High-pressure resistant bubble wrap and its forming machine

Abstract

This invention relates to high-pressure resistant bubble wrap and its forming machine. The bubble wrap forming machine includes a frame, a first bubble wrap supply system, a second bubble wrap supply system, a bubble absorption system, a rubber granule supply system, a cooling system, and a winding system. The rubber granule supply system and the bubble absorption system are arranged opposite to each other. The bubble absorption system has a plurality of absorption holes, and the rubber granule supply system has a plurality of rubber granule discharge holes. The granule discharge holes correspond to the depressions in the first film layer. The production process of the high-pressure resistant bubble wrap forming machine includes the following steps: the first bubble wrap supply system releases the first film layer, the second bubble wrap supply system releases the second film layer, the upper bubble absorption system absorbs dense depressions in the first film layer, and the rubber granule supply system sprinkles rubber granules into the corresponding depressions, thereby producing high-pressure resistant bubble wrap.

Description

Technical Field

[0001] This invention relates to the field of plastic molding technology, and in particular to a high-pressure resistant bubble film and its molding machine. Background Technology

[0002] Bubble wrap is a product made primarily of high-pressure polyethylene, with added whitening agents, opening agents, and other auxiliary materials, extruded and vacuum-formed into bubbles at approximately 230 degrees Celsius. It is a lightweight, transparent, non-toxic, and odorless new type of plastic packaging material that provides moisture protection, cushioning, and insulation for products. It is also called bubble pad.

[0003] The types of air cushion films include ordinary polyethylene air cushion film, antistatic air cushion film, flame retardant air cushion film, aluminum foil air cushion film, kraft paper bubble wrap, color printed air cushion film, three-layer air cushion film (single-layer bubble), five-layer air cushion film (double-layer bubble), polypropylene thickened air cushion film, and composite pearl cotton air cushion film.

[0004] The existing bubble wrap has insufficient load-bearing capacity, and once the bubbles burst, it will completely lose its shock absorption ability. Summary of the Invention

[0005] To overcome the technical defects of the existing technology, the present invention provides high pressure resistant bubble film and its forming machine, which can produce high pressure resistant bubble film.

[0006] The technical solution adopted in this invention is:

[0007] A high-pressure resistant bubble film forming machine includes a frame and a first bubble film supply system, a second bubble film supply system, a bubble absorption system, a rubber granule supply system, a cooling system, and a winding system respectively mounted on the frame. The rubber granule supply system is located above the bubble absorption system and has a plurality of absorption holes and a plurality of rubber granule discharge holes, which correspond to the recessed positions of the first film layer. The first and second bubble film supply systems are mounted on one side of the bubble absorption system. A composite roller that rolls against the bubble absorption system is mounted on the upper side of the bubble absorption system. The cooling system is mounted on the other side of the bubble absorption system, and the winding system is mounted on the side of the cooling system away from the bubble absorption system.

[0008] Preferably, the first bubble film supply system includes a first film conveying roller, a first film conveying motor, and a first film unfolding roller. The first film conveying roller is rotatably mounted on the frame, the first film conveying motor is mounted on the frame, and the first film conveying motor is drivenly connected to the first film conveying roller. The first film unfolding roller is rotatably mounted on the frame and has two symmetrically arranged unfolding spiral patterns.

[0009] Preferably, the second bubble film supply system includes a second bubble film conveying roller and a second film conveying motor. The second bubble film conveying roller is rotatably mounted on the frame, and the second film conveying motor is drivenly connected to the second bubble film conveying roller. The second film conveying motor is mounted on the frame.

[0010] Preferably, the bubble absorption system includes a main traction motor and a bubble roller. The bubble roller is rotatably mounted on the frame. The main traction motor is connected to the bubble roller in a transmission connection. The bubble roller is provided with a plurality of absorption holes, and each absorption hole is connected to a vacuum pump.

[0011] Preferably, the rubber granule supply system includes a rubber granule supply roller and a rubber supply motor. The rubber granule supply roller is rotatably mounted on the frame, and the rubber supply motor is mounted on the frame. The rubber supply motor is connected to the rubber granule supply roller in a transmission manner, and a rubber granule hopper is attached to the upper side of the rubber granule supply roller.

[0012] Preferably, a clamping support plate is installed inside the rubber granule supply roller. The clamping support plate is installed near the rubber granule discharge hole. A hysteresis column pointing towards the rubber granule discharge hole is provided on the side of the clamping support plate near the rubber granule discharge hole. Two opposing clamping blocks are slidably provided on the clamping support plate. A clamping needle is provided on the lower side of the two clamping blocks. Both clamping needles point towards the lower side of the hysteresis column. Negative or positive pressure is introduced into the rubber granule supply roller through a rotary joint. Electromagnets on the two clamping blocks are energized and attract each other. A melting device is provided on the side of the rubber granule supply roller. The melting device includes a melting rod and a melting ejection cylinder. An electric heating wire is provided at the end of the melting rod.

[0013] Preferably, the cooling system includes a cooling roller connected to a chiller.

[0014] Preferably, the winding system includes a winding roller and a winding motor. The winding roller is rotatably mounted on the frame, and the winding motor is mounted on the frame and is drively connected to the winding roller.

[0015] High-pressure resistant bubble wrap, produced using a high-pressure resistant bubble wrap forming machine, includes a first film layer and a second film layer, with a plurality of bubbles formed between the first film layer and the second film layer, and each bubble containing rubber particles.

[0016] The beneficial effects of this invention are:

[0017] The high-pressure resistant bubble wrap forming machine includes a frame and a first bubble wrap supply system, a second bubble wrap supply system, a bubble absorption system, a rubber granule supply system, a cooling system, and a winding system, all mounted on the frame. The rubber granule supply system is located above the bubble absorption system and has several absorption holes for absorbing depressions in the first film layer using a vacuum forming method. The rubber granule supply system has several rubber granule discharge holes, which correspond to the depressions in the first film layer, allowing rubber granules to be placed into the corresponding depressions. The first and second bubble wrap supply systems are mounted on one side of the bubble absorption system to transport the first and second film layers. The bubble absorption system has a composite roller on its upper side that presses against the bubble absorption system to combine the first and second film layers. Bubbles form in the recessed areas of the first film layer after the second film layers are combined, thus forming a bubble film. Rubber particles are dispersed within the bubbles. After the bubble film is under pressure but before the bubbles burst, the rubber particles assist in bearing the pressure, preventing bubble rupture and improving the load-bearing capacity of the bubble film. A cooling system is installed on the other side of the bubble absorption system, with one side of the second film layer of the bubble film adhering to the cooling system for cooling and shaping. A winding system is installed on the side of the cooling system away from the bubble absorption system for winding. The production process of this high-pressure-resistant bubble film includes the following steps:

[0018] S1: The first bubble film supply system releases the first film layer, and the second bubble film supply system releases the second film layer;

[0019] S2: The upper bubble absorption system absorbs dense depressions on the first membrane layer;

[0020] S3: The rubber granule supply system sprinkles rubber granules into the corresponding depressions, and the upper bubble absorption system and the composite roller press against each other, thereby squeezing and bonding the first film layer and the second film layer together.

[0021] S4: The cooling system cools and shapes the composite first and second film layers;

[0022] S5: Rewinding system rewinds the coil. Attached Figure Description

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 A schematic diagram of the structure of the rubber granule supply roller.

[0025] Figure 3 This is a schematic diagram of a bubble membrane structure.

[0026] Figure 4 This is a schematic diagram showing the positional relationship between the rubber granule supply system and the bubble absorption system.

[0027] Figure 5 This is a schematic diagram of the structure when rubber granules correspond to the melting device.

[0028] Figure 6 A cross-sectional schematic diagram of the rubber granule supply system.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. First bubble film supply system; 11. First film conveying roller; 12. First film conveying motor; 13. First film unfolding roller;

[0031] 2. Second bubble film supply system; 21. Second bubble film conveying roller; 22. Second film conveying motor;

[0032] 3. Bubble absorption system; 31. Main traction motor; 32. Bubble roller; 321. Absorption hole;

[0033] 4. Rubber granule supply system; 41. Rubber granule supply roller; 411. Semi-cylindrical component; 4111. Rubber granule discharge hole; 413. Clamping support plate; 4131. Retarding column; 414. Clamping block; 4141. Clamping needle; 43. Rubber granule hopper; 46. Melting device; 461. Melting rod; 462. Melting ejection cylinder;

[0034] 5. Cooling system;

[0035] 6. Winding system; 61. Winding roller; 62. Winding motor;

[0036] 7. Composite roller;

[0037] 8. First film layer;

[0038] 9. Second film layer. Detailed Implementation

[0039] The present invention will be further described below in conjunction with the accompanying drawings:

[0040] like Figure 1 — Figure 6As shown, this embodiment provides a high-pressure resistant bubble wrap forming machine, including a frame and a first bubble wrap supply system 1, a second bubble wrap supply system 2, a bubble absorption system 3, a rubber granule supply system 4, a cooling system 5, and a winding system 6, all respectively mounted on the frame. The rubber granule supply system 4 is located above the bubble absorption system 3. The bubble absorption system 3 has a plurality of absorption holes 321 for absorbing a plurality of depressions in the first film layer 8. The rubber granule supply system 4 has a plurality of rubber granule discharge holes 4111, which correspond to the depression positions in the first film layer 8, thereby placing rubber granules into the corresponding depression forming positions. The first bubble wrap supply system 1 and the second bubble wrap supply system 2 are mounted on one side of the bubble absorption system 3 for conveying the first film layer 8 and the second film layer 8. Layer 9, the upper side of the bubble absorption system 3 is provided with a composite roller 7 that rolls against the bubble absorption system 3 to achieve the composite of the first film layer 8 and the second film layer 9. After the first film layer 8 and the second film layer 9 are composited, bubbles are formed in the recessed positions of the first film layer 8, thus forming a bubble film. The purpose of this solution is to disperse rubber particles in the bubbles. After the bubble film is under pressure, before the bubbles burst, the rubber particles assist in bearing the pressure, prevent the bubbles from bursting, and improve the load-bearing capacity of the bubble film. The cooling system 5 is installed on the other side of the bubble absorption system 3. The second film layer 9 of the bubble film is attached to the cooling system to achieve cooling and shaping. The winding system 6 is installed on the side of the cooling system 5 away from the bubble absorption system 3 to achieve winding. The production process of this high pressure resistant bubble film forming machine includes the following steps:

[0041] S1: The first bubble film supply system 1 releases the first film layer 8, and the second bubble film supply system 2 releases the second film layer 9;

[0042] S2: The upper bubble absorption system 3 absorbs dense depressions on the first membrane layer 8;

[0043] S3: The rubber granule supply system 4 sprinkles rubber granules into the corresponding depressions, and the upper bubble absorption system 3 and the composite roller 7 roll against each other, thereby squeezing and bonding the first film layer 8 and the second film layer 9 together, so that the first film layer 8 and the second film layer 9 are bonded together.

[0044] S4: Cooling system 5 cools and shapes the composite first film layer 8 and second film layer 9;

[0045] S5: Rewinding system 6 rewinding.

[0046] Specifically, the first bubble film supply system 1 includes a first film conveying roller 11, a first film conveying motor 12, and a first film unfolding roller 13. The first film conveying roller 11 is rotatably mounted on the frame, and the first film conveying motor 12 is mounted on the frame. The first film conveying motor 12 is connected to the first film conveying roller 11 for transmission. The first film conveying motor 12 drives the first film conveying roller 11 to rotate to realize the unwinding of the first film layer 8. The first film unfolding roller 13 is rotatably mounted on the frame. The first film unfolding roller 13 has two symmetrically arranged unfolding spiral patterns. The two unfolding spiral patterns unfold and convey the first film layer 8. This is the prior art and will not be described in detail here.

[0047] Specifically, the second bubble film supply system 2 includes a second bubble film conveying roller 21 and a second film conveying motor 22. The second bubble film conveying roller 21 is rotatably mounted on the frame. The second film conveying motor 22 is connected to the second bubble film conveying roller 21 for transmission. The second film conveying motor 22 drives the second bubble film conveying roller 21 to rotate, thereby realizing the unwinding of the second film layer 9. The second film conveying motor 22 is mounted on the frame to realize the conveying of the second film layer 9.

[0048] Specifically, the bubble absorption system 3 includes a main traction motor 31 and a bubble roller 32. The bubble roller 32 is rotatably mounted on the frame. The main traction motor 31 is connected to the bubble roller 32. The bubble roller 32 is provided with a number of absorption holes 321. Each absorption hole 321 is connected to a vacuum pump, which in turn creates a depression. In order to make the first film layer 8 and the second film layer 9 composite together when the bubble absorption system 3 and the composite roller 7 are rolled together, both the bubble absorption system 3 and the composite roller 7 are connected to steam through a rotary joint, thereby achieving heating.

[0049] Specifically, the rubber granule supply system 4 includes a rubber granule supply roller 41 and a rubber supply motor. The rubber granule supply roller 41 is rotatably mounted on the frame, and the rubber supply motor is mounted on the frame. The rubber supply motor is connected to the rubber granule supply roller 41 for transmission, thereby realizing the rotation of the rubber granule supply roller 41. The rubber granule supply roller 41 is formed by bolting together two semi-cylindrical components 411. One of the semi-cylindrical components 411 is provided with a rubber granule discharge hole 4111 for releasing rubber granules. In order to continuously supply materials, a rubber granule hopper 43 is attached to the upper side of the rubber granule supply roller 41.

[0050] Specifically, a clamping support plate 413 is installed on the semi-cylindrical component 411. The clamping support plate 413 is installed near the rubber granule discharge hole 4111. A hysteresis column 4131 pointing towards the rubber granule discharge hole 4111 is provided on the side of the clamping support plate 413 near the rubber granule discharge hole 4111. Two opposing clamping blocks 414 are slidably provided on the clamping support plate 413. A clamping needle 4141 is provided on the lower side of the two clamping blocks 414. Both clamping needles 4141 point towards the lower side of the hysteresis column 4131. Before clamping, the rubber granule supply roller 41 is supplied with negative pressure through the rotary joint. When the rubber granule supply roller 41 rotates, the rubber granules are sucked into the rubber granule discharge hole 4111. The rubber granules are held in place by the hysteresis column 4131. The electromagnets on the two clamping blocks 414 are energized and attract each other, thereby causing the two clamping needles 4141 to clamp the rubber granules.

[0051] To facilitate the stable placement of rubber granules on the first film layer 8, a melting device 46 is provided on the side of the rubber granule supply roller 41. The melting device 46 includes a melting rod 461 and a melting ejection cylinder 462. When the rubber granules pass through, the melting rod 461 is pushed towards the rubber granules. An electric heating wire is provided at the end of the melting rod 461. The melting ejection cylinder 462 is electrically connected to a photoelectric sensor to control the ejection of the melting ejection cylinder 462. The melting ejection cylinder 462 is a cylinder. Since the rubber granules are black, after the photoelectric sensor detects the rubber granules, it controls the PLC to... The controller controls the ejection cylinder 462 to eject the rubber granules. The control of the ejection cylinder 462 by the photoelectric sensor is existing technology and will not be described in detail here. In order to maintain the energization of the electromagnets on the two clamping blocks 414, the electromagnets on the clamping blocks 414 are energized through the rotary joint. When it is necessary to release the rubber granules, the electromagnets on the two clamping blocks 414 are de-energized, and the preset compression spring between the two clamping blocks 414 separates the two clamping blocks 414. The rubber granule supply roller 41 is supplied with positive pressure through the rotary joint to place the rubber granules in the first film layer 8.

[0052] Specifically, the cooling system 5 includes a cooling roller, which is connected to a chiller to cool the bubble film.

[0053] Specifically, the winding system 6 includes a winding roller 61 and a winding motor 62. The winding roller 61 is rotatably mounted on the frame, and the winding motor 62 is mounted on the frame. The winding motor 62 is connected to the winding roller 61 for transmission to realize winding.

[0054] High-pressure resistant bubble wrap, produced using a high-pressure resistant bubble wrap forming machine, includes a first film layer 8 and a second film layer 9. Several bubbles are formed between the first film layer 8 and the second film layer 9, and each bubble contains rubber particles to improve support.

[0055] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A high-pressure resistant bubble wrap forming machine, characterized in that, The bubble wrap forming machine includes a frame and a first bubble wrap supply system, a second bubble wrap supply system, a bubble absorption system, a rubber granule supply system, a cooling system, and a winding system, all mounted on the frame. The rubber granule supply system is located above the bubble absorption system. The bubble absorption system has several absorption holes and several rubber granule discharge holes, which correspond to the recessed positions of the first film layer. The first and second bubble wrap supply systems are mounted on one side of the bubble absorption system. A composite roller that rolls against the bubble absorption system is located on the upper side of the bubble absorption system. The cooling system is mounted on the other side of the bubble absorption system. The winding system is mounted on the side of the cooling system away from the bubble absorption system. The rubber granule supply system includes a rubber granule supply roller and a rubber supply motor. The roller is rotatably mounted on the frame. The rubber supply motor is mounted on the frame and is connected to the rubber granule supply roller. A rubber granule hopper is fitted to the upper side of the rubber granule supply roller. A clamping support plate is installed inside the rubber granule supply roller. The clamping support plate is installed near the rubber granule discharge hole. A hysteresis column pointing towards the rubber granule discharge hole is provided on the side of the clamping support plate near the rubber granule discharge hole. Two opposing clamping blocks are slidably provided on the clamping support plate. A clamping pin is provided on the lower side of the two clamping blocks. Both clamping pins point towards the lower side of the hysteresis column. The rubber granule supply roller is supplied with negative or positive pressure through a rotary joint. Electromagnets on the two clamping blocks are energized and attract each other. A melting device is provided on the side of the rubber granule supply roller. The melting device includes a melting rod and a melting ejection cylinder. An electric heating wire is provided at the end of the melting rod.

2. The high-pressure resistant bubble film forming machine according to claim 1, characterized in that, The first bubble film supply system includes a first film conveying roller, a first film conveying motor, and a first film unfolding roller. The first film conveying roller is rotatably mounted on the frame. The first film conveying motor is mounted on the frame and is connected to the first film conveying roller in a driving connection. The first film unfolding roller is rotatably mounted on the frame and has two symmetrically arranged unfolding spiral patterns.

3. The high-pressure resistant bubble film forming machine according to claim 1, characterized in that, The second bubble film supply system includes a second bubble film conveying roller and a second film conveying motor. The second bubble film conveying roller is rotatably mounted on the frame, and the second film conveying motor is drivenly connected to the second bubble film conveying roller. The second film conveying motor is mounted on the frame.

4. The high-pressure resistant bubble film forming machine according to claim 1, characterized in that, The bubble absorption system includes a main traction motor and a bubble roller. The bubble roller is rotatably mounted on the frame. The main traction motor is connected to the bubble roller in a transmission connection. The bubble roller is provided with a plurality of absorption holes, and each absorption hole is connected to a vacuum pump.

5. The high-pressure resistant bubble film forming machine according to claim 1, characterized in that, The cooling system includes a cooling roller, which is connected to a chiller.

6. The high-pressure-resistant bubble film forming machine according to claim 1, characterized in that, The winding system includes a winding roller and a winding motor. The winding roller is rotatably mounted on the frame, and the winding motor is mounted on the frame and is connected to the winding roller in a drive connection.

7. A high-pressure-resistant bubble wrap, produced using the high-pressure-resistant bubble wrap forming machine as described in claim 1, characterized in that... It includes a first film layer and a second film layer, with a plurality of bubbles formed between the first film layer and the second film layer, and each bubble containing a rubber particle.

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