Cutting device for plastic bottle caps

Abstract

The utility model relates to the technical field of cutting devices, and provides a plastic bottle cap cutting device which comprises a supporting frame, a working table, a fixed seat, a rotating frame, a push column, a cutting assembly, a mounting plate, a rotating mechanism, a lifting mechanism, a transmission mechanism and a feeding frame, the fixed seat is fixedly connected to the top end of the working table, and the rotating frame is rotationally connected to the top end of the fixed seat; a plurality of pushing columns are fixedly connected to the rotating frame, the mounting plate is fixedly connected to the supporting frame, the rotating mechanism is arranged at the bottom of the rotating frame and used for controlling the rotating frame to rotate by a certain angle every time, the lifting mechanism is arranged at the bottom of the workbench and used for pushing plastic bottle caps to the pushing columns, and the transmission mechanism is arranged at the bottom of the lifting mechanism. The feeding frame is used for transmitting power generated by the rotating mechanism to the lifting mechanism and installed at the top end of the workbench. By means of the technical scheme, the problem that in the prior art, when a plastic bottle cap cutting device conducts ring cutting on bottle caps, frequent manual feeding is needed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting devices, and particularly to a cutting device for plastic bottle caps. Background Art

[0002] Plastic bottle caps are a common form of packaging for bottles and are widely used in fields such as food, medicine, and chemical industry. A disposable break-off anti-theft ring is usually provided at the bottom of a plastic bottle cap. When the bottle cap is rotated and unscrewed, multiple connection points between the bottle cap body and the anti-theft ring will break, and the anti-theft ring will fall off and remain on the plastic bottle. Consumers can judge whether the product has been opened by observing the integrity of the connection points, thus ensuring the safety and hygiene of the product.

[0003] When using a cutting device to process the anti-theft ring of a plastic bottle cap, a circular arc blade with a notch is usually used for ring cutting to form a number of evenly distributed connection points on the plastic bottle cap. However, when processing multiple plastic bottle caps, manual feeding and placement are required frequently, and this feeding method affects the production efficiency of the cutting device. Therefore, the utility model provides a cutting device for plastic bottle caps. Summary of the Utility Model

[0004] The utility model provides a cutting device for plastic bottle caps, which solves the problem of frequent manual feeding when the cutting device for plastic bottle caps in the related art cuts the anti-theft ring of the bottle cap.

[0005] The technical solution of the utility model is as follows: A cutting device for plastic bottle caps includes a support frame, a workbench, a fixed seat, a rotating frame, a push column, a cutting assembly, a mounting plate, a rotating mechanism, a lifting mechanism, a transmission mechanism, and a feeding frame. The fixed seat is fixedly connected to the top of the workbench, the rotating frame is rotatably connected to the top of the fixed seat, and a plurality of the push columns are fixedly connected to the rotating frame. The mounting plate is fixedly connected to the support frame. The rotating mechanism is arranged at the bottom of the rotating frame and is used to control the rotating frame to rotate a certain angle each time. The lifting mechanism is arranged at the bottom of the workbench and is used to push the plastic bottle cap onto the push column. The transmission mechanism is arranged at the bottom of the lifting mechanism and is used to transmit the power generated by the rotating mechanism to the lifting mechanism. The feeding frame is installed on the top of the workbench.

[0006] Preferably, the rotating mechanism includes a motor, a rotating shaft, a dial, a connecting shaft, and a Geneva wheel. The motor is installed at the bottom end of the mounting plate. The rotating shaft is rotatably connected to the mounting plate. One end of the rotating shaft is fixedly connected to the output end of the motor. The other end of the rotating shaft is fixedly connected with the dial. The dial is provided with a dial pin and a convex locking arc. The connecting shaft is rotatably connected to the workbench. The top end of the connecting shaft is fixedly connected to the bottom end of the rotating frame. The bottom end of the connecting shaft is fixedly connected with the Geneva wheel. The Geneva wheel is provided with a plurality of radial slots and a plurality of concave locking arcs. The number of the radial slots and the concave locking arcs is the same as that of the push columns. The plurality of radial slots and the plurality of concave locking arcs are arranged at intervals and staggered. Among them, the dial pin is adapted to the plurality of radial slots. When the dial pin enters the radial slot, it can drive the Geneva wheel to rotate. And the convex locking arc is adapted to the plurality of concave locking arcs. When the dial pin exits the radial slot, the convex locking arc makes the Geneva wheel stop rotating.

[0007] Preferably, the transmission mechanism includes a driving gear, an adjusting shaft, and a driven gear. The driving gear is fixedly connected to the rotating shaft. The adjusting shaft is rotatably connected to the mounting plate. The driven gear is fixedly connected to the adjusting shaft. The driven gear meshes with the driving gear.

[0008] Preferably, the lifting mechanism includes a reciprocating lead screw, a moving seat, and a lifting table. The reciprocating lead screw is fixedly connected to the top end of the adjusting shaft. The moving seat is threadedly connected to the reciprocating lead screw. The top end of the moving seat is fixedly connected with the lifting table. The lifting table is slidably connected to the workbench.

[0009] Further, an anti-slip pad is installed at a position corresponding to the feeding frame on the outer side wall of the fixed seat. The surface of the anti-slip pad is provided with anti-slip lines.

[0010] Still further, a first protective cover is provided outside the Geneva wheel and the dial. The first protective cover is detachably installed at the top end of the mounting plate. A second protective cover is provided outside the driving gear and the driven gear. The second protective cover is detachably installed at the bottom end of the workbench.

[0011] The working principle and beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, when using the plastic bottle cap cutting device for ring cutting processing, the motor drives the rotating shaft and the driving gear to rotate. The driving gear drives the driven gear and the reciprocating lead screw to rotate. The reciprocating lead screw drives the moving seat and the lifting table to spiral upward, so as to push the plastic bottle cap onto the push column.

[0013] 2. In the present utility model, the motor drives the rotation of the rotating shaft and the dial. When the pin enters the radial groove, the dial starts to drive the sprocket wheel to rotate. The sprocket wheel drives the connecting shaft, the rotating frame, and the push column to rotate. The push column drives the plastic bottle cap to rotate. When the plastic bottle cap passes through the cutting tool, a theft-proof ring is cut out. When the rotating frame rotates through a certain angle, the cutting of the theft-proof ring is completed. Then the pin withdraws from the radial groove, and the convex locking arc on the dial locks the concave locking arc on the sprocket wheel, and the rotating frame stops rotating until the pin continues to rotate to the next radial groove.

[0014] Therefore, compared with the existing plastic bottle cap cutting device that requires frequent manual feeding when cutting the theft-proof ring of the bottle cap, in the present utility model, through the cooperation of the rotating mechanism, the transmission mechanism, and the lifting mechanism, the intermittent rotation of the rotating frame can be controlled. During the rotation process, the plastic bottle cap is cut, and during the intermittent rotation process, the feeding of the plastic bottle cap is completed through the lifting mechanism, thereby realizing the continuous automatic control of the feeding and cutting of the plastic bottle cap, reducing the labor intensity of workers, and improving the production efficiency of the plastic bottle cap cutting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0016] Figure 1 is a schematic structural view of a partial cross-section of the present utility model;

[0017] Figure 2 is a schematic structural view of the whole of the present utility model;

[0018] Figure 3 is a schematic structural view of the whole of the present utility model;

[0019] Figure 4 is a schematic structural view of the cooperation of the rotating frame, the push column, and the rotating mechanism of the present utility model;

[0020] Figure 5 is a schematic structural view of a partial cross-section of the cooperation of the workbench, the rotating frame, the transmission mechanism, and the lifting mechanism of the present utility model.

[0021] In the figure: 1, support frame; 2, workbench; 3, fixed seat; 4, rotating frame; 5, push column; 6, tool holder; 7, arc blade; 8, mounting plate; 9, feeding frame; 10, anti-slip pad; 11, protective cover one; 12, protective cover two; 101, motor; 102, rotating shaft; 103, dial; 104, connecting shaft; 105, sprocket wheel; 106, pin; 107, convex locking arc; 108, radial groove; 109, concave locking arc; 201, driving gear; 202, adjusting shaft; 203, driven gear; 301, reciprocating lead screw; 302, moving seat; 303, lifting table; 304, slideway. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Combined with the embodiments of the present utility model below, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Combined with the embodiments of the present utility model below, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1 to 5 , in this embodiment, a cutting device for a plastic bottle cap is proposed, which includes a support frame 1, a workbench 2, a fixed seat 3, a rotating frame 4, a push column 5, a cutting assembly, a mounting plate 8, a rotating mechanism, a lifting mechanism, a transmission mechanism and a feeding frame 9. The fixed seat 3 is fixedly connected to the top of the workbench 2. The rotating frame 4 is rotatably connected to the top of the fixed seat 3. Six push columns 5 are fixedly connected to the rotating frame 4. The cutting assembly includes a tool holder 6 and an arc blade 7. The tool holder 6 is installed on the top of the workbench 2. The arc blade 7 is installed on the tool holder 6. The cutting edge of the arc blade 7 is fan-shaped and provided with a notch, which can form a connection point on the plastic bottle cap when cutting the anti-theft ring. A friction tooth groove is arranged on the outer side wall of the fixed seat 3 at a position corresponding to the arc blade 7, and the friction tooth groove cooperates with the friction teeth on the outer side of the plastic bottle cap. The mounting plate 8 is fixedly connected to the support frame 1. The rotating mechanism is arranged at the bottom of the rotating frame 4 and is used to control the rotating frame 4 to rotate 60 degrees each time. The lifting mechanism is arranged at the bottom of the workbench 2 and is used to push the plastic bottle cap onto the push column 5. The transmission mechanism is arranged at the bottom of the lifting mechanism and is used to transmit the power generated by the rotating mechanism to the lifting mechanism. The feeding frame 9 is installed on the top of the workbench 2. The workbench 2 is provided with a feeding port and a discharging port. An anti-slip pad 10 is installed on the outer side wall of the fixed seat 3 at a position corresponding to the feeding frame 9. The surface of the anti-slip pad 10 is provided with anti-slip lines to prevent the plastic bottle cap from sliding down when the lifting mechanism descends.

[0025] Please refer to Figures 1 to 4, wherein the rotating mechanism includes a motor 101, a rotating shaft 102, a dial 103, a connecting shaft 104, and a grooved pulley 105. The motor 101 is installed at the bottom end of the mounting plate 8. The rotating shaft 102 is rotatably connected to the mounting plate 8. One end of the rotating shaft 102 is fixedly connected to the output end of the motor 101. The other end of the rotating shaft 102 is fixedly connected with a dial 103. The dial 103 is provided with a dial pin 106 and a convex locking arc 107. The connecting shaft 104 is rotatably connected to the workbench 2. The top end of the connecting shaft 104 is fixedly connected to the bottom end of the rotating frame 4. The bottom end of the connecting shaft 104 is fixedly connected with a grooved pulley 105. The grooved pulley 105 is provided with six radial grooves 108 and six concave locking arcs 109. The six radial grooves 108 and the six concave locking arcs 109 are arranged at intervals and staggered. Among them, the dial pin 106 is adapted to the six radial grooves 108. When the dial pin 106 enters the radial groove 108, it can drive the grooved pulley 105 to rotate. And the convex locking arc 107 is adapted to the six concave locking arcs 109. When the dial pin 106 exits the radial groove 108, the convex locking arc 107 stops the grooved pulley 105 from rotating. In this embodiment, the grooved pulley 105 rotates sixty degrees every time the dial 103 rotates one circle. A protective cover one 11 is provided outside the grooved pulley 105 and the dial 103. The protective cover one 11 is detachably installed at the top end of the mounting plate 8.

[0026] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 , wherein the transmission mechanism includes a driving gear 201, an adjusting shaft 202, and a driven gear 203. The driving gear 201 is fixedly connected to the rotating shaft 102. The adjusting shaft 202 is rotatably connected to the mounting plate 8. The driven gear 203 is fixedly connected to the adjusting shaft 202. The driven gear 203 meshes with the driving gear 201. The number of teeth of the driven gear 203 is less than that of the driving gear 201, which can increase the rotation speed of the driven gear 203 and the reciprocating lead screw 301, thereby reducing the period of one lift of the lifting mechanism. A protective cover two 12 is provided outside the driving gear 201 and the driven gear 203. The protective cover two 12 is detachably installed at the bottom end of the workbench 2.

[0027] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 , wherein the lifting mechanism includes a reciprocating lead screw 301, a moving seat 302, and a lifting platform 303. The reciprocating lead screw 301 is fixedly connected to the top end of the adjusting shaft 202. The moving seat 302 is threadedly connected to the reciprocating lead screw 301. The top end of the moving seat 302 is fixedly connected with a lifting platform 303. A slideway 304 is fixedly connected to the bottom end of the workbench 2. The lifting platform 303 is slidably matched with the slideway 304.

[0028] In this embodiment, by adjusting the relevant parameters of the driven gear 203, the driving gear 201 and the reciprocating lead screw 301, the period of one lift of the lifting mechanism can be set to be the same as the period of one rotation of the dial 103. When using the plastic bottle cap cutting device to cut the anti-theft ring, first open the feed inlet. At this time, the top of the lifting table 303 is flush with the bottom of the feed rack 9, and the plastic bottle cap slides onto the lifting table 303. Then start the motor 101. The motor 101 drives the rotating shaft 102 to rotate. The rotating shaft 102 drives the driving gear 201 and the dial 103 to rotate at the same time. At this time, the dial pin 106 on the dial 103 just exits the radial groove 108, and the convex locking arc 107 on the dial 103 cooperates with one of the concave locking arcs 109 on the Geneva wheel 105. The Geneva wheel 105, the connecting shaft 104 and the rotating frame 4 are all in a static state. At this time, the driving gear 201 drives the driven gear 203 to rotate. The driven gear 203 drives the adjusting shaft and the reciprocating lead screw 301 to rotate. The reciprocating lead screw 301 drives the moving seat 302 and the lifting table 303 to rise spirally until it reaches the top of the threaded part of the reciprocating lead screw 301. At this time, the top of the lifting table 303 is flush with the top of the workbench 2, and the plastic bottle cap is sleeved on the push column 5. Then the reciprocating lead screw 301 continues to rotate, driving the moving seat 302 and the lifting table 303 to descend spirally. Since the anti-slip pad 10 is installed on the fixed seat 3, the plastic bottle cap will not slide off when the lifting table 303 descends. When the dial pin 106 on the dial 103 enters the next radial groove 108, it can drive the Geneva wheel 105 to rotate. The Geneva wheel 105 drives the connecting shaft 104 to rotate. The connecting shaft 104 drives the rotating frame 4 and the push column 5 to rotate. The push column 5 drives the plastic bottle cap fed last time to rotate around the fixed seat 3. At the same time, the friction teeth on the outer side of the plastic bottle cap cooperate with the friction tooth grooves on the fixed seat 3, so that the plastic bottle cap rotates around the fixed seat 3 while rotating itself. The plastic bottle cap is cut by the arc blade 7 to cut out an anti-theft ring with a connection point. After the cutting is completed until the dial pin 106 exits the radial groove 108, at this time, the Geneva wheel 105 and the rotating frame 4 stop rotating, and the lifting mechanism continues to feed.

[0029] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A plastic bottle cap cutting device, comprising a support frame (1), a workbench (2), a fixed seat (3), a rotating frame (4), a push pin (5) and a cutting assembly, wherein the fixed seat (3) is fixedly connected to the top of the workbench (2), the rotating frame (4) is rotatably connected to the top of the fixed seat (3), and a plurality of push pins (5) are fixedly connected to the rotating frame (4), characterized in that: It also includes a mounting plate (8), a rotating mechanism, a lifting mechanism, a transmission mechanism and a feeding rack (9): The mounting plate (8) is fixedly connected to the support frame (1); the rotating mechanism is arranged at the bottom of the rotating frame (4) and is used to control the rotating frame (4) to rotate a certain angle each time; the lifting mechanism is arranged at the bottom of the workbench (2) and is used to push the plastic bottle cap onto the push column (5); the transmission mechanism is arranged at the bottom of the lifting mechanism and is used to transmit the power generated by the rotating mechanism to the lifting mechanism; and the feeding rack (9) is installed at the top of the workbench (2).

2. A plastic bottle cap cutting device according to claim 1, characterized in that: The rotating mechanism comprises a motor (101), a rotating shaft (102), a dial (103), a connecting shaft (104) and a groove wheel (105); The motor (101) is mounted at the bottom end of the mounting plate (8), the rotating shaft (102) is rotatably connected to the mounting plate (8), one end of the rotating shaft (102) is fixedly connected to the output end of the motor (101), the other end of the rotating shaft (102) is fixedly connected to the dial (103), the dial (103) is provided with a dial pin (106) and a convex locking arc (107), and the connecting shaft (104) is rotatably connected to the workbench (2). The top end of the connecting shaft (104) is fixedly connected to the bottom end of the rotating frame (4), and the bottom end of the connecting shaft (104) is fixedly connected to the groove wheel (105), and the groove wheel (105) is provided with a plurality of radial grooves (108) and a plurality of concave locking arcs (109), the number of the radial grooves (108) and the plurality of concave locking arcs (109) is the same as the number of the push column (5), and the plurality of radial grooves (108) and the plurality of concave locking arcs (109) are arranged alternately at intervals; The push pin (106) is matched with the plurality of radial grooves (108), and when the push pin (106) enters the radial groove (108), it can drive the groove wheel (105) to rotate, and the convex locking arc (107) is matched with the plurality of concave locking arcs (109), and when the push pin (106) exits the radial groove (108), the convex locking arc (107) stops the groove wheel (105) from rotating.

3. A plastic bottle cap cutting device according to claim 2, characterized in that: The transmission mechanism comprises a driving gear (201), an adjusting shaft (202) and a driven gear (203); The driving gear (201) is fixedly connected to the rotating shaft (102), the adjusting shaft (202) is rotatably connected to the mounting plate (8), the adjusting shaft (202) is fixedly connected to the driven gear (203), and the driven gear (203) is meshed with the driving gear (201).

4. A plastic bottle cap cutting device according to claim 3, characterized in that: The lifting mechanism comprises a reciprocating screw (301), a moving seat (302) and a lifting platform (303); The reciprocating screw (301) is fixedly connected to the top end of the adjusting shaft (202), the moving seat (302) is threadedly connected to the reciprocating screw (301), the top end of the moving seat (302) is fixedly connected to the lifting platform (303), and the lifting platform (303) is slidably connected to the workbench (2).

5. A plastic bottle cap cutting device according to claim 4, characterized in that: An anti-skid pad (10) is installed on the outer wall of the fixing seat (3) at a position corresponding to the feeding rack (9), and the surface of the anti-skid pad (10) is provided with anti-skid patterns.

6. A plastic bottle cap cutting device according to claim 5, characterized in that: The outer covers of the groove wheel (105) and the dial (103) are provided with a protective cover 1 (11), and the protective cover 1 (11) is detachably mounted on the top end of the mounting plate (8); the outer covers of the driving gear (201) and the driven gear (203) are provided with a protective cover 2 (12), and the protective cover 2 (12) is detachably mounted on the bottom end of the workbench (2).

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