CN107639820A - A kind of prepressing type PET film two-way stretch device - Google Patents

Abstract

The invention discloses a kind of prepressing type PET film two-way stretch device, including frame, sleeve pipe, preheating table, heater box, heating tube, rotating air suction head, central tube, adjusting nut, baffle plate, first bevel gear, servomotor, second bevel gear, heat conductive rod, door frame, first cylinder, top board, first guide rod, first spring, lower platen, drawing mechanism, electromagnet, which obtains, electric to be compressed PET film with support base adhesive, second cylinder pulls sliding block edge to be moved away from preheating table direction by PET film cross directional stretch, electromagnet dead electricity, spring band motor magnet resets, cylinder promotes sliding block backhaul, servomotor drives rotating air suction head to rotate PET film, PET film longitudinal stretching is completed in drawing mechanism action.The apparatus structure is simple, can carry out two-way Automatic-drawing to PET film, PET film comprehensive mechanical property is greatly improved, precompressed is carried out to PET film using precompressed mode simultaneously, effectively prevents PET film from tilting deformation, improves drawing effect, automatically PET film is rotated, improves operating efficiency.

Description

A pre-pressed PET film bidirectional stretching device

technical field

The invention relates to a mechanical device, in particular to a pre-pressed PET film bidirectional stretching device.

Background technique

PET film is also known as high temperature resistant polyester film. It has excellent physical properties, chemical properties and dimensional stability, transparency, and recyclability, and can be widely used in magnetic recording, photosensitive materials, electronics, electrical insulation, industrial films, packaging decoration, screen protection, optical mirrors Surface protection and other fields. In the new energy power battery industry, it is necessary to use PET film for electrical insulation protection, while traditional PET films are usually pulled out directly by traction rollers for longitudinal stretching. It is prone to creases and other problems that affect the insulation performance during use. In view of the above defects, it is necessary to design a pre-pressed PET film biaxial stretching device.

Contents of the invention

The object of the present invention is to provide a pre-pressed PET film biaxial stretching device, which can pre-press the PET film first, then stretch it transversely, and finally rotate the PET film automatically Longitudinal stretching can effectively improve the comprehensive mechanical properties of PET film.

In order to solve the above technical problems, the technical solution of the present invention is: a pre-pressed PET film biaxial stretching device, including a frame, a sleeve, a preheating plate, a heating box, a heating tube, a rotary suction head, a central tube, Adjusting nut, baffle plate, first bevel gear, servo motor, second bevel gear, heat conduction rod, door frame, first cylinder, upper pressing plate, first guide rod, first spring, lower pressing plate, stretching mechanism, the The casing is located at the center of the upper end of the frame, the casing is threadedly connected with the frame, the preheating plate is located at the upper end of the casing, the preheating plate is threadedly connected with the casing, and the heating box is located at The lower end of the preheating plate, the heating box is threadedly connected with the preheating plate, one end of the heating pipe extends into the heating box, the heating tube is threadedly connected with the heating box, and the rotating suction head is located on the preheating plate The upper end, the upper end surface of the rotary suction head is flush with the upper end surface of the preheating plate, the central tube runs through the preheating plate and is located at the lower end of the rotary suction head, the central tube is threadedly connected with the preheating plate and It is threadedly connected with the rotary suction head, the adjusting nut is located outside the center pipe, the adjusting nut is threadedly connected with the center pipe, the baffle is located outside the center pipe and at the upper end of the adjusting nut, and the first cone The gears are located outside the central tube, the first bevel gear is closely connected with the central tube, the servo motor is located at the upper end of the frame, the servo motor is threaded with the frame, and the second bevel gear is located at the servo The left side of the motor is located on the right side of the first bevel gear, the second bevel gear is closely connected with the servo motor and meshed with the first bevel gear, the heat conduction rod is located outside the preheating plate, and the heat conduction rod It is closely connected with the preheating plate, the door frame is located at the upper end of the frame, the door frame is connected with the frame thread, the first cylinder is located at the upper end of the door frame, and the first air cylinder is threaded with the door frame connected, the first guide rod is located through the upper platen, the first guide rod is slidably connected with the upper platen, the first spring is located at the lower end of the upper platen, and the first spring is connected with the upper platen by welding, The lower pressing plate is located at the lower end of the first spring and at the lower end of the first guide rod, the lower pressing plate is threadedly connected with the first spring and with the first guide rod, and the stretching mechanism is located at the upper end of the frame. The stretching mechanism described above is slidably connected with the frame.

Further improvement of the present invention is as follows:

Further, the rotary suction head is also provided with a main suction groove, the main suction groove is located at the upper end of the rotary suction head, and the main suction groove does not penetrate through the rotary suction head.

Further, the rotary suction head is also provided with branch suction grooves, and the branch suction grooves communicate with the cavity of the main suction groove.

Further, the central pipe is also provided with a suction hose, the suction hose is located at the lower end of the central pipe, and the suction hose is threadedly connected with the central pipe.

Further, the pressure plate is also provided with a silicon rubber pad, the silicon rubber pad is located on the top of the pressure plate, and the silicon rubber pad is threadedly connected with the pressure plate.

Further, the upper platen is also provided with a second guide rod, the second guide rod runs through the door frame and is located at the upper end of the upper platen, the second guide rod is slidably connected with the door frame and connected with the upper platen by threads .

Further, the stretching mechanism also includes a support base, a slider, a bracket, a third guide rod, a second spring, a pallet, an electromagnet, a second cylinder, and a limit rod. The upper end of the frame, the support base is slidingly connected with the frame, the bracket is located at the upper end of the support base, the bracket is threadedly connected with the support base, the third guide rod runs through the bracket, and the first The three guide rods are slidingly connected with the bracket, the second spring is located outside the third guide rod and at the upper end of the bracket, the second spring is connected with the bracket by welding, and the supporting plate is located at the lower end of the third guide rod , the supporting plate is threadedly connected with the third guide rod, the electromagnet is located at the lower end of the supporting plate, the electromagnet is threadedly connected with the supporting plate, and the second cylinder is located outside the slider and at the upper end of the supporting seat , the second air cylinder is threadedly connected with the slide block and with the support seat, the limit rod is located at the lower end of the support plate, and the limit rod is threadedly connected with the support plate.

Further, the slider is also provided with a limit hole, the limit hole is located at the upper end of the slider, and the limit hole does not penetrate the slider.

Further, the slider is also provided with a jack, the jack is located on the side of the slider, and the jack does not penetrate the slider.

Compared with the prior art, the pre-pressed PET film biaxial stretching device, when working, puts the PET film on the preheating plate, and draws the inside of the central tube into a negative pressure through the suction hose, so that the device installed in the rotary suction The main suction groove and branch suction groove on the air head are pumped into negative pressure, and then the PET film is sucked tightly. Then, the first cylinder moves down, and the lower pressing plate presses the highly elastic PET film under the elastic force of the first spring. Flat, the heating tube works to heat the placing table. Since the material of the lower pressing plate is copper, it has good thermal conductivity. After heating, the heat conduction rod transfers heat to the slider, thereby softening the PET film. Then, the electromagnet is energized and attracted to the support seat, and the limit rod moves down and extends into the limit hole, thereby pressing the PET film tightly. , the second cylinder pulls the slider to move away from the preheating plate, thereby stretching the PET film laterally, then the electromagnet is de-energized, the spring drives the electromagnet to reset, the cylinder pushes the slider back, and then the servo motor passes through the second bevel gear Drive the first bevel gear to rotate, thereby driving the rotating suction head fixedly connected with the central tube to rotate, thereby rotating the PET film, and repeating the above steps to complete the longitudinal stretching of the PET film. The device has a simple structure and can automatically stretch the PET film in both directions, greatly improving the comprehensive mechanical properties of the PET film. Automatically rotate the PET film to improve work efficiency.

Description of drawings

Fig. 1 shows the front view of the present invention

Fig. 2 shows the top view of the rotary suction head of the present invention

Fig. 3 shows the schematic diagram of the structure of the stretching mechanism of the present invention

In the figure: Frame 1, bushing 2, preheating plate 3, heating box 4, heating pipe 5, rotating suction head 6, center pipe 7, adjusting nut 8, baffle plate 9, first bevel gear 10, servo motor 11. Second bevel gear 12, heat conducting rod 13, door frame 14, first cylinder 15, upper platen 16, first guide rod 17, first spring 18, lower platen 19, stretching mechanism 20, main suction groove 601 , suction groove 602, suction hose 701, silicone rubber pad 901, second guide rod 1601, support seat 2001, slider 2002, bracket 2003, third guide rod 2004, second spring 2005, pallet 2006 , Electromagnet 2007, second cylinder 2008, limit rod 2009, limit hole 2010, jack 2011.

detailed description

As shown in Figure 1, Figure 2, and Figure 3, a pre-pressed PET film biaxial stretching device includes a frame 1, a sleeve 2, a preheating plate 3, a heating box 4, a heating tube 5, and a rotating suction head 6. Central tube 7, adjusting nut 8, baffle plate 9, first bevel gear 10, servo motor 11, second bevel gear 12, heat conduction rod 13, door frame 14, first cylinder 15, upper pressure plate 16, first guide Rod 17, first spring 18, lower pressing plate 19, stretching mechanism 20, described sleeve pipe 2 is positioned at the upper center of frame 1, described sleeve pipe 2 is threadedly connected with frame 1, and described preheating plate 3 is located at the upper end of the casing 2, the preheating plate 3 is threadedly connected with the casing 2, the heating box 4 is located at the lower end of the preheating plate 3, the heating box 4 is threadedly connected with the preheating plate 3, the One end of the heating tube 5 stretches into the heating box 4, the heating tube 5 is threadedly connected with the heating box 4, the rotating suction head 6 is located at the upper end of the preheating plate 3, and the upper end surface of the rotating suction head 6 is in contact with the heating box 4. The upper end surface of the preheating plate 3 is flush, the central tube 7 runs through the preheating plate 3 and is located at the lower end of the rotary suction head 6, the central tube 7 is threadedly connected with the preheating plate 3 and connected with the rotary suction head 6 Threaded connection, the adjustment nut 8 is located outside the center tube 7, the adjustment nut 8 is threaded with the center tube 7, the baffle plate 9 is located outside the center tube 7 and at the upper end of the adjustment nut 8, the first A bevel gear 10 is located outside the central tube 7, the first bevel gear 10 is closely connected to the central tube 7, the servo motor 11 is located at the upper end of the frame 1, and the servo motor 11 is threadedly connected with the frame 1 , the second bevel gear 12 is located on the left side of the servo motor 11 and on the right side of the first bevel gear 10, the second bevel gear 12 is tightly connected to the servo motor 11 and meshed with the first bevel gear 10, The heat conduction rod 13 is located on the outside of the preheating plate 3, the heat conduction rod 13 is closely connected with the preheating plate 3, the door frame 14 is located at the upper end of the frame 1, and the door frame 14 is connected to the frame 1 Threaded connection, the first cylinder 15 is located at the upper end of the door frame 14, the first cylinder 15 is threaded with the door frame 14, the first guide rod 17 is located through the upper platen 16, the first guide The rod 17 is slidably connected with the upper pressing plate 16, the first spring 18 is located at the lower end of the upper pressing plate 16, the first spring 18 is welded with the upper pressing plate 16, and the lower pressing plate 19 is located at the lower end of the first spring 18 and is located at The lower end of the first guide rod 17, the lower pressing plate 19 is threadedly connected with the first spring 18 and is threadedly connected with the first guide rod 17, the stretching mechanism 20 is located at the upper end of the frame 1, and the stretching mechanism 20 Slidingly connected with the frame 1, the rotating suction head 6 is also provided with a main suction groove 601, the main suction groove 601 is located at the upper end of the rotating suction head 6, and the main suction groove 601 does not penetrate Rotary suction head 6, described rotary suction head 6 is also provided with branch suction groove 602, and described branch suction groove 602 communicates with main suction groove 601 cavity, and described center pipe 7 is also provided with suction Air hose 701, the suction hose 701 is located at the lower end of the central tube 7, the suction soft The pipe 701 is threadedly connected with the central pipe 7, and the pressure plate is also provided with a silicone rubber pad 901, the silicon rubber pad 901 is located at the top of the pressure plate, the silicon rubber pad 901 is threaded with the pressure plate, and the upper pressure plate 16 A second guide rod 1601 is also provided. The second guide rod 1601 runs through the door frame 14 and is located at the upper end of the upper platen 16. The second guide rod 1601 is slidably connected with the door frame 14 and threaded with the upper platen 16. The stretching mechanism 20 also includes a support base 2001, a slider 2002, a bracket 2003, a third guide rod 2004, a second spring 2005, a pallet 2006, an electromagnet 2007, a second cylinder 2008, and a limit rod 2009, The support base 2001 is located at the upper end of the frame, the support base 2001 is slidably connected with the frame, the bracket 2003 is located at the upper end of the support base 2001, the bracket 2003 is threadedly connected with the support base 2001, the The third guide rod 2004 runs through the bracket 2003, the third guide rod 2004 is slidably connected with the bracket 2003, the second spring 2005 is located outside the third guide rod 2004 and at the upper end of the bracket 2003, the described The second spring 2005 is welded to the bracket 2003, the supporting plate 2006 is located at the lower end of the third guide rod 2004, the supporting plate 2006 is screwed to the third guiding rod 2004, and the electromagnet 2007 is located on the supporting plate 2006 At the lower end, the electromagnet 2007 is threadedly connected with the supporting plate 2006, and the second cylinder 2008 is located outside the slider 2002 and at the upper end of the support seat 2001, and the second cylinder 2008 is threadedly connected with the slider 2002 and is connected with the support The seat 2001 is threadedly connected, and the limiting rod 2009 is located at the lower end of the supporting plate 2006. The limiting rod 2009 is threadedly connected with the supporting plate 2006. The slider 2002 is also provided with a limiting hole 2010. The limiting The hole 2010 is located at the upper end of the slider 2002, the limiting hole 2010 does not pass through the slider 2002, and the slider 2002 is also provided with a socket 2011, and the socket 2011 is located on the side of the slider 2002, and the socket The hole 2011 does not go through the slider 2002,

The pre-pressed PET film biaxial stretching device, when working, puts the PET film on the preheating plate 3, and pumps the inside of the central tube 7 into a negative pressure through the suction hose 701, so as to set it on the rotary suction head 6 The upper main suction groove 601 and the branch suction groove 602 are pumped into negative pressure, and then the PET film is sucked tightly. Then, the first cylinder 15 moves down, and the lower pressure plate 11 under the elastic force of the first spring 10 pushes the high elastic The PET film in the state is flattened, and the heating tube 4 works to heat the placing table 2. Since the material of the lower pressing plate 11 is red copper, it has good thermal conductivity. While keeping warm, the heating tube 5 heats the preheating plate 3, and the heat conduction rod 13 transfers the heat to the slider 2002, thereby softening the PET film. Then, the electromagnet 2007 is energized and attracted to the support seat 2001, and the limit rod 2009 Move down and extend into the limit hole 2010, thereby compressing the PET film, and then the second cylinder 2008 pulls the slider 2002 to move in the direction away from the preheating plate 3, thereby stretching the PET film laterally, and then the electromagnet 2006 loses Electricity, the spring 2004 drives the electromagnet 2006 to reset, the cylinder 2008 pushes the slider 2002 back, and then the servo motor 11 drives the first bevel gear 10 to rotate through the second bevel gear 12, thereby driving the rotary suction head 6 fixedly connected with the central tube 7 Rotate, so that the PET film is rotated, repeat the above steps, and the longitudinal stretching of the PET film can be completed. The device has a simple structure and can automatically stretch the PET film in both directions, greatly improving the comprehensive mechanical properties of the PET film. Automatically rotate the PET film to improve work efficiency.

The present invention is not limited to the above-mentioned specific implementation manners, and various transformations made by those skilled in the art starting from the above-mentioned ideas without creative work all fall within the scope of protection of the present invention.

Claims (9)

1. a kind of prepressing type PET film two-way stretch device, it is characterised in that including frame, sleeve pipe, preheating table, heater box, heating Pipe, rotating air suction head, central tube, adjusting nut, baffle plate, first bevel gear, servomotor, second bevel gear, heat conductive rod, door Frame, the first cylinder, top board, the first guide rod, the first spring, lower platen, drawing mechanism, described sleeve pipe are located in frame upper end At the heart, described sleeve pipe is connected with frame screw thread, and described preheating table is located at sleeve upper end, described preheating table and casing threads It is connected, described heater box is located at preheating table lower end, and described heater box is connected with preheating table screw thread, described heating tube one end Heater box is stretched into, described heating tube is connected with heater box screw thread, and described rotating air suction head is located at preheating table upper end, the rotation Turn that the upper surface of suction head is concordant with the upper surface of preheating table, described central tube is through preheating table and under rotating air suction head End, described central tube are connected with preheating table screw thread and are connected with rotating air suction head thread, and described adjusting nut is located at center On the outside of pipe, described adjusting nut is connected with center pipe screw thread, and described baffle plate is located on the outside of central tube and is located at adjusting nut Upper end, described first bevel gear are located on the outside of central tube, and described first bevel gear is connected with central tube close-fitting, and described watches Take motor and be located at frame upper end, described servomotor is connected with frame screw thread, and described second bevel gear is located at servomotor Left side and on the right side of the first bevel gear, described second bevel gear is connected with servomotor close-fitting and is engaged with first bevel gear It is connected, described heat conductive rod is located on the outside of preheating table, and described heat conductive rod is connected with preheating table close-fitting, and described door frame is located at machine Frame upper end, described door frame are connected with frame screw thread, and the first described cylinder is located at door frame upper end, the first described cylinder and door Frame screw thread is connected, and positioned at top board is run through, the first described guide rod slides with top board to be connected the first described guide rod, described First spring is located at top board lower end, and the first described spring is weldingly connected with top board, and described lower platen is located at the first bullet Spring lower end and it is located at the first lower end of the guide rod, described lower platen is connected with the first spring thread and is connected with the first guide rod screw thread, Described drawing mechanism is located at frame upper end, and described drawing mechanism is connected with housing slide.

2. prepressing type PET film two-way stretch device as claimed in claim 1, it is characterised in that described rotating air suction head is also set There is main air-breathing groove, described main air-breathing groove is located at rotating air suction head upper end, and described main air-breathing groove is not through rotating air suction head.

3. prepressing type PET film two-way stretch device as claimed in claim 2, it is characterised in that described rotating air suction head is also set There are branch air-breathing groove, the branch air-breathing groove and main air-breathing slot cavity body intercommunication.

4. prepressing type PET film two-way stretch device as claimed in claim 2, it is characterised in that described central tube is additionally provided with suction Gas flexible pipe, described inhaling hose are located at central tube lower end, and described inhaling hose is connected with center pipe screw thread.

5. prepressing type PET film two-way stretch device as claimed in claim 1, it is characterised in that described pressing plate is additionally provided with silicon rubber Rubber cushion, described silicone rubber pad are located at pressing plate upper end, and described silicone rubber pad is connected with pressing plate screw thread.

6. prepressing type PET film two-way stretch device as claimed in claim 1, it is characterised in that described top board is additionally provided with Two guide rods, the second described guide rod is through door frame and be located at top board upper end, the second described guide rod be connected with door frame slip and It is connected with top board screw thread.

7. prepressing type PET film two-way stretch device as claimed in claim 1, it is characterised in that described drawing mechanism also includes Support base, sliding block, bracket, the 3rd guide rod, second spring, supporting plate, electromagnet, the second cylinder, gag lever post, described support seat In frame upper end, described support base is connected with housing slide, and described bracket is located at support base upper end, described bracket and branch Support seat screw thread is connected, and the 3rd described guide rod runs through bracket, and the 3rd described guide rod slides with bracket to be connected, the second described bullet Spring is located on the outside of the 3rd guide rod and is located at bracket upper end, and described second spring is weldingly connected with bracket, and described supporting plate is located at 3rd lower end of the guide rod, described supporting plate are connected with the 3rd guide rod screw thread, and described electromagnet is located at supporting plate lower end, described electromagnetism Iron is connected with supporting plate screw thread, and the second described cylinder is located on the outside of sliding block and be located at support base upper end, the second described cylinder and Sliding block screw thread is connected and is connected with support base screw thread, and described gag lever post is located at supporting plate lower end, described gag lever post and supporting plate spiral shell Line is connected.

8. prepressing type PET film two-way stretch device as claimed in claim 7, it is characterised in that described sliding block is additionally provided with spacing Hole, described spacing hole are located at upper end of slide block, and described spacing hole is not through sliding block.

9. prepressing type PET film two-way stretch device as claimed in claim 7, it is characterised in that described sliding block is additionally provided with slotting Hole, described jack are located at sliding block side, and described jack is not through sliding block.