Shifting fork mechanism for heat sealing positioning of paper cup packaging machine

Abstract

The utility model discloses a shifting fork mechanism for heat sealing positioning of a paper cup packaging machine, and relates to the technical field of packaging machinery. The mounting frame is fixedly connected to the upper part of the mounting frame; the two sliding grooves are formed in the top of the mounting frame; and the two sliding frames both slide in the corresponding sliding grooves, and the two sliding frames are in central symmetry. According to the shifting fork mechanism for heat sealing positioning of the paper cup packaging machine, the stroke of the shifting fork is accurately and rapidly adjusted through cooperation of the two-way threaded rod and the graduated scale, it is ensured that the shifting fork mechanism adapts to packaging bags of different specifications, stroke errors caused by a motor, an air cylinder and other power devices can be avoided by combining a buffer spring after limiting is completed, and the working efficiency is improved. The situation that the packaging bag is damaged due to excessive displacement of the shifting rod piece or the bag opening cannot be flattened due to insufficient displacement is prevented, and the accuracy and stability of the shifting fork assembly are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machinery, in particular to a shift fork mechanism for heat-sealing positioning of a paper cup packaging machine. Background Art

[0002] The shift fork mechanism used for heat-sealing positioning in paper cup packaging machines is a functional component that uses mechanical movement to achieve precise alignment between the paper cup and the heat-sealing mold. Its core functions include positioning correction and posture stabilization. Before the heat-sealing process, the shift fork forcibly adjusts the posture of the paper cup through swinging or clamping actions to ensure that the cup mouth coincides with the center line of the heat-sealing mold. This mechanism belongs to the positioning execution subsystem in the packaging machinery and is one of the key components of the automated packaging production line for paper containers.

[0003] In the existing technology, when dealing with packaging bags of different specifications and sizes, the fork mechanism cannot be accurately matched and applied to different packaging bags, and the applicability is poor. The fork mechanism needs to be manually adjusted and replaced, which is cumbersome and prone to errors, reducing production efficiency and consistency. Utility Model Content

[0004] The utility model discloses a shift fork mechanism for heat-sealing positioning of a paper cup packaging machine, aiming to solve the technical problem that the shift fork mechanism cannot accurately match and be applicable to different packaging bags when dealing with packaging bags of different specifications and sizes.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a shift fork mechanism for heat sealing positioning of a paper cup packaging machine, comprising a mounting base; a mounting frame, the mounting frame is fixedly connected to the top of the mounting base; a sliding groove, the two sliding grooves are both opened at the top of the mounting frame; a sliding frame, the two sliding frames slide in the corresponding sliding grooves, and the two sliding frames are centrally symmetrical; a fixed frame, the fixed frame is fixedly connected to the top of the mounting frame; an adaptive limit module, the adaptive limit module is arranged on the sliding frame and the fixed frame, the adaptive limit module includes a bidirectional threaded rod, both ends of the bidirectional threaded rod are rotatably connected to the fixed frame, both ends of the bidirectional threaded rod are externally connected to the limit rod by thread, the two limit rods are symmetrical to each other, a sliding hole is opened on the fixed frame, one end of the two limit rods slides in the sliding hole, and a scale is fixedly connected to one side of the fixed frame.

[0006] In a preferred solution, the adaptive limit module also includes two sliding mounting seats, the two sliding mounting seats are symmetrical to each other, and the two sliding mounting seats are fixedly connected to the top of the corresponding sliding frame, the two sliding mounting seats are provided with a sliding groove, the two sliding grooves are slidingly connected with a sliding mounting plate, the top of the two sliding mounting plates are fixedly connected with a rotating cylinder, and the output ends of the two rotating cylinders are fixedly connected with a lever member.

[0007] In a preferred solution, the tops of the ends of the two sliding mounting plates that are away from each other are both fixedly connected with blocking plates.

[0008] In a preferred solution, one side of each of the two sliding mounting seats is fixedly connected to two fixed rods, and the two sliding mounting plates slide on the outside of the corresponding fixed rods. Buffer springs are surrounded on the outside of the multiple fixed rods, and one end of the multiple buffer springs is fixedly connected to one side of the corresponding sliding mounting seat, and the other end is fixedly connected to the corresponding sliding mounting plate.

[0009] In a preferred solution, a fixing hole is opened on the fixing frame, a sliding rod is fixedly connected in the fixing hole, two limiting rods slide outside the sliding rod, and one end of the bidirectional threaded rod is fixedly connected to a rotating wheel.

[0010] The shift fork stroke is adjusted accurately and quickly by the cooperation of the two-way threaded rod and the scale, so as to ensure that it can adapt to the packaging bags of different specifications. After the limit is completed, the buffer spring can be combined to avoid the stroke error caused by the motor, cylinder and other power devices, so as to prevent the excessive displacement of the shift rod from causing damage to the packaging bag or insufficient displacement from causing the bag opening to be flattened, thereby improving the accuracy and stability of the shift fork assembly.

[0011] In a preferred solution, a transmission rack is fixedly connected to the adjacent side of the two sliding frames, and a drive motor is fixedly connected to the mounting frame, and the output end of the drive motor is fixedly connected to a transmission gear, and the teeth of the two transmission racks can engage with the transmission gear.

[0012] In a preferred solution, a telescopic cylinder is fixedly connected to one side of the mounting base.

[0013] From the above, it can be seen that the heat-sealing positioning fork mechanism of a paper cup packaging machine provided by the utility model can accurately and quickly adjust the fork stroke through the cooperation of a bidirectional threaded rod and a scale, ensuring that it can adapt to packaging bags of different specifications. After the limit is completed, combined with the buffer spring, it can avoid the stroke error caused by power devices such as motors and cylinders, prevent the excessive displacement of the lever component from causing damage to the packaging bag or insufficient displacement from causing the bag opening to be unable to be flattened, thereby improving the accuracy and stability of the fork assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a heat-sealing positioning fork mechanism for a paper cup packaging machine proposed in the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the mounting frame of the heat-sealing positioning fork mechanism of a paper cup packaging machine and the bidirectional threaded rod of the adaptive limit module proposed in the utility model;

[0016] Figure 3 This is a structural diagram of the sliding frame and rotating cylinder of the heat-sealing positioning fork mechanism of a paper cup packaging machine proposed in the utility model;

[0017] Figure 4 This is a structural schematic diagram of the sliding mounting seat of the adaptive limit module of the heat-sealing positioning fork mechanism of a paper cup packaging machine proposed in the utility model.

[0018] In the accompanying drawings: 1. Mounting base; 2. Telescopic cylinder; 3. Mounting frame; 4. Fixed frame; 5. Adaptive limit module; 501. Bidirectional threaded rod; 502. Sliding rod; 503. Scale; 504. Limit rod; 505. Rotating wheel; 506. Blocking plate; 507. Sliding mounting seat; 508. Sliding mounting plate; 509. Fixed rod; 510. Buffer spring; 6. Sliding groove; 7. Sliding frame; 8. Transmission rack; 9. Driving motor; 10. Transmission gear; 11. Rotating cylinder; 12. Push rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] The utility model discloses a heat-sealing positioning fork mechanism for a paper cup packaging machine, which is mainly used in scenarios where the fork mechanism cannot accurately match and be applicable to packaging bags of different specifications and sizes.

[0021] Reference Figures 1-4A heat-sealing positioning fork mechanism for a paper cup packaging machine includes a mounting base 1; a mounting frame 3, the mounting frame 3 is fixedly connected to the top of the mounting base 1; a sliding groove 6, two sliding grooves 6 are both opened at the top of the mounting frame 3; a sliding frame 7, two sliding frames 7 slide in the corresponding sliding grooves 6, and the two sliding frames 7 are centrally symmetrical; a fixed frame 4, the fixed frame 4 is fixedly connected to the top of the mounting frame 3; an adaptive limit module 5, the adaptive limit module 5 is arranged on the sliding frame 7 and the fixed frame 4, and the adaptive limit module 5 includes The bidirectional threaded rod 501 is provided, and both ends of the bidirectional threaded rod 501 are rotatably connected to the fixing frame 4. The two ends of the bidirectional threaded rod 501 are externally connected to the limiting rod 504 through a threaded connection. The two limiting rods 504 are symmetrical to each other. A sliding hole is provided on the fixing frame 4. One end of the two limiting rods 504 slides in the sliding hole, and a scale 503 is fixedly connected to one side of the fixing frame 4. The adaptive limit module 5 also includes two sliding mounting seats 507. The two sliding mounting seats 507 are symmetrical to each other, and the two sliding mounting seats 507 are fixedly connected to the top of the corresponding sliding frame 7, and a sliding groove is provided on the two sliding mounting seats 507. A sliding mounting plate 508 is slidably connected in the two sliding grooves. The top of the two sliding mounting plates 508 is fixedly connected to the rotating cylinder 11. The output ends of the two rotating cylinders 11 are fixedly connected to the lever member 12. The tops of the two sliding mounting plates 508 away from each other are fixedly connected to the blocking plate 506. One side of the two sliding mounting seats 507 is fixedly connected to two fixed rods 509, and the two sliding mounting seats 507 are fixedly connected to the two fixed rods 509. The mounting plates 508 all slide on the outside of the corresponding fixed rods 509, and the outside of multiple fixed rods 509 is surrounded by buffer springs 510. One end of the multiple buffer springs 510 is fixedly connected to one side of the corresponding sliding mounting seat 507, and the other end is fixedly connected to the corresponding sliding mounting plate 508. A fixing hole is opened on the fixing frame 4, and the sliding rod 502 is fixedly connected in the fixing hole. The two limiting rods 504 all slide on the outside of the sliding rod 502, and one end of the bidirectional threaded rod 501 is fixedly connected to the rotating wheel 505.

[0022] Reference Figure 1 、 Figure 2 and Figure 3 In a preferred embodiment, a transmission rack 8 is fixedly connected to the adjacent side of the two sliding frames 7, and a drive motor 9 is fixedly connected to the mounting frame 3. The output end of the drive motor 9 is fixedly connected to a transmission gear 10. The teeth of the two transmission racks 8 can engage with the transmission gear 10, and a telescopic cylinder 2 is fixedly connected to one side of the mounting base 1.

[0023] Working principle: When the packaging bags containing paper cups are conveyed to the device, the fork stroke is adjusted according to the specifications of the current batch of packaging bags, and the rotating wheel 505 is rotated to drive the bidirectional threaded rod 501 to rotate. The limiting rods 504 on both sides are driven by the threads to move in opposite directions along the fixed rod 509. The fork stroke corresponding to the current position of the limiting rod 504 is judged by observing the scale 503. After the adjustment is completed, the telescopic cylinder 2 is started to push the mounting base 1 to drive the mechanism to the working station. The rotating cylinders 11 on both sides are started synchronously to drive the shift rod 12 to rotate ninety degrees. At the same time, the drive motor 9 is started to rotate the transmission gear 10. Through the mutual engagement of the transmission gear 10 and the transmission rack 8, the transmission gear 10 rotates and engages with the two transmission racks. The sliding frames 7 move in opposite directions, and the shifting rod 12 moves accordingly. When the blocking plates 506 on both sides come into contact with the corresponding limiting rods 504, the sliding mounting plate 508 and the rotating cylinder 11 stop moving under the restriction of the blocking plates 506 and the limiting rods 504. At this time, the shifting rod 12 reaches the optimal position to open the bag opening of the packaging bag and flatten the bag opening, which can be suitable for packaging bags of different specifications and sizes, and improve the accuracy and use effect of the shift fork assembly. The sliding mounting seat 507 compresses the buffer spring 510 and continues to move a certain distance, which can avoid the stroke error caused by power devices such as motors and cylinders, and prevent the shifting rod 12 from being excessively displaced to cause damage to the packaging bag or insufficiently displaced to make the bag opening unable to be flattened, reducing the heat sealing effect.

[0024] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacements described may be partial structures, devices, or method steps, or they may be complete technical solutions. Any equivalent replacements or modifications based on the technical solution and the concept of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A heat-sealing positioning fork mechanism for a paper cup packaging machine, characterized in that: The invention comprises a mounting base (1); a mounting frame (3), wherein the mounting frame (3) is fixedly connected to the top of the mounting base (1); a sliding groove (6), wherein two sliding grooves (6) are both opened at the top of the mounting frame (3); a sliding frame (7), wherein the two sliding frames (7) slide in corresponding sliding grooves (6), and the two sliding frames (7) are centrally symmetrical; a fixing frame (4), wherein the fixing frame (4) is fixedly connected to the top of the mounting frame (3); an adaptable limit module (5), wherein the adaptable limit module (5) is arranged on the sliding frame (6). On the movable frame (7) and the fixed frame (4), the adaptive limit module (5) includes a bidirectional threaded rod (501), both ends of the bidirectional threaded rod (501) are rotatably connected to the fixed frame (4), both ends of the bidirectional threaded rod (501) are externally connected to limit rods (504) through threads, the two limit rods (504) are symmetrical to each other, a sliding hole is opened on the fixed frame (4), one end of the two limit rods (504) slides in the sliding hole, and a scale (503) is fixedly connected to one side of the fixed frame (4).

2. The heat-sealing positioning fork mechanism of a paper cup packaging machine according to claim 1, characterized in that: The adaptive limit module (5) further comprises two sliding mounting seats (507), the two sliding mounting seats (507) are symmetrical to each other, and the two sliding mounting seats (507) are fixedly connected to the top of the corresponding sliding frame (7), the two sliding mounting seats (507) are provided with a sliding groove, the two sliding grooves are slidably connected to the sliding mounting plates (508), the tops of the two sliding mounting plates (508) are fixedly connected to the rotating cylinders (11), and the output ends of the two rotating cylinders (11) are fixedly connected to the shifting rods (12).

3. The heat-sealing positioning fork mechanism of a paper cup packaging machine according to claim 2, characterized in that: The tops of the ends of the two sliding mounting plates (508) that are away from each other are both fixedly connected with a blocking plate (506).

4. The heat-sealing positioning fork mechanism of a paper cup packaging machine according to claim 3, characterized in that: One side of each of the two sliding mounting seats (507) is fixedly connected to two fixing rods (509), and the two sliding mounting plates (508) slide on the outside of the corresponding fixing rods (509). The outsides of the multiple fixing rods (509) are surrounded by buffer springs (510), and one end of the multiple buffer springs (510) is fixedly connected to one side of the corresponding sliding mounting seat (507), and the other end is fixedly connected to the corresponding sliding mounting plate (508).

5. The heat-sealing positioning fork mechanism of a paper cup packaging machine according to claim 4, characterized in that: The fixing frame (4) is provided with a fixing hole, a sliding rod (502) is fixedly connected in the fixing hole, two limiting rods (504) slide outside the sliding rod (502), and one end of the bidirectional threaded rod (501) is fixedly connected to a rotating wheel (505).

6. The heat-sealing positioning fork mechanism of a paper cup packaging machine according to claim 1, characterized in that: A transmission rack (8) is fixedly connected to the adjacent side of the two sliding frames (7), and a drive motor (9) is fixedly connected to the mounting frame (3). The output end of the drive motor (9) is fixedly connected to a transmission gear (10), and the teeth of the two transmission racks (8) can mesh with the transmission gear (10).

7. The heat-sealing positioning fork mechanism of a paper cup packaging machine according to claim 1, characterized in that: A telescopic cylinder (2) is fixedly connected to one side of the mounting base (1).

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