A cover bucket structure of a preform tipping machine with a blocking mechanism and a method of using the same

Abstract

The present invention relates to the technical field of preform tipping buckets, and discloses a cover bucket structure of a preform tipping machine with a blocking mechanism and a use method thereof, comprising a mounting bracket, a motor fixedly connected to a side wall of the mounting bracket, and a driving column fixedly connected to an output shaft of the motor. When the preforms fall from top to bottom in the cover bucket, the falling preforms contact the top of a rotating square plate, and the weight of the preforms forces the rotating square plate to rotate downward with a torsion spring as the center. At this time, some of the preforms will fall to the bottom of the cover bucket. As the material at the bottom of the cover bucket increases, the preforms at the bottom of the rotating plate will contact the bottom of the rotating square plate, thereby limiting the rotation of the rotating square plate. At this time, excess preforms will stay on the top of the rotating plate, and the rotating plate provides most of the supporting force for the preforms above itself, dividing the preforms in the cover bucket into two layers, thereby preventing the bottom from being subjected to excessive pressure and causing the bottom preforms to sag.

Description

Technical Field

[0001] The present invention relates to the technical field of preform tipping equipment, in particular to a cover bucket structure of a preform tipping machine with a blocking mechanism and a use method thereof. Background Art

[0002] In automated bottling lines like those for bottled water, preforms and caps, among other accessories, need to be continuously supplied. These components are the core components of a preform tipping machine, typically comprised of multiple tipping units that hold and flip the preforms. The shape and size of the tipping units are designed based on the preform's specifications, ensuring stable placement and smooth flipping.

[0003] Among them, most of the above-mentioned bottle blanks are relatively thin plastic products. When a large number of bottle blanks are filled into the cover hopper, the bottle blanks at the bottom will be dented due to the pressure of the top bottle blanks, resulting in incomplete bottle blanks and affecting the subsequent use of the bottle blanks. In response to the above problems, the following solutions are proposed. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a cover bucket structure of a preform tipping machine with a blocking mechanism, comprising a mounting bracket, a motor fixedly connected to a side wall of the mounting bracket, a drive column fixedly connected to an output shaft of the motor, and a cover bucket fixedly connected to an outer wall of the drive column;

[0005] The blocking mechanism includes a rotating plate, a rotating frame for limiting the rotation of the rotating plate, a limit plate, and a limiting component for controlling the feeding and discharging of the rotating plate;

[0006] The side wall of the rotating plate is rotatably connected to the inner wall of the rotating frame. A limiting plate is fixedly connected to the inner wall of the rotating frame. The top of the limiting plate contacts the bottom of the rotating plate.

[0007] Preferably, the limiting component includes five through-hole slots opened on the top of the rotating plate, a number of right-angle slots are opened at the bottom of the five through-hole slots, a rotating square plate is rotatably connected to the inner walls of the several right-angle slots, and mounting holes are opened at both ends of the rotating square plate.

[0008] Preferably, the limiting assembly further comprises a torsion spring 1 fixedly connected to the inner wall of the mounting hole, one end of the torsion spring 1 away from the mounting hole is fixedly connected to the inner wall of the right-angle groove, and a discharge assembly is fixedly connected to the side wall of the cover bucket. Before use, the mounting bracket is installed in the desired position, and when the external conveyor belt conveys the preform to the inside of the cover bucket, the preform falls from top to bottom inside the cover bucket, and when the falling preform contacts the top of the rotating square plate, the weight of the preform will force the rotating square plate to rotate downward with the torsion spring 1 as the center, presenting the following Figure 5 In the middle G state, part of the bottle blank will fall to the bottom of the cover.

[0009] Preferably, the discharge assembly includes an air pressure box connected to the side wall of the cover bucket, and five air pressure contraction tubes are connected to the side of the air pressure box close to the inner wall of the cover bucket. One end of the five air pressure contraction tubes is fixedly connected to the top of the rotating plate. As the material at the bottom of the cover bucket increases, the bottle blanks at the bottom of the rotating plate will hit the bottom of the rotating square plate, thereby limiting the rotation of the rotating square plate, and the excess bottle blanks will stay at the top of the rotating plate, presenting a Figure 5 In the middle H state, during this process, the excess bottle blanks will stay on the top of the rotating plate, and the rotating plate provides most of the supporting force for the bottle blanks above it. Through the application of the above components, the bottle blanks inside the cover bucket are divided into two layers to avoid excessive pressure on the bottom, which will cause the bottom bottle blanks to sag.

[0010] Preferably, the discharge assembly further comprises a transmission pipe connected through the bottom of the air pressure box 1, the side wall of the transmission pipe is fixedly connected to the outer wall of the cover bucket, and the end of the transmission pipe away from the air pressure box 1 is connected through the air pressure box 2. By utilizing the above-mentioned feature that the bottle blanks are divided into two layers, a rotating frame and a limit plate are provided inside the equipment. After the filling of the cover bucket is completed, the staff can turn on the power of the motor, and the motor drives the cover bucket to rotate through the driving column, so that the equipment can be opened. Figure 2 The state changes to Figure 1 status.

[0011] Preferably, the discharge assembly further comprises an air pressure shrinkage tube 2 which is connected through the air pressure shrinkage tube 2 near the inner wall of the cover bucket, the outer wall of the air pressure box 2 is fixedly connected to the inner wall of the through hole of the cover bucket, the end of the air pressure shrinkage tube 2 away from the air pressure shrinkage tube 2 is fixedly connected to a push plate, the side wall of the push plate is slidably connected to the inner wall of the cover bucket, the top of the cover bucket is fixedly connected to a buffer assembly, and as the angle of the cover bucket itself changes, the rotating plate is affected by gravity and will rotate with the rotating frame as the rotating plate, so that the rotating plate moves from Figure 7 Towards Figure 8 During this process, a gap will be formed between the rotating plate and the cover bucket, so that the bottle blanks originally at the bottom of the cover bucket can flow out from the outlet of the cover bucket through the above gap. When the rotating plate is not swinging, the bottle blanks on the top of the rotating plate are affected by the tilt angle and flow out slowly. After the rotating plate completes the angle change, the gap between the rotating plate and the cover bucket also synchronously limits the speed of the bottle blanks flowing out. Through the application of the above components, the speed and flow rate of the bottle blanks flowing out can be effectively controlled to avoid the internal bottle blanks flowing out at once after the equipment is tilted, causing blockage of subsequent equipment.

[0012] Preferably, the buffer assembly includes a fixed frame fixedly connected to the top of the cover bucket, an end of the fixed frame away from the cover bucket is fixedly connected to an arc-shaped plate, and the inclined surface of the cover bucket is fixedly connected to a sliding track. Utilizing the characteristic that the angle of the above-mentioned rotating plate changes, a discharge assembly is provided inside the equipment. When the angle of the rotating plate changes, the rotating plate will squeeze the air pressure shrinkage tube one, so that the gas of the five air pressure shrinkage tubes one is transmitted to the inside of the air pressure box one and the air pressure shrinkage tube one, and finally enters the inside of the air pressure shrinkage tube two. As the gas inside the air pressure shrinkage tube two increases, the air pressure shrinkage tube two will expand, and the expanded push plate will drive the push plate to move outward, and the outward-moving push plate will contact multiple bottle blanks. Through the application of the above-mentioned components, part of the bottle blanks can be avoided from being inside the cover bucket, causing material jamming inside the cover bucket.

[0013] Preferably, a U-shaped slide is slidably connected to the inner wall of the sliding track, a plurality of fixing rods are fixedly connected to the inner wall of the U-shaped slide, and the other ends of the plurality of fixing rods are rotatably connected to a square rotating plate.

[0014] Preferably, a spring is fixedly connected to the side wall of the U-shaped slide, and the end of the spring away from the U-shaped slide is fixedly connected to the end of the sliding track away from the fixed frame. By utilizing the characteristic that the cover bucket generates an inclination angle, a buffer component is provided inside the device. When the cover bucket is tilted, as the center of gravity angle of the U-shaped slide changes, it presents the following Figure 10 At this time, the U-shaped slide will slide outward along the inner wall of the sliding track. At this time, the U-shaped slide will drive the fixed rod and the square rotating plate to slide outward synchronously. When the square rotating plate is no longer in contact with the inclined surface of the cover bucket, the square rotating plate will swing downward with the connection point as the center, so that the square rotating plate can be adjusted from the bottom to the bottom. Figure 10 The state Z in the middle is transformed into the state Y. At this time, the bottle blanks flowing out of the cover bucket will first flow out along the arc surface of the arc plate and contact the side wall of the square rotating plate. The square rotating plate will absorb the excess power of the bottle blanks flowing out, so that the bottle blanks fall downward through the gap between the arc plate and the square rotating plate. The application of the above components can avoid the initial velocity of the cover bucket flowing out of the cover bucket being too fast, causing the plastic bottle blanks to collide with each other after falling, resulting in dents on the outer wall of the bottle blanks, affecting subsequent use.

[0015] A method for using a cover bucket structure of a preform tipping machine with a blocking mechanism includes the following steps:

[0016] S1: Putting the preforms in: Before use, install the mounting bracket in the desired position. When the external conveyor belt transfers the preforms to the inside of the cover hopper, the preforms fall from top to bottom inside the cover hopper.

[0017] S2: Protect the preform: When the falling preform contacts the top of the rotating square plate, the weight of the preform will force the rotating square plate to rotate downward with torsion spring 1 as the center. Part of the preform will fall to the bottom of the cover bucket, and the remaining preform will stay on the top of the rotating plate.

[0018] The present invention has the following beneficial effects:

[0019] (1) The present invention addresses the problem that excessive stacking of preforms will cause the bottom preforms to sag. A blocking mechanism and a limiting component are provided inside the device. Before use, the mounting bracket is installed at the desired position. When the external conveyor belt conveys the preforms to the inside of the cover bucket, the preforms fall from top to bottom inside the cover bucket. When the falling preforms come into contact with the top of the rotating square plate, the weight of the preforms forces the rotating square plate to rotate downward with the torsion spring as the center, resulting in the following situation: Figure 5 In the middle G state, part of the preforms will fall to the bottom of the cover bucket, and as the material at the bottom of the cover bucket increases, the preforms at the bottom of the rotating plate will hit the bottom of the rotating square plate, thereby limiting the rotation of the rotating square plate, and the excess preforms will stay on the top of the rotating plate, showing as follows Figure 5 In the middle H state, during this process, the excess bottle blanks will stay on the top of the rotating plate, and the rotating plate provides most of the supporting force for the bottle blanks above it. Through the application of the above components, the bottle blanks inside the cover bucket are divided into two layers to avoid excessive pressure on the bottom, which will cause the bottom bottle blanks to sag.

[0020] (2) The present invention utilizes the above-mentioned feature that the finished bottle blanks are divided into two layers, and a rotating frame and a limit plate are set inside the equipment. After the filling of the cover bucket is completed, the staff can turn on the power of the motor, and the motor drives the cover bucket to rotate through the driving column, so that the equipment can be rotated. Figure 2 The state changes to Figure 1 As the angle of the cover bucket changes, the rotating plate is affected by gravity and rotates with the rotating frame as the rotating plate. Figure 7 Towards Figure 8 During this process, a gap will be formed between the rotating plate and the cover bucket, so that the bottle blanks originally at the bottom of the cover bucket can flow out from the outlet of the cover bucket through the above gap. When the rotating plate is not swinging, the bottle blanks on the top of the rotating plate are affected by the tilt angle and flow out slowly. After the rotating plate completes the angle change, the gap between the rotating plate and the cover bucket also synchronously limits the speed of the bottle blanks flowing out. Through the application of the above components, the speed and flow rate of the bottle blanks flowing out can be effectively controlled to avoid the internal bottle blanks flowing out at once after the equipment is tilted, causing blockage of subsequent equipment.

[0021] (3) The present invention utilizes the characteristic of the above-mentioned rotating plate that the angle changes, and is provided with a discharge assembly inside the equipment. When the angle of the rotating plate changes, the rotating plate will squeeze the air pressure shrink tube 1, so that the gas of the five air pressure shrink tubes 1 is transmitted to the inside of the air pressure box 2 through the air pressure box 1 and the air pressure shrink tube 1, and finally enters the inside of the air pressure shrink tube 2. As the gas inside the air pressure shrink tube 2 increases, the air pressure shrink tube 2 will extend, and the extended push plate will drive the push plate to move outward, and the outward-moving push plate will contact multiple bottle blanks. Through the application of the above-mentioned assembly, part of the bottle blanks can be avoided from being inside the cover bucket, causing material jamming inside the cover bucket.

[0022] (4) The present invention utilizes the characteristic of the above-mentioned cover bucket to generate an inclination angle, and a buffer component is provided inside the device. When the cover bucket is tilted, as the angle of the center of gravity of the U-shaped slide changes, it presents the following Figure 10 At this time, the U-shaped slide will slide outward along the inner wall of the sliding track. At this time, the U-shaped slide will drive the fixed rod and the square rotating plate to slide outward synchronously. When the square rotating plate is no longer in contact with the inclined surface of the cover bucket, the square rotating plate will swing downward with the connection point as the center, so that the square rotating plate can be adjusted from the bottom to the bottom. Figure 10 The state Z in the middle is transformed into the state Y. At this time, the bottle blanks flowing out of the cover bucket will first flow out along the arc surface of the arc plate and contact the side wall of the square rotating plate. The square rotating plate will absorb the excess power of the bottle blanks flowing out, so that the bottle blanks fall downward through the gap between the arc plate and the square rotating plate. The application of the above components can avoid the initial velocity of the cover bucket flowing out of the cover bucket being too fast, causing the plastic bottle blanks to collide with each other after falling, resulting in dents on the outer wall of the bottle blanks, affecting subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a cross-sectional schematic diagram of the working state of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 3 Schematic diagram of the blocking mechanism of the present invention;

[0027] Figure 4 It is a cross-sectional schematic diagram of the blocking mechanism of the present invention;

[0028] Figure 5 is a schematic cross-sectional view of a restriction assembly of the present invention;

[0029] Figure 6 For the present invention Figure 5 A is an enlarged schematic diagram;

[0030] Figure 7 It is a cross-sectional schematic diagram of the discharge assembly of the present invention;

[0031] Figure 8 This is a cross-sectional schematic diagram of the working state of the discharge assembly of the present invention;

[0032] Figure 9 is a schematic cross-sectional view of a buffer assembly of the present invention;

[0033] Figure 10 This is a cross-sectional schematic diagram of the working state of the buffer assembly of the present invention;

[0034] Figure 11 Schematic diagram of the workflow of the present invention.

[0035] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0036] In the figure: 1. Mounting bracket; 11. Motor; 12. Driving column; 13. Cover bucket; 2. Blocking mechanism; 21. Rotating plate; 22. Rotating frame; 23. Limiting plate; 3. Limiting assembly; 31. Through-hole slot; 32. Right-angle slot; 33. Rotating square plate; 34. Torsion spring 1; 35. Mounting hole; 4. Discharge assembly; 41. Air pressure box 1; 42. Air pressure shrink tube 1; 43. Transmission tube; 44. Air pressure box 2; 45. Air pressure shrink tube 2; 46. Push plate; 5. Buffer assembly; 51. Fixed frame; 52. Arc plate; 53. Sliding track; 54. U-shaped slide; 55. Fixed rod; 56. Square rotating plate; 57. Spring 1. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] For example 1, please refer to Figure 1 - Figure 6 The present invention is a cover bucket structure of a preform tipping machine with a blocking mechanism, comprising a mounting bracket 1, a motor 11 fixedly connected to the side wall of the mounting bracket 1, a driving column 12 fixedly connected to the output shaft of the motor 11, and a cover bucket 13 fixedly connected to the outer wall of the driving column 12;

[0039] The blocking mechanism 2 includes a rotating plate 21, a rotating frame 22 for limiting the rotation of the rotating plate 21, a limiting plate 23, and a limiting component 3 for controlling the feeding and discharging of the rotating plate 21;

[0040] The side wall of the rotating plate 21 is rotatably connected to the inner wall of the rotating frame 22 . The inner wall of the rotating frame 22 is fixedly connected to a limit plate 23 . The top of the limit plate 23 contacts the bottom of the rotating plate 21 .

[0041] The limiting component 3 includes five through-hole slots 31 opened on the top of the rotating plate 21, and a plurality of right-angle slots 32 are opened at the bottom of the five through-hole slots 31. A rotating square plate 33 is rotatably connected to the inner wall of the plurality of right-angle slots 32, and mounting holes 35 are opened at both ends of the rotating square plate 33.

[0042] The limiting assembly 3 also includes a torsion spring 134 fixedly connected to the inner wall of the mounting hole 35. One end of the torsion spring 134 away from the mounting hole 35 is fixedly connected to the inner wall of the right-angle groove 32. A discharge assembly 4 is fixedly connected to the side wall of the cover bucket 13. Before use, the mounting bracket 1 is installed in the desired position. When the external conveyor belt transfers the preform to the inside of the cover bucket 13, the preform falls from top to bottom inside the cover bucket 13. When the falling preform contacts the top of the rotating square plate 33, the weight of the preform will force the rotating square plate 33 to rotate downward with the torsion spring 13 as the center, presenting the following Figure 5 In the middle G state, part of the preform will fall to the inner bottom of the cover hopper 13.

[0043] For example 2, please refer to Figure 7 - Figure 11 The present invention is a cover bucket structure of a preform tipping machine with a blocking mechanism. On the basis of the first embodiment, the discharge assembly 4 includes an air pressure box 41 connected to the side wall of the cover bucket 13. Five air pressure shrinkage tubes 42 are connected to the side of the air pressure box 41 near the inner wall of the cover bucket 13. One end of the five air pressure shrinkage tubes 42 is fixedly connected to the top of the rotating plate 21. As the material at the bottom of the cover bucket 13 increases, the bottle blanks at the bottom of the rotating plate 21 will hit the bottom of the rotating square plate 33, thereby limiting the rotation of the rotating square plate 33, and the excess bottle blanks will stay on the top of the rotating plate 21, presenting the following Figure 5 In the middle H state, during this process, the excess bottle blanks will stay on the top of the rotating plate 21, and the rotating plate 21 provides most of the supporting force for the bottle blanks above it. Through the application of the above components, the bottle blanks inside the cover hopper 13 are divided into two layers, avoiding excessive pressure on the bottom, which would cause the bottom bottle blanks to sag.

[0044] The discharge assembly 4 also includes a transmission pipe 43 connected to the bottom of the air pressure box 41, the side wall of the transmission pipe 43 is fixedly connected to the outer wall of the cover bucket 13, and the end of the transmission pipe 43 away from the air pressure box 41 is connected to the air pressure box 2 44. By utilizing the above-mentioned feature of dividing the bottle blanks into two layers, a rotating frame 22 and a limit plate 23 are provided inside the equipment. After the filling of the cover bucket 13 is completed, the staff can turn on the power of the motor 11. At this time, the motor 11 drives the cover bucket 13 to rotate through the driving column 12, so that the equipment can be opened. Figure 2 The state changes to Figure 1 status.

[0045] The discharge assembly 4 also includes a pneumatic contraction tube 2 45 which is connected to the pneumatic contraction tube 2 45 near the inner wall of the cover bucket 13. The outer wall of the pneumatic box 2 44 is fixedly connected to the inner wall of the through hole of the cover bucket 13. The end of the pneumatic contraction tube 2 45 away from the pneumatic contraction tube 2 45 is fixedly connected to a push plate 46. The side wall of the push plate 46 is slidably connected to the inner wall of the cover bucket 13. The top of the cover bucket 13 is fixedly connected to the buffer assembly 5. As the angle of the cover bucket 13 itself changes, the rotating plate 21 is affected by gravity and will rotate with the rotating frame 22 as the rotating plate 21, so that the rotating plate 21 moves from Figure 7 Towards Figure 8 During this process, a gap is formed between the rotating plate 21 and the cover bucket 13, so that the preforms originally at the bottom of the cover bucket 13 can flow out from the outlet of the cover bucket 13 through the above gap. When the rotating plate 21 is not swinging, the preforms on the top of the rotating plate 21 are affected by the tilt angle and flow out slowly. After the rotating plate 21 completes the angle change, the gap between the rotating plate 21 and the cover bucket 13 also synchronously limits the speed of the bottles flowing out. Through the application of the above components, the speed and flow rate of the preforms flowing out can be effectively controlled to avoid the internal preforms flowing out at once after the equipment is tilted, causing blockage of subsequent equipment.

[0046] The buffer assembly 5 includes a fixing frame 51 fixedly connected to the top of the cover bucket 13, and the end of the fixing frame 51 away from the cover bucket 13 is fixedly connected to an arc-shaped plate 52, and the inclined surface of the cover bucket 13 is fixedly connected to a sliding track 53. Taking advantage of the angle change of the above-mentioned rotating plate 21, a discharge assembly 4 is provided inside the equipment. When the angle of the rotating plate 21 changes, the rotating plate 21 will squeeze the air pressure shrinkage tube 1 42, so that the gas of the five air pressure shrinkage tubes 1 42 is transmitted to the inside of the air pressure box 1 41 and the air pressure shrinkage tube 1 42, and finally enters the inside of the air pressure shrinkage tube 2 45. As the gas inside the air pressure shrinkage tube 2 45 increases, the air pressure shrinkage tube 2 45 will extend, and the extended push plate 46 will drive the push plate 46 to move outward, and the outward-moving push plate 46 will contact multiple bottle blanks. Through the application of the above-mentioned components, some bottle blanks are prevented from being inside the cover bucket 13, causing material jamming inside the cover bucket 13.

[0047] A U-shaped slide 54 is slidably connected to the inner wall of the sliding track 53 , a plurality of fixing rods 55 are fixedly connected to the inner wall of the U-shaped slide 54 , and a square rotating plate 56 is rotatably connected to the other ends of the plurality of fixing rods 55 .

[0048] A spring 57 is fixedly connected to the side wall of the U-shaped slide 54. The end of the spring 57 away from the U-shaped slide 54 is fixedly connected to the end of the sliding track 53 away from the fixed frame 51. Taking advantage of the above-mentioned characteristic of the tilt angle of the cover bucket 13, a buffer component 5 is provided inside the device. When the cover bucket 13 tilts, the U-shaped slide 54 is affected by the change in the center of gravity angle, which is as follows. Figure 10 At this time, the U-shaped slide 54 will slide outward along the inner wall of the sliding track 53, and the U-shaped slide 54 will drive the fixing rod 55 and the square rotating plate 56 to slide outward synchronously. When the square rotating plate 56 is no longer in contact with the inclined surface of the cover bucket 13, the square rotating plate 56 will swing downward with the connection point as the center, so that the square rotating plate 56 is Figure 10 The state Z is transformed into the state Y. At this time, the preforms flowing out of the cover hopper 13 will first flow outward along the curved surface of the curved plate 52 and contact the side wall of the square rotating plate 56. The square rotating plate 56 will absorb the excess power of the preforms flowing outward, causing the preforms to fall downward through the gap between the curved plate 52 and the square rotating plate 56. The application of the above components can prevent the initial velocity of the cover hopper 13 from being too high, which would cause the preforms of plastic products to collide with each other after falling, resulting in dents on the outer wall of the preforms, affecting subsequent use.

[0049] The method for using the cover bucket structure of the preform tipping machine includes the following steps:

[0050] S1: Dropping preforms: Before use, install the mounting bracket 1 at the desired position. When the external conveyor belt transfers the preforms to the inside of the cover hopper 13, the preforms fall from top to bottom inside the cover hopper 13.

[0051] S2: Protecting the preforms: When the falling preforms come into contact with the top of the rotating square plate 33, the weight of the preforms forces the rotating square plate 33 to rotate downward around the torsion spring 1 34. Part of the preforms fall to the bottom of the cover hopper 13, and the remaining preforms remain on the top of the rotating plate 21.

[0052] A specific application of this embodiment is as follows: before use, the mounting bracket 1 is mounted at the desired position. When the external conveyor belt conveys the preform to the inside of the cover bucket 13, the preform falls from top to bottom inside the cover bucket 13. When the falling preform contacts the top of the rotating square plate 33, the weight of the preform forces the rotating square plate 33 to rotate downward with the torsion spring 1 34 as the center, presenting the following situation: Figure 5In the middle G state, part of the preforms will fall to the bottom of the cover bucket 13. As the material at the bottom of the cover bucket 13 increases, the preforms at the bottom of the rotating plate 21 will contact the bottom of the rotating square plate 33, thereby limiting the rotation of the rotating square plate 33. At this time, the excess preforms will stay on the top of the rotating plate 21, presenting a Figure 5 In the middle H state, during this process, the excess bottle blanks will stay on the top of the rotating plate 21, and the rotating plate 21 provides most of the supporting force for the bottle blanks above it. Through the application of the above components, the bottle blanks inside the cover hopper 13 are divided into two layers, avoiding excessive pressure on the bottom, which would cause the bottom bottle blanks to sag.

[0053] Taking advantage of the above-mentioned feature that the preforms are divided into two layers, a rotating frame 22 and a limit plate 23 are provided inside the device. After the filling of the cover bucket 13 is completed, the staff can turn on the power of the motor 11. At this time, the motor 11 drives the cover bucket 13 to rotate through the driving column 12, so that the device can be rotated. Figure 2 The state changes to Figure 1 As the angle of the cover 13 changes, the rotating plate 21 is affected by gravity and rotates with the rotating frame 22, so that the rotating plate 21 moves from Figure 7 Towards Figure 8 During this process, a gap is formed between the rotating plate 21 and the cover bucket 13, so that the preforms originally at the bottom of the cover bucket 13 can flow out from the outlet of the cover bucket 13 through the above gap. When the rotating plate 21 is not swinging, the preforms on the top of the rotating plate 21 are affected by the tilt angle and flow out slowly. After the rotating plate 21 completes the angle change, the gap between the rotating plate 21 and the cover bucket 13 also synchronously limits the speed of the bottles flowing out. Through the application of the above components, the speed and flow rate of the preforms flowing out can be effectively controlled to avoid the internal preforms flowing out at once after the equipment is tilted, causing blockage of subsequent equipment.

[0054] Taking advantage of the angle change of the rotating plate 21, a discharge assembly 4 is provided inside the equipment. When the angle of the rotating plate 21 changes, the rotating plate 21 will squeeze the air pressure shrinkage tube 1 42, so that the gas in the five air pressure shrinkage tubes 1 42 is transmitted to the inside of the air pressure box 1 41 and the air pressure shrinkage tube 1 42, and finally enters the inside of the air pressure shrinkage tube 2 45. As the gas inside the air pressure shrinkage tube 2 45 increases, the air pressure shrinkage tube 2 45 will extend, and the extended push plate 46 will drive the push plate 46 to move outward, and the outward-moving push plate 46 will contact multiple bottle blanks. Through the application of the above-mentioned components, part of the bottle blanks can be prevented from being inside the cover bucket 13, causing material jamming inside the cover bucket 13.

[0055] Taking advantage of the above-mentioned characteristic that the cover bucket 13 produces an inclined angle, a buffer component 5 is provided inside the device. When the cover bucket 13 is tilted, the U-shaped slide 54 is subjected to a change in the center of gravity angle, which is as follows: Figure 10 At this time, the U-shaped slide 54 will slide outward along the inner wall of the sliding track 53, and the U-shaped slide 54 will drive the fixing rod 55 and the square rotating plate 56 to slide outward synchronously, and at this time the spring 1 57 will be pulled and accumulate mechanical power. When the square rotating plate 56 is no longer in contact with the inclined surface of the cover bucket 13, the square rotating plate 56 will swing downward with the connection point as the center, so that the square rotating plate 56 is Figure 10 The state Z is transformed into the state Y. At this time, the preforms flowing out of the cover hopper 13 will first flow outward along the curved surface of the curved plate 52 and contact the side wall of the square rotating plate 56. The square rotating plate 56 will absorb the excess power of the preforms flowing outward, causing the preforms to fall downward through the gap between the curved plate 52 and the square rotating plate 56. The application of the above components can prevent the initial velocity of the cover hopper 13 from being too high, which would cause the preforms of plastic products to collide with each other after falling, resulting in dents on the outer wall of the preforms, affecting subsequent use.

[0056] Among them, after the equipment completes the tipping, the motor 11 will drive the cover bucket 13 to reset, and as the angle is reset, the spring 1 57 will release the mechanical power to drive the U-shaped slide 54, the fixing rod 55, and the square rotating plate 56 to reset.

[0057] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cover bucket structure of a preform tipping machine with a blocking mechanism, comprising a mounting bracket (1), a motor (11) fixedly connected to a side wall of the mounting bracket (1), an output shaft of the motor (11) fixedly connected to a driving column (12), and a cover bucket (13) fixedly connected to an outer wall of the driving column (12), characterized in that: Also includes: A blocking mechanism (2), the blocking mechanism (2) comprising a rotating plate (21), a rotating frame (22) for limiting the rotation of the rotating plate (21), a limiting plate (23), and a limiting component (3) for controlling the feeding and discharging of the rotating plate (21); The side wall of the rotating plate (21) is rotatably connected to the inner wall of the rotating frame (22), and a limiting plate (23) is fixedly connected to the inner wall of the rotating frame (22), and the top of the limiting plate (23) contacts the bottom of the rotating plate (21); The limiting assembly (3) includes five through-hole slots (31) formed on the top of the rotating plate (21), a plurality of right-angle slots (32) formed at the bottom of the five through-hole slots (31), a plurality of rotating square plates (33) being rotatably connected to the inner walls of the plurality of right-angle slots (32), and mounting holes (35) formed at both ends of the rotating square plates (33); The limiting assembly (3) further comprises a torsion spring (34) fixedly connected to the inner wall of the mounting hole (35), one end of the torsion spring (34) away from the mounting hole (35) being fixedly connected to the inner wall of the right-angle groove (32), and a discharge assembly (4) being fixedly connected to the side wall of the cover hopper (13); Throwing the preform: before use, the mounting bracket (1) is mounted at the desired position, and when the external conveyor belt conveys the preform to the inside of the cover bucket (13), the preform falls from top to bottom inside the cover bucket (13); Protecting the preforms: When the falling preforms come into contact with the top of the rotating square plate (33), the weight of the preforms will force the rotating square plate (33) to rotate downward with the torsion spring (34) as the center. Part of the preforms will fall to the bottom of the cover bucket (13), and the remaining preforms will stay on the top of the rotating plate (21), dividing the preforms inside the cover bucket (13) into two layers.

2. The cover bucket structure of the preform tipping machine with a blocking mechanism according to claim 1, characterized in that: The discharge assembly (4) includes an air pressure box (41) connected to the side wall of the cover bucket (13), and five air pressure contraction tubes (42) are connected to the side of the air pressure box (41) near the inner wall of the cover bucket (13). One end of the five air pressure contraction tubes (42) is fixedly connected to the top of the rotating plate (21) through the air pressure box (41).

3. The cover bucket structure of the preform tipping machine with a blocking mechanism according to claim 2, characterized in that: The discharge assembly (4) further comprises a transmission pipe (43) connected to the bottom of the air pressure box (41), the side wall of the transmission pipe (43) is fixedly connected to the outer wall of the cover hopper (13), and the end of the transmission pipe (43) away from the air pressure box (41) is connected to the air pressure box (44).

4. The cover bucket structure of the preform tipping machine with a blocking mechanism according to claim 3, characterized in that: The discharge assembly (4) further includes a second air pressure shrinkage tube (45) which is connected to the second air pressure shrinkage tube (45) near the inner wall of the cover bucket (13); the outer wall of the second air pressure box (44) is fixedly connected to the inner wall of the through hole of the cover bucket (13); the end of the second air pressure shrinkage tube (45) away from the second air pressure shrinkage tube (45) is fixedly connected to a push plate (46); the side wall of the push plate (46) is slidably connected to the inner wall of the cover bucket (13); and the top of the cover bucket (13) is fixedly connected to a buffer assembly (5).

5. The cover bucket structure of the preform tipping machine with a blocking mechanism according to claim 4, characterized in that: The buffer assembly (5) comprises a fixing frame (51) fixedly connected to the top of the cover bucket (13), an end of the fixing frame (51) away from the cover bucket (13) is fixedly connected to an arc plate (52), and an inclined surface of the cover bucket (13) is fixedly connected to a sliding track (53).

6. The cover bucket structure of the preform tipping machine with a blocking mechanism according to claim 5, characterized in that: A U-shaped slide (54) is slidably connected to the inner wall of the sliding track (53), a plurality of fixed rods (55) are fixedly connected to the inner wall of the U-shaped slide (54), and the other ends of the plurality of fixed rods (55) are rotatably connected to a square rotating plate (56).

7. The cover bucket structure of the preform tipping machine with a blocking mechanism according to claim 6, characterized in that: A spring 1 (57) is fixedly connected to the side wall of the U-shaped slide (54), and an end of the spring 1 (57) away from the U-shaped slide (54) is fixedly connected to an end of the sliding track (53) away from the fixed frame (51).

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