Balloon continuous forming equipment and forming method

Abstract

The invention discloses continuous balloon forming equipment and a forming method, a balloon is made of a material pipe, and the forming equipment comprises a straightening module, a forming module, a forming module, a forming module and a forming module which are sequentially arranged in the advancing direction of the material pipe, and the straightening module is used for straightening the material pipe and driving the material pipe to move forwards; the material pipe detection module is used for detecting the straightened material pipe and driving the straightened material pipe to move forwards; the pre-stretching module is used for stretching the material pipe and driving the material pipe to move forwards; the balloon forming and collecting module is used for blowing out the balloon on the stretched material tube and cutting the balloon; the device has the beneficial effects that the continuous and automatic production of the balloons is realized, the labor cost and the time cost are greatly saved, and meanwhile, the quality and the yield of the balloons are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment production and assembly, and in particular to a balloon continuous molding device and a molding method. Background Art

[0002] The balloon catheter is one of the main instruments for human interventional treatment. It can not only be used for the dilation and shaping of blood vessels, but also for the precise shaping after stent implantation. At the same time, it can also serve as a delivery platform for the stent. Due to the multiple functions of the balloon catheter, it is in great demand in interventional treatment. As an important component of the balloon catheter, the balloon also has a large market demand.

[0003] At present, balloon molding mainly adopts a step-by-step molding method. First, the balloon tube is pulled out of the material bubble on the tube pre-stretching machine, and then the balloon tube with the material bubble is placed into the balloon molding machine. Only a single balloon can be blown at a time. The whole process needs to be carried out under manual intervention, which is not only inefficient, but also has high labor costs and a low pass rate.

[0004] The patent with publication number "CN105599284A" discloses "a device and method for enabling the balloon molding process to run continuously and automatically". Although the device enables the balloon molding process to be carried out continuously and automatically, improving the efficiency of balloon molding, it ventilates and pressurizes all material tubes during the molding process, which will cause the subsequent material tubes to gradually deform, affecting the quality of balloon molding.

[0005] The patent with the publication number "CN109466045A" discloses a "full-automatic balloon forming machine". Although the device can automate the balloon forming process, it does not have a tube pre-stretching step and can only form small-sized balloons that do not require pre-stretching. It also does not have a balloon tube inspection process, and the balloon qualification rate is low. Summary of the invention

[0006] The object of the present invention is to provide a balloon continuous molding device and a molding method, which realizes the automated production of the balloon and ensures the quality and yield of the balloon.

[0007] To achieve the above object, the present invention adopts the following technical solutions: A balloon continuous molding device, the balloon is made of a material tube, and the molding device includes: A straightening module that straightens the material tube and drives it forward; A pipe detection module that detects the straightened pipe and drives it forward; A pre-stretching module that stretches the material tube and drives it forward; The balloon forming and collecting module blows out balloons from the stretched material tube and cuts them.

[0008] Preferably, the straightening module comprises a first non-closed clamping jaw for clamping the material pipe, and the first non-closed clamping jaw is movably arranged on a first clamping jaw guide rail.

[0009] Preferably, the straightening module further comprises a first material pipe guide rail and a second material pipe guide rail located on both sides of the first clamping jaw guide rail.

[0010] Preferably, the straightening module further comprises a second non-closed clamping jaw for clamping the material pipe, and the second non-closed clamping jaw is movably arranged on the second clamping jaw guide rail. Preferably, the material pipe detection module includes a first camera for photographing the material pipe; The material pipe detection module also includes a third non-closed clamping jaw for clamping the material pipe, and the third non-closed clamping jaw is movably arranged on a third clamping jaw guide rail.

[0011] Preferably, the pre-stretching module comprises a heating chamber for heating the material tube, and a fifth non-closed clamping jaw and a sixth non-closed clamping jaw for stretching the material tube are arranged on both sides of the heating chamber, the fifth non-closed clamping jaw is movably arranged on the fifth clamping jaw guide rail, and the sixth non-closed clamping jaw is movably arranged on the sixth clamping jaw guide rail; The heating bin is also provided with a seventh non-closed clamping jaw for clamping the material tube on both sides, and the seventh non-closed clamping jaw is movably arranged on the seventh clamping jaw guide rail.

[0012] Preferably, the balloon forming and collecting module comprises a first closed jaw and a second closed jaw which can clamp the material tube, the first closed jaw can be movably arranged on a ninth jaw guide rail, and the second closed jaw can be movably arranged on a tenth jaw guide rail.

[0013] Preferably, the balloon forming and collecting module further comprises an eighth material tube guide rail and a ninth material tube guide rail located on both sides of the ninth clamping jaw guide rail and the tenth clamping jaw guide rail.

[0014] Preferably, the balloon forming and collecting module also includes a balloon mold that can clamp the material tube, and the balloon mold includes a left mold and a right mold, and the contact surfaces of the left mold and the right mold are both provided with forming holes that match the shape of the formed balloon.

[0015] Preferably, the balloon forming and collecting module further comprises an air blowing pipe for blowing air into the material pipe and a third closed clamping jaw capable of clamping the material pipe, the air blowing pipe and the third closed clamping jaw being fixedly connected, and both being movably arranged on an air blowing clamping jaw guide rail capable of moving up and down; The balloon forming and collecting module also includes a cutter for cutting the material tube.

[0016] Preferably, the present invention further discloses a balloon continuous molding method, using the aforementioned molding device, the molding method is as follows: S1, straightening, the material tube moves forward along the straightening module, is straightened during the forward movement and enters the material tube inspection module; S2, detection: the material pipe detection module detects the straightened material pipe; If a defect is found, the defective part will be cut off by the cutter after it passes the position of the cutter; If no defects are found, proceed to S3; S3, pre-stretching, the defect-free material tube that has been tested enters the pre-stretching module, and the material tube is pre-stretched; S4, molding preparation, after the material tube enters the balloon molding and collection module, the second closed clamp clamps the material tube and moves forward to the molding station, and then the following actions are performed simultaneously: The balloon mold clamps the material tube so that the part of the material tube to be formed is located in the forming hole; The air blowing pipe and the third closing clamp are moved down to the specified position, and then the third closing clamp clamps the material pipe; The first closed clamping jaw clamps the material tube; S5, forming, the blowing pipe introduces high-pressure gas into the material pipe, and the balloon mold is heated at the same time. After the temperature reaches the set level, the third closed clamp and the first closed clamp stretch the material pipe to both sides respectively; S6, reset, the air blowing pipe stops ventilation, and the balloon mold cools down at the same time. After the cooling is completed, the balloon mold is separated, the third closed clamp releases the material tube and resets, the first closed clamp releases the material tube and resets, and the material tube continues to move forward to the cutting position; S7, cutting, the cutter moves down to cut off the balloon on the material tube, and then the cutter is reset.

[0017] The beneficial effects of the present invention are: 1. It realizes the continuous and automated production of balloons, greatly saving labor costs and time costs, while ensuring the quality and yield of balloons.

[0018] 2. The straightening module is equipped with a material pipe guide rail, through which the material pipe is naturally straightened when passing through, which improves production efficiency and ensures the straightening effect.

[0019] 3. Before the balloon is formed, the raw material tube is inspected to avoid defective tubes that lead to poor product quality, effectively improving the qualified rate of balloon products.

[0020] 4. The jaws that drive the material tube to move are all non-closed jaws. Closed jaws are used in the balloon forming process to prevent high-pressure gas from entering the entire tube and causing deformation of the tube.

[0021] 5. Pre-stretching is performed before the balloon is formed. The length of the tube section that will eventually be formed into the balloon is controlled by pre-stretching. The longer the tube section that will be formed into the balloon, the thicker the balloon will eventually be formed, and vice versa. Different lengths of the tube section (formed into the balloon) can be set in the pre-stretching process according to different balloon thickness requirements.

[0022] 6. Through the setting of the pre-stretching module, the device can form large balloons with a diameter of more than 5.0 mm; when the diameter of the balloon to be formed is small, the pre-stretching module can be shut down without affecting the normal forming of the balloon. This improves the adaptability of the equipment and makes it more suitable for various processing scenarios.

[0023] 7. The balloon is automatically formed through the air blowing tube, and then the formed balloon can be cut off by the cutter. The formed balloon is collected along the guide plate, making the workbench neat and tidy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the material pipe after straightening in the present invention; Figure 2 It is a schematic diagram of the structure of the material pipe after pre-stretching in the present invention; Figure 3 It is a schematic diagram of the structure of the balloon in the present invention; Figure 4 It is a structural schematic diagram of the present invention; Figure 5 It is a structural schematic diagram of the straightening module in the present invention; Figure 6 It is a structural schematic diagram of the material pipe detection module in the present invention; Figure 7 It is a structural schematic diagram of the pre-stretching module in the present invention; Figure 8 It is a structural schematic diagram of the balloon forming and collecting module in the present invention; Fig. 9 It is a structural schematic diagram of a balloon mold in the balloon forming and collecting module of the present invention; Fig.10 It is a schematic diagram of the structure of the air blowing tube and the third closing clamp in the balloon forming and collecting module of the present invention; Fig.11 It is a schematic diagram of the forming of the material tube in the balloon mold in the present invention.

[0025] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings. Example

[0027] like Figure 1 As shown, the balloon 52 is made of a material tube 50, which is a hollow tube. For the convenience of storage and transportation, the material tube 50 is generally stored in the form of a coil. When forming the balloon 52, it needs to be straightened first.

[0028] The non-closed jaws in this embodiment have two working states: State 1 is the reset state, in which the non-closed jaws are open and are used to reset the material tube 50 after the material tube 50 is transported, ready for the next transport; State 2 is the transport state, in which the non-closed jaws clamp the material tube 50 (only clamp the outer surface of the material tube 50, not make the inner wall of the material tube 50 fit) and drive it forward.

[0029] The closed jaws in this embodiment have three working states: the reset state of state one and the transport state of state two are consistent with the non-closed jaws, and state three is the closed state. At this time, the closed jaws clamp the material tube 50 (the inner wall of the material tube 50 needs to be in contact), and the gas cannot pass through the inside of the material tube 50.

[0030] The non-closed clamping jaws and the closed clamping jaws are existing conventional products, and their specific structures and usage conditions are not described in detail in this embodiment.

[0031] like Figure 4 As shown, a balloon continuous molding device includes: A straightening module 10 for straightening the material tube 50 and driving it forward; A pipe detection module 20 that detects the straightened pipe 50 and drives it to move forward; A pre-stretching module 30 that stretches the material tube 50 and drives it forward; The balloon forming and collecting module 40 blows out the balloon 52 from the stretched material tube 50 and cuts the balloon 52 .

[0032] like Figure 5 As shown, the straightening module 10 includes a straightening base 1011 and a first non-closed clamping jaw 1041 for clamping the material tube 50, and the first non-closed clamping jaw 1041 is movably arranged on the first clamping jaw guide rail 1031. The straightening module 10 also includes a first material tube guide rail 1021 and a second material tube guide rail 1022 located on both sides of the first clamping jaw guide rail 1031.

[0033] The first clamping jaw guide 1031, the first material pipe guide 1021 and the second material pipe guide 1022 are all mounted on the straightening base 1011. When the first non-closed clamping jaw 1041 clamps the material pipe 50 and moves forward, the material pipe 50 passes through the first material pipe guide 1021 and the second material pipe guide 1022 to be straightened.

[0034] A guide rail (not shown in the figure) for the first non-closed jaw 1041 to reciprocate can be provided on the first jaw guide rail 1031 to ensure a smooth walking process. The driving device can be a circulating track located above the straightening base 1011, and a walking device connected to the first non-closed jaw 1041 is suspended on the track to drive the first non-closed jaw 1041 (in state one) forward or backward (in state two at this time); the driving device can also be a motor that drives the first non-closed jaw 1041 to move alone. The circulating track or the motor are both existing conventional technologies and will not be described in detail in this embodiment.

[0035] In order to improve the conveying efficiency of the material pipe 50, the present embodiment can also set a second clamping jaw guide rail 1032 on the straightening base 1011, and a second non-closed clamping jaw 1042 can be movably set on the second clamping jaw guide rail 1032. The second non-closed clamping jaw 1042 can transport the material pipe 50 alternately with the first non-closed clamping jaw 1041. When one is in state two and moves forward, the other is in state one and moves backward. When the non-closed clamping jaw is in state one, the internal space of the open clamping jaw is not less than the outer edge size of the clamping jaw when it is in state two, so that the two can move forward alternately.

[0036] like Figure 6 As shown, the material tube detection module 20 includes a detection base 2011 and a first camera 2041 for photographing the material tube 50 .

[0037] In some embodiments, in order to ensure the detection effect, a second camera 2042 is further provided, and the first camera 2041 and the second camera 2042 are arranged in sequence along the moving direction of the material tube 50 .

[0038] The material pipe detection module 20 also includes a third non-closed clamp 2061 for clamping the material pipe 50. The third non-closed clamp 2061 is movably arranged on the third clamp guide rail 2052. The fourth material pipe guide rail 2021 and the fifth material pipe guide rail 2023 are arranged on both sides of the third clamp guide rail 2052. The third material pipe guide rail 2022 is arranged between the fourth material pipe guide rail 2021 and the fifth material pipe guide rail 2023.

[0039] When the third non-closed clamp 2061 drives the material tube 50 to move forward, the material tube passes through the fourth material tube guide rail 2021, the fifth material tube guide rail 2023, and the third material tube guide rail 2022 to keep it in a straight state; the first camera 2041 and the second camera 2042 are used to shoot and analyze the material tube 50. If it is found that the material tube is not straightened or has defects, it needs to be removed in time. Defects mainly refer to crystal points, material points or damage, scratches, etc. on the surface of the material tube. Through the camera shooting and automatic screening, timely detection can avoid the formation of balloons in this place, which affects product quality.

[0040] The first camera 2041 and the second camera 2042 are mounted on the first bracket 2031 and the second bracket 2032 respectively.

[0041] In order to drive the material tube 50 to move more stably, the material tube detection module 20 of this embodiment further includes a fourth clamping jaw guide rail 2051, on which a fourth non-closed clamping jaw 2062 and a ninth non-closed clamping jaw 2063 are respectively provided; and a tenth non-closed clamping jaw 2064 is also provided on the third clamping jaw guide rail 2052. The fourth non-closed clamping jaw 2062 and the ninth non-closed clamping jaw 2063, the third non-closed clamping jaw 2061 and the tenth non-closed clamping jaw 2064 are grouped in pairs and act alternately, respectively driving the material tube 50 to move forward, so that the movement process of the material tube 50 is more stable.

[0042] like Figure 7 As shown, the pre-stretching module 30 includes a pre-stretching base 3011 and a heating chamber 3041 for heating the material tube 50. A fifth non-closed clamping jaw 3052 and a sixth non-closed clamping jaw 3053 for stretching the material tube 50 are arranged on both sides of the heating chamber 3041. The fifth non-closed clamping jaw 3052 is movably arranged on the fifth clamping jaw guide rail 3032, and the sixth non-closed clamping jaw 3053 is movably arranged on the sixth clamping jaw guide rail 3033. Seventh non-closed clamping jaws 3051 for clamping the material tube 50 are also provided on both sides of the heating chamber 3041 , and the seventh non-closed clamping jaws 3051 are movably arranged on the seventh clamping jaw guide rail 3031 .

[0043] In certain embodiments, in order to make the transportation of the material tube 50 more stable, an eighth non-closed clamping jaw 3054 is further provided. The eighth non-closed clamping jaw 3054 is movably provided on the eighth clamping jaw guide rail 3034 .

[0044] The pre-stretching module 30 further includes a sixth material tube guide rail 3021 and a seventh material tube guide rail 3022 located on both sides of the seventh clamping jaw guide rail 3031 and the eighth clamping jaw guide rail 3034 .

[0045] like Figure 2 As shown, it is a pre-stretched material tube 50, wherein the reference numeral 50 represents an unstretched material tube, and the reference numeral 51 represents a stretched material tube, whose outer dimensions are slightly smaller than the unstretched material tube.

[0046] After the material tube 50 without defects detected by the material tube inspection module 20 is transported, the seventh non-closed clamp 3051 drives the material tube 50 to move forward until the front end of the material tube 50 is clamped by the eighth non-closed clamp 3054. At this time, the pre-stretched material tube 50 is located in the heating chamber 3041 and the material tube 50 no longer moves. After the heating chamber 3041 is heated for a period of time (generally, the temperature needs to be raised to 90°C-120°C), the fifth non-closed clamp 3052 drives the material tube to move backward, and the sixth non-closed clamp 3053 drives the material tube to move forward (according to the stretching and forming requirements, the moving distance is set in advance, and the material tube stops after moving the specified distance to complete the pre-stretching), so that the material tube section 51 located in the heating chamber 3041 is stretched and thinned. After that, the heating chamber 3041 cools down and prepares for the next stretching.

[0047] In some embodiments, the pre-stretching module 30 may not be used. For example, when forming a small-sized balloon (the size here is generally divided according to the diameter of the balloon after molding, and a balloon below 5.0 mm is a small-sized balloon, and the material tube may not be stretched), the balloon material tube used can pass through the groove 40513 opened on the left mold 4051 and the right mold 4061 without being stretched, and the pre-stretching process may not be performed at this time.

[0048] like Figure 8 As shown, the balloon forming and collecting module 40 includes a forming base 4011 and a first closed jaw 4031 and a second closed jaw 4032 that can clamp the material tube 50. The first closed jaw 4031 can be movably arranged on the ninth jaw guide rail 4041, and the second closed jaw 4032 can be movably arranged on the tenth jaw guide rail 4042.

[0049] The balloon forming and collecting module 40 further includes an eighth material tube guide rail 4021 and a ninth material tube guide rail 4022 located on both sides of the ninth clamping jaw guide rail 4041 and the tenth clamping jaw guide rail 4042 .

[0050] One of the first closed clamp 4031 and the second closed clamp 4032 is used to drive the material tube 50 forward, and the other is used to clamp the material tube during balloon molding to prevent air leakage from causing the balloon to fail to be molded. Therefore, in some embodiments, one of the two can also be set as a non-closed clamp.

[0051] like Fig. 9As shown, the balloon forming and collecting module 40 also includes a balloon mold that can clamp the material tube 50. The balloon mold includes a left mold 4051 and a right mold 4061. The contact surfaces of the left mold 4051 and the right mold 4061 are provided with forming holes 40512 that match the shape of the formed balloon 52. The left mold 4051 is connected to a left push plate 40511 that drives it to move, and the right mold 4061 is connected to a right push plate 40611 that drives it to move. A guide rail (not shown in the figure) for the left mold 4051 and the right mold 4061 to move can be provided on the forming base 4011. The left push plate 40511 and the right push plate 40611 can push the left and right molds to move toward the middle (forming the balloon) or to separate to both sides (the material tube moves forward or the formed balloon is removed). The specific structure and principle of the left push plate 40511 and the right push plate 40611 are existing conventional technologies and will not be described in detail in this embodiment. Grooves (ie, labeled 40513 ) for accommodating the stretched material tube section 51 are also provided on both sides of the forming hole 40512 .

[0052] During the specific molding process, the size and shape of the molding hole 40512 may be changed accordingly according to the size and shape of the molded balloon. The left mold 4051 and the right mold 4061 are equipped with a heating device, which needs to be heated when molding the balloon; the left mold 4051 and the right mold 4061 are also equipped with a cooling device, which is used to quickly cool the balloon after molding, so that the left and right molds can be opened to remove the balloon and mold the next balloon.

[0053] The heating device used in the heating chamber 3041 and the left mold 4051 and the right mold 4061 is a heating rod, which can heat up the heating chamber 3041 and the left mold 4051 and the right mold 4061 after power is turned on. The cooling device is a cooling water circuit, which is connected to a chiller (the heating device and the cooling device are both existing conventional technologies and will not be described in detail in this embodiment).

[0054] like Fig.10 As shown, the balloon forming and collecting module 40 also includes a blowing pipe 4101 for blowing air into the material pipe 50 and a third closed clamp 41011 that can clamp the material pipe 50. The blowing pipe 4101 and the third closed clamp 41011 are fixedly connected, and the two are movably arranged on a blowing clamp guide rail 4091 that can move up and down; the blowing clamp guide rail 4091 can be provided with a guide rail (not shown in the figure) for the blowing pipe 4101 and the third closed clamp 41011 to move, and the two can be connected to a driving device that drives them to move forward and backward (existing conventional technology, which will not be described in detail in this embodiment). The blowing clamp guide rail 4091 is arranged on a blowing clamp lifting plate 4081 that can move up and down.

[0055] After the material tube moves to this station, the blowing jaw lifting plate 4081 moves downward to drive the blowing jaw guide rail 4091, the blowing pipe 4101, and the third closed jaw 41011 to move downward synchronously. After moving downward to a specified height (corresponding to the material tube), the blowing pipe 4101 and the third closed jaw 41011 move backward on the blowing jaw guide rail 4091, so that the blowing pipe 4101 enters the material tube. Then the third closed jaw 41011 clamps the material tube (together with the outlet tip of the blowing pipe 4101), and the blowing pipe 4101 blows air into the material tube to form the balloon. The schematic diagram of this process is shown in Fig.11 shown.

[0056] A pad 4111 (located on the molding base 4011) for cutting the balloon is also provided below the blowing jaw guide rail 4091. After the molded balloon moves to this position, the cutter 4071 moves downward to cut off the material tube, and the cut balloon can enter the collection frame along the guide plate 4121 on the side wall of the molding base 4011. The molding base 4011 is provided with an inclined surface (not shown in the figure) for the cut balloon to move to the guide plate 4121.

[0057] In addition, this embodiment also discloses a balloon continuous molding method, using the aforementioned molding equipment, the molding method is as follows: S1, straightening, the material pipe 50 moves forward along the straightening module 10, is straightened during the forward movement and enters the material pipe detection module 20; S2, detection, the material pipe detection module 20 detects the straightened material pipe 50; If a defect is found, the subsequent pre-stretching module 30 and the balloon forming and collecting module 40 will not act (or only the seventh non-closed jaw 3051, the eighth non-closed jaw 3054, and the second closed jaw 4032 will act to drive the material tube forward, and the other modules will not act), and the defective part will be cut off by the cutter 4071 after it passes the position of the cutter 4071; If no defects are found, proceed to S3; S3, pre-stretching, the defect-free material tube 50 that has been tested enters the pre-stretching module 30, and the material tube 50 is pre-stretched; S4, molding preparation, after the material tube 50 enters the balloon molding and collecting module 40, the second closed clamp 4032 clamps the material tube 50 and moves forward to the molding station, and then the following actions are performed synchronously: The balloon mold clamps the material tube 50 so that the portion of the material tube 50 to be formed is located in the forming hole 40512; The air blowing tube 4101 and the third closing clamp 41011 move downward to a specified position, and then the third closing clamp 41011 clamps the material tube 50; The first closed clamping jaw 4031 clamps the material tube 50; S5, molding, the blowing pipe 4101 passes high-pressure gas into the material tube 50, and the balloon mold is heated at the same time. After the temperature is raised to a set level (generally 90°C-120°C), the third closed clamp 41011 and the first closed clamp 4031 stretch the material tube 50 to both sides respectively; S6, reset, the air blowing tube 4101 stops ventilating, and the balloon mold cools down. After the cooling is completed, the balloon mold is separated, the third closed clamp 41011 releases the material tube 50 and resets, the first closed clamp 4031 releases the material tube 50 and resets, and the material tube 50 continues to move forward to the cutting position; S7, cutting, the cutter 4071 moves downward to cut off the balloon 52 on the material tube 50, and then the cutter 4071 is reset.

[0058] In this embodiment, all the non-closed jaws and the first closed jaw 4031 and the second closed jaw 4032 are coaxial, and during the balloon forming process, the third closed jaw 41011 is also coaxial therewith, so that the material tube is straighter and the product quality is effectively guaranteed. This solution integrates the processes of material tube straightening, material tube testing, pre-stretching, balloon forming, etc., realizes the fully automatic production and processing of the balloon, and at the same time guarantees the quality and yield rate of the balloon.

[0059] The above embodiments do not impose any formal limitations on the shape, material, structure, etc. of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

[0060] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection content of the present invention.

[0061] If the words "first", "second", etc. are used in this document to limit components, those skilled in the art should know that the use of "first" and "second" is only to facilitate the description of the present invention and simplify the description. Unless otherwise stated, the above words have no special meaning.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A balloon continuous molding device, wherein the balloon (52) is made from a material tube (50), characterized in that: The molding device comprises the following components which are arranged in sequence along the advancing direction of the material pipe (50): A straightening module (10) for straightening the material tube (50) and driving it to move forward; A material pipe detection module (20) for detecting the straightened material pipe (50) and driving it to move forward; A pre-stretching module (30) for stretching the material tube (50) and driving it forward; A balloon forming and collecting module (40) is provided for blowing out balloons (52) from a stretched material tube (50) and then cutting the balloons.

2. The balloon continuous molding device according to claim 1, characterized in that: The straightening module (10) comprises a first non-closed clamping jaw (1041) for clamping the material pipe (50), and the first non-closed clamping jaw (1041) is movably arranged on a first clamping jaw guide rail (1031).

3. The balloon continuous molding device according to claim 2, characterized in that: The straightening module (10) further comprises a first material pipe guide rail (1021) and a second material pipe guide rail (1022) located on both sides of the first clamping jaw guide rail (1031).

4. The balloon continuous molding device according to claim 2, characterized in that: The straightening module (10) further comprises a second non-closed clamping jaw (1042) for clamping the material pipe (50), and the second non-closed clamping jaw (1042) is movably arranged on the second clamping jaw guide rail (1032).

5. The balloon continuous molding device according to claim 1, characterized in that: The material pipe detection module (20) comprises a first camera (2041) for photographing the material pipe (50); The material pipe detection module (20) further comprises a third non-closed clamping jaw (2061) for clamping the material pipe (50), and the third non-closed clamping jaw (2061) is movably arranged on a third clamping jaw guide rail (2052).

6. The balloon continuous molding device according to claim 1, characterized in that: The pre-stretching module (30) comprises a heating chamber (3041) for heating the material tube (50), and a fifth non-closed clamping jaw (3052) and a sixth non-closed clamping jaw (3053) for stretching the material tube (50) are arranged on both sides of the heating chamber (3041), the fifth non-closed clamping jaw (3052) being movably arranged on a fifth clamping jaw guide rail (3032), and the sixth non-closed clamping jaw (3053) being movably arranged on a sixth clamping jaw guide rail (3033); The heating chamber (3041) is also provided with a seventh non-closed clamping jaw (3051) for clamping the material tube (50) on both sides, and the seventh non-closed clamping jaw (3051) is movably arranged on the seventh clamping jaw guide rail (3031).

7. The balloon continuous molding device according to claim 1, characterized in that: The balloon forming and collecting module (40) comprises a first closed jaw (4031) and a second closed jaw (4032) capable of clamping the material tube (50), wherein the first closed jaw (4031) is movably disposed on a ninth jaw guide rail (4041), and the second closed jaw (4032) is movably disposed on a tenth jaw guide rail (4042).

8. The balloon continuous molding device according to claim 7, characterized in that: The balloon forming and collecting module (40) further comprises an eighth material tube guide rail (4021) and a ninth material tube guide rail (4022) located on both sides of the ninth clamping jaw guide rail (4041) and the tenth clamping jaw guide rail (4042).

9. The balloon continuous molding device according to claim 8, characterized in that: The balloon forming and collecting module (40) further comprises a balloon mold capable of clamping the material tube (50), the balloon mold comprising a left mold (4051) and a right mold (4061), and the contact surfaces of the left mold (4051) and the right mold (4061) are provided with forming holes (40512) matching the shape of the formed balloon (52).

10. The balloon continuous molding device according to claim 9, characterized in that: The balloon forming and collecting module (40) further comprises an air blowing pipe (4101) for blowing air into the material pipe (50) and a third closed clamp (41011) capable of clamping the material pipe (50), wherein the air blowing pipe (4101) and the third closed clamp (41011) are fixedly connected and are movably arranged on an air blowing clamp guide rail (4091) capable of moving up and down; The balloon forming and collecting module (40) further comprises a cutter (4071) for cutting the material tube (50).

11. A method for continuous balloon molding, characterized in that: Using the molding device according to claim 10, the molding method is as follows: S1, straightening, the material pipe (50) moves forward along the straightening module (10), is straightened during the forward movement and enters the material pipe detection module (20); S2, testing, the material pipe testing module (20) tests the straightened material pipe (50); If a defect is found, the defective part is cut off by the cutter (4071) after it passes the position of the cutter (4071); If no defects are found, proceed to S3; S3, pre-stretching, the defect-free material tube (50) that has been inspected enters the pre-stretching module (30), and the material tube (50) is pre-stretched; S4, molding preparation, after the material tube (50) enters the balloon molding and collection module (40), the second closed clamp (4032) clamps the material tube (50) and moves forward to the molding station, and then the following actions are performed simultaneously: The balloon mold clamps the material tube (50) so that the portion of the material tube (50) to be formed is located in the forming hole (40512); The air blowing tube (4101) and the third closed clamping jaw (41011) move downward to a specified position, and then the third closed clamping jaw (41011) clamps the material tube (50); The first closed clamping jaw (4031) clamps the material tube (50); S5, molding, the blowing pipe (4101) introduces high-pressure gas into the material tube (50), and at the same time the balloon mold is heated. After the temperature is raised to a set level, the third closed clamp (41011) and the first closed clamp (4031) respectively stretch the material tube (50) to both sides; S6, reset, the air blowing pipe (4101) stops ventilating, and the balloon mold cools down at the same time. After the cooling is completed, the balloon mold is separated, the third closed clamp (41011) releases the material tube (50) and resets, the first closed clamp (4031) releases the material tube (50) and resets, and the material tube (50) continues to move forward to the cutting position; S7, cutting, the cutting knife (4071) moves downward to cut off the balloon (52) on the material tube (50), and then the cutting knife (4071) is reset.

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