CN107225801B - Paper bag machine closes end device and paper bag machine - Google Patents
Paper bag machine closes end device and paper bag machine Download PDFInfo
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- CN107225801B CN107225801B CN201710653825.7A CN201710653825A CN107225801B CN 107225801 B CN107225801 B CN 107225801B CN 201710653825 A CN201710653825 A CN 201710653825A CN 107225801 B CN107225801 B CN 107225801B
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Abstract
The invention provides a paper bag machine bottom closing device and a paper bag machine, which belong to the field of bag making equipment. The paper bag machine comprises a machine body, a bottom closing device and a large hub part, wherein the bottom closing device and the large hub part are arranged on the machine body; the axis of the bottom closing shaft is parallel to the axis of the large hub component, and the poking plate is close to the large hub component, so that a paper bag can be contained between the poking plate and the large hub component; the plectrum is separated from the big hub component all the time when in operation. The bottom closing shaft of the bottom closing device is driven by the cylindrical spur gear, the poking piece is not contacted with the circumferential surface of the large hub part during working, the jump caused by flexible driving of the traditional chain type bottom closing device is reduced, the cylindrical spur gear is driven more stably and efficiently, the space is saved, the modularization of the bottom closing part of the paper bag machine is realized, and the beneficial reference and reference are provided for future expansion of machine types and research and development.
Description
Technical Field
The invention relates to the field of bag making equipment, in particular to a paper bag machine bottom closing device and a paper bag machine.
Background
For the paper bag forming process, the bottom closing process is the last step of process. The traditional paper bag machine adopts a chain type bottom closing rod structure to realize a bottom closing process, thereby completing the manufacturing process of the paper bag.
In recent years, along with the development of paper bag machines and the demands of customers, the bag making speed of the paper bag machines is greatly improved, and the conventional chain type bottom closing rod structure exposes various problems, such as large impact on a large hub surface under the action of centrifugal force when the bottom closing rod is in a high-speed state, and serious abrasion on the bottom closing rod. After a certain abrasion, the bag making speed is suddenly increased, so that the bottom closing rod is suddenly broken,
because the broken parts can be thrown out from the rear at high speed under the high-speed transmission of the chain, certain potential safety hazards are brought to field debugging and operators. And the chain type bottom closing rod structure occupies a larger space, which is not beneficial to reducing the space occupation rate of bag making equipment and is not beneficial to realizing the modularization of the equipment product structure.
In paper bag machine equipment in recent years, along with expansion and updating of the equipment, the traditional chain type bottom rod closing device can not improve the overall performance of the equipment, and the durability of the bottom rod closing device is greatly shortened in a high-speed running state, so that a great potential safety hazard exists.
Disclosure of Invention
The invention provides a paper bag machine bottom closing device and a paper bag machine, and aims to solve the problems of the paper bag machine bottom closing device and the paper bag machine in the prior art.
The embodiment of the invention is realized as follows:
the utility model provides a paper bag machine closes end device which characterized in that, includes drive mechanism and plectrum, the plectrum connect in drive mechanism, drive mechanism can drive the plectrum rotates around the axis that is perpendicular to plectrum.
In one embodiment of the invention: the transmission mechanisms are two groups, the two groups of transmission mechanisms are connected to the bottom closing shaft, each group of transmission mechanisms is connected with one poking piece, and the two poking pieces are symmetrically arranged; the transmission mechanism can drive the two poking sheets to rotate in a symmetrical mode.
In one embodiment of the invention: the transmission mechanism is driven by the combined bottom shaft, and a transmission gear is arranged at the end part of the combined bottom shaft; the poking piece is parallel to the axis of the bottom closing shaft.
In one embodiment of the invention: the gear box is arranged outside the transmission mechanism, a cam disc is fixedly arranged outside the gear box, and the cam disc is provided with an uneven working surface; the side part of the poking piece is connected with an adjusting piece, and the adjusting piece is attached to the working surface; when the plectrum rotates to work, the adjusting piece can move along the working surface so as to drive the plectrum to fluctuate along the contour of the working surface.
In one embodiment of the invention: each group of transmission mechanism comprises a shifting piece shaft and a pair of bevel gear pairs, and the shifting piece shaft penetrates through the cam disc; the side part of the plectrum shaft is connected with a swinging block fixed block, the swinging block fixed block is pin-connected with a swinging block, and the plectrum and the adjusting piece are both connected with the swinging block; the rotation axis of the swinging block around the swinging block fixing block is perpendicular to the axis of the shifting piece shaft.
In one embodiment of the invention: a blind hole is formed in the top of the plectrum shaft, and a spring is inserted into the blind hole; the top of the blind hole forms a conical opening, and the spring extends to the top of the blind hole; the swing block fixing block is connected with a spring top piece, one side of the spring top piece is provided with a convex column perpendicular to the spring top piece, and the convex column is inserted into the spring.
In one embodiment of the invention: the end part of the poking piece is arranged above the spring top piece and is attached to the spring top piece; the adjusting piece is a bearing, and the axis of the adjusting piece is parallel to the plane where the plectrum is located; the plectrum is integrated into a whole structure, and the plectrum includes linkage segment and operating segment, the linkage segment is rectangular structure basically, the operating segment is triangle-shaped structure basically.
In one embodiment of the invention: the bottom closing shaft is of a hollow structure and comprises a first end and a second end; the inside of the bottom closing shaft is connected with an adjusting screw rod, and one end of the adjusting screw rod extends out of the bottom closing shaft from the first end and is connected with a locking nut; the transmission gear is connected to the second end, the second end is of a taper sleeve structure, an inner cavity is formed in the inner side of the second end, and an opening of a part of the inner cavity, which is close to the outer side, is larger; the part of the adjusting screw close to the second end is connected with a frustum, and the inclined plane of the frustum is matched with the inclined plane of the inner cavity; and adjusting the lock nut can enable the adjusting screw rod to move inside the bottom closing shaft so as to enable the second end of the bottom closing shaft to be in transmission connection with or separated from the transmission gear.
In one embodiment of the invention: and an adjusting hand wheel is arranged at the outer side of the first end.
The paper bag machine comprises a machine body, a bottom closing device and a large hub part, wherein the bottom closing device and the large hub part are arranged on the machine body; the bottom closing device comprises a bottom closing shaft, two groups of transmission mechanisms are arranged on the bottom closing shaft at intervals, the two groups of transmission mechanisms are connected with poking sheets, and the two poking sheets are symmetrically arranged; the axis of the bottom closing shaft is parallel to the axis of the large hub component, and the poking plate is close to the large hub component so that a paper bag can be accommodated between the poking plate and the large hub component;
the gear box is arranged outside the transmission mechanism, a cam disc is fixedly arranged outside the gear box, and the cam disc is provided with an uneven working surface; the side part of the poking piece is connected with an adjusting piece, and the adjusting piece is attached to the working surface; the driving mechanism can drive the plectrum to rotate and work, and the plectrum rotates during operation the regulating part can follow the working face removes and then drives the plectrum along the contour fluctuation of working face makes the plectrum during operation all the time with big hub part separation.
The beneficial effects of the invention are as follows: the paper bag machine bottom closing device obtained through the design can meet the requirement of improving the transmission speed under the transmission of two pairs of straight bevel gears, and the bottom closing device provides powerful guarantee for improving the speed of integral equipment (paper bag machine). The problem that the traditional bottom closing device impacts the circumferential surface of the large hub part under high-speed operation is effectively solved, and the poking piece of the bottom closing device is not contacted with the circumferential surface of the large hub part, so that the durability and the service life of the poking piece are greatly protected, the situation that the poking piece is broken due to abrasion can not occur under a high-speed state, the equipment is prevented from threatening the safety of debugging and operators, and the overall performance index of the equipment is further improved.
According to the paper bag machine obtained through the design, the bottom closing shaft of the bottom closing device is driven by the cylindrical straight gear, and the poking piece is not contacted with the circumferential surface of the large hub part during working, so that the jump caused by flexible driving of the traditional chain type bottom closing device is reduced, the cylindrical straight gear is driven more stably and efficiently, the space is saved, the modularization of the bottom closing position of the paper bag machine is realized, and the beneficial reference and reference are provided for future expansion models and research and development.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a paper bag machine according to an embodiment of the present invention;
fig. 2 is a schematic front view of a paper bag machine bottom closing device according to an embodiment of the present invention;
FIG. 3 is a schematic front view of a bottom closing device of a paper bag machine in operation according to an embodiment of the present invention;
fig. 4 is a schematic partial structure of a paper bag machine bottom closing device according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a paper bag machine bottom closing device provided by an embodiment of the invention;
FIG. 6 is a schematic view in partial cross-section of a paper bag machine bottom closing device provided by an embodiment of the invention;
FIG. 7 is a schematic cross-sectional view of the connection of the bottom closing shaft and the adjusting screw of the bottom closing device of the paper bag machine provided by the embodiment of the invention;
fig. 8 is a schematic front view of a pulling piece in a paper bag machine bottom closing device according to an embodiment of the present invention;
FIG. 9 is a schematic cross-sectional view of a second end of a bottom closing shaft in a bottom closing device of a paper bag machine according to an embodiment of the present invention;
fig. 10 is a schematic structural view of a paper bag machine bottom closing device according to an embodiment of the present invention.
Icon: 100-a bottom closing device; 110-closing a bottom shaft; 111-a first end; 113-a second end; 115-lumen; 116-gap; 117-adjusting the hand wheel; 119-a transmission gear; 121-a sleeve; 123-gear box; 130-a transmission mechanism; 131-first straight bevel gear; 133-a second spur gear; 135-a plectrum shaft; 137-blind hole; 139-a spring; 141-a pendulum block; 143-a pendulum block fixing block; 145-fixing base; 150-cam plate; 151-working surface; 153-needle bearings; 155-spring top sheet; 157-a post; 170-adjusting the screw; 171-lock nut; 173-cushion blocks; 175-a frustum; 180-pulling piece; 181-connection section; 183-working section; 185-hole matching; 200-paper bag machine; 210-a large hub component; 300-paper bag.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, rather than indicating or implying that the elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. 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 may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
Examples
The present embodiment provides a paper bag machine that can produce the paper bag 300 and close the bottom of the paper bag perfectly.
Referring to fig. 1, a paper bag machine 200 includes a machine body (not shown), a bottom closing device 100, and a large hub member 210.
The bottom closing device 100 and the large hub member 210 are both provided on the machine body, and the large hub member 210 has a cylindrical structure (only a part of which is shown in the figure).
As shown in fig. 1, and with additional reference to fig. 4, 6 and 10. The bottom closing device 100 comprises a bottom closing shaft 110, two groups of transmission mechanisms 130 are arranged on the bottom closing shaft 110, and the two groups of transmission mechanisms 130 are connected with a pulling piece 180. The two pulling pieces 180 are arranged symmetrically; the axis of the bottom shaft 110 is parallel to the axis of the large hub member 210, and the dial 180 is adjacent to the large hub member 210 such that the paper bag 300 can be accommodated between the dial 180 and the large hub member 210.
As shown in fig. 2 and 7, the bottom closing shaft 110 has a hollow structure, the bottom closing shaft 110 has a first end 111 and a second end 113 opposite to each other, the first end 111 and the second end 113 are respectively sleeved with a shaft sleeve 121, and the two shaft sleeves 121 are symmetrically arranged; an adjusting hand wheel 117 is sleeved outside the shaft sleeve 121 of the first end 111; the adjusting handwheel 117 is fixedly connected with the bottom closing shaft 110 so that the two can rotate synchronously. The outer side of the shaft sleeve 121 of the second end 113 is connected with a transmission gear 119; the second end 113 has a taper sleeve structure, that is, a tapered inner cavity 115 is formed inside the second end 113, and a plurality of slits 116 (refer to fig. 9) are formed in the second end 113 along the axial direction thereof, so that the second end 113 can expand and contract. When the second end 113 expands, the bottom closing shaft 110 can be in driving connection with the driving gear 119, so that the driving gear 119 can drive the bottom closing shaft 110 to rotate, and when the second end 113 contracts (i.e. returns to an initial state), the bottom closing shaft 110 is out of driving connection with the driving gear 119 (i.e. separated), and at the moment, the driving gear 119 cannot rotate to drive the bottom closing shaft 110 to rotate.
An adjusting screw rod 170 is arranged in the hollow bottom closing shaft 110, one end of the adjusting screw rod 170 extends out from the first end 111 of the bottom closing shaft 110, a locking nut 171 is connected to the adjusting screw rod 170, the locking nut 171 is in threaded connection with the adjusting screw rod 170, and a cushion block 173 is arranged between the end part of the locking nut 171 and the bottom closing shaft 110 in a cushioning manner; a frustum 175 is arranged at the other end of the adjusting screw 170, the frustum 175 is a conical structure, and the inclination of the inclined plane of the frustum 175 is matched with the second end 113 of the taper sleeve structure; when the lock nut 171 is screwed, the adjusting screw 170 can be driven to move inside the bottom closing shaft 110, so that the frustum 175 is close to or far away from the inner cavity 115 of the second end 113. When the frustum 175 approaches the inner cavity 115, the frustum 175 presses the second end 113, and the second end 113 can expand due to the arrangement of the gap 116 and enables the bottom closing shaft 110 to be in transmission connection with the transmission gear 119; when the frustum 175 is moved away from the cavity 115, the second end 113 of the bottomed shaft 110 returns to its original state and the transmission gear 119 is disengaged from the bottomed shaft 110.
As shown in fig. 5, two sets of transmission mechanisms 130 are provided between the two bushings 121, and the transmission mechanisms 130 include a gear case 123, a first straight bevel gear 131, and a second straight bevel gear 133. The gear case 123 is sleeved outside the bottom closing shaft 110, and the gear case 123 is connected with the shaft sleeve 121. The sleeve 121 is kept from rotating while the coupling shaft 110 rotates, and the gear case 123 is not rotated with the coupling shaft 110. The first straight bevel gear 131 and the second straight bevel gear 133 are disposed inside the gear case 123. The first straight bevel gear 131 is sleeved outside the closed bottom shaft 110 and rotates along with the closed bottom shaft 110, and the second straight bevel gear 133 is in meshed connection with the first straight bevel gear 131 and the axes of the first straight bevel gear and the second straight bevel gear are in oblique intersection; the side part of the gear box 123 is provided with a hole, and a fixed seat 145 is arranged in the hole; the second straight bevel gear 133 is connected with a plectrum shaft 135 coaxial therewith, and the plectrum shaft 135 passes through the fixing base 145 and is rotatably connected with the fixing base 145. The bevel gears are also called bevel gears, and each set of transmission mechanism 130 in this embodiment includes a pair of bevel gear pairs consisting of a first straight bevel gear 131 and a second straight bevel gear 133. The axes of the first straight bevel gear 131 and the second straight bevel gear 133 are inclined in such a manner that the pulling piece 180 can move perpendicular to the axis of the bottom closing shaft 110.
The end part of the plectrum shaft 135 extends out of the fixed seat 145, a blind hole 137 structure is arranged at the end part of the plectrum shaft 135, and the opening part of the blind hole 137 is in a conical structure; a spring 139 is arranged in the blind hole 137, and the outer diameter of the spring 139 is matched with the outer diameter of the blind hole 137 so that the spring 139 is tightly matched with the blind hole 137; the end of the spring 139 extends to the opening of the blind hole 137 so that the end of the spring 139 can rock at the opening of the blind hole 137.
The outer side of the end part of the plectrum shaft 135 is connected with a swinging block fixing block 143, and the swinging block fixing block 143 is fixedly connected with the plectrum shaft 135 so that the swinging block fixing block and the plectrum shaft can synchronously rotate; the swing block 141 is pin-connected to the swing block fixing block 143, so that the swing block 141 can rotate relative to the swing block fixing block 143, and the rotation axis of the swing block 141 relative to the swing block fixing block 143 is perpendicular to the axis of the plectrum shaft 135; the top of the pendulum block 141 is connected with a spring top piece 155, the spring top piece 155 is of a flat plate-shaped structure, one end of the spring top piece 155 extends to the upper side of the plectrum shaft 135, one side of the spring top piece 155, which is close to the plectrum shaft 135, is connected with a convex column 157, and the convex column 157 is of a stretching structure, and can be a cylinder or a square column. The posts 157 are perpendicular to the spring top 155 and the posts 157 extend into the interior of the spring 139.
As shown in fig. 8, the pulling piece 180 is in an integral structure, the pulling piece 180 includes a connection section 181 and a working section 183, the connection section 181 is basically in a rectangular structure, and the working section 183 is basically in a triangular structure. The hole 185 is arranged at the working section 183, the hole 185 is basically triangular, the setting of the hole 185 makes the plectrum 180 lighter, and the attaching area of the plectrum 180 and the paper bag 300 is smaller when the plectrum 180 works, and the plectrum and the paper bag 300 can be separated more quickly. This arrangement allows the paddle 180 to have an outwardly projecting end structure that, in operation, cuts into the bottom of the paper bag 300 more quickly, closing the bottom of the paper bag 300.
The pulling piece 180 is also connected to the swinging block 141, the pulling piece 180 is positioned above the spring top piece 155, and the pulling piece 180 and the spring top piece 155 are connected to the swinging block 141 through two bolts. A needle bearing 153 is arranged at the end part of the pendulum block 141, and the needle bearing 153 is connected to the pendulum block 141 through a bolt; the axial direction of the needle roller bearing 153 is parallel to the plane of the shifting sheet 180; and the axial direction of the needle bearing 153 is substantially parallel to the axial direction of the joint base 110.
A cam plate 150 is connected to the outside of the fixed base 145, and the cam plate 150 is located between the pendulum block 143 and the gear case 123. The cam plate 150 has a working surface 151 on a surface thereof adjacent to the dial 180, and the working surface 151 has a rugged and smooth transition structure. The bottom surface of the needle bearing 153 is attached to the working surface 151 of the cam disk 150, so that the dial plate 180 is driven to rotate to work when the dial plate shaft 135 rotates, and the needle bearing 153 can roll along the working surface 151 to drive the dial plate 180 to fluctuate along the contour of the working surface 151 when the dial plate 180 rotates to enable the dial plate 180 to be always separated from the large hub component 210 when the dial plate 180 works.
The two sets of transmission mechanisms 130 are symmetrically arranged, and the two sets of transmission mechanisms 130 are driven by the bottom closing shaft 110, so that the movement track of the two pulling sheets 180 is symmetrical in working.
The gear case 123 serves as a case structure, which may be of various shapes. The needle bearing 153 can also be realized in a cylindrical structure as an adjusting element, the needle bearing 153 having a lower operating resistance than the cylindrical structure.
In operation, as shown in fig. 1 and 3, the lock nut 171 is adjusted to bring the frustum 175 into close engagement with the second end 113 of the cone sleeve structure to drivingly connect the bottom closure shaft 110 to the drive gear 119. At this time, the rotation of the transmission gear 119 can drive the rotation of the bottom closing shaft 110.
The rotation of the bottom closing shaft 110 drives the two groups of transmission mechanisms 130 to work, when the transmission mechanisms 130 work, the plectrum shaft 135 is driven to rotate, the swinging block fixing block 143 can drive the swinging block 141 to rotate, the swinging block 141 can drive the plectrum 180 to rotate, and the rotation process of the plectrum 180 basically is around the axis vertical to the plectrum 180. And because the swinging block 141 and the swinging block fixing block 143 are in pin connection, the swinging block 141 can rotate relative to the swinging block fixing block 143; the needle bearing 153 rolls on the working surface 151 of the cam plate 150 when the pendulum mass 141 rotates, so that the pendulum mass 141 has a movement locus that fluctuates along the contour of the working surface 151 of the cam plate 150 in the horizontal direction, and further so that the dial 180 also has a movement locus that fluctuates in the horizontal direction. This arrangement allows the tab 180 to close the bottom of the paper bag 300 and the tab 180 does not contact the large hub member 210 during operation.
The primary function of cam plate 150 is that the adjustment member on the side of paddle 180 is operated by the cam surface such that when the adjustment member is moved to the highest point of the cam surface, the paddle is spaced away from the circumferential surface of large hub member 210, whereas paddle 180 is positioned adjacent to the circumferential surface of large hub member 210. When the pulling piece 210 is close to the circumferential surface, the pulling piece is a working point for closing the bottom of the paper bag, and the bottom forming of the paper bag 300 is facilitated.
Since the boss 157 of the spring top piece 155 is inserted into the spring 139, the spring 139 has an elastic force for keeping the spring in a straight line state, when the needle bearing 153 rolls on the cam disk 150, the boss 157 can be driven to swing, a certain included angle is formed between the boss 157 and the axis of the spring 139, and the top of the spring 139 is bent; at this time, the restoring force of the spring 139 makes the spring 139 have a reverse force to the boss 157, and the reverse force is transmitted to the spring top 155 and the pendulum block 141, so that the needle bearing 153 and the cam disk 150 always maintain contact and cannot be separated.
After the end of the operation, the lock nut 171 is reversely adjusted to move the adjusting screw 170 toward the other side, so that the end of the expanded bottom closing shaft 110 is restored to the original state, the transmission gear 119 is disconnected from the bottom closing shaft 110, and the rotation of the transmission gear 119 does not drive the bottom closing shaft 110 to rotate.
The adjusting hand wheel 117 is disposed on the bottom closing shaft 110, and rotating the adjusting hand wheel 117 can drive the bottom closing shaft 110 to rotate. When the bottom closing device 100 stops working, the adjusting hand wheel 117 is rotated to rotate the bottom closing shaft 110, so that the initial position of the pulling piece 180 is adjusted, and the bottom of the paper bag 300 can be folded more accurately when the bottom closing device 100 works. By adjusting the bottom closing device 100, the bottom closing quality is improved, and the pulling piece 180 is not contacted with the circumferential surface of the large hub part 210 in the working process, so that collision can not occur even in a high-speed state.
The bottom closing device 100 can meet the requirement of improving the transmission speed under the transmission of two pairs of straight bevel gears, and the bottom closing device 100 provides powerful guarantee for improving the speed of the whole equipment (paper bag machine 200). The problem that the traditional bottom closing device impacts the circumferential surface of the large hub part 210 under high-speed operation is effectively solved, and the poking plate 180 of the bottom closing device 100 is not contacted with the circumferential surface of the large hub part 210, so that the durability and the service life of the poking plate 180 are greatly protected, the situation that the poking plate 180 is broken due to abrasion can not occur under a high-speed state, the safety of equipment to debugging and operators is prevented from being threatened, and the overall performance index of the equipment is further improved. The bottom closing shaft 110 of the bottom closing device 100 is driven by the transmission gear 119 with a cylindrical straight gear structure, so that the jump caused by flexible transmission of the traditional chain type bottom closing device is reduced, the cylindrical straight gear transmission is more stable and efficient, the space is saved, the modularization of the bottom closing part of the paper bag machine 200 is realized, and the beneficial reference and reference are provided for future expansion machine types and research and development.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The bottom closing device of the paper bag machine is characterized by comprising a transmission mechanism and a poking plate, wherein the poking plate is connected to the transmission mechanism, and the transmission mechanism can drive the poking plate to rotate around an axis vertical to the poking plate;
the gear box is arranged outside the transmission mechanism, a cam disc is fixedly arranged outside the gear box, and the cam disc is provided with an uneven working surface; the side part of the poking piece is connected with an adjusting piece, and the adjusting piece is attached to the working surface; when the plectrum rotates to work, the adjusting piece can move along the working surface so as to drive the plectrum to fluctuate along the contour of the working surface;
the transmission mechanism comprises a shifting piece shaft and a pair of bevel gear pairs, and the shifting piece shaft penetrates through the cam disc; the side part of the plectrum shaft is connected with a swinging block fixing block;
a blind hole is formed in the top of the plectrum shaft, and a spring is inserted into the blind hole; the top of the blind hole forms a conical opening, and the spring extends to the top of the blind hole; the swing block fixing block is connected with a spring top piece, one side of the spring top piece is provided with a convex column perpendicular to the spring top piece, and the convex column is inserted into the spring;
the end part of the poking piece is arranged above the spring top piece and is attached to the spring top piece; the adjusting piece is a bearing, and the axis of the adjusting piece is parallel to the plane where the plectrum is located; the plectrum is integrated into a whole structure, and the plectrum includes linkage segment and operating segment, the linkage segment is rectangular structure, the operating segment is triangle-shaped structure.
2. The paper bag machine bottom closing device according to claim 1, wherein the transmission mechanisms are two groups, the two groups of transmission mechanisms are connected to the bottom closing shaft, each group of transmission mechanisms is connected with one poking piece, and the two poking pieces are arranged symmetrically; the transmission mechanism can drive the two poking sheets to rotate in a symmetrical mode.
3. The paper bag machine bottom closing device according to claim 2, wherein the transmission mechanism is driven by the bottom closing shaft, and a transmission gear is arranged at the end part of the bottom closing shaft; the poking piece is parallel to the axis of the bottom closing shaft.
4. The paper bag machine bottom closing device according to claim 1, wherein the swing block is connected with a swing block in a pin joint manner, and the poking piece and the adjusting piece are both connected with the swing block; the rotation axis of the swinging block around the swinging block fixing block is perpendicular to the axis of the shifting piece shaft.
5. The paper bag machine bottom closing device according to claim 3, wherein the bottom closing shaft is of a hollow structure and comprises a first end and a second end; the inside of the bottom closing shaft is connected with an adjusting screw rod, and one end of the adjusting screw rod extends out of the bottom closing shaft from the first end and is connected with a locking nut; the transmission gear is connected to the second end, the second end is of a taper sleeve structure, an inner cavity is formed in the inner side of the second end, and an opening of a part of the inner cavity, which is close to the outer side, is larger than an opening of a part, which is close to the inner side; the part of the adjusting screw close to the second end is connected with a frustum, and the inclined plane of the frustum is matched with the inclined plane of the inner cavity; and adjusting the lock nut can enable the adjusting screw rod to move inside the bottom closing shaft so as to enable the second end of the bottom closing shaft to be in transmission connection with or separated from the transmission gear.
6. The paper bag machine bottom closing device of claim 5, wherein an adjusting hand wheel is arranged on the outer side of the first end.
7. The paper bag machine is characterized by comprising a machine body, a bottom closing device and a large hub component, wherein the bottom closing device and the large hub component are arranged on the machine body; the bottom closing device comprises a bottom closing shaft, two groups of transmission mechanisms are arranged on the bottom closing shaft at intervals, the two groups of transmission mechanisms are connected with poking sheets, and the two poking sheets are symmetrically arranged; the axis of the bottom closing shaft is parallel to the axis of the large hub component, and the poking plate is close to the large hub component so that a paper bag can be accommodated between the poking plate and the large hub component;
the gear box is arranged outside the transmission mechanism, a cam disc is fixedly arranged outside the gear box, and the cam disc is provided with an uneven working surface; the side part of the poking piece is connected with an adjusting piece, and the adjusting piece is attached to the working surface; the transmission mechanism can drive the plectrum to rotate and work, and the adjusting piece can move along the working surface during the rotation and work of the plectrum so as to drive the plectrum to fluctuate along the contour of the working surface, so that the plectrum is always separated from the large hub component during the work;
when the plectrum rotates to work, the adjusting piece can move along the working surface so as to drive the plectrum to fluctuate along the contour of the working surface;
the transmission mechanism comprises a shifting piece shaft and a pair of bevel gear pairs, and the shifting piece shaft penetrates through the cam disc; the side part of the plectrum shaft is connected with a swinging block fixing block;
a blind hole is formed in the top of the plectrum shaft, and a spring is inserted into the blind hole; the top of the blind hole forms a conical opening, and the spring extends to the top of the blind hole; the swing block fixing block is connected with a spring top piece, one side of the spring top piece is provided with a convex column perpendicular to the spring top piece, and the convex column is inserted into the spring;
the end part of the poking piece is arranged above the spring top piece and is attached to the spring top piece; the adjusting piece is a bearing, and the axis of the adjusting piece is parallel to the plane where the plectrum is located; the plectrum is integrated into a whole structure, and the plectrum includes linkage segment and operating segment, the linkage segment is rectangular structure, the operating segment is triangle-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN107225801A (en) | 2017-10-03 |
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