A kind of ptfe copper-clad plate base film cutting equipment superposition mechanism

Abstract

The utility model relates to ptfe copper -clad plate base film cutting equipment discloses a kind of superposition mechanism of ptfe copper -clad plate base film cutting equipment, comprising: mounting bracket, first installation part, cylinder, second installation part, a group of first spring, four groups of electromagnetic induction heating unit.Cylinder in the process of descending: first, second installation part presses down base film, and the base film is pressed flat, while coil energization;Then, first installation part overcomes first spring and continues to move down, i. e. first installation part is close to second installation part, heated body enters energized coil, and electromagnetic induction heating is carried out;Finally, heated body contacts the uppermost base film, and the uppermost base film and the base film below are heated and fused.Cylinder rises and resets, after the next cut base film is stacked, repeat operation.It has beneficial effects: cooperate to cutting equipment, heat and fuse the uppermost base film and the base film below when base film is stacked each time, inhibit the four-corner position of base film to appear rolling in stacking process.

Description

Technical Field

[0001] This utility model relates to a PTFE copper clad laminate base film cutting equipment, and particularly to a stacking mechanism for a PTFE copper clad laminate base film cutting equipment. Background Technology

[0002] Please see Figure 1 A typical PTFE copper-clad laminate base film cutting device includes: an unwinding mechanism, a placement table, a traction mechanism, two sets of first pneumatic fingers, and a cutting mechanism. The unwinding mechanism is used to unwind the PTFE copper-clad laminate base film. The two sets of first pneumatic fingers are distributed on both sides of the cutting mechanism; the first pneumatic finger closer to the unwinding mechanism is movable and used to feed the starting side of the base film through the cutting mechanism. The traction mechanism may include: a set of second pneumatic fingers and a linear module (…). Figure 1 (For simplicity, the linear module is not shown.) It is used to clamp the starting side of the base film and pull the base film out to a suitable length. The cutting mechanism is used to cut the base film between the two sets of first pneumatic fingers.

[0003] After the base film is cut, the first pneumatic finger on the side closer to the unwinding mechanism holds and fixes the base film, while the first pneumatic finger on the side closer to the traction mechanism releases, and one side of the cut base film falls onto the placement table. The traction mechanism continues to move a distance, pulling the cut base film a certain distance before releasing it, and the cut base film falls onto the placement table. This process is repeated multiple times, and multiple cut base films are stacked on the placement table.

[0004] The existing problems include: internal stress of the base film and deformation caused by cutting, which cause the four corners of the cut base film to curl up, affecting the stacking of the base film.

[0005] The applicant discovered that the curling at the four corners of the base film was irregular, meaning that the curling pattern varied among different base films. Based on this, by heating and fusing the top and bottom base films during each stacking process, the curling at the four corners of the base film could be suppressed. Utility Model Content

[0006] This application provides a stacking mechanism for a PTFE copper clad laminate base film cutting device. When the base films are stacked, the top and bottom base films are heated and fused together, which can solve the problem of the base film curling at the four corners.

[0007] This application provides a stacking mechanism for a PTFE copper clad laminate base film cutting device, comprising: Mounting rack; The first mounting part is slidably connected to the mounting bracket. A cylinder is located between the first mounting part and the mounting bracket, and is used to drive the first mounting part to rise and fall. The second mounting part is slidably connected to the first mounting part and is located below the first mounting part; A set of first springs is disposed between the first mounting part and the second mounting part to keep the second mounting part in a position away from the first mounting part; Four sets of electromagnetic induction heating units, with induction coil modules connected to the four corners of the second mounting part, and the heated body connected to the four corners of the first mounting part; when the second mounting part is located away from the first mounting part, the heated body is outside the induction coil module.

[0008] In some embodiments, the first mounting part is horizontally slidably connected to four first sliding parts; the second mounting part is horizontally slidably connected to four second sliding parts; the bottom surfaces of the four second sliding parts are flush and also extend beyond the bottom surface of the second mounting part; the corresponding first sliding parts and second sliding parts form a mounting group for mounting the electromagnetic induction heating unit; a slotted pin pair is provided between the mounting group and the first mounting part or between the mounting group and the second mounting part, the slotted pin pair being used to: convert the movement of the first mounting part toward the second mounting part into the outward movement of the mounting group.

[0009] In some embodiments, the guide groove of the slotted pin pair includes an inclined section and a vertical section; during the movement of the first mounting part toward the second mounting part, the pin of the slotted pin pair passes through the guide groove in the order of the inclined section and the vertical section.

[0010] In some embodiments, a scissor bracket is provided between the first mounting part and the second mounting part.

[0011] In some embodiments, the connection between the coil and the second mounting portion, and the connection between the heated body and the first mounting portion, are fixed connections.

[0012] In some embodiments, a connecting member is provided between the coil of the induction coil mold and the second mounting part. The connecting member includes: a sleeve with a stepped outer wall, a retaining ring detachably connected to the lower part of the sleeve, and a top cover detachably connected to the top of the sleeve.

[0013] In some embodiments, the cylinder body is hinged to the mounting bracket, and the piston rod is hinged to a second slider; the second slider is horizontally slidably connected to the first mounting part, and a set of second springs is also provided between the second slider and the first mounting part.

[0014] In summary, this application discloses a stacking mechanism for a PTFE copper clad laminate base film cutting device, comprising: a mounting frame, a first mounting part, a cylinder, a second mounting part, a set of first springs, and four sets of electromagnetic induction heating units. During the cylinder's descent: firstly, the second mounting part presses down on the base film, flattening it, while the coil is energized; then, the first mounting part continues to descend against the first spring, approaching the second mounting part, and the heated element enters the energized coil for electromagnetic induction heating; finally, the heated element contacts the topmost base film, heating and fusing the top and bottom base films together. The cylinder rises and resets, and the operation is repeated after the next batch of cut base films is stacked. The beneficial effects are: when used with a cutting device, heating and fusing the top and bottom base films during each stacking process prevents the base film from curling up at the four corners during stacking. Attached Figure Description

[0015] To better illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0016] Figure 1 A simplified top view of the cutting equipment; Figure 2 A front view of an embodiment where both the coil induction module and the heated object are fixed. Figure 3 for Figure 2 A sectional view along the middle AA; Figure 4 A side view of an embodiment where both the coil induction module and the heated object are fixed. Figure 5 This is a schematic diagram of the induction coil module and its mounting components; Figure 6 A front view of an embodiment where both the coil induction module and the heated body are in a sliding configuration; Figure 7 for Figure 6 A sectional view along the middle edge BB; Figure 8 A side view of an embodiment where both the coil induction module and the heated body are in a sliding configuration; Figure 9 This is a schematic diagram of another arrangement of the cylinder, mounting bracket, and first mounting part.

[0017] In the picture, 1. Mounting bracket; 1a. T-block; 2. First mounting part; 2a. First guide post; 2b. First sliding part; 2b1. Fourth guide post; 2c. Fifth guide post; 3. Cylinder; 3a. Second slider; 3b. Second spring; 4. Second mounting part; 4a. Second guide post; 4a1. Stop block; 4b. Second sliding part; 4b1. Third guide post; 4c. Vertical plate; 4d. Slide groove; 5. First spring; 6. Electromagnetic induction heating unit; 61. Coil induction module; 611. Coil; 611a. Connecting section; 612. High-frequency power supply; 62. Heated body; 6b. Mounting assembly; 7. Groove pin pair; 71. Guide groove; 711. Inclined section; 712. Vertical section; 72. Column pin; 8. Scissors holder; 8a. First slider; 9. Connecting component; 91. Sleeve; 91a. Groove; 92. Retaining ring; 93. Top cover; 101. Unwinding mechanism; 102. Placement table; 102a. Strip groove; 103. Traction mechanism; 104. First pneumatic finger; 105. Cutting mechanism. Detailed Implementation

[0018] The following description is provided in conjunction with the accompanying drawings, which are for illustrative purposes only and not strictly to scale. Unless otherwise defined, the technical or scientific terms used in this disclosure should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes. Unless otherwise specified, the embodiments in this application can be combined with each other.

[0019] Please see Figure 2 A stacking mechanism for a PTFE copper clad laminate base film cutting device includes: a mounting frame 1, a first mounting part 2, a cylinder 3, a second mounting part 4, a set of first springs 5, and four sets of electromagnetic induction heating units 6.

[0020] Please see Figure 1The lamination mechanism requires the cutting equipment to leave space above the placement table 102. The traction mechanism 103 is positioned below the placement table 102, meaning the linear module is below the table surface. The table surface 102 has two strip grooves 102a along the base film's movement direction. The linear module is fixed with connecting pieces extending through the strip grooves 102a, and a second pneumatic finger is installed on the extending portion of the connecting piece. The traction mechanism 103 acts on the starting point of the base film at the two edges parallel to the base film's movement direction.

[0021] Please see Figure 2 and Figure 4 The mounting frame 1 can be constructed from profiles. It can be equipped with a set of support legs with the bottom of the support legs fixedly connected to the placement platform 102. Alternatively, the mounting frame 1 can be hoisted to the top of the wall above the placement platform 102 using expansion bolts.

[0022] The first mounting part 2 is slidably connected to the mounting frame 1. More specifically, the top surface of the first mounting part 2 is fixedly connected with four first guide posts 2a, and the mounting frame 1 is fixedly connected with four T-blocks 1a by fasteners of matching profiles. The T-blocks 1a have first holes, and the first guide sleeves of the matching first guide posts 2a are fixedly connected to the first holes.

[0023] Cylinder 3 is disposed between the first mounting part 2 and the mounting bracket 1, and is used to drive the first mounting part 2 to rise and fall. The cylinder 3, the mounting bracket 1, and the first mounting part 2 can be configured such that the cylinder body of cylinder 3 is fixedly connected to the mounting bracket 1 through an end flange, and the piston rod of cylinder 3 is fixedly connected to the first mounting part 2.

[0024] Please see Figure 3 and Figure 4 The second mounting part 4 is slidably connected to the first mounting part 2 and is located below the first mounting part 2. More specifically, the top surface of the second mounting part 4 is fixedly connected with four second guide posts 4a, and the first mounting part 2 has four second holes, in which bushings are embedded, which serve as second guide sleeves matching the second guide posts 4a.

[0025] The first spring 5 is positioned between the first mounting portion 2 and the second mounting portion 4 to keep the second mounting portion 4 in a position away from the first mounting portion 2. More specifically, a stop block 4a1 is fixedly connected to the top of the second guide post 4a; four compression springs 5 ​​are used, each sleeved on one of the four second guide posts 4a; the first springs 5 ​​are kept compressed, with their two ends abutting against the first mounting portion 2 and the second mounting portion 4 respectively; under the action of the first springs 5, the stop block 4a1 presses downward against the top surface of the first mounting portion 2, and the second mounting portion 4 reaches a position away from the first mounting portion 2.

[0026] Please see Figure 2 and Figure 5The induction coil modules 61 of the four sets of electromagnetic induction heating units 6 are respectively connected to the four corners of the second mounting part 4. More specifically, the induction coil module 61 includes: a coil 611 and a high-frequency power supply 612 (generally converting the power frequency to high-frequency AC through an inverter, rectifier circuit, and resonant capacitor). The coil 611 is connected to the second mounting part 4, and the high-frequency power supply 612 is externally connected to supply power to the coil 611.

[0027] The heated bodies 62 of the four sets of electromagnetic induction heating units 6 are respectively connected to the four corners of the first mounting part 2. When the second mounting part 4 is located away from the first mounting part 2, the heated bodies 62 are outside the induction coil module 61, that is, the heated bodies 62 do not enter the coil 611 at this time.

[0028] Correspondingly, the electromagnetic induction heating unit 6 may also include a cooling system. For example, nozzle water cooling or fan air cooling may be used. After the heated body 62 enters the coil 611 to complete one inductive heating cycle and leaves the coil 611, the heated body 62 is cooled by the cooling system.

[0029] Please see Figure 2 and Figure 4 In some embodiments, the connection between the coil 611 and the second mounting part 4, and the connection between the heated body 62 and the first mounting part 2 are fixed connections.

[0030] During the descent of cylinder 3: First, the second mounting part 4 presses down on the base film, flattening it, while the coil 611 is energized. Next, the first mounting part 2 continues to descend against the first spring 5, meaning the first mounting part 2 approaches the second mounting part 4, and the heated body 62 enters the energized coil 611 for electromagnetic induction heating. Finally, the heated body 62 contacts the uppermost base film, heating and fusing the uppermost and lower base films together. Cylinder 3 rises and resets, and the operation is repeated after the next batch of cut base films is stacked.

[0031] Please see Figure 6 and Figure 7 In some embodiments, the connection between the coil 611 and the second mounting part 4, and the connection between the heated body 62 and the first mounting part 2 are both horizontal sliding connections.

[0032] Correspondingly, the first mounting part 2 is horizontally slidably connected with four first sliding parts 2b (the first sliding parts 2b are fixedly connected to the heated body 62). More specifically, two horizontal fourth guide posts 2b1 are fixedly connected to the first mounting part 2, and two first sliding parts 2b on the same side are slidably connected to the fourth guide posts 2b1.

[0033] Correspondingly, the second mounting part 4 is horizontally slidably connected with four second sliding parts 4b (the second sliding parts 4b are fixedly connected to the coil 611). The bottom surfaces of the four second sliding parts 4b are flush and extend beyond the bottom surface of the second mounting part 4, that is, the bottom surfaces of the four second sliding parts 4b contact and press against the four corners of the base film.

[0034] The corresponding first sliding part 2b and second sliding part 4b form a mounting group 6b for the installation of the electromagnetic induction heating unit 6. That is, the first sliding part 2b and the second sliding part 4b need to move horizontally synchronously. More specifically, the second sliding part 4b is fixed with two third guide posts 4b1, and the first sliding part 2b has two third holes. The second hole is embedded with a bushing, which serves as a third guide sleeve for the matching third guide post 4b1.

[0035] Please see Figure 7 and Figure 8 A slotted pin pair 7 is provided between the mounting assembly 6b and the first mounting part 2, or between the mounting assembly 6b and the second mounting part 4. The slotted pin pair 7 is used to convert the movement of the first mounting part 2 toward the second mounting part 4 into an outward movement of the mounting assembly 6b. Conversely, the movement of the first mounting part 2 away from the second mounting part 4 is converted into an inward movement of the mounting assembly 6b.

[0036] Taking the slotted pin pair 7 located between the mounting group 6b and the second mounting part 4 as an example: vertical plates 4c are fixedly connected to both sides of the second mounting part 4, and the guide groove 71 of the slotted pin pair 7 is opened in the vertical plate 4c; the pin 72 of the slotted pin pair 7 is fixed to the first sliding part 2b, and a bearing can be engaged on the pin 72, with the outer ring of the bearing contacting the inner walls on both sides of the guide groove 71.

[0037] Thus, during the descent of cylinder 3: First, the four second sliding parts 4b press against the base film, and at the same time, coil 611 is energized; then, the first mounting part 2 continues to move downward against the first spring 5, that is, the first mounting part 2 approaches the second mounting part 4, and the heated body 62 enters the energized coil 611 to perform electromagnetic induction heating. At the same time, the four second sliding parts 4b keep pressing against the base film and move outward to flatten the base film; finally, the heated body 62 contacts the uppermost base film, heating and fusing the uppermost base film and the lower base film together.

[0038] Please see Figure 8 Furthermore, the guide groove 71 of the slotted pin assembly 7 includes an inclined section 711 and a vertical section 712. That is, during the entire movement of the first mounting part 2 toward the second mounting part 4, the slotted pin assembly 7 converts a portion of the movement into the outward movement of the mounting assembly 6b. During the movement of the first mounting part 2 toward the second mounting part 4, the pin 72 of the slotted pin assembly 7 passes through the guide groove 71 in the order of the inclined section 711 and the vertical section 712.

[0039] The inclined section 711 is used to convert the movement of the first mounting part 2 toward the second mounting part 4 into the outward movement of the mounting assembly 6b, and the vertical section 712 is used to make the heated body 62 move vertically downward for a period of time before contacting the base film, so that the heated body 62 contacts the base film more stably.

[0040] Please see Figure 6 Furthermore, a scissor bracket 8 is provided between the first mounting part 2 and the second mounting part 4. More specifically, the scissor brackets 8 can be arranged in two symmetrical sets. One set of scissor brackets 8 is formed by two connecting rods hinged to the first mounting part 2. The lower ends of the two connecting rods are each hinged to a first slider 8a, which is horizontally slidably connected to the second mounting part 4. The first sliders 8a can both be convex, and the side wall of the second mounting part 4 is provided with a convex groove 4d.

[0041] When cylinder 3 rises and resets, the first mounting part 2 rises first, while the second mounting part 4 remains stationary under the action of the first spring 5, meaning the first mounting part 2 moves away from the second mounting part 4. After the first mounting part 2 contacts the stop block 4a1, the first mounting part 2 and the second mounting part 4 rise together. The movement of the first mounting part 2 away from the second mounting part 4 then becomes the inward movement of the mounting assembly 6b. During this movement, the second sliding part 4b still presses against the base film under the action of the first spring 5, which may affect the flatness of the base film.

[0042] By adding the scissor bracket 8, the first mounting part 2 and the second mounting part 4 can rise together without waiting for the first mounting part 2 to abut against the stop block 4a1. By using a suitable coefficient for the first spring 5, employing damped sliding for the first slider 8a, and adjusting the cylinder 3, the rising speed of the cylinder 3 is achieved faster than the speed at which the first spring 5 returns the second mounting part 4 away from the first mounting part 2. When the first mounting part 2 rises, the pin 72 first passes through the vertical section 712 of the guide groove 71. During this process, the second sliding part 4b does not move inward, providing a certain initial time. In summary, the second sliding part 4b can be moved away from the base film before the mounting assembly 6b moves inward, avoiding affecting the flatness of the base film.

[0043] Please see Figure 2 , Figure 5 and Figure 7 In some embodiments, a connecting member 9 is provided between the coil 611 of the induction coil 611 model and the second mounting part 4. The connecting member 9 includes: a sleeve 91, a retaining ring 92, and a top cover 93.

[0044] The outer wall of the sleeve 91 is stepped, with the smallest outer wall at the bottom. The retaining ring 92 is detachably connected to the bottom of the sleeve 91. More specifically, the outer wall at the bottom of the sleeve 91 has external threads, and the retaining ring 92 is threadedly connected to the sleeve 91.

[0045] The top cover 93 is detachably connected to the top of the sleeve 91, or more specifically, it can be snap-fitted. The coil 611 is inserted into the sleeve 91. Both the top end face of the sleeve 91 and the top surface of the top cover 93 have grooves 91a. After the two are connected, the grooves 91a press the two connecting sections 611a of the coil 611 together, thereby fixing the coil 611.

[0046] Using this connecting member 9, the second mounting part 4 is provided with a through hole. After the sleeve 91 is inserted into the through hole, it protrudes from the second mounting part 4 at the lower position. The retaining ring 92 is connected to the protruding position, and the sleeve 91 is fixedly connected to the second mounting part 4, so that the retaining wall and the second mounting part 4 can be fixedly connected. The second mounting part 4 is provided with a through groove for the sleeve 91 to be inserted and moved. The connecting member 9 can be used as the second sliding part 4b to realize the horizontal sliding connection between the retaining wall and the second mounting part 4.

[0047] Although the base film is relatively thin, the position of the topmost base film will still change significantly if multiple layers are stacked. For the second mounting part 4, the first spring 5 can compensate for this change. For the first mounting part 2, appropriate settings are needed to adapt the heated body 62 to this change.

[0048] Please see Figure 9 In some embodiments, the cylinder 3, mounting bracket 1, and first mounting part 2 can be configured as follows: the cylinder body of the cylinder 3 is hinged to the mounting bracket 1, and the piston rod of the cylinder 3 is hinged to a second slider 3a; the second slider 3a is horizontally slidably connected to the first mounting part 2, or more specifically: a fifth guide post 2c is fixedly connected to the top surface of the first mounting part 2; a set of second springs 3b is also provided between the second slider 3a and the first mounting part 2, or more specifically: the second spring 3b is a compression spring and is sleeved on the fifth guide post 2c.

[0049] The piston rod of cylinder 3 extends, causing the first mounting part 2 to descend. After the heated body 62 contacts the base film, the piston rod of cylinder 3 can continue to extend against the second spring 3b, and the corresponding second slider 3a slides against the second spring 3b. Cylinder 3 can provide a stable downward pressure on the first mounting part 2, and can also make the heated body 62 adapt to changes in the position of the uppermost base film.

Claims

1. A stacking mechanism for a PTFE copper clad laminate substrate film cutting device, characterized in that, include: Mounting bracket (1); The first mounting part (2) is slidably connected to the mounting bracket (1) from top to bottom; A cylinder (3) is disposed between the first mounting part (2) and the mounting bracket (1) for driving the first mounting part (2) to rise and fall; The second mounting part (4) is slidably connected to the first mounting part (2) and is located below the first mounting part (2); A set of first springs (5) is disposed between the first mounting part (2) and the second mounting part (4) for keeping the second mounting part (4) away from the first mounting part (2); Four sets of electromagnetic induction heating units (6), with induction coil modules (61) respectively connected to the four corners of the second mounting part (4), and the heated body (62) respectively connected to the four corners of the first mounting part (2); when the second mounting part (4) is in a position away from the first mounting part (2), the heated body (62) is outside the induction coil module (61).

2. The stacking mechanism of the PTFE copper clad laminate substrate film cutting equipment according to claim 1, characterized in that, The first mounting part (2) has four first sliding parts (2b) in a horizontal sliding connection; the second mounting part (4) has four second sliding parts (4b) in a horizontal sliding connection; the bottom surfaces of the four second sliding parts (4b) are flush and also extend beyond the bottom surface of the second mounting part (4); The corresponding first sliding part (2b) and second sliding part (4b) form a set of mounting groups (6b) for mounting the electromagnetic induction heating unit (6); a slotted pin pair (7) is provided between the mounting group (6b) and the first mounting part (2) or between the mounting group (6b) and the second mounting part (4), and the slotted pin pair (7) is used to: convert the movement of the first mounting part (2) toward the second mounting part (4) into the outward movement of the mounting group.

3. The stacking mechanism of the PTFE copper clad laminate substrate film cutting equipment according to claim 2, characterized in that, The guide groove (71) of the slotted pin pair (7) includes: an inclined section (711) and a vertical section (712); during the movement of the first mounting part (2) close to the second mounting part (4), the pin (72) of the slotted pin pair (7) passes through the guide groove (71) in the order of the inclined section (711) and the vertical section (712).

4. The stacking mechanism of the PTFE copper clad laminate substrate film cutting equipment according to claim 3, characterized in that, A scissor bracket (8) is provided between the first mounting part (2) and the second mounting part (4).

5. The stacking mechanism of the PTFE copper clad laminate substrate film cutting equipment according to claim 1, characterized in that, The connection between the coil (611) and the second mounting part (4), and the connection between the heated body (62) and the first mounting part (2) are both fixed connections.

6. The stacking mechanism of the PTFE copper clad laminate substrate film cutting equipment according to claim 1, characterized in that, A connecting member (9) is provided between the coil (611) of the induction coil (611) mold and the second mounting part (4). The connecting member (9) includes: a sleeve (91) with a stepped outer wall, a retaining ring (92) detachably connected to the lower part of the sleeve (91), and a top cover (93) detachably connected to the top of the sleeve (91).

7. The stacking mechanism of the PTFE copper clad laminate substrate film cutting equipment according to claim 1, characterized in that, The cylinder body of the cylinder (3) is hinged to the mounting bracket (1), and the piston rod is hinged to the second slider (3a); the second slider (3a) is horizontally slidably connected to the first mounting part (2), and a set of second springs (3b) is also provided between the second slider (3a) and the first mounting part (2).

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