Needle wheel counting and cutting mechanism

Abstract

The utility model discloses a pinwheel counting and cutting mechanism which comprises a carrier tape track, a counting assembly, a carrier tape feeding block and a cutting assembly. The carrier tape track is provided with a guide groove, the guide groove extends in the movement direction of the carrier tape, and the carrier tape moves along the guide groove. The counting assembly comprises a pinwheel, the pinwheel is rotatably arranged at the feeding end of the carrier tape track, and pinheads matched with positioning holes in the edge of one side of a carrier tape are distributed on the surface of the peripheral side of the pinwheel. The tail end of the carrier tape feeding block is in butt joint with the feeding end of the carrier tape track at intervals, the pinwheel is located between the carrier tape feeding block and the carrier tape track, and the carrier tape feeding block is also provided with the guide groove; the cutting assembly comprises a cutter, a cutter feeding groove is formed in the carrier tape track, a carrier tape passes through the position above the cutter feeding groove, and the cutter can stretch into the cutter feeding groove to cut the carrier tape.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of carrier tape winding machine especially relates to a pin wheel counting cutting mechanism. BACKGROUND

[0002] Carrier tape refers to a kind of strip-shaped product applied in the field of electronic packaging, it has specific thickness, and equidistantly distributed hole (also called pocket) for holding electronic components and positioning hole for indexing positioning in its length direction.

[0003] Carrier tape needs to be wound into reel after production with isolation paper, to facilitate the subsequent filling of electronic components, the existing mode is to synchronously transport carrier tape and isolation paper to composite station to operate, carrier tape is usually counted when feeding, to improve the precision of carrier tape feeding, however, the counting structure of the prior art has poor running stability when counting, leading to large counting deviation. UTILITY MODEL CONTENT

[0004] In order to overcome the deficiencies of the prior art, the utility model aims at providing a pin wheel counting cutting mechanism to solve the technical problem of large counting deviation in the prior art.

[0005] The utility model adopts the following technical scheme: a pin wheel counting cutting mechanism, including carrier tape track, counting component, carrier tape feeding block and cutting assembly;

[0006] The carrier tape track is provided with guide groove, the guide groove extends along the movement direction of carrier tape, and carrier tape moves along the guide groove;

[0007] The counting component includes pin wheel, the pin wheel is rotatably arranged at the feeding end of the carrier tape track, and the peripheral surface of the pin wheel is distributed with needle head matched with the positioning hole of one side edge of carrier tape;

[0008] The end of the carrier tape feeding block is butt-jointed with the feeding end of the carrier tape track, the pin wheel is located between the carrier tape feeding block and the carrier tape track, and the guide groove is also arranged on the carrier tape feeding block;

[0009] The cutting assembly includes cutter, the carrier tape track is provided with tool approach groove, carrier tape passes above the tool approach groove, and the cutter can be inserted into the tool approach groove to cut carrier tape.

[0010] In a possible implementation, the upper surface of the pin wheel is flush with the bottom surface of the guide groove.

[0011] In a possible implementation, the top of the feeding end of the carrier tape track is provided with isolation paper pressing plate, the isolation paper pressing plate is provided with guide inclined surface, and isolation paper enters the guide groove along the guide inclined surface and combines with carrier tape.

[0012] In a possible implementation, the counting assembly comprises a driving motor and an encoder, the encoder is connected with the driving motor through a synchronous wheel and a synchronous belt, and a transmission shaft of the needle wheel is connected with a driving shaft of the driving motor.

[0013] In a possible implementation, the counting assembly further comprises a secondary wheel, the secondary wheel is coaxially arranged with the needle wheel, and the secondary wheel is used to contact with the other side edge of the carrier tape.

[0014] In a possible implementation, the cutting assembly further comprises a cylinder, a mounting plate is arranged at a driving end of the cylinder, and the cutter is arranged on the mounting plate, and the cylinder can drive the cutter to approach or move away from the carrier tape track.

[0015] In a possible implementation, a guide roller is further arranged at a feeding end of the carrier tape feeding block, and an upper surface of the guide roller is flush with a bottom surface of the guide groove.

[0016] In a possible implementation, a first pressing plate is arranged at a top of the carrier tape feeding block, and the first pressing plate covers the guide groove and part of the needle wheel on the carrier tape feeding block.

[0017] In a possible implementation, an avoiding hole is arranged at one end of the first pressing plate close to the needle wheel, and the avoiding hole is used to avoid the needle on the needle wheel.

[0018] In a possible implementation, a second pressing plate is further arranged at a top of the carrier tape track, the second pressing plate covers part of the guide groove, and the second pressing plate is arranged close to an end of the carrier tape track.

[0019] Compared with the prior art, the beneficial effects of the utility model lie in that the carrier tape feeding block and the carrier tape track are arranged at two sides of the needle wheel respectively, and the guide groove for the carrier tape running is arranged on the carrier tape feeding block and the carrier tape track, the guide groove can improve the stability of the carrier tape running, so that the carrier tapes at two sides of the needle wheel are in the stable running state, the stable running of the carrier tapes passing through the needle wheel is ensured, and the accuracy of the needle wheel counting is improved, and after the carrier tape winding is completed, the cutter on the cutting assembly can be inserted into the cutting groove to cut the carrier tape. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a structural schematic view of a needle wheel counting and cutting mechanism of the utility model;

[0021] Figure 2 FIG. 2 is a structural schematic view of a counting assembly in the needle wheel counting and cutting mechanism of the utility model;

[0022] Figure 3The structure schematic view of the cutting assembly in the pin wheel counting cutting mechanism of the utility model is shown in the figure.

[0023] Figure 4 The structure schematic view of the tape track and the tape feeding block in the pin wheel counting cutting mechanism of the utility model is shown in the figure.

[0024] Figure 5 The structure schematic view of the isolation paper pressing plate in the pin wheel counting cutting mechanism of the utility model is shown in the figure.

[0025] In the figure,

[0026] 1, tape track; 11, guide groove; 12, cutter inlet groove; 13, second pressing plate; 14, cutter lip baffle;

[0027] 2, counting assembly; 21, pin wheel; 22, driving motor; 23, encoder; 24, secondary wheel; 25, clutch;

[0028] 3, cutting assembly; 31, cutter; 32, air cylinder; 33, mounting plate;

[0029] 4, isolation paper pressing plate; 41, guide inclined surface;

[0030] 5, tape feeding block; 51, first pressing plate; 52, avoiding hole; 53, arc surface;

[0031] 6, guide supporting wheel. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.

[0034] In addition, the description related to "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the same, or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor within the protection scope claimed by the present application.

[0035] As shown in one kind of needle wheel counting cutting mechanism, which can be widely used in carrier tape winding machine; Figures 1-5 As shown in one kind of needle wheel counting cutting mechanism, which can be widely used in carrier tape winding machine;

[0036] The needle wheel counting cutting mechanism comprises a carrier tape track 1, a counting assembly 2, a carrier tape feeding block 5 and a cutting assembly 3. The carrier tape track 1 is provided with a guide groove 11 extending along the movement direction of the carrier tape, and the carrier tape moves along the guide groove 11. The counting assembly 2 comprises a needle wheel 21 rotatably arranged at the feeding end of the carrier tape track 1. The upper surface of the needle wheel 21 is flush with the bottom surface of the guide groove. The circumferential surface of the needle wheel 21 is provided with needle heads adapted to the positioning holes on the side edge of the carrier tape. The end of the carrier tape feeding block 5 is abutted with the feeding end of the carrier tape track 1. The needle wheel 21 is located between the carrier tape feeding block 5 and the carrier tape track 1. The carrier tape feeding block 5 is also provided with a guide groove 11. The cutting assembly 3 comprises a cutter 31. The carrier tape track 1 is provided with a cutter groove 12. The carrier tape passes above the cutter groove 12. The cutter 31 can extend into the cutter groove 12 to cut the carrier tape. It should be noted that the needle wheel 21 counting cutting mechanism can be installed on the cabinet of the carrier tape winding machine. Specifically, the carrier tape track 1 and the carrier tape feeding block 5 are both provided with guide grooves 11 on both sides. The side edges of the carrier tape respectively extend into the guide grooves 11 on both sides. The pocket of the carrier tape is suspended and passes through the middle of the carrier tape feeding block 5 and the carrier tape track 1. The needle heads on the needle wheel 21 extend into the positioning holes on the carrier tape, so that the needle wheel 21 rotates to drive the carrier tape to advance. The carrier tape enters the guide groove 11 from the feeding end of the carrier tape feeding block 5, and then enters the guide groove 11 of the carrier tape track 1 after passing through the needle wheel 21. The carrier tape on both sides of the needle wheel 21 is in a stable running state, which ensures the stable running of the carrier tape when passing through the needle wheel 21, and further improves the accuracy of the needle wheel 21 counting;

[0037] In addition, the feeding end of the carrier tape feeding block 5 has an arc surface 53 connected with the bottom surface of the guide groove 11, so that the carrier tape can smoothly enter the guide groove 11 on the carrier tape feeding block 5. The two sides of the needle wheel 21 are gap-fitted with the carrier tape feeding block 5 and the carrier tape track 1, to ensure the smoothness of the rotation of the needle wheel 21;

[0038] In addition, the counting component 2 and the cutting component 3 are arranged side by side along the movement direction of the carrier tape, so that the structure is compact and the occupied space is reduced, the knife slot 12 penetrates the carrier tape track 1 along the width direction of the carrier tape track 1, the outer side wall of the carrier tape track 1 is further provided with a knife edge baffle 14, the knife edge baffle 14 covers the outlet of the knife slot 12, and the cutter 31 is a gas shear cutter, the lower cutter of the gas shear cutter extends into the knife slot 12, and the upper cutter of the gas shear cutter extends above the carrier tape.

[0039] The beneficial effects of the utility model lie in that: through setting the carrier tape feeding block 5 and the carrier tape track 1 on the two sides of the needle wheel 21, and setting the guide groove 11 for the carrier tape running on the carrier tape feeding block 5 and the carrier tape track 1, the stability of the carrier tape running can be improved, so that the carrier tapes on the two sides of the needle wheel 21 are in the stable running state, the stable running of the carrier tape through the needle wheel 21 is ensured, and the accuracy of the needle wheel 21 counting is improved, and after the carrier tape winding is completed, the cutter 31 on the cutting component 3 can extend into the knife slot 12 to cut the carrier tape.

[0040] Please refer to Figure 1 In a possible implementation, the upper surface of the needle wheel 21 is flush with the bottom surface of the guide groove 11. It is easy to understand that the upper surface of the needle wheel 21 flush with the bottom surface of the guide groove 11 can make the carrier tape always in a horizontal state when running, further improving the stability of the carrier tape running, thereby improving the accuracy of counting.

[0041] Please refer to Figure 1 and Figure 5 In a possible implementation, the top of the feeding end of the carrier tape track 1 is provided with a separator pressing plate 4, the separator pressing plate 4 is provided with a guide slope 41, and the separator enters the guide groove 11 and combines with the carrier tape along the guide slope 41. It is easy to understand that the separator pressing plate 4 can make the separator enter the guide groove 11 under the guidance of the guide slope 41, and can also limit the separator, so that the separator is close to the carrier tape, and the guide slope 41 can also avoid damage to the separator caused by the separator pressing plate 4.

[0042] Please refer to Figure 2In a possible implementation, the counting component 2 comprises a driving motor 22 and an encoder 23, the encoder 23 is connected with the driving motor 22 through a synchronous wheel and a synchronous belt, and a transmission shaft of the needle wheel 21 is connected with a driving shaft of the driving motor 22. It should be noted that the encoder 23 is located below the driving motor 22, so that the structure is more compact. The driving motor 22 is used for driving the needle wheel 21 to rotate, the encoder 23 is driven by the driving motor 22 through the synchronous wheel and the synchronous belt, and the encoder 23 can calculate the output length of the carrier tape according to the number of rotations. The driving shaft of the driving motor 22 is provided with a clutch 25, the transmission shaft of the needle wheel 21 is connected with the clutch 25. Specifically, when the carrier tape winding machine works, the carrier tape is conveyed to the needle wheel 21 through the unwinding mechanism, and the carrier tape is connected with the needle wheel 21. At this time, the clutch 25 is in the engaged state, so that the driving motor 22 drives the needle wheel 21 to rotate, so that the needle wheel 21 drives the carrier tape to move forward. When the carrier tape is conveyed to the winding mechanism of the winding machine, and the winding mechanism starts to wind, the clutch 25 is disengaged. At this time, the carrier tape is driven forward by the winding mechanism, and the needle wheel 21 is passively rotated under the driving of the carrier tape. When the winding mechanism finishes winding and the cutting assembly 3 is ready to cut, the clutch 25 is engaged to ensure that the carrier tape is fixed, so that the cutting assembly 3 can accurately cut.

[0043] Please refer to Figure 2 In a possible implementation, the counting component 2 further comprises a secondary wheel 24, the secondary wheel 24 is coaxially arranged with the needle wheel 21, and the secondary wheel 24 is used for contacting the other side edge of the carrier tape. It should be noted that the secondary wheel 24 rotates synchronously with the needle wheel 21, and the upper surface of the secondary wheel 24 contacts the edge of the carrier tape to guide the carrier tape and balance the two sides of the carrier tape, thereby improving the stability of the movement of the carrier tape. In the embodiment, the peripheral surface of the secondary wheel 24 is smooth, and the peripheral surface of the secondary wheel 24 can also be provided with a needle when needed.

[0044] Please refer to Figure 3 In a possible implementation, the cutting assembly 3 further comprises a gas cylinder 32, the driving end of the gas cylinder 32 is provided with a mounting plate 33, and the cutter 31 is arranged on the mounting plate 33. The gas cylinder 32 can drive the cutter 31 to approach or move away from the carrier tape track 1. It should be noted that the gas cylinder 32 is arranged on the cabinet of the winding machine, and the cutter 31 is located above the gas cylinder 32, so that the structure is more compact. The cutter 31 is connected with the driving end of the gas cylinder 32 through the mounting plate 33, so that the gas cylinder 32 drives the cutter 31 to approach or move away from the carrier tape track 1.

[0045] Please refer to Figure 1In a possible implementation, a guide roller 6 is further included, which is arranged at the feeding end of the carrier tape feeding block 5, and the upper surface of the guide roller 6 is flush with the bottom surface of the guide groove 11. It should be noted that the guide roller 6 is arranged on the cabinet of the winding machine, and the guide roller 6 can guide and support the carrier tape, so that the carrier tape is in parallel before entering the carrier tape feeding block 5, and the carrier tape enters the carrier tape feeding block 5 stably under the guidance of the guide roller 6, which is beneficial to further improve the stability of the carrier tape.

[0046] Please refer to Figure 1 In a possible implementation, the top of the carrier tape feeding block 5 is provided with a first pressing plate 51, which covers part of the guide groove 11 and the needle roller 21 on the carrier tape feeding block 5. It should be noted that the first pressing plate 51 can cover the guide groove 11 on the carrier tape feeding block 5 to limit the carrier tape, so that the carrier tape moves stably along the guide groove 11, and the end of the first pressing plate 51 is above the needle roller 21, which can avoid the separation of the carrier tape and the needle roller 21, and improve the stability of the connection between the carrier tape and the needle roller 21.

[0047] Please refer to Figure 4 In a possible implementation, the end of the first pressing plate 51 close to the needle roller 21 is provided with a avoiding hole 52 for avoiding the needle on the needle roller 21. It should be noted that in order to improve the stability of the connection between the needle roller 21 and the carrier tape, the needle on the needle roller 21 needs to pass through the positioning hole on the carrier tape completely, so the height of the needle is greater than the thickness of the carrier tape, and the avoiding hole 52 can avoid the collision between the needle roller 21 and the first pressing plate 51 when the needle roller 21 rotates upwards, which is beneficial to improve the smoothness of the rotation of the needle roller 21.

[0048] Please refer to Figure 4 In a possible implementation, the top of the carrier tape track 1 is further provided with a second pressing plate 13, which covers part of the guide groove 11, and the second pressing plate 13 is arranged close to the end of the carrier tape track 1. It should be noted that the second pressing plate 13 can cover the guide groove 11 in the latter half of the carrier tape track 1 to limit the carrier tape, so that the carrier tape moves stably along the guide groove 11.

[0049] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and replacements made by those skilled in the art based on the present application shall fall within the scope of protection of the present application.

Claims

1. A needle wheel counting and cutting mechanism, characterized in that, Includes carrier track, counting assembly, carrier feed block and cutting assembly; The carrier track is provided with a guide groove, which extends along the direction of carrier belt movement, and the carrier belt moves along the guide groove. The counting component includes a needle wheel, which is rotatably positioned at the feed end of the carrier track. The peripheral surface of the needle wheel is distributed with needles that are adapted to the positioning holes on one side edge of the carrier track. The end of the carrier belt feed block is spaced apart from the feed end of the carrier belt track, the pin wheel is located between the carrier belt feed block and the carrier belt track, and the carrier belt feed block is also provided with the guide groove; The cutting assembly includes a cutting tool, and the carrier track is provided with a cutting groove. The carrier belt passes over the cutting groove, and the cutting tool can extend into the cutting groove to cut the carrier belt.

2. The needle wheel counting and cutting mechanism as described in claim 1, characterized in that, The upper surface of the pin wheel is flush with the bottom surface of the guide groove.

3. The needle wheel counting and cutting mechanism as described in claim 1, characterized in that, The top of the feed end of the carrier track is provided with a release paper pressure plate, and the release paper pressure plate is provided with a guide slope. The release paper enters the guide groove along the guide slope and merges with the carrier belt.

4. The needle wheel counting and cutting mechanism as described in claim 1, characterized in that, The counting component includes a drive motor and an encoder. The encoder is connected to the drive motor via a synchronous pulley and a synchronous belt. The drive shaft of the pin wheel is connected to the drive shaft of the drive motor.

5. The needle wheel counting and cutting mechanism as described in claim 4, characterized in that, The counting assembly also includes a secondary wheel, which is coaxially arranged with the needle wheel and is used to contact the other edge of the carrier belt.

6. The needle wheel counting and cutting mechanism as described in claim 1, characterized in that, The cutting assembly also includes a cylinder, the drive end of which is provided with a mounting plate, and the cutter is disposed on the mounting plate. The cylinder can drive the cutter to move closer to or away from the carrier track.

7. The needle wheel counting and cutting mechanism as described in claim 1, characterized in that, It also includes a guide roller, which is disposed at the feeding end of the carrier belt feed block, and the upper surface of the guide roller is flush with the bottom surface of the guide groove.

8. The needle wheel counting and cutting mechanism as described in claim 1, characterized in that, The top of the carrier feed block is provided with a first pressure plate, which covers part of the guide groove and pin wheel area on the carrier feed block.

9. The needle wheel counting and cutting mechanism as described in claim 8, characterized in that, The first pressure plate has a clearance hole at one end near the needle wheel, which is used to avoid the needle on the needle wheel.

10. The needle wheel counting and cutting mechanism as described in claim 1, characterized in that, The top of the carrier track is also provided with a second pressure plate, which covers part of the guide groove and is located near the end of the carrier track.

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