CN218947899U - Automatic punching equipment for paper tube bayonet - Google Patents

Abstract

The utility model discloses automatic punching equipment for a paper tube bayonet, which is used for carrying out counterpoint bayonet punching on two ends of a paper tube; comprising the following steps: a frame; the feeding assembly is used for conveying the paper tubes to the carrying table; the carrying table is used for carrying and displacing the paper tube and moving the paper tube to the position of the unilateral punching assembly to stop; the dragging belt of the carrying table is uniformly and alternately provided with a plurality of concave parts which are used for parallel placement and synchronous displacement of each paper tube; the pushing assembly is arranged on the side part of the carrying table and opposite to the single-side punching assembly, so as to be used for pushing the paper tube to the position of the single-side punching assembly for cutting; the single-side punching assemblies are respectively arranged at two sides of the carrying table and are arranged in a staggered manner; the punching machine head of each unilateral punching assembly drives the cutter to punch along the radial direction of the paper tube through the eccentric cam structure; the utility model provides a paper tube bayonet socket automatic punching equipment, simple structure, easy realization are with low costs, solve unable current paper tube bayonet socket punching equipment and be difficult to realize automatic punching and unable not die-cut not unidimensional paper tube's problem.

Description

Automatic punching equipment for paper tube bayonet

Technical Field

The utility model relates to the field of automatic equipment manufacturing, in particular to automatic punching equipment for a paper tube bayonet.

Background

Nowadays, the application range of paper tubes is wider and wider, including carbon strips for printers, toilet paper and the like, but some products are not only wound outside the paper tubes, but also processed inside the paper tubes, for example, bayonets are formed on the paper tubes, so that application equipment and the paper tubes can be in limit fit, and materials on the paper tubes can be normally used, for example, the carbon strips for printers are required to be formed on the paper tubes, so that the internal fasteners of the printers are embedded to form clamping fit, and the carbon strips are driven to integrally rotate;

the existing paper tube is provided with the bayonet or the opening in the following two modes, namely, the paper tube is subjected to impact cutting through a guillotine, the operation is simple, the cost is low, the efficiency is low, the safety of manual operation is poor, all cutting can be completed after the paper tube is clamped for many times, the problems of misalignment of relative opening positions and different opening distances of the bayonet are easy to occur during clamping for many times, and the quality and the precision of products cannot be ensured; another problem of feeding safety is solved, but the feeding safety is poor in practicality, and the feeding safety is not applicable to paper tubes with different lengths, so that high equipment can only be used for single-size products; in addition, the cutting machine head has high power consumption (the product is placed at a fixed position, and stamping is realized by moving the stamping machine head), the efficiency is low, the paper tube taking and placing time is long, and the continuous mass production is not suitable;

to sum up, the existing die cutting equipment needs to be further improved so as to meet the requirement of automatic production.

Disclosure of Invention

The utility model aims to overcome the defects or problems in the background art and provide the automatic paper tube bayonet punching equipment which is simple in structure, simple and convenient to manufacture, easy to realize and low in cost, and solves the problems that the automatic punching and the punching of paper tubes with different sizes cannot be realized by the traditional paper tube bayonet punching equipment;

in order to achieve the above purpose, the present utility model adopts the following technical scheme:

an automatic punching device for paper tube bayonets is used for carrying out counterpoint bayonet punching on two ends of a paper tube; the method is characterized in that: the apparatus includes: the device comprises a frame, a feeding assembly, a carrying table, a push assembly and a single-side punching assembly, wherein the feeding assembly, the carrying table, the push assembly and the single-side punching assembly are arranged on the frame;

a feeding assembly for conveying the paper tube to a carrying table;

the carrying table is used for carrying and displacing the paper tube and moving the paper tube to the position of the unilateral punching assembly to stop; the dragging belt of the carrying table is uniformly and alternately provided with a plurality of concave parts which are used for parallel placement and synchronous displacement of each paper tube;

the pushing assembly is arranged on the side part of the carrying table and opposite to the single-side punching assembly, and is used for pushing the paper tube to the position of the single-side punching assembly for cutting;

the single-side punching assemblies are respectively arranged at two sides of the carrying table and are arranged in a staggered manner; the punching machine head of each unilateral punching component drives the cutter to punch along the radial direction of the paper tube through the eccentric cam structure.

Further, the feeding assembly comprises a feeding channel, a buffering hopper and a separation roller, wherein the feeding channel is communicated with the buffering hopper and is used for guiding paper tubes into the buffering hopper in sequence; the buffer hopper is provided with a containing cavity and a discharge hole, and the separation roller part is positioned at the discharge hole; the separation roller is used for correspondingly guiding the paper tube in the slow hopper into the concave part; the peripheral wall of the separation roller is provided with equally-divided receiving grooves, and the distance between two adjacent receiving grooves is the same as the distance between two adjacent concave parts on the towing belt; the separation roller and the dragging belt are driven to operate through the first driving mechanism, and the movement directions of the separation roller and the dragging belt are opposite.

Further, the pushing assembly comprises an air cylinder, a support frame and a moving piece, wherein the support frame is arranged on the side part of the carrying table, and the air cylinder is arranged and penetrates through the carrying table; the piston rod of the air cylinder is coaxially assembled with the moving part and drives the moving part to axially displace along the paper tube; the moving piece acts on the end part of the paper tube and pushes the paper tube placed in the concave part towards the direction of the unilateral punching assembly.

Further, one end of the paper tube acting on the moving part is provided with a guide part for guiding deflection generated in carrying the paper tube.

Further, the two unilateral punching assemblies are oppositely arranged in a staggered manner; the single-side punching assembly comprises a base plate, a first motor, a transmission piece, a positioning frame and a plurality of cutters, wherein one surface of the base plate faces the ejection assembly and is provided with the positioning frame; the locating frame is sleeved with the paper feeding pipe, a cutting groove for the cutter to pass through is formed in the locating frame, and the cutting groove is matched with the movable cutter to form a shearing force so as to punch the end part of the paper tube to form a bayonet; the two cutters are driven by an eccentric cam structure and are limited to linearly displace relatively by a limit groove formed in the substrate; the first motor is arranged on the other side of the base plate and drives the two eccentric cam structures to synchronously act through the transmission piece.

Further, the eccentric cam structure comprises a gear disc, a connecting shaft, a cam, a swinging block and a sliding piece; the gear disc and the cam are respectively arranged on two sides of the base plate and are in rotation-stopping fit through the connecting shaft to form synchronous rotation, and the swinging block is sleeved on the periphery of the cam and hinged with the sliding piece; the sliding piece is used for clamping the cutter; the gear plates are arranged on the same side as the first motor, the two gear plates are wound with the first motor through the transmission piece to form transmission fit, and the cam coaxially arranged with the gear plates is linked to rotate to drive the swinging block to swing left and right so as to drive the cutter on the swinging block to move linearly relatively.

Further, the expansion bridge sleeve is used for connecting the connecting shaft with the cam and the gear disc; the expansion bridging sleeve is tightly pressed on the connecting shaft, the cam, the connecting shaft and the gear disc through bolts.

Further, the device also comprises a discharging unit which is arranged corresponding to the positioning frame and is used for pushing or blowing and punching waste materials.

Further, the paper tube punching machine also comprises a displacement assembly, which is used for driving the punching assembly to axially displace along the paper tube; the displacement assembly comprises a screw, a plurality of guide rods and a fixing frame, wherein the fixing frame is connected to the frame and is respectively connected with one end of the screw; the base plate is used for the guide rod to penetrate through and is matched with the screw thread; the screw is rotated to drive the base plate to move along the axis of the paper tube relative to the fixing frame, so that the application range of the paper tube is enlarged.

From the above description of the present utility model, compared with the prior art, the present utility model has the following advantages:

1. the automatic punching equipment for the paper tube bayonet realizes an automatic cutting function through the feeding component, the carrying table, the ejection component and the unilateral punching component, has high safety and greatly improves the production efficiency; the reason is that: (1) According to the utility model, the paper tubes are tiled at intervals and equidistantly through the feeding assembly and the carrying table, so that the subsequent processing and punching (more convenient cutting) are realized, the problems of high power, low manufacturing precision, low efficiency and the like caused by the displacement of the existing punching machine head are firstly broken through the production mode of three-dimensional displacement and immobility of the paper tubes, compared with the problems that the paper tubes are clamped by a mechanical arm or carried to a fixed area by a carrying mechanism (the paper tubes are not loosened) in the existing punching equipment, and then the paper tubes are punched by the displacement of the punching mechanism to the corresponding position, the defect that other equipment cannot work in the cutting process of the paper tubes and can only wait for the next action is overcome through changing the movement mode, and the efficiency is improved; (2) According to the utility model, the paper tube is pushed to be displaced to the position of the single-side punching assembly through the pushing assembly, the paper tube is not fixed in a pressing or clamping mode from the outside, the paper tube is guaranteed to have high appearance, the paper tube is pushed from the inside to the corresponding area for cutting, the paper tube is uniform in size, cutting is not interfered, the cut waste is fallen into the paper tube, the waste is difficult to collect as in the traditional mode, and the precision is not influenced over time; (3) Compared with the prior art that an air cylinder or a hydraulic rod is used as a driving piece, the eccentric cam mechanism is used as a cutting power piece, the utility model has the advantages that the loading force is large, the movement times are high, the problems are easy to occur when the prior air cylinder or the hydraulic cylinder is used as driving, more precisely, the problem is easy to occur when the air cylinder or the hydraulic cylinder continuously works for 10 ten thousand times, namely, 50-60 ten thousand times a day of actions are easy to occur; the eccentric cam knot has long service life and large cutting force, and can continuously work at high frequency by matching with the paper tubes which are equally divided in parallel; (4) More importantly, the paper tube is pushed and displaced by the pushing assembly, so long as the paper tube length can be punched within the interval between the two unilateral punching assemblies, for example, the existing paper tube with the length of 40-120 mm can be punched, adjustment is not needed, and the paper tube with different lengths can be punched on the basis that the direction of the paper tube is not changed by bare hands or a mechanical arm, so that the paper tube punching machine is wide in application direction and high in safety;

2. according to the feeding assembly, the buffer hopper is adopted to adjust the operation efficiency of the feeding part and the punching part, paper tubes can be temporarily stored in the buffer hopper, no matter faults occur or other emergency conditions occur, the paper tubes cannot be always conveyed to the next working procedure, the paper tubes can be ensured to fall into the concave parts regularly and correspondingly in a manner of the separation roller, and more skillfully, the paper tubes in the buffer hopper can be pushed by the separation roller, so that the phenomenon of paper tube jamming is effectively prevented; moreover, the separation roller and the dragging belt are driven by the same driving mechanism, so that the operation speeds of the separation roller and the dragging belt are consistent, a paper tube cannot continuously fall down when the dragging belt is processed and cut when stopped, synchronous operation is kept, the cost and the installation space of a plurality of driving mechanisms are saved, and the structural conception is very ingenious;

3. the unilateral punching component adopts the first motor and the transmission part as power sources, so that the defect that the existing air cylinder is used as the power source (the service life is short) is overcome, and the cutter can synchronously punch relatively up and down; in addition, through the design of the locating rack, the locating rack is not only used for sleeving and limiting paper tubes, but also provides a supporting and shearing knife edge for subsequent punching, thereby realizing the multifunction of the object; in addition, an eccentric cam structure is adopted, the circumferential motion is changed into linear motion, the acting force is large, the space occupation is small, and the cutter is driven to linearly displace by the eccentric cam structure, so that punching is easily realized;

4. the utility model adopts the principle of eccentric cams and crank connecting rods to realize punching transmission, and combines a first motor with a transmission piece wound on two gear plates to easily realize synchronous transmission, so that two cutters synchronously and relatively displace without a synchronous controller for operation, and more importantly, the punching (cutting) force is large, the response is rapid, the service life is long, and the utility model is suitable for continuous and long-time work;

5. according to the utility model, the adjusting function is realized by expanding the bridging sleeve, namely, the relative punching positions of the two cutters are adjusted, namely, the positions of the cutters are adjusted, and as a certain gap exists in the processing or production of the transmission part, the cam and other parts, when the first motor is connected with the two gear plates through the transmission part, one cutter is in the punching position, and the other cutter is in the position which does not reach the punching position, namely, the punching is asynchronous, so that the subsequent process is influenced, the gear plates and the connecting shafts can be firstly loosened through expanding the bridging sleeve to be matched with each other in a rotation stopping way, and then the two cutters are tightly forced again after the positions are adjusted, so that the two cutters are easily adjusted to be punched or reset simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the description of the embodiments below are briefly introduced, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of an automatic punching apparatus according to the present utility model.

Fig. 2 is a schematic perspective view of an automatic punching apparatus according to the present utility model.

Fig. 3 is a schematic perspective view of a feeding assembly according to the present utility model.

Fig. 4 is a schematic perspective view of a carrying platform according to the present utility model.

Fig. 5 is a schematic diagram showing a combination state of the ejector assembly and the single-sided punching assembly according to the present utility model.

Fig. 6 is a schematic diagram II of a combined state of the ejector assembly and the single-sided punching assembly according to the present utility model.

Fig. 7 is a schematic perspective view of a positioning frame according to the present utility model.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It is to be understood that the described embodiments are preferred embodiments of the utility model and should not be taken as excluding other embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without creative efforts, are within the protection scope of the present utility model.

In the claims, specification and drawings hereof, unless explicitly defined otherwise, the terms "first," "second," or "third," etc., are used for distinguishing between different objects and not for describing a particular sequential order.

In the claims, specification and drawings hereof, unless explicitly defined otherwise, references to orientation terms such as "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counter-clockwise", etc., are based on the orientation and positional relationship shown in the drawings and are for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have or be constructed and operated in a particular orientation, nor should it be construed as limiting the particular scope of protection of the utility model.

In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, the term "fixedly connected" or "fixedly connected" should be construed broadly, i.e. any connection between them without a displacement relationship or a relative rotation relationship, that is to say includes non-detachably fixedly connected, integrally connected and fixedly connected by other means or elements.

In the claims, specification and drawings of the present utility model, the terms "comprising," having, "and variations thereof as used herein, are intended to be" including but not limited to.

Referring to fig. 1-2, the automatic punching equipment for the paper tube bayonet is used for punching the alignment bayonet A1 at two ends of the paper tube a; the outer wall of the paper tube A punched with the bayonet A1 is wound with a product, and the product is in butt joint with using equipment through the bayonet A1 in the subsequent use;

the automatic punching apparatus includes: the device comprises a frame 1, a feeding assembly 2, a carrying table 3, a pushing assembly 4 and a single-side punching assembly 5 which are arranged on the frame 1;

a feeding assembly 2 (see fig. 1-3) for conveying the paper tube a to the carrying table 3;

the feeding assembly 2 comprises a feeding channel 21, a buffer hopper 22 and a separation roller 23;

the feeding channel 21 is communicated with the buffer hopper 22 and is used for sequentially guiding the paper tubes A into the buffer hopper 22; it should be noted that, the feeding channel 21 is implemented by matching the conveyor belt 211 with the third motor 212, which is the prior art and will not be described in detail;

the buffer hopper 22 is provided with a containing cavity 221 and a discharge hole 222, and the separation roller 23 is partially positioned at the discharge hole 222; the section of the accommodating cavity 221 is funnel-shaped, and the paper tube A slides to the discharge hole 222 along the funnel-shaped cavity wall after entering the accommodating cavity 221 and falls on the separation roller 23 along with gravity;

the separation roller 23 is used for guiding the paper tubes A in the buffer hopper 22 into the concave parts 310 in a one-to-one correspondence; the peripheral wall of the separation roller 23 is provided with equally-divided receiving grooves 231, and the distance between two adjacent receiving grooves 231 is the same as the distance between two adjacent concave parts 310 on the towing belt 31, so as to ensure that the paper tube A can correspondingly fall into the concave parts 310 after the separation roller 23 rotates; wherein, the separation roller 23 and the dragging belt are driven by the first driving mechanism 6 to be transported, and the movement directions of the separation roller 23 and the dragging belt are opposite.

A carrying platform 3 (see fig. 1-4) for carrying and displacing the paper tube a and moving to a position where the single-side punching assembly 5 is stopped, wherein the stopping is that the carrying platform 3 stops moving when the paper tube a needs to be punched, and continues to displace to the blanking position after the punching is finished; a plurality of concave parts 310 are uniformly and alternately distributed on the dragging belt 31 of the carrying table 3, and each paper tube A is placed in parallel and synchronously displaced; the towing belt 31 is an annular towing belt 31, and the upper concave part 310 moves circularly; the carrying table 3 drives the dragging belt 31 to run by taking the first driving mechanism 6 as power, the first driving mechanism 6 comprises a second motor (not shown in the figure), a driving gear 62 and a driven gear 63, the second motor (not shown in the figure) drives the driving gear 62 to rotate, and further drives the dragging belt 31 meshed with the driving gear 62 and the driven gear 63 to circularly run, it is noted that the power for rotating the separation roller 23 of the feeding assembly 2 is also transmitted to the second motor (not shown in the figure), and the second motor (not shown in the figure) drives the separation roller 23 and the driving gear 62 to mesh by a transmission chain, so that synchronous movement is realized;

the pushing component 4 is arranged on the side part of the carrying table 3 and opposite to the single-side punching component 5, and is used for pushing the paper tube A to the single-side punching component 5 for cutting;

the pushing assembly 4 comprises an air cylinder 41, a supporting frame 42 and a moving piece 43;

the supporting frame 42 is arranged at the side part of the carrying table 3, and the air supply cylinder 41 is arranged and penetrates through;

the piston rod of the cylinder 41 is coaxially assembled with the moving member 43 and drives the moving member 43 to axially displace along the paper tube A;

the moving member 43 acts on the end of the paper tube a to push the paper tube a placed in the recess 310 toward the single-side die-cut assembly 5.

A plurality of single-side punching assemblies 5 (see fig. 5 and 6) respectively arranged at two sides of the carrying table 3 and arranged in a staggered manner; the punching machine head of each unilateral punching assembly 5 drives a cutter to punch along the radial direction of the paper tube A through an eccentric cam structure 7;

the two unilateral punching assemblies 5 are oppositely arranged in a staggered manner;

the single-sided punching assembly 5 comprises a base plate 51, a first motor 52, a transmission member 53, a positioning frame 54, and a plurality of cutters 55;

the surface of the base plate 51 faces the pushing assembly 4 and is provided with a positioning frame 54;

the positioning frame 54 is sleeved with the paper tube A, and is provided with a cutting groove 541 for the cutter 55 to pass through, and the cutting groove 541 and the movable cutter 55 are matched to form a shearing force so as to punch the end part of the paper tube A to form a bayonet A1; it should be noted that, in the present utility model, the positioning frame 54 includes a sleeve connection portion 542, a slot 541, and a through hole 543, where the through hole 543 is axially formed along the paper tube a, and the sleeve connection portion 542 is used for sleeving the paper tube a and carrying the paper tube a;

the two cutters 55 are driven by the eccentric cam structure 7 and limit the relative linear displacement of the two cutters 55 by a limit groove 511 formed on the base plate 51; the first motor 52 is arranged on the other surface of the base plate 51, and drives the two eccentric cam structures 7 to synchronously act through the transmission piece 53;

the eccentric cam structure 7 includes a gear plate 71, a connecting shaft 72, a cam 73, a pendulum block 74, and a slider 75;

the gear disc 71 and the cam 73 are separately arranged on two sides of the base plate 51 and are in rotation-stopping fit through the connecting shaft 72 to form synchronous rotation;

the swing block 74 is sleeved on the periphery of the cam 73 and hinged with the sliding piece 75; the sliding piece 75 is used for clamping the cutter 55;

wherein, the gear plate 71 is installed on the same side as the first motor 52, and the two gear plates 71 are wound around the first motor 52 through the transmission member 53 to form transmission fit, and the cam 73 coaxially installed with the gear plate 71 is linked to rotate to drive the swinging block 74 to swing left and right so as to drive the cutter 55 on the swinging block 74 to move linearly relatively, and die-cut the paper tube a on the positioning frame 54.

The device also comprises a discharging unit 8 which is arranged corresponding to the positioning frame 54 and is used for pushing or blowing the punched waste;

the discharging unit 8 of the utility model is in the following form:

the first driving rod 82 via the air cylinder 81 drives the paper tube a to pass through the through holes 543 synchronously when the push rod pushes the paper tube a back to the concave portion 310 after punching, so as to push the waste into the paper tube a for temporary storage;

in the second mode, when the other end bayonet A1 is completed and the paper tube a is pushed to the concave portion 310 again, all the waste is blown out of the paper tube a by the blowing mode and enters the waste tank B.

More specifically, one end of the moving member 43, on which the paper tube a acts, is provided with a guide portion 431 for guiding the deflection of the paper tube a during carrying; it should be noted that, during carrying, a slight vibration will be generated, and because the outer wall of the paper tube a is an arc surface, deflection will be generated more or less, and after the punching of the bayonet A1 at one end of the paper tube a is completed, the bayonet A1 at the other end also needs to correspond to the end, so before the other bayonet A1 is processed, the processed bayonet A1 is close to the theoretical symmetry after the paper tube a is guided by the guiding portion 431.

More specifically, an expansion bridge Q is also included for connecting the shaft 72 with the cam 73, the gear disc 71; the expansion bridge sleeve Q is fastened to the connecting shaft 72 and the cam 73, and the connecting shaft 72 and the gear disc 71 by bolts.

More specifically, the paper tube A comprises a displacement assembly 9 for driving the single-side punching assembly 5 to axially displace along the paper tube A;

the displacement assembly 9 comprises a screw 91, a plurality of guide rods 92 and a fixing frame 93;

the fixing frame 93 is attached to the frame 1, and is respectively connected to one end of the screw 91 and the guide rod 92;

the base plate 51 is penetrated by a guide rod 92 and is in threaded fit with a screw 91; 1, the screw 91 is rotated to drive the substrate 51 to move along the axis of the paper tube a relative to the fixing frame 93, so as to expand the application range of the paper tube a.

When in actual use, the method comprises the following steps: (see FIGS. 1-7)

(1) The paper tubes A sequentially move into the buffer hopper 22 through the feeding channel 21, and slide down to the separation roller 23 positioned at the discharge hole 222 along the inclined inner wall of the buffer hopper 22, namely fall into the receiving groove 231 of the separation roller 23; the receiving grooves 231 are arranged at equal intervals (equally divided) so that the paper tube a removed from the receiving groove 231 can smoothly enter the concave portion 310 on the dragging belt 31 of the carrying table 3; here, the rotation of the separation roller 23 and the movement of the dragging belt 31 are implemented by a second motor (not shown), and the rotation distance of two adjacent receiving grooves 231 corresponds to the movement distance of two concave parts 310, so as to ensure that the paper tube a falling from the separation roller 23 stably enters the concave parts 310;

(2) The dragging belt 31 is moved to the position of the single-side punching assembly 5 to stop through the carrying table 3; after stopping, the paper tube A is pushed into the positioning frame 54 by the pushing assembly 4, and it is to be noted that the air cylinder 41 of the pushing assembly 4 drives the moving member 43 to act on the paper tube A, so that the paper tube A in the pushing concave part 310 smoothly enters the positioning frame 54;

(3) After being pushed into the positioning frame 54 and abutted against the base plate 51, the paper tube A starts to work through the first motor 52, and drives the two gear plates 71 to rotate through meshing with the transmission piece 53 matched with the two gear plates 71; the cam 73 coaxially arranged with the gear disc 71 through the connecting shaft 72 also rotates along with the gear disc, and drives the swinging blocks 74 to swing left and right so as to drive the cutters 55 on the two swinging blocks 74 to relatively move linearly and punch the paper tube A on the positioning frame 54; after punching, the first motor 52 rotates and resets the cutter 55;

(4) The punched waste is pushed into the paper tube A by the 8 pieces of the discharging unit in the positioning frame 54, and meanwhile, the paper tube A is pushed back into the concave part 310;

(5) Continuing to drive the carrying table 3 to move until the second single-side punching assembly 5 stops; the paper tube A is pushed into the other locating rack 54 by the pushing component 4; in contrast, the moving member 43 has a guiding portion 431 thereon, which cooperates with the punched bayonet A1 to prevent the deviation during the displacement process, so that the bayonets A1 on both sides of the paper tube a are not in the same plane; then repeating the punching process to realize the punching of the bayonet A1 on the other side of the paper tube A;

(6) After punching, the waste materials are pushed into the concave part 310, except that a blowing component is additionally arranged at the same time of pushing out, so that the waste materials in the paper tube A are blown out of the paper tube A and fall into a waste material tank B;

(7) The punched paper tube A is carried to a blanking position through a carrying table 3 for blanking.

The automatic punching equipment for the paper tube bayonet realizes an automatic cutting function through the feeding component, the carrying table, the ejection component and the unilateral punching component, has high safety and greatly improves the production efficiency; the reason is that: (1) According to the utility model, the paper tubes are tiled at intervals and equidistantly through the feeding assembly and the carrying table, so that the subsequent processing and punching (more convenient cutting) are realized, the problems of high power, low manufacturing precision, low efficiency and the like caused by the displacement of the existing punching machine head are firstly broken through the production mode of three-dimensional displacement and immobility of the paper tubes, compared with the problems that the paper tubes are clamped by a mechanical arm or carried to a fixed area by a carrying mechanism (the paper tubes are not loosened) in the existing punching equipment, and then the paper tubes are punched by the displacement of the punching mechanism to the corresponding position, the defect that other equipment cannot work in the cutting process of the paper tubes and can only wait for the next action is overcome through changing the movement mode, and the efficiency is improved; (2) According to the utility model, the paper tube is pushed to be displaced to the position of the single-side punching assembly through the pushing assembly, the paper tube is not fixed in a pressing or clamping mode from the outside, the paper tube is guaranteed to have high appearance, the paper tube is pushed from the inside to the corresponding area for cutting, the paper tube is uniform in size, cutting is not interfered, the cut waste is fallen into the paper tube, the waste is difficult to collect as in the traditional mode, and the precision is not influenced over time; (3) Compared with the prior art that an air cylinder or a hydraulic rod is used as a driving piece, the eccentric cam mechanism is used as a cutting power piece, the utility model has the advantages that the loading force is large, the movement times are high, the problems are easy to occur when the prior air cylinder or the hydraulic cylinder is used as driving, more precisely, the problem is easy to occur when the air cylinder or the hydraulic cylinder continuously works for 10 ten thousand times, namely, 50-60 ten thousand times a day of actions are easy to occur; the eccentric cam knot has long service life and large cutting force, and can continuously work at high frequency by matching with the paper tubes which are equally divided in parallel; (4) More importantly, the paper tube is pushed and displaced by the pushing assembly, so long as the paper tube length can be punched within the interval between the two unilateral punching assemblies, for example, the existing paper tube with the length of 40-120 mm can be punched, adjustment is not needed, and the paper tube with different lengths can be punched on the basis that the direction of the paper tube is not changed by bare hands or a mechanical arm, so that the paper tube punching machine is wide in application direction and high in safety; according to the feeding assembly, the buffer hopper is adopted to adjust the operation efficiency of the feeding part and the punching part, paper tubes can be temporarily stored in the buffer hopper, no matter faults occur or other emergency conditions occur, the paper tubes cannot be always conveyed to the next working procedure, the paper tubes can be ensured to fall into the concave parts regularly and correspondingly in a manner of the separation roller, and more skillfully, the paper tubes in the buffer hopper can be pushed by the separation roller, so that the phenomenon of paper tube jamming is effectively prevented; moreover, the separation roller and the dragging belt are driven by the same driving mechanism, so that the operation speeds of the separation roller and the dragging belt are consistent, a paper tube cannot continuously fall down when the dragging belt is processed and cut when stopped, synchronous operation is kept, the cost and the installation space of a plurality of driving mechanisms are saved, and the structural conception is very ingenious; the unilateral punching component adopts the first motor and the transmission part as power sources, so that the defect that the existing air cylinder is used as the power source (the service life is short) is overcome, and the cutter can synchronously punch relatively up and down; in addition, through the design of the locating rack, the locating rack is not only used for sleeving and limiting paper tubes, but also provides a supporting and shearing knife edge for subsequent punching, so that one object is multifunctional; in addition, an eccentric cam structure is adopted, the circumferential motion is changed into linear motion, the acting force is large, the space occupation is small, and the cutter is driven to linearly displace by the eccentric cam structure, so that punching is easily realized; the utility model adopts the principle of eccentric cams and crank connecting rods to realize punching transmission, and combines a first motor with a transmission piece wound on two gear plates to easily realize synchronous transmission, so that two cutters synchronously and relatively displace without a synchronous controller for operation, and more importantly, the punching (cutting) force is large, the response is rapid, the service life is long, and the utility model is suitable for continuous and long-time work; according to the utility model, the adjusting function is realized by expanding the bridging sleeve, namely, the relative punching positions of the two cutters are adjusted, namely, the positions of the cutters are adjusted, and as a certain gap exists in the processing or production of the transmission part, the cam and other parts, when the first motor is connected with the two gear plates through the transmission part, one cutter is in the punching position, and the other cutter is in the position which does not reach the punching position, namely, the punching is asynchronous, so that the subsequent process is influenced, the gear plates and the connecting shafts can be firstly loosened through expanding the bridging sleeve to be matched with each other in a rotation stopping way, and then the two cutters are tightly forced again after the positions are adjusted, so that the two cutters are easily adjusted to be punched or reset simultaneously.

The foregoing description of the embodiments and description is presented to illustrate the scope of the utility model, but is not to be construed as limiting the scope of the utility model.

Claims (9)

1. An automatic punching device for paper tube bayonets is used for carrying out counterpoint bayonet punching on two ends of a paper tube; the method is characterized in that: the apparatus includes: the device comprises a frame, a feeding assembly, a carrying table, a push assembly and a single-side punching assembly, wherein the feeding assembly, the carrying table, the push assembly and the single-side punching assembly are arranged on the frame;

a feeding assembly for conveying the paper tube to a carrying table;

the carrying table is used for carrying and displacing the paper tube and moving the paper tube to the position of the unilateral punching assembly to stop; the dragging belt of the carrying table is uniformly and alternately provided with a plurality of concave parts which are used for parallel placement and synchronous displacement of each paper tube;

the pushing assembly is arranged on the side part of the carrying table and opposite to the single-side punching assembly, and is used for pushing the paper tube to the position of the single-side punching assembly for cutting;

the single-side punching assemblies are respectively arranged at two sides of the carrying table and are arranged in a staggered manner; the punching machine head of each unilateral punching component drives the cutter to punch along the radial direction of the paper tube through the eccentric cam structure.

2. An automatic die cutting device for paper tube bayonet as defined in claim 1, wherein: the feeding assembly comprises a feeding channel, a buffering hopper and a separation roller, wherein the feeding channel is communicated with the buffering hopper and is used for guiding paper tubes into the buffering hopper in sequence; the buffer hopper is provided with a containing cavity and a discharge hole, and the separation roller part is positioned at the discharge hole; the separation rollers are used for guiding the paper tubes in the slow hopper into the concave parts in a one-to-one correspondence manner; the peripheral wall of the separation roller is provided with equally-divided receiving grooves, and the distance between two adjacent receiving grooves is the same as the distance between two adjacent concave parts on the towing belt; the separation roller and the dragging belt are driven to operate through the first driving mechanism, and the movement directions of the separation roller and the dragging belt are opposite.

3. An automatic die cutting device for paper tube bayonet as defined in claim 1, wherein: the pushing assembly comprises an air cylinder, a support frame and a moving piece, wherein the support frame is arranged on the side part of the carrying table, and the air cylinder is arranged and penetrates through the carrying table; the piston rod of the air cylinder is coaxially assembled with the moving part and drives the moving part to axially displace along the paper tube; the moving piece acts on the end part of the paper tube and pushes the paper tube placed in the concave part towards the direction of the unilateral punching assembly.

4. A paper tube bayonet automatic punching apparatus as defined in claim 3, wherein: one end of the movable piece, which is used for acting on the paper tube, is provided with a guide part which is used for guiding deflection generated in the carrying process of the paper tube.

5. An automatic die cutting device for paper tube bayonet as defined in claim 1, wherein: the two unilateral punching assemblies are oppositely arranged in a staggered manner; the single-side punching assembly comprises a base plate, a first motor, a transmission piece, a positioning frame and a plurality of cutters, wherein one surface of the base plate faces the ejection assembly and is provided with the positioning frame; the locating frame is sleeved with the paper feeding pipe, a cutting groove for the cutter to pass through is formed in the locating frame, and the cutting groove is matched with the movable cutter to form a shearing force so as to punch the end part of the paper tube to form a bayonet; the two cutters are driven by an eccentric cam structure and are limited to linearly displace relatively by a limit groove formed in the substrate; the first motor is arranged on the other side of the base plate and drives the two eccentric cam structures to synchronously act through the transmission piece.

6. An automatic die cutting apparatus for paper tube bayonet as defined in claim 5, wherein: the eccentric cam structure comprises a gear disc, a connecting shaft, a cam, a swinging block and a sliding piece; the gear disc and the cam are respectively arranged on two sides of the base plate and are in rotation-stopping fit through the connecting shaft to form synchronous rotation, and the swinging block is sleeved on the periphery of the cam and hinged with the sliding piece; the sliding piece is used for clamping the cutter; the gear plates are arranged on the same side as the first motor, the two gear plates are wound with the first motor through the transmission piece to form transmission fit, and the cam coaxially arranged with the gear plates is linked to rotate to drive the swinging block to swing left and right so as to drive the cutter on the swinging block to move linearly relatively.

7. An automatic die cutting apparatus for paper tube bayonet as defined in claim 6, wherein: the expansion bridge sleeve is used for connecting the connecting shaft with the cam and the gear disc; the expansion bridging sleeve is tightly pressed on the connecting shaft, the cam, the connecting shaft and the gear disc through bolts.

8. An automatic die cutting apparatus for paper tube bayonet as defined in claim 7, wherein: the device also comprises a discharging unit which is arranged corresponding to the locating rack and is used for pushing or blowing the punched waste.

9. An automatic die cutting apparatus for paper tube bayonet as defined in claim 5, wherein: the paper tube punching device further comprises a displacement assembly, wherein the displacement assembly is used for driving the punching assembly to axially displace along the paper tube; the displacement assembly comprises a screw, a plurality of guide rods and a fixing frame, wherein the fixing frame is connected to the frame and is respectively connected with one end of the screw; the base plate is used for the guide rod to penetrate through and is matched with the screw thread; the screw is rotated to drive the base plate to move along the axis of the paper tube relative to the fixing frame, so that the application range of the paper tube is enlarged.

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