Film expansion device

Abstract

The present invention provides a film expansion device, which includes: a base, a lifting ring, a film expansion ring, a pressing assembly, a top pressing assembly, a film collapse frame, and a driving assembly; the film expansion ring is located on a side of the lifting ring facing a first direction, the film expansion ring is fixedly connected to the lifting ring, a surface of the lifting ring is provided with a transmission opening and a mounting groove, and the film expansion ring covers the transmission opening and the mounting groove; the driving assembly is connected to the lifting ring, and the driving assembly is used to drive the lifting ring to move relative to the film collapse frame along the first direction; the pressing assembly is located on the outside of the lifting ring, the transmission opening is located at one end of the lifting ring facing the pressing assembly, one end of the pressing assembly is pivotally connected to the lifting ring along a second direction, the top pressing assembly is located on a side of the pressing assembly facing away from the lifting ring, one end of the pressing assembly is fixedly connected to the base, and the other end of the pressing assembly is movably connected to the pressing assembly; the top pressing assembly is used to push the pressing assembly to flip relative to the lifting ring. The present invention can ensure the uniformity of film expansion.

Description

Technical Field

[0001] The present invention relates to the technical field of semiconductor packaging, and in particular to a film expansion device. Background Art

[0002] Before picking up the chip, in order to ensure the stability of chip picking, it is usually necessary to expand the film on the film ring. In this process, there is a blue film on the film ring, and the chip is attached to the blue film.

[0003] The conventional film expansion device typically operates by first inserting the film ring horizontally through the transfer opening on the lifting ring into the film expansion station of the lifting ring, clamping the film ring between the lifting ring and the film expansion ring in the Z direction. The film collapse frame is then driven in the Z direction relative to the film ring, so that the film collapse frame contacts the blue film on the film ring from the inside of the lifting ring, and drives the chips on the blue film to move relative to the film ring in the Z direction, completing the film expansion process.

[0004] While existing film expansion devices can improve film expansion efficiency compared to manual operations, the presence of the transfer opening leaves the portion of the film expansion ring above the transfer opening permanently suspended in the air. This can easily cause the ring to deform at the transfer opening during film expansion, affecting film expansion uniformity. Summary of the Invention

[0005] To solve the above problems, the film expansion device provided by the present invention can automatically limit the film expansion ring located at the transmission opening by setting a top pressure component and a film collapse frame to prevent the film expansion ring from deforming when expanding the film ring, thereby ensuring the uniformity of the film expansion.

[0006] The present invention provides a film expanding device, comprising: a base, a lifting ring, a film expanding ring, a pressing assembly, a top pressing assembly, a film collapsing frame and a driving assembly;

[0007] The film expanding ring is located on the side of the lifting ring facing the first direction, the film expanding ring is fixedly connected to the lifting ring, a conveying opening and a mounting groove are opened on the surface of the lifting ring facing the first direction, the mounting groove passes through the inner side wall of the lifting ring and is used to load the film ring, the conveying opening is communicated with the outer side wall of the lifting ring and the mounting groove respectively, the film expanding ring covers the conveying opening and the mounting groove, and the film collapsing frame is located on the inner side of the lifting ring;

[0008] The driving assembly is connected to the lifting ring, and is used to drive the lifting ring to move relative to the film collapse frame along the straight line direction where the first direction is located, and when the lifting ring moves away from the first direction, the film collapse frame is driven to expand the film on the sheet ring;

[0009] The pressing assembly is located on the outside of the lifting ring, the transmission opening is located at one end of the lifting ring facing the pressing assembly, one end of the pressing assembly is pivotally connected to the lifting ring along the second direction, the pressing assembly is located on the side of the pressing assembly facing away from the lifting ring, one end of the pressing assembly is fixedly connected to the base, and the other end of the pressing assembly is movably connected to the pressing assembly;

[0010] The pressing assembly is used to push the pressing assembly to flip relative to the lifting ring when the lifting ring moves away from the first direction, so that the other end of the pressing assembly is pressed on the side of the expansion ring facing the first direction and contacts the expansion ring.

[0011] Optionally, the film expansion device further comprises: an elastic reset member;

[0012] One end of the elastic reset member is connected to the buckling assembly, and the other end of the elastic reset member is connected to the lifting ring;

[0013] The elastic reset member is used to drive the pressing assembly to flip toward the direction where the pressing assembly is located.

[0014] Optionally, the buckling assembly includes: a buckling plate and a fine-adjusting pressure rod;

[0015] One end of the buckling plate is pivotally connected to the lifting ring along the second direction, and the other end of the buckling plate is threadedly connected to the fine-adjusting pressure rod;

[0016] When the buckling plate buckles the membrane expansion ring, it contacts the membrane expansion ring through the fine-tuning pressure rod.

[0017] Optionally, the pressing plate includes: a first fixing screw, a pressing sub-plate and a supporting sub-plate;

[0018] The pressing sub-plate is provided with a first waist-shaped hole along a first direction, and one end of a first fixing screw passes through the first waist-shaped hole and is threadedly connected to one end of the supporting sub-plate to fix the pressing sub-plate to the supporting sub-plate;

[0019] The other end of the supporting sub-plate is pivotally connected to the lifting ring along the second direction, and the other end of the pressing sub-plate extends toward the direction where the lifting ring is located and is threadedly connected to the fine-tuning pressure rod.

[0020] Optionally, the top pressing assembly includes: a support rod and a roller;

[0021] One end of the support rod is fixedly connected to the base; the roller is rollingly connected to the buckling assembly and is pivotally connected to the other end of the support rod along the second direction; the roller is used to push the buckling assembly to flip relative to the lifting ring when the lifting ring moves away from the first direction, so that the other end of the buckling assembly is buckled on the side of the film expanding ring facing the first direction and contacts the film expanding ring.

[0022] Optionally, the pressing assembly further comprises: a fixing seat and a second fixing screw;

[0023] The fixing seat is provided with a second waist-shaped hole, and one end of the second fixing screw passes through the second waist-shaped hole and is threadedly connected to the base to fix the fixing seat and the base.

[0024] Optionally, the pressing assembly further comprises: a locking member;

[0025] A sliding hole is provided on the surface of the fixing seat facing the first direction. The support rod is slidably connected to the fixing seat along the straight line direction of the first direction through the sliding hole. The locking piece is movably connected to the fixing seat and is used to fix the support rod and the fixing seat.

[0026] Optionally, the fixing seat includes: a mounting portion, a supporting portion and a holding portion;

[0027] The supporting portion and the holding portion are both located on one side of the mounting portion facing the first direction, the second waist-shaped hole is located on the mounting portion, one end of the supporting portion is fixedly connected to the mounting portion, and the other end of the supporting portion is fixedly connected to one end of the holding portion, so that the holding portion is in a suspended state;

[0028] The sliding hole is located on the clamping part, and a clamping opening is opened at one end of the clamping part away from the supporting part. The clamping opening passes through the clamping part along the first direction and is connected to the sliding hole. One end of the locking piece passes through the clamping opening and is threadedly connected to the clamping part. The other end of the locking piece is located outside the clamping part and is used to be squeezed with the clamping part.

[0029] Optionally, the membrane expansion ring includes: a first arc portion and a second arc portion;

[0030] The first arc portion and the second arc portion are symmetrically fixed on one side of the membrane expansion ring facing the first direction, and opposite ends of the first arc portion and the second arc portion are spaced apart to form a first avoidance opening;

[0031] A second avoidance opening is provided at a position of the lifting ring corresponding to the first avoidance opening. The second avoidance opening penetrates the lifting ring along a straight line direction where a fourth direction is located. The fourth direction is perpendicular to the first direction and the second direction.

[0032] Optionally, the film expansion device further comprises: a slide rail and a manipulator;

[0033] The slide rail is fixedly arranged on the outside of the lifting ring, and the manipulator is slidably connected to the slide rail along the straight line direction where the fourth direction is located. The manipulator is used to pull the sheet ring into or push it out of the installation groove through the conveying opening.

[0034] The film expansion device provided by an embodiment of the present invention drives the lifting ring to move along the straight line direction of the first direction through the driving component, so that the lifting ring can move away from the first direction, so that when the film collapse frame expands the film on the sheet ring, the pressing component can press the outer wall of the pressing component, so that the pressing component flips inward until it is pressed on the side of the film expansion ring facing the first direction and conflicts with the film expansion ring, thereby preventing the part of the film expansion ring located at the transmission opening from deforming in the first direction during the film expansion process, thereby affecting the uniformity of the film expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 This is a schematic structural diagram of a film expansion device according to an embodiment of the present application;

[0037] Figure 2 A schematic exploded view of a film expansion device according to an embodiment of the present application;

[0038] Figure 3 This is a schematic partial structural diagram of a film expansion device according to an embodiment of the present application when expanding a film ring;

[0039] Figure 4 This is a schematic structural diagram of a film expansion device according to an embodiment of the present application;

[0040] Figure 5 This is a schematic structural diagram of a buckling assembly according to an embodiment of the present application;

[0041] Figure 6 This is a schematic partial structural diagram of a film expansion device according to an embodiment of the present application when expanding a film ring;

[0042] Figure 7 This is a schematic structural diagram of a top pressing assembly according to an embodiment of the present application;

[0043] Figure 8 This is a schematic partial structural diagram of the film expansion device according to one embodiment of the present application after loading the film ring.

[0044] Reference numerals:

[0045] 1. Base; 2. Lifting ring; 21. Transmission opening; 22. Second avoidance opening; 23. Mounting slot; 3. Expanding ring; 31. First arc portion; 32. Second arc portion; 33. First avoidance opening; 4. Pressing assembly; 41. Pressing plate; 411. First fixing screw; 412. Pressing sub-plate; 413. Supporting sub-plate; 414. First waist-shaped hole; 42. Fine-tuning pressure rod; 43. Rotating axis; 44. Fixed block; 5. Pressing assembly; 51. Support rod; 52. Roller; 53. Step pin; 54. Spacer; 55. Fixed seat; 551. Mounting part; 552. Support part; 553. Clamping part; 554. Sliding hole; 555. Second waist-shaped hole; 556. Clamping opening; 56. Second fixing screw; 57. Locking part; 61. Film collapse rack; 62. Drive assembly; 63. Slide rail; 64. Manipulator; 641. Manipulator arm; 642. Clamping part; 65. Elastic reset part; 7. Sheet ring. DETAILED DESCRIPTION

[0046] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0048] Spatially relative terms such as "below," "beneath," "beneath," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It should be understood that in addition to the orientations shown in the figures, spatially relative terms also include different orientations of the device in use and operation. For example, if the device in the drawings is turned over, an element or feature described as "below" or "beneath" or "beneath" the other elements will be oriented "above" the other elements or features. Thus, the exemplary terms "below" and "below" can include both the above and below orientations. In addition, the device can also include alternative orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are to be interpreted accordingly.

[0049] It should be noted that when an element is referred to as being "fixedly connected" to another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element. Conversely, when an element is referred to as being "directly on" another element, there are no intermediate elements. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0050] When used herein, the singular forms "a", "an", and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0051] An embodiment of the present invention provides a film expansion device, see Figure 1 and Figure 2 The film expanding device includes: a base 1, a lifting ring 2, a film expanding ring 3, a pressing component 4, a top pressing component 5, a film collapsing frame 61 and a driving component 62.

[0052] Among them, the film expanding ring 3 is located on the side of the lifting ring 2 facing the first direction; the film expanding ring 3 is fixedly connected to the lifting ring 2 by screws; the surface of the lifting ring 2 facing the first direction is provided with a conveying opening 21 and a ring-shaped mounting groove 23, the mounting groove 23 passes through the inner wall of the lifting ring 2 and is used to load the film ring 7, the conveying opening 21 is respectively connected with the outer wall of the lifting ring 2 and the mounting groove 23; the film expanding ring 3 covers the conveying opening 21 and the mounting groove 23; the film collapsing frame 61 is located on the inner side of the lifting ring 2.

[0053] The drive assembly 62 is connected to the lifting ring 2. The drive assembly 62 is used to drive the lifting ring 2 to move relative to the film collapse frame 61 along the straight line in the first direction. When the lifting ring 2 moves away from the first direction, the film collapse frame 61 is driven to expand the film of the sheet ring 7. The specific structure of the drive assembly 62 is not described in detail in this embodiment.

[0054] The crimping assembly 4 is located on the outside of the lifting ring 2, the transmission opening 21 is located at one end of the lifting ring 2 facing the crimping assembly 4, one end of the crimping assembly 4 is pivotally connected to the lifting ring 2 along the second direction, and the pressing assembly 5 is located on the side of the crimping assembly 4 away from the lifting ring 2, one end of the pressing assembly 5 is fixedly connected to the base 1, and the other end of the pressing assembly 5 is movably connected to the crimping assembly 4.

[0055] The pressing assembly 5 is used to push the pressing assembly 4 to flip relative to the lifting ring 2 when the lifting ring 2 moves away from the first direction, so that the other end of the pressing assembly 4 is pressed on the side of the expansion ring 3 facing the first direction and contacts the expansion ring 3.

[0056] It should be noted that the first direction can be any direction such as upward, left or forward; the sheet ring 7 includes a blue film for loading the chip and a frame for fixing the blue film, wherein the outer contour of the frame can be rectangular, circular or a combination thereof; the shape of the mounting groove 23 is adapted to the shape of the sheet ring 7; the width of the conveying opening 21 is adapted to the width of the sheet ring 7; the above-mentioned expansion film ring 3 covering the conveying opening 21 and the mounting groove 23 is expressed as that the expansion film ring 3 covers the conveying opening 21 and the main part of the mounting groove 23; the specific movable connection method of the other end of the pressing component 5 and the buckling component 4 can be that a push rod serves as the pressing component 5, one end of which is fixedly connected to the base 1, and the other end is in conflict with the outer surface of the buckling component 4; it can also be a push rod and a slider together as the pressing component 5, wherein one end of the push rod is fixedly connected to the base 1, and the other end of the push rod is pivotally connected to the slider along the second direction, and the slider is slidably connected to the buckling component 4 along the straight line direction where the first direction is located through a slideway arranged along the outer surface of the buckling component 4.

[0057] In this embodiment, the first direction is the upward direction, the second direction is the forward direction, and the lifting ring 2, the film expanding ring 3 and the sheet ring 7 are all placed in the horizontal direction; the main shape of the lifting ring 2, the film expanding ring 3 and the sheet ring 7 is the remaining shape after the opposite ends of the circle are cut off by parallel straight lines; the shape of the film collapse frame 61 is a circular ring that is adapted to the inner wall of the lifting ring 2.

[0058] Combine Figure 3 The expansion ring 3 includes a first arc portion 31 and a second arc portion 32 .

[0059] The first arc portion 31 and the second arc portion 32 are symmetrically fixed in the horizontal direction on the side of the expansion ring 3 facing the first direction. The first arc portion 31 and the second arc portion 32 are spaced apart at opposite ends to form a first avoidance opening 33. It can be understood that the expansion ring 3 is composed of two symmetrical arc-shaped plate-like structures, and the two ends of the two plate-like structures each form an opening, namely the first avoidance opening 33.

[0060] A second avoidance opening 22 is formed on the lifting ring 2 at a position corresponding to the first avoidance opening 33. The second avoidance opening 22 extends through the lifting ring 2 along a straight line along a fourth direction. The fourth direction is perpendicular to the first and second directions, and the bottom surface of the second avoidance opening 22 is located below the bottom surface of the transfer opening 21.

[0061] In this embodiment, the fourth direction is rightward; the first arc portion 31 covers the front end of the transfer opening 21 and the installation groove 23, and the second arc portion 32 covers the rear end of the transfer opening 21 and the installation groove 23. The first avoidance opening 33 and the second avoidance opening 22 facilitate the robot 64 to pass through the expansion ring 3 to load and unload the sheet ring 7.

[0062] Combine Figure 4 The film expansion device further includes a slide rail 63 and a manipulator 64. The slide rail 63 is fixedly disposed on the outside of the lifting ring 2; the manipulator 64 is slidably connected to the slide rail 63 along a straight line in which the fourth direction is located; and the manipulator 64 is used to pull the sheet ring 7 into or out of the mounting groove 23 through the conveying opening 21.

[0063] In this embodiment, the slide rail 63 is fixedly mounted on the front side of the base 1; the manipulator 64 includes a manipulator arm 641 and a clamping portion 642. One end of the manipulator arm 641 is slidably connected to the slide rail 63 in the left-right direction, while the other end of the manipulator arm 641 is fixedly connected to the clamping portion 642. The clamping portion 642 can automatically open and close to clamp the horizontally placed sheet ring 7 in the up-down direction. This embodiment does not limit the specific structure of the clamping portion 642. In this way, the manipulator arm 641 can drive the clamping portion 642 to move between the first avoidance opening 33 and the second avoidance opening 22, so that the manipulator 64 only needs to move in the left-right direction to complete the loading and unloading of the sheet ring 7. This simplifies the operation and reduces the complexity of the movement of the manipulator 64.

[0064] Furthermore, the pressing assembly 4 can be an L-shaped folding plate. When the film expansion ring 3 is pressed, the horizontal portion of the folding plate conflicts with the film expansion ring 3, and the vertical portion of the folding plate is connected to the pressing assembly 5.

[0065] In this embodiment, combined with Figure 5 and Figure 6 The clamping assembly 4 includes a clamping plate 41 and a fine-adjustable pressure rod 42. One end of the clamping plate 41 is pivotally connected to the lifting ring 2 along the second direction. The other end of the clamping plate 41 is threadedly connected to the fine-adjustable pressure rod 42. When clamping the expansion ring 3, the clamping plate 41 contacts the expansion ring 3 through the fine-adjustable pressure rod 42.

[0066] Specifically, a fine-adjustment pressure rod 42 extends through the other end of the pressing plate 41 along a straight line corresponding to the first direction. Two fine-adjustment pressure rods 42 are screws, arranged along the second direction. When the pressing plate 41 presses the film expansion ring 3, the two fine-adjustment pressure rods 42 respectively contact the portions of the first and second arc portions 31, 32 that are suspended above the transfer opening 21. The provision of the fine-adjustment pressure rods 42 allows the degree of pressure of the first and second arc portions 31, 32 on the sheet ring 7 to be adjusted, thereby ensuring uniform film expansion.

[0067] Furthermore, the clamping plate 41 includes a first fixing screw 411, a clamping sub-plate 412, and a supporting sub-plate 413. The clamping sub-plate 412 defines a first waist-shaped hole 414 along a first direction. One end of the first fixing screw 411 passes through the first waist-shaped hole 414 and is threadedly connected to one end of the supporting sub-plate 413 to secure the clamping sub-plate 412 to the supporting sub-plate 413.

[0068] The other end of the supporting sub-plate 413 is pivotally connected to the lifting ring 2 along the second direction. The other end of the pressing sub-plate 412 extends toward the direction of the lifting ring 2 and is threadedly connected to the fine-tuning pressure rod 42 .

[0069] In this embodiment, the number of the first waist-shaped holes 414 and the first fixing screws 411 are both two; the pressing sub-plate 412 is an L-shaped folding plate; when the membrane expansion ring 3 is pressed, the horizontal part of the folding plate is used to support the fine-tuning pressure rod 42 so that the fine-tuning pressure rod 42 is in conflict with the membrane expansion ring 3, and the vertical part of the folding plate is connected to the top pressure assembly 5; the supporting sub-plate 413 is a T-shaped plate, and the bottom end of the supporting sub-plate 413 is pivoted with a rotating shaft 43 along the second direction, and the two ends of the rotating shaft 43 are fixedly connected to a fixed block 44, and the fixed block 44 is fixedly connected to the lifting ring 2, and the two ends of the supporting sub-plate 413 extend to the two first waist-shaped holes 414 respectively, and the two first fixing screws 411 pass through the corresponding first waist-shaped holes 414 and are threadedly connected to the supporting sub-plate 413.

[0070] By setting a first waist-shaped hole 414 and a first fixing screw 411 to fix the pressing sub-plate 412 to the supporting sub-plate 413, the position of the pressing sub-plate 412 relative to the supporting sub-plate 413 along the straight line direction of the first direction can be adjusted, thereby adjusting the degree of pressure of the fine-tuning pressure rod 42 on the first arc portion 31 and the second arc portion 32.

[0071] Furthermore, the film expansion device includes an elastic return member 65. One end of the elastic return member 65 is connected to the pressing assembly 4, and the other end of the elastic return member 65 is fixedly connected to the fixing block 44 through a socket on the fixing block 44. The elastic return member 65 is used to cause the pressing assembly 4 to tilt toward the direction of the pressing assembly 5.

[0072] The elastic reset member 65 can be a torsion spring or a V-shaped spring. In this embodiment, the elastic reset member 65 is a torsion spring, and the number is two.

[0073] Specifically, two torsion springs are located on the front and rear sides of the support sub-plate 413 and are each sleeved onto the rotating shaft 43. One end of the torsion spring is connected to the pressing sub-plate 412, and the other end is fixedly connected to the fixing block 44. The provision of the elastic return member 65 allows the pressing assembly 4 to be tilted away from the film expansion ring 3 when the driving assembly 62 drives the lifting ring 2 in the first direction without manually shifting the pressing assembly 4, thereby improving the degree of automation of the film expansion process.

[0074] Combine Figure 7 and Figure 8 The pressing assembly 5 can be a single pressing rod to push the pressing assembly 4 to flip relative to the lifting ring 2 when the lifting ring 2 moves away from the first direction.

[0075] In this embodiment, the pressing assembly 5 comprises a support rod 51 and a roller 52. One end of the support rod 51 is fixedly connected to the base 1. The roller 52 is in rolling connection with the pressing sub-plate 412 and pivotally connected to the other end of the support rod 51 along the second direction. The roller 52 is configured to push the pressing assembly 4 to flip relative to the lifting ring 2 when the lifting ring 2 moves away from the first direction, so that the other end of the pressing assembly 4 presses against the side of the expansion ring 3 facing the first direction and contacts the expansion ring 3.

[0076] Specifically, a stepped pin 53 is provided at the top of the support rod 51. The stepped pin 53 passes through the first roller 52, the first spacer 54, the support rod 51, the second spacer 54, and the second roller 52 in sequence, facing away from the second direction. A screw is fixedly connected to the rear end of the stepped pin 53 to secure the first roller 52, the first spacer 54, the support rod 51, the second spacer 54, and the second roller 52. The spacer 54 is used to isolate the roller 52 from the support rod 51 to ensure smooth rotation of the roller 52.

[0077] In this embodiment, the roller 52 is a bearing structure. By providing the roller 52 on the support rod 51 and fixedly connected to the pressing assembly 4, the friction between the pressing assembly 5 and the supporting sub-plate 413 can be reduced when the supporting sub-plate 413 moves relative to the support rod 51, thereby ensuring the stability of the pressing assembly 4 in pressing the membrane expansion ring 3.

[0078] Furthermore, the support rod 51 can be fixedly connected to the base 1 by the mounting seat, or can be movably connected to the base 1 by cooperating with other components through the mounting seat. In this embodiment, the pressing assembly 5 further includes: a fixing seat 55 and a second fixing screw 56.

[0079] Specifically, the fixing base 55 is provided with a second waist-shaped hole 555, and one end of the second fixing screw 56 passes through the second waist-shaped hole 555 and is threadedly connected to the base 1 to fix the fixing base 55 to the base 1. The second waist-shaped hole 555 can be opened in any direction along the horizontal direction.

[0080] In this embodiment, the second waist-shaped hole 555 is opened on the fixing seat 55 along the third direction, and the third direction is perpendicular to the first direction and the second direction, that is, the third direction is consistent with the fourth direction, both of which are rightward directions.

[0081] Specifically, there are two second fixing screws 56 and two second waist-shaped holes 555, each of which is provided at opposite ends of the fixing base 55. By providing the second waist-shaped holes 555 on the fixing base 55, the specific position of the pressing assembly 4 pressing against the membrane expansion ring 3 can be adjusted, thereby allowing the pressing assembly 4 to be used with different types of membrane expansion rings 3.

[0082] Furthermore, the pressing assembly 5 further includes a locking member 57 . The locking member 57 is used to fix the support rod 51 and the fixing seat 55 .

[0083] Specifically, a sliding hole 554 is formed on the surface of the fixing seat 55 facing the first direction. The support rod 51 is slidably connected to the fixing seat 55 along the straight line direction of the first direction through the sliding hole 554, and the locking member 57 is movably connected to the fixing seat 55.

[0084] It should be noted that the locking member 57 can be a positioning pin. By opening a plurality of positioning holes along the first direction on the support rod 51 and connecting the plug-in hole on the positioning pin fixing seat 55 with the fixing seat 55, when it is necessary to adjust the position of the support rod 51 relative to the fixing seat 55 in the first direction, it is only necessary to pass the positioning pin through the plug-in hole and connect it with the support rod 51 through the corresponding positioning hole to fix the support rod 51.

[0085] In this embodiment, the fixing seat 55 includes a mounting portion 551 , a supporting portion 552 and a clamping portion 553 .

[0086] The support portion 552 and the gripping portion 553 are both located above the mounting portion 551. The second waist-shaped hole 555 is located on the mounting portion 551. The bottom end of the support portion 552 is fixedly connected to the mounting portion 551, and the top end of the support portion 552 is fixedly connected to one end of the gripping portion 553, so that the gripping portion 553 is suspended in the air.

[0087] The sliding hole 554 may be completely located on the clamping portion 553 , or the front half may be located on the supporting portion 552 while the rear half is located on the clamping portion 553 . This embodiment does not impose any specific limitation on this.

[0088] A clamping opening 556 is defined at one end of the clamping portion 553, facing away from the support portion 552. The clamping opening 556 extends through the clamping portion 553 in the first direction and communicates with the slide hole 554. One end of the locking member 57 passes through the clamping opening 556 and is threadedly connected to the clamping portion 553. The other end of the locking member 57 is located outside the clamping portion 553 and is configured to be pressed against the clamping portion 553.

[0089] In this embodiment, the locking member 57 is a screw. The portion pressed against the gripping portion 553 is the head of the screw; the shank of the screw passes through the gripping portion 553 on one side of the gripping opening 556 and is threadedly engaged with the gripping portion 553 on the other side of the gripping opening 556. By defining the structure of the fixing base 55 and providing the locking member 57, the position of the support rod 51 relative to the fixing base 55 along the linear direction of the first direction can be flexibly adjusted.

[0090] In an optional embodiment, the film expansion device further comprises: a feeding rack. The feeding rack is fixedly arranged on the side of the lifting ring 2 facing away from the third direction. The feeding rack is used to provide a horizontally placed film ring 7.

[0091] The working principle of the film expansion device is as follows:

[0092] First, drive the lifting ring 2 so that the installation groove 23 and the clamping part 642 are on the same horizontal plane. Then, drive the manipulator 64 to move to the left along the slide rail 63 so that the clamping part 642 passes through the first avoidance opening 33 and the second avoidance opening 22, passes through the film expansion ring 3, and reaches the sheet ring 7 on the feed rack. Next, control the clamping part 642 to clamp the right end of the sheet ring 7, and drive the manipulator 64 to move the sheet ring 7 to the right until the sheet ring 7 passes through the conveying opening 21 and is completely moved into the installation groove 23. Immediately thereafter, release the clamping part 642 from the sheet ring 7, and continue to drive the manipulator 64 to move to the right so that the clamping part 642 is disengaged from the first avoidance opening 33, thereby completing the installation of the sheet ring 7.

[0093] Afterwards, the driving lifting ring 2 drives the buckling assembly 4 to move downward. At this time, the buckle plate moves downward relative to the pressing assembly 5. At the same time, the supporting sub-plate 413 drives the buckle plate to flip to the left under the pressure of the pressing assembly 5 until the supporting fine-adjusting pressure rod 42 conflicts with the membrane expansion ring 3. At this time, the vertical part is in a vertical state, and the roller 52 in the pressing assembly 5 is located on the left side of the vertical part and conflicts with the outer surface of the vertical part. Figure 7 After that, the lifting ring 2 continues to move downward, and the buckling plate 41 only moves downward relative to the pressing assembly 5 and remains stationary relative to the membrane expansion ring 3.

[0094] At the same time, as the lifting ring 2 descends, it drives the sheet ring 7 and the film expansion ring 3 downward. When the blue film contacts the top of the film collapse frame 61, the lifting ring 2 continues to move downward, and the film collapse frame 61 begins to expand the film on the sheet ring 7. When the film expansion is completed, the chip on the sheet ring 7 is picked up, and then the lifting ring 2 is driven to drive the buckling assembly 4 to move upward. When it rises to a certain height, the supporting sub-plate 413 presses against the roller 52 under the action of the elastic reset member 65 and begins to flip to the left until the lifting ring 2 moves to the initial position. At this time, the buckling assembly 4 and the top pressing assembly 5 are both located below the second avoidance opening 22. Figure 8 .

[0095] After that, the manipulator 64 is driven to move to the left again, so that the clamping part 642 clamps the expanded film ring 7 and moves it to the left, and takes the expanded film ring 7 away from the lifting ring 2 through the conveying opening 21 until the expanded film ring 7 moves to the feeding rack. After the film ring 7 is placed on the feeding rack, the clamping part 642 releases the clamping of the expanded film ring 7, and then the manipulator 64 is driven to move to the right until the clamping part 642 moves to the right side of the expanded film ring 3, thereby completing the unloading of the film ring 7.

[0096] When the next film ring 7 is expanded, the driving module on the feeding frame drives the expanded film ring 7 to leave the feeding station by lifting or translating, and drives the next film ring 7 to move to the feeding station. In this way, multiple film rings 7 can be expanded in an orderly manner.

[0097] The film expansion device has a simple structure, a high degree of automation, and a fast film expansion speed. It drives the lifting ring 2 to move in the straight line direction of the first direction through the driving component 62, so that the lifting ring 2 can move away from the first direction, so that the film collapse frame 61 can expand the film of the sheet ring 7, and the pressing component 5 can press the outer wall of the pressing component 4, so that the pressing component 4 can flip inward until it is pressed on the side of the film expansion ring 3 facing the first direction and conflicts with the film expansion ring 3. In addition, during the film expansion process, it can avoid the part of the film expansion ring 3 located at the transmission opening 21 from deforming in the first direction, affecting the uniformity of the film expansion.

[0098] Throughout this specification, references to terms such as "some embodiments," "other embodiments," and "desired embodiments" indicate that a particular feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present application. The schematic descriptions of these terms throughout this specification do not necessarily refer to the same embodiment or example.

[0099] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A film expansion device, characterized in that: include: A base (1), a lifting ring (2), a film expansion ring (3), a pressing assembly (4), a top pressing assembly (5), a film collapse frame (61) and a driving assembly (62); The film expansion ring (3) is located on the side of the lifting ring (2) facing the first direction, the film expansion ring (3) is fixedly connected to the lifting ring (2), and the surface of the lifting ring (2) facing the first direction is provided with a conveying opening (21) and a mounting groove (23), the mounting groove (23) passes through the inner side wall of the lifting ring (2) and is used to load the film ring (7), the conveying opening (21) is communicated with the outer side wall of the lifting ring (2) and the mounting groove (23) respectively, the film expansion ring (3) covers the conveying opening (21) and the mounting groove (23), and the film collapse frame (61) is located on the inner side of the lifting ring (2); The driving assembly (62) is connected to the lifting ring (2), and the driving assembly (62) is used to drive the lifting ring (2) to move relative to the film collapse frame (61) along the straight line direction where the first direction is located, and when the lifting ring (2) moves away from the first direction, the film collapse frame (61) is driven to expand the film of the loading ring (7); The pressing assembly (4) is located on the outside of the lifting ring (2), the transmission opening (21) is located at one end of the lifting ring (2) facing the pressing assembly (4), one end of the pressing assembly (4) is pivotally connected to the lifting ring (2) along the second direction, the pressing assembly (5) is located on the side of the pressing assembly (4) away from the lifting ring (2), one end of the pressing assembly (5) is fixedly connected to the base (1), and the other end of the pressing assembly (5) is movably connected to the pressing assembly (4); The pressing assembly (5) is used to push the pressing assembly (4) to flip relative to the lifting ring (2) when the lifting ring (2) moves away from the first direction, so that the other end of the pressing assembly (4) is pressed on the side of the film expansion ring (3) facing the first direction and contacts the film expansion ring (3); The buckling assembly (4) comprises: a buckling plate (41); one end of the buckling plate (41) is pivotally connected to the lifting ring (2) along the second direction, and the buckling plate (41) comprises: a first fixing screw (411), a buckling sub-plate (412) and a supporting sub-plate (413); The pressing sub-plate (412) is an L-shaped folding plate, and the pressing sub-plate (412) is provided with a first waist-shaped hole (414) along the first direction. One end of the first fixing screw (411) passes through the first waist-shaped hole (414) and is threadedly connected to one end of the supporting sub-plate (413) to fix the pressing sub-plate (412) and the supporting sub-plate (413); The other end of the supporting sub-plate (413) is pivotally connected to the lifting ring (2) along the second direction, and the other end of the pressing sub-plate (412) extends in the direction of the lifting ring (2).

2. The film expansion device according to claim 1, characterized in that The film expansion device further comprises: an elastic reset member (65); One end of the elastic reset member (65) is connected to the buckling assembly (4), and the other end of the elastic reset member (65) is connected to the lifting ring (2); The elastic reset member (65) is used to drive the pressing assembly (4) to flip in the direction of the pressing assembly (5).

3. The film expansion device according to claim 1, characterized in that The buckling assembly (4) further includes: a fine-adjusting pressure rod (42); The other end of the buckling plate (41) is threadedly connected to the fine-adjusting pressure rod (42); When the buckling plate (41) buckles the membrane expansion ring (3), it comes into contact with the membrane expansion ring (3) through the fine-adjusting pressure rod (42).

4. The film expansion device according to claim 3, characterized in that The other end of the buckling sub-plate (412) is threadedly connected to the fine-adjusting pressure rod (42).

5. The film expansion device according to claim 1, characterized in that The pressing assembly (5) comprises: a support rod (51) and a roller (52); One end of the support rod (51) is fixedly connected to the base (1); the roller (52) is rollingly connected to the pressing assembly (4) and is pivotally connected to the other end of the support rod (51) along the second direction; the roller (52) is used to push the pressing assembly (4) to flip relative to the lifting ring (2) when the lifting ring (2) moves away from the first direction, so that the other end of the pressing assembly (4) is pressed on the side of the film expansion ring (3) facing the first direction and contacts the film expansion ring (3).

6. The film expansion device according to claim 5, characterized in that The pressing assembly (5) further comprises: a fixing seat (55) and a second fixing screw (56); The fixing seat (55) is provided with a second waist-shaped hole (555), and one end of the second fixing screw (56) passes through the second waist-shaped hole (555) and is threadedly connected to the base (1) to fix the fixing seat (55) and the base (1).

7. The film expansion device according to claim 6, characterized in that: The pressing assembly (5) further includes: a locking member (57); A sliding hole (554) is provided on the surface of the fixing seat (55) facing the first direction, and the support rod (51) is slidably connected to the fixing seat (55) along the straight line direction of the first direction through the sliding hole (554). The locking member (57) is movably connected to the fixing seat (55), and the locking member (57) is used to fix the support rod (51) and the fixing seat (55).

8. The film expansion device according to claim 7, characterized in that: The fixing seat (55) comprises: a mounting portion (551), a supporting portion (552) and a holding portion (553); The supporting portion (552) and the holding portion (553) are both located on the side of the mounting portion (551) facing the first direction, the second waist-shaped hole (555) is located on the mounting portion (551), one end of the supporting portion (552) is fixedly connected to the mounting portion (551), and the other end of the supporting portion (552) is fixedly connected to one end of the holding portion (553), so that the holding portion (553) is in a suspended state; The sliding hole (554) is located on the clamping portion (553), and a clamping opening (556) is provided at one end of the clamping portion (553) away from the supporting portion (552). The clamping opening (556) passes through the clamping portion (553) along the first direction and is connected to the sliding hole (554). One end of the locking member (57) passes through the clamping opening (556) and is threadedly connected to the clamping portion (553). The other end of the locking member (57) is located outside the clamping portion (553) and is used to be squeezed with the clamping portion (553).

9. The film expansion device according to claim 6, characterized in that: The membrane expansion ring (3) comprises: a first circular arc portion (31) and a second circular arc portion (32); The first circular arc portion (31) and the second circular arc portion (32) are symmetrically fixed on one side of the membrane expansion ring (3) facing the first direction, and the opposite ends of the first circular arc portion (31) and the second circular arc portion (32) are spaced apart to form a first avoidance opening (33); The lifting ring (2) is provided with a second avoidance opening (22) at a position corresponding to the first avoidance opening (33), and the second avoidance opening (22) penetrates the lifting ring (2) along a straight line direction in which a fourth direction is located, and the fourth direction is perpendicular to the first direction and the second direction.

10. The film expansion device according to claim 9, characterized in that: The film expansion device further comprises: a slide rail (63) and a manipulator (64); The slide rail (63) is fixedly arranged on the outside of the lifting ring (2), and the manipulator (64) is slidably connected to the slide rail (63) along the straight line direction where the fourth direction is located. The manipulator (64) is used to pull the sheet ring (7) into or push it out of the installation groove (23) through the conveying opening (21).

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