CN111251662B

CN111251662B - Automatic oral feeding device for paper bag machine

Info

Publication number: CN111251662B
Application number: CN202010224859.6A
Authority: CN
Inventors: 田红波
Original assignee: Xiamen Jinruiqi Industry And Trade Co ltd
Current assignee: Xiamen Jinruiqi Industry And Trade Co ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2021-11-16
Anticipated expiration: 2040-03-26
Also published as: CN111251662A

Abstract

The invention relates to an automatic oral feeding device for a paper bag machine, which relates to the technical field of paper bag machines and comprises a bracket, a plurality of storage mechanisms and a card taking mechanism, wherein the bracket is arranged on the paper bag machine, two ends of the bracket are respectively connected with the left side and the right side of the paper bag machine, the storage mechanisms are arranged on the bracket and are distributed along the width direction of the paper bag machine for placing strips, and the card taking mechanism is arranged on the paper bag machine for taking out the strips placed in the storage mechanisms one by one and placing the strips on the mouth of a paper bag conveyed by the paper bag machine; wherein, the one side slope that the bracket is close to paper bag machine feed end sets up downwards, places each discharge gate that stores the mechanism on the bracket and all sets up towards getting card mechanism. The invention has the effect of loading the clamping strip.

Description

Automatic oral feeding device for paper bag machine

Technical Field

The invention relates to the technical field of paper bag machines, in particular to an automatic oral feeding device for a paper bag machine.

Background

The welt, also known as preceding card, head card or card strip, be one kind and be used for portable container bag opening part to be used for increasing the hard card piece of portable container bag body and portable handle joint strength, the portable handle of portable container bag is connected in handbag sack department, in order to strengthen the portable handle of portable container bag and the joint strength of the handbag bag body, the card reinforcement is pasted to the sack of portable container bag generally, carry out the hem again, the card clamp that pastes is in the sack department of portable container bag, the portable handle just connects on the sack that has the subsides card. Card mechanism before the subsides of general portable paper bag machine in the existing market all adopts the tradition to place by hand or original cam pause type places, then passes through the gyro wheel compaction again, and not only inefficiency, intensity of labour is big, and manufacturing cost is high, often takes place the card moreover crooked with drop, for solving above-mentioned problem, current paper bag machine producer all can require on the paper bag machine of introduction new paper bag machine to add on the device of going up the strip of a mouthful in with the automation or oneself installs the device of going up the strip of a mouthful in the automation additional on current paper bag machine.

In the prior art, a card attaching device for a handbag machine disclosed in chinese patent No. CN208006354U includes: the paper sticking machine comprises a rack, a paper conveying mechanism, a sticking mechanism and a supporting frame; the paper conveying mechanism includes: the paper pressing roller is horizontally arranged on the conveying roller surface on the frame and is arranged above the front end of the conveying roller surface; paste card mechanism and be provided with two, suspend in conveying roller face top through the support frame, its characterized in that: the card sticking mechanism comprises: the device comprises a card frame, an installation plate, a feeding plate, a pressing plate, a first air cylinder and a second air cylinder; the card frame is fixed on the support frame through bolts at two sides, the lower end of the mounting plate protrudes out of the lower end of the card frame and is arranged on the back of the card frame, one side of the feeding plate is provided with a guide rail which is meshed with a guide rail groove arranged on the mounting plate and is arranged below the card frame, the first cylinder is arranged on one side of the card frame and is horizontally arranged on the mounting plate, the front end of the first cylinder is connected with the feeding plate, the second cylinder is arranged on the other side of the card frame and is vertically arranged on the mounting plate, and the front end of the second cylinder is connected with the pressing plate; the front part of the feeding plate is provided with a rectangular clamping groove which is communicated up and down, and a baffle plate with a smooth upper end surface is arranged from the clamping groove to the rear end; the clamp plate level sets up in card frame right side, and its lower terminal surface is a little higher than card frame lower extreme terminal surface setting.

Also, as disclosed in chinese patent No. CN207972352U, the present invention provides a hand bag opening attaching mechanism, which includes: the device comprises a support frame, a hexagonal middle shaft, three rotary joints, a rotor air suction disc, a stator air suction disc, a pressing wheel and a card frame; the support frame consists of two vertical plates and two cross rods for connecting the two vertical plates; the rotor air suction disc and the stator air suction disc are arranged between two vertical plates of the support frame through a hexagonal middle shaft, one end of the hexagonal middle shaft extends out of a vertical plate on the left side of the support frame to be connected with a power source, the other end of the hexagonal middle shaft extends out of a vertical plate on the right side of the support frame to be connected with three rotary joints, two groups of pinch rollers are arranged, are coaxial with the air suction discs and are respectively arranged on two sides of the rotor air suction disc and the stator air suction disc, and two card frames are arranged above the rotor air suction disc and the stator air suction disc through support rods; the air path of the hand bag opening sticking mechanism is composed of three paths of air, wherein two paths of air are used for sucking air, and one path of air is used for blowing air; the rotor air suction disc and the stator air suction disc are respectively composed of a locking block, three suction nozzle bases, suction nozzle inserts and three groups of suction nozzles, the locking block is sleeved on the hexagonal middle shaft, the three suction nozzle bases are equidistantly arranged along the outer peripheral side of the locking block, the suction nozzle inserts are arranged at the upper ends of the three suction nozzle bases, and the three groups of suction nozzles are respectively arranged on the suction nozzle bases through the suction nozzle inserts; the three-way rotary joint consists of a rotary joint stator and a rotary joint rotor; the rotary joint stator is communicated with the stator air suction disc, and the rotary joint rotor is communicated with the rotor air suction disc.

Still like the front card sticking mechanism of portable paper bag machine that chinese patent that application publication number is CN109986842A discloses, including conveying platform and card axle of inhaling, inhale the card axle and install in the frame, by servo motor through inhaling card axle drive wheel drive, inhale card axle one end and install the rotary joint that breathes in, the slip ring that blows is installed to the other end of inhaling the card axle, the centre of inhaling the card axle is equipped with the suction nozzle installation axle, install the suction nozzle on the suction nozzle installation axle and adjust the seat, install the suction nozzle on the suction nozzle regulation seat, the linear velocity of suction nozzle face department is the same with the linear velocity of conveying platform motion when the suction nozzle rotates along with inhaling the card axle.

However, the storage mechanism for storing the opening bars in the card pasting device (i.e. the card holder with the publication number CN208006354U and CN207972352U, or the front card placing component in the application publication number CN 109986842A) is fixed on the paper bag machine, and to ensure the processing efficiency, the paper bag machine is generally divided into a plurality of stations along the width thereof, especially in the case of a small paper bag width, the number of stations is more, and when the opening bars in the card pasting mechanism are used up, new opening bars need to be manually replenished, and the storage mechanism of the card pasting device located at the middle position of the paper bag machine is far away from the two sides of the paper bag machine, so that it is difficult for a worker to place the stacked card bars into the storage mechanism located at the middle position of the paper bag machine, and therefore, improvement is needed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an automatic oral feeding device for a paper bag machine, which is convenient for card strip feeding.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides an automatic oral device of going up for paper bag machine, includes that a plurality of sets up on paper bag machine in order to be used for storing the storage mechanism of openning and be used for taking out and pasting the openning intermittent type nature in the storage mechanism getting card mechanism in paper bag sack department, still including setting up on paper bag machine and both ends respectively with the bracket that the paper bag machine left and right sides is connected, the bracket is close to the slope of one side of paper bag machine feed end and sets up downwards, each storage mechanism all places on the bracket and the discharge gate orientation gets card mechanism setting.

Through adopting above-mentioned technical scheme, when new card strip needs to be placed, can directly take off storage mechanism from the bracket, then directly will stack together and the card strip in bulk is placed in storage mechanism by the staff, then place storage mechanism on the bracket again to push storage mechanism to appointed position so that get card mechanism and can take out the card strip intermittent type nature in the storage mechanism.

The present invention in a preferred example may be further configured to: store the mechanism and include two side shield that the symmetry of each other set up, two the downside of side shield all is provided with the bottom plate that is located one side that the side shield set up in opposite directions, two be provided with a plurality of even boards between the downside of side shield, two the lower surface of bottom plate is connected with each both ends of linking the board respectively, two enclose between the upper surface of closing formation mouth strip between the side that the side shield set up in opposite directions and the bottom plate and put the groove.

Through adopting above-mentioned technical scheme, can enclose through two side shield and set up in the bottom plate of two side shield downside and close the mouth strip that forms the side and the setting of lower extreme opening and put the groove, utilize even board can be connected two side shield together with the combination formation storage mechanism of buckling, simple structure, the implementation of being convenient for.

The present invention in a preferred example may be further configured to: each the downside of side shield all is provided with the regulating plate that is located the opposite one side that sets up of side shield, all is provided with a plurality of on each regulating plate and extends the setting and along the regulating groove that side shield length direction arranged along even board length direction, each even both ends of board are together fixed with the regulating plate through the mode of bolt locking, and the corresponding regulating groove is worn to establish by the bolt that sets up on even board.

Through adopting above-mentioned technical scheme, not only can realize the side shield and link the stable connection between the board through setting up each main way adjustment tank on the side shield and the bolt that is used for locking adjusting plate and connecting rod, and make the interval of constituteing between two link boards of storing the mechanism adjustable to reach the use of placing of adapting to different length openning, application range is wider.

The present invention in a preferred example may be further configured to: each store all be provided with on the mechanism and be used for preventing that the mouth strip is direct from putting the preceding baffle that groove lower extreme port directly dropped from the mouth strip, preceding baffle sets up in two on the side of the lower extreme of side shield and the opposite direction setting.

Through adopting above-mentioned technical scheme, can avoid placing in the lower extreme port that the groove was put to the mouth strip directly from the mouth strip directly unrestrained through the preceding baffle that sets up on the side shield, ensure the safe in utilization of mouth strip.

The present invention in a preferred example may be further configured to: the storage mechanism is internally provided with a pressing and clamping piece used for pressing the opening strip in the storage mechanism towards the lower end of the storage mechanism, and two ends of the pressing and clamping piece are connected to the upper sides of the two side baffles in a sliding mode respectively.

Through adopting above-mentioned technical scheme, slide through and be connected with the side shield and press the fastener with storing the lower extreme that the groove was put towards the openning to the openning of placing in the mechanism and compress tightly, ensure to get card mechanism and can put the openning contact of groove with being located the openning.

The present invention in a preferred example may be further configured to: the pressing and clamping piece comprises two pressing blocks which are connected with the upper sides of the two side baffles in a sliding mode, the upper ends of the pressing blocks are respectively provided with a sliding portion located on one side of the two pressing blocks, the sliding portion is arranged on the opposite side of the two pressing blocks, the lower surface of the sliding portion is provided with a sliding groove, and the upper sides of the side baffles stretch into the sliding grooves.

Through adopting above-mentioned technical scheme, make through the groove of sliding to set up the portion of sliding on the briquetting can establish with the upside card of side shield and slide and be connected to make the pressure fastener can ensure to compress tightly the normal use of the mouth strip of different length, confirm the pressure fastener.

The present invention in a preferred example may be further configured to: the bracket is formed by the combination of a plurality of supporting beams that set up along paper bag machine length direction, when storage mechanism places on the bracket, two the lower surface of side shield and the upper surface laminating of each supporting beam have one of them at least even a side overlap joint that the board set up towards the direction of paper bag machine feed end and down is in one of them a side overlap joint that the supporting beam kept away from the direction of paper bag machine feed end and set up.

Through adopting above-mentioned technical scheme, each supporting beam through constituteing the bracket can support the side shield that constitutes storage mechanism, and can support simultaneously and constitute the company's board that stores the mechanism for store the mechanism and place and can not slide downwards under the effect of gravity on the bracket.

The present invention in a preferred example may be further configured to: each supporting beam is provided with a plurality of magnets arranged along the length direction of the supporting beam, and each lower supporting plate is made of a magnetic metal material.

Through adopting above-mentioned technical scheme, can increase the joint strength between storage mechanism and the bracket through the cooperation that sets up magnet on a supporting beam and the side shield that is made by the metal material that has magnetism for storage mechanism is difficult because the paper bag machine vibration takes place the displacement, further ensures the safe handling of storage mechanism.

The present invention in a preferred example may be further configured to: and a scale mark is arranged on one of the support beams.

Through adopting above-mentioned technical scheme, the staff of being convenient for through the scale mark confirms the position of placing of storing the mechanism fast when placing and storing the mechanism, and the mechanism location of being convenient for store is placed.

The present invention in a preferred example may be further configured to: one of the support beam upper surface is provided with a groove arranged along the support beam length direction, and the scale mark is arranged in the groove.

Through adopting above-mentioned technical scheme, can play the effect of protection scale mark through the recess for the scale mark can not contact with the storage mechanism of placing on the bracket, thereby reaches the effect of avoiding storage mechanism wearing and tearing.

In summary, the invention includes at least one of the following beneficial technical effects:

the storage mechanism can be directly taken down from the paper bag machine, so that workers can conveniently place a large number of strips which are stacked together at one time, and the use safety of the storage mechanism is effectively ensured;

the storage mechanism can be suitable for placing and using the mouth strips with different lengths, and can ensure that the mouth strips with different lengths can stably bear the pressure towards the lower end of the storage mechanism and ensure that the mouth strips can be taken by the card taking mechanism;

simple structure, the implementation of being convenient for, and be convenient for maintain, can directly reform transform the use on current paper bag machine.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic structural diagram of a storage mechanism according to the present embodiment;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

FIG. 4 is a schematic structural view of the bracket of the present embodiment;

fig. 5 is a schematic structural diagram of the card-taking mechanism in the present embodiment.

Reference numerals: 1. a bracket; 11. a support beam; 111. a groove; 112. scale marks are marked; 12. a magnet; 2. a storage mechanism; 21. connecting plates; 22. a limiting member; 221. a flat plate; 222. a side dam; 223. a lower supporting plate; 224. an adjusting plate; 225. an adjustment groove; 226. a bolt; 23. a front baffle; 24. a strip placing groove; 25. pressing the clamping piece; 251. briquetting; 252. a sliding part; 253. a sliding groove; 3. a card taking mechanism; 31. a drive shaft; 32. mounting a disc; 33. installing a shaft; 34. a suction nozzle; 35. a suction rotary joint; 36. a suction nozzle adjusting seat; 37. an air blowing slip ring.

Detailed Description

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

Referring to fig. 1, the automatic oral feeding device for a paper bag machine disclosed by the invention comprises a bracket 1 which is arranged on the paper bag machine (not shown in the figure) and two ends of which are respectively connected with the left side and the right side of the paper bag machine, a plurality of storage mechanisms 2 which are arranged on the bracket 1 and are arranged along the width direction of the paper bag machine for placing oral strips, and a card taking mechanism 3 which is arranged on the paper bag machine for taking out the oral strips placed in the storage mechanisms 2 one by one and placing the oral strips on the mouth of the paper bag conveyed by the paper bag machine; wherein, bracket 1 is close to the downward setting of the one side slope of paper bag machine feed end, places each discharge gate that stores mechanism 2 on the bracket 1 and all sets up towards getting card mechanism 3.

Referring to fig. 1 and 2, each storage mechanism 2 includes a plurality of connecting plates 21 arranged in the same direction and parallel to each other, two limiting members 22 having a cross section in an inverted "T" shape, and a clamping member 25 slidably connected to the two limiting members 22, wherein two ends of each connecting plate 21 are connected to lower sides of the two limiting members 22, and the two limiting members 22 can form an opening strip placing groove 24 with openings at upper and two ends; wherein, the same end of the two limiting members 22 is provided with a front baffle 23 located on the opposite side of the two limiting members 22, when the storage mechanism 2 is placed on the bracket 1 in an inclined manner, the two front baffles 23 are located at the lower end of the storage mechanism 2 to prevent the opening bar from directly falling from the lower end of the front opening bar placing groove 24.

As shown in fig. 2, the limiting member 22 is formed by welding a flat plate 221 and a side baffle 222 perpendicular to the flat plate 221, the side baffle 222 is disposed along the length direction of the flat plate 221 and divides the flat plate 221 into a lower supporting plate 223 and an adjusting plate 224, when the connecting plate 21 and the limiting member 22 are combined to form the complete storage mechanism 2, two lower supporting plates 223 are respectively located on one side of the two side baffles 222 which are oppositely disposed, and two adjusting plates 224 are respectively located on one side of the two adjusting plates 224 which are oppositely disposed; wherein, two pieces of front baffle 23 are respectively formed by bending one end of two pieces of side baffle 222 by 90 degrees.

Wherein, each adjusting plate 224 is provided with a plurality of adjusting grooves 225 extending along the length direction of the connecting plate 21 and arranged along the length direction of the side baffle 222, two ends of each connecting plate 21 are respectively inserted with a bolt 226 having a bolt body penetrating through the corresponding adjusting groove 225, and the other end of each bolt 226 is connected with a nut by screw thread.

As shown in fig. 2 and fig. 3, the pressing member 25 includes two pressing blocks 251 slidably connected to the upper sides of the two side guards 222, the upper ends of the two pressing blocks 251 are provided with sliding portions 252, the two sliding portions 252 are respectively disposed on the opposite sides of the two pressing blocks 251, the lower surfaces of the two sliding portions 252 are provided with sliding grooves 253, and the upper sides of the two side guards 222 extend into the two sliding grooves 253 to realize the sister-clamping sliding connection relationship between the side guards 222 and the pressing blocks 251.

Referring to fig. 1 and 4, the bracket 1 is formed by combining a plurality of support beams 11 which are arranged along the length direction of the paper bag machine and have upper surfaces parallel to each other, and the upper surfaces of the support beams 11 are obliquely arranged along the length direction of the paper bag machine; when the storage mechanism 2 is placed on the bracket 1, the lower surfaces of the two side baffles 222 are attached to the upper surfaces of the support beams 11, and at least one side of the connecting plate 21 facing the feeding end of the paper bag machine and arranged downwards is lapped on one side of the support beam 11 facing away from the feeding end of the paper bag machine and arranged upwards.

Wherein, all be provided with a plurality of magnets 12 that arrange along a supporting beam 11 length direction on each supporting beam 11, each lower splint 223 all has the metal material that has magnetism to make storage mechanism 2 can be through the stable installation on bracket 1 of mode of magnetism.

Wherein, the upper surface of at least one of the supporting beams 11 is provided with two grooves 111 which are respectively positioned at the upper side and the lower side of the supporting beam 11 and are arranged along the length direction of the supporting beam 11, and each groove 111 is internally provided with a scale mark 112 for marking the actual position of the storage mechanism 2.

As shown in fig. 5, the card taking mechanism 3 includes a driving shaft 31 rotatably connected to the frame and provided with a cavity, two mounting disks 32 respectively provided at two ends of the driving shaft 31 and coaxial with the driving shaft 31, a mounting shaft 33 having two ends respectively fixed between the two mounting disks 32 and horizontally provided with the driving shaft 31, and a plurality of suction nozzles 34 fixed on the mounting shaft 33; the driving shaft 31 is installed on the paper bag machine and is synchronously driven by a servo motor (not shown in the figure) through a speed reducer, a goods belt pulley and other mechanisms (not shown in the figure), the driving shaft 31 is of a hollow structure, one end of the driving shaft 31 is provided with an air suction rotary joint 35, the other end of the driving shaft 31 is provided with an air blowing slip ring 37, a plurality of suction nozzle 34 adjusting seats communicated with the inside of the driving shaft 31 are installed on the installation shaft 33, each suction nozzle 34 is respectively installed on each suction nozzle 34 adjusting seat and communicated with the suction nozzle 34 adjusting seat, and the air suction rotary joint 35 and the air blowing slip ring 37 are communicated with the inner cavity of the taking-out shaft; when the suction nozzle 34 rotates along with the driving shaft 31 under the cooperative control of the whole machine electric control system, the linear velocity at the opening surface of the suction nozzle 34 is the same as the linear velocity of the movement of the paper bag machine, and the bag paper is conveyed on the paper bag machine.

After the paper bag is conveyed to the mouth pasting procedure, the mouth strips are sucked out of the mouth strip placing groove 24 through the suction nozzle 34, the mouth strips are adsorbed on the suction nozzle 34 and rotate along with the driving shaft 31, the mouth strips are pasted on the positions, needing to be pasted, of the paper bag, the paper bag pasted with the mouth strips is continuously conveyed to the subsequent procedure through the paper bag machine, and the paper bag is compacted and pasted firmly through the rear idler wheels.

The working principle is as follows:

after the use of the oral strip in storage mechanism 2 was accomplished, the staff can drag out each storage mechanism 2 from bracket 1 in proper order, then slows down storage mechanism 2 again the oral strip outside the paper bag machine, and it can to be finally placed storage mechanism 2 on bracket 1 and promote storage mechanism 2 to slide to appointed position once more by the staff.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides an automatic oral device that goes up for paper bag machine, includes that a plurality of sets up storage mechanism (2) and be used for taking out and paste card mechanism (3) of getting in paper bag sack department with the strip intermittence in storage mechanism (2) on the paper bag machine for storing the strip, its characterized in that: the card taking device is characterized by further comprising a bracket (1) which is arranged on the paper bag machine, two ends of the bracket (1) are respectively connected with the left side and the right side of the paper bag machine, one side of the bracket (1) close to the feeding end of the paper bag machine is obliquely and downwards arranged, each storage mechanism (2) is placed on the bracket (1), and a discharge hole is arranged towards the card taking mechanism (3);

wherein, the storage mechanism (2) comprises two side baffles (222) which are symmetrically arranged, the lower sides of the two side baffles (222) are respectively provided with a lower supporting plate (223) which is arranged on one side of the side baffles (222) which is oppositely arranged, a plurality of connecting plates (21) are arranged between the lower sides of the two side baffles (222), the lower surfaces of the two lower supporting plates (223) are respectively connected with the two ends of each connecting plate (21), one side surface of the two side baffles (222) which is oppositely arranged and the upper surface of the lower supporting plate (223) are enclosed to form a strip placing groove (24), the lower side of each side baffle (222) is respectively provided with an adjusting plate (224) which is arranged on the side of the side baffle (222) which is oppositely arranged, a plurality of adjusting grooves (225) which are arranged along the length direction of the connecting plates (21) and are arranged along the length direction of the side baffles (222) are arranged on each adjusting plate (224), two ends of each connecting plate (21) are fixed with the adjusting plate (224) together in a mode of locking bolts (226), the bolts (226) arranged on the connecting plates (21) penetrate through corresponding adjusting grooves (225), the bracket (1) is formed by combining a plurality of supporting beams (11) arranged along the length direction of the paper bag machine, when the storage mechanism (2) is placed on the bracket (1), the lower surfaces of the two side baffles (222) are attached to the upper surfaces of the support beams (11), at least one of the connecting plates (21) is in lap joint with one side surface, facing the direction of the feeding end of the paper bag machine and facing downwards, of the support beam (11) and one side surface, facing upwards, of the support beam (11) away from the direction of the feeding end of the paper bag machine, a plurality of magnets (12) are arranged on each support beam (11) along the length direction of the support beam (11), and each lower support plate (223) is made of a magnetic metal material.

2. An automatic oral feeding device for paper bag machine according to claim 1, characterized in that: each storage mechanism (2) is provided with a front baffle (23) for preventing the opening bars from directly falling from the lower end port of the opening bar placing groove (24), and the front baffles (23) are arranged at the lower ends of the two side baffles (222) and on one side face which is oppositely arranged.

3. An automatic oral feeding device for paper bag machine according to claim 1, characterized in that: the storage mechanism (2) is also internally provided with a clamping piece (25) used for pressing the opening strip in the storage mechanism (2) towards the lower end of the storage mechanism (2), and two ends of the clamping piece (25) are respectively connected to the upper sides of the two side baffles (222) in a sliding manner.

4. An automatic oral feeding device for paper bag machine according to claim 3, characterized in that: the pressing and clamping piece (25) comprises two pressing blocks (251) which are connected with the upper sides of the two side baffles (222) in a sliding mode, the upper ends of the two pressing blocks (251) are respectively provided with a sliding part (252) located on one side, opposite to the two pressing blocks (251), of the two pressing blocks, the lower surfaces of the sliding parts (252) are respectively provided with a sliding groove (253), and the upper sides of the side baffles (222) extend into the sliding grooves (253).

5. An automatic oral feeding device for paper bag machine according to claim 1, characterized in that: and a scale mark (112) is arranged on one support beam (11).

6. An automatic oral feeding device for paper bag machine according to claim 5, characterized in that: the upper surface of one of the support beams (11) is provided with a groove (111) arranged along the length direction of the support beam (11), and the scale marks (112) are arranged in the groove (111).