An intelligent conveying device for PET film coating

Abstract

The present invention relates to the technical field of PET coating film production, and specifically to an intelligent conveying device for PET film coating, which is used to accurately convey the PET film on a barrel. The conveying device includes a frame and a main shaft arranged on the frame. Two positioning members for positioning the barrel are movably arranged on the frame. The positioning members are provided with an auxiliary fixing mechanism for fixing the positioning members. The auxiliary fixing mechanism includes a fixing component for fixing the positioning member and a control component for controlling the opening and closing of the fixing component. The present invention successfully realizes the flexible and accurate positioning function of the barrel by cleverly using the positioning members and the auxiliary fixing mechanism. This not only ensures the stable conveying of the PET film, but also significantly improves the positioning accuracy, thereby effectively reducing the coating dead angle and improving the overall coating quality.

Description

Technical Field

[0001] The invention relates to the technical field of PET coating film production, and in particular to an intelligent conveying device for PET film coating. Background Art

[0002] PET coated film is an important film material. By coating the surface of PET film with specific glue or material, the surface properties of PET film can be improved or enhanced to meet specific application requirements. When producing PET coated film, the surface of PET film needs to be coated, which requires ensuring that the coating roller used for coating is stably attached to the surface of PET film. Once a large deviation occurs between PET film and coating roller during the production process, it will lead to incomplete coating, thus affecting the processing quality of PET coated film.

[0003] To this end, Chinese patent publication number CN218230745U discloses a feeding device for PET film production, which drives a pawl to rotate by moving a pull rope to one side. After the pawl rotates, it can pull the rack to move to the other side. The movement of the rack to the other side drives the sliding rod to move to the other side. When the adjustment is completed, the pawl can be released. The pawl is acted upon by the elastic force of a torsion spring, and then the pawl can be driven to rotate, thereby clamping the rack. This structure is beneficial for quickly adjusting the distance between the two second fixed plates, so that PET films of different sizes can be centered, so that the PET film can be clamped and fixed conveniently.

[0004] However, the existing device for positioning the PET film requires manual adjustment by the operator, the adjustment accuracy is poor, and the fixation of the fixed plate is not stable. After the adjustment is completed, once the fixed plate is subjected to external force, a large deviation may occur, thereby affecting the positioning accuracy. Summary of the invention

[0005] In view of the above problems, an intelligent conveying device for PET film coating is provided, which solves the problem that the traditional conveying device is prone to deviation and affects the positioning accuracy when positioning the PET film through positioning parts and auxiliary fixing mechanisms.

[0006] In order to solve the problems of the prior art, the present invention provides an intelligent conveying device for PET film coating, which is used for accurately conveying the PET film on a barrel. The conveying device includes a frame and a main shaft arranged on the frame. Two positioning members for positioning the barrel are movably arranged on the frame. The positioning members are provided with an auxiliary fixing mechanism for fixing the positioning members. The auxiliary fixing mechanism includes a fixing component for fixing the positioning member and a control component for controlling the opening and closing of the fixing component.

[0007] Preferably, a trigger assembly for driving the control assembly is provided on the positioning member; when the positioning member is tightly fitted with the barrel, the trigger assembly drives the control assembly, and the control assembly is driven to start the fixed assembly on the positioning member.

[0008] Preferably, a first linear drive assembly for driving the control assembly is provided on the positioning member, and when the positioning member is not in contact with the barrel and the first linear drive assembly is started, the first linear drive assembly drives the control assembly.

[0009] Preferably, the positioning member comprises a sliding seat and an abutment ring, the sliding seat is slidably mounted on the frame, and the abutment ring is movably arranged on the positioning member.

[0010] Preferably, the fixing assembly includes an abutment block and a guide rail, the abutment block is movably arranged on the positioning member, the control assembly is used to control the movement of the abutment block, the guide rail is installed on the frame, the positioning member and the guide rail are slidably matched, and the movement of the positioning member is restricted when the abutment block abuts the guide rail.

[0011] Preferably, the control component includes a first elastic member and a movable pin; the two ends of the first elastic member are respectively connected to the abutment block and the positioning member, the movable pin is slidably installed on the positioning member, and the abutment block is provided with an oblique through hole that is plugged into and cooperates with the movable pin. When the push rod moves downward, the oblique through hole on the abutment block is squeezed, thereby overcoming the elastic force of the first elastic member and driving the abutment block to move in a direction away from the inner wall of the guide rail until the abutment block is separated from the inner wall of the guide rail.

[0012] Preferably, the trigger assembly includes a push rod, an oblique extension block, a fixed plate and a second elastic member; the push rod is arranged on the abutment ring, and the push rod is slidably matched with the slide seat, the oblique extension block is arranged on the movable pin, the fixed plate is installed on the oblique extension block, the two ends of the second elastic member are respectively connected to the fixed plate and the slide seat, and a third elastic member is provided on the abutment ring, and the two ends of the third elastic member are respectively connected to the slide seat and the abutment ring.

[0013] Preferably, the first linear drive assembly includes a linear driver and a push plate; the linear driver is mounted on a slide, the push plate is transmission-connected to a driving end of the linear driver, and after the linear driver drives the push plate to move upward, the push plate restricts the fixing plate from moving downward.

[0014] Preferably, a fixing bar for abutting against the abutment block is provided on the guide rail.

[0015] Preferably, both ends of the main shaft are provided with a detachable fixing sleeve, and the fixing sleeve is threadedly connected to the main shaft.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention successfully realizes the flexible and accurate positioning function of the barrel by cleverly using the positioning piece and the auxiliary fixing mechanism. This not only ensures the stable transportation of the PET film, but also significantly improves the positioning accuracy, thereby effectively reducing the coating dead angle and improving the overall coating quality.

[0018] 2. The present invention realizes the function of automatically fixing the positioning member through the trigger component and the first linear drive component, thereby achieving the effect of quickly positioning the barrel.

[0019] 3. The present invention realizes the function of actively starting the fixing component through the first linear drive component, thereby achieving the effect of actively adjusting the position of the positioning member. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of an intelligent conveying device for PET film coating.

[0021] Figure 2 The present invention is a three-dimensional schematic diagram of a second linear drive assembly and a positioning member in an intelligent conveying device for PET film coating.

[0022] Figure 3 The present invention is a three-dimensional schematic diagram of a main shaft, a barrel and a coating device in an intelligent conveying device for PET film coating.

[0023] Figure 4 It is a three-dimensional schematic diagram of an auxiliary fixing mechanism in an intelligent conveying device for PET film coating.

[0024] Figure 5 The present invention is a three-dimensional exploded schematic diagram of a second linear drive component, a fixed component and a positioning component in an intelligent conveying device for PET film coating.

[0025] Figure 6 The present invention is a three-dimensional schematic diagram of fixed components and control components in an intelligent conveying device for PET film coating.

[0026] Figure 7 The present invention is a sectional stereoscopic schematic diagram of a fixed component and a control component in an intelligent conveying device for PET film coating.

[0027] Figure 8 It is a three-dimensional schematic diagram of an auxiliary control mechanism in an intelligent conveying device for PET film coating.

[0028] Fig. 9 The present invention is a three-dimensional exploded schematic diagram of a positioning member and an auxiliary control mechanism in an intelligent conveying device for PET film coating.

[0029] Fig.10 It is a three-dimensional schematic diagram of a positioning member and an auxiliary control mechanism in an intelligent conveying device for PET film coating.

[0030] The numbers in the figure are: 1, frame; 11, spindle; 111, fixed sleeve; 12, second linear drive assembly; 121, screw; 122, guide rod; 123, rotary drive; 124, limit block; 2, positioning member; 21, slide seat; 22, abutment ring; 3, auxiliary fixing mechanism; 31, fixing assembly; 311, abutment block; 312, guide rail; 3121, fixing bar; 32, control assembly; 321, first An elastic member; 322, a movable pin; 323, an oblique through hole; 33, a trigger assembly; 331, a push rod; 332, an oblique extension block; 333, a fixing plate; 334, a second elastic member; 335, a mounting frame; 336, a third elastic member; 34, a first linear drive assembly; 341, a linear drive; 342, a push plate; 4, a coating device; 41, a mounting shaft; 42, a cantilever; 43, a coating roller; 5, a barrel. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] Reference Figure 1-Figure 4 , an intelligent conveying device for PET film coating, used for accurately conveying the PET film on the barrel 5, the conveying device includes a frame 1 and a main shaft 11 arranged on the frame 1, two positioning members 2 for positioning the barrel 5 are movably arranged on the frame 1, and the positioning members 2 are provided with an auxiliary fixing mechanism 3 for fixing the positioning members 2. The auxiliary fixing mechanism 3 includes a fixing component 31 for fixing the positioning member 2 and a control component 32 for controlling the opening and closing of the fixing component 31.

[0033] The present invention successfully realizes the flexible and precise positioning function of the barrel 5 by cleverly using the positioning member 2 and the auxiliary fixing mechanism 3. This not only ensures the stable transportation of the PET film, but also significantly improves the positioning accuracy, thereby effectively reducing the coating dead angle and improving the overall coating quality. The frame 1 is also provided with a coating device 4 for coating the PET film, and the coating device 4 includes a mounting shaft 41, a cantilever 42 and a coating roller 43; the mounting shaft 41 is rotatably arranged on the frame 1, and two cantilevers 42 are provided, one end of the cantilever 42 is sleeved on the mounting shaft 41, and the other ends of the two cantilevers 42 are respectively rotatably connected to the two ends of the coating roller 43, and the main shaft 11 can be detachably rotatably installed on the frame 1; compared with the traditional conveying device, this design effectively solves the problem of offset that is easy to occur during the positioning process of the PET film, and significantly improves the accuracy and reliability of positioning. The fixing assembly 31 and the control assembly 32 are both arranged on the positioning member 2; the operator first removes the main shaft 11, sleeves the barrel 5 on the main shaft 11, and then installs the main shaft 11 again, and then moves the two positioning members 2 at the same time, so that the two positioning members 2 are close to the barrel 5 at the same time, until the two positioning members 2 are respectively in contact with the two ends of the barrel 5, and then starts the fixing assembly 31 through the control assembly 32, and the fixing assembly 31 fixes the positioning members 2 to complete the centering of the barrel 5. When it is necessary to fix the barrel 5 at a specified position, the operator first installs the barrel 5 on the main shaft 11, and then moves one of the positioning members 2, and after moving it to the specified position, fixes it through the fixing assembly 31, and then pushes the other positioning block, and during the pushing process, the positioning block contacts the barrel 5 and pushes the barrel 5 to move together, until the other end of the barrel 5 is in contact with the fixed positioning member 2, and then fixes the movable positioning block through the fixing assembly 31 to complete the precise positioning of the barrel 5. After the positioning member 2 abuts against the barrel 5 , the positioning member 2 and the barrel 5 are slidably matched, thereby fixing the barrel 5 without hindering the rotation of the barrel 5 . The positioning member 2 only provides a supporting force for the barrel 5 .

[0034] Reference Figure 3 and Figure 4 A trigger assembly 33 for driving a control assembly 32 is provided on the positioning member 2; when the positioning member 2 is tightly fitted with the barrel 5, the trigger assembly 33 drives the control assembly 32, and after the control assembly 32 is driven, the fixing assembly 31 on the positioning member 2 is started.

[0035] The present invention realizes the function of automatically fixing the positioning member 2 through the trigger component 33 and the first linear drive component 34, thereby achieving the effect of quickly positioning the barrel 5. The operator sleeves the barrel 5 onto the spindle 11, and then simultaneously moves the two positioning members 2, so that the two positioning members 2 simultaneously approach the barrel 5. When the positioning members 2 abut against the ends of the barrel 5, the trigger component 33 drives the control component 32, and then the control component 32 starts the fixing component 31 on the positioning member 2, and the fixing component 31 fixes the positioning member 2, thereby achieving the effect of automatically positioning the barrel 5.

[0036] Reference Figure 3 and Figure 5 A first linear drive component 34 for driving the control component 32 is provided on the positioning member 2. When the positioning member 2 is not in contact with the barrel 5 and the first linear drive component 34 is started, the first linear drive component 34 drives the control component 32.

[0037] The present invention realizes the function of actively starting the fixing component 31 through the first linear drive component 34, so as to achieve the effect of actively adjusting the position of the positioning member 2. First, the barrel 5 is sleeved on the main shaft 11, and then the first positioning member 2 is moved. After it is moved to the specified position, the control component 32 is driven by the first linear drive component 34, and then the fixing component 31 on the positioning member 2 is started by the control component 32, the positioning member 2 is fixed, and the positioning member 2 is used as a reference, and then the second positioning member 2 is moved. During the movement, the barrel 5 is pushed by the positioning member 2 until the barrel 5 abuts against the first positioning member 2. With the pushing action of the second positioning member 2, the second positioning member 2 abuts against the barrel 5, and the trigger component 33 on the second positioning member 2 is pushed by the action force between the two, and the trigger component 33 drives the control component 32 to start the fixing component 31 on the second positioning member 2, so as to achieve the effect of fixing the barrel 5 to the specified position.

[0038] Reference Figure 3 and Figure 4 The positioning member 2 includes a slide seat 21 and an abutment ring 22 . The slide seat 21 is slidably mounted on the frame 1 , and the abutment ring 22 is movably arranged on the positioning member 2 .

[0039] The present invention realizes the function of supporting the barrel 5 through the slide 21 and the abutment ring 22. The frame 1 is provided with a second linear drive assembly 12 for driving the slide 21 to move, and the second linear drive assembly 12 includes a screw 121, a guide rod 122, a rotary driver 123 and a stop block 124. The screw 121 is rotatably mounted on the frame 1, and the screw 121 is threadedly connected to the slide 21. The guide rod 122 is arranged on the frame 1, and the guide rod 122 is slidably matched with the slide 21. The driving end of the rotary driver 123 is transmission-connected to the screw 121. The stop block 124 is arranged on the frame 1 and is used to limit the moving range of the slide 21. The rotary driver 123 is preferably It is a servo motor, which is electrically connected to the controller. After the barrel 5 is installed on the main shaft 11, the controller sends a signal to the rotation driver 123. After receiving the signal, the rotation driver 123 drives the screw 121 to rotate. The screw 121 drives the slide 21 threadedly connected to it to move, and guides the slide 21 to move through the guide rod 122. The slide 21 drives the abutment ring 22 to move. When the abutment ring 22 contacts the barrel 5, the abutment ring 22 slides with the barrel 5, and then supports the barrel 5 through the abutment ring 22 to prevent the barrel 5 from shifting during the coating process.

[0040] Reference Figure 2 , Figure 3 and Figure 5 The fixing assembly 31 includes a contact block 311 and a guide rail 312. The contact block 311 is movably arranged on the positioning member 2. The control assembly 32 is used to control the movement of the contact block 311. The guide rail 312 is installed on the frame 1. The positioning member 2 is slidably matched with the guide rail 312. When the contact block 311 is in contact with the guide rail 312, the movement of the positioning member 2 is restricted.

[0041] The present invention realizes the function of fixing the positioning member 2 through the abutment block 311 and the guide rail 312. The abutment block 311 is slidably mounted on the slide 21. After the position of the slide 21 is adjusted by the second linear drive assembly 12, when the barrel 5 is tightly matched with the abutment ring 22 or the first linear drive assembly 34 drives the control assembly 32, the control assembly 32 drives the abutment block 311 to move toward the inner wall of the guide rail 312. When the abutment block 311 is tightly matched with the inner wall of the guide rail 312, the movement of the abutment block 311 is limited by the friction between the abutment block 311 and the guide rail 312, thereby fixing the slide 21. When the abutment rings 22 on the two slides 21 are tightly matched with the barrel 5, the support and position limiting of the barrel 5 are completed.

[0042] Reference Figure 4 , Figure 6 and Figure 7The control component 32 includes a first elastic member 321 and a movable pin 322; the two ends of the first elastic member 321 are respectively connected to the abutment block 311 and the positioning member 2, the movable pin 322 is slidably installed on the positioning member 2, and the abutment block 311 is provided with an oblique through hole 323 that is plugged with the movable pin 322. When the push rod 331 moves downward, the oblique through hole 323 on the abutment block 311 is squeezed, thereby overcoming the elastic force of the first elastic member 321 and driving the abutment block 311 to move away from the inner wall of the guide rail 312 until the abutment block 311 is separated from the inner wall of the guide rail 312.

[0043] The present invention realizes the function of controlling the movement of the abutment block 311 through the first elastic member 321 and the movable pin 322. The oblique through hole 323 has an oblique protrusion. When the positioning member 2 is moved, the movable pin 322 is plugged and matched with the oblique through hole 323. The movable pin 322 cooperates with the oblique protrusion in the oblique through hole 323 to limit the abutment block 311 from popping out under the elastic force of the first elastic member 321, thereby keeping the abutment block 311 separated from the guide rail 312, so that the slide seat 21 can move freely. When fixing, the operator drives the movable pin 322 upward through the trigger assembly 33 or the first linear drive assembly 34, so that the movable pin 322 is separated from the oblique protrusion in the oblique through hole 323, and no longer restricts the movement of the abutment block 311. The abutment block 311 pops out under the elastic force of the first elastic member 321, so that the abutment block 311 abuts and cooperates with the inner wall of the guide rail 312, thereby restricting the movement of the abutment block 311 and the slide seat 21.

[0044] Reference Figure 4 , Figure 8-Figure 10 The trigger assembly 33 includes a push rod 331, an oblique extension block 332, a fixing plate 333 and a second elastic member 334; the push rod 331 is arranged on the abutment ring 22, and the push rod 331 is slidably matched with the slide seat 21, the oblique extension block 332 is arranged on the movable pin 322, the fixing plate 333 is installed on the oblique extension block 332, the two ends of the second elastic member 334 are respectively connected to the fixing plate 333 and the slide seat 21, and a third elastic member 336 is provided on the abutment ring 22, and the two ends of the third elastic member 336 are respectively connected to the slide seat 21 and the abutment ring 22.

[0045] The present invention realizes the function of controlling the movement of the movable pin 322 through the push rod 331, the obliquely extending block 332, the fixing plate 333 and the second elastic member 334, so as to achieve the effect of automatically controlling the pop-up of the abutment block 311 when the abutment ring 22 and the barrel 5 are in close contact with each other. A mounting frame 335 is provided on the abutment ring 22, and the push rod 331 is installed on the mounting frame 335. The two ends of the third elastic member 336 are respectively connected to the mounting frame 335 and the slide seat 21; when the barrel 5 and the abutment ring 22 on the slide seat 21 are in close contact with each other, the abutment ring 22 is squeezed by the barrel 5, and the elastic force of the third elastic member 336 is overcome to press the abutment ring 22 into the slide seat 21, and the abutment ring 22 drives the push rod 331 to move, and the push rod 331 and the obliquely extending After the rod contacts, it squeezes the oblique extension rod, thereby overcoming the elastic force of the second elastic member 334 to drive the oblique extension block 332 and the movable pin 322 to move upward, so that the movable pin 322 is separated from the oblique protrusion in the oblique through hole 323, and no longer restricts the movement of the abutment block 311. The abutment block 311 pops out under the elastic force of the first elastic member 321, so that the abutment block 311 abuts and cooperates with the inner wall of the guide rail 312, thereby restricting the movement of the abutment block 311 and the slide seat 21.

[0046] Reference Figure 4 and Figure 8 The first linear drive assembly 34 includes a linear driver 341 and a push plate 342; the linear driver 341 is installed on the slide 21, and the push plate 342 is transmission-connected with the driving end of the linear driver 341. After the linear driver 341 drives the push plate 342 to move upward, the push plate 342 restricts the fixing plate 333 from moving downward.

[0047] The present invention realizes the function of actively driving the movable pin 322 to move upward through the linear driver 341 and the push plate 342. The linear driver 341 is preferably a linear cylinder or an electric push rod 331, and the linear driver 341 is electrically connected to the controller; when the operator actively fixes the positioning member 2, the controller sends a signal to the linear driver 341, and the linear driver 341 drives the push plate 342 to move upward after receiving the signal, and the push plate 342 contacts the fixed plate 333 and pushes the fixed plate 333, thereby driving the fixed plate 333, the oblique extension block 332 and the movable pin 322 to move upward, thereby releasing the movement restriction of the abutment block 311, and the abutment block 311 pops out under the elastic force of the first elastic member 321, thereby restricting the movement of the slide seat 21, and completing the support and restriction of the barrel 5.

[0048] Reference Figure 5 The guide rail 312 is provided with a fixing bar 3121 for abutting against the abutting block 311 .

[0049] The present invention realizes the function of increasing the friction force on the abutment block 311 through the fixing strip 3121. The fixing strip 3121 is provided with anti-skid patterns, and after the abutment block 311 abuts against the fixing strip 3121, the friction force on the abutment block 311 is increased, thereby improving the stability of fixing the positioning member 2.

[0050] Reference Figure 1 and Figure 2 Both ends of the main shaft 11 are provided with a detachable fixing sleeve 111 , and the fixing sleeve 111 is threadedly connected to the main shaft 11 .

[0051] The present invention realizes the function of limiting the sliding of the main shaft 11 through the fixed sleeve 111, thereby achieving the effect of installing the main shaft 11. When disassembling the main shaft 11, the operator first rotates one of the fixed sleeves 111 to remove the fixed sleeve 111 from the main shaft 11, and then slides the main shaft 11 so that one end of the main shaft 11 is separated from the frame 1 and one of the positioning members 2, and then puts the barrel 5 on the main shaft 11, and then reinstalls the main shaft 11, and reinstalls the removed fixed sleeve 111. After installation, the fixed sleeve 111 is slidably matched with the frame 1, and the side of the fixed sleeve 111 close to the frame 1 is relatively smooth, thereby reducing the friction between the fixed sleeve 111 and the frame 1. The Shudie fixed sleeve 111 only limits the movement of the main shaft 11 without affecting the rotation of the main shaft 11.

[0052] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An intelligent conveying device for PET film coating, used for accurately conveying the PET film on a barrel (5), the conveying device comprising a frame (1) and a main shaft (11) arranged on the frame (1), characterized in that: Two positioning members (2) for positioning the barrel (5) are movably provided on the frame (1); an auxiliary fixing mechanism (3) for fixing the positioning member (2) is provided on the positioning member (2); the auxiliary fixing mechanism (3) includes a fixing component (31) for fixing the positioning member (2) and a control component (32) for controlling the opening and closing of the fixing component (31); The positioning member (2) is provided with a trigger assembly (33) for driving the control assembly (32); when the positioning member (2) and the barrel (5) are tightly fitted, the trigger assembly (33) drives the control assembly (32), and the control assembly (32) is driven to start the fixing assembly (31) on the positioning member (2); The positioning member (2) includes a slide (21) and an abutment ring (22), the slide (21) is slidably mounted on the frame (1), and the abutment ring (22) is movably disposed on the positioning member (2); The fixing assembly (31) comprises an abutment block (311) and a guide rail (312); the abutment block (311) is movably arranged on the positioning member (2); the control assembly (32) is used to control the movement of the abutment block (311); the guide rail (312) is installed on the frame (1); the positioning member (2) and the guide rail (312) are slidably matched; when the abutment block (311) and the guide rail (312) are in abutment, the movement of the positioning member (2) is restricted; The control component (32) comprises a first elastic member (321) and a movable pin (322); two ends of the first elastic member (321) are respectively connected to the abutment block (311) and the positioning member (2); the movable pin (322) is slidably mounted on the positioning member (2); an oblique through hole (323) is provided on the abutment block (311) for plugging and cooperating with the movable pin (322); when the movable pin (322) moves downward, it presses the oblique through hole (323) on the abutment block (311), thereby overcoming the elastic force of the first elastic member (321) and driving the abutment block (311) to move in a direction away from the inner wall of the guide rail (312), until the abutment block (311) is separated from the inner wall of the guide rail (312); A first linear drive component (34) for driving the control component (32) is provided on the positioning member (2); when the positioning member (2) is not in contact with the barrel (5) and the first linear drive component (34) is started, the first linear drive component (34) drives the control component (32); The trigger assembly (33) comprises a push rod (331), an oblique extension block (332), a fixing plate (333) and a second elastic member (334); the push rod (331) is arranged on the abutment ring (22), and the push rod (331) is slidably matched with the slide seat (21); the oblique extension block (332) is arranged on the movable pin (322); the fixing plate (333) is mounted on the oblique extension block (332); two ends of the second elastic member (334) are respectively connected to the fixing plate (333) and the slide seat (21); a third elastic member (336) is provided on the abutment ring (22); two ends of the third elastic member (336) are respectively connected to the slide seat (21) and the abutment ring (22); The first linear drive assembly (34) comprises a linear drive (341) and a push plate (342); the linear drive (341) is mounted on the slide seat (21), the push plate (342) is drivingly connected to a driving end of the linear drive (341), and after the linear drive (341) drives the push plate (342) to move upward, the push plate (342) restricts the fixing plate (333) from moving downward.

2. The intelligent conveying device for PET film coating according to claim 1, characterized in that: The guide rail (312) is provided with a fixing bar (3121) for abutting against the abutment block (311).

3. The intelligent conveying device for PET film coating according to claim 1, characterized in that: Both ends of the main shaft (11) are provided with detachable fixing sleeves (111), and the fixing sleeves (111) are threadedly connected to the main shaft (11).

Images