A locking and retarding device for a carton stamp of a packaging machine

Abstract

The utility model discloses a kind of packaging machine strip box steel seal locking stop device, steel seal piece is detachably installed in the slot on the circumference of steel seal disc, arc slot is opened on the front end face of steel seal disc push block pedestal, realize the locking or release of steel seal piece by push block back and forth movement in arc slot, locking stop device is installed on the front end face of push block pedestal, locking stop device includes mounting shaft fixedly installed on push block pedestal, locking arm, torsional spring and adjusting washer are successively sleeved on mounting shaft from back to front, the both ends of torsional spring are connected with locking arm and adjusting washer respectively, locking arm is push end at one end away from mounting shaft, under the action of torsional spring, the push end of locking arm is always elastically pressed to push block so that push block is in the locking position of arc slot.The utility model has the following advantages compared with prior art: effective locking of steel seal piece is realized, the effectiveness of strip box steel seal printing link is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of cigarette production equipment, and in particular to a steel stamp locking and anti-reverse device for packaging machine carton. Background Technology

[0002] The GDX2 packaging unit includes the YB45 small box packaging machine, the YB55 outer transparent paper packaging machine, the YB65 carton packaging machine, and the YB95 carton transparent paper packaging machine, realizing the production of cigarettes from individual cigarettes to carton packaging. The YB65 carton packaging machine mainly completes the forming of cigarette packs from flat packs to carton packs, with steel stamping being a process in the carton conveying and folding process. Generally, steel stamping of cartons occurs during the unfolding and conveying of the carton label paper. A steel stamping disc fixed on a shaft rotates, printing the steel stamp on the disc onto a fixed position on the carton paper.

[0003] The mounting structure of the stamping sheet on the stamping disc is as follows: The stamping disc has several slots on its circumference. The stamping sheet is inserted into the slots, and a locking block inside the disc is moved back and forth by a lever inserted from the front end of the disc, thus locking or releasing the stamping sheet. A lever base is fixed to the front end of the stamping disc, and an arc-shaped groove is formed on the lever base. The lever can move back and forth in the arc-shaped groove. When the lever is in the locked position of the arc-shaped groove, the locking block is pressed and moves backward, locking the stamping sheet. When the lever is moved to the left limit position of the arc-shaped groove, the lever is in the unlocked position of the arc-shaped groove, and the locking block is released. Under the elastic force of the spring, the locking block returns to the front limit position, releasing the stamping sheet. The stamping sheet is now unlocked and can be removed from the slot for replacement with stamping sheets of different grades.

[0004] In existing equipment, the positioning of the lever and the arc-shaped groove on the lever base relies solely on friction. In actual production, the lever is prone to sliding in the arc-shaped groove, causing the steel stamp to be unlocked and thrown out, resulting in a quality defect of no steel stamp on the carton paper. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a packaging machine bar box steel stamp locking and anti-reverse device to effectively lock the steel stamp sheet and ensure the effectiveness of the bar box steel stamp printing process.

[0006] This utility model is achieved through the following technical solution: A packaging machine's steel stamp locking and anti-reverse device includes a steel stamp sheet detachably installed in a slot on the circumferential surface of a steel stamp disc. A lever base is fixed on the front end face of the steel stamp disc, and an arc-shaped groove is formed on the lever base. By moving the lever back and forth in the arc-shaped groove, the steel stamp sheet can be locked or released. An anti-reverse device is installed on the front end face of the lever base. The anti-reverse device includes a mounting shaft fixedly installed on the lever base. An anti-reverse arm, a torsion spring, and an adjusting washer are sequentially mounted on the mounting shaft from back to front. The two ends of the torsion spring are respectively connected to the anti-reverse arm and the adjusting washer. The end of the anti-reverse arm away from the mounting shaft is a lever end. Under the action of the torsion spring, the lever end of the anti-reverse arm always elastically presses against the lever, keeping the lever in the locked position of the arc-shaped groove.

[0007] As a preferred embodiment of the packaging machine's steel stamp locking and anti-reverse device, the adjusting washer is movably mounted on the mounting shaft. It is screwed into the lateral screw hole of the adjusting washer by a lateral locking screw and pressed against the mounting shaft, thereby achieving the locking installation of the adjusting washer and the mounting shaft.

[0008] As a preferred embodiment of the packaging machine strip box steel stamp locking and anti-reverse device described above, the mounting shaft is located at the lower left of the arc groove, and the actuating end of the anti-reverse arm has a limit groove, which matches the shape of the left end of the actuating block.

[0009] As a preferred embodiment of the packaging machine strip box steel stamp locking and anti-reverse device described above, the mounting shaft is threadedly connected to the mounting hole on the toggle block base.

[0010] This invention has the following advantages over the prior art: This utility model provides a locking and anti-reverse device for the steel stamp on a carton. An anti-reverse device is added to the front surface of the toggle block base. Under the elastic force of the torsion spring, the moving end of the anti-reverse block is always elastically pressed against the toggle block, so that the toggle block is stably kept in the locking position. This avoids the steel stamp sheet being thrown out due to the sliding of the toggle block, and achieves effective locking of the steel stamp sheet, ensuring the effectiveness of the carton steel stamp printing process. Attached Figure Description

[0011] Figure 1 This is a three-dimensional view of the overall structure of this utility model.

[0012] Figure 2 yes Figure 1 3D exploded view.

[0013] Figure 3 This is a perspective view of the anti-reverse device of this utility model.

[0014] Figure 4 This is a schematic diagram of the structure of the steel stamp sheet of this utility model in the unlocked state, showing the cooperation between the toggle block and the locking block.

[0015] Figure 5This is a schematic diagram of the structure of the steel stamp sheet of this utility model in the locked state, showing the cooperation between the toggle block and the locking block.

[0016] The following numbers are labeled in the diagram: 1. Stamped plate; 2. Stamped disc; 3. Slot; 4. Toggle base; 5. Arc groove; 6. Inner cavity; 7. Locking block; 8. Spring; 9. Arc-shaped limit plate; 10. Slot; 11. Mounting shaft; 12. Anti-reverse arm; 13. Torsion spring; 14. Adjusting washer; 15. Limit groove; 16. Lateral screw hole; 17. Toggle block. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0018] See Figures 1 to 5 This embodiment discloses a steel stamp locking and anti-reverse device for packaging machine carton. The steel stamp sheet 1 is detachably installed in the slot 3 on the circumferential surface of the steel stamp disc 2. A lever base 4 is fixed on the front end face of the steel stamp disc 2. The lever base 4 has an arc-shaped groove 5. The lever 17 moves back and forth in the arc-shaped groove 5 to lock or release the steel stamp sheet 1. The inner cavity 6 of the steel stamp disc 2 is provided with a locking block 7. The locking block 7 can slide back and forth in the inner cavity 6 of the steel stamp disc 2. The locking block 7 is elastically pressed forward by two springs 8. The protrusions of the lever 17 and the grooves of the locking block 7 are tenon-and-mortise engaged. When the lever 17 is in the unlocked position at the left end of the arc groove 5, the lever 17 and the locking block 7 are in a tenon-and-mortise fit, the locking block 7 is in the front limit position, the arc-shaped limiting piece 9 on the rear side of the locking block 7 disengages from the slot 10 at the front end of the stamped plate 1, and the stamped plate 1 is unlocked; when the lever 17 is in the locked position at the right end of the arc groove 5, the protrusion of the lever 17 corresponds to the protrusion of the locking block 7, the protrusion of the lever 17 pushes the locking block 7 backward, so that the locking block 7 moves backward to the rear limit position, at which point the arc-shaped limiting piece 9 on the rear side of the locking block 7 is embedded in the slot 10 of the stamped plate 1, thereby locking the stamped plate 1.

[0019] A locking device is installed on the front end face of the lever base 4. The locking device includes a mounting shaft 11 fixedly mounted on the lever base 4. The mounting shaft 11 is threadedly connected to the mounting hole on the lever base 4, and the mounting shaft 11 is located at the lower left of the arc groove 5. A locking arm 12, a torsion spring 13, and an adjusting washer 14 are sequentially mounted on the mounting shaft 11 from back to front. The two ends of the torsion spring 13 are connected to the locking arm 12 and the adjusting washer 14, respectively. The end of the locking arm 12 away from the mounting shaft 11 is the actuating end. Under the action of the torsion spring 13, the actuating end of the locking arm 12 always elastically presses against the lever 17, so that the lever 17 is in the locked position of the arc groove 5. The actuating end of the locking arm 12 has a limiting groove 15, which matches the shape of the left end of the lever 17.

[0020] The adjusting washer 14 is movably mounted on the mounting shaft 11. It is screwed into the lateral screw hole 16 of the adjusting washer 14 by a lateral locking screw and pressed against the mounting shaft 11, thus achieving a locked installation between the adjusting washer 14 and the mounting shaft 11. The axial and circumferential positions of the adjusting washer 14 on the mounting shaft 11 can be adjusted to regulate the preload of the torsion spring 13, thereby adjusting the elastic pressure of the anti-reverse block on the lever block 17.

[0021] When the equipment is working normally, the push block 17 is in the locked position in the arc groove 5. Under the elastic force of the torsion spring 13, the push end of the anti-reverse block is always elastically pressed against the push block 17, so that the push block 17 is stably kept in the locked position. This avoids the situation where the steel stamp sheet 1 is thrown out due to the sliding of the push block 17, and achieves effective locking of the steel stamp sheet 1, ensuring the effectiveness of the steel stamp printing process of the carton.

[0022] When it is necessary to replace the stamped sheet 1 with a different grade, lift the anti-reverse block upwards and move the lever 17 to the left, so that the lever 17 moves to the left in the arc-shaped groove 5 until the protrusion of the lever 17 corresponds exactly to the groove of the locking block 7. At this point, the locking block 7 is released, and under the elastic force of the spring 8, the locking block 7 is pushed forward to the front limit position, so that the arc-shaped limiting piece 9 on the rear side of the locking block 7 disengages from the slot 10 at the front end of the stamped sheet 1. The stamped sheet 1 is then unlocked, and it can be removed for replacement. The operation is convenient and quick.

[0023] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel stamp locking and anti-reverse device for packaging machine carton, wherein the steel stamp sheet is detachably installed in a slot on the circumferential surface of the steel stamping disc, a lever base is fixed on the front end face of the steel stamping disc, and an arc-shaped groove is formed on the lever base. By moving the lever back and forth in the arc-shaped groove, the steel stamp sheet is locked or released, characterized in that: A backstop device is installed on the front end face of the paddle base. The backstop device includes a mounting shaft fixedly installed on the paddle base. A backstop arm, a torsion spring, and an adjusting washer are sequentially mounted on the mounting shaft from back to front. The two ends of the torsion spring are connected to the backstop arm and the adjusting washer, respectively. The end of the backstop arm away from the mounting shaft is the actuating end. Under the action of the torsion spring, the actuating end of the backstop arm always elastically presses against the paddle, so that the paddle is in the locking position of the arc groove.

2. The packaging machine strip box steel stamp locking and anti-reverse device as described in claim 1, characterized in that: The adjusting washer is movably mounted on the mounting shaft. It is screwed into the lateral screw hole of the adjusting washer by a lateral locking screw and pressed against the mounting shaft, thereby achieving a locking installation between the adjusting washer and the mounting shaft.

3. The packaging machine strip box steel stamp locking and anti-reverse device as described in claim 1, characterized in that: The mounting shaft is located at the lower left of the arc-shaped groove, and the actuating end of the anti-reverse arm has a limiting groove, which matches the shape of the left end of the actuating block.

4. The packaging machine strip box steel stamp locking and anti-reverse device as described in claim 1, characterized in that: The mounting shaft is threadedly connected to the mounting hole on the dial base.

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