CN112477272A

CN112477272A - Automatic change paper jar processing equipment

Info

Publication number: CN112477272A
Application number: CN201910868099.XA
Authority: CN
Inventors: 陈恩典; 陈明辉; 邹光明
Original assignee: Fujian Tianhui Industrial Co ltd
Current assignee: Fujian Tianhui Industrial Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2021-03-12

Abstract

The invention discloses automatic paper can processing equipment which comprises a machine table and a main shaft assembly arranged in the middle of the machine table, wherein the machine table is sequentially provided with a paper tube feeding mechanism, a can bottom mounting mechanism, a heat sealing mechanism, a knurling mechanism, a curling processing mechanism and a paper can discharging mechanism along the rotation direction of the main shaft assembly. The automatic paper can processing equipment can carry out heat seal processing on a paper tube and a can bottom to manufacture a paper can. The equipment is provided with a plurality of processing positions on an annular processing line, and each processing position is processed in one procedure, so that the assembly line type automatic production can be realized. The paper can has high processing efficiency and high automation, and can be widely applied to the production and the manufacture of disposable paper cans. This equipment still carries out the knurling operation through the part of knurling mechanism to the fiber container of fiber container and tank bottoms laminating, both can increase the firm degree of combination of fiber container and tank bottoms, makes the fiber container be difficult for leaking, and the decorative pattern of extrusion still has better decorative effect moreover to the outward appearance of fiber container has been promoted.

Description

Automatic change paper jar processing equipment

Technical Field

The invention relates to automation equipment, in particular to automatic paper can processing equipment.

Background

Paper cans (paper jar) are also called paper tubes and paper tins, and the national label: GB \ T10440-2008 is a circular packaging product integrating metal, paper and plastic into a whole, and is generally divided into a spiral type and a rewinding type.

The paper can takes paper as a main raw material, so the recovery and the treatment are easy; the protective performance is excellent, and the waterproof and moistureproof effects are achieved; no odor, no toxicity, safety and reliability, and is especially suitable for food packaging; the noise is low when the filling is carried out; the outer layer can be subjected to color printing, and has good display effect; the weight is light, only 30% of that of the iron can, the circulation is easy, the use is convenient, and the price is lower. The composite paper can has wide application field, is commonly used for containing powdery solid food such as cocoa powder, tea, granulated sugar, salt, oatmeal, coffee and various solid beverages, is a new generation of environment-friendly packaging product, and can replace packaging materials such as glass, ceramic and the like. The composite paper can is a novel packaging product, is green and environment-friendly, has low manufacturing cost, is a good choice for food packaging, integrates paper, film and iron, is an optimal container for fresh-keeping food packaging, and has the advantages of excellent sealing performance, safety, sanitation, low cost, novelty, fashion and the like.

The paper can is generally formed by laminating a paper tube and a can bottom. The existing equipment for processing the paper tank has the defects that in the production process, because the paperboard belongs to a volatile material, in the cutting and pasting processes, the phenomenon that wrinkles exist in the cutting position or the cutting position is rough and the like is easily caused, and the forming effect of the tank body is influenced. And the existing equipment is generally large in size and low in automation degree.

Disclosure of Invention

The invention aims to provide automatic paper can processing equipment.

According to one aspect of the invention, an automatic paper can processing device is provided, which comprises a machine table and a spindle assembly arranged in the middle of the machine table, wherein the spindle assembly carries a paper tube for manufacturing the paper can to turn from one side of the machine table to the other side, the paper tube is processed into the paper can in the process, and the machine table is sequentially provided with:

the paper tube feeding mechanism is used for conveying the cut paper tube and inserting the cut paper tube on a paper die arranged on the main shaft assembly, the paper die is vertically arranged downwards, and the outer diameter of the paper die is matched with the inner diameter of the paper tube;

the tank bottom mounting mechanism is used for cutting the tank bottom and mounting the tank bottom on the lower part of the paper tube;

the heat seal mechanism is used for heating the bottom of the paper tube so as to connect the bottom of the paper tube with the bottom of the paper tube in a hot melt sealing manner;

the knurling mechanism is used for knurling the top end of the lower part of the paper tank;

the curling mechanism is used for forming a folded-in curled edge on the lower edge of the paper can;

and the paper tank discharging mechanism is used for receiving the processed paper tank and conveying the processed paper tank to the outside for collection and storage.

By adopting the automatic paper can processing equipment adopting the technical scheme, the paper tube and the can bottom can be subjected to heat sealing processing to manufacture the paper can. The equipment adopts the design of an annular processing line, a plurality of processing positions are arranged on the annular processing line, and each processing position is respectively provided with a processing device for processing in one procedure, so that the production line type automatic production can be realized. The paper can processing equipment has high processing efficiency and high automation degree, and can be widely applied to the production and the manufacture of disposable paper cans. This equipment still carries out the knurling operation through the part of knurling mechanism to the fiber container of fiber container and tank bottoms laminating, both can increase the firm degree of combination of fiber container and tank bottoms, makes the fiber container be difficult for leaking, and the decorative pattern of extrusion still has better decorative effect moreover to the outward appearance and the commodity performance of fiber container have been promoted.

Specifically, the spindle assembly mainly comprises a spindle and a turntable arranged at the top end of the spindle, the spindle is driven by a main motor, a paper mold is installed on the lower portion of the turntable in a vertically downward mode, the paper mold is inserted into a paper tube and is in interference fit with the paper tube and fixes the paper tube on the peripheral wall, the spindle is located in the center of the turntable, and the turntable drives the paper mold and the paper tube or a paper can fixed on the paper mold to rotate together.

Specifically, the paper tube feeding mechanism comprises a paper tube conveying device and a clamping device arranged at one end of the inner side of the paper tube conveying device, and the clamping device clamps the paper tube from the top end of the paper tube conveying device and then upwards sleeves the paper tube on the paper mold. Therefore, the paper tube can realize automatic and continuous feeding.

Furthermore, the clamping device comprises a rotating shaft and a paper groove disc arranged at the top end of the rotating shaft, the rotating shaft is fixedly connected with the center of the paper groove disc, a base disc parallel to the paper groove disc is arranged below the paper groove disc, the rotating shaft penetrates through the base disc and is rotatably connected with the base disc through a bearing, a plurality of paper grooves are uniformly arranged on the edge part of the paper groove disc, the paper grooves are matched with part of the outer wall of the paper tube, an arc-shaped stop strip is arranged on the upper surface of one side of the base disc, the inner side of the stop strip is matched with the paper grooves to clamp the paper tube to move from the head end to the tail end along with the paper groove disc along the inner side of the stop strip, the head end of the stop strip is close;

the clamping device is further connected with a feeding lifting device, when the paper slot disc drives the paper tube to move to the tail end of the stop strip, the feeding lifting device drives the clamping device to integrally lift upwards, the paper tube is further sleeved on the paper mold, and then the feeding lifting device drives the clamping device to integrally descend to retain the paper tube on the paper mold. When the paper groove disc clamps the paper tube and the stop strips to rotate relatively, the chassis and the stop strips can shape the paper tube, so that the upper opening of the paper tube can be opposite to the paper mold, and the paper tube is conveniently sleeved on the paper mold.

Specifically, the tank bottom mounting mechanism comprises a servo paper feeding device and a tank bottom punching device;

the servo paper feeding device comprises a feeding roller driven by a servo motor, a movable pressing wheel is further arranged on one side of the feeding roller, the movable pressing wheel is parallel to the feeding roller and is connected with an air cylinder through a connecting rod mechanism, the air cylinder drives the movable pressing wheel to move towards the feeding roller through the connecting rod mechanism, and then a paper board for punching the bottom of the tank is tightly pressed on the surface of the feeding roller and is fixed;

the tank bottom punching device is composed of a paper tube clamping die and a tank bottom punching knife arranged at the bottom of the paper tube clamping die and connected with a lifting structure, the paper tube clamping die is used for fixing the lower part of the paper tube, a paper plate is fed from the upper part of the tank bottom punching knife, and the paper plate is punched into a tank bottom and is fixed with the bottom of the paper tube when the tank bottom punching knife rises.

Can process into the cardboard of rolling up through the die-cut device in tank bottoms with the fiber container bottom matched with tank bottoms, die-cut device cooperation fiber mold bottom can be installed the tank bottoms in the fiber container bottom, is convenient for carry out processing on next step. The excess of cardboard punched through the bottom of the can be collected by special collecting means.

Furthermore, the movable pressing wheel is installed on an eccentric shaft through a bearing, the connecting rod mechanism is connected with the eccentric shaft, the connecting rod mechanism is jacked up when the air cylinder acts, the deviation part of the eccentric shaft faces the feeding roller, and the paper board is tightly pressed on the surface of the feeding roller and fixed through the movable pressing wheel. Therefore, when the tank bottom punching device punches, the movable pressing wheel and the feeding roller can clamp and fix the paper board to prevent the paper board from shifting.

Furthermore, the heat sealing mechanism comprises a primary heat sealing mechanism and a secondary heat sealing mechanism which are sequentially arranged, the primary heat sealing mechanism and the secondary heat sealing mechanism are respectively composed of a hot air device, the hot air device is installed on a lifting mechanism and comprises a tubular heater and a hot air cover fixed at one end of an outlet of the tubular heater, the shape of the hot air cover is matched with that of the bottom of the paper tube, an inlet of the tubular heater is connected with an air source through a pipeline, air is heated into high-temperature air flow when passing through the tubular heater and then blown to the bottom of the paper tube through the hot air cover, and the bottom surface of the bottom of the paper tube is heated, melted and is attached to the inner. The high-temperature air flow is used as a heating medium, so that the heat sealing mechanism is greatly simplified, and the temperature of the heat sealing mechanism during heat sealing and processing is more convenient to control. Meanwhile, the heat seal processing is divided into two times, the paper can leaves the one-time heat seal mechanism after the first heat seal processing, and the temperature can be slightly reduced, so that the deformation of the bottom of the paper can caused by the internal stress formed during the material heat processing can be effectively eliminated.

Specifically, the knurling mechanism is arranged on a lifting mechanism and comprises a knurling outer die and a knurling wheel arranged inside the knurling outer die, the knurling wheel is rotatably connected with the knurling outer die through a bearing and is driven to rotate inside the knurling outer die through a knurling motor, the inner wall of the knurling outer die is matched with the outer wall of the knurling wheel, and patterns are rolled at the top end of the lower portion of the paper tank. When knurling mechanism carried out the knurling operation to the fiber container, the fiber container bottom still was in the state of softening, had both can increased the firm degree of combination of fiber container and tank bottoms this moment, made the fiber container be difficult for leaking, but also can extrude very beautiful decorative pattern.

Furthermore, the tank bottom punching device, the primary heat sealing mechanism, the secondary heat sealing mechanism and the knurling outer die of the knurling mechanism are arranged on the same lifting platform. Therefore, the lifting requirement of four processing devices can be met by one lifting platform, the mechanism is simple, and the synchronism is good.

Specifically, the knurling wheel is connected with the elevating platform through a cam device.

Furthermore, the feeding lifting device is also a cam device, the lifting platform is driven by the cam device to move up and down, the three cam devices are parallel and horizontally arranged, and the three cam devices are connected with each other and are in transmission connection with the main motor. Therefore, the three cam devices are not required to be provided with other motors for driving, and the structure is very reasonable.

Specifically, the cam device comprises a rotatable wheel shaft and a chain wheel or a belt wheel fixed on the wheel shaft, the rotating shaft is connected with the main motor or the wheel shafts of the other cam devices through a chain or a belt, at least one cam is fixed on the wheel shaft, and when the wheel shaft rotates, the cam rotates together with the wheel shaft, so that other components which are in contact with the outer wall of the cam are driven to move up and down. The cam device can conveniently convert the rotation output by the main motor into the translational motion of ascending and descending, and an operating system for additionally arranging an air cylinder and controlling the air cylinder is not needed. Other components which are in contact with the outer wall of the cam in a jacking mode can be adjusted in lifting time nodes and lifting strokes through the deviation angle and the eccentric distance of the cam, and a complex PLC control system is not needed.

Further, the main shaft is connected with the main motor through an indexing box, and the rotating shaft is parallel to the main shaft and is connected with the main shaft through a chain or a belt. Therefore, the rotating shaft and the main shaft do not need to be provided with other motors for driving, most of rotation output and translation output of the equipment can be completed only by one main motor, and the structure is very reasonable.

Preferably, the paper can discharging mechanism and the paper tube conveying device are both conveyer devices. The conveyor means may be a conventional conveyor belt.

Specifically, the hemming mechanism comprises a knurling shaft and a hemming die arranged at the top of the knurling shaft, the hemming die is fixedly connected with the knurling shaft through a fixing bolt, the knurling shaft is rotatably connected with a lifting platform through a bearing and is driven by a knurling motor to rotate on the lifting platform, an annular hemming groove is arranged at the bottom of the hemming die, a pin is arranged on the hemming die and penetrates through the side wall of the hemming die from the outer side, the head of the pin extends into the hemming groove, the pin is also provided with a groove, the groove is positioned at the bottom of the hemming groove and has the same direction as the hemming groove, the bottom of the groove is an arc-shaped surface, the hemming die is also provided with a locking bolt, the locking bolt is inserted into the hemming die from the outer side, and the top of the locking bolt is in contact with the side wall of the,

drawings

Fig. 1 is a schematic structural diagram of an automated paper can processing apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic layout of a processing device of the automated carton processing machine shown in fig. 1.

Fig. 3 is an assembly view of a processing device of the automated carton processing machine shown in fig. 1.

Fig. 4 is a schematic structural view of the spindle assembly shown in fig. 3.

Fig. 5 is a schematic structural view of the paper tube feeding mechanism shown in fig. 3.

Fig. 6 is a schematic structural diagram of the servo paper feeding device shown in fig. 3.

Fig. 7 is an assembly view of the servo paper feeding apparatus shown in fig. 6.

Fig. 8 is a schematic view of the can bottom blanking apparatus of fig. 3.

FIG. 9 is a schematic structural view of the primary heat-sealing mechanism shown in FIG. 2.

Fig. 10 is a schematic structural view of the knurling mechanism shown in fig. 3.

Fig. 11 is a schematic structural view of the cam device shown in fig. 3.

Fig. 12 is a schematic structural view of the curling mechanism shown in fig. 3.

Fig. 13 is a schematic view of the pin of fig. 12.

Fig. 14 is a schematic view of the internal structure of the curling mechanism shown in fig. 12.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 to 14 schematically show an automated paper can processing apparatus according to an embodiment of the present invention.

As shown in the figure, the device comprises a machine table 1 and a spindle assembly 2 arranged in the middle of the machine table 1.

The spindle assembly 2 carries a paper tube for manufacturing paper cans, which is turned from one side of the machine table 1 to the other side, and the paper tube is processed into the paper cans in the process.

Wherein, board 1 is equipped with in proper order along main shaft assembly 2's direction of rotation:

the paper tube feeding mechanism 3 is used for conveying the cut paper tube and inserting the cut paper tube on a paper die 21 arranged on the main shaft assembly 2, the paper die 21 is vertically arranged downwards, and the outer diameter of the paper die is matched with the inner diameter of the paper tube;

the tank bottom mounting mechanism 4 is used for cutting the tank bottom and mounting the tank bottom on the lower part of the paper tube;

the heat seal mechanism 5 is used for heating the bottom of the paper tube and further connecting the bottom of the paper tube with the bottom of the tank in a hot melting and sealing manner;

the knurling mechanism 6 is used for knurling the top end of the lower part of the paper tank;

and the paper tank discharging mechanism 7 is used for receiving the processed paper tank and conveying the processed paper tank to the outside for collection and storage.

The spindle assembly 2 mainly includes a spindle 22 and a turntable 23 disposed at a top end of the spindle 22.

The spindle 22 is driven by a main motor 8.

The paper mold 21 is installed in a vertically downward manner at a lower portion of the turntable 23.

The paper mold 21 is inserted into the paper tube and is in interference fit with the paper tube to fix the paper tube on the outer peripheral wall.

The main shaft 22 is located at the center of the turntable 23, and the turntable 23 drives the paper mold 21 and the paper tube or paper can fixed on the paper mold 21 to rotate together.

The paper tube feeding mechanism 3 includes a paper tube conveying device 31 and a holding device 32 disposed at one end of the inner side of the paper tube conveying device 31.

In the present embodiment, the paper can discharging mechanism 7 and the paper tube conveying device 31 are both belt conveyor devices. The conveyor means may be a conventional conveyor belt.

The holding device 32 holds the paper tube from the top of the paper tube conveying device 31 and then covers the paper tube on the paper mold 21. Therefore, the paper tube can realize automatic and continuous feeding.

The holding device 32 includes a shaft 321 and a paper slot tray 322 disposed at the top end of the shaft 321.

The rotating shaft 321 is fixedly connected with the center of the paper slot disc 322.

A chassis 323 parallel to the paper slot plate 322 is provided below the paper slot plate 322.

The rotating shaft 321 penetrates through the chassis 323 and is rotatably connected with the chassis 323 through a bearing.

The paper slot tray 322 is uniformly provided with a plurality of paper slots 322a at the edge portion thereof.

The paper slot 322a matches part of the outer wall of the paper tube.

An arc-shaped stop strip 323a is arranged on the upper surface of one side of the bottom plate 323.

The inner side of the stop bar 323a cooperates with the paper slot 322a to clamp the paper tube, and the paper tube moves along the inner side of the stop bar 323a along with the paper slot disc 322 from the head end to the tail end of the stop bar 323 a.

The head end of the stop bar 323a is close to one end of the inner side of the paper tube conveying device 31, and the tail end of the stop bar 323a is opposite to the lower end of the paper mold 21.

The holding device 32 is also connected to a cam device 9.

When the paper slot plate 322 drives the paper tube to move to the tail end of the stop bar 323a, the cam device 9 drives the clamping device 32 to integrally lift up, so that the paper tube is sleeved on the paper mold 21, and then the clamping device 32 integrally descends to leave the paper tube on the paper mold 21.

When the paper slot plate 322 clamps the paper tube and the stop strip 323a to rotate relatively, the chassis 323 and the stop strip 323a can shape the paper tube, so that the upper opening of the paper tube can be opposite to the paper mold 21, and the paper tube can be conveniently sleeved on the paper mold 21.

The can bottom mounting means 4 comprises a servo paper feeding device 41 and a can bottom blanking device 42.

The servo paper feeding device 41 includes a feeding roller 412 driven by a servo motor 411.

One side of the feeding roller 412 is also provided with a movable pressing wheel 413.

The movable pressure roller 413 is parallel to the feed roller 412 and is connected to a cylinder 415 through a link mechanism 414.

The cylinder 415 drives the movable pressing wheel 413 to move towards the feeding roller 412 through the link mechanism 414, so that the paper board for punching the bottom of the can is pressed on the surface of the feeding roller 412 and fixed.

The can bottom punching device 42 is composed of a paper tube clamping die 421 and a can bottom punching knife 422 arranged at the bottom of the paper tube clamping die 421.

The tank bottom punching device 42 is connected with the lifting platform 11.

The paper tube clamping die 421 is used for fixing the lower part of the paper tube, the paper plate is fed from the upper part of the tank bottom stamping knife 422, and the paper plate is punched into a tank bottom and is fixed with the bottom of the paper tube when the tank bottom stamping knife 422 rises.

Can process into the cardboard of rolling up into with the fiber container bottom matched with tank bottoms through die-cut device 42 in tank bottoms, die-cut device 42 cooperation fiber mold 21 bottom can be installed the tank bottoms in the fiber container bottom, is convenient for carry out processing on next step. The excess of cardboard punched through the bottom of the can be collected by special collecting means. The collection device with such function is very common in practical production, and the specific structure thereof is not described herein.

In this embodiment, the movable pressing wheel 413 is mounted on an eccentric shaft 413a through a bearing.

The link mechanism 414 is connected to an eccentric shaft 413a, and when the cylinder 415 operates, the link mechanism 414 is lifted up to direct the offset portion of the eccentric shaft 413a toward the feeding roller 412, and the movable pressing roller 413 presses and fixes the paper sheet to the surface of the feeding roller 412. Therefore, the movable pressing wheel 413 and the feeding roller 412 can clamp and fix the paper sheets when the bottom punching device 42 punches the paper bottom, and the paper sheets are prevented from being displaced.

The heat-sealing mechanism 5 includes a primary heat-sealing mechanism 51 and a secondary heat-sealing mechanism 52 arranged in this order.

The primary heat-sealing mechanism 51 and the secondary heat-sealing mechanism 52 are each constituted by a hot air device.

The hot air device is arranged on the lifting platform 11 and comprises a tubular heater 5a and a hot air cover 5b fixed at one end of the outlet of the tubular heater 5 a.

The hot air cover 5b is matched with the shape of the bottom of the paper tube.

The inlet of the tubular heater 5a is connected to an air source through a pipe.

The air is heated into high-temperature airflow when passing through the tubular heater 5a, and then blown to the bottom of the paper tube through the hot air cover 5b, and the bottom surface of the bottom of the paper tube is heated, melted and attached to the inner wall of the paper tube into a whole.

The high-temperature air flow is used as a heating medium, so that the heat sealing mechanism is greatly simplified, and the temperature of the heat sealing mechanism during heat sealing and processing is more convenient to control. Meanwhile, the heat seal processing is divided into two times, the paper can leaves the one-time heat seal mechanism 51 after the first heat seal processing, and the temperature can be slightly reduced, so that the deformation of the bottom of the paper can caused by the internal stress formed during the material heat processing can be effectively eliminated.

The knurling mechanism 6 is also mounted on the elevating table 11 and includes a knurling outer mold 61 and a knurling wheel 62 provided inside the knurling outer mold 61.

The knurling wheel 62 is rotatably connected with the knurling outer die 61 through a bearing and is driven to rotate inside the knurling outer die 61 through a knurling motor 63.

The inner wall of the knurling outer die 61 is matched with the outer wall of the knurling wheel 62, and patterns are rolled at the top end of the lower portion of the paper can.

When knurling mechanism 6 carried out the knurling operation to the fiber container, the fiber container bottom still was in the state of softening, had both can increased the firm degree of combination of fiber container and tank bottoms this moment, made the fiber container be difficult for leaking, but also can extrude very beautiful decorative pattern.

Knurling mechanism 6 carries out the knurling operation to the paper jar and accomplishes the back, cliies the paper jar bottom and stimulates downwards a little, can make the paper jar break away from with paper mould 21, and then along with spindle unit 2 rotatory back, drops on the conveyer belt of paper jar discharge mechanism 7, takes out equipment by the conveyer belt at last and collects.

In the present embodiment, the can bottom punching device 42, the primary and secondary heat-sealing

mechanisms

51 and 52, and the knurling outer die 61 of the knurling mechanism 6 are mounted on the same lift table 11. Therefore, the lifting requirement of four processing devices can be met by one lifting platform 11, and the mechanism is simple and good in synchronism.

The knurling wheel 62 is connected to the lifting table 11 via a cam device 9.

In the embodiment, the lifting platform 11 is driven to move up and down through one cam device 9, three cam devices 9 are arranged in parallel and horizontally, and the three cam devices 9 are connected with each other and are in transmission connection with the main motor 8. Therefore, the three cam devices 9 do not need to be provided with other motors for driving, and the structure is very reasonable.

As shown, cam device 9 includes a rotatable hub 91 and a sprocket 92 fixed to hub 91.

The rotating shaft 91 is connected to the main motor 8 or the wheel shaft 91 of the remaining cam gear 9 by a chain.

At least one cam 93 is fixed to the axle 91.

When the axle 91 rotates, the cam 93 rotates together with the axle, and further drives other components which are contacted with the outer wall of the cam 93 to move up and down.

The cam device 9 can conveniently convert the rotation output by the main motor 8 into the translational motion of ascending and descending, and an operating system of an air cylinder and a control air cylinder is not required to be additionally arranged. Other members, which are in contact with the outer wall of the cam 93, can be adjusted in lifting time nodes and lifting strokes by the deviation angle and the eccentric distance of the cam 93 without using a complicated PLC control system.

The spindle 22 is connected to the main motor 8 via an indexing housing 24.

The rotation shaft 321 is parallel to the main shaft 22 and connected by a chain. Therefore, the rotating shaft 321 and the main shaft 22 do not need to be provided with other motors for driving, most of the rotating output and the translation output of the equipment can be completed only by one main motor 8, and the structure is very reasonable.

In the embodiment, a curling mechanism 10 is also arranged between the knurling mechanism 6 and the paper can discharging mechanism 7.

The curling mechanism 10 is mounted on a lifting table 11 for forming a tucked curl at the lower edge of the paper can.

The hemming mechanism 10 includes a knurling shaft 101 and a hemming die 102 provided on the top of the knurling shaft 101. The hemming die 102 and the knurling shaft 101 are fixedly connected through a fixing bolt 10.

The knurling shaft 101 is rotatably connected to the elevating table 11 via a bearing and is rotated on the elevating table 11 by the knurling motor 63.

The bottom of the hemming die 102 is provided with a ring-shaped hemming groove 102 a.

Crimping die 102 is provided with pins 104.

The pin 104 penetrates the sidewall of the hemming die 102 from the outside, and the head portion protrudes into the hemming groove 102 a.

The pin 104 also has a recess 104a in the side wall.

The groove 104a is located at the bottom of the crimping groove 102a and is oriented in line with the crimping groove 102 a.

The bottom of the groove 104a is an arc-shaped surface.

The hemming die 102 is also provided with a locking bolt 105.

The locking bolt 105 is inserted into the hemming die 102 from the outside, and the top thereof abuts against the side wall of the pin 104.

The sidewall of the hemming die 102 is provided with a plurality of vent holes 106 therethrough. The vent hole 106 is communicated with the hemming groove 102a and is used for balancing the air pressure between the hemming die 102 and the can bottom processing.

After the paper can processed by the knurling mechanism 6 is brought to a position right above the hemming die 102 by the paper die 21, the lift table 11 is lifted upward, and the hemming die 102 is rotated by the knurling shaft 101. The arcuate surface of the bottom of the recess 104a acts on the bottom of the can to eventually form a folded-in curl.

By loosening and tightening the locking bolt 105, the insertion depth of the pin 104 can be adjusted, and the relative position of the groove 104a in the crimping groove 102a can be adjusted, thereby accommodating paper cans of different diameters.

A corresponding crimping device may also be provided on the paper die 21 in order to crimp the mouth of the paper can. When the can bottom is processed, the can opening can be simultaneously curled.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. Automatic change fiber container processing equipment, its characterized in that, including a board and set up in the main shaft assembly at board middle part, main shaft assembly carry be used for making the fiber container by one side of board turns to the opposite side, the fiber container is processed into the fiber container at this in-process, the board is followed main shaft assembly's direction of rotation is equipped with in proper order:

the heat seal mechanism is used for heating the bottom of the paper tube so as to connect the bottom of the can with the bottom of the paper tube in a hot melt sealing manner;

2. The automated canister processing apparatus of claim 1, wherein the spindle assembly mainly includes a spindle and a turntable disposed at a top end of the spindle, the spindle is driven by a main motor, the mold is mounted at a lower portion of the turntable in a vertically downward manner, the mold is inserted into the canister and is in interference fit with the canister and fixes the canister to an outer peripheral wall, the spindle is located at a center of the turntable, and the turntable drives the mold and the canister or the canister fixed to the mold to rotate together.

3. The automated can processing apparatus of claim 2, wherein the feed mechanism comprises a feed device and a gripping device disposed at an inner end of the feed device, wherein the gripping device grips the paper tube from a top end of the feed device and then upwardly sleeves the paper tube on the paper mold.

4. The automated can processing apparatus of claim 3, wherein said holding device comprises a shaft and a paper slot tray disposed at a top end of said shaft, the rotating shaft is fixedly connected with the center of the paper slot disc, a chassis parallel to the paper slot disc is arranged below the paper slot disc, the rotating shaft penetrates through the chassis and is rotationally connected with the chassis through a bearing, a plurality of paper slots are uniformly arranged at the edge part of the paper slot plate, the paper groove is matched with part of the outer wall of the paper tube, the upper surface of one side of the chassis is provided with an arc-shaped stop strip, the inner side of the stop strip is matched with the paper slot to clamp the paper tube to move along the inner side of the stop strip along with the paper slot disc from the head end to the tail end of the stop strip, the head end of the stop strip is close to one end of the inner side of the paper tube conveying device, and the tail end of the stop strip is opposite to the lower end of the paper mold;

the paper tube clamping device is characterized in that the clamping device is further connected with a feeding lifting device, when the paper slot disc drives the paper tube to move to the tail end of the stop strip, the feeding lifting device drives the clamping device to be lifted upwards integrally so as to sleeve the paper tube on the paper mold, and then the feeding lifting device drives the clamping device to be lowered integrally so as to retain the paper tube on the paper mold.

5. The automated can converting apparatus of claim 4, wherein said can bottom mounting means comprises a servo paper feeder and a can bottom die cutting means;

the tank bottom punching device is composed of a paper tube clamping die and a tank bottom punching knife arranged at the bottom of the paper tube clamping die and connected with a lifting structure, the paper tube clamping die is used for fixing the lower part of the paper tube, the paper plate is fed from the upper part of the tank bottom punching knife, and the paper plate is punched and cut into a tank bottom and fixed with the bottom of the paper tube when the tank bottom punching knife ascends.

6. The automated can converting apparatus of claim 5 wherein said movable pressure roller is mounted by bearings on an eccentric shaft, said linkage is connected to said eccentric shaft, said cylinder is actuated to jack said linkage and direct a biased portion of said eccentric shaft toward said feed roller, and said movable pressure roller presses and holds said sheet against a surface of said feed roller.

7. The automatic paper can processing equipment according to claim 5 or 6, wherein the heat sealing mechanism comprises a primary heat sealing mechanism and a secondary heat sealing mechanism which are arranged in sequence, the primary heat sealing mechanism and the secondary heat sealing mechanism are respectively composed of a hot air device, the hot air device is installed on a lifting mechanism, the hot air device comprises a tubular heater and a hot air cover fixed at one end of an outlet of the tubular heater, the hot air cover is matched with the shape of the bottom of the paper can, an inlet of the tubular heater is connected with an air source through a pipeline, air is heated into high-temperature air flow when passing through the tubular heater and then blown to the bottom of the paper can through the hot air cover, and the bottom surface of the bottom of the paper can is heated and melted and is attached to the inner wall of the paper can into a whole.

8. The automated paper can processing equipment as claimed in claim 7, wherein the knurling mechanism is arranged on a lifting mechanism and comprises a knurling outer die and a knurling wheel arranged inside the knurling outer die, the knurling wheel is rotatably connected with the knurling outer die through a bearing and is driven by a knurling motor to rotate inside the knurling outer die, the inner wall of the knurling outer die is matched with the outer wall of the knurling wheel, and patterns are rolled on the top end of the lower portion of the paper can.

9. The automated paper can processing equipment according to claim 8, wherein the can bottom punching device, the primary heat-sealing mechanism, the secondary heat-sealing mechanism and the knurling outer die of the knurling mechanism are mounted on the same lifting platform, the knurling wheel is connected with the lifting platform through a cam device, the feeding lifting device is also a cam device, the lifting platform is driven to move up and down through a cam device, three cam devices are arranged in parallel and horizontally, and three cam devices are connected with each other and are in transmission connection with the main motor.

10. The automated carton processing equipment according to claim 9, wherein the cam device comprises a rotatable wheel shaft and a sprocket or a pulley fixed on the wheel shaft, the rotating shaft is connected with the main motor or the wheel shafts of the other cam devices through a chain or a belt, at least one cam is fixed on the wheel shaft, and when the wheel shaft rotates, the cam rotates together with the wheel shaft, so that other components contacted with the outer wall of the cam are driven to move up and down.