Bottle cap forming device

Abstract

The present invention relates to the technical field of bottle cap forming, specifically to a bottle cap forming device, which mainly comprises: a base, a motor is fixedly installed on the bottom surface of the base, a rotating shaft is rotated through the top surface of the base through a first bearing seat, a turntable 1 and a turntable 2 are fixedly installed on the outer wall of the rotating shaft, a cap removal mechanism is arranged above the turntable 1, and a blow-off mechanism is arranged above the turntable 1. After the bottle cap is hot pressed out, the punch die drives the formed bottle cap to move out of the mold and rotate together, the adjustment plate moves up when it contacts the arc strip, drives the L-shaped plate and the moving frame to move up, and the formed bottle cap is clamped and fixed by the T-shaped block, the rotating rod and the arc plate clamping plate, and at the same time, the rotating plate rolls on the inner wall of the fixed frame to rotate, thereby driving the clamping plate and the bottle cap to rotate downward, and the bottle cap rotates out of the outer wall of the die, and when the adjustment plate is separated from the arc strip, the elastic member 2 pushes the moving frame to return to its original position, and the bottle cap falls off, so that the thread groove inside the bottle cap is not easily damaged, thereby ensuring the sealing between the bottle cap and the bottle.

Description

Technical Field

[0001] The invention relates to the technical field of bottle cap molding, in particular to a bottle cap molding device. Background Art

[0002] Plastic caps are a common packaging form for bottles, cans, and barrels, especially in the fields of beverages, chemicals, and medicine. According to their uses, they can be divided into breathable plastic caps and non-breathable plastic caps. Plastic caps are generally made of polyolefins as the main raw material and are processed by injection molding, hot pressing and other processes. Plastic anti-theft caps require that they are easy for consumers to open, but also need to avoid leakage problems caused by poor sealing performance.

[0003] The existing bottle cap forming device usually directly pushes the bottle cap out of the mold after hot pressing the bottle cap. However, this operation mode has some significant problems. Since the bottle cap mold has a threaded structure inside, these threads are engaged with the thread grooves on the inner wall of the bottle cap. In this case, if the bottle cap is directly pushed out, the thread grooves are easily damaged. Once the thread grooves on the inner wall of the bottle cap are damaged, it will affect the close fit between the bottle cap and the bottle, thereby causing the sealing performance of the bottle cap to deteriorate.

[0004] Therefore, a bottle cap forming device is proposed. Summary of the invention

[0005] The object of the present invention is to provide a bottle cap forming device to solve the problem proposed in the above background technology that if the bottle cap is directly pushed out, the thread groove is easily damaged. Once the thread groove on the inner wall of the bottle cap is damaged, it will affect the close fit between it and the bottle, thereby causing the sealing performance of the bottle cap to decrease.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A bottle cap forming device, comprising: a base, a support leg is fixedly mounted on the bottom surface of the base, a motor is fixedly mounted on the bottom surface of the base, a rotating shaft is rotatably penetrated through the top surface of the base through a first bearing seat, the lower end of the rotating shaft is fixedly connected to the output end of the motor, and a rotating disk 1 and a rotating disk 2 are fixedly mounted on the outer wall of the rotating shaft;

[0008] A capping mechanism is arranged above the first rotating disk, and the capping mechanism comprises a rotating plate arranged above the first rotating disk, an arc plate is arranged below the rotating plate, and a moving frame is arranged above the rotating plate for demoulding the bottle cap;

[0009] The blowing mechanism is arranged above the turntable 1, and the blowing mechanism includes an air bag arranged above the turntable 1, and a nozzle is arranged below the air bag for blowing away the debris adhered to the mold.

[0010] Preferably, the turntable 2 is located above the turntable 1, and a limiting sleeve is fixedly installed on the top surface of the turntable 2. A punch rod is slidably installed on the inner wall of the limiting sleeve, and a limiting strip is fixedly installed on the outer wall of the punch rod. The outer wall of the limiting strip is slidably connected to the inner wall of the limiting sleeve, and a die is fixedly installed on the lower end of the punch rod.

[0011] Preferably, a limit frame is fixedly installed on the outer wall of the punch rod, a round tube is slidably installed on the inner wall of the limit frame, a support plate is fixedly installed on the outer wall of the round tube, the lower end of the support plate is fixedly connected to the top surface of the base, a mold is fixedly installed on the top surface of the turntable, and a conveying device and an injection molding mechanism are provided on the top surface of the base.

[0012] Preferably, the inner wall of the rotating plate is rotatably connected to the outer wall of the punch rod through a second bearing seat, and two through grooves are formed on the top surface of the rotating plate. The inner walls of the two through grooves are respectively hinged with rotating rods. There are two arc-shaped plates, and the lower ends of the two rotating rods are respectively hinged to the outer walls of the two arc-shaped plates.

[0013] Preferably, the inner walls of the two arc-shaped plates are respectively provided with movable grooves, two limit rods are respectively fixedly installed on the inner walls of the two movable grooves, clamping plates are respectively slidably installed on the inner walls of the two movable grooves, the inner walls of the two clamping plates are respectively slidably connected to the outer walls of multiple limit rods, and elastic parts are respectively slidably installed on the outer walls of the multiple limit rods, and the two ends of the multiple elastic parts are respectively fixedly connected to the lower inner walls of the two movable grooves and the bottom surfaces of the two clamping plates.

[0014] Preferably, three fixed columns are fixedly installed on the top surface of the rotating plate, and a movable frame is slidably installed on the outer walls of the three fixed columns. Circular plates are fixedly installed on the upper ends of the three fixed columns, and two elastic parts are slidably installed on the outer walls of the three fixed columns, and the two ends of the three elastic parts are fixedly connected to the top surface of the movable frame and the bottom surfaces of the three circular plates.

[0015] Preferably, two T-shaped grooves are provided on the bottom surface of the movable frame, and T-shaped blocks are slidably mounted on the inner walls of the two T-shaped grooves respectively, and the inner walls of the two T-shaped blocks are hinged to the upper ends of the two rotating rods respectively.

[0016] Preferably, a sliding sleeve is fixedly installed on the side of the limit frame, an L-shaped plate is slidably installed on the inner wall of the sliding sleeve, the side of one end of the L-shaped plate is slidably connected to the bottom surface of the movable frame, an adjustment plate is fixedly installed on the side of the L-shaped plate, a fixed frame is fixedly installed on the side of the support plate, the outer wall of the rotating plate is rollingly connected to the inner wall of the fixed frame, an arc strip is fixedly installed on the top surface of one side of the fixed frame, and the bottom surface of the adjustment plate is slidably connected to the top surface of the fixed frame and the top surface of the arc strip.

[0017] Preferably, a placement groove is fixedly installed on the top surface of one side of the fixed frame, the inner wall of the placement groove is fixedly connected to the outer wall of the airbag, the airbag protrudes from the placement groove, and an air intake pipe is fixedly installed on the outer wall of the airbag. The other end of the air intake pipe is fixedly passed through the inner wall of the placement groove and extends to the outside of the fixed frame, and the outer wall of the airbag is slidably connected to the bottom surface of the adjustment plate.

[0018] Preferably, an air outlet pipe is fixedly installed through the bottom surface of the airbag, the lower end of the air outlet pipe is fixedly penetrated through the inner wall of the placement groove and extends to the bottom of the fixed frame, and the lower end of the air outlet pipe is fixedly connected to the upper end of the nozzle.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention drives the die to cooperate with the mold through the punch rod. After the bottle cap is hot pressed out, the punch rod and the die drive the formed bottle cap to move out of the mold and rotate together, drive the limit frame and the sliding sleeve to move, drive the L-shaped plate and the adjusting plate to move, and when the adjusting plate contacts the arc strip, it moves upward, drives the L-shaped plate and the moving frame to move upward, the moving frame drives the T-shaped block to move in the T-shaped groove, the T-shaped block drives the rotating rod and the arc plate to rotate, the arc plate drives the clamping plate to clamp and fix the formed bottle cap, and at the same time the rotating plate rolls on the inner wall of the fixed frame The bottle cap is rotated by itself, and the clamping plate is driven to rotate through the fixed column, the moving frame, the rotating rod and the arc plate, and the clamping plate drives the formed bottle cap to rotate, and the clamping plate drives the bottle cap to rotate and move downward on the outer wall of the die and squeeze the elastic member 1, so that the bottle cap is rotated and moved out of the outer wall of the die. When the adjusting plate is separated from the arc strip, the elastic member 2 pushes the moving frame to return to its original position, and the clamping plate no longer clamps the formed bottle cap, and the bottle cap falls, so that the thread groove inside the bottle cap is not easily damaged, thereby ensuring the sealing between the bottle cap and the bottle;

[0021] When the adjusting plate is separated from the arc strip and slides on the fixed frame, it moves to the airbag to squeeze the airbag. The airbag is squeezed to discharge the internal gas from the nozzle through the outlet pipe. The gas discharged from the nozzle is sprayed to the die, so that the threaded structure on the die is not easy to retain debris, and these debris are not easy to affect the subsequent bottle caps, thereby ensuring the quality of bottle cap molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the back side of the three-dimensional structure of the present invention;

[0024] Figure 3 For the present invention Figure 1 Enlarged view of point A in the middle;

[0025] Figure 4 It is an exploded view of the three-dimensional structure of the die of the present invention;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the transfer plate of the present invention;

[0027] Figure 6 It is a cross-sectional schematic diagram of the three-dimensional structure of the transfer plate of the present invention;

[0028] Figure 7 For the present invention Figure 5 Enlarged view of point B in the middle;

[0029] Figure 8 It is a cross-sectional schematic diagram of the three-dimensional structure of the fixing frame of the present invention;

[0030] Fig. 9 It is a schematic diagram of the bottle cap molding state of the present invention.

[0031] In the figure:

[0032] 1. Base; 101. Support legs; 102. Motor; 103. Rotating shaft; 104. Turntable 1; 105. Turntable 2; 106. Limit sleeve; 107. Punch rod; 108. Limit strip; 109. Limit frame; 110. Round tube; 111. Support plate; 112. Mold 1; 113. Press mold;

[0033] 2. Decapping mechanism; 201. Rotating plate; 202. Through slot; 203. Rotating rod; 204. Arc plate; 205. Moving slot; 206. Limiting rod; 207. Clamping plate; 208. Elastic member 1; 209. Fixed column; 210. Moving frame; 211. Circular plate; 212. Elastic member 2; 213. T-slot; 214. T-block; 215. L-plate; 216. Adjusting plate; 217. Fixed frame; 218. Arc strip; 219. Sliding sleeve;

[0034] 3. Blowing mechanism; 301. Placement slot; 302. Air bag; 303. Air inlet pipe; 304. Air outlet pipe; 305. Spray nozzle;

[0035] 4. Conveying device; 5. Injection molding mechanism. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0038] like Figure 1-9 As shown, the present application provides a bottle cap forming device, comprising: a base 1, a support leg 101 is fixedly installed on the bottom surface of the base 1, a motor 102 is fixedly installed on the bottom surface of the base 1, a rotating shaft 103 is rotatably penetrated through the top surface of the base 1 through a first bearing seat, the lower end of the rotating shaft 103 is fixedly connected to the output end of the motor 102, and a rotating disk 104 and a rotating disk 2 105 are fixedly installed on the outer wall of the rotating shaft 103;

[0039] Specifically, Figure 1-9 As shown, turntable 2 105 is located above turntable 104, and a limiting sleeve 106 is fixedly installed on the top surface of turntable 2 105. A punch rod 107 is slidably installed on the inner wall of the limiting sleeve 106, and a limiting strip 108 is fixedly installed on the outer wall of the punch rod 107. The outer wall of the limiting strip 108 is slidably connected to the inner wall of the limiting sleeve 106, and a die 113 is fixedly installed on the lower end of the punch rod 107.

[0040] In this embodiment: by setting the limiting sleeve 106 and the limiting strip 108, the punch rod 107 can be limited, so that the punch rod 107 moves up and down more smoothly, thereby driving the die 113 to move up and down more smoothly.

[0041] Specifically, Figure 1-9 As shown, a limit frame 109 is fixedly installed on the outer wall of the punch rod 107, a round tube 110 is slidably installed on the inner wall of the limit frame 109, a support plate 111 is fixedly installed on the outer wall of the round tube 110, the lower end of the support plate 111 is fixedly connected to the top surface of the base 1, a mold 112 is fixedly installed on the top surface of the turntable 104, and a conveying device 4 and an injection molding mechanism 5 are provided on the top surface of the base 1.

[0042] In this embodiment, the conveying device 4 is provided to convey the formed bottle caps, the injection molding mechanism 5 is provided to perform injection molding inside the mold 112, and the circular tube 110 and the limiting frame 109 are provided to enable the punch 107 and the die 113 to move up and down.

[0043] The capping mechanism 2 is arranged above the turntable 104, and the capping mechanism 2 includes a rotating plate 201 arranged above the turntable 104, an arc plate 204 is arranged below the rotating plate 201, and a moving frame 210 is arranged above the rotating plate 201 for demoulding the bottle cap;

[0044] Specifically, Figure 1-9 As shown, the inner wall of the rotating plate 201 is rotatably connected to the outer wall of the punch rod 107 through the second bearing seat, and two through grooves 202 are formed through the top surface of the rotating plate 201. The inner walls of the two through grooves 202 are respectively hinged with rotating rods 203. There are two arc plates 204, and the lower ends of the two rotating rods 203 are respectively hinged to the outer walls of the two arc plates 204.

[0045] In this embodiment, the rotating rod 203 can drive the arc plate 204 to rotate at a certain angle, and the rotating plate 201 can drive the rotating rod 203 and the arc plate 204 to rotate.

[0046] Specifically, Figure 1-9 As shown, the inner walls of the two arc-shaped plates 204 are respectively provided with movable grooves 205, and two limit rods 206 are respectively fixedly installed on the inner walls of the two movable grooves 205. The inner walls of the two movable grooves 205 are respectively slidably installed with clamping plates 207. The inner walls of the two clamping plates 207 are respectively slidably connected to the outer walls of multiple limit rods 206, and the outer walls of multiple limit rods 206 are respectively slidably installed with elastic parts 208, and the two ends of the multiple elastic parts 208 are respectively fixedly connected to the inner walls of the lower ends of the two movable grooves 205 and the bottom surfaces of the two clamping plates 207.

[0047] In this embodiment: the clamping plate 207 is limited by the setting of the limiting rod 206, and the clamping plate 207 can move on the limiting rod 206. The set elastic member 208 applies elastic force to the clamping plate 207, so that the clamping plate 207 can return to its original position.

[0048] Specifically, Figure 1-9 As shown, three fixed columns 209 are fixedly installed on the top surface of the rotating plate 201, and a moving frame 210 is slidably installed on the outer walls of the three fixed columns 209. Circular plates 211 are fixedly installed on the upper ends of the three fixed columns 209, and elastic members 212 are slidably installed on the outer walls of the three fixed columns 209, and the two ends of the three elastic members 212 are fixedly connected to the top surface of the moving frame 210 and the bottom surfaces of the three circular plates 211 respectively.

[0049] In this embodiment: through the setting of the second elastic member 212, an elastic force is applied to the moving frame 210, so that the moving frame 210 has a continuous downward elastic force. At the same time, the fixed column 209 limits the moving frame 210 to ensure that the moving frame 210 can rotate with the rotating plate 201.

[0050] Specifically, Figure 1-9 As shown, two T-shaped slots 213 are provided on the bottom surface of the moving frame 210 , and T-shaped blocks 214 are slidably mounted on the inner walls of the two T-shaped slots 213 , respectively. The inner walls of the two T-shaped blocks 214 are hinged to the upper ends of the two rotating rods 203 , respectively.

[0051] In this embodiment, the T-shaped block 214 can be limited by the provision of the T-shaped slot 213, so that the T-shaped block 214 can slide inside the T-shaped slot 213. When the T-shaped block 214 slides, it drives the rotating rod 203 to rotate.

[0052] Specifically, Figure 1-9As shown, a sliding sleeve 219 is fixedly installed on the side of the limit frame 109, and an L-shaped plate 215 is slidably installed on the inner wall of the sliding sleeve 219. The side of one end of the L-shaped plate 215 is slidably connected to the bottom surface of the movable frame 210, an adjusting plate 216 is fixedly installed on the side of the L-shaped plate 215, a fixed frame 217 is fixedly installed on the side of the support plate 111, the outer wall of the rotating plate 201 is rollingly connected to the inner wall of the fixed frame 217, an arc strip 218 is fixedly installed on the top surface of one side of the fixed frame 217, and the bottom surface of the adjusting plate 216 is slidably connected to the top surface of the fixed frame 217 and the top surface of the arc strip 218.

[0053] In this embodiment: when the L-shaped plate 215 moves onto the arc-shaped bar 218, the L-shaped plate 215 moves upward and drives the moving frame 210 to move upward. When the moving frame 210 moves upward, the arc-shaped plate 204 is driven to rotate through the T-shaped block 214 and the rotating rod 203. The arc-shaped plate 204 drives the clamping plate 207 to clamp the bottle cap. At the same time, the rotating plate 201 rolls and rotates on the inner wall of the fixed frame 217, driving the bottle cap to rotate and move out of the die 113.

[0054] The blowing mechanism 3 is arranged above the turntable 104. The blowing mechanism 3 includes an air bag 302 arranged above the turntable 104. A nozzle 305 is arranged below the air bag 302 for blowing away the debris adhered to the mold.

[0055] Specifically, Figure 1-9 As shown, a placement groove 301 is fixedly installed on the top surface of one side of the fixed frame 217, the inner wall of the placement groove 301 is fixedly connected to the outer wall of the airbag 302, the airbag 302 protrudes out of the placement groove 301, and an air intake pipe 303 is fixedly installed on the outer wall of the airbag 302. The other end of the air intake pipe 303 is fixedly passed through the inner wall of the placement groove 301 and extends to the outside of the fixed frame 217. The outer wall of the airbag 302 is slidably connected to the bottom surface of the adjustment plate 216.

[0056] In this embodiment, the airbag 302 is squeezed by the adjustment plate 216 , and the airbag 302 contracts to exhaust air. When the adjustment plate 216 is away from the airbag 302 , the airbag 302 inhales and expands through the air inlet pipe 303 .

[0057] Specifically, Figure 1-9 As shown, an air outlet pipe 304 is fixedly installed on the bottom surface of the airbag 302, and the lower end of the air outlet pipe 304 is fixedly installed through the inner wall of the placement groove 301 and extends to the bottom of the fixed frame 217. The lower end of the air outlet pipe 304 is fixedly connected to the upper end of the nozzle 305, and a one-way valve is installed on both the air outlet pipe 304 and the air inlet pipe 303.

[0058] In this embodiment, the airbag 302 contracts, and gas is ejected from the nozzle 305 through the gas outlet pipe 304 . The gas is ejected toward the die 113 to blow away the debris on the die 113 .

[0059] The specific scheme is as follows: the motor 102 is turned on to drive the rotating shaft 103, the rotating disk 104 and the rotating disk 2 105 to rotate, and the punch 107 and the die 113 are driven to rotate through the limit sleeve 106. Under the action of the limit frame 109 and the round tube 110, the punch 107 and the die 113 are moved up and down when rotating, and the inside of the mold 112 is injected through the injection molding mechanism 5. The punch 107 drives the die 113 to cooperate with the mold 112. After the bottle cap is hot-pressed, the punch 107 and the die 113 drive the formed bottle cap to move out of the mold 1. 112 rotates, driving the limit frame 109 and the sliding sleeve 219 to move, driving the L-shaped plate 215 and the adjusting plate 216 to move, when the adjusting plate 216 contacts the arc strip 218, it moves upward, driving the L-shaped plate 215 and the moving frame 210 to move upward, the moving frame 210 drives the T-shaped block 214 to move in the T-shaped groove 213, the T-shaped block 214 drives the rotating rod 203 and the arc plate 204 to rotate, the arc plate 204 drives the clamping plate 207 to clamp and fix the formed bottle cap, and at the same time the rotating plate 201 rolls on the inner wall of the fixed frame 217 to rotate. The bottle cap is rotated by itself, and the clamping plate 207 is driven to rotate through the fixed column 209, the moving frame 210, the rotating rod 203 and the arc plate 204. The clamping plate 207 drives the formed bottle cap to rotate, and the clamping plate 207 drives the bottle cap to rotate and move downward on the outer wall of the die 113 and squeeze the elastic member 1 208, so that the bottle cap is rotated and moved out of the outer wall of the die 113. When the adjustment plate 216 is separated from the arc strip 218, the elastic member 212 pushes the moving frame 210 to return to its original position, and the clamping plate 207 no longer clamps the formed bottle cap, and the bottle cap falls to the conveying device 4. The bottle cap is conveyed on the upper surface, so that the thread groove inside the bottle cap is not easily damaged, thereby ensuring the sealing between the bottle cap and the bottle, and when the adjusting plate 216 is separated from the arc strip 218 and slides on the fixing frame 217, it moves to the airbag 302 to squeeze the airbag 302. The airbag 302 is squeezed to discharge the internal gas from the nozzle 305 through the outlet pipe 304. The gas discharged from the nozzle 305 is sprayed toward the die 113, so that the thread structure on the die 113 is not easy to retain debris, and these debris are not easy to affect the subsequent bottle caps, thereby ensuring the quality of bottle cap molding.

[0060] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary; within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0061] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bottle cap forming device, comprising: A base (1), wherein a support leg (101) is fixedly mounted on the bottom surface of the base (1), a motor (102) is fixedly mounted on the bottom surface of the base (1), a rotating shaft (103) is rotatably penetrated through the top surface of the base (1) via a first bearing seat, the lower end of the rotating shaft (103) is fixedly connected to the output end of the motor (102), and a rotating disk 1 (104) and a rotating disk 2 (105) are fixedly mounted on the outer wall of the rotating shaft (103), characterized in that: a cap-removing mechanism (2) disposed above the first rotating disk (104), the cap-removing mechanism (2) comprising a rotating plate (201) disposed above the first rotating disk (104), an arc-shaped plate (204) disposed below the rotating plate (201), and a movable frame (210) disposed above the rotating plate (201) for demoulding the bottle cap; A blowing mechanism (3) is arranged above the first turntable (104), the blowing mechanism (3) comprising an air bag (302) arranged above the first turntable (104), a nozzle (305) being arranged below the air bag (302) for blowing away debris adhering to the mold; The second turntable (105) is located above the first turntable (104); a limit sleeve (106) is fixedly installed on the top surface of the second turntable (105); a punch (107) is slidably installed on the inner wall of the limit sleeve (106); a limit strip (108) is fixedly installed on the outer wall of the punch (107); the outer wall of the limit strip (108) is slidably connected to the inner wall of the limit sleeve (106); a die (113) is fixedly installed on the lower end of the punch (107); a limit frame (109) is fixedly installed on the outer wall of the punch (107); a round tube (110) is slidably installed on the inner wall of the limit frame (109); a support plate (111) is fixedly installed on the outer wall of the round tube (110); the lower end of the support plate (111) is fixedly connected to the top surface of the base (1). The top surface of the rotating disk (104) is fixedly mounted with a mold (112), the top surface of the base (1) is provided with a conveying device (4) and an injection molding mechanism (5), the inner wall of the rotating plate (201) is rotatably connected to the outer wall of the punch rod (107) via a second bearing seat, the top surface of the rotating plate (201) is provided with two through grooves (202), the inner walls of the two through grooves (202) are respectively hinged with a rotating rod (203), the number of the arc-shaped plates (204) is two, the lower ends of the two rotating rods (203) are respectively hinged with the outer walls of the two arc-shaped plates (204), the inner walls of the two arc-shaped plates (204) are respectively provided with a moving groove (205), and the inner walls of the two moving grooves (205) are respectively fixedly mounted with two limit rods (206) The inner walls of the two movable grooves (205) are respectively slidably mounted with clamping plates (207), the inner walls of the two clamping plates (207) are respectively slidably connected to the outer walls of the plurality of limit rods (206), the outer walls of the plurality of limit rods (206) are respectively slidably mounted with elastic members (208), the two ends of the plurality of elastic members (208) are respectively fixedly connected to the inner walls of the lower ends of the two movable grooves (205) and the bottom surfaces of the two clamping plates (207), the top surface of the rotating plate (201) is fixedly mounted with three fixed columns (209), the outer walls of the three fixed columns (209) are slidably mounted with movable frames (210), the upper ends of the three fixed columns (209) are respectively fixedly mounted with circular plates (211), the outer walls of the three fixed columns (209) are respectively slidably mounted There are two elastic members (212), the two ends of the three elastic members (212) are respectively fixedly connected to the top surface of the moving frame (210) and the bottom surfaces of the three circular plates (211), the bottom surface of the moving frame (210) is provided with two T-shaped grooves (213), the inner walls of the two T-shaped grooves (213) are respectively slidably mounted with T-shaped blocks (214), the inner walls of the two T-shaped blocks (214) are respectively hinged to the upper ends of the two rotating rods (203), a sliding sleeve (219) is fixedly mounted on the side surface of the limit frame (109), an L-shaped plate (215) is slidably mounted on the inner wall of the sliding sleeve (219), one end side surface of the L-shaped plate (215) is slidably connected to the bottom surface of the moving frame (210), and an adjustment plate (216) is fixedly mounted on the side surface of the L-shaped plate (215),A fixing frame (217) is fixedly mounted on the side of the support plate (111), the outer wall of the rotating plate (201) is rollingly connected to the inner wall of the fixing frame (217), an arc-shaped strip (218) is fixedly mounted on the top surface of one side of the fixing frame (217), and the bottom surface of the adjusting plate (216) is slidably connected to the top surface of the fixing frame (217) and the top surface of the arc-shaped strip (218).

2. A bottle cap forming device according to claim 1, characterized in that: A placement groove (301) is fixedly installed on the top surface of one side of the fixing frame (217); the inner wall of the placement groove (301) is fixedly connected to the outer wall of the airbag (302); the airbag (302) protrudes out of the placement groove (301); an air intake pipe (303) is fixedly installed through the outer wall of the airbag (302); the other end of the air intake pipe (303) is fixedly penetrated through the inner wall of the placement groove (301) and extends to the outside of the fixing frame (217); the outer wall of the airbag (302) is slidably connected to the bottom surface of the adjustment plate (216).

3. A bottle cap forming device according to claim 2, characterized in that: An air outlet pipe (304) is fixedly installed through the bottom surface of the air bag (302), the lower end of the air outlet pipe (304) is fixedly penetrated through the inner wall of the placement groove (301) and extends to the bottom of the fixed frame (217), and the lower end of the air outlet pipe (304) is fixedly connected to the upper end of the nozzle (305).

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