Full-automatic metal bottle cap thread rolling machine

Abstract

The application discloses a full-automatic metal bottle cap thread rolling machine, and particularly relates to a bottle cap processing technical field, which comprises an automatic thread rolling structure and an automatic conveying structure, the automatic conveying structure comprises a hopper, the hopper bottom is communicated with a feeding cylinder, the feeding cylinder is rotationally connected with a feeding disc, the feeding disc is provided with through holes, the feeding cylinder side is provided with a pressing conveying structure, the feeding disc is coaxially fixedly connected with a thread rolling disc in the thread rolling structure, the thread rolling disc is connected with an annular array of support shafts on the side close to the feeding disc, the thread rolling disc is rotationally connected on a rack, and the rack is connected with a thread rolling plate. After the shaped bottle cap is orderly conveyed into the hopper, only the rotation of the feeding disc needs to be controlled, the single bottle cap is pushed onto the support shaft by the pressing conveying structure during the movement of the feeding disc, the thread rolling is completed through the thread rolling structure, and finally the bottle cap is discharged. The process can be completed by only driving the coaxially fixedly connected feeding disc and thread rolling disc to rotate through a single motor, and only the rotation speed of the motor needs to be controlled to control the thread rolling rate.

Description

Technical Field

[0001] This invention relates to the field of bottle cap processing, specifically to a fully automatic metal bottle cap thread rolling machine. Background Technology

[0002] Metal bottle caps include bottle caps made of metal materials such as tinplate and aluminum alloy. The processing flow is to cut the metal raw material sheet into a round piece, and then stretch the round piece into the shape of a bottle cap. Bottle caps used to seal containers also need to be made with sealing threads, which is completed by a thread rolling machine.

[0003] Patent document CN201310367427.0 discloses a fully automatic metal bottle cap rolling machine. It includes a frame on which a drive motor is mounted, along with a rotating material tray, a stamping mechanism, and a rolling mechanism arranged sequentially according to the processing steps. A first feeding guide rail is provided between the rotating material tray and the stamping mechanism, and a second feeding guide rail is provided between the stamping mechanism and the rolling mechanism. The drive motor drives the rolling mechanism, which in turn drives the stamping mechanism. This invention uses a series of mechanical transmissions driven by a motor to transport the bottle cap raw materials in the rotating material tray to the stamping and rolling mechanisms for processing via the feeding guide rails. It achieves automated control of the equipment, reduces human error in traditional bottle cap production, improves the processing accuracy of bottle cap stamping and forming, increases yield and production efficiency, and reduces production costs.

[0004] However, in the automated processing of existing bottle cap rolling machines, multiple drive structures need to work together, requiring the use of corresponding controllers, and the debugging is relatively complicated and the operation is difficult. Summary of the Invention

[0005] The purpose of this invention is to provide a simple-to-operate fully automatic metal bottle cap rolling machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A fully automatic metal bottle cap rolling machine includes an automatic rolling structure and an automatic conveying structure. The automatic conveying structure includes a hopper, the bottom of which is connected to a conveying cylinder. A conveying disc is rotatably connected inside the conveying cylinder. The conveying disc has a through hole. A pressure conveying structure is provided on the side of the conveying cylinder. The conveying disc is coaxially and fixedly connected to the rolling disc in the rolling structure. The side of the rolling disc near the conveying disc is connected to a support shaft of a ring array. The rolling disc is rotatably connected to the frame. A rolling plate is connected to the frame.

[0008] Preferably, the support shaft is rotatably connected to the gear hobbing disc, and a transmission gear is coaxially fixedly connected to the support shaft. The transmission gear is intermittently engaged with the arc-shaped gear plate fixed on the frame, and the front end of the support shaft is connected to an inner support column.

[0009] Preferably, the inner support column is threadedly connected to the support shaft, the inner end of the inner support column is fixedly connected to the retaining ring, the side of the inner support column is provided with a threaded groove that mates with the toothed roller plate, and the toothed roller plate is provided with a linear array of toothed roller threads.

[0010] Preferably, the inner end of the inner support column is fixedly connected to a fixing sleeve, and the fixing sleeve is fixed to the support shaft by a fixing stud. The front end of the inner support column is an arc surface.

[0011] Preferably, the center of the support shaft is rotatably connected to a release rod, the inner end of the release rod is fixedly connected to a release gear, the release gear intermittently meshes with a release arc tooth plate fixedly connected to the frame, and the front end of the release rod is radially fixedly connected to a friction disc.

[0012] Preferably, the release rod has an airflow channel inside, the inner end of the airflow channel is intermittently connected to the release chamber, the friction disc is inserted into the release rod, and the friction disc is connected to the release rod by a spring.

[0013] Preferably, a locking plate is fixedly connected to the inner end of the support shaft, and the locking plate is inserted into a locking groove fixed on the frame. Both the locking plate and the locking groove are arc-shaped with the axis of the roller disc as the center.

[0014] Preferably, the pressing structure includes a pressing plate connected to the side of the conveying cylinder. The pressing plate is spiral-shaped and is horizontally aligned with the through hole on the conveying disc.

[0015] Preferably, the pressure plate is slidably connected to a slide rod fixed on the conveying cylinder, and an adjusting screw is rotatably connected to the pressure plate, the adjusting screw being threadedly connected to the conveying cylinder.

[0016] A guide plate is fixedly connected to the side of the feeding cylinder. The guide plate has an L-shaped cross-section and is connected to the discharge plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. After the formed bottle caps are conveyed into the hopper in an orderly manner, it is only necessary to control the rotation of the conveyor plate. During the movement of the conveyor plate carrying a single bottle cap, it is pushed onto the support shaft by the pressure conveying structure, and then rolled by the rolling structure before being discharged. The process only requires a single motor to drive the coaxially fixed conveyor plate and rolling plate to rotate to complete the feeding, rolling and discharging. It is only necessary to control the rolling speed by controlling the motor speed.

[0019] 2. An inner support column with a threaded groove on the surface is connected to the support shaft. The inner support column and the toothed roller plate cooperate to form the bottle cap thread. The inner support column is threaded to the support shaft and locked with the fixing stud. The inner support column and toothed roller plate can be replaced according to the diameter of the bottle cap to be processed, so that bottle caps of various diameters can be processed.

[0020] 3. The internal rotating connection of the support shaft is a release rod. After the bottle cap thread is formed, the bottle cap is released by rotating the bottle cap. Then, the airflow channel connected to the release chamber generates pressure inside the bottle cap, so that the bottle cap thread connected to the inner support column can be unscrewed and released.

[0021] 4. During the rotation of the feeding plate, the outer end of the bottle cap is pressed by the pressure of the feeding plate and passes through the inner side of the feeding plate to be inserted into the support shaft. The adjustable feeding plate can adjust its position according to the length of the bottle cap, so that the bottle cap is pressed in at an appropriate length, thereby accurately positioning the forming position of the thread on the bottle cap. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the automatic tooth rolling structure and automatic conveying structure of the present invention;

[0024] Figure 3 This is an exploded view of the automatic tooth rolling structure and automatic conveying structure of the present invention;

[0025] Figure 4 This is a cross-sectional view of the toothed roller disc of the present invention;

[0026] Figure 5 This is a cross-sectional view of the internal support column of the present invention;

[0027] Figure 6 This is a cross-sectional view of the supporting shaft of the present invention;

[0028] Figure 7 This is a cross-sectional view of the release rod of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the fixing disk of the present invention;

[0030] Figure 9 This is a schematic diagram of the connecting plate of the present invention;

[0031] Figure 10 This is a cross-sectional view of the feed cylinder of the present invention;

[0032] In the diagram: 1. Frame; 2. Automatic conveying structure; 21. Hopper; 22. Conveying cylinder; 221. Adjusting screw; 222. Slide rod; 23. Conveying disc; 231. Through hole; 24. Guide plate; 25. Pressure plate; 251. Sliding sleeve; 3. Automatic gear rolling structure; 31. Gear rolling disc; 32. Support shaft; 321. Transmission gear; 322. Connecting thread; 323. Locking plate; 33. Fixed disc; 331. Locking groove; 332. Disengagement arc tooth plate 333. Release chamber; 34. Inner support column; 341. Threaded groove; 342. Retaining ring; 343. Fixing sleeve; 344. Fixing stud; 35. Shaft column; 36. Sealing ring; 37. Release rod; 371. Release gear; 372. Airflow channel; 38. Friction disc; 381. Spring; 4. Drive motor; 5. Connecting plate; 51. Threaded plate; 511. Mounting plate; 512. Mounting screw; 513. Threaded plate; 52. Arc-shaped toothed plate. Detailed Implementation

[0033] Example 1

[0034] like Figure 1-10 As shown, a fully automatic metal bottle cap rolling machine includes an automatic rolling structure 3 and an automatic conveying structure 2. The automatic conveying structure 2 includes a hopper 21, the bottom of which is connected to a conveying cylinder 22. A conveying disc 23 is rotatably connected inside the conveying cylinder 22. The conveying disc 23 has a through hole 231. A pressing structure is provided on the side of the conveying cylinder 22. The conveying disc 23 is coaxially and fixedly connected to the rolling disc 31 in the rolling structure. The side of the rolling disc 31 near the conveying disc 23 is connected to a ring-shaped array of support shafts 32. The rolling disc 31 is rotatably connected to a frame 1. A rolling plate 51 is connected to the frame 1. The support shafts 32 are rotatably connected to the rolling disc 31. A transmission gear 321 is coaxially fixedly connected to the support shaft 32. The transmission gear 321 intermittently engages with the arc-shaped toothed plate 52 fixed on the frame 1. The front end of the support shaft 32 is connected to the inner support column 34. The inner support column 34 is threadedly connected to the support shaft 32. The inner end of the inner support column 34 is fixedly connected to the retaining ring 342. The side of the inner support column 34 is provided with a threaded groove 341 that engages with the toothed plate 51. The toothed plate 51 is provided with a linear array of toothed threads 513. The inner end of the inner support column 34 is fixedly connected to the fixing sleeve 343. The fixing sleeve 343 is fixed to the fixing stud 344 on the support shaft 32. The front end of the inner support column 34 is an arc surface.

[0035] Bottle caps to be rolled are arranged by the existing arrangement equipment so that their openings face the support shaft 32 and enter the hopper 21 in the automatic conveying structure 2. The bottle caps enter the conveying cylinder 22 one by one from the bottom of the hopper 21. The conveying disc 23 inside the conveying cylinder 22 is coaxially and fixedly connected to the output shaft of the drive motor 4 through the shaft column 35. Driven by the drive motor 4, the conveying cylinder 22 rotates. When the through hole 231 on the conveying cylinder 22 is at the top, it carries a bottle cap and rotates. The pressing structure presses the bottle cap onto the support shaft 32. The bottle cap is then fitted onto the inner support column 34 threaded on the support shaft 32. When the support shaft 32 rotates with the rolling disc 31 and contacts the rolling plate 51, the transmission gear 321 fixedly connected to the support shaft 32 and the arc-shaped toothed plate 52... Contact causes the support shaft 32 to begin rotating relative to the roller plate 31. The bottle cap sleeved on the inner support column 34 rotates accordingly. The threaded groove 341 on the inner support column 34 and the roller thread 513 on the roller plate 51 cooperate with the threaded groove 341 on the inner support sleeve to press the bottle cap, forming threads on the bottle cap. The length of the roller thread 513 on the roller plate 51 is the length of one revolution of the threaded groove 341 on the inner support column 34, and the distance between adjacent roller threads 513 is equal to the pitch of the threaded groove 341. This allows the bottle cap to rotate one revolution after passing the roller plate 51, and the threads formed on the bottle cap are connected end to end. As the drive motor 4 rotates, the feed plate 23 continuously carries the bottle cap for roller machining, enabling continuous processing of bottle caps.

[0036] A retaining ring 342 is fixedly connected to the inner support column 34 to limit the insertion depth of the bottle cap. The toothed plate 51 cooperates with the inner support column 34 to precisely process the bottle cap. The inner support column 34 is connected to the connecting thread 322 on the support shaft 32 and is fixed with a fixing stud 344. The toothed plate 51 is fixed to the mounting plate 511 fixed on the side of the connecting plate 5 by the mounting screw 512. The position of the inner support column 34 and the toothed plate 51 can be adjusted to change the position of the thread forming on the bottle cap. The toothed plate 51 and the inner support column 34 can be replaced for the thread forming of different models of bottle caps.

[0037] Example 2

[0038] like Figure 1-10As shown, a fully automatic metal bottle cap rolling machine includes an automatic rolling structure 3 and an automatic conveying structure 2. The automatic conveying structure 2 includes a hopper 21, the bottom of which is connected to a conveying cylinder 22. A conveying disc 23 is rotatably connected inside the conveying cylinder 22. The conveying disc 23 has a through hole 231. A pressure conveying structure is provided on the side of the conveying cylinder 22. The conveying disc 23 is coaxially and fixedly connected to the rolling disc 31 in the rolling structure. The side of the rolling disc 31 near the conveying disc 23 is connected to a ring array of supporting rotating shafts 32. The rolling disc 31 is rotatably connected to a frame 1. A rolling plate 51 is connected to the frame 1. A release rod 37 is rotatably connected to the center of the supporting rotating shaft 32. The inner end of the 7 is fixedly connected to the release gear 371, which intermittently meshes with the release arc tooth plate 332 fixedly connected to the frame 1. The front end of the release rod 37 is radially fixedly connected to the friction disc 38. An airflow channel 372 is provided inside the release rod 37, and the inner end of the airflow channel 372 is intermittently connected to the release cavity 333. The friction disc 38 is inserted into the release rod 37 and is connected to the release rod 37 by a spring 381. The inner end of the support shaft 32 is fixedly connected to the locking plate 323, which is inserted into the locking groove 331 fixed on the frame 1. Both the locking plate 323 and the locking groove 331 are arc-shaped with the axis of the gear hobbing disc 31 as the center.

[0039] The drive motor 4 and the fixed plate 33 are respectively fixed on the frame 1. The output shaft of the drive motor 4 passes through the fixed plate 33 and is coaxially fixedly connected to the hobbing disc 31. The support shaft 32 is rotatably connected to the release rod 37. The release gear 371 is fixedly connected to the inner end of the release rod 37. The release gear 371 meshes with the release arc plate 332. When the hobbing disc 31 drives the support shaft 32 to move to the completed hobbing position, the locking plate 323 fixedly connected to the inner end of the support shaft 32 is located in the locking groove 331 provided on the fixed plate 33, so that the support shaft 32 and the hobbing disc 31 remain relatively fixed. Then the release gear 371 contacts the release arc plate 332. The continuous rotation of the hobbing disc 31 can make the release gear 371 rotate relative to the support shaft 32. The outer end of 37 is connected to the friction disc 38 via spring 381. The friction disc 38 is inserted into the release rod 37 and is radially fixed relative to the release rod 37. When the bottle cap is pressed in, the friction disc 38 is compressed by the pressure of the inner end of the bottle cap, causing the friction disc 38 to adhere to the inner end of the bottle cap. Therefore, when the release rod 37 rotates, the friction disc 38 can drive the bottle cap to rotate relative to the inner support column 34, causing the bottle cap to disengage from the threaded groove 341 on the inner support column 34. At the same time, the release rod 37 is connected to the release cavity 333 and the sealing ring 36 that rotates against the side of the release cavity 333 is inserted. The release cavity 333 is connected to a pressure pump. Under the action of the elastic potential energy of spring 381 and internal pressure, the threaded bottle cap pops out, completing the threading of the bottle cap.

[0040] After the threaded bottle cap detaches from the roller plate 51, until the bottle cap to be rolled enters the contact with the roller plate 51, the locking plate 323 remains in the locking groove 331, so that the inner support column 34 remains stationary relative to the roller plate 31 during the rotation of the roller plate 31. When the next bottle cap to be rolled contacts the roller plate 51, the threaded groove 341 on the inner support column 34 and the rolling thread 513 on the roller plate 51 engage again, so as to prevent the inner support column 34 from rotating and causing misalignment when the threaded groove 341 and the rolling thread 513 engage again, thus preventing the engagement from failing.

[0041] Example 3

[0042] like Figure 1-10 As shown, a fully automatic metal bottle cap rolling machine includes an automatic rolling structure 3 and an automatic conveying structure 2. The automatic conveying structure 2 includes a hopper 21, the bottom of which is connected to a conveying cylinder 22. A conveying disc 23 is rotatably connected inside the conveying cylinder 22. The conveying disc 23 has a through hole 231. A pressure conveying structure is provided on the side of the conveying cylinder 22. The conveying disc 23 is coaxially and fixedly connected to the rolling disc 31 in the rolling structure. The side of the rolling disc 31 near the conveying disc 23 is connected to a support shaft 32 of a ring array. The rolling disc 31 is rotatably connected to the frame 1. A toothed roller 51 is connected to the frame 1. The pressing and feeding structure includes a pressing plate 25 connected to the side of the feeding cylinder 22. The pressing plate 25 is spiral and is horizontally aligned with the through hole 231 on the feeding disc 23. The pressing plate 25 is slidably connected to the slide rod 222 fixed on the feeding cylinder 22. An adjusting screw 221 is rotatably connected to the pressing plate 25 and is threadedly connected to the feeding cylinder 22. A guide plate 24 is fixedly connected to the side of the feeding cylinder 22. The guide plate 24 has an L-shaped cross section and is connected to the discharge plate.

[0043] During feeding, the bottle cap is positioned at the through hole 231 on the feeding disc 23, with the outer side of the bottle cap abutting against the inside of the feeding cylinder 22. A spiral-shaped compression plate is slidably connected inside the feeding cylinder 22. After the outer end of the bottle cap contacts the compression plate, the feeding depth increases with the rotation of the feeding disc 23, eventually causing the bottle cap to be inserted into the inner support column 34. A flat ring plate perpendicular to the ground is also connected to the tail of the compression plate, ensuring that the outer end of the bottle cap is subjected to pressure during the tooth rolling process, preventing the bottle cap from axially sliding relative to the inner support column 34 during the tooth rolling process. The movement causes the thread forming position to shift; the pressure plate 25 is rotatably connected to the adjusting screw 221, which is threadedly connected to the conveying cylinder 22. By rotating the adjusting screw 221, the sliding sleeve 251 slides relative to the sliding rod 222 fixed in the conveying cylinder 22, and the axial position of the pressure plate 25 relative to the conveying cylinder 22 changes, so that pressure can be applied to bottle caps of different lengths; when the bottle cap is ejected after the thread rolling is completed, it is blocked by the guide plate 24, so that the ejected bottle cap is discharged along the guide plate 24 and the discharge plate.

Claims

1. A fully automatic metal bottle cap thread rolling machine, characterized in that, The automatic conveying structure (2) includes an automatic tooth rolling structure (3) and an automatic conveying structure (2). The automatic conveying structure (2) includes a hopper (21). The bottom of the hopper (21) is connected to a conveying cylinder (22). The conveying cylinder (22) is rotatably connected to a conveying disc (23). A through hole (231) is provided on the conveying disc (23). A pressure conveying structure is provided on the side of the conveying cylinder (22). The conveying disc (23) is coaxially fixedly connected to the tooth rolling disc (31) in the tooth rolling structure. The tooth rolling disc (31) is connected to the support shaft (32) of the ring array on the side near the conveying disc (23). The tooth rolling disc (31) is rotatably connected to the frame (1). A tooth rolling plate (51) is connected to the frame (1). The center of the support shaft (32) is rotatably connected to the release rod (37), the inner end of the release rod (37) is fixedly connected to the release gear (371), the release gear (371) intermittently meshes with the release arc tooth plate (332) fixedly connected on the frame (1), and the front end of the release rod (37) is radially fixedly connected to the friction disc (38). An airflow channel (372) is provided inside the release rod (37). The inner end of the airflow channel (372) is intermittently connected to the release chamber (333). The friction disc (38) is inserted into the release rod (37). The friction disc (38) is connected to the release rod (37) through a spring (381). The inner end of the support shaft (32) is fixedly connected to the locking plate (323), and the locking plate (323) is inserted into the locking groove (331) fixed on the frame (1). Both the locking plate (323) and the locking groove (331) are arc-shaped with the axis of the toothed disc (31) as the center. The pressing structure includes a pressing plate (25) connected to the side of the conveying cylinder (22). The pressing plate (25) is spiral-shaped and is horizontally aligned with the through hole (231) on the conveying disc (23).

2. The fully automatic metal bottle cap rolling machine according to claim 1, characterized in that, The support shaft (32) is rotatably connected to the toothed disc (31). A transmission gear (321) is coaxially fixedly connected to the support shaft (32). The transmission gear (321) is intermittently engaged with the arc-shaped toothed plate (52) fixed on the frame (1). The front end of the support shaft (32) is connected to the inner support column (34).

3. The fully automatic metal bottle cap rolling machine according to claim 2, characterized in that, The inner support column (34) is threaded to the support shaft (32), and the inner end of the inner support column (34) is fixedly connected to the retaining ring (342). The inner support column (34) has a threaded groove (341) that mates with the toothed roller plate (51) on its side. The toothed roller plate (51) has a linear array of toothed roller threads (513).

4. The fully automatic metal bottle cap rolling machine according to claim 3, characterized in that, The inner end of the inner support column (34) is fixedly connected to the fixing sleeve (343), and the fixing sleeve (343) is fixed to the fixing stud (344) on the support shaft (32). The front end of the inner support column (34) is an arc surface.

5. The fully automatic metal bottle cap rolling machine according to claim 1, characterized in that, The pressure plate (25) is slidably connected to the slide rod (222) fixed on the feed cylinder (22), and the adjusting screw (221) is rotatably connected to the pressure plate (25). The adjusting screw (221) is threadedly connected to the feed cylinder (22).

6. The fully automatic metal bottle cap rolling machine according to claim 5, characterized in that, The feed cylinder (22) is fixedly connected to a guide plate (24) on its side. The guide plate (24) has an L-shaped cross section and is connected to a discharge plate.

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