Plastic cup blister forming device

Abstract

The present invention relates to the technical field of plastic cup vacuum forming equipment, and more particularly to a plastic cup vacuum forming device, comprising an upper template assembly and a lower template assembly, the lower template assembly being provided with a forming cavity, the upper template assembly comprising a first cooling duct and an image acquisition assembly, the first cooling duct being disposed within the upper template assembly and having an air inlet and a plurality of air outlets, the image acquisition assembly comprising an image housing slidably mounted at the air outlets, a second cooling duct being disposed within the image housing and communicating with the first cooling duct, and an image acquisition module being fixed within the image housing for acquiring images of the end of an upper mold sleeve. The present invention cools the cutting edge of the upper mold sleeve via the first and second cooling ducts, thereby preventing heat accumulation at the cutting edge of the upper mold sleeve after long-term use and thereby increasing the service life of the upper mold sleeve.

Description

Technical Field

[0001] The invention relates to the technical field of plastic cup vacuum forming equipment, in particular to a plastic cup vacuum forming device. Background Art

[0002] A plastic cup vacuum forming device is a specialized device that processes thermoplastic plastic sheets into cup shapes through vacuum suction and heat forming. Conventional technology typically consists of an upper mold assembly and a lower mold assembly. The upper mold assembly houses a slidable upper mold sleeve, while the molding cavity of the lower mold assembly cooperates with the upper mold sleeve to form a closed molding space. During the molding process, the upper mold sleeve and the mold core work together to vacuum-suction the softened plastic sheet to the mold surface, forming the cup body. Finally, the upper mold sleeve's cutting edge removes excess material, completing the cup separation.

[0003] At present, since the upper mold sleeve frequently contacts high-temperature softened plastic during the molding process, its cutting edge is directly involved in the cutting of the cup body, which is prone to local heat accumulation, causing the cutting edge hardness to decrease, and then causing cutting edge wear, chipping and other problems, shortening the service life of the mold, and causing burrs, deformation and other defects on the edge of the cut cup body. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to propose a plastic cup vacuum forming device to solve the problem that the upper mold sleeve frequently contacts the high-temperature softened plastic during the forming process, and its cutting edge is directly involved in the cutting of the cup body, which is prone to local heat accumulation and causes the cutting edge hardness to decrease.

[0005] Based on the above purpose, the present invention provides a plastic cup vacuum forming device, including an upper template group and a lower template group, the lower template group is provided with a forming cavity, the upper template group is equipped with an upper mold sleeve adapted to the forming cavity, the upper mold sleeve can slide vertically, the upper template group is slidably mounted with a sleeve rod extending into the forming cavity, the bottom end of the sleeve rod is fixed with a mold core arranged in the forming cavity, the upper template group is provided with a cooling flow channel connected to the outside for circulating a cooling medium; the upper template group includes a first cooling air duct, which is opened in the upper template group , having an air inlet and a plurality of air outlets; an image acquisition component, having an image shell slidably mounted at the air outlet, the image shell being able to move along the sliding direction of the upper mold sleeve, and being able to rotate in the center line direction of the upper mold sleeve, a second cooling air duct connected to the first cooling air duct is provided in the image shell, an image acquisition module for collecting images of the end portion of the upper mold sleeve is fixed in the image shell, a plurality of air outlet holes connected to the second cooling air duct are provided on the outer peripheral wall of the image shell, and the air outlet holes are arranged toward the cutting edge of the upper mold sleeve.

[0006] In one embodiment, the image housing includes a rotating shell and a telescopic shell. The rotating shell is installed in the upper template group by rotating, and the telescopic shell is installed in the rotating shell by sliding and can slide vertically. The second cooling air duct is arranged in the telescopic shell. A plurality of air guide grooves are opened on the outer wall of the telescopic shell. The air guide grooves can be connected to the first cooling air duct. The image acquisition module is fixed in the telescopic shell and passes through the rotating shell.

[0007] In one embodiment, an observation port is provided on the outer wall of the telescopic shell, the image acquisition module includes an optical component, the optical component has a lens for capturing images, the lens is arranged at the observation port, and the air outlet holes are distributed in a circular array with the lens as the center and are arranged toward the cutting edge of the upper mold sleeve.

[0008] In one embodiment, an air guide ring is fixed at the observation port, the air outlet is opened on the air guide ring, a sealing ring is provided on the outer wall of the lens at one end of the air guide ring facing the second cooling air duct, and a guide groove is provided on the inner wall of the air guide ring facing the lens.

[0009] In one embodiment, the telescopic housing comprises an annular housing, a top annular cover is fixed to the upper end of the annular housing, and a bottom end cover is fixed to the lower end of the annular housing.

[0010] In one embodiment, a sliding groove is provided on the inner wall of the rotating shell, at least one guide strip is provided on the inner wall of the sliding groove, a limiting flange 1 extending toward the inside of the sliding groove is provided at the bottom of the sliding groove, a limiting flange 2 extending outward is provided on the outer wall of the annular shell, and a guide groove adapted to the guide strip is provided on the outer wall of the limiting flange 2.

[0011] In one embodiment, an electromagnetic module is fixed to one end of the rotating shell facing away from the telescopic shell. The electromagnetic module has a magnetic end that generates magnetic force through electricity. The top ring cover is made of magnetic conductive material, and the top ring cover can move toward the electromagnetic module through magnetic force.

[0012] In one embodiment, a sliding electromagnetic ring is fixed in the upper template group, the rotating end of the sliding electromagnetic ring is fixedly connected to the electromagnetic module, the image acquisition module passes through the sliding electromagnetic ring and extends out of the sliding electromagnetic ring, a spring is provided in the rotating shell, the spring is sleeved on the outer wall of the image acquisition module, one end of the spring is in conflict with the top ring cover, and the other end of the spring is in conflict with the rotating end of the sliding electromagnetic ring.

[0013] In one embodiment, a puncture portion is provided on one end of the telescopic housing that faces toward the lower template assembly, and a receiving groove is provided on one end of the lower template assembly that faces toward the upper template assembly.

[0014] In one embodiment, the image acquisition component includes a drive module, which includes a drive motor installed in the upper template group, a drive gear is fixed to the output shaft of the drive motor, an outwardly extending extension flange is provided on the outer wall of the rotating shell, and a plurality of driven teeth are provided on the outer wall of the extension flange. The driven teeth are arranged in a ring shape with the rotation center of the rotating shell as the center line, and the drive gear is engaged with the driven teeth.

[0015] The beneficial effects of the present invention are as follows: the cutting edge of the upper mold sleeve is cooled by the first cooling air duct and the second cooling air duct, thereby avoiding heat accumulation at the cutting edge of the upper mold sleeve after long-term use, and improving the service life of the upper mold sleeve. At the same time, an integrated design is adopted, and the image acquisition module is arranged at the air outlet to monitor the image at the cutting edge of the upper mold sleeve in real time, so that the operator can adjust the relevant parameters in time, avoid defective products, improve product quality stability, and trace the root cause of product quality problems, provide data support for process parameter optimization, and promote production intelligence upgrades. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 Schematic diagram of the three-dimensional structure of an embodiment of the present invention Figure 1 ;

[0018] Figure 2 Schematic diagram of the three-dimensional structure of an embodiment of the present invention Figure 2 ;

[0019] Figure 3 is a cross-sectional view of an upper template assembly in an embodiment of the present invention;

[0020] Figure 4 for Figure 3 A magnified schematic diagram of the structure in middle I;

[0021] Figure 5 Schematic diagram of the three-dimensional structure of the image acquisition component in an embodiment of the present invention;

[0022] Figure 6 Schematic diagram of the exploded structure of the image acquisition component in an embodiment of the present invention;

[0023] Figure 7 Schematic diagram of the exploded structure of the image acquisition module in an embodiment of the present invention;

[0024] Figure 8 Schematic diagram of the three-dimensional structure of the air guide ring in an embodiment of the present invention;

[0025] Figure 9 Schematic diagram of the three-dimensional structure of the rotating shell in an embodiment of the present invention;

[0026] Figure 10 Schematic diagram of the explosion structure of the telescopic shell in the embodiment of the present invention Figure 1 ;

[0027] Figure 11 Schematic diagram of the explosion structure of the telescopic shell in the embodiment of the present invention Figure 2 .

[0028] The following are marked in the figure:

[0029] 1. Upper template assembly; 11. First cooling air duct; 12. Air outlet; 13. Mounting cavity; 2. Lower template assembly; 21. Accommodation slot; 3. Upper mold sleeve; 4. Sleeve rod; 5. Mold core; 6. Image acquisition assembly; 61. Image housing; 611. Rotating housing; 6111. Sliding slot; 6112. Guide strip; 6113. Limiting flange 1; 6114. Extension flange; 6115. Driven gear; 612. Telescopic housing; 6121. Observation port; 6122. Ring housing; 61221. Limiting flange Flange 2; 61222, guide groove; 6123, top ring cover; 6124, bottom end cover; 6125, puncture part; 613, air guide groove; 614, air guide ring; 615, sealing ring; 616, guide groove; 62, second cooling air duct; 63, image acquisition module; 631, optical component; 632, reflector; 633, sensor; 64, air outlet; 65, electromagnetic module; 651, magnetic end; 7, sliding electromagnetic ring; 8, spring; 91, drive motor; 92, drive gear. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0031] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0032] In one embodiment, see Figures 1 to 5 As shown, the present invention provides a plastic cup vacuum forming device, which includes an upper template group 1 and a lower template group 2. The lower template group 2 is provided with a forming cavity and is used to accommodate a plastic sheet to be formed.

[0033] An upper die sleeve 3 adapted to the forming cavity is housed in the upper die plate assembly 1 . The upper die sleeve 3 can slide vertically to achieve closing and separation with the forming cavity.

[0034] A sleeve rod 4 extending into the molding cavity is slidably mounted on the upper template assembly 1 , and a mold core 5 disposed in the molding cavity is fixed to the bottom end of the sleeve rod 4 . The mold core 5 precisely fits the shape of the molding cavity to ensure molding accuracy.

[0035] A cooling channel connected to the outside is provided in the upper template group 1 for circulating a cooling medium, wherein the cooling channel is connected to an external cooling medium circulation system.

[0036] Upper template group 1 includes:

[0037] The first cooling air duct 11 is provided in the upper mold plate assembly 1 and has an air inlet and a plurality of air outlets 12. The first cooling air duct 11 is connected to an external air cooling device, which is used to provide cooling gas.

[0038] The image acquisition component 6 has an image housing 61 slidably mounted at the air outlet 12. The image housing 61 can move along the sliding direction of the upper mold sleeve 3 and can rotate in the center line direction of the upper mold sleeve 3. A second cooling air duct 62 connected to the first cooling air duct 11 is provided in the image housing 61. An image acquisition module 63 for capturing the image of the end of the upper mold sleeve 3 is fixed in the image housing 61. A plurality of air outlet holes 64 connected to the second cooling air duct 62 are provided on the outer peripheral wall of the image housing 61, and the air outlet holes 64 are arranged toward the cutting edge of the upper mold sleeve 3.

[0039] Working principle of the present invention:

[0040] S1: Place the heated and softened plastic sheet in the molding cavity of the lower template group 2. The upper mold sleeve 3 and the mold core 5 are in the initial position. The upper template group 1 and the lower template group 2 move relative to each other in the same direction and close the molding cavity. The plastic sheet is attached to the mold core 5 and the molding cavity surface through vacuum adsorption to form a cup shape.

[0041] S2: The upper mold set 1 and the lower mold set 2 continue to move relative to each other in the same direction, and the upper mold sleeve 3 conflicts with the end of the molding cavity, cutting off the cup body.

[0042] S3: After the cup body is formed, the upper template group 1 and the lower template group 2 move in opposite directions, and the cup body is blown out of the molding cavity.

[0043] S4: The image housing 61 moves downward until it moves to the set position and rotates, the air cooling device works, the cooling air flow passes through the first cooling air duct 11 and the second cooling air duct 62, and is ejected from the air outlet 64 to cool the cutting edge of the upper mold sleeve 3. At the same time, the image acquisition module 63 collects the cutting edge image of the upper mold sleeve 3 and transmits the data to the operator.

[0044] In summary, this example cools the cutting edge of the upper mold sleeve 3 through the first cooling air duct 11 and the second cooling air duct 62, thereby avoiding heat accumulation at the cutting edge of the upper mold sleeve 3 after long-term use, and improving the service life of the upper mold sleeve 3. At the same time, an integrated design is adopted, and the image acquisition module 63 is arranged at the air outlet 12 to monitor the image at the cutting edge of the upper mold sleeve 3 in real time, so that the operator can adjust the relevant parameters in time, avoid defective products, improve product quality stability, and trace the root cause of product quality problems, provide data support for process parameter optimization, and promote production intelligence upgrades.

[0045] In an alternative example, see Figures 1 to 7 As shown, the image housing 61 includes a rotating housing 611 and a telescopic housing 612. The rotating housing 611 is installed in the upper template group 1 by rotation, and the telescopic housing 612 is installed in the rotating housing 611 by sliding and can slide vertically. The second cooling air duct 62 is provided in the telescopic housing 612. The outer wall of the telescopic housing 612 is provided with a plurality of air guide grooves 613, which can be connected to the first cooling air duct 11. The image acquisition module 63 is fixed in the telescopic housing 612 and passes through the rotating housing 611. Among them, the upper template group 1 is provided with a mounting cavity 13. The rotating housing 611 is inserted into the mounting cavity 13 by means of a bearing connection. The air outlet 12 is provided at the bottom of the upper template group 1 and is connected to the mounting cavity 13. The telescopic housing 612 can move within the air outlet 12.

[0046] Specifically, in this example, the rotating shell 611 can rotate at multiple angles, realizing all-round detection of the cutting edge, facilitating maintenance and replacement of the upper mold sleeve 3, and ensuring the stability of the upper mold sleeve 3 through the cooperation of the air guide groove 613 and the first cooling air duct 11.

[0047] In an alternative example, see Figures 1 to 8 As shown, the outer wall of the telescopic housing 612 is provided with an observation port 6121. The image acquisition module 63 includes an optical component 631 having a lens for capturing images. The lens is positioned at the observation port 6121. Air outlets 64 are arranged in a circular array centered on the lens and facing the cutting edge of the upper mold sleeve 3. The image acquisition module 63 includes a reflector 632 and a sensor 633. Light first passes through the lens and is refracted by the reflector 632 before reaching the surface of the sensor 633. The reflector 632 effectively reduces the horizontal volume of the telescopic housing 612, ensuring the number of plastic cups molded.

[0048] Specifically, in this example, the camera and the cooling path are designed concentrically, and a single structure realizes the dual functions of cooling and monitoring, effectively reducing the manufacturing difficulty and production cost of the plastic cup blister forming device.

[0049] In an alternative example, see Figures 1 to 8 As shown, an air guide ring 614 is fixed to the observation port 6121 by bonding, the air outlet 12 is opened on the air guide ring 614, and a sealing ring 615 is provided on the outer wall of the lens at one end of the air guide ring 614 facing the second cooling air duct 62, and a guide groove 616 facing the lens is opened on the inner wall of the air guide ring 614.

[0050] Specifically, in this example, the air guide ring 614 and the guide groove 616 work together to form a "ring-shaped wind curtain" of cooling air along the surface of the lens, effectively taking away the heat from the lens and the cutting edge, and avoiding local overheating. The air guide ring 614 is detachable, which is convenient for quick cleaning or replacement of the sealing ring 615, reducing maintenance time. The guide groove 616 can guide part of the gas toward the upper lens direction to clean the lens direction, thereby ensuring the accuracy of image acquisition.

[0051] In an alternative example, see Figures 1 to 8 As shown, the telescopic housing 612 includes an annular housing 6122 , a top ring cover 6123 is fixed to the upper end of the annular housing 6122 by means of bolts, and a bottom end cover 6124 is fixed to the lower end of the annular housing 6122 by means of bolts.

[0052] Specifically, this example effectively reduces the manufacturing and assembly difficulties of the telescopic shell 612 and improves the disassembly and assembly efficiency of the telescopic shell 612 by splitting the telescopic shell 612 into a ring-shaped shell 6122, a top ring cover 6123 and a bottom end cover 6124.

[0053] In an alternative example, see Figures 1 to 9 As shown, the inner wall of the rotating housing 611 is provided with a sliding groove 6111, and the inner wall of the sliding groove 6111 is provided with at least one guide bar 6112. The bottom of the sliding groove 6111 is provided with a first limiting flange 6113 extending into the sliding groove 6111. The outer wall of the annular housing 6122 is provided with a second limiting flange 61221 extending outward, and the outer wall of the second limiting flange 61221 is provided with a guide groove 61222 that matches the guide bar 6112. The first limiting flange 6113 and the second limiting flange 61221 can contact each other and limit the vertical movement of the annular housing 6122. When the annular housing 6122 slides, the guide bar 6112 engages with the guide groove 61222, ensuring the accuracy and stability of the motion trajectory.

[0054] Specifically, this example adds a sliding groove 6111, a guide bar 6112 and a limiting structure, so that the telescopic shell 612 not only achieves a reliable axial telescopic function, but also ensures the stability and safety of movement through precise guidance and two-way limiting.

[0055] In an alternative example, see Figures 1 to 11 As shown, an electromagnetic module 65 is bolted to one end of the rotating housing 611, facing away from the telescopic housing 612. The electromagnetic module 65 has a magnetic end 651 that generates magnetic force through electricity. The top ring cover 6123 is made of a magnetically conductive material, enabling it to move toward the electromagnetic module 65 through magnetic force. The rotating housing 611 is a hollow cylindrical structure. Both the rotating housing 611 and the telescopic housing 612 are made of non-magnetic materials, such as aluminum alloy or plastic, to prevent magnetic forces from affecting the rotation of the rotating housing 611. When the electromagnetic module 65 is energized, the coil generates a magnetic field, and the magnetic end 651 exerts an attractive force on the top ring cover 6123, causing it to move toward the electromagnetic module 65.

[0056] Specifically, this example drives the top ring cover 6123 to move through electromagnetic force, without the need for a complex mechanical transmission mechanism, and can achieve remote control and precise displacement adjustment, reducing the manufacturing difficulty of the image acquisition component 6. At the same time, the electromagnetic module 65 is directly integrated into the end of the rotating shell 611, reducing the space occupied and manufacturing cost of the image acquisition component 6.

[0057] In an alternative example, see Figures 1 to 11As shown, a sliding electromagnetic ring 7 is fixed within the upper template assembly 1. The rotating end of the sliding electromagnetic ring 7 is fixedly connected to the electromagnetic module 65. The image acquisition module 63 passes through the sliding electromagnetic ring 7 and extends out of the sliding electromagnetic ring 7. A spring 8 is provided within the rotating housing 611. The spring 8 is sleeved on the outer wall of the image acquisition module 63. One end of the spring 8 contacts the top ring cover 6123, and the other end of the spring 8 contacts the rotating end of the sliding electromagnetic ring 7. When the electromagnetic module 65 is powered off, the spring 8 pushes the sliding electromagnetic ring 7 and the top ring cover 6123 to reset, ensuring system stability. The fixed end of the sliding electromagnetic ring 7 is fixedly connected to the upper template assembly 1. The sliding electromagnetic ring 7 is connected to an external power supply device and is used to provide current.

[0058] Specifically, this example achieves the accuracy, dynamic stability and environmental adaptability of electromagnetic regulation through the combined design of the sliding electromagnetic ring 7 and the spring 8, reducing the manufacturing difficulty and manufacturing cost of the image acquisition module 63.

[0059] In an alternative example, see Figures 1 to 11 As shown, the telescopic housing 612 has a piercing portion 6125 at one end facing the lower template assembly 2, and a receiving slot 21 at the other end facing the upper template assembly 1. The piercing portion 6125 is conical and located at the lower end of the bottom end cap 6124. The depth of the receiving slot 21 matches the maximum extension length of the piercing portion 6125, ensuring that the piercing portion 6125 does not interfere with other structures of the lower template assembly 2 when fully inserted.

[0060] Specifically, in this example, the piercing portion 6125 enables the telescopic shell 612 to pierce the plastic film during the downward movement, thereby avoiding pulling the plastic film and affecting the molding of the plastic cup body.

[0061] In an alternative example, see Figures 1 to 11 As shown, the image acquisition assembly 6 includes a drive module, which includes a drive motor 91 mounted within the upper mold assembly 1. A drive gear 92 is secured to the output shaft of the drive motor 91 via a keyed connection. An outwardly extending flange 6114 is provided on the outer wall of the rotating housing 611. A plurality of driven teeth 6115 are formed on the outer wall of the extended flange 6114. The driven teeth 6115 are arranged in a ring shape with the rotation center of the rotating housing 611 as the centerline, and the drive gear 92 meshes with the driven teeth 6115. The drive motor 91 is bolted to the mounting cavity 13. When the drive motor 91 is energized, the output shaft rotates the drive gear 92, which, through the meshing transmission between the gear teeth and the driven teeth 6115, drives the rotating housing 611 to rotate about its axis.

[0062] Specifically, in this example, the image sensor 633, lens and other core components are installed inside the rotating shell 611, and its rotational movement is precisely controlled by the driving module to achieve multi-angle or continuous scanning image acquisition, and the extended flange 6114 and the driven tooth 6115 are integrated into the design, which, together with the annular extended flange 6114, saves internal space, reduces the equipment volume of the image acquisition component 6, and ensures the number of plastic cups formed.

[0063] In general, the present invention cools the cutting edge of the upper mold sleeve 3 through the first cooling air duct 11 and the second cooling air duct 62, thereby avoiding heat accumulation at the cutting edge of the upper mold sleeve 3 after long-term use, and improving the service life of the upper mold sleeve 3. At the same time, an integrated design is adopted, and the image acquisition module 63 is arranged at the air outlet 12 to monitor the image at the cutting edge of the upper mold sleeve 3 in real time, so that the operator can adjust the relevant parameters in time to avoid defective products and improve the stability of product quality. In addition, the image sensor 633, lens and other core components are installed inside the rotating shell 611, and its rotational movement is precisely controlled by the driving module to realize multi-angle or continuous scanning image acquisition, save internal space, reduce the equipment volume of the image acquisition component 6, and ensure the number of plastic cups formed.

[0064] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0065] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A plastic cup vacuum forming device, comprising an upper template group (1) and a lower template group (2), wherein the lower template group (2) is provided with a forming cavity, an upper mold sleeve (3) adapted to the forming cavity is installed in the upper template group (1), and the upper mold sleeve (3) can slide vertically, a sleeve rod (4) extending into the forming cavity is slidably mounted on the upper template group (1), a mold core (5) arranged in the forming cavity is fixed at the bottom end of the sleeve rod (4), and a cooling channel connected to the outside is opened in the upper template group (1) for circulating a cooling medium, characterized in that: The upper template group (1) comprises: A first cooling air duct (11) is provided in the upper template assembly (1) and has an air inlet and a plurality of air outlets (12); An image acquisition component (6) includes an image housing (61) slidably mounted at an air outlet (12), wherein the image housing (61) is movable along a sliding direction of the upper mold sleeve (3) and is rotatable in a centerline direction of the upper mold sleeve (3), wherein a second cooling air duct (62) communicating with the first cooling air duct (11) is provided in the image housing (61), wherein an image acquisition module (63) for collecting an image of an end portion of the upper mold sleeve (3) is fixed in the image housing (61), and a plurality of air outlet holes (64) communicating with the second cooling air duct (62) are provided on an outer peripheral wall of the image housing (61), wherein the air outlet holes (64) are arranged toward a cutting edge of the upper mold sleeve (3); The image housing (61) includes a rotating housing (611) and a telescopic housing (612), wherein the rotating housing (611) is installed in the upper template group (1) in a rotating manner, and the telescopic housing (612) is installed in the rotating housing (611) in a sliding manner and can slide vertically, the second cooling air duct (62) is arranged in the telescopic housing (612), and a plurality of air guide grooves (613) are provided on the outer wall of the telescopic housing (612), and the air guide grooves (613) can be connected to the first cooling air duct (11), and the image acquisition module (63) is fixed in the telescopic housing (612) and passes through the rotating housing (611); An observation port (6121) is provided on the outer wall of the telescopic housing (612); the image acquisition module (63) includes an optical component (631); the optical component (631) has a lens for acquiring images; the lens is arranged at the observation port (6121); the air outlet holes (64) are distributed in a circular array with the lens as the center and are arranged toward the cutting edge of the upper mold sleeve (3); The end of the telescopic housing (612) facing the direction close to the lower template group (2) is provided with a puncturing portion (6125), and the end of the lower template group (2) facing the direction close to the upper template group (1) is provided with a receiving groove (21).

2. The plastic cup vacuum forming device according to claim 1, characterized in that: An air guide ring (614) is fixed at the observation port (6121), the air outlet (12) is provided on the air guide ring (614), one end of the air guide ring (614) facing the second cooling air duct (62) is provided with a sealing ring (615) mounted on the outer wall of the lens, and a guide groove (616) facing the direction of the lens is provided on the inner wall of the air guide ring (614).

3. The plastic cup vacuum forming device according to claim 2, characterized in that: The telescopic shell (612) includes an annular shell (6122), a top annular cover (6123) is fixed to the upper end of the annular shell (6122), and a bottom end cover (6124) is fixed to the lower end of the annular shell (6122).

4. The plastic cup vacuum forming device according to claim 3, characterized in that: A sliding groove (6111) is provided on the inner wall of the rotating shell (611), at least one guide strip (6112) is provided on the inner wall of the sliding groove (6111), a limiting flange 1 (6113) extending toward the inside of the sliding groove (6111) is provided at the bottom of the sliding groove (6111), a limiting flange 2 (61221) extending outward is provided on the outer wall of the annular shell (6122), and a guide groove (61222) adapted to the guide strip (6112) is provided on the outer wall of the limiting flange 2 (61221).

5. The plastic cup vacuum forming device according to claim 4, characterized in that: An electromagnetic module (65) is fixed to one end of the rotating shell (611) facing away from the telescopic shell (612), and the electromagnetic module (65) has a magnetic end (651) that generates magnetic force through electricity. The top ring cover (6123) is made of magnetic conductive material, and the top ring cover (6123) can move toward the electromagnetic module (65) through magnetic force.

6. The plastic cup vacuum forming device according to claim 5, characterized in that: A sliding electromagnetic ring (7) is fixed in the upper template group (1), and the rotating end of the sliding electromagnetic ring (7) is fixedly connected to the electromagnetic module (65). The image acquisition module (63) passes through the sliding electromagnetic ring (7) and extends out of the sliding electromagnetic ring (7). A spring (8) is provided in the rotating shell (611), and the spring (8) is sleeved on the outer wall of the image acquisition module (63). One end of the spring (8) is in conflict with the top ring cover (6123), and the other end of the spring (8) is in conflict with the rotating end of the sliding electromagnetic ring (7).

7. The plastic cup vacuum forming device according to claim 1, characterized in that: The image acquisition assembly (6) includes a drive module, the drive module includes a drive motor (91) installed in the upper template group (1), a drive gear (92) is fixed to the output shaft of the drive motor (91), an outwardly extending extension flange (6114) is provided on the outer wall of the rotating shell (611), a plurality of driven teeth (6115) are provided on the outer wall of the extension flange (6114), the driven teeth (6115) are arranged in a ring shape with the rotation center of the rotating shell (611) as the center line, and the drive gear (92) is meshed with the driven teeth (6115).

Images