A pressing mechanism for vacuum packaging of aluminum foil bags

Abstract

The present application relates to a kind of pressing mechanism for aluminum foil bag vacuum packaging, including frame and the lower pressing mechanism and upper pressing mechanism of frame setting, upper pressing mechanism includes upper lifting structure and upper sealing block, lower pressing mechanism includes lower lifting structure and lower sealing block, and the width of lower sealing block is less than upper sealing block, lower sealing block is close to the side of conveying device and is provided with straightening fixed pressing block, straightening pressing rod and straightening push cylinder, straightening push cylinder is connected with straightening lower pressing block, the upper sealing block below is provided with straightening upper pressing block, and aluminum foil bag is clamped by reciprocating and cooperating straightening lower pressing block, by straightening fixed pressing block and upper sealing block, one end of aluminum foil bag is pressed, by the cooperation of straightening upper pressing block and straightening lower pressing block, the other end of aluminum foil bag is clamped, so it can be moved by straightening push cylinder to drive the one end of aluminum foil bag being clamped, and the opening of entire aluminum foil bag is straightened.

Description

Technical Field

[0001] This invention relates to the field of reel tray packaging equipment, and more particularly to a pressing mechanism for vacuum packaging of aluminum foil bags. Background Technology

[0002] In the semiconductor industry, tape and reel (reel, roll, spool, roll) are the main packaging materials for ICs and are important products for IC storage, transportation and back-end material supply. Tape and reel, also known as IC tape and reel, is a type of tape that can hold multiple electronic components on a single tape. This tape is then wound onto a reel, and the reel is then wrapped with protective tape, placed in an aluminum foil bag, and then the aluminum foil bag is vacuum-sealed and heat-pressed.

[0003] When performing vacuum packaging, the opening of the aluminum foil bag needs to be pressed closed first, and then the vacuuming operation is performed. Existing pressing mechanisms either use an upper and lower cooperation to achieve pressing or the lower part is a fixed plate, and the pressing is achieved directly through the upper lifting pressure block. Such structures have certain defects. Since the aluminum foil bag contains a reel disc, when pressing directly, the aluminum foil bag is prone to wrinkles, which will affect the subsequent heat sealing effect and make the sealed bag look unsightly. Summary of the Invention

[0004] The purpose of this invention is to provide a pressing mechanism for vacuum packaging of aluminum foil bags. By straightening and fixing the pressing block and the upper sealing block, one end of the aluminum foil bag is pressed. The other end of the aluminum foil bag is clamped by the cooperation of the straightening upper pressing block and the straightening lower pressing block. In this way, the straightening push cylinder can drive the clamped end of the aluminum foil bag to move, so that the opening of the entire aluminum foil bag is straightened. Then, with the cooperation of the lower sealing block and the upper sealing block, the pressing can be completed, ensuring that the bag opening is straight during subsequent vacuuming and heat sealing operations.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a pressing mechanism for vacuum packaging of aluminum foil bags, comprising a frame and a lower pressing mechanism and an upper pressing mechanism arranged on the frame. The upper pressing mechanism includes an upper lifting structure and an upper sealing block, and the lower pressing mechanism includes a lower lifting structure and a lower sealing block. The width of the lower sealing block is smaller than that of the upper sealing block. A straightening fixing block, a straightening rod, and a straightening pushing cylinder are arranged on the side of the lower sealing block near the conveying device. The straightening pushing cylinder is connected to a straightening lower pressing block. A straightening upper pressing block is arranged below the upper sealing block. It can reciprocate and cooperate with the straightening lower pressing block to clamp the aluminum foil bag.

[0006] This preferred technical solution features a specific design for the pressing mechanism, creating a width difference between the lower and upper sealing blocks. The upper sealing block extends beyond the lower sealing block by engaging the straightening fixing block, the straightening pressure rod, and the straightening lower pressure block. This allows the straightening fixing block and the upper sealing block to press one end of the aluminum foil bag, while the straightening upper and lower pressure blocks clamp the other end. The straightening push cylinder then moves the clamped end of the aluminum foil bag, straightening the entire opening. This, combined with the pressing action of the lower and upper sealing blocks, ensures the bag opening remains straight during vacuuming.

[0007] Preferably, the lower part of the upper sealing block is provided with a straightening groove, a straightening slide rail is provided in the straightening groove, the upper straightening pressure block cooperates with the straightening slide rail, and a return spring that cooperates with the upper straightening pressure block is provided in the straightening groove.

[0008] This preferred solution uses a return spring to reset the straightening upper pressure block, which makes it easier to straighten the next aluminum foil bag.

[0009] Preferably, the straightening fixing block, the straightening rod, and the straightening pushing cylinder are driven to lift and lower by the first straightening cylinder, the second straightening cylinder, and the third straightening cylinder respectively installed on the frame.

[0010] This preferred solution, through the design of the first straightening cylinder, the second straightening cylinder, and the third straightening cylinder, enables the straightening fixing block, the straightening rod, and the straightening pushing cylinder to rise and fall independently relative to the lower sealing block, thus avoiding interference from the lower sealing block during the straightening process.

[0011] Preferably, the upper part of the straightening fixing block and the straightening lower block and the lower part of the straightening upper block are provided with a notch, and a wear-resistant block is provided in the notch.

[0012] This preferred solution, through the design of the wear-resistant block, ensures that the straightening fixing block can press one end of the aluminum foil bag tightly, and ensures that the upper and lower straightening blocks can clamp the other end of the aluminum foil bag, thus guaranteeing the straightening effect.

[0013] Preferably, the lower lifting structure includes a lower pressing seat mounted on the frame. The lower pressing seat drives the lower sealing block inside the lower pressing seat through a lower pressing cylinder mounted below it. The upper lifting structure is a structure with adjustable lifting range, and the lower sealing block uses the position of the upper sealing block as the lifting reference.

[0014] This preferred embodiment designs the upper lifting structure as an adjustable structure, so that the lifting height of the upper lifting structure can be adjusted according to the number and thickness of the reel discs contained in the aluminum foil bag, thereby ensuring that the pressing height of the lower sealing block and the upper sealing block is in the middle of the reel disc.

[0015] Preferably, the upper lifting structure includes an upper pressing seat, on which two upper pressing screws are installed, and the lower ends of the two upper pressing screws are connected to an upper sealing block. An upper pressing motor is provided on the upper pressing seat, and drives the rotation of the two upper pressing screws through an upper pressing belt and a pulley. The upper pressing motor is a motor with an adjustable rotation number.

[0016] This preferred solution uses a motor and belt to achieve synchronous rotation of two upper pressure screws. The rotation of the screws drives the upper sealing block to rise and fall. Thus, the lifting height can be adjusted by adjusting the number of rotations of the upper pressure motor.

[0017] Preferably, the upper pressure seat is provided with a tensioning shaft, the tensioning shaft is provided with a tensioning wheel for tensioning the upper pressure belt, the lower part of the upper pressure seat is provided with a tensioning mounting groove, the tensioning mounting groove is provided with a through tensioning adjustment groove, the lower part of the tensioning shaft is provided with a threaded hole, and is locked to the upper pressure seat by a bolt passing through the tensioning adjustment groove, and the head of the locking bolt is located in the tensioning mounting groove.

[0018] This preferred solution ensures that the upper pressure belt is in a taut state through the design of the tension shaft and tension wheel. The installation and position adjustment of the tension shaft are convenient, and its locking structure is completely embedded in the upper pressure seat, so there will be no interference with the upper sealing block.

[0019] Preferably, the frame has two positioning slots on its table surface, and positioning mounting holes are arrayed in the positioning slots. Positioning sensors are installed through the positioning mounting holes. The positioning sensors generate sensing signals with the aluminum foil bags to control the operation of the conveying device. Different positioning mounting holes are used to install the positioning sensors to adjust their positions.

[0020] The design features two positioning slots, and the position of the positioning sensor within the slots can be adjusted via an array of positioning mounting holes, allowing for the sensing and positioning of aluminum foil bags of different sizes. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a pressing mechanism for vacuum packaging of aluminum foil bags.

[0022] Figure 2 This is a three-dimensional schematic diagram of the upper and lower pressing mechanisms.

[0023] Figure 3 This is a bottom-view perspective of the upper pressing mechanism.

[0024] Figure 4 This is a three-dimensional schematic diagram of the tensioning shaft and tensioning wheel.

[0025] Figure 5This is a three-dimensional schematic diagram of the lower pressing mechanism.

[0026] Figure 6 This is a three-dimensional schematic diagram of the machine frame platform and the lower pressing mechanism.

[0027] Figure 7 This is a schematic diagram showing the pressing position of the aluminum foil bag.

[0028] The text labels in the diagram represent: 1. Frame; 2. Conveying device; 6. Lower pressing mechanism; 7. Upper pressing mechanism; 11. Upper pressing seat; 12. Upper pressing motor; 13. Upper pressing belt; 14. Upper pressing screw; 15. Upper sealing block; 16. Straightening slide rail; 17. Straightening upper pressing block; 21. Lower pressing seat; 22. Lower pressing cylinder; 23. Lower sealing block; 24. First straightening cylinder; 25. Second straightening cylinder; 26. Third straightening cylinder; 27. Straightening fixed pressing block; 28. Straightening rod; 29. ​​Straightening push cylinder; 30. Straightening lower pressing block; 31. Positioning groove; 32. Positioning sensor; 41. Tensioning shaft; 42. Tensioning wheel; 43. Tensioning mounting groove; 44. Tensioning adjustment groove. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0030] like Figure 1-2 As shown, the specific structure of the present invention is as follows: a pressing mechanism for vacuum packaging of aluminum foil bags, including a frame 1 and a lower pressing mechanism 6 and an upper pressing mechanism 7 arranged on the frame 1. The upper pressing mechanism 7 includes an upper lifting structure and an upper sealing block 15, and the lower pressing mechanism 7 includes a lower lifting structure and a lower sealing block 23. The width of the lower sealing block 23 is smaller than that of the upper sealing block 15. A straightening fixture is provided on the side of the lower sealing block 23 near the conveying device 2. The machine includes a fixed pressure block 27, a straightening pressure rod 28, and a straightening push cylinder 29. The straightening push cylinder 29 is connected to a straightening lower pressure block 30. Below the upper sealing block 15, there is a straightening upper pressure block 17 that can reciprocate and cooperate with the straightening lower pressure block 30 to clamp the aluminum foil bag. The straightening fixed pressure block 27, the straightening pressure rod 28, and the straightening push cylinder 29 are driven to rise and fall by the first straightening cylinder 24, the second straightening cylinder 25, and the third straightening cylinder 26 respectively provided on the frame 1.

[0031] In practical use, this solution allows for the placement of aluminum foil bags either manually or by a robotic arm. Alternatively, the aluminum foil bags can be fed and unloaded via the conveyor device 2. After unloading, the upper sealing block 15 descends via the upper lifting structure. Simultaneously, the first straightening cylinder 24, the second straightening cylinder 25, and the third straightening cylinder 26 raise the straightening fixing block 27, the straightening rod 28, and the straightening pushing cylinder 29. This causes the straightening fixing block 27 to cooperate with the upper sealing block 15 to press down one end of the aluminum foil bag, while the lower straightening block 30 cooperates with the upper straightening block 17 to clamp the other end of the aluminum foil bag. Then, the bag is straightened... The cylinder 29 is pushed to move the straightening lower pressure block 30 outward, which in turn moves the straightening upper pressure block 30 and 17 and one end of the clamped aluminum foil bag outward. This straightens the aluminum foil bag, which may have wrinkles. Then, the lower lifting structure drives the lower sealing block 23 to rise and cooperate with the upper sealing block 15 to complete the opening and pressing of the straightened aluminum foil bag. Before the lower sealing block 23 seals after straightening, the straightening pressure rod 28 presses the middle of the aluminum foil bag onto the upper sealing block 15. This pressing structure can straighten the wrinkled parts of the aluminum foil bag while completing the pressing, thereby ensuring good vacuuming and sealing effects in the future.

[0032] like Figure 3 As shown, the upper sealing block 15 has a straightening groove at its lower part, a straightening slide rail 16 is provided in the straightening groove, the upper straightening pressure block 17 cooperates with the straightening slide rail 16, and a reset spring that cooperates with the upper straightening pressure block 17 is provided in the straightening groove.

[0033] The straightening upper pressure block 17 and the straightening slide rail 16, along with the design of the return spring, enable the straightening upper pressure block 17 to reciprocate along a straight line.

[0034] like Figure 3 and Figure 5 As shown, the upper part of the straightening fixing block 27 and the straightening lower block 30 and the lower part of the straightening upper block are provided with notches, and wear-resistant blocks are provided in the notches.

[0035] The wear-resistant block is not shown in the picture, but the notch is clearly shown. The design of the wear-resistant block can ensure that both the fixed and movable clamping ends of the aluminum foil bag have a stable pressing or clamping effect.

[0036] like Figure 7 As shown, the lower lifting structure includes a lower pressing seat 21 mounted on the frame 1. The lower pressing seat 21 drives the lower sealing block 23 inside the lower pressing seat 21 through the lower pressing cylinder 22 mounted below it. The upper lifting structure is a structure with adjustable lifting range. The lower sealing block 23 uses the position of the upper sealing block 15 as the lifting reference.

[0037] from Figure 7It can be concluded that in order to achieve a good seal, the sealing height should be in the middle of the reel tray inside the aluminum foil bag. Since straightening and other processes need to cooperate with the upper sealing block 15 first, this application sets the upper lifting structure as a structure with adjustable lifting range. The upper sealing block 15 is lifted first, and then, based on this, the straightening and lower sealing block 23 are cooperated to seal.

[0038] like Figure 3-4 As shown, the upper lifting structure includes an upper pressure seat 11, on which two upper pressure screws 14 are mounted, and the lower ends of the two upper pressure screws 14 are connected to an upper sealing block 15. An upper pressure motor 12 is installed on the upper pressure seat 11, and drives the rotation of the two upper pressure screws 14 through an upper pressure belt 13 and a pulley. The upper pressure motor 12 is an adjustable motor. The upper pressure seat 11 is provided with a tensioning shaft 41, and the tensioning shaft 41 is provided with a tensioning wheel 42 for tensioning the upper pressure belt 13. The lower part of the upper pressure seat 11 is provided with a tensioning mounting groove 43, and a through tensioning adjustment groove 44 is provided in the tensioning mounting groove 43. The lower part of the tensioning shaft 41 is provided with a threaded hole, and it is locked to the upper pressure seat 11 by a bolt passing through the tensioning adjustment groove 44, and the head of the locking bolt is located in the tensioning mounting groove 43.

[0039] When installing the upper lifting structure, the position of the tensioning shaft 41 needs to be adjusted first so that the tensioning wheel 42 tensions the upper pressure belt 13. Then, the tensioning shaft 41 is locked by passing a bolt through the tension adjustment groove 44, and the bolt head will be in the tension installation groove 43. The required lowering height of the upper sealing block 15 is calculated based on the thickness of the reel disc in the aluminum foil bag to be packaged (if two are stacked, this thickness refers to the sum of the stacked thicknesses). This is then converted into the number of rotations of the upper pressure motor 12. Thus, the upper pressure motor 12 only needs to rotate the calculated number of rotations to drive the two upper pressure screws 14 through the upper pressure belt 13, which will lower the upper sealing block 15 to the required height.

[0040] like Figure 6 As shown, two positioning slots 31 are provided on the table surface of the frame 1. Positioning mounting holes are arrayed in the positioning slots 31. Positioning sensors 32 are installed through the positioning mounting holes. The positioning sensors 32 generate sensing signals with the aluminum foil bag to control the operation of the conveying device 2. Different positioning mounting holes are used to install the positioning sensors 32 to adjust the position of the positioning sensors 32.

[0041] Before pressing, the positioning sensor 32 is installed in the corresponding positioning hole according to the model of the aluminum foil bag. When the conveying device 2 is conveying, the aluminum foil bag will generate a sensing signal when it passes the positioning sensor 32. Thus, the aluminum foil bag on the conveying device 2 can be positioned by checking whether the positioning sensor 32 at the end of the conveying device generates a sensing signal. After the sensing signal is generated, the operation of the conveying device 2 is stopped. In the subsequent straightening operation, the straightening operation is stopped when the other positioning sensor 32 generates a sensing signal.

[0042] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A pressing mechanism for vacuum packaging of aluminum foil bags, comprising a frame and a lower pressing mechanism and an upper pressing mechanism disposed on the frame, the upper pressing mechanism comprising an upper lifting structure and an upper sealing block, and the lower pressing mechanism comprising a lower lifting structure and a lower sealing block, characterized in that, The width of the lower sealing block is smaller than that of the upper sealing block. A straightening fixing block, a straightening rod, and a straightening pushing cylinder are arranged on the side of the lower sealing block near the conveying device. The straightening pushing cylinder is connected to a straightening lower pressing block. Below the upper sealing block is a straightening upper pressing block that can reciprocate and cooperates with the straightening lower pressing block to clamp the aluminum foil bag. A straightening groove is formed in the lower part of the upper sealing block, and a straightening slide rail is installed within the straightening groove. The straightening upper pressing block cooperates with the straightening slide rail, and a return spring that cooperates with the straightening upper pressing block is installed within the straightening groove. The lower lifting structure includes a lower pressing seat mounted on the frame. The lower pressing seat drives the lower sealing block within it via a lower pressing cylinder. The upper lifting structure has an adjustable lifting range. The sealing block uses the position of the upper sealing block as the reference for lifting. The upper lifting structure includes an upper pressure seat, on which two upper pressure screws are installed. The lower ends of the two upper pressure screws are connected to the upper sealing block. An upper pressure motor is installed on the upper pressure seat, and drives the rotation of the two upper pressure screws through an upper pressure belt and pulley. The upper pressure motor is an adjustable motor. Two positioning slots are opened on the table of the frame. Positioning mounting holes are arrayed in the positioning slots. Positioning sensors are installed through the positioning mounting holes. The positioning sensors generate sensing signals with the aluminum foil bag to control the operation of the conveying device. Different positioning mounting holes are used to install the positioning sensors to adjust their positions.

2. The pressing mechanism for vacuum packaging of aluminum foil bags according to claim 1, characterized in that, The straightening fixing block, the straightening rod, and the straightening pushing cylinder are driven to rise and fall by the first straightening cylinder, the second straightening cylinder, and the third straightening cylinder respectively installed on the frame.

3. The pressing mechanism for vacuum packaging of aluminum foil bags according to claim 1, characterized in that, The upper part of the straightening fixing block and the lower straightening block and the lower straightening block are provided with notches, and wear-resistant blocks are provided in the notches.

4. The pressing mechanism for vacuum packaging of aluminum foil bags according to claim 1, characterized in that, The upper pressure seat is provided with a tensioning shaft, and the tensioning shaft is provided with a tensioning wheel for tensioning the upper pressure belt. The lower part of the upper pressure seat is provided with a tensioning mounting groove, and a through tensioning adjustment groove is provided in the tensioning mounting groove. The lower part of the tensioning shaft is provided with a threaded hole, and it is locked to the upper pressure seat by a bolt passing through the tensioning adjustment groove, and the head of the locking bolt is located in the tensioning mounting groove.

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