Automatic feeding and cutting device for watchband processing

Abstract

The utility model discloses a kind of automatic feeding cutting device for watchband processing, including workbench, the workbench top is sequentially provided with material roller frame, feeding assembly and stand from right to left, the top of the stand is fixedly installed with cylinder one, the bottom of the cylinder one is fixedly installed with cutting knife, the left side of the workbench is fixedly installed with blanking assembly, the top of the workbench is provided with recess located in the directly below feeding assembly.This automatic feeding cutting device for watchband processing, through watchband material pull out and place on supporting roller, compression roller is pressed on supporting roller, control drive motor one lets compression roller and supporting roller synchronous reverse rotation, the watchband material is conveyed towards cutting knife below, when compression roller rotates, the number of turns is recorded using encoder, and the length of the watchband material is determined by calculating the distance of the watchband material movement according to the number of turns of the compression roller, and then the watchband can be positioned after cutting.

Description

Technical Field

[0001] This utility model relates to the field of watch strap processing technology, specifically to an automatic feeding and cutting device for watch strap processing. Background Technology

[0002] A watch is an accessory and tool worn on the wrist to display time. It typically consists of a dial, hands, and a strap. Watches are used to tell time and facilitate people's daily life and work arrangements. The watch market offers various types and sizes of straps to meet consumers' personalized needs. Watch straps require a cutting device to cut them to a specified length during manufacturing.

[0003] The existing patent authorization announcement number CN215548875U discloses a cutting device with a length control structure for watch strap processing. By setting the positioning rollers on the left and right sides of the cutting frame, it is easy to rotate the handle to drive the screw to rotate, so that the two sliding sleeves move towards the center under the engagement of the screw. This allows the inner sides of the two positioning sleeves to fit with the front and back outer sides of the watch strap, thus limiting the width of the watch strap. By setting the scale on the top of the guide plate, it is easy to move the position of the slide on the guide plate to adjust the position of the baffle. This allows the right end of the watch strap to fit with the left end of the baffle when cutting the watch strap, thus controlling the cutting length.

[0004] In the aforementioned patent, the watch strap material is cut by pulling it out from the feeding roller and passing it between the positioning rollers. This requires manual pulling out of the watch strap material and determining its length. Additionally, the material needs to be manually collected after cutting, making it inconvenient to use. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic feeding and cutting device for watch strap processing, so as to solve the problems mentioned in the background art, which require manual pulling out of the watch strap material and determining the length, and manual collection of the material after cutting, which is not convenient to use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic feeding and cutting device for watch strap processing, comprising a worktable, a material roller frame, a feeding assembly, and a vertical frame arranged sequentially from right to left on the top of the worktable, a cylinder 1 fixedly mounted on the top of the vertical frame, a cutting blade fixedly mounted on the bottom of the cylinder 1, a feeding assembly fixedly mounted on the left side of the worktable, and a groove located directly below the feeding assembly on the top of the worktable; the feeding assembly includes a support frame and a support roller, the support frame fixedly mounted on the top of the worktable, a cylinder 2 fixedly mounted on the top of the support frame, a lifting frame located inside the support frame fixedly mounted on the bottom of the cylinder 2, a pressure roller rotatably mounted on the inner side of the lifting frame, the support roller rotatably mounted inside the groove, a drive motor 1 connected to the pressure roller and the support roller fixedly mounted on the rear side of the lifting frame and inside the worktable respectively, an encoder connected to the pressure roller fixedly mounted on the front side of the lifting frame, and a limit mechanism fixedly mounted on the top of the lifting frame.

[0007] Preferably, the pressure roller is positioned directly above the support roller, and both the pressure roller and the support roller are provided with an anti-slip coating.

[0008] Preferably, the limiting mechanism includes a frame fixedly installed on the top of the lifting frame. Inside the frame, a guide rod and a bidirectional lead screw are rotatably installed on the left and right sides, respectively. Two U-shaped sliders are symmetrically arranged front and rear on the external threads of the bidirectional lead screw. Both U-shaped sliders are movably sleeved on the outside of the guide rod. Vertically arranged guide rollers are rotatably installed below the opposite side of the two U-shaped sliders. A handwheel is fixedly connected to the front end of the bidirectional lead screw.

[0009] Preferably, the guide rollers are symmetrically distributed on the left and right sides of the pressure roller.

[0010] Preferably, the feeding assembly includes a guide plate fixedly installed on the left side of the workbench. The top of the guide plate has an installation groove. A drive roller and a plurality of driven rollers are rotatably installed inside the installation groove. The drive roller and the plurality of driven rollers are equidistantly arranged inside the installation groove. A drive motor connected to the drive roller is fixedly installed on the front side of the guide plate.

[0011] Preferably, the drive roller is located in the mounting groove on the side close to the worktable.

[0012] Preferably, the guide plate is inclined to the lower left.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The watch strap material is pulled out and placed on the support roller. The pressure roller presses down on the support roller. The drive motor is controlled to make the pressure roller and the support roller rotate synchronously in opposite directions, feeding the watch strap material towards the cutting blade. When the pressure roller rotates, the encoder records the number of revolutions. The encoder calculates the distance the watch strap material moves based on the number of revolutions of the pressure roller to determine its length. This allows for automatic feeding and positioning of the watch strap after cutting, improving ease of use.

[0015] 2. The feeding assembly supports the cut watch strap material. The second drive motor drives the active roller to rotate. When the active roller rotates, it conveys the watch strap material above to the left side of the guide plate. The watch strap material is quickly and smoothly moved to the left side above the rolling mounting groove and falls into the preset container for rapid collection. This realizes automatic and continuous feeding of the cut watch strap material, improving continuity and efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the support roller of this utility model installed in the groove;

[0018] Figure 3 This is a schematic diagram of the feeding assembly of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the limiting mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the feeding assembly of this utility model.

[0021] In the diagram: 1. Workbench; 11. Groove; 2. Material roller frame; 3. Feeding assembly; 31. Support frame; 32. Cylinder II; 33. Lifting frame; 34. Pressure roller; 35. Support roller; 36. Drive motor I; 37. Encoder; 38. Limiting mechanism; 381. Frame; 382. Bidirectional lead screw; 383. Guide rod; 384. U-shaped slider; 385. Guide roller; 386. Handwheel; 4. Stand; 5. Cylinder I; 6. Cutting blade; 7. Unloading assembly; 71. Guide plate; 72. Mounting groove; 73. Drive roller; 74. Driven roller; 75. Drive motor II. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a technical solution: an automatic feeding and cutting device for watch strap processing, including a worktable 1. From right to left, a material roller frame 2, a feeding assembly 3, and a support frame 4 are arranged sequentially on the top of the worktable 1. A cylinder 5 is fixedly installed on the top of the support frame 4, and a cutting blade 6 is fixedly installed on the bottom of the cylinder 5. A feeding assembly 7 is fixedly installed on the left side of the worktable 1. A groove 11 is formed on the top of the worktable 1, located directly below the feeding assembly 3. The feeding assembly 3 includes a support frame 31 and a support roller 35. The support frame 31 is fixedly installed on the top of the worktable 1, and a cylinder 32 is fixedly installed on the top of the support frame 31. A cutting blade 6 is fixedly installed on the bottom of the cylinder 32. A lifting frame 33 is located inside the support frame 31. A pressure roller 34 is rotatably mounted on the inner side of the lifting frame 33, and a support roller 35 is rotatably mounted inside the groove 11. A drive motor 36 connected to the pressure roller 34 and the support roller 35 is fixedly mounted on the rear side of the lifting frame 33 and inside the worktable 1, respectively. An encoder 37 connected to the pressure roller 34 is fixedly mounted on the front side of the lifting frame 33. A limit mechanism 38 is fixedly mounted on the top of the lifting frame 33. By pulling the watch strap from the material roller on the material roller frame 2 onto the support roller 35, and then operating the cylinder 32 to lower the lifting frame 33, the lifting frame 33 drives the pressure roller 34 to move downward, and the pressure roller 34 presses down onto the support roller 35. By controlling the drive motor 36 connected to the pressure roller 34 and the support roller 35 to rotate synchronously in opposite directions, the watch strap material can be conveyed downwards towards the cutting blade 6. When the pressure roller 34 rotates, the encoder 37 records the number of rotations. The encoder 37 calculates the distance the watch strap material moves based on the number of rotations of the pressure roller 34 to determine its length. This allows for automatic feeding and positioning of the watch strap after cutting, improving ease of use.

[0024] A PLC controller is installed on the front of the workbench 1. The encoder 37 can calculate the conveying length based on the number of rotations of the pressure roller 34 and the outer diameter circumference of the pressure roller 34, and thus determine the cutting length of the watch strap. The encoder 37 converts the rotational motion into pulse signals through photoelectric or magnetic detection. The encoder 37 outputs a fixed number of pulses for each rotation. The data is transmitted to the PLC controller. The PLC controller analyzes and processes the received length data. By calculating the actual length corresponding to the unit pulse, the total length can be calculated. When the conveying length of the watch strap material reaches the preset value, the PLC controller immediately issues a command to control the drive motor 36 to stop running. At the same time, the cylinder 5 is started to drive the cutting blade 6 to descend and automatically cut the watch strap.

[0025] The pressure roller 34 is positioned directly above the support roller 35. The outer surfaces of the pressure roller 34 and the support roller 35 are coated with an anti-slip coating, which effectively increases the friction between the pressure roller and the strap material, prevents slippage during the conveying process, ensures the stability and accuracy of material conveying, and avoids length measurement errors caused by slippage.

[0026] The limiting mechanism 38 includes a frame 381 fixedly installed on the top of the lifting frame 33. Inside the frame 381, a guide rod 383 and a double-acting screw 382 are rotatably installed on the left and right sides, respectively. Two U-shaped sliders 384, symmetrically arranged front and rear, are threaded onto the external threads of the double-acting screw 382. Both U-shaped sliders 384 are movably sleeved on the outside of the guide rod 383. Vertically arranged guide rollers 385 are rotatably installed below each of the two U-shaped sliders 384 on opposite sides. A handwheel 386 is fixedly connected to the front end of the double-acting screw 382. By rotating the handwheel... 386 can drive the bidirectional lead screw 382 to rotate. Since the two U-shaped sliders 384 are threadedly connected to the bidirectional lead screw 382 and sleeved on the guide rod 383, when the bidirectional lead screw 382 rotates, it will drive the two U-shaped sliders 384 to move in opposite directions or away from each other along the guide rod 383, thereby adjusting the distance between the two guide rollers 385. The guide rollers 385 can limit the front and rear positions of the watch strap material to prevent the material from shifting during the conveying process, further ensuring the accuracy of the cutting position, and are suitable for the processing needs of watch strap materials of different widths.

[0027] The guide rollers 385 are symmetrically distributed on the left and right sides of the pressure roller 34. They can effectively guide and limit the watch strap material before it enters the pressure roller 34 and after it leaves the pressure roller 34, forming a continuous guide path. When the watch strap material is conveyed, it first passes through the guide roller 385 on one side for preliminary position calibration, so that it can accurately enter under the pressure roller 34. During the process of the pressure roller 34 pressing and conveying the material, the guide roller 385 on the other side continues to limit the position of the material, ensuring that the material maintains a stable posture throughout the conveying process and avoiding positional deviations caused by the pressure of the pressure roller 34 or friction during the conveying process.

[0028] Please see Figure 1 and Figure 5The unloading assembly 7 includes a guide plate 71 fixedly installed on the left side of the workbench 1. The top of the guide plate 71 has an installation groove 72. A drive roller 73 and multiple driven rollers 74 are rotatably mounted inside the installation groove 72. The drive roller 73 and multiple driven rollers 74 are equidistantly arranged inside the installation groove 72. A second drive motor 75 connected to the drive roller 73 is fixedly installed on the front side of the guide plate 71. The unloading assembly 7 supports the cut watch strap material. The second drive motor 75 drives the drive roller 73 to rotate. When the drive roller 73 rotates, it conveys the watch strap material above to the left side of the guide plate 71. The watch strap material rolls in the installation groove 71. The material is quickly conveyed and collected from the top. During this process, multiple driven rollers 74 rotate synchronously under the drive of the watch strap material. Through cooperation with the drive roller 73, a stable conveying plane is formed, which effectively reduces the friction during material conveying and ensures that the watch strap material will not get stuck during movement. The tilt angle of the guide plate 71 is precisely designed so that the cut watch strap material can move smoothly to the left by its own gravity and the driving force of the drive roller 73, and finally fall into the preset collection container. This realizes the automated continuous feeding operation of the cut watch strap material, and improves the continuity and efficiency of the overall processing flow.

[0029] The active roller 73 is located in the mounting groove 72 on one side near the worktable 1, and its outer surface is covered with a layer of wear-resistant rubber material. The surface of the rubber layer has uniformly distributed anti-slip texture, which can provide sufficient friction when conveying the watch strap material, avoid the material from slipping during the conveying process, and further ensure the stability and accuracy of the conveying.

[0030] The guide plate 71 is tilted to the lower left. The tilt angle of the guide plate 71 is precisely designed so that the cut watch strap material can move smoothly to the left by its own gravity and the driving force of the drive roller 73.

[0031] Working principle: The material roller with the watch strap material is installed on the material roller frame 2, and the watch strap is pulled out and placed on the support roller 35. Then, the lifting frame 33 is driven to descend by the control cylinder 32. The lifting frame 33 drives the pressure roller 34 to move down and presses on the support roller 35.

[0032] Then, by rotating the handwheel 386, the bidirectional lead screw 382 is rotated. The rotation of the bidirectional lead screw 382 drives the two U-shaped sliders 384, which are arranged opposite to each other, to move outwards along the bidirectional lead screw 382 and the guide rod 383. The guide rollers 385 below the opposite side of the two U-shaped sliders 384 provide a limit from the front and rear sides to clamp the watch strap material, preventing the watch strap material from tilting or deviating. By controlling the drive motor 36 connected to the pressure roller 34 and the support roller 35, the pressure roller 34 and the support roller 35 are driven to rotate synchronously in opposite directions, thereby conveying the watch strap material downwards to the cutting blade 6. When the pressure roller 34 rotates, the encoder 37 counts the revolutions. The encoder 37 calculates the distance the watch strap material moves based on the number of revolutions of the pressure roller 34, and then determines its length. Subsequently, the cylinder 5 is controlled to drive the cutting blade 6 to descend. The cutting blade 6 moves down to cut the watch strap material from above.

[0033] The cut watch strap material is located on the feeding assembly 7. The drive motor 75 drives the active roller 73 to rotate. The active roller 73 rotates and conveys the watch strap material above it to the left side of the guide plate 71. The watch strap material is conveyed above the rolling mounting groove 72 and can be quickly collected. The above is the working process of the whole device. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding and cutting device for watch strap processing, comprising a worktable (1), characterized in that: The top of the workbench (1) is provided with a material roller frame (2), a feeding assembly (3) and a vertical frame (4) arranged sequentially from right to left. A cylinder (5) is fixedly installed on the top of the vertical frame (4), and a cutting blade (6) is fixedly installed on the bottom of the cylinder (5). A feeding assembly (7) is fixedly installed on the left side of the workbench (1). A groove (11) is opened on the top of the workbench (1) located directly below the feeding assembly (3). The feeding assembly (3) includes a support frame (31) and a support roller (35). The support frame (31) is fixedly installed on the top of the workbench (1), and a cylinder (6) is fixedly installed on the top of the support frame (31). Cylinder 2 (32), the bottom of cylinder 2 (32) is fixedly installed with a lifting frame (33) located inside the support frame (31), the inner side of the lifting frame (33) is rotatably installed with a pressure roller (34), the support roller (35) is rotatably installed inside the groove (11), the rear side of the lifting frame (33) and the inside of the worktable (1) are respectively fixedly installed with a drive motor 1 (36) connected to the pressure roller (34) and the support roller (35), the front side of the lifting frame (33) is fixedly installed with an encoder (37) connected to the pressure roller (34), and the top of the lifting frame (33) is fixedly installed with a limit mechanism (38).

2. The automatic feeding and cutting device for watch strap processing according to claim 1, characterized in that: The pressure roller (34) is positioned directly above the support roller (35), and the outside of the pressure roller (34) and the support roller (35) is provided with an anti-slip coating.

3. The automatic feeding and cutting device for watch strap processing according to claim 1, characterized in that: The limiting mechanism (38) includes a frame (381) fixedly installed on the top of the lifting frame (33). Inside the frame (381), a guide rod (383) and a double-acting screw (382) are rotatably installed on the left and right sides respectively. Two U-shaped sliders (384) are symmetrically arranged front and back on the external thread of the double-acting screw (382). The two U-shaped sliders (384) are movably sleeved on the outside of the guide rod (383). A vertically arranged guide roller (385) is rotatably installed below the opposite side of the two U-shaped sliders (384). A handwheel (386) is fixedly connected to the front end of the double-acting screw (382).

4. The automatic feeding and cutting device for watch strap processing according to claim 3, characterized in that: The guide rollers (385) are symmetrically distributed on the left and right sides of the pressure roller (34).

5. The automatic feeding and cutting device for watch strap processing according to claim 1, characterized in that: The feeding assembly (7) includes a guide plate (71) fixedly installed on the left side of the workbench (1). The top of the guide plate (71) is provided with a mounting groove (72). Inside the mounting groove (72), a drive roller (73) and a plurality of driven rollers (74) are rotatably installed. The drive roller (73) and the plurality of driven rollers (74) are equidistantly arranged inside the mounting groove (72). A second drive motor (75) connected to the drive roller (73) is fixedly installed on the front side of the guide plate (71).

6. The automatic feeding and cutting device for watch strap processing according to claim 5, characterized in that: The active roller (73) is located in the mounting groove (72) on one side near the worktable (1).

7. The automatic feeding and cutting device for watch strap processing according to claim 5, characterized in that: The guide plate (71) is inclined to the lower left.

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