A non-destructive separation device and method for metal growth in a cylinder

Abstract

The present invention discloses a non-destructive separation device and separation method for metal growth in a cylinder, comprising a demoulding tooling body, a suction cup mechanism, and a vacuum device. The demoulding tooling body comprises an annular bracket, a fixed rod, a base, and a support plate. The annular bracket is provided with four evenly distributed fixed rods in the circumference, the lower ends of the four fixed rods are fixedly connected to the base, the middle of the fixed rods are threadedly connected to the threaded rods, one end of the threaded rods is fixedly connected to the rotating handle, and the other end is movably connected to the support plate, and there are guide rods that are movably penetrated through the fixed rods above and below one side of the support plate, respectively. The suction cup mechanism is located in the middle of the upper surface of the base, and an annular space is formed between the suction cup mechanism and the four support plates. The mother mold is located in the annular space, and the inner surface of the mother mold is provided with a workpiece with good metal growth. The outer surface of the suction cup mechanism is provided with an adsorption rubber ring of the vacuum device, which is used to adsorb the inner surface of the workpiece to separate it from the inner surface of the mother mold. The present invention can non-destructively peel off the sub-film from the inside of the cylinder without damaging the mother mold, thereby increasing the service life of the mother mold and shortening the demoulding time.

Description

Technical Field

[0001] The invention belongs to the technical field of metal growth of micro-prismatic reflective materials, and in particular relates to a non-destructive separation device and a separation method for metal growth in a cylinder. Background Art

[0002] Micro-prismatic reflective materials are widely used in the fields of traffic safety, vehicle safety, personal safety, etc. The molding process of micro-prismatic reflective materials is to use a molding machine to replicate the reflective structure on the surface of the cylindrical mold. Under high temperature and high pressure, the service life of the mold is short. In particular, the service life of the cylindrical mold with a welding seam will be shorter, so only the seamless metal growth technology can be used to extend the service life of the mold. The difficulty of seamless metal growth lies in the stripping of the sub-film. The commonly used stripping method is the opening of the mother mold. For example, CN102632551A discloses a vertical molding glass fiber reinforced plastic composite pipe demoulding structure, whose outer mold is a single opening type, equipped with an adjustable jacking device, including a jacking screw and a positioning plate for positioning the jacking screw; the jacking screw used for lifting and flipping is pushed between the outer mold and the glass fiber reinforced plastic pipe. After the product reaches the design strength, the demoulding structure uses the outer mold and the jacking screw embedded in the product to directly lift and flip; then the jacking screw is withdrawn, and the opening and closing device of the single opening door panel is used to change the mold diameter, thereby performing demoulding. Although this method can facilitate demoulding, it has high requirements on the joints of the movable openings, which can easily lead to inaccurate splicing and cause the sub-mold and mother mold (outer mold) to be scrapped. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a device and method for non-destructive separation of metal growth in a cylinder, which has the advantages of being able to non-destructively peel off the sub-film from the inside of the cylinder without damaging the master mold, solving the existing problem of peeling off metal growth in the cylinder, increasing the service life of the master mold, and shortening the demolding time.

[0004] In order to achieve the above object, the present invention adopts the following technical scheme:

[0005] A non-destructive separation device for metal growth in a cylinder, comprising a demoulding tool body, the demoulding tool body comprising an annular bracket, a suction cup mechanism, and a vacuum device, the demoulding tool body further comprising a vertical fixed rod, a base, and a vertical support plate, the annular bracket being circumferentially fixedly connected with four evenly distributed fixed rods, the lower ends of the four fixed rods being fixedly connected with the base, and the four fixed rods, the annular bracket, and the base forming a cylindrical frame;

[0006] A threaded rod is threadedly connected to the middle of the fixed rod, one end of the threaded rod is fixedly connected to a rotating handle, the other end of the threaded rod is movably connected to a movable support plate located in a cylindrical frame, and a guide rod is fixedly connected above and below one side surface of the support plate, respectively, and the guide rod movably passes through the fixed rod;

[0007] A suction cup mechanism is provided in the middle of the upper surface of the base, an annular space is formed between the suction cup mechanism and the four support plates, a cylindrical mother mold is located in the annular space, four support plates are supported on the outer surface of the mother mold, and a workpiece with metal growth is provided on the inner surface of the mother mold;

[0008] The vacuum device comprises four adsorption rubber rings, which are arranged on the outer surface of the suction cup mechanism and respectively face four support plates. The vacuum device adsorbs the inner surface of the workpiece through the adsorption rubber rings to separate it from the inner surface of the mother mold.

[0009] The above scheme is adopted: the cylindrical mother mold is placed in the annular space formed between the suction cup mechanism and the four support plates, and the four support plates are supported on the outer surface of the mother mold. The inner surface of the workpiece can be adsorbed in turn by operating the various adsorption rubber rings of the vacuum device to separate it from the inner surface of the mother mold, and avoid adsorbing the inner surface of the workpiece at the same time to separate it from the mother mold. Because the one-time adsorption of the workpiece (sub-membrane) to separate it from the mother mold will cause the friction between the workpiece (sub-membrane) and the mother mold, resulting in the scrapping of both or one of them, so they are sucked out one by one. After the sub-membrane that is separated from the mother mold due to adsorption is deformed, the turning point of the deformed sub-membrane (or the adjacent part of the two parts of the deformed sub-membrane) tends to expand outward. This position is too close to the mother mold and there is a risk of scratching. Therefore, each time a part is sucked out, the handle needs to be rotated to push the support plate to make the deformation state of the mother mold close to the sub-membrane, so as to ensure that there is enough space between the sub-membrane and the mother mold to prevent the two from scratching, and secondly, it can buffer the elastic deformation of the sub-membrane to prevent damage to the sub-membrane.

[0010] Preferably, the suction cup mechanism includes a rectangular fixed bracket, four vertical hollow square tubes parallel to the four side surfaces of the fixed bracket, cylinder groups are respectively installed on the upper and lower parts of the fixed bracket, the cylinder group includes four cylinders arranged in sequence from top to bottom, and adjacent cylinders are perpendicular to each other, the upper and lower parts of the hollow square tube are respectively fixedly connected to the output shaft of a cylinder in the corresponding cylinder group, and the adsorption rubber ring is fixed to the outer surface of the hollow square tube.

[0011] The above scheme is adopted: the hollow square tube is driven to move by each cylinder, and the vacuum device can be operated to sequentially adsorb the inner surface of the workpiece to separate it from the inner surface of the mother mold, which is convenient for demoulding without damaging the mother mold, thus playing a protective role.

[0012] Here, in addition to the air cylinder, hydraulic cylinders and electric cylinders can also be used for driving. The main reason is that a certain pressure is required during pushing so that the adsorption rubber ring is tightly attached to the surface of the sub-membrane. When the vacuum pump is started to generate suction, the air cylinder or hydraulic cylinder, electric cylinder, contracts to separate the sub-membrane and the mother mold, thereby achieving the purpose of demolding.

[0013] Preferably, the vacuum pumping device further comprises a vacuum pump, an exhaust hole located in the adsorption rubber ring and communicating with the interior of the hollow square tube, and the top of the hollow square tube is connected to the suction end of the vacuum pump through a pipeline.

[0014] The above scheme is adopted: by pressing the adsorption rubber ring against the inner surface of the workpiece, it can not only prevent damage to the inner wall of the cylinder, but also exhaust through the exhaust hole to generate suction, form a vacuum environment inside the adsorption rubber ring, and absorb the workpiece (i.e., the sub-membrane).

[0015] Preferably, the four hollow square tubes are opposite to the four support plates respectively, and the adsorption rubber ring is opposite to the corresponding support plate.

[0016] The above scheme is adopted: the mother mold with the workpiece is supported between the adsorption rubber ring and the support plate on the hollow square tube, so that the adsorption rubber ring has a supporting effect when adsorbing the inner surface of the workpiece, and when each adsorption rubber ring adsorbs the corresponding part of the inner surface of the workpiece, the support plate at the corresponding position is pushed by rotating the handle so that the deformation state of the mother mold is close to the sub-membrane, so as to buffer the elastic deformation of the sub-membrane and prevent damage to the sub-membrane.

[0017] Preferably, a lifting ring is fixedly connected to the upper surface of the fixing bracket.

[0018] By adopting the above solution, the entire suction cup mechanism can be lifted by the lifting ring to achieve the effect of rapid lifting.

[0019] Preferably, four vertical limiting columns arranged in a matrix are fixedly connected to the middle of the upper surface of the base, and hollow cylinders are respectively provided at the four corners of the fixed bracket, and the hollow cylinders are cooperatively mounted on the limiting columns.

[0020] The above scheme is adopted: four hollow cylinders are arranged on the lower surface of the fixed bracket, and limiting columns are installed in the hollow cylinders. The limiting columns play a role in lifting, fixing and guiding the suction cup mechanism, which facilitates the installation of the suction cup mechanism.

[0021] Preferably, a pulley 2 which can roll on a base is installed at the lower end of the hollow square tube.

[0022] Preferably, a pulley 1 which can roll on the base is installed at the lower end of the support plate.

[0023] The above solution can not only meet the movement of the hollow square tube and the support plate on the base, but also support the hollow square tube and the support plate, thereby ensuring the stability and smoothness of the separation of the sub-mold and the mother mold.

[0024] Preferably, the length of the cylinder is greater than the radius of the female mold and less than 2 / 3 of the diameter of the female mold.

[0025] The above solution ensures that the piston of the cylinder has space to move, and avoids the piston extending too long to waste time or generate unstable factors that affect the quality of separation between the sub-film and the mother mold.

[0026] Preferably, the hardness of the adsorption rubber ring is less than 20 HA and the width is in the range of 10-30 mm.

[0027] Adopt the above solution: if the hardness of the adsorption rubber ring is too high, it will not fit tightly with the inner surface of the workpiece, and it is easy to leak. If the width is too narrow or too wide, it will not fit tightly and cause leakage).

[0028] A method for non-destructive separation of metal growth in a cylinder, comprising the following steps:

[0029] a. Place a cylindrical master mold with a metal-grown workpiece on its inner surface in an annular space formed between the suction cup mechanism and four support plates;

[0030] b. The threaded rod is rotated by rotating the rotating handles. The threaded rod drives the support plate to move under the action of the thread force to support the outer surface of the master mold. The master mold can be lightly pressed into a square structure through the support plate;

[0031] c. Drive each hollow square tube to move through each cylinder, so that each adsorption rubber ring is against the inner surface of the workpiece, and form a vacuum environment in the adsorption rubber ring by operating the vacuum pump of the vacuum device, so that the adsorption rubber ring is adsorbed on the inner surface of the workpiece;

[0032] d. Operate the cylinder to move the hollow square tube on one side toward the center of the suction cup mechanism, so that the workpiece adsorbed by the adsorption rubber ring on the hollow square tube on this side is separated from the inner surface of the mother mold, and at the same time push the support plate opposite to the hollow square tube on this side, so that the deformation state of the mother mold on this side is close to the workpiece, ensuring the space between the workpiece and the mother mold; and so on, the workpiece is separated from the inner surface of the mother mold in turn through the adsorption rubber rings on each hollow square tube;

[0033] e. When the workpiece is completely separated from the master mold, lift the entire suction cup mechanism through the lifting ring, and then exhaust the vacuum pump to remove the workpiece;

[0034] f. Finally, move the support plates away from the mother mold and restore the mother mold to its original state.

[0035] The above scheme is adopted: by operating each adsorption rubber ring of the vacuum device to sequentially adsorb the inner surface of the workpiece to separate it from the inner surface of the mother mold, avoiding adsorbing the inner surface of the workpiece to separate it from the mother mold at the same time, because the one-time adsorption of the workpiece (sub-film) to separate it from the mother mold will cause the friction between the workpiece (sub-film) and the mother mold, resulting in the scrapping of both or one of them, so they are sucked out one by one. After the sub-film separated from the mother mold by adsorption is deformed, the turning point of the deformed sub-film (or the adjacent part of the two parts of the deformed sub-film) has a tendency to expand outward. This position is too close to the mother mold and there is a risk of scratching. Therefore, each time a part is sucked out, the handle needs to be rotated to push the support plate to make the deformation state of the mother mold close to the sub-film, so as to ensure that there is enough space between the sub-film and the mother mold to prevent the two from scratching, and secondly, it can buffer the elastic deformation of the sub-film to prevent damage to the sub-film. The mother mold is lightly pressed into a square structure by the support plate. Because the mother mold has a certain amount of elastic deformation, it can not only prevent the friction between the sub-film and the mother mold during demoulding, but also play a certain supporting role when the adsorption rubber ring is adsorbed on the inner surface of the workpiece (i.e., the sub-film).

[0036] The beneficial effects of the present invention are as follows:

[0037] 1. The present invention provides a threaded rod, one end of which is fixedly connected to a rotating handle, the other end of which is movably connected to a support plate, the threaded rod is threadedly connected to a threaded ring, and the threaded rod is rotated by rotating the rotating handle. Under the action of the thread force, the threaded rod drives the support plate to move so as to support the outer surface of the mother mold, and guide rods are fixedly connected above and below the support plate. The guide rods movably penetrate the fixed rods to guide the movement of the support plate, making its movement more stable.

[0038] 2. The present invention forms an annular space by placing a cylindrical mother mold between a suction cup mechanism and four support plates, and the four support plates are supported on the outer surface of the mother mold. The inner surface of the workpiece can be adsorbed in sequence by operating a vacuum device to separate it from the inner surface of the mother mold, and it is avoided to adsorb the inner surface of the workpiece simultaneously to separate it from the mother mold. Because adsorbing the workpiece (sub-membrane) to separate it from the mother mold at one time will cause friction between the workpiece (sub-membrane) and the mother mold, resulting in the scrapping of both or one of them, so they are sucked out one by one. After each part is sucked out, the handle needs to be rotated to push the support plate so that the deformation state of the mother mold is close to the sub-membrane, ensuring that there is enough space between the sub-membrane and the mother mold to prevent the two from scratching each other, and buffering the elastic deformation of the sub-membrane to prevent damage to the sub-membrane.

[0039] 3. The present invention has the advantages of non-destructively peeling off the sub-film from the inside of the cylinder without damaging the mother mold, solving the existing problem of peeling off the metal growth of the cylinder, increasing the service life of the mother mold, and separating the various parts of the sub-film from the mother mold in turn through a vacuum device, thereby shortening the demoulding time, improving the separation quality, and reducing the scrap rate of the workpiece and the mother mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the structure of the present invention;

[0041] Figure 2 It is a structural schematic diagram of the main body of the demoulding tooling;

[0042] Figure 3 It is a structural schematic diagram of the suction cup mechanism;

[0043] Figure 4 It is a schematic diagram of the structure in which the master mold is placed between the suction cup mechanism and the support plate;

[0044] Figure 5 It is a schematic diagram of the structure in which the support plate gently presses the master mold into a square shape;

[0045] Figure 6 It is a schematic diagram of the structure in which each adsorption rubber ring of the vacuum device is adsorbed on the inner surface of the workpiece;

[0046] Figure 7 A to H are schematic diagrams of the state structure in which the adsorption rubber ring of the vacuum device sequentially separates the workpiece from the inner surface of the mother mold.

[0047] In the figure: 1. annular bracket; 2. fixing rod; 3. threaded ring; 4. base; 5. threaded rod; 6. rotating handle; 7. guide rod; 8. support plate; 9. limit column; 10. pulley one; 11. suction cup mechanism; 1101. fixing bracket; 1102. lifting ring; 1103. cylinder; 1104. hollow square tube; 1107. hollow cylinder; 1108. pulley two; 12. mother mold; 13. workpiece; 14. vacuum device; 1401. vacuum pump; 1402. adsorption rubber ring; 1403. exhaust hole; 1404. pipeline; 1405. barometer. DETAILED DESCRIPTION

[0048] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0049] like Figures 1 to 7 As shown, a non-destructive separation device for metal growth in a cylinder includes a demolding tool body, a suction cup mechanism 11, and a vacuum device 14. The demolding tool body includes an annular bracket 1, a vertical fixed rod 2, a base 4, and a vertical support plate 8. The annular bracket 1 is circumferentially fixedly connected with four evenly distributed fixed rods 2, and the lower ends of the four fixed rods 2 are fixedly connected with the base 4. The four fixed rods 2, the annular bracket 1, and the base 4 form a cylindrical frame.

[0050] A threaded ring 3 is provided in the middle of the fixed rod 2, and the inner thread of the threaded ring 3 is connected to the threaded rod 5. The threaded ring 3 can play a supporting role for the threaded rod 5, making it more stable to move. A rotating handle 6 is fixedly connected to one end of the threaded rod 5, and the other end of the threaded rod 5 is movably connected to a movable support plate 8 located in a cylindrical frame. A guide rod 7 is fixedly connected to the upper and lower surfaces of one side of the support plate 8, respectively, and the guide rod 7 movably penetrates the fixed rod 2. A pulley 10 that can roll on the base 4 is installed at the lower end of the support plate 8.

[0051] A suction cup mechanism 11 is provided in the middle of the upper surface of the base 4, and an annular space is formed between the suction cup mechanism 11 and the four support plates 8. A cylindrical mother mold 12 is located in the annular space. The four support plates 8 are supported on the outer surface of the mother mold 12, and a metal-grown workpiece 13 is provided on the inner surface of the mother mold 12.

[0052] The vacuum device 14 includes four adsorption rubber rings 1402 , which are arranged on the outer surface of the suction cup mechanism 11 and respectively opposite to the four support plates 8 . The vacuum device 14 adsorbs the inner surface of the workpiece 13 through the adsorption rubber rings 1402 to separate it from the inner surface of the mother mold 12 .

[0053] The suction cup mechanism 11 includes a rectangular fixed bracket 1101, four vertical hollow square tubes 1104 respectively parallel to the four side surfaces of the fixed bracket 1101, four vertical limit columns 9 arranged in a matrix are fixedly connected to the middle of the upper surface of the base 4, and hollow cylinders 1107 are respectively arranged at the four corners of the fixed bracket 1101, and the hollow cylinders 1107 are mounted on the limit columns 9.

[0054] Cylinder groups are installed at the top and bottom of the fixed bracket 1101, respectively. The cylinder groups include four cylinders 1103 arranged in sequence from top to bottom, and the adjacent cylinders 1103 are perpendicular to each other. The upper and lower parts of the hollow square tube 1104 are fixedly connected to the output shaft of one cylinder 1103 in the corresponding cylinder group, respectively, and the adsorption rubber ring 1402 is fixed to the outer surface of the hollow square tube 1104. The length of the cylinder 1103 is greater than the radius of the female mold 12 and less than 2 / 3 of the diameter of the female mold 12. The lower end of the hollow square tube 1104 is installed with a pulley 1108 that can roll on the base 4. A lifting ring 1102 is fixedly connected to the upper surface of the fixed bracket 1101.

[0055] The vacuum device 14 includes a vacuum pump 1401, an exhaust hole 1403 located in the adsorption rubber ring 1402 and communicating with the inside of the hollow square tube 1104, and the top of the hollow square tube 1104 is connected to the suction end of the vacuum pump 1401 through a pipe 1404. A barometer 1405 is also provided on the pipe 1404. The vacuum pump 1401 can be placed outside the separation device, such as on the ground or on other working frames. The four hollow square tubes 1104 are respectively opposite to the four support plates 8, and the adsorption rubber rings 1402 are opposite to the corresponding support plates 8. The hardness of the adsorption rubber ring 1402 is less than 20 HA, and the width is in the range of 10-30 mm.

[0056] A method for non-destructive separation of metal growth in a cylinder, comprising the following steps:

[0057] First, the suction cup mechanism 11 is installed on the limiting column 9 through the four hollow cylinders 1107 at the four corners of the fixing bracket 1101. The limiting column 9 plays a role in lifting, fixing and guiding the suction cup mechanism 11, which facilitates the installation of the suction cup mechanism 11.

[0058] Then, a cylindrical mother mold 12 with a metal-grown workpiece 13 on its inner surface is placed in an annular space formed between the suction cup mechanism 11 and the four support plates 8 .

[0059] By rotating the rotating handle 6, the threaded rod 5 is rotated, and the threaded rod 5 drives the support plate 8 to move under the action of the thread force to support the outer surface of the mother mold 12. The mother mold 12 can be lightly pressed into a square structure by the support plate 8. Because the mother mold 12 has a certain elastic deformation, it can not only prevent the friction between the sub-film and the mother mold 12 during demoulding, but also play a certain supporting role when the adsorption rubber ring 1402 is adsorbed on the inner surface of the workpiece 13 (i.e., the sub-film). The guide rods 7 above and below the support plate 8 play a guiding role in the movement of the support plate 8, making its movement more stable.

[0060] refer to Figure 6 , each hollow square tube 1104 is driven to move by each cylinder 1103, so that each adsorption rubber ring 1402 is pressed against the inner surface of the workpiece 13, and a vacuum environment is formed inside the adsorption rubber ring 1402 by operating the vacuum pump 1401 of the vacuum pumping device 14, so that the adsorption rubber ring 1402 is adsorbed on the inner surface of the workpiece 13 (i.e., the sub-membrane).

[0061] refer to Figure 7, operate the cylinder 1103 to move the hollow square tube 1104 on one side toward the center of the suction cup mechanism 11, so that the workpiece 13 adsorbed by the adsorption rubber ring 1402 on the hollow square tube 1104 on this side is separated from the inner surface of the mother mold 12, and at the same time push the support plate 8 opposite to the hollow square tube 1104 on this side, so that the deformation state of the mother mold 12 on this side is close to the sub-membrane, and the space between the sub-membrane and the mother mold 12 is ensured to buffer the elastic deformation of the sub-membrane and prevent the sub-membrane from being damaged. By analogy, the workpiece 13 is separated from the inner surface of the mother mold 12 in turn through the adsorption rubber ring 1402 on each hollow square tube 1104. In this embodiment, after separating one side, the workpiece 13 and the mother mold 12 on the opposite side are separated to form a symmetrical support force during separation, so that the separation effect is better and the scratches of the sub-mold and the mother mold are avoided to the greatest extent.

[0062] When the workpiece 13 is completely separated from the mother mold 12, the entire suction cup mechanism 11 is lifted by the lifting ring 1102, and then the vacuum pump 1401 is exhausted to remove the workpiece 13.

[0063] Finally, each support plate 8 is moved away from the mother mold 12, and the mother mold 12 is restored to its original state and can be used repeatedly.

[0064] It should be explained here that if three support plates 8 are evenly arranged, the mother mold 12 is lightly pressed into a triangular structure by the support plates 8. Although the workpiece 13 can be separated from the mother mold 12, the workpiece 13 and the mother mold 12 are more likely to collide with each other, resulting in both being scrapped. If five support plates 8 are evenly arranged, the mother mold 12 is lightly pressed into a pentagonal structure by the support plates 8. Under the condition of a certain circumference, the distance of the cylinder 1103 pulling back is too small, which will result in the inability to completely separate the workpiece 13 from the mother mold 12, resulting in scrapping.

[0065] Therefore, the present invention has the advantages of non-destructively peeling off the sub-film from the inside of the cylinder without damaging the mother mold, thereby increasing the service life of the mother mold, and separating the various parts of the sub-film from the mother mold in sequence through a vacuum device, thereby shortening the demoulding time, improving the separation quality, and reducing the scrap rate of the workpiece and the mother mold.

[0066] This embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention. Obviously, the described embodiment is only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present invention.

Claims

1. A non-destructive separation device for metal growth in a cylinder, comprising a demoulding tool body, the demoulding tool body comprising an annular bracket (1), characterized in that: It also includes a suction cup mechanism (11) and a vacuum extraction device (14); the demoulding tooling body also includes a vertical fixed rod (2), a base (4), and a vertical support plate (8); the annular bracket (1) is circumferentially fixedly connected to four evenly distributed fixed rods (2); the lower ends of the four fixed rods (2) are fixedly connected to the base (4); the four fixed rods (2), the annular bracket (1), and the base (4) form a cylindrical frame; A threaded rod (5) is threadedly connected to the middle of the fixed rod (2); one end of the threaded rod (5) is fixedly connected to a rotating handle (6); the other end of the threaded rod (5) is movably connected to a movable support plate (8) located in a cylindrical frame; a guide rod (7) is fixedly connected to the upper and lower sides of one side surface of the support plate (8); the guide rod (7) movably passes through the fixed rod (2); A suction cup mechanism (11) is provided in the middle of the upper surface of the base (4), an annular space is formed between the suction cup mechanism (11) and the four support plates (8), a cylindrical mother mold (12) is located in the annular space, the four support plates (8) are supported on the outer surface of the mother mold (12), and a workpiece (13) on which metal growth has been completed is provided on the inner surface of the mother mold (12); The vacuum extraction device (14) comprises four adsorption rubber rings (1402), the four adsorption rubber rings (1402) being arranged on the outer surface of the suction cup mechanism (11) and respectively opposite to the four support plates (8), and the vacuum extraction device (14) adsorbs the inner surface of the workpiece (13) through the adsorption rubber rings (1402) to separate it from the inner surface of the master mold (12); The suction cup mechanism (11) comprises a rectangular fixed bracket (1101), four vertical hollow square tubes (1104) respectively parallel to four side surfaces of the fixed bracket (1101), a cylinder group is respectively installed on the upper and lower parts of the fixed bracket (1101), the cylinder group comprises four cylinders (1103) arranged in sequence from top to bottom, and adjacent cylinders (1103) are perpendicular to each other, and the upper and lower parts of the hollow square tube (1104) are respectively fixedly connected to the output shaft of a cylinder (1103) in the corresponding cylinder group; A pulley (10) which can roll on the base (4) is mounted at the lower end of the support plate (8).

2. The device for non-destructive separation of metal growth in a cylinder as claimed in claim 1, characterized in that: The adsorption rubber ring (1402) is fixed to the outer surface of the hollow square tube (1104).

3. The device for non-destructive separation of metal growth in a cylinder as claimed in claim 2, characterized in that: The vacuum pumping device (14) further comprises a vacuum pump (1401), an exhaust hole (1403) located inside the adsorption rubber ring (1402) and communicating with the inside of the hollow square tube (1104), and the top of the hollow square tube (1104) is connected to the suction end of the vacuum pump (1401) via the pipeline (1404).

4. The device for non-destructive separation of metal growth in a cylinder as claimed in claim 3, characterized in that: The four hollow square tubes (1104) are respectively opposite to the four support plates (8), and the adsorption rubber ring (1402) is opposite to the corresponding support plate (8).

5. The device for non-destructive separation of metal growth in a cylinder as claimed in claim 2, characterized in that: A lifting ring (1102) is fixedly connected to the upper surface of the fixing bracket (1101).

6. The device for non-destructive separation of metal growth in a cylinder as claimed in claim 2, characterized in that: Four vertical limiting columns (9) arranged in a matrix are fixedly connected to the middle of the upper surface of the base (4), and hollow columns (1107) are respectively provided at the four corners of the fixed bracket (1101), and the hollow columns (1107) are mounted on the limiting columns (9).

7. The device for non-destructive separation of metal growth in a cylinder as claimed in claim 2, characterized in that: A second pulley (1108) capable of rolling on the base (4) is installed at the lower end of the hollow square tube (1104).

8. The device for non-destructive separation of metal growth in a cylinder as claimed in claim 2, characterized in that: The length of the cylinder (1103) is greater than the radius of the female mold (12) and less than 2 / 3 of the diameter of the female mold (12).

9. The device for non-destructive separation of metal growth in a cylinder as claimed in claim 3, characterized in that: The hardness of the adsorption rubber ring (1402) is less than 20 HA and the width is in the range of 10-30 mm.

10. A method for non-destructive separation of metal growth in a cylinder, characterized in that: The method is implemented by using the non-destructive separation device for metal growth in a cylinder as described in any one of claims 1 to 9, comprising the following steps: a. placing a cylindrical mother mold (12) having a workpiece (13) with grown metal on its inner surface into an annular space formed between a suction cup mechanism (11) and four support plates (8); b. The threaded rod (5) is rotated by rotating the rotating handle (6), and the threaded rod (5) drives the support plate (8) to move under the action of the thread force, so as to support the outer surface of the mother mold (12), and the mother mold (12) can be lightly pressed into a square structure through the support plate (8); c. driving the hollow square tubes (1104) to move by the cylinders (1103) so that the adsorption rubber rings (1402) are pressed against the inner surface of the workpiece (13); and forming a vacuum environment in the adsorption rubber rings (1402) by operating the vacuum pump (1401) of the vacuum extraction device (14), so that the adsorption rubber rings (1402) are adsorbed on the inner surface of the workpiece (13); d. operating the cylinder (1103) to move the hollow square tube (1104) on one side toward the center of the suction cup mechanism (11), so that the workpiece (13) adsorbed by the adsorption rubber ring (1402) on the hollow square tube (1104) on the side is separated from the inner surface of the mother mold (12), and at the same time, pushing the support plate (8) opposite to the hollow square tube (1104) on the side, so that the deformation state of the mother mold (12) on the side is close to the workpiece (13), thereby ensuring the space between the workpiece (13) and the mother mold (12); and so on, the workpiece (13) is separated from the inner surface of the mother mold (12) in turn through the adsorption rubber ring (1402) on each hollow square tube (1104); e. After the workpiece (13) is completely separated from the master mold (12), the entire suction cup mechanism (11) is lifted by the lifting ring (1102), and then the vacuum pump (1401) is exhausted to remove the workpiece (13); f. Finally, each support plate (8) is moved away from the mother mold (12), and the mother mold (12) is restored to its original state.

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