Quick treatment device for film bubble breakage of film extrusion molding equipment

Abstract

The invention discloses a quick treatment device for film bubble breakage of film extrusion molding equipment. Comprising a pair of bubble extrusion traction rollers which are arranged in front of film bubbles according to the forward movement direction of a pipe film and used for extruding the film bubbles, and a pipe film terminal sending station which is arranged at the position close to the rear ends of the film bubbles at the initial position and used for firmly clamping the pipe film with the broken film bubbles and sending the pipe film to the positions of the pair of bubble extrusion traction rollers. The pipe film terminal sending station comprises a moving mechanism, a clamping module arranged on the moving mechanism, and a pair of sending station chucks which are arranged on the clamping module and are used for quickly clamping a pipe film terminal with a broken film bubble after the film bubble is broken; and a plurality of film bubble fracture detection sensors for detecting whether the film bubbles are fractured are arranged on the periphery of the film bubble position along the circumferential direction. According to the invention, the treatment speed after the film bubbles are broken in the film forming process is increased, and the defects that the conventional manual treatment needs to consume more labor and easily generates a large amount of waste are overcome.

Description

Technical Field

[0001] The invention relates to the technical field of film extrusion molding equipment, and in particular to a device for quickly handling film bubble rupture of film extrusion molding equipment. Background Art

[0002] Extrusion film forming equipment is a kind of equipment that produces film products (such as food packaging bags, etc.) through extrusion process. It can heat and melt plastic particles and blow them into films. According to the number of layers of the film, extrusion film forming equipment can also be divided into single-layer extrusion film forming equipment and multi-layer co-extrusion film forming equipment. The main components of extrusion film forming equipment include screw extruder, extrusion die, film blowing system, cooling system, winding system, etc.

[0003] The typical process of blown film using extrusion film forming equipment is as follows: the raw material is fed into the extrusion die through a screw extruder, and the molten material is extruded from the annular die of the extrusion die under pressure, and a relatively thick tube film is formed after cooling and shaping, and the front end of the tube film is clamped between a pair of bubble squeezing and traction rollers, and compressed air is filled into the tube film through the extrusion die, and a section of the tube film between the annular die of the extrusion die and the pair of bubble squeezing and traction rollers is blown (called primary film blowing), and the tube film is blown into a relatively thin-walled film bubble (called a primary film bubble), and the film bubble is pulled and flattened by a pair of bubble squeezing and traction rollers and then drawn out to form a film, which is wound by a winding device.

[0004] Due to the characteristics of their materials, some films need to be heated and shaped multiple times, and their dimensions need to be corrected during the production process. For this reason, it may be necessary to blow the film twice or even three times to make a film with ideal wall thickness and stable performance. That is, on the basis of the first blown film, the film drawn out by the squeezing and pulling rollers must be blown a second time to form a secondary film bubble. The secondary film bubble is pulled and flattened by a pair of squeezing and pulling rollers and then drawn out to form a film with thinner wall thickness. According to different needs, the film can also be blown three times. The film bubble formed is called a tertiary film bubble. After being pulled and flattened by a pair of squeezing and pulling rollers, it is drawn out to form the required final film. The final film is wound by a winding device. Through the second or third blowing, a film with a single-side wall thickness of no more than 0.05 mm can be made.

[0005] In the above-mentioned film blowing process using extrusion film forming equipment, secondary film bubbles and tertiary film bubbles need to be formed by artificial blowing in the initial stage of film production (called bubble making). Specifically, the operator holds an air gun to perform secondary air inflating on the film drawn out and flattened by a pair of extrusion traction rollers. The film after secondary air inflating is then clamped by the operator in a pair of extrusion traction rollers in front of the film moving direction, thereby forming secondary film bubbles between the front and rear extrusion traction rollers. Tertiary film bubbles can also be formed by the same operation.

[0006] The above-mentioned deficiencies in the film blowing molding process using the extrusion film molding equipment are: since the film material extruded from the mold may contain relatively large particles, the presence of the particles will affect the stability of the secondary or tertiary film bubbles in continuous production, causing the local strength of the film bubbles to drop sharply, leading to the rupture of the film bubbles. At present, the disposal of film bubble rupture in continuous production is a rather troublesome matter, which requires multiple operators at each station to work together to deal with it and make bubbles manually. If the bubble making time is too long due to the slow disposal speed, the film material coming out of the extrusion die in continuous production will be scrapped, generating a large amount of waste. Summary of the invention

[0007] In order to solve the above problems, the present invention proposes a device for quickly disposing of film bubble rupture in film extrusion molding equipment, which aims to improve the disposal speed after the film bubble ruptures in the film molding process, and overcome the disadvantages of conventional manual disposal that requires more labor and easily generates a large amount of waste. The specific technical solution is as follows: A device for quickly handling bubble rupture in film extrusion molding equipment, comprising a pair of bubble squeezing traction rollers arranged in front of the bubble in the direction of forward movement of the tube film for squeezing the bubble, a tube film terminal sending station whose initial position is arranged near the rear end of the bubble for clamping the tube film after the bubble ruptures and sending it to the position of the pair of bubble squeezing traction rollers, the tube film terminal sending station comprising a moving mechanism and a clamping module arranged on the moving mechanism, and a pair of sending station clamps arranged on the clamping module for quickly clamping the tube film terminal after the bubble ruptures; a number of bubble rupture detection sensors for detecting whether the bubble is ruptured are arranged circumferentially around the periphery of the bubble position.

[0008] Preferably, the bubble rupture detection sensor is an ultrasonic distance measuring sensor. By arranging a plurality of ultrasonic distance measuring sensors on the periphery of the bubble, the diameter of the bubble can be measured; after the bubble ruptures, the diameter of the bubble will decrease rapidly due to explosion and degassing, and then it may be pulled apart by the bubble squeezing and pulling roller. Therefore, by measuring the change in the diameter of the bubble, it is possible to determine whether the bubble has ruptured.

[0009] When the film bubble ruptures, a pair of sending station clamps can quickly clamp the tube film terminal after the film bubble ruptures, and quickly send the tube film terminal to a position close to a pair of bubble squeezing traction rollers through a moving mechanism; when the film bubble ruptures, the pair of bubble squeezing traction rollers will automatically open under the action of the control system of the film extrusion molding equipment. At this time, the operator at the position of the pair of bubble squeezing traction rollers can loosen the sending station clamps, take over the tube film terminal and pass it through the pair of bubble squeezing traction rollers, and then use an air gun to inflate the tube film terminal, so as to re-form the film bubble in the tube film. The size of the film bubble is adjusted according to the detection of the film bubble rupture detection sensor. After the inflation is in place, the pair of bubble squeezing traction rollers are closed again to clamp the tube film, and then other subsequent operations are carried out (such as connecting the tube film terminal to the winding device, etc.).

[0010] In order to improve the automation of rapid disposal after bubble rupture, further improvement plans are as follows: In the present invention, the pair of bubble squeezing traction rollers are opening and closing type bubble squeezing traction rollers that can be loosened and closed, and the tube film is provided with a turning device after being output from between the pair of bubble squeezing traction rollers. A tube film terminal receiving station for receiving the tube film terminals sent from the tube film terminal sending station to the position of the pair of bubble squeezing traction rollers is also provided at the output end position close to and opposite to the pair of bubble squeezing traction rollers. The tube film terminal receiving station includes a moving mechanism and a clamping module arranged on the moving mechanism, and a pair of receiving station clamps arranged on the clamping module for quickly clamping the rear end of the bubble when the bubble ruptures.

[0011] As one of the preferred solutions of the moving mechanism in the present invention, the moving mechanism used by the tube film terminal sending station is a manipulator, and the clamping module is arranged at the cantilever end of the manipulator.

[0012] As a second preferred solution of the moving mechanism in the present invention, the moving mechanism used in the tube film terminal sending station is a linear moving mechanism, which includes a moving plate moving in a linear direction, and the clamping module is mounted on the moving plate.

[0013] By setting a tube film terminal receiving station in front of a pair of bubble squeezing and traction rollers, the operator can remove the tube film terminal from a pair of sending station clamps and clamp it on a pair of receiving station clamps, and then move the tube film terminal through the pair of bubble squeezing and traction rollers through the moving mechanism, thereby eliminating the need for the operator to perform the crossing operation of the tube film terminal.

[0014] In order to further improve the automation of rapid disposal after bubble rupture, further improvement plans are as follows: The closure of the present invention is a device for quickly handling bubble rupture of an extruded film forming device, wherein an automatic tube film bubbler is detachably provided on a pair of sending station chucks located at the tube film terminal sending station, and the automatic tube film bubbler comprises a pair of inflation clamps detachably provided on the pair of sending station chucks for clamping the tube film terminal, a pair of extension blocks provided at the rear outer side of the inflation clamps and extending toward the rear, an air blowing needle provided at the inner side of one of the pair of extension blocks for inflating the inside of the tube film terminal, a pair of film suction cylinders provided at both sides of the rear of the tube film terminal, and a vacuum suction cup provided at the front end of the piston rod of the film suction cylinder, wherein the pair of vacuum suction cups of the pair of film suction cylinders are respectively disposed at both sides of the extension block; and a detachable connection structure is provided between the inflation clamps and the sending station chucks.

[0015] The inner side position of the extension block refers to the side position directly opposite to the tubular membrane.

[0016] Preferably, a pair of cutters for shearing each other are provided at the front end of the pair of inflatable clamping blocks, so that the pair of inflatable clamping blocks can clamp the tubular membrane terminal and cut off the excess tubular membrane waste adhering to the tubular membrane terminal at the same time.

[0017] Preferably, a multi-axis tubular film waste material taking-away multi-axis robotic arm for taking away the cut excess tubular film waste is also provided on the frame of the film extrusion molding equipment, and a tubular film waste material taking-away suction cup is provided at the cantilever end of the robotic arm.

[0018] In the present invention, the air blowing needle includes an air blowing tube for connecting to a compressed air source, a conical needle transitionally connected to the end of the air blowing tube, and an air blowing hole arranged on the outer circle of the front end of the air blowing tube or on the conical needle and connected to the inner hole of the air blowing tube; a compressed air inflation passage is arranged inside the inflatable clamping block, and the air blowing tube of the air blowing needle is fixed on the inner side of the extension block and is connected to the compressed air inflation passage on the inflatable clamping block.

[0019] Preferably, the blowing hole is toward the rear of the moving direction of the tubular membrane.

[0020] In the present invention, the film-absorbing cylinders are mounted on the moving plate of the moving mechanism. There are two pairs (ie four) of film-absorbing cylinders, and the two pairs of film-absorbing cylinders are respectively placed on both sides of the tube film.

[0021] The working principle of the automatic tube film bubbler in the present invention is as follows: after the inflation clamp clamps the tube film terminal, two pairs of film suction cylinders arranged on the movable plate drive the piston rods to approach the tube film from both sides of the tube film at the same time, so that the vacuum suction cups at the ends of the piston rods of the film suction cylinders on both sides correspondingly suck the two sides of the tube film, and then the piston rods of the film suction cylinders retreat, thereby pulling open the flat tube film; when the tube film is pulled open, the tube wall of the tube film will move toward the direction of the blowing needle, so that the blowing needle passively penetrates into the inside of the tube film; the control system of the extrusion film forming equipment can realize automatic bubbling of the tube film by turning on the compressed air source.

[0022] In the present invention, the detachable connection structure between the inflatable clamp block and the sending station clamp is as follows: a pair of first positioning pins are provided on the side of the inflatable clamp block that abuts against the sending station clamp, and a pair of first positioning holes are correspondingly provided on the side of the sending station clamp that abuts against the inflatable clamp block. The pair of first positioning pins on the inflatable clamp block are correspondingly inserted into the pair of first positioning holes, and the planes between the inflatable clamp block and the sending station clamp are abutted against each other.

[0023] Preferably, a guiding cone surface is provided at the end of the first positioning pin.

[0024] It should be particularly pointed out that the first positioning pin may be arranged on the sending station clamp, and the first positioning hole may be arranged on the inflatable clamp block, which can also realize a detachable connection structure between the inflatable clamp block and the sending station clamp.

[0025] Preferably, one of a pair of connecting surfaces between the inflatable clamp block and the sending station clamp is a magnet surface and the other is a steel plate surface, so that the inflatable clamp block and the sending station clamp can attract each other after being positioned and connected without dispersing, and can still maintain the separable structural characteristics.

[0026] In the present invention, an automatically inflated sending-end docking air circuit structure is also provided between the sending station chuck and the inflatable clamp block, and the sending-end docking air circuit structure is as follows: a first compressed air receiving hole connected to the compressed air inflation passage is provided on the outer end face of the inflatable clamp block, and an inflation one-way valve is provided in the first compressed air receiving hole; an inflation docking air circuit that is docked and connected to the first compressed air receiving hole of the inflatable clamp block is provided on the sending station chuck, and the inflation docking air circuit is connected to an external compressed air source through an inflation pipeline.

[0027] Preferably, a first overload pressure relief hole connected to the compressed air inflation passage is also provided on the outer end face of the inflatable clamp, and an exhaust one-way valve is provided in the first overload pressure relief hole; and a first overload pressure relief docking air path connected to the first overload pressure relief hole of the inflatable clamp is provided on the sending station clamp.

[0028] More preferably, the first overload pressure relief air path is connected to an external vacuum hole device through an overload pressure relief pipeline, which can speed up the overload pressure relief speed and can also be used to unload part of the air inside the bubble when the bubble size is too large due to excessive inflation, thereby controlling the bubble size within a predetermined range.

[0029] By setting up the automatic bubble blower for the tube film, it is possible to inflate the inside of the tube film throughout the entire process when the tube film terminal moves toward a pair of bubble squeezing and traction rollers, thereby not only eliminating the need for manual inflation but also improving the efficiency of rapid disposal of film bubble rupture.

[0030] In order to further improve the automation of rapid disposal after bubble rupture, further improvement plans are as follows: In the present invention, a detachable connection structure is provided between the inflatable clamp block and the receiving station clamp, and the detachable connection structure between the inflatable clamp block and the receiving station clamp is as follows: a pair of second positioning pins are provided on the side of the inflatable clamp block that abuts against the receiving station clamp, and a pair of second positioning holes are correspondingly provided on the side of the receiving station clamp that abuts against the inflatable clamp block, the pair of second positioning pins on the inflatable clamp block are correspondingly inserted into the pair of second positioning holes, and the planes between the inflatable clamp block and the receiving station clamp are abutted against each other.

[0031] Preferably, a guiding cone surface is provided at the end of the second positioning pin.

[0032] It should be particularly pointed out that the second positioning pin can also be set on the receiving station clamp, and the second positioning hole can be set on the inflatable clamp block, which can also realize a detachable connection structure between the inflatable clamp block and the receiving station clamp.

[0033] Preferably, in order to achieve precise docking, a docking distance measuring sensor for detecting the distance between the sending station chuck and the receiving station chuck is further provided on the sending station chuck or the receiving station chuck.

[0034] In the present invention, an automatically inflated receiving end docking air path structure is also provided between the receiving station chuck and the inflatable clamp block, and the receiving end docking air path structure is as follows: a second compressed air receiving hole connected to the compressed air inflation path is provided on the outer end face of the inflatable clamp block, and an inflation one-way valve is provided in the second compressed air receiving hole; an inflation docking air path that is docked and connected to the second compressed air receiving hole of the inflatable clamp block is provided on the receiving station chuck, and the inflation docking air path is connected to an external compressed air source through an inflation pipeline.

[0035] By providing a detachable connection structure between the inflation clamp and the receiving station clamp, and also providing an automatically inflated receiving end docking gas path structure between the receiving station clamp and the inflation clamp, continuous inflation of the tube film can be achieved after the tube film terminal passes through a pair of bubble squeezing traction rollers. During the continuous inflation process, the tube film terminal sending station can quickly move and reset to the initial position after transferring a pair of inflation clamps to the tube film terminal receiving station, so that the tube film can realize the closing and reset of a pair of bubble squeezing traction rollers in time after the inflation is in place, so as to re-form the film bubble required for the extrusion film forming process, thereby further improving the automation of rapid disposal after the film bubble ruptures.

[0036] Preferably, a second overload pressure relief hole connected to the compressed air inflation passage is also provided on the outer end face of the inflatable clamp, and an exhaust one-way valve is provided in the second overload pressure relief hole; and a second overload pressure relief docking air path connected to the second overload pressure relief hole of the inflatable clamp is provided on the receiving station clamp.

[0037] More preferably, the second overload pressure relief air path is connected to an external extraction hole device through the overload pressure relief pipeline, which can speed up the overload pressure relief speed, and can also be used to unload part of the air inside the bubble when the bubble size is too large due to excessive inflation, thereby controlling the bubble size within a predetermined range; moreover, after inflation is in place and a pair of bubble squeezing traction rollers clamp the tube film to form a stable bubble, the extraction hole device can also be used to discharge excess air inside the tube film pulled by the bubble squeezing traction rollers, thereby greatly facilitating other subsequent operations, such as directly connecting to the winding device (suitable for direct winding after bubble forming), or passing the tube film terminal through the next pair of bubble squeezing traction rollers for re-bubble making operation (suitable for re-bubble making operation after bubble forming).

[0038] The present invention can effectively prevent the rupture of the membrane bubble during the bubble making process due to excessive automatic inflation by arranging the first overload pressure relief hole and the second overload pressure relief hole on the inflation clamp, and has good safety. In addition, the first overload pressure relief hole or the second overload pressure relief hole can also be used to adjust the size of the membrane bubble after being connected to the vacuum extraction device, so that the size of the over-inflated membrane bubble can be restored to the set value, thereby further improving the dimensional accuracy of the membrane bubble.

[0039] A method for quickly dealing with film bubble rupture in an extrusion film forming device comprises the following steps: S1. Bubble monitoring: The control system of the extrusion film forming equipment obtains the bubble status through the bubble rupture detection sensor located on the periphery of the bubble; S2. Clamping of tube film terminals: When the membrane bubble rupture detection sensor detects that the membrane bubble has ruptured, a pair of sending station clamps located on the tube film terminal sending station will immediately move, driving a pair of inflatable clamps on a pair of sending station clamps to close, thereby clamping the tube film terminal after the membrane bubble has ruptured; S3, cutting and cleaning of the tubular film terminal: while the pair of inflatable clamps are closed, the cutter located at the front end of the pair of inflatable clamps cuts off the excess tubular film waste adhering to the tubular film terminal; after the excess tubular film waste on the tubular film terminal is cut off, the multi-axis robotic arm for taking away the excess tubular film waste cut off is used; S4, synchronous rapid post-processing after cutting and cleaning of tube film terminals: It includes the following contents: (1) Inflation of the tube film terminal: Open the two pairs of film suction cylinders located on both sides of the rear of the tube film terminal. The vacuum suction cups on the piston rods of the film suction cylinders suck the flat tube film from both sides and pull the tube film apart. When the tube film is pulled apart, the tube wall of the tube film will move toward the blowing needle on the inflation clamp, so that the blowing needle passively penetrates into the tube film. After it is in place, the control system of the extrusion film forming equipment turns on the compressed air source, and the compressed air enters the blowing needle for blowing, thereby realizing automatic bubble blowing of the tube film. (2) Movement of the tube film terminal: While the tube film terminal is inflated, the moving mechanism located at the tube film terminal sending station moves to send the tube film terminal to a pair of bubble squeezing and traction rollers; (3) Tube film terminal relay and inflation: While the tube film terminal is moving, the control system opens a pair of squeezing and pulling rollers, and then the moving mechanism at the tube film terminal receiving station is actuated. A pair of receiving station clamps on the tube film terminal receiving station move toward the pair of squeezing and pulling rollers and pass through the pair of squeezing and pulling rollers, and then further move to the inflation clamp located on the pair of sending station clamps and engage with the inflation clamp. The pair of receiving station clamps are opened to clamp the inflation clamp in place. After it is in place, the pair of sending station clamps are released, thereby completing the transfer of the inflation clamp from the tube film terminal sending station to the tube film terminal receiving station. After the transfer of the inflation clamp is completed, the tube film terminal receiving station provides compressed air to continue the inflation operation. The tube film terminal sending station that has completed the inflation operation is reset to its initial position through its moving mechanism. (4) The tube film terminal passes through a pair of squeezing and pulling rollers: While the tube film terminal is being relayed and inflated, the tube film terminal receiving station is reset to the initial position through its moving mechanism. During the process of the tube film terminal receiving station being reset to the initial position, the receiving station clamp above it drives the tube film terminal to pass through a pair of squeezing and pulling rollers; S4. Clamping and resetting of bubble squeezing traction rollers: After the tube film terminal passes through a pair of bubble squeezing traction rollers, the control system drives the pair of bubble squeezing traction rollers to close and reset, thereby forming a film bubble required for the film extrusion molding process in a section of the tube film between the initial position of the tube film terminal sending station and the pair of bubble squeezing traction rollers; the size of the film bubble is obtained by the control system controlling the inflation amount during the inflation process according to the detection data of the film bubble rupture detection sensor.

[0040] Preferably, after the squeezing and pulling rollers are clamped and reset in step S4, the control system also uses a vacuum device configured at the tube film terminal receiving station to quickly remove the air in a section of the tube film between the pair of squeezing and pulling rollers and the pair of inflatable clamps, so as to facilitate subsequent further treatment operations. For example, the tube film terminal is connected to a winding device, etc.

[0041] Preferably, the film bubble rupture rapid disposal device of the present invention can also be applied to the bubble making operation during the initial operation of the extrusion film forming equipment. The specific method is to set the tube film terminal sending station at the position of the cooling air ring, and the setting position of the tube film terminal receiving station remains unchanged; after the tube film of the extrusion film forming equipment comes out of the cooling air ring, immediately start the film bubble rupture rapid disposal device, so that a pair of sending station clamps located on the tube film terminal sending station immediately move, drive a pair of inflatable clamps on a pair of sending station clamps to close, thereby clamping the tube film terminal coming out of the cooling air ring; the subsequent operation steps after the tube film terminal is clamped are the same as the operation steps after the tube film terminal is clamped after the film bubble ruptures.

[0042] Preferably, the linear moving mechanism used in the tube film terminal sending station can adopt a linear guide rail, and the moving plate is installed on a slide seat of the linear guide rail, and the slide seat is connected to a screw transmission mechanism driven by a servo reduction motor.

[0043] Preferably, the linear moving mechanism used by the tube film terminal receiving station can adopt a servo electric push rod, and the receiving station chuck is arranged at the end of the telescopic rod of the servo electric push rod.

[0044] Preferably, the clamping module used in the tube film terminal sending station adopts a pair of synchronous telescopic cylinders, and the pair of sending station chucks are correspondingly arranged on the ends of the piston rods of a pair of synchronous telescopic cylinders. The synchronous telescopic cylinders are fixed on the movable plate and are arranged on both sides of the membrane bubble. The movable plate is provided with an inner hole for the membrane bubble to pass through.

[0045] Preferably, the synchronous telescopic cylinder adopts a multi-axis cylinder.

[0046] In the present invention, when the tube film blowing process of the extrusion film forming equipment adopts an upward blowing or downward blowing process, the movable plate is actually a lifting movable plate.

[0047] Preferably, the clamping module used in the tube film terminal receiving station adopts a finger cylinder with its finger direction pointing to a pair of bubble squeezing and pulling rollers, and a pair of air claws of the finger cylinder serve as the pair of receiving station chucks.

[0048] The beneficial effects of the present invention are: First, a device for quickly handling bubble rupture in an extrusion film forming device of the present invention realizes the rapid movement of the tube film terminal toward a pair of bubble extrusion traction rollers after the bubble ruptures through a specially arranged tube film terminal sending station, thereby improving the rapid handling speed after the bubble ruptures.

[0049] Secondly, a device for quickly handling bubble rupture in an extrusion film forming device of the present invention is provided with an automatic bubble blower for the tube film, so that the tube film terminal can be quickly inflated and bubbled during its rapid movement toward a pair of bubble extrusion traction rollers, thereby further improving the speed of rapid handling after the bubble ruptures.

[0050] Thirdly, a device for quickly handling bubble rupture in an extrusion film forming device of the present invention can overcome the disadvantage of slow speed of the tube film terminal passing through the bubble extrusion traction roller when manual operation is used in the traditional handling method through the synergistic effect of the tube film terminal sending station and the tube film terminal receiving station, thereby further improving the speed of rapid handling after the bubble ruptures.

[0051] Fourthly, the device for quickly handling bubble rupture of an extrusion film forming device of the present invention, in which operations such as inflation of the tube film terminal, movement of the tube film terminal, relay and inflation of the tube film terminal, and passage of the tube film terminal through a pair of bubble extrusion traction rollers are performed almost in the same time period, and its high-efficiency handling speed can overcome the disadvantages of film material accumulation and easy failure of artificial bubble making which may be caused by manual handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is one of the structural schematic diagrams of a film bubble rupture rapid disposal device of an extrusion film forming device of the present invention (a state diagram of the tube film terminal sending station in the initial position); Figure 2 This is the second structural schematic diagram of a film bubble rupture rapid disposal device of an extrusion film forming device of the present invention (a state diagram of a tube film terminal sending station in an initial position performing rapid disposal when a film bubble rupture occurs, clamping the tube film terminal and inflating it); Figure 3 yes Figure 2 A partial enlarged schematic diagram of the inflatable clamping block part involved in the invention; Figure 4 It is the third structural schematic diagram of a film bubble rupture rapid disposal device of an extrusion film forming equipment of the present invention (a state diagram of a tube film terminal sending station and a tube film terminal receiving station being moved and docked); Figure 5 yes Figure 4 A local enlarged schematic diagram of the docking part; Figure 6This is the fourth structural schematic diagram of a device for quickly handling bubble rupture in an extrusion film forming device of the present invention (a state diagram after the tube film terminal sending station and the tube film terminal receiving station are respectively reset after docking, a pair of bubble extrusion traction rollers are reset, and the tube film bubble making is completed).

[0053] In the figure: 201, tube film, 202, film bubble, 203, bubble squeezing traction roller, 204, tube film terminal sending station, 205, moving mechanism, 206, clamping module, 207, tube film terminal, 208, sending station chuck, 209, film bubble rupture detection sensor, 210, tube film terminal receiving station, 211, receiving station chuck, 212, moving plate, 213, tube film automatic bubble blower, 214, inflation clamp block, 215, extension block, 216, air blowing needle, 217, film suction cylinder, 218, vacuum suction cup, 219, cutter, 220, air blowing tube, 221, conical needle, 222, air blowing hole, 223, compressed air inflation passage, 224, first positioning pin, 225. First compressed air receiving hole, 226. Inflating one-way valve, 227. Inflating docking air path, 228. First overload pressure relief hole, 229. Exhaust one-way valve, 230. First overload pressure relief docking air path, 231. Second positioning pin, 232. Second compressed air receiving hole, 233. Second overload pressure relief hole, 234. Second overload pressure relief docking air path, 235. Docking distance measuring sensor, 236. Cooling air ring. DETAILED DESCRIPTION

[0054] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention. Example

[0055] like Figures 1 to 6 The figure shows an embodiment of a film bubble rupture rapid disposal device of an extrusion film forming equipment of the present invention, comprising a pair of bubble squeezing traction rollers 203 arranged in front of a film bubble 202 according to the direction of forward movement of the film tube 201 for squeezing the film bubble, a film terminal sending station 204 whose initial position is arranged near the rear end of the film bubble 202 for clamping the film tube 201 after the film bubble 202 is ruptured and sending it to the position of the pair of bubble squeezing traction rollers 203, the film terminal sending station 204 comprising a moving mechanism 205 and a clamping module 206 arranged on the moving mechanism 205, a pair of sending station clamps 208 arranged on the clamping module 206 for quickly clamping the film tube terminal 207 after the film bubble 202 is ruptured; a plurality of film bubble rupture detection sensors 209 for detecting whether the film bubble is ruptured are arranged circumferentially around the periphery of the film bubble 202.

[0056] Preferably, the bubble rupture detection sensor 209 is an ultrasonic distance measuring sensor. The diameter of the bubble 202 can be measured by arranging a plurality of ultrasonic distance measuring sensors on the periphery of the bubble 202. After the bubble 202 ruptures, the diameter of the bubble 202 decreases rapidly due to explosion and degassing, and then may be pulled apart by the bubble squeezing and pulling roller 203. Therefore, by measuring the change in the diameter of the bubble 202, it is possible to determine whether the bubble 202 is ruptured.

[0057] When the film bubble ruptures, a pair of sending station clamps 208 can quickly clamp the tube film terminal 207 after the film bubble ruptures, and quickly send the tube film terminal 207 to a position close to a pair of bubble squeezing traction rollers 203 through the moving mechanism 205; the pair of bubble squeezing traction rollers 203 will automatically open under the action of the control system of the film extrusion molding equipment when the film bubble ruptures. At this time, the operator at the position of the pair of bubble squeezing traction rollers 203 can loosen the sending station clamps 208, take over the tube film terminal 207 and pass it through the pair of bubble squeezing traction rollers 203, and then use an inflation gun to inflate the tube film terminal 207, so as to re-form the film bubble in the tube film 201. The size of the film bubble is adjusted according to the detection of the film bubble rupture detection sensor 209. After inflation is in place, the pair of bubble squeezing traction rollers 203 are closed again to clamp the tube film 201, and then other subsequent operations are performed (such as connecting the tube film terminal 207 to the winding device, etc.).

[0058] In order to improve the automation of rapid disposal after bubble rupture, further improvement plans are as follows: In this embodiment, the pair of bubble squeezing traction rollers 203 are open and close type bubble squeezing traction rollers 203 that can be loosened and closed. The tube film 201 is provided with a turning direction after being output from between the pair of bubble squeezing traction rollers 203. A tube film terminal receiving station 210 is also provided at the output end position close to and opposite to the pair of bubble squeezing traction rollers 203 for receiving the tube film terminal 207 sent from the tube film terminal sending station 204 to the position of the pair of bubble squeezing traction rollers 203. The tube film terminal receiving station 210 includes a moving mechanism 205 and a clamping module 206 arranged on the moving mechanism 205, and a pair of receiving station clamps 211 arranged on the clamping module 206 for quickly clamping the rear end of the bubble when the bubble ruptures.

[0059] As one of the preferred solutions of the moving mechanism in this embodiment, the moving mechanism 205 used by the tube film terminal sending station 204 is a manipulator, and the clamping module 206 is arranged at the cantilever end of the manipulator.

[0060] As the second preferred solution of the moving mechanism in this embodiment, the moving mechanism 205 used by the tube film terminal sending station 204 is a linear moving mechanism, which includes a moving plate 212 moving in a linear direction, and the clamping module 206 is installed on the moving plate 212.

[0061] By setting the tube film terminal receiving station 210 in front of a pair of bubble squeezing traction rollers 203, the operator can remove the tube film terminal 207 from the pair of sending station clamps 208 and clamp it on a pair of receiving station clamps 211, and then move the tube film terminal 207 through the pair of bubble squeezing traction rollers 203 through the moving mechanism 205, thereby eliminating the need for the operator to perform the crossing operation of the tube film terminal 207.

[0062] In order to further improve the automation of rapid disposal after bubble rupture, further improvement plans are as follows: In the present embodiment, a film bubble rupture quick disposal device of an extruded film forming device is provided with an automatic film bubble blower 213 detachably provided on the pair of sending station clamps 208 located at the film terminal sending station 204, and the automatic film bubble blower 213 includes a pair of inflatable clamping blocks 214 detachably provided on the pair of sending station clamps 208 for clamping the film terminal 207, a pair of extension blocks 215 provided at the rear of the inflatable clamping blocks 214 and extending toward the rear, and a pair of inflatable clamping blocks 216 provided at the rear of the inflatable clamping blocks 214 and extending toward the rear. A blowing needle 216 for inflating the inside of the tube film terminal 207 is provided on the inner side of one of the extension blocks 215 in the pair of extension blocks 215, a pair of film suction cylinders 217 are provided on both sides of the rear part of the tube film terminal 207, and a vacuum suction cup 218 is provided at the front end of the piston rod of the film suction cylinder 217. The pair of vacuum suction cups 218 of the pair of film suction cylinders 217 are respectively provided on both sides of the extension block 215; a detachable connection structure is provided between the inflation clamp 214 and the sending station clamp 208.

[0063] The inner side of the extension block 215 refers to the side directly facing the tubular membrane 201 .

[0064] Preferably, a pair of cutters 219 for shearing each other are provided at the front end of the pair of inflatable clamping blocks 214, so that the pair of inflatable clamping blocks 214 can clamp the tubular film terminal 207 while cutting off the excess tubular film waste adhering to the tubular film terminal 207.

[0065] Preferably, a multi-axis tubular film waste material taking-away multi-axis robotic arm (not shown) for taking away the cut excess tubular film waste is also provided on the frame of the extrusion film forming equipment, and a tubular film waste material taking-away suction cup is provided at the cantilever end of the robotic arm.

[0066] In this embodiment, the blowing needle 216 includes a blowing tube 220 for connecting to a compressed air source, a conical needle 221 transitionally connected to the end of the blowing tube 220, and a blowing hole 222 arranged on the outer circle of the front end of the blowing tube 220 or on the conical needle 221 and connected to the inner hole of the blowing tube 220; a compressed air inflation passage 223 is arranged inside the inflation clamp 214, and the blowing tube 220 of the blowing needle 216 is fixed on the inner side of the extension block 215 and is connected to the compressed air inflation passage 223 on the inflation clamp 214.

[0067] Preferably, the blowing hole 222 faces rearward of the moving direction of the tubular membrane 201 .

[0068] In this embodiment, the film suction cylinders 217 are installed on the moving plate 212 of the moving mechanism 205. There are two pairs (ie, four) of film suction cylinders 217, and the two pairs of film suction cylinders 217 are placed on both sides of the tube film 201.

[0069] The working principle of the automatic tube film bubbler 213 in this embodiment is as follows: after the inflation clamp 214 clamps the tube film terminal 207, two pairs of film suction cylinders 217 arranged on the movable plate 212 drive the piston rods to approach the tube film 201 from both sides of the tube film 201 at the same time, so that the vacuum suction cups 218 at the ends of the piston rods of the film suction cylinders 217 on both sides correspondingly suck the two sides of the tube film 201, and then the piston rods of the film suction cylinders 217 retreat, thereby pulling open the flat tube film 201; when the tube film 201 is pulled open, the tube wall of the tube film 201 will move toward the blowing needle 216, so that the blowing needle 216 passively penetrates into the inside of the tube film 201; the control system of the extrusion film molding equipment can realize automatic bubbling of the tube film 201 by turning on the compressed air source.

[0070] In this embodiment, the detachable connection structure between the inflatable clamp block 214 and the sending station clamp 208 is as follows: a pair of first positioning pins 224 are provided on the side of the inflatable clamp block 214 that abuts against the sending station clamp 208, and a pair of first positioning holes are correspondingly provided on the side of the sending station clamp 208 that abuts against the inflatable clamp block 214. The pair of first positioning pins 224 on the inflatable clamp block 214 are correspondingly inserted into the pair of first positioning holes, and the planes between the inflatable clamp block 214 and the sending station clamp 208 are abutted against each other.

[0071] Preferably, a guiding cone surface is provided at the end of the first positioning pin 224 .

[0072] It should be particularly pointed out that the first positioning pin 224 can also be set on the sending station clamp 208, and the first positioning hole can be set on the inflatable clamp block 214, which can also realize a detachable connection structure between the inflatable clamp block 214 and the sending station clamp 208.

[0073] Preferably, one of a pair of connecting surfaces between the inflatable clamp block 214 and the sending station clamp 208 is a magnet surface and the other is a steel plate surface, so that the inflatable clamp block 214 and the sending station clamp 208 can attract each other after being positioned and connected without dispersing, and can still maintain the separable structural characteristics.

[0074] In this embodiment, an automatically inflated sending-end docking air circuit structure is also provided between the sending station chuck 208 and the inflatable clamp block 214, and the sending-end docking air circuit structure is as follows: a first compressed air receiving hole 225 connected to the compressed air inflation passage 223 is provided on the outer end face of the inflatable clamp block 214, and an inflation one-way valve 226 is provided in the first compressed air receiving hole 225; an inflation docking air circuit 227 is provided on the sending station chuck 208 and is docked and connected to the first compressed air receiving hole 225 of the inflatable clamp block 214, and the inflation docking air circuit 227 is connected to an external compressed air source through an inflation pipeline.

[0075] Preferably, a first overload pressure relief hole 228 connected to the compressed air charging passage 223 is also provided on the outer end face of the inflatable clamp 214, and an exhaust check valve 229 is provided in the first overload pressure relief hole 228; a first overload pressure relief docking air path 230 that is docked and connected to the first overload pressure relief hole 228 of the inflatable clamp 214 is provided on the sending station clamp 208.

[0076] More preferably, the first overload pressure relief docking air circuit 230 is externally connected to a vacuum hole device through an overload pressure relief pipeline, which can speed up the overload pressure relief speed and can also be used to unload part of the air inside the bubble when the bubble size is too large due to excessive inflation, thereby controlling the bubble size within a predetermined range.

[0077] By setting the above-mentioned automatic tube film bubble blower 213, it is possible to achieve full inflation of the interior of the tube film 201 during the process of the tube film terminal 297 moving toward a pair of bubble squeezing and traction rollers 203, thereby not only eliminating the need for manual inflation operations but also improving the efficiency of rapid disposal of film bubble rupture.

[0078] In order to further improve the automation of rapid disposal after bubble rupture, further improvement plans are as follows: In this embodiment, a detachable connection structure is provided between the inflatable clamp block 214 and the receiving station clamp 211, and the detachable connection structure between the inflatable clamp block 214 and the receiving station clamp 211 is as follows: a pair of second positioning pins 231 are provided on the side of the inflatable clamp block 214 that abuts against the receiving station clamp 211, and a pair of second positioning holes are correspondingly provided on the side of the receiving station clamp 211 that abuts against the inflatable clamp block 214. The pair of second positioning pins 231 on the inflatable clamp block 214 are correspondingly inserted into the pair of second positioning holes, and the planes between the inflatable clamp block 214 and the receiving station clamp 211 are abutted against each other.

[0079] Preferably, a guiding cone surface is provided at the end of the second positioning pin 231 .

[0080] It should be particularly pointed out that the second positioning pin 231 can also be set on the receiving station clamp 211, and the second positioning hole can be set on the inflatable clamp block 214, which can also realize a detachable connection structure between the inflatable clamp block 214 and the receiving station clamp 211.

[0081] Preferably, in order to achieve precise docking, a docking distance sensor 235 for detecting the distance between the sending station chuck and the receiving station chuck is further provided on the sending station chuck 208 or the receiving station chuck 211 .

[0082] In this embodiment, an automatically inflated receiving end docking air path structure is also provided between the receiving station chuck 211 and the inflatable clamp block 214, and the receiving end docking air path structure is as follows: a second compressed air receiving hole 232 connected to the compressed air inflation passage 223 is provided on the outer end face of the inflatable clamp block 214, and an inflation one-way valve 226 is provided in the second compressed air receiving hole 232; an inflation docking air path 227 is provided on the receiving station chuck 211, and the inflation docking air path 227 is connected to an external compressed air source through an inflation pipeline.

[0083] By providing a detachable connection structure between the inflation clamp block 214 and the receiving station clamp 211, and also providing an automatically inflated receiving end docking gas path structure between the receiving station clamp 211 and the inflation clamp block 214, continuous inflation of the tube film 201 can be achieved after the tube film terminal 207 passes through a pair of bubble squeezing and pulling rollers 203. During the continuous inflation process, the tube film terminal sending station 204 can quickly move and reset to the initial position after transferring a pair of inflation clamp blocks 214 to the tube film terminal receiving station 210, so that the tube film 201 can realize the closing and reset of a pair of bubble squeezing and pulling rollers 203 in time after being inflated, so as to re-form the film bubble 202 required for the extrusion film forming process, thereby further improving the automation of rapid disposal after the film bubble ruptures.

[0084] Preferably, a second overload pressure relief hole 233 connected to the compressed air charging passage 223 is also provided on the outer end face of the inflatable clamp 214, and an exhaust check valve 229 is provided in the second overload pressure relief hole 233; a second overload pressure relief docking air path 234 which is docked and connected to the second overload pressure relief hole 233 of the inflatable clamp 214 is provided on the receiving station clamp 211.

[0085] More preferably, the second overload pressure relief docking air circuit 234 is externally connected to a vacuum hole device through an overload pressure relief pipeline, which can speed up the overload pressure relief speed, and can also be used to unload part of the air inside the bubble when the bubble size is too large due to excessive inflation, thereby controlling the bubble size within a predetermined range; moreover, after inflation is in place and a pair of bubble squeezing traction rollers 203 clamp the tube film 201 to form a stable bubble, the excess air inside the tube film pulled by the bubble squeezing traction rollers 203 can be discharged through the vacuum hole device, thereby greatly facilitating other subsequent operations, such as directly connecting to a winding device (suitable for direct winding after bubble forming), or passing the tube film terminal through the next pair of bubble squeezing traction rollers for re-bubble making operation (suitable for re-bubble making operation after bubble forming).

[0086] This embodiment can effectively prevent the rupture of the membrane bubble during the bubble making process due to excessive automatic inflation by arranging the first overload pressure relief hole 228 and the second overload pressure relief hole 233 on the inflation clamp 214, and has good safety. In addition, the first overload pressure relief hole 228 or the second overload pressure relief hole 233 can also be used to adjust the size of the membrane bubble after being connected to the vacuum extraction device, so that the size of the over-inflated membrane bubble can be restored to the set value, thereby further improving the dimensional accuracy of the membrane bubble. Example

[0087] A method for quickly dealing with film bubble rupture in an extrusion film forming device comprises the following steps: S1. Bubble monitoring: The control system of the extrusion film forming equipment obtains the bubble status through the bubble rupture detection sensor 209 located on the periphery of the bubble 202; S2. Clamping the tube film terminal: When the film bubble rupture detection sensor 209 detects that the film bubble 202 is ruptured, a pair of sending station clamps 208 located on the tube film terminal sending station 204 immediately actuates, driving a pair of inflatable clamps 214 on a pair of sending station clamps 208 to close, thereby clamping the tube film terminal 207 after the film bubble is ruptured; S3, cutting and cleaning of the tubular film terminal: while the pair of inflatable clamping blocks 214 are closed, the cutter 219 located at the front end of the pair of inflatable clamping blocks 214 cuts off the excess tubular film waste adhered to the tubular film terminal 207; after the excess tubular film waste on the tubular film terminal 207 is cut off, the tubular film waste taking multi-axis robot arm takes away the cut excess tubular film waste; S4, synchronous rapid post-processing after cutting and cleaning of tube film terminals: It includes the following contents: (1) Inflation of the tube film terminal: The two pairs of film suction cylinders 217 located on both sides of the rear part of the tube film terminal 207 are turned on, and the vacuum suction cups 218 on the piston rods of the film suction cylinders 217 suck the flat tube film 210 from both sides and pull the tube film 210 apart; when the tube film 201 is pulled apart, the tube wall of the tube film 201 will move toward the blowing needle 216 on the inflation clamp 214, so that the blowing needle 216 passively penetrates into the tube film 201; after it is in place, the control system of the extrusion film forming equipment turns on the compressed air source, and the compressed air enters the blowing needle 216 for blowing, thereby realizing automatic bubbling of the tube film 201; (2) Movement of the tube film terminal: While the tube film terminal 207 is inflated, the moving mechanism 205 located at the tube film terminal sending station 204 is actuated to send the tube film terminal 207 to a pair of bubble squeezing and pulling rollers 203; (3) Tube film terminal relay and inflation: When the tube film terminal 207 moves, the control system opens the pair of squeezing and pulling rollers 203, and then the moving mechanism 205 located at the tube film terminal receiving station 210 is activated. The pair of receiving station clamps 211 on the tube film terminal receiving station 210 move toward the pair of squeezing and pulling rollers 203 and pass through the pair of squeezing and pulling rollers 203, and then further move to the inflation clamp 214 located on the pair of sending station clamps 208 and contact with the inflation clamp 214. The pair of receiving station clamps 211 are opened to clamp the inflation clamp 214 in place. After it is in place, the pair of sending station clamps 208 are released, thereby completing the transfer of the inflation clamp 214 from the tube film terminal sending station 204 to the tube film terminal receiving station 210; after the transfer of the inflation clamp 214 is completed, the tube film terminal receiving station 210 provides compressed air to continue the inflation operation; the tube film terminal sending station 204 that has completed the inflation operation is reset to the initial position through its moving mechanism 205; (4) The tube film terminal passes through a pair of squeezing and pulling rollers: While the tube film terminal 207 is relaying and inflating, the tube film terminal receiving station 210 is reset to the initial position through its moving mechanism 205. During the process of the tube film terminal receiving station 205 being reset to the initial position, the receiving station clamp 211 on the tube film terminal receiving station 205 drives the tube film terminal 207 to pass through the pair of squeezing and pulling rollers 203; S4, clamping and resetting of bubble squeezing traction rollers: after the tube film terminal 207 passes through a pair of bubble squeezing traction rollers 203, the control system drives the pair of bubble squeezing traction rollers 203 to close and reset, thereby forming a film bubble 202 required for the film extrusion molding process in a section of the tube film 201 between the initial position of the tube film terminal sending station 204 and the pair of bubble squeezing traction rollers 203; the size of the film bubble 202 is obtained by the control system controlling the inflation amount during the inflation process according to the detection data of the film bubble rupture detection sensor 209.

[0088] Preferably, after the squeezing and pulling rollers are clamped and reset in step S4, the control system also quickly removes the air in a section of the tube film 201 between the pair of squeezing and pulling rollers and the pair of inflatable clamps 214 through a vacuum device configured at the tube film terminal receiving station 210, so as to facilitate further subsequent treatment operations. For example, the tube film terminal 207 is connected to a winding device, etc.

[0089] Preferably, the film bubble rupture rapid disposal device in this embodiment can also be applied to the bubble making operation during the initial operation of the extrusion film forming equipment. The specific method is to set the tube film terminal sending station 204 at the position of the cooling air ring 236, and the setting position of the tube film terminal receiving station 210 remains unchanged; after the tube film 201 of the extrusion film forming equipment comes out of the cooling air ring 236, immediately start the film bubble rupture rapid disposal device, so that the pair of sending station clamps 208 located on the tube film terminal sending station 204 immediately move, drive the pair of inflatable clamps 214 on the pair of sending station clamps 208 to close, thereby clamping the tube film terminal 207 coming out of the cooling air ring 236; the subsequent operation steps after the tube film terminal 207 is clamped are the same as the operation steps after the tube film terminal is clamped after the film bubble ruptures.

[0090] Preferably, the linear moving mechanism used by the tube film terminal sending station 210 can adopt a linear guide rail, and the moving plate 212 is installed on a slide seat of the linear guide rail, and the slide seat is connected to a screw transmission mechanism driven by a servo reduction motor.

[0091] Preferably, the linear moving mechanism used by the tube film terminal receiving station 210 can adopt a servo electric push rod, and the receiving station clamp 211 is set at the end of the telescopic rod of the servo electric push rod.

[0092] Preferably, the clamping module 206 used in the tube film terminal sending station 204 adopts a pair of synchronous telescopic cylinders, and the pair of sending station clamps 208 are correspondingly arranged at the ends of the piston rods of a pair of synchronous telescopic cylinders. The synchronous telescopic cylinders are fixed on the movable plate 212 and are arranged on both sides of the film bubble. The movable plate 212 is provided with an inner hole for the film bubble 202 to pass through.

[0093] Preferably, the synchronous telescopic cylinder adopts a multi-axis cylinder.

[0094] In this embodiment, when the tube film blowing process of the extrusion film forming equipment adopts an upward blowing or downward blowing process, the movable plate 212 is actually a lifting movable plate.

[0095] Preferably, the clamping module 206 used in the tube film terminal receiving station 210 adopts a finger cylinder with its finger direction pointing to a pair of bubble squeezing and pulling rollers 203, and a pair of air claws of the finger cylinder serve as the pair of receiving station clamps 211.

[0096] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for quickly handling film bubble rupture in film extrusion molding equipment, characterized in that: It includes a pair of bubble squeezing traction rollers arranged in front of the film bubble in the direction of forward movement of the film tube for squeezing the film bubble, a film terminal sending station whose initial position is arranged near the rear end of the film bubble for clamping the film tube after the film bubble is broken and sending it to the position of the pair of bubble squeezing traction rollers, the film terminal sending station includes a moving mechanism and a clamping module arranged on the moving mechanism, and a pair of sending station clamps arranged on the clamping module for quickly clamping the film tube terminal after the film bubble is broken; a number of film bubble rupture detection sensors for detecting whether the film bubble is broken are arranged circumferentially around the periphery of the film bubble position.

2. The device for quickly handling film bubble rupture of film extrusion molding equipment according to claim 1, characterized in that: The pair of bubble squeezing traction rollers are opening and closing type bubble squeezing traction rollers that can be loosened and closed, and the tube film is provided with a turning device after being output from between the pair of bubble squeezing traction rollers. A tube film terminal receiving station for receiving the tube film terminals sent from the tube film terminal sending station to the position of the pair of bubble squeezing traction rollers is also provided at the output end position close to and opposite to the pair of bubble squeezing traction rollers, and the tube film terminal receiving station includes a moving mechanism and a clamping module arranged on the moving mechanism, and a pair of receiving station clamps arranged on the clamping module for quickly clamping the rear end of the bubble when the bubble ruptures.

3. A film bubble rupture rapid disposal device for film extrusion molding equipment according to claim 1 or 2, characterized in that: The moving mechanism used by the tube film terminal sending station is a manipulator, and the clamping module is arranged at the cantilever end of the manipulator.

4. A film bubble rupture rapid disposal device for film extrusion molding equipment according to claim 1 or 2, characterized in that: The moving mechanism used by the tube film terminal sending station is a linear moving mechanism, which includes a moving plate that moves along a linear direction, and the clamping module is mounted on the moving plate.

5. The device for quickly handling film bubble rupture of film extrusion molding equipment according to claim 2, characterized in that: An automatic tube film bubbler is detachably provided on the pair of sending station chucks located at the tube film terminal sending station, and the automatic tube film bubbler includes a pair of inflation clamps detachably provided on the pair of sending station chucks for clamping the tube film terminal, a pair of extension blocks provided at the rear outer side of the inflation clamps and extending toward the rear, an air blowing needle provided at the inner side of one of the pair of extension blocks for inflating the inside of the tube film terminal, a pair of film suction cylinders provided at both sides of the rear part of the tube film terminal, and a vacuum suction cup provided at the front end of the piston rod of the film suction cylinder, and a pair of vacuum suction cups of the pair of film suction cylinders are respectively disposed at both sides of the extension block; a detachable connection structure is provided between the inflation clamps and the sending station chuck.

6. The device for quickly handling film bubble rupture of film extrusion molding equipment according to claim 5, characterized in that: The air blowing needle comprises an air blowing tube for connecting with a compressed air source, a conical needle transitionally connected to the end of the air blowing tube, and an air blowing hole arranged on the outer circle of the front end of the air blowing tube or on the conical needle and connected to the inner hole of the air blowing tube; a compressed air inflation passage is arranged inside the inflatable clamping block, and the air blowing tube of the air blowing needle is fixed on the inner side of the extension block and is connected to the compressed air inflation passage on the inflatable clamping block.

7. The device for quickly handling film bubble rupture of film extrusion molding equipment according to claim 6, characterized in that: The detachable connection structure between the inflatable clamp block and the sending station clamp is as follows: a pair of first positioning pins are provided on the side of the inflatable clamp block that abuts against the sending station clamp, and a pair of first positioning holes are correspondingly provided on the side of the sending station clamp that abuts against the inflatable clamp block. The pair of first positioning pins on the inflatable clamp block are correspondingly inserted into the pair of first positioning holes, and the planes between the inflatable clamp block and the sending station clamp are abutted against each other.

8. The device for quickly handling film bubble rupture of film extrusion molding equipment according to claim 7, characterized in that: An automatically inflated sending-end docking air circuit structure is also provided between the sending station chuck and the inflatable clamp block, and the sending-end docking air circuit structure is as follows: a first compressed air receiving hole connected to the compressed air inflation passage is provided on the outer end face of the inflatable clamp block, and an inflation one-way valve is provided in the first compressed air receiving hole; an inflation docking air circuit is provided on the sending station chuck, which is docked and connected to the first compressed air receiving hole of the inflatable clamp block, and the inflation docking air circuit is connected to an external compressed air source through an inflation pipeline.

9. The device for quickly handling film bubble rupture of film extrusion molding equipment according to claim 2, characterized in that: A detachable connection structure is provided between the inflatable clamp block and the receiving station clamp, and the detachable connection structure between the inflatable clamp block and the receiving station clamp is as follows: a pair of second positioning pins are provided on a side of the inflatable clamp block that abuts against the receiving station clamp, and a pair of second positioning holes are correspondingly provided on a side of the receiving station clamp that abuts against the inflatable clamp block, the pair of second positioning pins on the inflatable clamp block are correspondingly inserted into the pair of second positioning holes, and the planes between the inflatable clamp block and the receiving station clamp are abutted against each other.

10. The device for quickly handling film bubble rupture of film extrusion molding equipment according to claim 2, characterized in that: An automatically inflated receiving end docking air circuit structure is also provided between the receiving station chuck and the inflatable clamp block, and the receiving end docking air circuit structure is as follows: a second compressed air receiving hole connected to the compressed air inflation passage is provided on the outer end face of the inflatable clamp block, and an inflation one-way valve is provided in the second compressed air receiving hole; an inflation docking air circuit is provided on the receiving station chuck, which is docked and connected to the second compressed air receiving hole of the inflatable clamp block, and the inflation docking air circuit is connected to an external compressed air source through an inflation pipeline.

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