An anti-deviation mechanism on a bag-making machine

Abstract

The present application relates to the technical field of bag-making machines, and discloses an anti-deviation mechanism on a bag-making machine, which includes a frame. A conveying roller for conveying packaging bag materials is arranged on the frame. A guiding component is arranged on the frame. The guiding component includes two symmetrically arranged limiting sleeves sleeved on the conveying roller. A deviation rectifying component is arranged on the frame at a position between the two limiting sleeves. The deviation rectifying component is located directly below the conveying roller. The deviation rectifying component includes a plurality of blowing parts arranged along the length direction of the conveying roller. The blowing parts are rotatably connected to the frame and the rotation axis is perpendicular to the axis of the conveying roller. An air supply component communicated with the blowing parts is arranged on the frame. An adjusting component for adjusting the air outlets of the blowing parts is arranged on the frame. The present application has the effect of being easy to correct the deviated packaging bag materials, thereby improving the safety and reliability during the operation of the bag-making machine.

Description

Technical Field

[0001] This application relates to the technical field of bag-making machines, and particularly to an anti-deviation mechanism on a bag-making machine. Background Art

[0002] A bag-making machine is a machine for making ordinary packaging bags or medical packaging bags, and its processing range is packaging bags made of various plastics or other materials with different sizes, thicknesses and specifications. During the production process of the bag-making machine, it is necessary to transport the packaging materials required for bag-making. Most of the existing bag-making machines transport the packaging bag materials required for bag-making by means of belt transportation or transportation roller transportation.

[0003] However, in the process of implementing the related technical solutions, it is found that there are at least the following technical problems: when transporting the packaging bag materials, it is very easy to deviate, causing the edges and corners of the packaging bag materials to come into contact with the machine and be damaged by friction. In severe cases, the packaging bag materials are directly sucked into the equipment, jamming the transmission components of the equipment and causing equipment damage. Summary of the Invention

[0004] This application provides an anti-deviation mechanism on a bag-making machine, which solves the problem in the prior art that when transporting packaging bag materials, it is very easy to deviate, causing the edges and corners of the packaging bag materials to come into contact with the machine and be damaged by friction. In severe cases, the packaging bag materials are directly sucked into the equipment, jamming the transmission components of the equipment and causing equipment damage, and realizes that the packaging bag materials with deviation are easy to correct, thereby improving the safety and reliability of the bag-making machine during operation.

[0005] This application provides an anti-deviation mechanism on a bag-making machine, including a frame. A conveying roller for conveying packaging bag materials is arranged on the frame. A guiding component is arranged on the frame. The guiding component includes two symmetrically arranged limiting sleeves sleeved on the conveying roller. A deviation correction component is arranged on the frame at a position between the two limiting sleeves. The deviation correction component is located directly below the conveying roller. The deviation correction component includes a plurality of blowing parts arranged along the length direction of the conveying roller. The blowing parts are rotatably connected to the frame and the rotation axis is perpendicular to the axis of the conveying roller. An air supply component communicated with the blowing parts is arranged on the frame. An adjusting component for adjusting the air outlets of the blowing parts is arranged on the frame.

[0006] Further, the limiting sleeve is in sliding fit with the conveying roller. Fixed seats are arranged on the frame near both sides. The conveying roller is rotatably connected between the two fixed seats. A buffer member is connected between the limiting sleeve and the fixed seat.

[0007] Further, there are two buffer members symmetrically arranged about the axis of the conveying roller. The buffer member includes a first connecting plate disposed on the fixed seat, a second connecting plate disposed on one side of the limiting sleeve, two first buffer rods hinged to one side of the first connecting plate, and two second buffer rods hinged to one side of the second connecting plate. The two first buffer rods and the two second buffer rods correspond one by one, and the ends of the corresponding first buffer rod and second buffer rod are both hinged to a connecting block. A buffer spring is connected between the two connecting blocks.

[0008] Further, a sliding rod is disposed on one connecting block of the buffer member, and a fixed cylinder is disposed on the other connecting block. One end of the sliding rod is inserted into the fixed cylinder and is in sliding fit with the fixed cylinder. The two ends of the buffer spring are respectively connected to the end of the sliding rod and the inner end face of the fixed cylinder.

[0009] Further, a limit control component is disposed on the frame. The limit control component is arranged in one-to-one correspondence with the limiting sleeve. The limit control component includes a winding roller rotatably disposed on the side wall of the frame and a steel wire rope disposed on the winding roller. One end of the steel wire rope extends horizontally and is fixedly connected to the limiting sleeve. A positioning component for positioning the winding roller is disposed on the frame.

[0010] Further, a mounting seat is disposed on one side of the frame. The winding roller is rotatably connected to the mounting seat. The positioning component includes a ratchet wheel disposed on one side of the mounting seat and a fixed block disposed on the mounting seat and located below the ratchet wheel. The top of the fixed block is open and slidably connected with a positioning block. A positioning spring is connected between the positioning block and the inner bottom of the fixed block. The ratchet wheel is coaxially and fixedly connected to the winding roller. The upper end of the positioning block is formed with an inclined surface that slopes upward and toward the side close to the frame. The positioning block is inserted into the tooth groove of the ratchet wheel.

[0011] Further, the plurality of blowing parts are divided into two symmetric groups, and each group of blowing parts has a corresponding adjusting component.

[0012] Further, the air supply component includes an air box disposed on the frame and at the bottom of the conveying roller, an air supply pipe communicated with one side of the air box, and a blower communicated with one end of the air supply pipe. The blowing part includes a conduit disposed on the upper end surface of the air box and communicated with the air box, a disc box communicated with the upper end of the conduit, an inner box rotatably disposed in the disc box, and a nozzle disposed on the side wall of the inner box. The inner box is disc-shaped and is in rotational fit with the disc box. An arc-shaped through groove is formed in the top of the disc box. The nozzle is movably disposed in the through groove and extends out of the through groove. An air groove is formed in the arc-shaped side wall of the inner box. The opening of the air groove is larger than the opening of the conduit, and the air groove and the nozzle are symmetric about the center of the inner box.

[0013] Further, the adjustment assembly includes two adjustment seats spaced apart on the bellows, an adjustment screw rod rotatably arranged between the two adjustment seats, a movable seat threadedly connected to the adjustment screw rod, a vertical plate arranged on the upper end surface of the movable seat, and an adjustment motor arranged on one side of one adjustment seat. A plurality of movable seats are provided and correspond to the blowing parts one by one. Vertical holes are formed in the vertical plate. A guide post is arranged on one side of the nozzle, and the guide post is slidably arranged in the vertical holes. The movable seat is slidably matched with the upper end surface of the bellows, and the output shaft of the adjustment motor is fixedly connected to one end of the adjustment screw rod.

[0014] Further, a tension sensor is arranged at one end of the steel wire rope, and the tension sensor is fixedly connected to the limit sleeve.

[0015] The technical solutions provided in this application have at least the following technical effects or advantages:

[0016] 1. Due to the adoption of the deviation rectification assembly, by adjusting the blowing direction of the blowing part, the bottom of the packaging bag material is blown, and the wind force at an inclined angle can be used to conveniently adjust the position of the packaging bag material on the conveying roller, and it is not easy to cause damage to the packaging bag material. It effectively solves the problem that in the prior art, the packaging bag material is very easy to run off during transportation, causing the edges and corners of the packaging bag material to rub against the machine and be damaged, and in severe cases, the packaging bag material is directly sucked and wound into the equipment, jamming the transmission parts of the equipment and causing equipment damage. It realizes the packaging bag material that is easy to correct the deviation, and thus improves the safety and reliability of the bag making machine during operation.

[0017] 2. Due to the adoption of the adjustment assembly, the blowing direction of the blowing part can be adjusted, and the leftward adjustment, rightward adjustment, middle adjustment and two-side adjustment of the packaging bag material can be realized, greatly improving the functionality of deviation rectification, so that the packaging bag material can be stably transmitted during transportation and is not easy to run off.

[0018] 3. Due to the adoption of the limit control assembly, a certain margin of movement is allowed for the packaging bag material during transportation, and it is not easy to be squeezed and stacked together due to deviation, so that the packaging bag material can be kept as flat as possible. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram in the embodiment of this application;

[0020] Figure 2 is Figure 1 the enlarged schematic diagram at A in

[0021] Figure 3 is Figure 1 the enlarged schematic diagram at B in

[0022] Figure 4Schematic diagram of the positioning component in the embodiment of the present application;

[0023] Figure 5 Schematic diagram of the deviation correction component in the embodiment of the present application;

[0024] Figure 6 is Figure 5 Enlarged schematic diagram at position C in

[0025] In the figure: 1, frame; 11, conveying roller; 12, driving roller; 13, fixed seat; 2, packaging bag material; 3, guiding component; 31, limiting sleeve; 32, buffer member; 321, first connecting plate; 322, second connecting plate; 323, first buffer rod; 324, second buffer rod; 325, connecting block; 326, sliding rod; 327, fixed cylinder; 328, buffer spring; 4, deviation correction component; 41, blowing part; 411, conduit; 412, disc box; 413, inner box; 414, nozzle; 415, through groove; 416, air groove; 417, guiding column; 5, limiting control component; 51, winding roller; 52, steel wire rope; 53, mounting seat; 54, tension sensor; 6, positioning component; 61, ratchet; 62, fixed block; 63, positioning block; 64, positioning spring; 65, handle; 7, air supply component; 71, air box; 72, air supply pipe; 73, fan; 8, adjusting component; 81, adjusting seat; 82, adjusting screw rod; 83, movable seat; 84, vertical plate; 841, vertical hole; 85, adjusting motor. Detailed implementation manners

[0026] The embodiment of the present application discloses an anti-deviation mechanism on a bag making machine. By adjusting the blowing direction of the blowing part 41, the bottom of the packaging bag material 2 is blown. With the wind force at an inclined angle, it is convenient to adjust the position of the packaging bag material 2 on the conveying roller 11, and it is not easy to cause damage to the packaging bag material 2. It effectively solves the problem in the prior art that when transporting the packaging bag material 2, it is very easy to deviate, resulting in friction and breakage when the corners of the packaging bag material 2 contact the machine, and in severe cases, directly sucking and winding the packaging bag material 2 into the equipment, jamming the transmission components of the equipment and causing equipment damage. It realizes easy correction of the deviated packaging bag material 2, thereby improving the safety and reliability of the bag making machine during operation.

[0027] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the specification drawings and specific implementation manners.

[0028] Refer to Figure 1, A deviation prevention mechanism on a bag making machine, including a frame 1 located on one side of the bag making machine. A plurality of conveying rollers 11 are rotatably installed on the frame 1 at intervals, and the axes of the conveying rollers 11 are perpendicular to the length direction of the frame 1. Parallel drive rollers 12 are rotatably connected between two adjacent conveying rollers 11. The packaging bag material 2 is sequentially wound around the conveying rollers 11 and the drive rollers 12 and then transmitted into the bag making machine for processing. The packaging bag material 2 is wound around the lower surface of the conveying roller 11, then around the upper surface of the adjacent drive roller 12, and then around the lower surface of another conveying roller 11, and is thus sequentially transmitted into the interior of the bag making machine body. A guiding component 3 and a deviation rectifying component 4 are installed on the frame 1, which can preliminarily limit the packaging bag material 2 on the conveying roller 11. The deviation rectifying component 4 is located directly below the conveying roller 11, corresponding to the packaging bag material 2 in contact with the lower surface of the conveying roller 11, and the deviation rectifying component 4 is located at the middle position of the conveying roller 11.

[0029] Refer to Figure 1 , Figure 2 and Figure 3, the guiding assembly 3 includes two symmetrically arranged limiting sleeves 31 sleeved on the conveying roller 11. The limiting sleeves 31 are in sliding fit with the conveying roller 11. Fixed seats 13 are fixedly installed on the frame 1 near both sides. The conveying roller 11 is rotatably connected between the two fixed seats 13. A buffer member 32 is connected between the limiting sleeve 31 and the fixed seat 13. There are two buffer members 32 symmetrically arranged about the axis of the conveying roller 11. The buffer member 32 includes a first connecting plate 321, a second connecting plate 322, a first buffer rod 323, and a second buffer rod 324. The first connecting plate 321 is fixedly installed on one side of the fixed seat 13, and the second connecting plate 322 is fixedly installed on one side of the limiting sleeve 31, and the first connecting plate 321 and the second connecting plate 322 are arranged oppositely. One end of the first buffer rod 323 is hinged to one side of the first connecting plate 321, and one end of the second buffer rod 324 is hinged to one side of the second connecting plate 322. Two first buffer rods 323 are hinged on the first connecting plate 321, and two second buffer rods 324 are hinged on the second connecting plate 322. The two first buffer rods 323 located on the same first connecting plate 321 form a V shape, and the two second buffer rods 324 located on the same second connecting plate 322 form a V shape. The two first buffer rods 323 and the two second buffer rods 324 correspond one by one, and the ends of the corresponding first buffer rod 323 and second buffer rod 324 are both hinged to a connecting block 325. A sliding rod 326 is fixedly installed on one connecting block 325 on the buffer member 32, and a fixed cylinder 327 is fixedly installed on the other connecting block 325. The sliding rod 326 and the fixed cylinder 327 are both vertically arranged, and one end of the sliding rod 326 is inserted into the fixed cylinder 327 and is in sliding fit with the fixed cylinder 327. A buffer spring 328 is connected between the two connecting blocks 325. The two ends of the buffer spring 328 are respectively connected to the end of the sliding rod 326 and the inner end face of the fixed cylinder 327. Between the two groups of buffer members 32 connected to the same limiting sleeve 31, the two first connecting blocks 325 are fixed by a connecting shaft, so that the limiting sleeve 31 can stably buffer and slide horizontally.

[0030] Refer to Figure 1 , Figure 3 and Figure 4, a limit control component 5 is installed on the frame 1, and the limit control components 5 are arranged in one-to-one correspondence with the limit sleeves 31. The limit control component 5 includes a winding roller 51 and a steel wire rope 52. A mounting seat 53 is fixedly installed on one side of the frame 1. The winding roller 51 is rotatably connected to the mounting seat 53, and the axis of the winding roller 51 is consistent with the length direction of the frame 1. One end of the steel wire rope 52 is fixed with a tension sensor 54, and the tension sensor 54 is fixedly connected to the limit sleeve 31. A positioning component 6 for restricting the rotation of the winding roller 51 is installed on the frame 1. One end of the steel wire rope 52 extends horizontally and is fixedly connected to the positioning component 6. The positioning component 6 includes a ratchet wheel 61 and a fixed block 62. The ratchet wheel 61 is rotatably installed on one side of the mounting seat 53 and is coaxially arranged with the winding roller 51. One end of the ratchet wheel 61 is fixedly connected to one end of the winding roller 51. The fixed block 62 is fixedly installed on one side of the mounting seat 53 and corresponds to the lower part of the ratchet wheel 61. The fixed block 62 is of a hollow structure. The top of the fixed block 62 is open and slidably connected with a positioning block 63. A positioning spring 64 is fixedly connected between the positioning block 63 and the inner bottom of the fixed block 62. The upper end of the positioning block 63 is formed with an inclined surface, and the inclined surface inclines towards the side close to the frame 1 from bottom to top. The positioning block 63 is inserted into the tooth groove of the ratchet wheel 61. A handle 65 is rotatably connected to the other side of the mounting seat 53, and the handle 65 is fixedly connected to the other end of the winding roller 51. By rotating the handle 65, the steel wire rope 52 can be tightened or loosened, and thus the position of the limit sleeve 31 can be conveniently adjusted according to the width of the packaging bag material 2. Due to the setting of the ratchet wheel 61, the winding roller 51 is not easily rotated.

[0031] Refer to Figure 1 , Figure 5 , Figure 6, the deviation rectifying assembly 4 is located between the two limit sleeves 31. The deviation rectifying assembly 4 includes a plurality of blowing parts 41 arranged along the length direction of the conveying roller 11. The blowing parts 41 are rotatably connected to the frame 1 and the rotation axis is perpendicular to the axis of the conveying roller 11. A wind supply assembly 7 communicated with the blowing parts 41 is installed on the frame 1, and an adjusting assembly 8 for adjusting the air outlets of the blowing parts 41 is installed on the frame 1. The blowing part 41 includes a conduit 411, a disc box 412, an inner box 413, and a nozzle 414. The conduit 411 is vertically arranged and communicated with the wind supply assembly 7. The disc box 412 is fixedly installed at the upper end of the conduit 411 and is communicated with the inside of the conduit 411. The inner box 413 is in the shape of a hollow disc and is inserted into the disc box 412 and rotatably cooperates with the disc box 412. The inner box 413 and the disc box 412 are coaxial, and an arc-shaped through groove 415 is opened at the top of the disc box 412. One end of the nozzle 414 is fixedly connected to the arc-shaped side wall of the inner box 413 and is communicated with the inside of the inner box 413. The nozzle 414 is movably arranged in the through groove 415 and extends out of the through groove 415. Wind grooves 416 are opened on the arc-shaped side wall of the inner box 413. The opening of the wind groove 416 is larger than the opening of the conduit 411, and the wind groove 416 and the nozzle 414 are centrosymmetric about the center of the inner box 413. The adjusting assembly 8 is connected to the nozzle 414 and can drive the inner box 413 to rotate. The arc length of the through groove 415 is the movement range of the nozzle 414, so that the nozzle 414 can deflect 60° to the left or right with the center line of the conduit 411 as the center. The plurality of blowing parts 41 are arranged at intervals along the width direction of the frame 1. The plurality of blowing parts 41 are divided into two symmetric groups. The two groups of blowing parts 41 are centrosymmetric about the center of the width direction of the frame 1. Each group of blowing parts 41 has a corresponding adjusting assembly 8.

[0032] Refer to Figure 1 , Figure 5 , Figure 6 , the wind supply assembly 7 includes a wind box 71, a wind supply pipe 72, and a fan 73. The wind box 71 is fixedly installed on the frame 1, and the wind box 71 is located below the conveying roller 11. The wind box 71 is parallel to the conveying roller 11. A wind box 71 is arranged below each conveying roller 11. One end of the wind supply pipe 72 is communicated with the wind box 71. A fan 73 is fixedly installed on one side of the frame 1. The other side of the wind supply pipe 72 is communicated with the air outlet of the fan 73. The adjacent wind boxes 71 are communicated through pipes, and the interiors of multiple wind boxes 71 can be communicated simultaneously. The lower end of the conduit 411 of the blowing part 41 is fixedly installed on the upper end surface of the wind box 71 and is communicated with the inside of the wind box 71. When the nozzle 414 of the blowing part 41 is vertically upward, it is spaced from the lower surface of the conveying roller 11.

[0033] Refer to Figure 1 , Figure 5 , Figure 6, the adjusting assembly 8 includes an adjusting base 81, an adjusting screw rod 82, a movable seat 83, a vertical plate 84, and an adjusting motor 85. Two adjusting assemblies 8 are symmetrically arranged about the center in the width direction of the frame 1. Each adjusting assembly 8 has two adjusting bases 81, and the adjusting bases 81 of the two adjusting assemblies 8 that are closer to the middle of the frame 1 are closer to each other. The adjusting base 81 is fixedly installed on the air box 71, and the two adjusting bases 81 in each adjusting assembly 8 are arranged at intervals. An adjusting screw rod is rotatably connected between two opposite adjusting bases 81, and a guide rod is fixed between two opposite adjusting bases 81. The adjusting screw rod and the guide rod are parallel to each other. The adjusting screw rod and the guide rod both pass through the movable seat 83. The movable seat 83 is threadedly connected to the adjusting screw rod, and the movable seat 83 is slidably matched with the guide rod. There are multiple movable seats 83 between two opposite adjusting bases 81, and the movable seats 83 correspond to the blowing parts 41 one by one. The lower end of the vertical plate 84 is fixedly installed on the upper end surface of the movable seat 83, and a vertical hole 841 is formed in the vertical plate 84. One side of the nozzle 414 is fixed with a horizontal guide post 417, and the guide post 417 is slidably arranged in the vertical hole 841. The movable seat 83 is slidably matched with the upper end surface of the air box 71. The adjusting motor 85 is fixedly installed on the upper end surface of the air box 71, and the output shaft of the adjusting motor 85 is fixed to one end of the adjusting screw rod. By driving the adjusting screw rod to rotate through the adjusting motor 85, the movable seat 83 can be driven to slide along the width direction of the frame 1, so that the inner box 413 rotates, and the blowing direction of the nozzle 414 is adjusted.

[0034] The working principle of the embodiment of the present application is as follows: When the packaging bag material 2 runs off to the left along the axial direction of the conveying roller 11, the extrusion limiting sleeve 31 is squeezed, so that the limiting sleeve 31 slides to the left. The tension sensor 54 senses that the steel wire rope 52 connecting the limiting sleeve 31 will become loose, and sends a signal, so that the adjusting assembly 8 adjusts the turning direction of the blowing part 41, turns to the right, provides a rightward wind force for the packaging bag material 2, and corrects the position of the packaging bag material 2. When the packaging bag material 2 runs off to the right along the axial direction of the conveying roller 11, the angle of the blowing part 41 is adjusted to provide a leftward wind force. Until the steel wire ropes 52 on the two limiting sleeves 31 are in a normal state, neither loose nor tight.

[0035] When the packaging bag materials 2 gather towards the center and are squeezed, the two groups of blowing parts 41 can be adjusted to rotate in opposite directions, providing two opposite wind forces, so that the packaging bag materials 2 can be restored to flatness.

[0036] When the packaging bag material 2 is in a normal conveying state during the conveying process, the nozzle 414 can be adjusted so that the air outlet of the nozzle 414 is vertically upward, so that the packaging bag material 2 can always be attached to the lower surface of the conveying roller 11, and it is not easy to run off.

[0037] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, provided that these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to cover these modifications and variations.

[0038] The above are only the preferred specific implementation manners of the embodiments of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application, according to the technical solution and its concept of this application, makes equivalent substitutions or changes, and should be covered within the protection scope of this application.

Claims

1. An anti-deviation mechanism on a bag-making machine, comprising a frame (1), wherein a conveying roller (11) for conveying packaging bag materials (2) is arranged on the frame (1), and it is characterized in that, A guiding component (3) is arranged on the frame (1). The guiding component (3) includes two limiting sleeves (31) which are sleeved on the conveying roller (11) and are symmetrical. A deviation rectifying component (4) is arranged on the frame (1) at a position between the two limiting sleeves (31). The deviation rectifying component (4) is located directly below the conveying roller (11). The deviation rectifying component (4) includes a plurality of blowing parts (41) arranged along the length direction of the conveying roller (11). The blowing parts (41) are rotatably connected to the frame (1), and the rotation axis is perpendicular to the axis of the conveying roller (11). A wind supply component (7) communicated with the blowing part (41) is arranged on the frame (1). The wind supply component (7) includes an air box (71) arranged on the frame (1) and located at the bottom of the conveying roller (11), an air supply pipe (72) communicated with one side of the air box (71), and a fan (73) communicated with one end of the air supply pipe (72). The blowing part (41) includes a conduit (411) arranged on the upper end surface of the air box (71) and communicated with the air box (71), a disc box (412) communicated with the upper end of the conduit (411), an inner box (413) rotatably arranged in the disc box (412), and a nozzle (414) arranged on the side wall of the inner box (413). The inner box (413) is disc-shaped and is rotationally matched with the disc box (412). An arc-shaped through groove (415) is formed at the top of the disc box (412). The nozzle (414) is movably arranged in the through groove (415) and extends out of the through groove (415). An air groove (416) is formed on the arc-shaped side wall of the inner box (413). The opening of the air groove (416) is larger than the opening of the conduit (411), and the air groove (416) and the nozzle (414) are centrosymmetric about the center of the inner box (413). An adjusting component (8) for adjusting the air outlet of the blowing part (41) is arranged on the frame (1). The adjusting component (8) includes two adjusting seats (81) arranged at intervals on the air box (71), an adjusting screw rod (82) rotatably arranged between the two adjusting seats (81), a movable seat (83) threadedly connected to the adjusting screw rod (82), a vertical plate (84) arranged on the upper end surface of the movable seat (83), and an adjusting motor (85) arranged on one side of one adjusting seat (81). A plurality of movable seats (83) are provided and correspond to the blowing parts (41) one by one. A vertical hole (841) is formed in the vertical plate (84). A guiding column (417) is arranged on one side of the nozzle (414). The guiding column (417) is slidably arranged in the vertical hole (841). The movable seat (83) is slidably matched with the upper end surface of the air box (71). The output shaft of the adjusting motor (85) is fixed to one end of the adjusting screw rod (82).

2. The anti-deviation mechanism on a bag-making machine according to claim 1, characterized in that, The limiting sleeve (31) is slidably matched with the conveying roller (11). Fixed seats (13) are arranged on the frame (1) near both sides. The conveying roller (11) is rotatably connected between the two fixed seats (13). A buffer member (32) is connected between the limiting sleeve (31) and the fixed seat (13).

3. The anti-deviation mechanism on a bag-making machine according to claim 2, characterized in that, There are two of the buffer members (32) symmetrically arranged about the axis of the conveying roller (11). The buffer members (32) include a first connecting plate (321) arranged on the fixed seat (13), a second connecting plate (322) arranged on one side of the limiting sleeve (31), two first buffer rods (323) hinged to one side of the first connecting plate (321), and two second buffer rods (324) hinged to one side of the second connecting plate (322). The two first buffer rods (323) and the two second buffer rods (324) correspond one by one, and the ends of the corresponding first buffer rod (323) and second buffer rod (324) are both hinged to a connecting block (325). A buffer spring (328) is connected between the two connecting blocks (325).

4. The anti-deviation mechanism on a bag-making machine according to claim 3, characterized in that, A sliding rod (326) is arranged on one of the connecting blocks (325) on the buffer member (32), and a fixed cylinder (327) is arranged on the other connecting block (325). One end of the sliding rod (326) is inserted into the fixed cylinder (327) and is in sliding fit with the fixed cylinder (327). The two ends of the buffer spring (328) are respectively connected to the end of the sliding rod (326) and the inner end face of the fixed cylinder (327).

5. The anti-deviation mechanism on a bag-making machine according to claim 1, characterized in that, A limit control assembly (5) is arranged on the frame (1). The limit control assemblies (5) are arranged in one-to-one correspondence with the limiting sleeves (31). The limit control assembly (5) includes a wire winding roller (51) rotatably arranged on the side wall of the frame (1), and a steel wire rope (52) arranged on the wire winding roller (51). One end of the steel wire rope (52) extends horizontally and is fixedly connected to the limiting sleeve (31). A positioning assembly (6) for positioning the wire winding roller (51) is arranged on the frame (1).

6. The anti-deviation mechanism on a bag-making machine according to claim 5, characterized in that, An installation seat (53) is arranged on one side of the frame (1). The wire winding roller (51) is rotatably connected to the installation seat (53). The positioning assembly (6) includes a ratchet wheel (61) arranged on one side of the installation seat (53), and a fixed block (62) arranged on the installation seat (53) and located below the ratchet wheel (61). The top of the fixed block (62) is open and slidably connected with a positioning block (63). A positioning spring (64) is connected between the positioning block (63) and the inner bottom of the fixed block (62). The ratchet wheel (61) is coaxially and fixedly connected with the wire winding roller (51). The upper end of the positioning block (63) is formed with an inclined surface, and the inclined surface inclines towards the side close to the frame (1) from bottom to top. The positioning block (63) is inserted into the tooth groove of the ratchet wheel (61).

7. The anti-deviation mechanism on a bag-making machine according to claim 1, characterized in that The multiple blowing parts (41) are divided into two symmetric groups, and each group of blowing parts (41) has a corresponding adjusting assembly (8).

8. The anti-deviation mechanism on a bag-making machine according to claim 5, characterized in that, A tension sensor (54) is arranged at one end of the steel wire rope (52), and the tension sensor (54) is fixedly connected to the limiting sleeve (31).

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