CN113910681A - Bag bottom forming device and bag making machine - Google Patents
Bag bottom forming device and bag making machine Download PDFInfo
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- CN113910681A CN113910681A CN202111186170.XA CN202111186170A CN113910681A CN 113910681 A CN113910681 A CN 113910681A CN 202111186170 A CN202111186170 A CN 202111186170A CN 113910681 A CN113910681 A CN 113910681A
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- clamp
- assembly
- air suction
- cam
- mandrel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/02—Feeding or positioning sheets, blanks or webs
- B31B70/022—Holders for feeding or positioning sheets or webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/74—Auxiliary operations
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Abstract
The invention provides a bag bottom forming device and a bag making machine, wherein the bag bottom forming device comprises a bottom opening device and a large hub wheel device; the large hub wheel device is opposite to the bottom opening device; the bottom opening device comprises a bottom opening shaft, a paper clip assembly and a first air suction mechanism; the paper clip component is used for fixing the raw materials; the first air suction mechanism comprises a suction nozzle, and the suction nozzle is used for adsorbing raw materials; the paper clip assembly and the suction nozzle are both arranged on the bottom opening shaft, and the paper clip assembly is positioned on two sides of the suction nozzle along the axial direction of the bottom opening shaft; the large hub wheel device comprises a main shaft, a clamp assembly and a second air suction mechanism; the second air suction mechanism is used for adsorbing raw materials; the clamp assembly and the second air suction mechanism are both arranged on the main shaft; the first air suction mechanism and the second air suction mechanism can be arranged oppositely. First air suction mechanism and second air suction mechanism can assist paper to press from both sides the upper strata and the lower floor that the fiber container was opened to subassembly and anchor clamps subassembly, and the action of the upper strata and the lower floor that open the fiber container through absorbent mode is comparatively gentle, can prevent that the fiber container from pressing from both sides brokenly, improves machining efficiency.
Description
Technical Field
The invention relates to the technical field of paper bag manufacturing, in particular to a bag bottom forming device and a bag making machine.
Background
The use of plastic bags is limited due to environmental requirements. Paper bags are widely used for outer packaging of goods and daily life of people due to the advantages of environmental protection, beauty, convenient carrying and the like.
In the prior art, the method for forming the square bottom of the paper bag machine comprises the following steps: the bottom opening clamp and the side clamp simultaneously clamp the upper layer and the lower layer of the paper tube and pull the paper tube open, and the pressing plate simultaneously presses the two pulled sides to form the square bottom of the paper bag.
However, when the paper tube is pulled open, the paper tube is easily broken by the bottom opening clamp, so that raw material loss is caused, and the processing efficiency is very influenced.
Disclosure of Invention
The invention aims to provide a bag bottom forming device to solve the technical problem that a paper tube in the prior art is easy to break when being pulled open.
The invention provides a bag bottom forming device, which comprises a bottom opening device and a large hub wheel device;
the large hub wheel device is opposite to the bottom opening device;
the bottom opening device comprises a bottom opening shaft, a paper clamp assembly and a first air suction mechanism;
the paper clip assembly is used for fixing raw materials; the first air suction mechanism comprises a suction nozzle, and the suction nozzle is used for adsorbing raw materials; the paper clip assembly and the suction nozzle are both arranged on the bottom opening shaft, and the paper clip assembly is positioned on two sides of the suction nozzle along the axial direction of the bottom opening shaft;
the large hub wheel device comprises a main shaft, a clamp assembly and a second air suction mechanism; the second air suction mechanism is used for adsorbing raw materials; the clamp assembly and the second air suction mechanism are both arranged on the main shaft;
the first air suction mechanism and the second air suction mechanism can be arranged oppositely.
Furthermore, the paper clip assembly is provided with an air suction hole, and the air suction hole is used for adsorbing raw materials.
Further, the paper clip assembly is connected with the bottom opening shaft in a sliding mode, the paper clip assembly can slide along the axial direction of the bottom opening shaft, and the paper clip assembly can be locked with the bottom opening shaft.
Further, the bag bottom forming device also comprises a large hub wheel device;
the large hub wheel device is opposite to the bottom opening device;
the large hub wheel device comprises a main shaft, a clamp assembly and a second air suction mechanism;
the second air suction mechanism is used for adsorbing raw materials;
the clamp assembly and the second air suction mechanism are both arranged on the main shaft.
Furthermore, one end of the bottom opening shaft is provided with a driven gear, one end of the main shaft is provided with a transmission gear, and the driven gear is meshed with the transmission gear.
Further, the large hub wheel device further comprises a cam assembly;
the main shaft comprises a transmission side shaft, a mandrel and a fixed flange;
two ends of the mandrel are respectively connected with the fixed flanges, and the transmission side shaft penetrates through one fixed flange and is connected with one end of the mandrel;
the large hub wheel device is provided with an annular outer side wall, the clamp assembly is connected with the mandrel, and the clamp assembly is located on the annular outer side wall;
the cam assembly is arranged at two ends of the mandrel and is in clearance fit with the mandrel, and the cam assembly can be in contact with the clamp assembly to drive the clamp assembly to open and close.
Further, the cam assembly includes a cam plate and a cam block;
the cam block is arranged on the annular side wall of the cam disc, can slide along the circumferential direction of the cam disc and can be locked with the cam disc.
Further, the second air suction mechanism comprises an air distribution block, an air suction plate and an air suction core;
the gas suction plate is connected with the mandrel, the gas suction plate is located on the annular outer side wall, the gas suction core is arranged inside the mandrel, one end of the gas suction core is connected with the gas suction plate, the other end of the gas suction core is connected with the gas distribution block, and the gas distribution block is arranged at one end, far away from the mandrel, of the fixing flange.
Further, the clamp assembly comprises a first clamp assembly, a second clamp assembly, an edge clamp assembly and a center clamp assembly;
the central clamp assembly, the side clamp assembly, the first clamp and the second clamp are sequentially arranged at intervals along the circumferential direction of the annular outer side wall;
the side clamps are respectively arranged at two ends of the air suction plate along the axial direction of the annular outer side wall; the central clamp and the first clamp are respectively arranged on two sides of the air suction plate along the circumferential direction of the annular outer side wall;
the central clamp can be matched with the air suction plate to clamp or release raw materials, and the edge clamp assembly can be matched with the air suction plate to clamp or release the raw materials.
Further, the first clamp assembly comprises a first clamp and a first clamp web, the first clamp web is fixedly connected with the mandrel, the first clamp is arranged on the first clamp web, and the cam assembly can be in contact with the first clamp to drive the first clamp to open and close;
the second clamp assembly comprises a second clamp and a second clamp radial plate, the second clamp radial plate is sleeved on the mandrel and can rotate around the axis of the mandrel, and the second clamp radial plate can be locked with the mandrel; the second clamp is arranged on the second clamp radial plate, and the cam assembly can be in contact with the second clamp to drive the second clamp to open and close;
the central clamp assembly comprises a central clamp radial plate and a central clamp, the central clamp radial plate is sleeved on the mandrel and can rotate around the axis of the mandrel, and the central clamp radial plate can be locked with the mandrel; the center clamp is arranged on the radial plate of the center clamp, and the cam component can be in contact with the center clamp to drive the center clamp to open and close;
the side clamp assembly comprises a side clamp and a side clamp radial plate, the side clamp radial plate is sleeved on the mandrel and can move along the axial direction of the mandrel, and the side clamp radial plate can be locked with the mandrel; the limit anchor clamps set up on the limit anchor clamps radials, the cam subassembly can with the limit anchor clamps contact is in order to drive limit anchor clamps open and shut.
The invention also aims to provide a bag making machine which comprises the bag bottom forming device.
The invention provides a bag bottom forming device, which comprises a bottom opening device and a large hub wheel device; the large hub wheel device is opposite to the bottom opening device; the bottom opening device comprises a bottom opening shaft, a paper clamp assembly and a first air suction mechanism; the paper clip assembly is used for fixing raw materials; the first air suction mechanism comprises a suction nozzle, and the suction nozzle is used for adsorbing raw materials; the paper clip assembly and the suction nozzle are both arranged on the bottom opening shaft, and the paper clip assembly is positioned on two sides of the suction nozzle along the axial direction of the bottom opening shaft; the large hub wheel device comprises a main shaft, a clamp assembly and a second air suction mechanism; the second air suction mechanism is used for adsorbing raw materials; the clamp assembly and the second air suction mechanism are both arranged on the main shaft; the first air suction mechanism and the second air suction mechanism can be arranged oppositely. The axial direction of the bottom opening shaft and the axial direction of the main shaft are arranged in parallel, the bottom opening shaft can rotate around the axis of the bottom shaft, and the main shaft can rotate around the axis of the main shaft. The bottom opening shaft and the main shaft rotate to drive components on the bottom opening shaft and the main shaft to rotate, when the first air suction mechanism and the second air suction mechanism are oppositely arranged, the paper clamp assembly clamps two end areas of the upper layer of the paper tube, and the first air suction mechanism adsorbs the middle area of the upper layer of the paper tube; the lower floor of fiber container is adsorbed to the second air suction mechanism, the lower floor of fiber container is cliied to the anchor clamps subassembly, first air suction mechanism upwards adsorbs the upper strata of fiber container, the lower floor of fiber container is adsorbed downwards to the second air suction mechanism, first air suction mechanism and second air suction mechanism can assist paper to press from both sides subassembly and anchor clamps subassembly and open the upper strata and the lower floor of fiber container, open the upper strata and the lower floor action of fiber container comparatively softly through absorbent mode, can prevent that the fiber container from pressing from both sides brokenly, improve machining efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a large wheel hub device in a bag bottom forming device provided by an embodiment of the invention;
FIG. 2 is a plan view of a large wheel hub assembly in a bag bottom forming apparatus provided by an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a bottom opening device in a bag bottom forming device provided by an embodiment of the invention;
FIG. 4 is a schematic structural diagram of a bag making machine according to an embodiment of the present invention.
Icon: 1-bottom opening device; 11-open bottom shaft; 12-a suction nozzle; 13-a paper clip assembly; 131-adjusting a scale shaft; 132-an adjustment base; 133-a mount; 14-a driven gear; 2-a large hub wheel device; 21-a main shaft; 211-a fixed flange; 212-drive side shaft; 213-a mandrel; 214-a drive gear; 22-a clamp assembly; 220-a first clamp web; 221-a first clamp; 222-a second clamp; 223-a second clamp web; 224-a center clamp; 225-center clamp web; 226-edge clamp; 227-edge clamp web; 228-cam swing arm; 23-second air suction mechanism, 231-air suction plate; 232-air absorption core; 24-a cam assembly; 241-a cam disc; 25-adjusting the nut; 26-adjusting screw; 3-bottom roll; 31-folding knife; 4-opening the bottom auxiliary member; 5-driving a motor; 6-a transmission shaft; 7-locking the bolt; 8-pin.
Detailed Description
The invention provides a bag bottom forming device and a bag making machine, and the detailed description of the invention is given in the following by a plurality of embodiments.
Example 1
The bag bottom forming device provided by the present embodiment, as shown in fig. 1 to 4, includes a bottom opening device 1 and a large hub wheel device 2; the large hub wheel device 2 is arranged opposite to the bottom opening device 1; the bottom opening device 1 comprises a bottom opening shaft 11, a paper clip assembly 13 and a first air suction mechanism; the paper clip assembly 13 is used for fixing the raw materials; the first air suction mechanism comprises a suction nozzle 12, and the suction nozzle 12 is used for adsorbing raw materials; the paper clip assembly 13 and the suction nozzle 12 are both arranged on the bottom opening shaft 11, and the paper clip assembly 13 is positioned on two sides of the suction nozzle 12 along the axial direction of the bottom opening shaft 11; the large hub wheel device 2 comprises a main shaft 21, a clamp assembly 22 and a second air suction mechanism 23; the second air suction mechanism 23 is used for adsorbing raw materials; the clamp assembly 22 and the second air suction mechanism 23 are both arranged on the main shaft 21; the first suction mechanism and the second suction mechanism 23 can be disposed opposite to each other.
The axial direction of the open bottom shaft 11 and the axial direction of the main shaft 21 are arranged in parallel, the open bottom shaft 11 can rotate around the axial line of the open bottom shaft 11, and the main shaft 21 can rotate around the axial line of the main shaft 21. The bottom opening shaft 11 and the main shaft 21 rotate to drive components on the bottom opening shaft 11 and the main shaft 21 to rotate, when the first air suction mechanism and the second air suction mechanism 23 are oppositely arranged, the paper clamp assembly 13 clamps two end areas of the upper layer of the paper tube, and the first air suction mechanism adsorbs the middle area of the upper layer of the paper tube; the lower floor of a fiber container is adsorbed to second air suction mechanism 23, the lower floor of a fiber container is cliied to anchor clamps subassembly 22, first air suction mechanism upwards adsorbs the upper strata of a fiber container, the lower floor of a fiber container is adsorbed downwards to second air suction mechanism 23, first air suction mechanism and second air suction mechanism 23 can assist paper clamp subassembly 13 and anchor clamps subassembly 22 to open the upper strata and the lower floor of a fiber container, it is comparatively gentle with the lower floor action to open the upper strata of a fiber container through absorbent mode, can prevent that a fiber container from pressing from both sides brokenly, improve machining efficiency.
After the upper layer and the lower layer of the paper tube are opened, the first air suction mechanism is disconnected to suck air and does not adsorb the paper tube, the paper clamp assembly 13 releases the paper tube and does not clamp the paper tube, the paper tube is fixed and adsorbed by the clamp assembly 22 and the second air suction mechanism 23 and then rotates along with the large wheel hub device 2, and under the combined action of the clamp assembly 22 and the second air suction mechanism 23, the paper tube can be completely and flatly attached to the annular outer side wall of the large wheel hub device 2, and wrinkling and displacement of the paper tube can be prevented.
The paper clip assembly 13 may include a paper clip, and the paper clip may clamp or release the paper tube during opening and closing, and the specific structure of the paper clip is the same as that of the paper clip in the prior art, and will not be described herein again.
Further, the paper clip assembly 13 is provided with an air suction hole for absorbing the raw material. When the paper clip assembly 13 is used for clamping a paper tube, the air suction holes can assist in absorbing the paper tube so as to reduce the clamping force of the paper clip assembly 13 on the paper tube and prevent the paper tube from being damaged.
The bag bottom forming device can be provided with a gas distribution seat and a vacuum pump, and the suction nozzle 12 and the suction hole are respectively connected with the vacuum pump through the gas distribution seat, so that the vacuum pump respectively pumps air to the suction nozzle 12 and the suction hole. The middle part of the bottom-opening shaft 11 is provided with a suction hole, and the suction nozzle 12 is communicated with the suction hole.
The paper clip assembly 13 can be fixedly arranged on the bottom opening shaft 11 or can be arranged on the bottom opening shaft 11 in a sliding mode.
In this embodiment, the paper clip assembly 13 is slidably connected to the bottom opening shaft 11, the paper clip assembly 13 can slide along the axial direction of the bottom opening shaft 11, and the paper clip assembly 13 can be locked with the bottom opening shaft 11.
Through the axial slip that drives paper clamp assembly 13 along opening end axle 11, can adjust the distance between two paper clamp assemblies 13 to the fiber container of adaptation different width.
Specifically, the paper clip assembly 13 includes adjusting base 132 and paper clip body, and the paper clip body sets up on adjusting base 132, and the paper clip body can open and shut with the centre gripping or loosen the fiber container, adjusts the base 132 cover and establishes on opening end axle 11, adjusts base 132 and can follow the axial displacement who opens end axle 11 to drive the paper clip body along the axial displacement who opens end axle 11. After the adjusting base 132 is moved to the preset position, it can be locked on the open bottom shaft 11 by the lock nut.
In another embodiment, the open bottom shaft 11 may be provided with a screw thread, and the adjusting base 132 is screwed with the open bottom shaft 11, so that the adjusting base 132 can move along the axial direction of the open bottom shaft 11 and be locked on the open bottom shaft 11.
Preferably, an adjusting scale shaft 131 can be further arranged on the bottom opening device 1, the adjusting scale shaft 131 is arranged in parallel and at a distance from the bottom opening shaft 11, and the distance between the two paper clip assemblies 13 can be read by adjusting the scale shaft 131.
In this embodiment, open fixedly connected with mount pad 133 on the end axle 11, adjust scale axle 131 and fix on mount pad 133, be equipped with the sleeve on the paper presss from both sides the subassembly 13, sleeve and the axial displacement who adjusts scale axle 131, the sleeve can be followed the axial displacement who adjusts scale axle 131, paper presss from both sides subassembly 13 and open end axle 11 sliding connection, when the axial displacement of paper clamp subassembly along opening end axle 11, drive the sleeve and remove along adjusting scale axle 131, thereby can read the distance between two paper clamp subassemblies 13 through adjusting scale axle 131.
Further, one end of the open bottom shaft 11 is provided with a driven gear 14, one end of the main shaft 21 is provided with a transmission gear 214, and the driven gear 14 is meshed with the transmission gear 214.
The external motor is in transmission connection with the transmission gear 214 to drive the transmission gear 214 to rotate around the axis of the transmission gear 214, and further drive the driven gear 14 to rotate around the axis of the driven gear 14.
The driven gear 14 is meshed with the transmission gear 214 to drive the main shaft 21 and the bottom opening shaft 11 to rotate, so that the bottom opening device 1 can rotate together with the large hub wheel device 2, the first air suction mechanism and the second air suction mechanism 23 can be arranged oppositely at a preset position, the air suction positions of the large hub wheel device 2 and the bottom opening device 1 are kept synchronous, and the operation accuracy is improved.
Further, the large hub wheel device 2 further includes a cam assembly 24; the main shaft 21 comprises a transmission side shaft 212, a mandrel 213 and a fixing flange 211; two ends of the mandrel 213 are respectively connected with the fixed flanges 211, and the transmission side shaft 212 passes through one fixed flange 211 and is connected with one end of the mandrel 213; the large hub wheel device 2 has an annular outer side wall, the clamp assembly 22 is connected with the mandrel 213, and the clamp assembly 22 is located on the annular outer side wall; the cam assembly 24 is disposed at two ends of the core shaft 213, and the cam assembly 24 is in clearance fit with the core shaft 213, and the cam assembly 24 can contact with the clamp assembly 22 to drive the clamp assembly 22 to open and close.
Wherein the cam assembly 24 is disposed at both ends of the spindle 213, and the cam assembly 24 is kept stationary while the main shaft 21 rotates.
The main shaft 21 is formed by combining and fastening the transmission side shaft 212, the mandrel 213 and the fixing flange 211, and when a single part needs to be replaced or repaired, only the single part needs to be replaced or repaired, so that the maintenance is convenient. Also, the transmission-side shaft 212 or the spindle 213 can be adjusted in size according to the number of the jigs in the jig assembly 22 to adjust the mounting area of the main shaft 21 for mounting the jigs.
When the main shaft 21 rotates, the cam assembly 24 keeps static, when the main shaft 21 rotates, the clamps in the clamp assembly 22 synchronously rotate along with the main shaft 21, the clamps in the clamp assembly 22 regularly contact with the cam in the rotating process, and the clamps in the clamp assembly 22 intermittently open and close due to continuous contact with the cam. The specific structure of the clamp is the same as that of the clamp in the prior art, and the detailed description is omitted here.
As an implementable manner, the cam assembly 24 may employ an integral cam, the cam assembly 24 including a cam plate 241 and a cam block; the cam block is fixed on the annular side wall of the cam disc 241, the cam disc 241 and the cam block are integrally arranged, the stability between the cam disc 241 and the cam block can be effectively improved, and the cam assembly 24 is not easy to deform when the cam assembly is used for a long time.
As another practicable, the cam assembly 24 includes a cam plate 241 and a cam block; a cam block is provided on an annular side wall of the cam plate 241, the cam block can slide along the circumferential direction of the cam plate 241, and the cam block can be locked with the cam plate 241.
When the opening and closing frequency and time of the clamp need to be adjusted, the position of the cam block on the cam disc 241 can be adjusted correspondingly, the applicability of the cam assembly can be improved, and the cam does not need to be replaced.
A plurality of connecting positions can be arranged on the annular side wall of the cam plate 241 at intervals along the circumferential direction of the annular side wall, and the cam block can be clamped or screwed with the connecting positions so that the cam block can be arranged on different positions on the annular side wall of the cam plate 241.
As an implementation manner, the second air suction mechanism 23 may be externally disposed on the annular outer side wall of the large hub wheel device 2, and an air suction hole is disposed on the annular outer side wall, the air suction hole is flush with the object placing surface of the clamp, when the clamp fixes the paper tube, the paper tube is flatly attached to the air suction hole, and the air suction hole can simultaneously adsorb the surface of the paper tube.
In this embodiment, the second suction mechanism 23 includes a gas distribution block, a suction plate 231, and a suction core 232; inhale gas plate 231 and be connected with dabber 213, and inhale that gas plate 231 is located annular lateral wall, inhale that core 232 sets up inside dabber 213, the one end and the board 231 of inhaling of core 232 are connected, the other end and the gas distribution piece of inhaling core 232 are connected, and the gas distribution piece sets up the one end of keeping away from dabber 213 at mounting flange 211.
The air suction core 232 is arranged in the main shaft 21, the position for bearing and fixing the air suction core 232 does not need to be arranged outside the main shaft 21, a large amount of space is saved, after the air suction plate 231 is communicated with the air suction core 232, the air suction plate 231 is arranged outside the mandrel 213, the paper tube is borne by the air suction plate 231 when being arranged on the surface of the hub wheel, the paper tube is fixed on the surface of the air suction plate 231 through a clamp, meanwhile, the paper tube is adsorbed by the air suction plate 231, and the adjustment of the suction force can be realized through adjusting the air distribution block, so that the operation is convenient.
The clamp assembly 22 may include one clamp or a plurality of clamps.
In this embodiment, the clamp assembly 22 includes a first clamp assembly, a second clamp assembly, an edge clamp assembly, and a center clamp assembly; the central clamp 224, the edge clamp 226, the first clamp 221 and the second clamp 222 are sequentially arranged at intervals along the circumferential direction of the annular outer side wall; the edge clamps 226 are respectively arranged at two ends of the air suction plate 231 along the axial direction of the annular outer side wall; the central clamp 224 and the first clamp 221 are respectively arranged on two sides of the air suction plate 231 along the circumferential direction of the annular outer side wall; the center clamp 224 can cooperate with the suction plate 231 to clamp or release the material, and the edge clamp assembly can cooperate with the suction plate 231 to clamp or release the material.
When the bottom is opened, the paper clip assembly 13 clips the two end areas of the upper layer of the paper tube, and the first air suction mechanism sucks the middle area of the upper layer of the paper tube; the second air suction mechanism 23 adsorbs the lower layer of the paper tube, the central clamp 224 clamps the lower layer of the paper tube, the first air suction mechanism upwards adsorbs the upper layer of the paper tube, the second air suction mechanism 23 downwards adsorbs the lower layer of the paper tube, the first air suction mechanism and the second air suction mechanism 23 can assist the paper clamp assembly 13 and the central clamp 224 to open the upper layer and the lower layer of the paper tube, after the upper layer and the lower layer of the paper tube are opened, the first air suction mechanism is disconnected to suck air and not adsorb the paper tube, the paper clamp assembly 13 loosens the paper tube and does not clamp the paper tube, the paper tube is fixed by the central clamp 224 and the second air suction mechanism 23 and rotates along with the large hub wheel device 2, meanwhile, the edge clamp 226 clamps two ends of the paper tube to fix the size of the paper bag, when the first clamp 221 and the second clamp 222 are opened, the first clamp opening and the second clamp opening can be respectively formed, when the length of the bottom of the paper bag is made, the folding knife 31 of the external equipment is respectively inserted into the first clamp opening and the second clamp opening to make the paper tube form a crease, the distance between the two folding marks is the length of the bag bottom.
The central clamp 224 effectively clamps and fixes the paper tube during the rotation of the paper tube along with the large hub wheel device 2. With the aid of the two edge clamps 226, the paper tube is not prone to wrinkling.
Further, the first clamp assembly includes a first clamp 221 and a first clamp web 220, the first clamp web 220 is fixedly connected to the spindle 213, the first clamp 221 is disposed on the first clamp web 220, and the cam assembly 24 can contact with the first clamp 221 to drive the first clamp 221 to open and close.
The first clamp 221 is connected with the mandrel 213 through the first clamp web 220, and when a single component is damaged, the damaged component can be replaced independently, so that loss is reduced, and replacement and maintenance are facilitated.
The first fixture 221 may include a first fixing member fixed to the first fixture web 220, and a first rotating member rotatably connected to the first fixture web 220 and forming a first rotating shaft, the first rotating member being capable of rotating around an axis of the first rotating shaft so as to move one end of the first rotating member toward or away from the first fixing member, and a roller or a cam swing arm 228 may be provided at the other end of the first rotating member to be linked with the cam block.
For example, a cam swing arm 228 is provided on the other end of the first rotating member, and the cam swing arm 228 is in contact with the cam block.
During the rotation of the spindle 213, the first rotating member rotates along with the spindle 213 to change the relative position with the cam block, thereby opening and closing the first clamp 221.
The size of first anchor clamps mouth can set up to relatively great size, is convenient for the folding knife when forming the crease to the bag bottom and seeks, and the fault-tolerant rate is higher.
The second clamp assembly comprises a second clamp 222 and a second clamp web 223, the second clamp web 223 is sleeved on the spindle 213, the second clamp web 223 can rotate around the axis of the spindle 213, and the second clamp web 223 can be locked with the spindle 213; the second clip 222 is disposed on a second clip web 223, and the cam assembly 24 can contact the second clip 222 to move the second clip 222 open and closed.
In this embodiment, the rotation angle of the second jig web 223 is 0 ° to 19 °, and after the second jig web 223 rotates by a suitable angle, the second jig web 223 can be locked on the spindle 213 by a screw or a pin, so as to adjust the distance between the first jig component and the second jig component, thereby adjusting the width of the bag bottom.
The second fixture web 223 is disposed in the middle of the spindle 213, the number of the first fixture webs 220 is two, and the two first fixture webs 220 are symmetrically disposed on the outer side of the second fixture web 223 respectively.
The structure and principle of the second fixture 222 are identical to those of the first fixture 221, and are not described in detail herein. To prevent the cam swing arm 228 on the second jig 222 from interfering with the cam swing arm 228 on the first jig 221, the cam swing arm 228 on the second jig 222 is staggered from the cam swing arm 228 on the first jig 221.
All be provided with the layer board on first anchor clamps subassembly and the second anchor clamps subassembly, under first anchor clamps subassembly and the closed state of second anchor clamps subassembly, form great space between first anchor clamps subassembly and the second anchor clamps subassembly, the layer board can prevent effectively that the fiber container from falling into this space.
Wherein, the layer board can be arc layer board, and the outline of layer board can be rake shape.
The central clamp assembly comprises a central clamp web 225 and a central clamp 224, the central clamp web 225 is sleeved on the mandrel 213, the central clamp web 225 can rotate around the axis of the mandrel 213, and the central clamp web 225 can be locked with the mandrel 213; the center clamp 224 is disposed on a center clamp web 225, and the cam assemblies 24 can contact the center clamp 224 to move the center clamp 224 open and closed.
The number of the center jig webs 225 is two, and the two center jig webs 225 are symmetrically disposed at outer sides of the two first jig webs 220.
In this embodiment, the rotation angle of the web 225 of the center clamp is 0 ° to 10 °, and after the web 225 of the center clamp rotates by a suitable angle, the web can be locked on the mandrel 213 by a screw or a pin, so as to adjust the distance between the center clamp component and the first clamp component, thereby adjusting the height of the bag body.
The first clamp web 220 and the first clamp web 220 may be locked by the locking bolt 7 to fix the distance of the center clamp assembly from the first clamp assembly.
The center clamp 224 is rotatably connected to a center clamp web 225 and forms a center rotation axis, the center clamp 224 can rotate around the axis of the center rotation axis, so that one end of the center clamp 224 moves toward or away from the suction plate 231, and a roller or a cam swing arm 228 may be provided on the other end of the center clamp 224 to be interlocked with the cam block.
For example, a cam swing arm 228 is provided on the other end of the center clamp 224, the cam swing arm 228 contacting the cam block. During the rotation of the spindle 213, the center clamp 224 rotates along with the spindle 213 to change the relative position with the cam block, thereby achieving the opening and closing of the center clamp 224.
To prevent the cam swing arm 228 on the second jig 222, the cam swing arm 228 on the first jig 221, and the cam swing arm 228 on the center jig 224 from interfering, the cam swing arm 228 on the second jig 222, the cam swing arm 228 on the first jig 221, and the cam swing arm 228 on the center jig 224 are staggered.
The edge clamp assembly comprises an edge clamp 226 and an edge clamp web 227, the edge clamp web 227 is sleeved on the mandrel 213, the edge clamp web 227 can move along the axial direction of the mandrel 213, and the edge clamp web 227 can be locked with the mandrel 213; edge clamp 226 is disposed on edge clamp web 227 and cam assembly 24 can contact edge clamp 226 to cause edge clamp 226 to open and close.
The number of the edge clamp webs 227 is two, and the two edge clamp webs 227 are symmetrically arranged at the outer sides of the two center clamp webs 225.
Edge anchor clamps radials 227 can follow the axial displacement of dabber 213, and edge anchor clamps radials 227 can overlap and establish on dabber 213 to can follow the axial displacement of dabber 213, after edge anchor clamps radials 227 removed to suitable position, can lock on dabber 213 through parts such as screw or pin, with the distance between two regulation limit anchor clamps 226, thereby realize the regulation of bag end width, it is comparatively convenient to adjust, easy operation.
In this embodiment, the fixed cover of limit anchor clamps radials 227 is established on adjusting nut 25, and adjusting nut 25 cover is established on dabber 213, and adjusting nut 25 and dabber 213 threaded connection rotate for dabber 213 through adjusting nut 25, can drive the axial displacement that limit anchor clamps radials 227 can follow dabber 213 to because adjusting nut 25 and dabber 213 threaded connection, limit anchor clamps radials 227 can lock with dabber 213. The cam plate 241 is also fixedly secured to the adjusting nut 25 such that the side jig web 227 is fixed in axial distance from the cam plate 241 along the spindle 213.
Specifically, the fixed cover of limit anchor clamps radials 227 is established on adjusting nut 25, the cover is equipped with adjusting screw 26 on the surface of dabber 213, adjusting screw 26 can rotate around the axis of dabber 213, adjusting nut 25 overlaps and is established on adjusting screw 26, and adjusting nut 25 and adjusting screw 26 threaded connection, adjusting screw 26 can drive limit anchor clamps radials 227 along the axial displacement of dabber 213 on adjusting screw 26 when rotating, and because adjusting nut 25 and adjusting screw 26 threaded connection, limit anchor clamps radials 227 can lock with adjusting screw 26, and then make limit anchor clamps radials 227 and dabber 213 lock.
The adjusting screw 26 is in transmission connection with an external driving motor 5 through a gear pair, so that the motor is used for driving the edge fixture web 227 to move, and the size of the paper bag is automatically adjusted. The convenience of regulation can be further improved, and the production efficiency is improved. And the driving motor drives the gears at the two ends of the transmission shaft 6 to rotate, the gears at the two ends of the transmission shaft 6 are respectively in transmission connection with the adjusting screw rods 26 on the two edge fixture radial plates 227, the driving motor 5 respectively drives the gears on the two edge fixture radial plates 227 to synchronously rotate through a gear pair, and the gears on the two edge fixture radial plates 227 rotate at the same speed and in opposite directions through the speed ratio between the gears.
In addition, the edge clamp web 227 is connected to the first clamp web 220 by a pin 8 to prevent rotation of the edge clamp web 227 relative to the first clamp web 220 about the axial direction of the spindle 213.
The side jig 226 is rotatably coupled to the side jig web 227 and forms a side jig rotating shaft, and the side jig 226 can be rotated about the axis of the side jig rotating shaft, so that one end of the side jig 226 moves toward or away from the suction plate 231, and a roller or a cam swing arm 228 may be provided on the other end of the side jig 226 to be interlocked with the cam block.
For example, a cam swing arm 228 is provided on the other end of the side clamp 226, the cam swing arm 228 being in contact with the cam block. During the rotation of the spindle 213, the side clamp 226 rotates along with the spindle 213 to change the relative position with the cam block, thereby achieving the opening and closing of the side clamp 226.
To prevent the cam swing arm 228 on the side jig 226, the cam swing arm 228 on the second jig 222, the cam swing arm 228 on the first jig 221, and the cam swing arm 228 on the center jig 224 from interfering, the cam swing arm 228 on the side jig 226, the cam swing arm 228 on the second jig 222, the cam swing arm 228 on the first jig 221, and the cam swing arm 228 on the center jig 224 are alternately disposed.
Example 2
The bag making machine provided by the embodiment comprises the bag bottom forming device provided by the embodiment 1. The axial direction of the open bottom shaft 11 and the axial direction of the main shaft 21 are arranged in parallel, the open bottom shaft 11 can rotate around the axial line of the open bottom shaft 11, and the main shaft 21 can rotate around the axial line of the main shaft 21. The bottom opening shaft 11 and the main shaft 21 rotate to drive components on the bottom opening shaft 11 and the main shaft 21 to rotate, when the first air suction mechanism and the second air suction mechanism 23 are oppositely arranged, the paper clamp assembly 13 clamps two end areas of the upper layer of the paper tube, and the first air suction mechanism adsorbs the middle area of the upper layer of the paper tube; the lower floor of a fiber container is adsorbed to second air suction mechanism 23, the lower floor of a fiber container is cliied to anchor clamps subassembly 22, first air suction mechanism upwards adsorbs the upper strata of a fiber container, the lower floor of a fiber container is adsorbed downwards to second air suction mechanism 23, first air suction mechanism and second air suction mechanism 23 can assist paper clamp subassembly 13 and anchor clamps subassembly 22 to open the upper strata and the lower floor of a fiber container, it is comparatively gentle with the lower floor action to open the upper strata of a fiber container through absorbent mode, can prevent that a fiber container from pressing from both sides brokenly, improve machining efficiency.
Specifically, the bag machine further includes a bottom roller 3, a bottom opening assist 4, and an adjustment conveying device. The bottom roller 3 is provided with a folding knife 31, the bottom roller 3 is in transmission connection with the bag bottom forming device, the bottom opening auxiliary part 4 is arranged on one side of the bag bottom forming device, and the adjusting and conveying device is in transmission connection with the transmission gear 214.
When the paper tube drawing machine is in operation, the raw paper tube needs to be drawn in the bag bottom forming device and attached to the large hub wheel device 2 to rotate along with the large hub wheel device 2 after being drawn, and after the paper tube is drawn, the bottom-opening auxiliary piece 4 is pressed towards the large hub wheel device 2 to flatten the drawn paper tube, so that the paper tube can be completely and smoothly adhered to the surface of the large hub wheel device 2, and wrinkling caused by displacement or tilting can be avoided.
And the bottom roller 3 and the large hub wheel device 2 rotate synchronously, the raw paper tube is completely attached to the large hub wheel device 2, and when the large hub wheel device 2 rotates to the position intersected with the bottom roller 3, the folding knives 31 on the surface of the bottom roller 3 are respectively inserted into the first clamp opening and the second clamp opening, so that the bottom crease of the bag bottom is formed, and the paper tube is conducted to other processes after the crease is formed, and sequentially passes through gluing and bottom combining.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The bag bottom forming device is characterized by comprising a bottom opening device (1) and a large hub wheel device (2);
the large hub wheel device (2) is opposite to the bottom opening device (1);
the bottom opening device (1) comprises a bottom opening shaft (11), a paper clamp assembly (13) and a first air suction mechanism;
the paper clip component (13) is used for fixing raw materials; the first air suction mechanism comprises a suction nozzle (12), and the suction nozzle (12) is used for adsorbing raw materials; the paper clip assembly (13) and the suction nozzle (12) are both arranged on the bottom opening shaft (11) and are positioned on two sides of the suction nozzle (12) along the axial direction of the bottom opening shaft (11);
the large hub wheel device (2) comprises a main shaft (21), a clamp assembly (22) and a second air suction mechanism (23); the second air suction mechanism (23) is used for adsorbing raw materials; the clamp assembly (22) and the second air suction mechanism (23) are arranged on the main shaft (21);
the first suction mechanism and the second suction mechanism (23) can be arranged oppositely.
2. A bag bottom forming device according to claim 1, wherein the paper clip assembly (13) is provided with a suction hole for absorbing raw materials.
3. A bag bottom forming device according to claim 1, characterized in that the paper clip assembly (13) is slidably connected with the bottom opening shaft (11), the paper clip assembly (13) can slide along the axial direction of the bottom opening shaft (11), and the paper clip assembly (13) can be locked with the bottom opening shaft (11).
4. A bag bottom forming device according to claim 1, characterized in that one end of the bottom opening shaft (11) is provided with a driven gear (14), one end of the main shaft (21) is provided with a transmission gear (214), and the driven gear (14) is meshed with the transmission gear (214).
5. The bag bottom forming device according to claim 1, wherein the large hub wheel device (2) further comprises a cam assembly (24);
the main shaft (21) comprises a transmission side shaft (212), a mandrel (213) and a fixed flange (211); two ends of the mandrel (213) are respectively connected with the fixed flanges (211), and the transmission side shaft (212) penetrates through one fixed flange (211) and is connected with one end of the mandrel (213);
the large hub wheel device (2) is provided with an annular outer side wall, the clamp assembly (22) is connected with the mandrel (213), and the clamp assembly (22) is located on the annular outer side wall;
the cam assembly (24) is arranged at two ends of the mandrel (213), the cam assembly (24) is in clearance fit with the mandrel (213), and the cam assembly (24) can be in contact with the clamp assembly (22) to drive the clamp assembly (22) to open and close.
6. The bag bottom forming apparatus according to claim 5, wherein the cam assembly (24) comprises a cam disc (241) and a cam block;
the cam block is arranged on the annular side wall of the cam disc (241), can move along the circumferential direction of the cam disc (241), and can be locked with the cam disc (241).
7. The bag bottom forming device according to claim 5, wherein the second suction mechanism (23) comprises a gas distribution block, a suction plate (231) and a suction core (232);
inhale gas board (231) with dabber (213) are connected, just inhale gas board (231) are located on the annular lateral wall, it sets up to inhale gas core (232) inside dabber (213), the one end of inhaling gas core (232) with inhale gas board (231) and connect, the other end of inhaling gas core (232) with the distribution piece is connected, just the distribution piece sets up flange (211) is kept away from the one end of dabber (213).
8. The bottom molding apparatus of claim 7 wherein the clamp assembly (22) comprises a first clamp assembly, a second clamp assembly, an edge clamp assembly, and a center clamp assembly;
the central clamp assembly, the side clamp assembly, the first clamp assembly and the second clamp assembly are sequentially arranged at intervals along the circumferential direction of the annular outer side wall;
the edge clamp assemblies are respectively arranged at two ends of the air suction plate (231) along the axial direction of the annular outer side wall; the central clamp assembly and the first clamp assembly are respectively arranged on two sides of the air suction plate (231) along the circumferential direction of the annular outer side wall;
the central clamp assembly can be matched with the air suction plate (231) to clamp or release raw materials, and the edge clamp assembly can be matched with the air suction plate (231) to clamp or release raw materials.
9. The bag bottom forming device according to claim 8, wherein the first clamp assembly comprises a first clamp (221) and a first clamp web (220), the first clamp web (220) is fixedly connected with the mandrel (213), the first clamp (221) is arranged on the first clamp web (220), and the cam assembly (24) can be contacted with the first clamp (221) to drive the first clamp (221) to open and close;
the second clamp assembly comprises a second clamp (222) and a second clamp web plate (223), the second clamp web plate (223) is sleeved on the mandrel (213), the second clamp web plate (223) can rotate around the axis of the mandrel (213), and the second clamp web plate (223) can be locked with the mandrel (213); the second clamp (222) is arranged on the second clamp web (223), and the cam assembly (24) can be in contact with the second clamp (222) to drive the second clamp (222) to open and close;
the central clamp assembly comprises a central clamp web plate (225) and a central clamp (224), the central clamp web plate (225) is sleeved on the mandrel (213), the central clamp web plate (225) can rotate around the axis of the mandrel (213), and the central clamp web plate (225) can be locked with the mandrel (213); the center clamp (224) is arranged on the center clamp web plate (225), and the cam assembly (24) can be in contact with the center clamp (224) to drive the center clamp (224) to open and close;
the side clamp assembly comprises a side clamp (226) and a side clamp web plate (227), the side clamp web plate (227) is sleeved on the mandrel (213), the side clamp web plate (227) can move along the axial direction of the mandrel (213), and the side clamp web plate (227) can be locked with the mandrel (213); side anchor clamps (226) set up on side anchor clamps radials (227), cam subassembly (24) can with side anchor clamps (226) contact is in order to drive side anchor clamps (226) open and shut.
10. A bag making machine comprising the bag bottom forming apparatus of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111186170.XA CN113910681A (en) | 2021-10-12 | 2021-10-12 | Bag bottom forming device and bag making machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111186170.XA CN113910681A (en) | 2021-10-12 | 2021-10-12 | Bag bottom forming device and bag making machine |
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| Publication Number | Publication Date |
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| CN113910681A true CN113910681A (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111186170.XA Pending CN113910681A (en) | 2021-10-12 | 2021-10-12 | Bag bottom forming device and bag making machine |
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| CN (1) | CN113910681A (en) |
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