Blank cutting device for keycap injection molding production

Abstract

The invention relates to the technical field of keycap production and processing, in particular to a blank shearing device for keycap injection molding production, which comprises a base and a placing mechanism, the placing mechanism is arranged on the base, the placing mechanism comprises a placing box, guide rods I, a partition plate and a limiting block group, and the guide rods I are connected to the base in a front-back symmetrical sliding manner; a containing box is jointly connected between the guide rods I. The partition plates divide the interior of the containing box into a plurality of symmetrical independent spaces, and the periphery of each independent space is connected with a limiting block set. According to the key cap cutting device, the placing mechanism, the rotating mechanism, the electric push rod II and the rack I are installed, the electric push rod III is driven, the cutter set rotates downwards to cut off the other two side lines of the key cap, the cutter set moves upwards to fix the sliding plate, and finally the key cap is taken down from the disc, so that the work of cutting off blanks on the four side lines of the key cap is completed; in this way, the device can accurately cut off blanks of a plurality of keycaps at a time, the working efficiency is greatly improved, and a large amount of time is saved.

Description

Technical Field

[0001] The invention relates to the technical field of key cap production and processing, and in particular to a blank shearing device for key cap injection molding production. Background Art

[0002] The keycap is the cover on the top of each key on the keyboard. It not only determines the visual appearance of the keyboard, but also directly affects the feel and experience of typing. The keycap is usually made of plastic materials such as ABS, POM, PBT, etc. The surface can be printed with characters or laser etching technology can be used to ensure that the characters are durable and do not fade. Different keycap shapes, heights and materials can bring different typing feelings. It is an important component when personalizing a keyboard.

[0003] According to the patent authorization publication number CN216182432U, the public authorization date is 2022-04-05, a blank impact shearing device for keycap injection molding production includes: a main body component, the main body component includes a distribution box, a workbench, a guide column, a fixed plate and a storage block; a cutting mechanism, the cutting mechanism includes a hydraulic cylinder, a support plate, a cutting block, a cutting knife group, a first spring, a limit block and a conical rubber block; this invention drives the cutting block to move by the hydraulic cylinder, and the moving cutting block drives the cutting knife group to cut the blank rod and the keycap body, and the moving cutting block drives the conical rubber block to cut the outer surface of the blank rod. The side wall is extruded, and then the first spring is compressed through the limit block, and the blank rod is squeezed and fixed between the two conical rubber blocks by the compressed first spring, so that after the cutting is completed, the blank rod and the keycap body are quickly separated by the moving cutting block, thereby improving the work efficiency during cutting, reducing labor costs, and increasing production efficiency. Although this device can fix the blank rod and accurately and quickly cut the blank rod and the keycap body, this device can only cut one blank rod and the keycap body at a time. Therefore, from the perspective of the number of single processing, the cutting efficiency of this device still needs to be improved.

[0004] Therefore, we are in urgent need of an efficient blank shearing device for keycap injection molding production. Summary of the invention

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a blank shearing device for keycap injection molding production.

[0006] The technical solution is: a blank shearing device for keycap injection molding production, including a base, a placing mechanism, a shearing mechanism, a rotating mechanism, an electric push rod II, a rack I and a pressing mechanism. The base is provided with a placing mechanism, and the placing mechanism includes a placing box, a guide rod I, a partition and a limit block group. The front and rear sides of the base are symmetrically and slidingly connected with the guide rod I, and the guide rods I are commonly connected with the placing box. The interior of the placing box is connected with a partition, and the partition divides the interior of the placing box into at least six symmetrical independent spaces. The interior of each independent space is provided with a limit block group, the limit block group is high on the four sides and low in the middle, and the inclined surface on the limit block group is inclined from the four sides to the middle, and the middle of the limit block group is The top of the keycap can be matched with the upper side of the keycap, the interior of the placement box is provided with placement slots with the same number as the independent spaces separated by the partition, the base is provided with a shearing mechanism, the interior of the placement slot is provided with a rotating mechanism, the rotating mechanism includes a swivel, a gear I and a rubber ring, the interior of the placement slot is rotatably connected with a swivel, the lower part of the swivel is connected with a gear I, the upper part of the swivel is connected with a rubber ring, an electric push rod II is installed on the right part of the placement box, the telescopic end of the electric push rod II is connected with a rack I, the rack I is located between the front and rear symmetrical gears I, the rack I is meshed with all the gears I, and a pressing mechanism is provided on the base, and the pressing mechanism is located above the placement mechanism.

[0007] Furthermore, the limit block group is an inclined panel with a higher top and a lower bottom.

[0008] Furthermore, the placement mechanism also includes a fixed rod I, a disc, an electric push rod I, a slider and a rotating plate. The base is connected to the same number of fixed rods I as the placement slots, the center points of the placement slots and the center points of the fixed rods I are located on the same vertical line, the tops of the fixed rods I are connected to the discs, the base is symmetrically installed with electric push rods I, the left and right parts of the base are both slidably connected to the sliders, the sliders are respectively connected to the telescopic ends of the electric push rods close to themselves, the sliders are rotatably connected to the rotating plates, and the ends of the rotating plates that are not connected to the sliders are connected to the placement box.

[0009] Furthermore, the shearing mechanism includes a rotating shaft, a rotating drum and a cutting knife group. The left and right parts of the base are rotatably connected to the rotating shaft through bearings. The rotating shaft is connected to a rotating drum. The rotating drum is connected to three cutting knife groups, and the thickness of the middle cutting knife group is greater than that of the cutting knife groups on both sides.

[0010] Furthermore, the pressing mechanism includes a guide rod II, a sliding plate, a cylinder and a fixed rod II. The front part of the base is symmetrically connected to the guide rod II, and a sliding plate is slidably connected to the guide rod II. A cylinder is installed on the base, and the telescopic end of the cylinder is connected to a nearby sliding plate. The sliding plate is connected to the same number of fixed rods II as the fixed rod I, and the positions of the fixed rods II correspond to the positions of the fixed rods I. The bottom ends of the fixed rods II are connected to discs.

[0011] Furthermore, it also includes a collection mechanism placement plate, a connecting rod I, a rack II, an electric push rod III and a gear II. The front and rear sides of the base are symmetrically connected with placement plates, the placement plate is L-shaped, and a connecting rod I is placed on the placement plate. The left and right ends of the connecting rod I are connected to the rack II. The front and rear sides of the base are symmetrically installed with electric push rods III, and the telescopic ends of the electric push rod III are connected to the connecting rod I on the same side. The front and rear ends of the rotating shaft are connected with gear II, and gear II is meshed with the adjacent rack II.

[0012] Furthermore, it also includes an inclined plate, and the front and rear parts of the storage box are both slidably connected with the inclined plate. The upper side of the inclined plate is an inclined surface, and the inclined plate is provided with a sliding groove that can fit with the fixed rod I, and the number of the sliding grooves corresponds to the fixed rod I24 on the same side.

[0013] Furthermore, the collecting mechanism also includes a screw rod, a connecting rod II and a guide rod III. The front and rear ends of the rotating shaft are connected to the screw rods, the front and rear sides of the base are connected to the guide rod III, the guide rod III is slidably connected to the connecting rod II, the upper part of the connecting rod II is threadedly connected to the screw rod, and the inclined plate is slidably connected to the connecting rod II.

[0014] The beneficial effects are:

[0015] 1. The present invention installs a placement mechanism, a rotating mechanism, an electric push rod II and a rack I, drives the electric push rod III, causes the cutter group to rotate downward to cut the other two side lines of the keycap, moves up and fixes the sliding plate, and finally removes the keycap from the disc, thereby completing the cutting of the blanks on the four side lines of the keycap. This enables the device to accurately cut the blanks of multiple keycaps at one time, greatly improving work efficiency and saving a lot of time.

[0016] 2. The present invention installs a limit block group, and the limit block group around the independent space in the placement box is designed to be an inclined panel with a higher top and a lower bottom. In this way, when the keycap is placed in and contacts with the limit block group, the limit block group will automatically correct the position of the keycap to ensure that the edge lines on the front and rear sides of the keycap are aligned with the downward movement route of the cutter group. This not only ensures the smooth progress of the subsequent cutting work, but also effectively improves the qualified rate of the keycap. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the base, placement mechanism and shearing mechanism of the present invention.

[0019] Figure 3 It is a cross-sectional view of a placement box of the present invention.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the placement box, rotating mechanism, electric push rod II and rack I of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating mechanism of the present invention.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the pressing mechanism of the present invention.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the guide rod II, the sliding plate, the rotating disk and the L-shaped rod of the present invention.

[0024] Figure 8 It is a three-dimensional structural schematic diagram of the rotating shaft, rack II, electric push rod III and gear II of the present invention.

[0025] Fig. 9 It is a three-dimensional structural schematic diagram of the screw rod, connecting rod II, guide rod III and inclined plate of the present invention.

[0026] The names and serial numbers of the parts in the figure are: 1-base, 2-placing mechanism, 21-placing box, 221-guide rod I, 22-partition, 23-placing groove, 24-fixed rod I, 241-disc, 242-limit block group, 25-electric push rod I, 26-slider, 27-rotating plate, 3-cutting mechanism, 31-rotating shaft, 32-rotating drum, 33-cutter group, 4-rotating mechanism, 41-swivel ring, 42-gear I, 43-rubber ring, 5-electric push rod II, 51-rack I, 6-pressing mechanism, 61-guide rod II, 62-sliding plate, 63-cylinder, 64-fixed rod II, 7-collecting mechanism, 71-placing plate, 72-connecting rod I, 73-rack II, 74-electric push rod III, 75-gear II, 76-screw, 77-connecting rod II, 78-guide rod III, 79-inclined plate. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0028] Embodiment 1: A blank shearing device for keycap injection molding production, such as Figure 1-Figure 9As shown, it includes a base 1, a placement mechanism 2, a shearing mechanism 3, a rotating mechanism 4, an electric push rod II 5, a rack I 51 and a pressing mechanism 6. The base 1 is provided with a placement mechanism 2, and the placement mechanism 2 includes a placement box 21, a guide rod I 221, a partition 22 and a limit block group 242. The front and rear sides of the base 1 are symmetrically connected with guide rods I 221 in an upward and downward sliding manner. The guide rods I 221 are commonly connected with the placement box 21. The interior of the placement box 21 is connected with a partition 22. The partition 22 divides the interior of the placement box 21 into at least six symmetrical independent spaces, each of which is independent. The space is provided with a limit block group 242, which is high on all sides and low in the middle. The inclined surface on the limit block group 242 is inclined from all sides to the middle, and the middle of the limit block group 242 can fit with the upper side of the keycap. When the keycap is placed in and contacts the limit block group 242, the limit block group 242 keycap will slide along the inclined surface on the limit block group 242 to the middle of itself and fit with the middle of the limit block group 242, thereby ensuring that the edge lines on both sides of the keycap are aligned with the downward movement route of the cutter group 33, which not only ensures the smoothness of the subsequent cutting work, but also ensures the smoothness of the subsequent cutting work. The corrected keycaps will fall on the rubber ring 43. The placement box 21 is provided with placement slots 23 having the same number as the independent spaces separated by the partition 22. The base 1 is provided with a shearing mechanism 3. The placement slots 23 are provided with a rotating mechanism 4. The rotating mechanism 4 includes a swivel 41, a gear Ⅰ42 and a rubber ring. The placement slots 23 are rotatably connected with the swivel 41. The lower part of the swivel 41 is connected with the gear Ⅰ42. The upper part of the swivel 41 is connected with the rubber ring. The right part of the placement box 21 is provided with Electric push rod Ⅱ5, the telescopic end of electric push rod Ⅱ5 is connected with rack Ⅰ51, rack Ⅰ51 is located between the front and rear symmetrical gears Ⅰ42, rack Ⅰ51 is meshed with all gears Ⅰ42, driving electric push rod Ⅱ5, electric push rod Ⅱ5 will move right with rack Ⅰ51, gear Ⅰ42 meshed with it will rotate, thereby driving the rotating ring 41 to rotate in the placement groove 23, and the rubber ring 43 will also rotate together, thereby rotating the key cap placed on the rubber ring 43, and the base 1 is provided with a pressing mechanism 6, which is located above the placement mechanism 2.

[0029] like Figure 4 and Figure 6As shown, the placement mechanism 2 also includes a fixing rod Ⅰ24, a disc 241, an electric push rod Ⅰ25, a slider 26 and a rotating plate 27. The base 1 is connected with the same number of fixing rods Ⅰ24 as the placement slots 23. The center point of the placement slot 23 and the center point of the fixing rod Ⅰ24 are located on the same vertical line. The top of the fixing rod Ⅰ24 is connected with a disc 241. The disc 241 is made of rubber with a rough surface, which can increase the friction between the keycap and the keycap to ensure that the keycap is placed more firmly. The electric push rods Ⅰ25 are symmetrically installed on the base 1 by bolts. Rod Ⅰ25, the left and right parts of the base 1 are slidably connected with sliders 26, the slider 26 is connected to the telescopic end of the electric push rod close to itself, the slider 26 is rotatably connected with a turn plate 27, the end of the turn plate 27 not connected to the slider 26 is connected to the placement box 21, the electric push rod Ⅰ25 is driven, and the two telescopic ends of the driving electric push rod Ⅰ25 will respectively push the slider 26 to move along the left and right parts of the base 1. As the slider 26 moves, the turn plate 27 on the slider 26 rotates accordingly, and drives the placement box 21 and the inclined plate 79 to move downward together.

[0030] like Figure 3 As shown, the shearing mechanism 3 includes a rotating shaft 31, a rotating cylinder 32 and a cutting knife group 33. The left and right parts of the base 1 are rotatably connected to the rotating shaft 31 through a bearing. The rotating shaft 31 is connected to the rotating cylinder 32. The rotating cylinder 32 is connected to three cutting knife groups 33. The thickness of the middle cutting knife group 33 is greater than that of the cutting knife groups 33 on both sides, so that the keycaps symmetrically placed front and back can be accurately cut close to the edge lines.

[0031] like Figure 6 and Figure 7 As shown, the pressing mechanism 6 includes a guide rod II 61, a sliding plate 62, a cylinder 63 and a fixed rod II 64. The front part of the base 1 is symmetrically connected with the guide rod II 61, and the sliding plate 62 is slidably connected to the guide rod II 61. The cylinder 63 is installed on the base 1, and the telescopic end of the cylinder 63 is connected to the adjacent sliding plate 62. The sliding plate 62 is connected with the same number of fixed rods II 64 as the fixed rod I 24, and the positions of the fixed rods II 64 correspond to the positions of the fixed rods I 24. When the keycap is placed upside down in the limit block group 242, the keycap will slide along the inclined surface on the limit block group 242 toward the middle of the limit block group 242, and the upper side surface of the keycap will fit with the middle of the limit block group 242, thereby ensuring that the edge lines on the front and rear sides of the keycap are aligned with the downward movement route of the cutter group 33, which not only ensures the smooth progress of the subsequent cutting work, but also improves the qualified rate of the keycap.

[0032] like Figure 8 and Fig. 9As shown, the collecting mechanism 7 also includes a placement plate 71, a connecting rod I 72, a rack II 73, an electric push rod III 74, a gear II 75, a screw rod 76, a connecting rod II 77, a guide rod III 78 and an inclined plate 79. The front and rear sides of the base 1 are symmetrically connected with the placement plate 71, the placement plate 71 is L-shaped, a connecting rod I 72 is placed on the placement plate 71, and the left and right ends of the connecting rod I 72 are connected with racks II 73. The front and rear sides of the base 1 are symmetrically connected with electric push rods III 74, and the telescopic ends of the electric push rods III 74 are connected to the connecting rod I 72 on the same side. The front and rear ends of the rotating shaft 31 are connected with gears II 75, and the gears II 75 are meshed with the adjacent racks II 73. The front and rear parts of the placement box 21 are slidably connected with inclined plates 79. The upper side surface of the inclined plate 79 is an inclined surface, and a slide groove that can fit with the fixed rod I 24 is opened on the inclined plate. The number corresponds to the fixed rod Ⅰ24 on the same side. The front and rear ends of the rotating shaft 31 are connected with screw rods 76, and the front and rear sides of the base 1 are connected with guide rods III78. A connecting rod Ⅱ77 is slidably connected to the guide rod Ⅲ78. The upper part of the connecting rod Ⅱ77 is threadedly connected to the screw rod 76, and the inclined plate 79 is slidably connected to the connecting rod Ⅱ77 to drive the electric push rod Ⅲ74. The telescopic end of the electric push rod Ⅲ74 will drive the rack Ⅱ73 to move upward. As the rack Ⅱ73 moves upward, the connecting rod Ⅰ72 will also move upward along the placement plate 71. When the rack Ⅱ73 moves upward, it will rotate the gear Ⅱ75 counterclockwise, so that the gear Ⅱ75 can drive the rotating shaft 31 to rotate together. When the rotating shaft 31 rotates, the rotating drum 32 and the cutting knife group 33 connected thereto also rotate accordingly, so that the cutting knife group 33 can contact the edge lines on the front and rear sides of the keycap and cut off the blank remaining on the edge line of the keycap.

[0033] When the device is to be used, firstly, the keycap which has been cut once but still has some blanks left around is inverted into the independent space of the placement box 21. The limit block group 242 in the independent space is high around and low in the middle. The inclined surface on the limit block group 242 is inclined from the surrounding to the middle. When the keycap is inverted and placed in the limit block group 242, the keycap will slide along the inclined surface on the limit block group 242 to the middle of the limit block group 242, and the upper side of the keycap will fit with the middle of the limit block group 242, so as to ensure that the edge lines on the front and rear sides of the keycap are aligned with the downward movement route of the cutter group 33, which not only ensures The corrected keycap will fall onto the rubber ring 43, driving the cylinder 63. The telescopic end of the cylinder 63 will move the sliding plate 62 downward, thereby moving the fixing rod II 64 downward together. The disc 241 on the fixing rod II 64 will contact the bottom surface of the keycap and apply force to the bottom surface of the keycap, thereby fixing the keycap. Then the electric push rod I 25 will be driven. The telescopic ends of the two driving electric push rods I 25 will respectively push the slider 26 to move along the left and right parts of the base 1. As the slider 26 moves, the rotating plate 27 on the slider 26 rotates accordingly, and drives the slider 26 to move along the left and right parts of the base 1. The placing box 21 moves down together with the inclined plate 79, and at this time, the guide rod I 221 moves down on the base 1 accordingly, and the keycap placed in the independent space of the placing box 21 will lose the support of the limit block group 242 and fall onto the disc 241 of the fixing rod I 24. In the process of the placing box 21 moving down, the cylinder 63 also moves down with the fixing rod II 64, so as to ensure that the keycap will not be displaced during this process. At this time, the keycap is located between the fixing rod I 24 and the disc 241 of the fixing rod II 64, and is fixed by the two discs 241. The surface of the disc 241 can increase the friction between the keycap and the fixing rod II 64, ensuring The keycap is placed more firmly; next, the electric push rod III74 is driven, and the telescopic end of the electric push rod III74 will drive the rack II73 to move upward. As the rack II73 moves upward, the connecting rod I72 will also move upward along the placement plate 71. When the rack II73 moves upward, it will rotate the gear II75 counterclockwise, so that the gear II75 can drive the rotating shaft 31 to rotate together. When the rotating shaft 31 rotates, the rotating drum 32 and the cutting knife group 33 connected thereto also rotate accordingly, so that the cutting knife group 33 can contact the edge lines on the front and back sides of the keycap and cut off the blank remaining on the edge line of the keycap, so that the edge line of the keycap becomes smooth and beautiful.

[0034] At the same time, the screw rod 76 connected to the rotating shaft 31 also rotates with the rotation of the rotating shaft 31, so that the connecting rod II 77 approaches the placement box 21 along the guide rod III 78, and the inclined plate 79 is also carried to slide on the placement box 21 and approaches the middle part of the placement box 21. When the connecting rod II 77 no longer approaches the placement box 21, the inner end of the slide groove on the inclined plate 79 fits with the fixed rod I 24, and the blank cut by the cutting group 33 will slide out to both sides of the device along the inclined surface on the inclined plate 79, avoiding the cut blank falling into the inside of the device and being difficult to clean.

[0035] After the shearing work is completed, the electric push rod III 74 is driven to reset the shearing mechanism 3 and the collecting mechanism 7, the cylinder 63 is driven to reset the sliding plate 62, and then the electric push rod I 25 is driven to reset the slider 26, thereby driving the placement mechanism 2 to reset. In this process, the key cap will contact the rubber ring 43 again, and be moved up and separated from the disc 241 by the rubber ring 43, and return to the initial position. At this time, the electric push rod II 5 is driven, and the telescopic end of the electric push rod II 5 will move right with the rack I 51. When the rack I 51 moves right, the gear I 42 meshing with it starts to rotate, thereby driving the rotating ring 41 to rotate in the placement groove 23, and the rubber ring 43 will also rotate together. After the key cap is rotated 180 degrees by the rubber ring 43, the electric push rod II 5 will Stop moving the rack I51, move the sliding plate 62 downward to clamp and fix the keycap, repeat the downward moving step of the above-mentioned placing mechanism 2, so that the rotated keycap falls on the disk 241, and then drive the electric push rod III74 to rotate the cutter group 33 downward and cut the other two side lines of the keycap, and move the inclined plate 79 to the middle. After completing the cutting work, move up and fix the sliding plate 62, and finally remove the keycap from the disk 241. This completes the cutting of the blanks on the four side lines of the keycap, which enables the device to accurately cut the blanks of multiple keycaps at one time, greatly improving work efficiency, saving a lot of time, and increasing profits. For subsequent work, repeat the above steps. After completing the work, close the device.

[0036] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

Claims

1. A blank shearing device for keycap injection molding production, comprising: Base (1); A placement mechanism (2) is arranged on the base (1), and the placement mechanism (2) is used to place the key cap; A shearing mechanism (3) is arranged on the base (1), and the shearing mechanism (3) is used to shear off the keycap blank; A pressing mechanism (6) is arranged on the base (1), and the pressing mechanism (6) is used to fix the key cap. The pressing mechanism (6) is located above the placing mechanism (2); Characterized in that the placement mechanism (2) comprises: Guide rods I (221), the guide rods I (221) being two in number and symmetrically slidably connected to the front and rear sides of the base (1); A placement box (21) is connected between the two guide rods I (221); A partition (22) is connected to the interior of the placement box (21), the partition (22) divides the interior of the placement box (21) into at least six symmetrical independent spaces, and the interior of the placement box (21) is provided with placement slots (23) having the same number as the independent spaces separated by the partition (22); A limit block group (242), each of the independent spaces is connected to the limit block group (242); A rotating mechanism (4) is arranged inside the placement groove (23), and the rotating mechanism (4) comprises: rotating rings (41), the number of the rotating rings (41) is consistent with the number of the placement grooves (23), and the rotating rings (41) are respectively rotatably connected inside the placement grooves (23); Gear I (42), the lower part of the rotating ring (41) is connected with gear I (42); A rubber ring (43), the upper part of the rotating ring (41) is connected with a rubber ring (43); An electric push rod II (5) is installed on the right side of the storage box (21); The rack I (51) is connected to the telescopic end of the electric push rod II (5), and the rack I (51) is located between the front and rear symmetrical gears I (42), and the rack I (51) is meshed with all the gears I (42).

2. A blank shearing device for keycap injection molding production as claimed in claim 1, characterized in that: The limit block group (242) is high at the periphery and low at the middle, the inclined surface on the limit block group (242) is inclined from the periphery to the middle, and the middle of the limit block group (242) can fit with the upper side surface of the key cap.

3. A blank cutting device for keycap injection molding production as claimed in claim 2, characterized in that: The placing mechanism (2) further comprises: Fixed rods I (24), the number of the fixed rods I (24) is the same as the placement slots (23), all of which are connected to the base (1), and the center points of the fixed rods I (24) and the center points of the placement slots (23) are located on the same vertical line; A disc (241), the top end of each of the fixing rods I (24) is connected with a disc (241); Electric push rods I (25), two of which are symmetrically mounted on the base (1); Slide blocks (26), the number of the slide blocks (26) being two, respectively connected in a sliding manner to the left and right parts of the base (1), and the slide blocks (26) being connected to the telescopic end of the electric push rod I (25) close to the slide blocks; The rotating plate (27) is rotatably connected to the slider (26), and the end of the rotating plate (27) not connected to the slider (26) is connected to the placement box (21).

4. A blank cutting device for keycap injection molding production as claimed in claim 3, characterized in that: The shearing mechanism (3) comprises: Rotating shafts (31), there are two rotating shafts (31), and the rotating shafts (31) are rotatably connected to the left and right parts of the base (1) through bearing seats; A rotating drum (32), each of the rotating shafts (31) is connected with a rotating drum (32); A cutting knife group (33), wherein the rotating drum (32) is connected with a cutting knife group (33), and the thickness of the cutting knife in the middle of the cutting knife group (33) is greater than the cutting knives at the two sides.

5. A blank cutting device for keycap injection molding production as claimed in claim 4, characterized in that: The pressing mechanism (6) comprises: A guide rod II (61) symmetrically connected to the front portion of the base (1); A sliding plate (62) slidably connected to the guide rod II (61); A cylinder (63) is symmetrically mounted on the rear of the base (1), and the telescopic end of the cylinder (63) is connected to a nearby sliding plate (62); Fixed rods II (64), the number of the fixed rods II (64) is the same as that of the fixed rods I (24), both are installed on the sliding plate (62), and the positions of the fixed rods II (64) correspond to the positions of the fixed rods I (24), and the bottom ends of the fixed rods II (64) are connected to a disc (241).

6. A blank cutting device for keycap injection molding production as claimed in claim 5, characterized in that: Also includes: A collecting mechanism (7) is arranged on the base (1), and the collecting mechanism (7) comprises: Placement plates (71), wherein there are four placement plates (71) symmetrically connected to the front and rear sides of the base (1), two placement plates (71) are connected to the same side of the base (1), and the placement plates (71) are L-shaped; Connecting rods I (72), two connecting rods I (72) are respectively placed on the placement plate (71) at the front and rear sides; Rack II (73), there are four racks II (73), which are respectively connected to the two ends of each connecting rod I (72); Electric push rods III (74), two of which are symmetrically mounted on the front and rear sides of the base (1), two of which are connected to the same side of the base (1), and telescopic ends of the electric push rods III (74) are connected to the connecting rod I (72) on the same side; Gear II (75), there are four gears II (75), which are respectively connected to the two ends of each of the rotating shafts (31), and each of the gears II (75) is meshed with the adjacent rack II (73).

7. A blank cutting device for keycap injection molding production as claimed in claim 6, characterized in that: Also includes: Inclined plates (79), there are two inclined plates (79), which are symmetrically slidably connected to the placement box (21), the upper side of the inclined plate (79) is an inclined surface, and the inclined plate (79) is provided with a sliding groove that can fit with the fixing rod I (24), and the number of the sliding grooves corresponds to the fixing rod I 24 on the same side.

8. A blank cutting device for keycap injection molding production as claimed in claim 7, characterized in that: The collecting mechanism (7) further comprises: Screw rods (76), four of which are connected to two ends of the rotating shaft (31) respectively; Guide rods III (78), there are four guide rods III (78), which are symmetrically connected to the front and rear sides of the base (1), and two guide rods III (78) are connected to the same side of the base (1); Connecting rods II (77), there are two connecting rods II (77), which are respectively slidably connected to the guide rods III (78) on the same side, the upper part of the connecting rods II (77) is threadedly connected to the screw rod (76), and the inclined plate (79) is slidably connected to the connecting rods II (77).

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