Cavel rotation adjusting and positioning mechanism of valve bag machine

Abstract

The utility model discloses a cavel rotation adjusting and positioning mechanism of a valve bag machine, which comprises a frame, a transmission gear and shifting tubes, the two shifting tubes are detachably mounted on a mounting seat to form a cavel, the upper end and the lower end of the transmission gear are respectively connected with a cross shaft, the two cross shafts are respectively connected with a flange middle shaft, and the flange middle shaft is connected with a flange. Rotatable rotating seats are arranged on the upper end face and the lower end face of the transmission box respectively, slope faces are arranged on the rotating seats, the end of the flange center shaft penetrates out of the slope faces and then is connected with a claw, the two rotating seats are connected through a connecting rod, an adjusting block is connected to a screw on the rack in a screwed mode, a limiting plate is arranged corresponding to the adjusting block, and an arc-shaped limiting groove is formed in the limiting plate. The upper end of the adjusting block is connected with a connecting rod, the connecting rod is in transmission connection with the connecting rod through a pull rod, and the connecting rod is connected with the outer wall of the transmission box through a limiting plate. Therefore, the initial position of the claw device can be quickly and accurately adjusted to adapt to different bottom widths of the paper bags according to the bottom opening sizes of different paper bags.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper bag processing equipment technical field especially relates to a kind of goat horn rotation adjustment and positioning mechanism on valve port bag paste bottom machine, it can be according to the bottom width demand of different paper bag, the initial position of quick, accurate adjustment of poking tube is regulated, to improve equipment adaptability and production efficiency. BACKGROUND

[0002] In paper bag paste bottom process, the bottom opening of valve port bag needs to be opened by poking tube and other execution components. In the traditional technology, poking tube is usually fixedly installed, and its initial position is not adjustable, or only can be adjusted by complicated manual adjustment to adapt to the bottom width of different specifications of paper bag. In the prior art, a paper bag opening bottom device is disclosed in Chinese patent for invention authorized publication No.CN105904774A, which sets the angle and position of poking tube through a series of connecting rods, guide rails and adjusting mechanisms, but its adjustment process relies on a large number of manual operations, and the adjustment accuracy is low and the response is slow. When different paper bag specifications are switched, the operation is extremely inconvenient, which seriously affects the production efficiency. Therefore, a goat horn poking tube adjusting and positioning mechanism with simple structure, convenient adjustment and reliable positioning is needed to meet the automatic production needs of paper bags with different bottom widths. SUMMARY

[0003] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a goat horn rotation adjustment and positioning mechanism of valve port bag machine, which can quickly and accurately adjust the initial position of poking tube on the goat horn according to the different bottom width of paper bag, so as to improve the adaptability of the equipment to paper bags with different specifications, simplify the operation process and improve the production efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a goat horn rotation adjustment and positioning mechanism of valve port bag machine, comprising:

[0005] A rack;

[0006] A transmission gear is arranged in a transmission box;

[0007] Two poking tubes are detachably mounted on a mounting seat to form a goat horn;

[0008] Two cross shafts are connected to the upper and lower ends of the transmission gear respectively;

[0009] Two flange shafts are connected to the two cross shafts respectively for transmitting rotation;

[0010] Two rotating seats are rotatably arranged on the upper and lower end faces of the transmission box respectively, each rotating seat is provided with an inclined surface, and the end of the flange shaft passes through the inclined surface and is connected with the goat horn;

[0011] A connecting rod is connected between the two rotating seats.

[0012] A screw rod is horizontally rotatably mounted on the frame;

[0013] An adjusting block is screwed on the screw rod;

[0014] A limiting plate is arranged corresponding to the adjusting block, and an arc-shaped limiting slot is formed in the limiting plate, and a plug rod is arranged at the lower end of the adjusting block and inserted into the limiting slot and movable along the slot;

[0015] A connecting rod is connected to the upper end of the adjusting block;

[0016] A pull rod is connected between the connecting rod and the connecting rod, and is used for transmitting the movement of the adjusting block to the connecting rod;

[0017] A limiting plate is connected between the connecting rod and the outer wall of the transmission box, and is used for limiting the movement track of the adjusting block;

[0018] Wherein, the adjusting block is moved along the arc-shaped path of the limiting slot by rotating the screw rod, so as to drive the connecting rod and the rotating seat to rotate through the connecting rod and the pull rod, and the pipe stirring rod on the horn is further rotated by the rotating seat, so that the initial position of the pipe stirring rod is adjusted.

[0019] Further, a stepping motor is arranged on the frame, a small gear is connected to the output shaft of the stepping motor, and an end portion of the screw rod is connected with a large gear, the large gear is engaged with the small gear for transmission, so that the screw rod is driven to rotate by the stepping motor, and the automation and accurate control of the adjusting process are realized.

[0020] Further, the utility model also includes a locking positioning mechanism, the locking positioning mechanism includes:

[0021] A locking cylinder is connected to the rotating seat at the tail portion;

[0022] A locking block is rotatably mounted between the two rotating seats, and the locking block is an eccentric sleeve which can be rotated under the driving of the locking cylinder;

[0023] A rotating rod is connected between the two rotating seats, and the locking block is mounted on the rotating rod;

[0024] A rotating plate is connected to the rotating rod, and the end portion of the rotating plate is connected with the piston rod of the locking cylinder;

[0025] When the position of the horn needs to be adjusted, the locking cylinder drives the locking block to rotate to the non-compression state, so that the rotating seat can be freely rotated; after the adjustment is completed, the locking cylinder reversely drives the locking block to rotate to the eccentric compression position, so that the locking block is in contact with the outer wall of the transmission box and generates a friction force, thereby locking the position of the rotating seat and the horn.

[0026] The utility model has the advantages of:

[0027] 1. Through the linkage design of screw rod, adjusting block, connecting rod, pull rod and rotating seat, the initial position of the pipe is quickly and accurately adjusted;

[0028] 2. The screw rod is driven by a stepping motor, thereby improving the automation degree and control precision of the adjusting process;

[0029] 3. The locking and positioning mechanism is arranged, so that the rotating seat is reliably locked after the adjustment is completed, the position of the horn is stabilized, and deviation during operation is avoided;

[0030] 4. The overall structure is compact and easy to operate, can adapt to the quick switching demand of different bottom width paper bags, and significantly improves the production efficiency and equipment versatility.

[0031] The utility model will be further described below in combination with the drawings and specific embodiments. DRAWINGS

[0032] Figure 1 is the sectional view of the specific embodiment of the utility model Figure 1 .

[0033] Figure 2 is the sectional view of the specific embodiment of the utility model

[0034] Figure 3 is the sectional view of the specific embodiment of the utility model Figure 2 .

[0035] Marked in the figure: 1, rack; 2, transmission gear; 3, horn; 31, pipe; 32, mounting seat; 4, cross shaft; 5, flange shaft; 6, transmission box; 7, rotating seat; 8, connecting rod; 9, screw rod; 10, adjusting block; 20, limiting plate; 201, limiting groove; 30, pull rod; 40, connecting rod; 50, limiting plate; 60, stepping motor; 601, pinion; 602, gear; 70, locking and positioning mechanism; 701, locking cylinder; 702, locking block; 703, rotating rod; 704, rotating plate; SPECIFIC EMBODIMENT

[0036] The utility model will be further described below in combination with the drawings and specific embodiments. Only for further illustrating the utility model, it cannot be understood as limiting the protection scope of the utility model.

[0037] As shown in Figure 1 — Figure 3 The embodiment discloses a horn rotating adjusting and positioning mechanism of valve bag machine, which is mainly used for adjusting the initial position of horn device on valve bag bottoming machine, so as to adapt to the opening bottom demand of different bottom width paper bags. The mechanism mainly includes the following components: I. overall structure layout

[0038] The mechanism comprises a rack 1, a transmission gear 2, two push pipes 31, a mounting seat 32, two cross shafts 4, two flange shafts 5, a transmission box 6, two rotating seats 7, a connecting rod 8, a screw rod 9, an adjusting block 10, a limiting plate 20, a connecting rod 40, a pull rod 30, a limiting plate 50, a stepping motor 60, a locking positioning mechanism 70 and the like.

[0039] The transmission gear 2 is arranged in the transmission box 6 and is used for transmitting power. The two push pipes 31 are detachably arranged on the mounting seat 32 and jointly form a horn 3. Specifically, the push pipes 31 are inserted into the telescopic holes of the mounting seat 32 and are locked and fixed by bolts. The detachable structure facilitates replacement of the push pipes 31 with different lengths or angles according to different paper bag specifications, thereby improving the universality of the equipment. The upper and lower ends of the transmission gear 2 are fixedly connected with two cross shafts 4 respectively, and the other ends of the cross shafts 4 are connected with flange shafts 5 respectively. The end portions of the flange shafts 5 pass through the inclined surfaces of the rotating seats 7 arranged on the upper and lower end faces of the transmission box 6 correspondingly and are connected with the horn 3 (i.e. the push pipes 31), so as to transmit the rotating motion to the push pipes 31. The two rotating seats 7 are rotatably arranged on the upper and lower end faces of the transmission box 6 and are provided with inclined surface structures for guiding and supporting the movement or positioning of the flange shafts 5. The two rotating seats 7 are connected with each other by a connecting rod 8 to ensure synchronous rotation of the two rotating seats 7.

[0040] II. Adjusting mechanism

[0041] On the rack 1, a screw rod 9 is arranged and can rotate horizontally and circumferentially, and the axis of the screw rod 9 is parallel to the adjusting direction of the push pipes 31. An adjusting block 10 is screwed on the screw rod 9 and can move along the axial direction of the screw rod 9. Corresponding to the adjusting block 10, a limiting plate 20 is arranged, and an arc-shaped limiting groove 201 is formed in the limiting plate 20. The lower end of the adjusting block 10 is provided with a plug rod which is inserted into the limiting groove 201 and can move along the arc-shaped groove, so as to limit the adjusting block 10 to move along the predetermined arc-shaped track only, thereby ensuring stable and controllable adjusting process.

[0042] The upper end of the adjusting block 10 is connected with a connecting rod 40, and the other end of the connecting rod 40 is connected with the connecting rod 8 through a pull rod 30. A limiting plate 50 is further connected between the connecting rod 40 and the outer wall of the transmission box 6, and the limiting plate 50 is used for limiting the movement direction of the connecting rod 40, so as to ensure that the adjusting block 10 can accurately drive the connecting rod 8 and the rotating seat 7 to rotate when moving along the arc-shaped groove 201.

[0043] III. Driving mechanism

[0044] In order to realize the automation and high-precision control of the adjusting process, a stepping motor 60 is arranged on the rack 1, a small gear 601 is connected to the output shaft of the stepping motor 60, and a large gear 602 connected to the end of the screw rod 9 is engaged with the small gear 601. In the embodiment, the number of teeth of the large gear 602 is twice that of the small gear 601, so that one-stage speed reduction transmission is realized, and the rotation of the screw rod 9 is more stable and accurate. As an optional solution, the screw rod 9 can also be driven by a manual rocker arm mode to adapt to different use scenarios. Further, a rotatable motor base (not labeled in the figure) is arranged on the rack 1, and the stepping motor 60 is installed on the motor base, so that the screw rod 9 and the motor base can rotate horizontally together, and the transmission connection between the motor shaft and the screw rod 9 is realized through the above-mentioned gear pair. One end of the pull rod 30 is sleeved on the connecting rod 8, and the other end is sleeved on the connecting rod 40 on the adjusting block 10. When the adjusting block 10 moves along the arc-shaped groove 201, the connecting rod 8 and the rotating seat 7 are driven to rotate through the linkage of the connecting rod 40 and the pull rod 30, so that the adjustment of the initial position of the pipe 31 is realized.

[0045] Four, locking positioning mechanism

[0046] In order to ensure the stability of the position of the sheep horn 3 after adjustment, the embodiment further comprises a locking positioning mechanism 70 for locking the rotating seat 7 after adjustment is completed to prevent it from deviating during work. The locking positioning mechanism 70 comprises a locking cylinder 701, a locking block 702, a rotating rod 703 and a rotating plate 704. The locking block 702 is rotatably installed between the two rotating seats 7 and is an eccentric sleeve structure. The tail of the locking cylinder 701 is connected to the rotating seat 7, the piston rod thereof is connected to the end of a rotating plate 704, the rotating plate 704 is connected to a rotating rod 703, and the locking block 702 is also installed on the rotating rod 703. When it is necessary to adjust the position of the sheep horn 3, the locking cylinder 701 drives the rotating plate 704 to rotate the locking block 702 to a non-compression state (for example, the eccentric part is away from the outer wall of the transmission box 6), at this time the rotating seat 7 can rotate freely, and the adjusting block 10 can drive the rotating seat 7 and the pipe 31 to move to the target position along the limiting groove 201. After adjustment is completed, the locking cylinder 701 is reversely actuated to drive the locking block 702 to rotate to an eccentric compression state, so that the outer edge thereof is in close contact with the outer wall of the transmission box 6 and generates sufficient friction force, thereby locking the rotating seat 7, fixing the position of the sheep horn 3 and the pipe 31, and ensuring that the position will not deviate due to vibration or external force in the subsequent work process.

[0047] Five, working process and technical effects

[0048] In summary, the initial position of the pipe 31 of the sheep horn 3 is adjusted and positioned by the following methods:

[0049] 1. Unlocking stage: the locking cylinder 701 drives the locking block 702 to rotate, so that it is separated from the outer wall of the transmission box 6, and the rotating seat 7 is in a rotatable state;

[0050] Adjusting stage: the stepping motor 60 is started, the screw rod 9 is driven to rotate through the gear pair, and the adjusting block 10 is moved along the arc-shaped limiting groove 201 on the limiting plate 20; the adjusting block 10 drives the connecting rod 8 and the rotating seat 7 to rotate through the connecting rod 40 and the pull rod 30, the rotating seat 7 further drives the flange shaft 5 and the pipe shifting rod 31 on the horn 3 to rotate, so that the initial position of the pipe shifting rod 31 is changed;

[0051] 2. Locking stage: after the adjustment is completed, the locking cylinder 701 is reversely operated to drive the locking block 702 to rotate to the state of pressing the outer wall of the transmission box 6, so that the friction force is generated, the rotating seat 7 is locked, and the position of the pipe shifting rod 31 is fixed;

[0052] 3. Replacement of the pipe shifting rod (optional): if it is required to adapt to paper bags with different bottom widths, the pipe shifting rod 31 with a corresponding length or angle can be replaced, and the above process is re-adjusted and locked.

[0053] Through the above structure, the quick, accurate and automatic adjustment and reliable positioning of the initial position of the pipe shifting rod are realized, the problems of inconvenient manual adjustment, low efficiency and poor adaptability in the traditional technology are solved, and the compatibility and production continuity of the valve bag bottom pasting machine for different specifications of paper bags are significantly improved.

Claims

1. A sheep horn rotation adjustment and positioning mechanism for a valve port bag machine, characterized by, The utility model relates to a kind of adjustable shearing machine, including: Rack (1); Transmission gear (2), it is set in a transmission box (6); Two dials (31), the two dials are detachably mounted on a mounting seat (32), and together constitute a horn (3); Two cross shafts (4) are connected to the upper and lower ends of the transmission gear (2) respectively; Two flange shafts (5) are connected to the two cross shafts (4) respectively; Two rotating seats (7) are rotatably arranged on the upper and lower end faces of the transmission box (6) respectively, and each rotating seat (7) is provided with an inclined surface, and the end of the flange shaft (5) passes through the inclined surface and is connected with the horn (3); Connecting rod (8) is connected between the two rotating seats (7); Screw rod (9) is horizontally rotatably mounted on the rack (1); Adjusting block (10) is screwed on the screw rod (9); Limiting plate (20) is arranged corresponding to the adjusting block (10), and an arc-shaped limiting slot (201) is formed in the limiting plate (20), and the lower end of the adjusting block (10) is provided with a plug rod, which is inserted into the limiting slot (201) and can move along the limiting slot; Connecting rod (40) is connected to the upper end of the adjusting block (10); Pull rod (30) is connected between the connecting rod (40) and the connecting rod (8); Limiting plate (50) is connected between the connecting rod (40) and the outer wall of the transmission box (6); Wherein, by rotating the screw rod (9) to drive the adjusting block (10) to move along the arc-shaped path of the limiting slot (201), the connecting rod (8) and the rotating seat (7) are driven by the connecting rod (40) and the pull rod (30) to rotate, and the rotating seat (7) drives the flange shaft (5) and the dial (31) on the horn (3) to rotate, so as to adjust the initial position of the dial (31).

2. The ratcheting and positioning mechanism for the spout bagger according to claim 1, wherein, A stepper motor (60) is arranged on the rack (1), a small gear (601) is connected to the output shaft of the stepper motor (60), and the end of the screw rod (9) is connected with a large gear (602), and the large gear (602) is engaged with the small gear (601) to drive.

3. The goat horn rotary adjustment and positioning mechanism of a valve port bag machine according to claim 1, wherein, It also includes a locking positioning mechanism (70), and the locking positioning mechanism (70) comprises: Locking cylinder (701), the tail of which is connected to the rotating seat (7); Locking block (702) is rotatably mounted between the two rotating seats (7), and the locking block (702) is an eccentric sleeve, which is in contact with the outer wall of the transmission box (6) after rotation and generates friction force; Rotating rod (703) is connected between the two rotating seats (7), and the locking block (702) is connected to the rotating rod (703); Rotating plate (704) is connected to the rotating rod (703), and the end of the rotating plate (704) is connected with the piston rod of the locking cylinder (701).

4. The ratcheting and positioning mechanism of a valve pocket machine according to claim 3, wherein, The locking cylinder (701) is fixedly installed on the rotating seat (7), the locking block (702) is connected with the piston rod of the locking cylinder (701) through the rotating rod (703) and the rotating plate (704), and is rotated and selectively pressed or loosened on the outer wall of the transmission box (6) under the driving of the locking cylinder (701).

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