, this embodiment provides a bag rubbing mechanism, which includes a bag rubbing roller 6, a bag rubbing plane (not shown in the figure) including a first cam 110 disposed on a main shaft 3 and a lever transmission structure adapted to the first cam 110, and this embodiment adopts the lever-first 120 transmission structure described in embodiment 1, and the bag rubbing roller 6 has left and right sides serving as shaft ends and is rotatably mounted on a frame 1 of a cutting apparatus or other mechanisms of the cutting apparatus. The bag rubbing plane is a plane with certain roughness, can be made of rubber and the like, and is used for rubbing materials with an upper layer and a lower layer which are attached, such as woven bags, plastic film bags and the like, apart by a large friction force generated by matching with the bag rubbing roller 6 (even if the upper layer and the lower layer are separated). The bag-rolling plane is usually provided in a fixed part of the cutting apparatus, without excluding that it may be provided equally on other mechanisms of the cutting apparatus.

And make few needs arc line motion or similar other mechanisms in the cutting equipment use, need add connecting lever 150, connecting lever 150 has two side arms of certain contained angle of interval (45 ~ 165 °), and concrete structure is as follows: the main shaft 3 is positioned above the bag rolling roller 6 and is arranged parallel to the bag rolling roller 6, the first cam 110 is sleeved and fixed on the main shaft 3, the lever transmission structure is arranged below the first cam 110, one end of the first lever 120 is used as an acting end, and a contact roller 221 is arranged near the end part and close to the center of the first lever 120. The contact roller 221 is arranged in clearance fit with the cam, and the other end of the first lever 120 is a swinging end which is hinged and fixed with the first connecting rod 140. The first lever seat 130 is located in the middle of the first lever 120, and in order to avoid jumping, an anti-jumping protrusion 121 is further disposed near the end of the first lever 120 at the acting end. The anti-jump protrusion 121 is a cylindrical object whose side surface is parallel to the side surface of the cam.

The bottom end of the first connecting rod 140 is provided with a coaxial waist-shaped through groove, the waist-shaped through groove is in linkage connection with the bag rubbing roller 6 through a connecting lever 150, one end of the connecting lever 150 is radially and fixedly connected to the bag rubbing roller 6, and the other end of the connecting lever is embedded in the waist-shaped through groove and can move up and down in the waist-shaped through groove. A reset structure is also arranged on the bag rubbing roller 6: the bag rubbing roller 6 is provided with a reset arm 160 which has the same structure and the same connection with the crank arm 150, the reset arm 160 is connected with the cutting device through a reset spring 170, and the force applied by the reset spring 170 to the reset arm 160 needs to be opposite to the direction in which the bag rubbing roller 6 rotates under the action of the transmission structure.

When the first cam 110 operates to move the first link 140 upward, one side wall of the connecting lever 150 is located at the bottom of the slot of the first link 140 — so that the side arm of the connecting lever 150 moves upward along with the first link 140, and the other side arm of the connecting lever 150 and the mechanism fixedly connected with the other side arm of the connecting lever 150 are driven to rotate. When the first cam 110 operates to move the first link 140 downward, the other side wall of the crank arm 150 abuts against the top of the slot of the first link 140 — causing the side wall of the crank arm 150 to move upward following the first link 140. Of course, the slot of the first link 140 is preferably a kidney-shaped slot 141, which is convenient for processing and also beneficial to improving the stability of the fit.

The working process of the bag rubbing mechanism of the embodiment is as follows: the main shaft 3 rotates to drive the protrusions to rotate circumferentially, when the action starts, the protruding portion of the first cam 110 does not abut against the contact roller 221, the side surfaces of the other portions of the first cam 110 abut against the contact roller 221, and the crank arm 150 is located at the bottom of the kidney-shaped through groove. With the rotation of the first cam 110, when the protruding portion of the first cam 110 moves to the contact roller 221, because the portion is protruding, the action end of the first lever 120 is pressed downward, and simultaneously the other end of the first lever 120 swings upward to drive the second first link 140 to move upward, when the first link 140 moves upward, it also drives one end of the crank arm 150 matching with the first link to move upward, and because the end of the crank arm 150 is movably connected with the second first link 140, and a certain included angle is formed between the other end of the crank arm 150 and the end, when one end of the crank arm 150 moves upward, the other end of the crank arm 150 drives the bag rubbing roller 6 to rotate by a small angle, so that the bag rubbing roller 6 rotates relative to the bag rubbing plane, and two layers of materials between the bag rubbing roller 6 and the bag rubbing plane are rubbed apart, thereby completing one bag rubbing action. Then, when the convex portion of the first cam 110 moves away from the contact roller 221, the action end of the first lever 120 swings upward due to the lost force, the swing end of the first lever 120 swings downward, and the return arm 160 cooperates with the return spring 170 to pull the bagging roll 6 back to the original position. When the anti-jumping protrusion 121 contacts with the first cam 110, the upward swing is stopped, and the other part of the first cam 110 is in clearance fit with the contact roller 221 continuously, so that the bag rubbing roller 6 works intermittently.

Embodiment 7 as shown in fig. 5, a flattening mechanism comprises a pressure plate 7 and any one of the transmission structures of embodiments 1 to 5, wherein the transmission structure is used for linking the pressure plate 7 and a main shaft 3. The pressing plate 7 is a bar-shaped rod which is provided with a flat and smooth plane for realizing the flattening action by the clearance fit with the flattening surface of the cutting equipment. The platen 7 is generally parallel to the cutter holder 910 to ensure accurate cutting.

The connection between the pressure plate 7 and the transmission structure can be divided into two connection relations: first, direct connection: the pressing plates 7 are symmetrically arranged, and the centers of the pressing plates are directly and fixedly connected or hinged with a connecting rod for outputting actions in the transmission structure; second, indirect connection: other components for changing the transmission path of the force are further arranged between the pressure plate 7 and the transmission structure, for example, a balance bar 740 is arranged in parallel with the pressure plate 7, the balance bar 740 is a bar-shaped bar which is symmetrically arranged and the center of which is directly fixedly connected or hinged with a connecting rod of the output action in the transmission structure, and the bar-shaped bar and the pressure plate 7 are connected into a whole through at least two uniformly distributed connecting rods 720. The connecting rod of the transmission structure transmits the force to the middle part of the balancing rod 740, the middle part of the balancing rod is dispersed to the whole rod body, and the uniformly distributed connecting rods 720 are used for dispersing the pressure provided by the transmission structure and uniformly transmitting the force to the pressing plate 7, so that the pressing plate 7 is uniformly and stably contacted with the pressing surface.

The transmission structure of the present embodiment can preferably adopt the lever transmission structure of embodiment 2 or the cam sleeve transmission structure of embodiment 3. Similar to the layout in embodiment 6, the lever transmission structure or the cam sleeve transmission structure is disposed above the pressing plate 7, and the specific connection and action processes are as follows: in the lever transmission structure, the second connecting rod 240 may adopt a connecting screw rod having hinge holes at both ends, one end of the connecting screw rod is hinged to the swing end of the second lever 220, and the other end is directly hinged to the middle of the pressing plate 7 or the balance bar 740. In order to improve the contact stability of the pressing plate 7 and the flattening surface, a first spring 730 is preferably arranged between the connecting screw rod and the pressing plate 7 or the balance bar 740, or between the balance bar 740 and the pressing plate 7, or between the equalizer bar and the cutting device, in this embodiment, the first spring 730 is arranged on the first connecting rod 720 between the balance bar 740 and the pressing plate 7, meanwhile, a first fixing seat 710 is arranged on the cutting device for the first connecting rod 720 to pass through, and the first fixing seat 710 plays a supporting role on one hand, and on the other hand, the surface of the first fixing seat is used for being matched with the surface of the pressing plate 7 or the balance bar 740 to form a step surface for installing the first spring 730.

In the above structure, when the second cam 210 rotates along with the main shaft 3, when the protruding part rotates to abut against the second lever 220, the acting end of the second cam 210 is at the same side as the swinging end of the second lever 220 in the first condition of the lever transmission structure, so as to drive the connecting screw to move downwards, and no matter the pressing plate 7 is directly connected or indirectly connected with the connecting screw, the pressing plate 7 can be in contact with the pressing surface at a slow speed under the action of the first spring 730. When the protruding portion of the second cam 210 rotates away from the second lever 220, the action end and the swing end of the second lever 220 are lifted upwards to drive the connecting screw to move upwards, and under the action of the first spring 730, the pressing plate 7 moves upwards after a short time delay.

If the cam sleeve transmission structure is adopted, the bottom end of the third connecting rod of the cam sleeve transmission structure is hinged with the pressing plate 7 or the middle part of the balance rod 740, and when the longer diameter side of the eccentric wheel 310 in the cam sleeve 320 rotates to the bottom, the connecting rod is located at the lowest position; when the shorter diameter side of the eccentric 310 in the cam sleeve 320 is rotated to the bottom, the connecting rod will be in the highest position; when the longer diameter of eccentric 310 within cam sleeve 320 is rotated away from the bottom of cam sleeve 320, the connecting rod will rise from the lowermost position, whereas the connecting rod will fall from the uppermost position. By using the above process, the up-and-down movement process of the pressing plate 7 can be realized.

Embodiment 8 referring to fig. 5, an insulation mechanism comprises an insulation board 7 and a transmission structure of any one of embodiments 1 to 5, wherein the transmission structure is used for linking the insulation board 7 with a main shaft 3. The heat-insulating plate 7 is made of heat-insulating material such as wood, asbestos, vacuum heat-insulating plate 7, etc., and in this case, it is preferable to use an insulating plywood made of wood. The heat insulation rubber plate is disposed parallel to the cutter base 910, but preferably perpendicular to the plane of the material, and has a certain height to isolate the cutter base 910 from the surroundings, so as to prevent the heat dissipated from the heat insulation rubber plate during the cutting process of the heat cutter from affecting the surrounding components or materials.

The connection action process of the push rod transmission structure and the lever transmission structure in the embodiment 2 is specifically explained in the embodiment: the basic layout is similar to that of the

embodiments

2 and 3, the ejector rod transmission structure is arranged above the heat insulation seat, in order to ensure the structural stability of the heat insulation plate 7, the heat insulation plate 7 is fixed on the heat insulation seat, when the heat insulation seat is connected with the ejector rod transmission structure, the heat insulation seat is directly connected with the connecting rod or indirectly connected with the connecting rod through a balancing rod 740, and when the heat insulation seat is directly connected, the middle part of the top of the heat insulation seat is directly hinged and fixed with the bottom end of the connecting rod; when in indirect connection, the middle part of the balance bar 740 is directly hinged and fixed with the bottom end of the connecting rod, and at least two uniformly distributed connecting rods are arranged between the balance bar 740 and the heat insulation seat for connection and fixation.

In order to keep the ascending and descending processes of the heat insulation plate 7 stable, a buffer spring 950 can be arranged between the connecting rod and the heat insulation seat or the balance bar 740, or between the balance bar 740 and the heat insulation seat, or between the balance bar 740 and the cutting device.

In this embodiment, the connection structure and the operation process when the cam sleeve transmission structure is adopted refer to embodiment 9, and are not described again.

It should be noted that, in the above embodiments 6 to 8, when the specific mechanism is applied, only one set of the transmission structure described in embodiment 1 is specifically described, and actually, in the specific application process, the number of the transmission mechanisms used for the heat insulation mechanism, the flattening mechanism, and the bag rolling mechanism, such as the cutting mechanism mentioned in the following embodiment 9, may be added according to the structural design of the device body, the installation place of the device, and the like, and the specific description thereof employs two sets of transmission structures. Of course, the transmission structure can adopt the same technical scheme or different technical schemes, and only the transmission structure and the transmission structure can be adjusted to be synchronous.

Embodiment 9 is a cutting mechanism including a cutter holder 910, and any one of the transmission structures of embodiments 1 to 5, wherein the transmission structure is configured to couple the cutter holder 910 to the spindle 3 in a linkage manner, and is capable of converting a rotational motion of the spindle 3 into a linear motion to drive the cutter holder 910 to move up and down. For convenience of cutting, the cutting device is further provided with a cutting surface which is matched with the cutter seat 910 for cutting, and the cutting plane can also be made of heat insulation materials.

Embodiment 10 as shown in fig. 6, a cutting device includes a frame 1, a motor 2, a main shaft 3, a cutter holder 910, and any one of the transmission structures of embodiments 1 to 5.

The embodiment is specifically explained by adopting a cam sleeve transmission structure: a main shaft 3 is transversely and rotatably arranged on the frame 1, a driving motor 2 is arranged on any side of the frame 1 and is preferably coaxially fixed with the main shaft 3, and the main shaft 3 can be driven to rotate when the driving motor 2 rotates. The middle upper portion of frame 1 transversely is fixed with an installation frame 970, is provided with two supporting seats on the installation frame 970, offers the horizontal through-hole that size and 3 diameters of main shaft suit, and main shaft 3 passes from horizontal through-hole on the supporting seat. The support seat is used for supporting the middle part of the main shaft 3 and preventing the main shaft from bending and deforming.

The present embodiment adopts two sets of cam sleeve transmission structures, which are respectively arranged at two ends of the main shaft 3: two eccentric wheels 310 are fixedly sleeved at two ends of the main shaft 3 respectively. The outer ring of the eccentric wheel 310 is rotatably connected with the cam sleeve 320 into a whole through a bearing 322 and an elastic sleeve. The guide plate 930 is mounted below the guide plate 930 through the connecting posts 960 at both sides, and can move up and down relative to the mounting frame 970, but the lifting distance is not longer, preferably 1-10 cm. The guide plate 930 is provided with a guide hole in a vertical direction, and a slidable guide post 940 is disposed in the guide hole. The top end of the eccentric connecting rod 330 is connected with a thread connecting seat convexly arranged at the bottom of the eccentric cam, and the bottom end of the eccentric connecting rod 330 passes through the mounting frame 970 and is hinged with a guide post 940 arranged in the guide hole. In this embodiment, the guide post 940 is sleeved with a buffer spring 950, one end of the buffer spring 950 abuts against the top end of the guide post 940, and the other end abuts against the upper surface of the guide plate 930.

The cutter holder 910 is located right below the guide 930, corresponds to the same end positions of the guide 930, and is parallel to each other. The cutter holder 910 and the guide plate 930 are connected together by a plurality of sliding rods 920.

As can be seen from the middle-lower part of fig. 6, the bottom of the guide pillar 940 and the top of the seat of the cutter holder 910 are spaced apart from each other, the spacing is smaller than the stroke of the guide pillar 940, and the vertical distance between the guide pillar 940 and the cutting surface of the cutter holder 910 is slightly smaller than the stroke of the guide pillar 940, when the guide pillar 940 is forced to move downward to the top of the seat of the cutter holder 910, the seat of the cutter holder 910 is pushed downward to drive the cutter holder 910 to move toward the cutting surface and finally contact with the cutting surface, so as to complete one cutting, and after the cutting is completed, the guide pillar 940 is reset under the combined action of the buffer spring 950 and the cam sleeve.

For ease of installation, the holder 910 may be slidably mounted to the frame 1, with the guide 930 still fixed to the frame 1.

Embodiment 11 this embodiment provides a transmission for a cutting device comprising a transmission as described in any of the previous paragraphs.

To sum up, the utility model provides a can use the transmission structure of cutting equipment of output torque's driving piece such as motor 2 or fuel engine, it passes through cam sleeve 320 or lever structure, combine the connecting rod to trun into rotary motion into the linear lifting motion in above-mentioned embodiment, can be applied to and cut the mechanism, flattening mechanism, rub bag mechanism and thermal-insulated mechanism etc. up-and-down motion's mechanism use, and, can also be through only setting up under the condition of a main shaft 3, drive above-mentioned a plurality of mechanisms simultaneously and act, utilize cam sleeve 320 when establishing on main shaft 3 its bulge's orientation different earlier of controlling a plurality of mechanisms, back action, realize that main shaft 3 rotates the round, once control all actions, greatly reduced the operation degree of difficulty of cutting equipment, the work efficiency of equipment has been improved.

Claims

1. A transmission structure is characterized in that: the cam mechanism comprises a rotatable cam and a transmission structure which is matched with the cam to convert the rotation motion of the rotatable cam into linear motion, wherein the transmission structure is a lever transmission structure or a cam sleeve transmission structure.

2. The transmission structure of claim 1, wherein: the lever structure transmission structure comprises a lever, a lever seat and a connecting rod, wherein the lever is hinged and fixed on the lever seat, one end of the lever is in clearance fit with the cam to enable the lever to swing by taking the lever seat as a lever fulcrum, any one end part of the two end parts of the lever is hinged with one end of the connecting rod, and the other end of the connecting rod is provided with a connecting hole or a connecting head for connection.

3. The transmission structure of claim 2, wherein: the lever seat is positioned in the middle of the lever or close to any end of the lever, one end of the lever seat is in clearance fit with the cam, and the other end of the lever seat is used as a swinging end and connected with the connecting rod; or the end part of the other end of the lever is hinged on the lever seat, one end of the lever is used as a swinging end to be connected with the connecting rod, and meanwhile, the other end of the lever is in clearance fit with the cam.

4. The transmission structure of claim 1, wherein: the cam sleeve transmission structure comprises a cam sleeve and a connecting rod, the cam sleeve is sleeved outside the cam and is in running fit with the cam, one end of the connecting rod is fixedly connected with the side face of the cam sleeve, and the other end of the connecting rod is provided with a connecting hole or a connecting head for connection.

5. The transmission structure of claim 4, wherein: and a connecting seat used for being connected with the connecting rod is convexly arranged on the side surface of the cam sleeve.

6. A transmission according to claim 2 or 3, wherein: the transmission structure further comprises a crank arm, one end of the crank arm is hinged with the other end of the connecting rod, and the other end of the crank arm is provided with a connecting hole or a connecting head for connection.

7. The transmission structure of claim 6, wherein: one end of the connecting rod is provided with a connecting hole or a connector for connection, and the other end of the connecting rod is provided with a strip-shaped groove.

8. The transmission structure of claim 7, wherein: the strip-shaped groove is a kidney-shaped groove.

9. The transmission structure of claim 2, wherein: an anti-jump bulge corresponding to the position of the cam is arranged at the other end of the lever or near the other end of the lever, and/or a contact roller is arranged at the position of the lever, which is in clearance fit with the cam.

10. A rub a bag mechanism with hands, its characterized in that: comprises a bag rubbing roller and the transmission structure of claim 6, wherein the other end of the bag rubbing roller is fixedly connected with the bag rubbing roller.

11. The bag rolling mechanism according to claim 10, wherein: the bag rubbing roller is provided with a reset deflector rod, the reset deflector rod is connected with a reset spring, and the other end of the reset spring is used for being connected with a main body frame of the cutting equipment.

12. A flattening mechanism is characterized in that: comprising a pressure plate and a transmission structure according to any of claims 1-9, the pressure plate being connected to the transmission structure.

13. The utility model provides a cut mechanism which characterized in that: comprising a cutter, a cutter seat and a transmission structure as claimed in any one of the claims 1 to 9, wherein the cutter is arranged on the cutter seat, and the cutter seat is connected with the transmission structure in a matching way.

14. The utility model provides a cutting device is with transmission structure which characterized in that: comprising a transmission construction according to any of claims 1-9.