Carrier tape size detection device

Abstract

The utility model belongs to the technical field of carrier tape processing, and particularly relates to a carrier tape size detection device. Comprising an optical fiber counting mechanism which is used for carrying out traction hole counting on the carrier tape; the bearing table is arranged behind the optical fiber counting mechanism and is used for bearing and limiting the carrier tape; the processor is used for receiving counting data of the optical fiber counting mechanism and transmitting a detection signal; and the size detection mechanism is used for detecting the size of the carrier tape on the bearing table according to the detection signal of the processor and transmitting the detection data to the processor. A plurality of tedious links such as unwinding, independent detection and rewinding needed in a traditional detection process can be simplified, continuous power provided by the winding device is fully utilized, and it is ensured that accurate detection of the size of the carrier tape can be completed in the winding process.

Description

Technical Field

[0001] The present application belongs to the technical field of carrier tape manufacturing process, and specifically relates to a carrier tape size detection device. Background Art

[0002] Carrier tape is a strip-shaped substrate designed for automated packaging of electronic components. It is mainly used to carry, position and protect various small electronic components such as integrated circuit chips, resistors, capacitors, etc. during transportation, storage and assembly during the manufacturing process. During the carrier tape forming process, the substrate is first cut into long strips, and then the storage holes for carrying electronic components and the traction holes for traction of the carrier tape are evenly spaced on the strip. Finally, the formed carrier tape is rolled into a roll by a winding device for storage and transportation.

[0003] As the core protective medium in the packaging and transmission process of electronic components, the carrier tape's dimensional accuracy is closely related to the matching of electronic components, and is a key factor in ensuring that the performance of components is not affected, the packaging process proceeds smoothly, and the automated production line operates efficiently. Therefore, before shipping the carrier tape to the client, the dimensions of the carrier tape need to be checked, such as the distance between the centers of the two traction holes of P0, the short side distance from the center of the traction hole of E to the edge of the carrier tape, the vertical distance from the center of the traction hole of F to the center of the storage hole, the distance between the centers of the two storage holes of P1, the horizontal distance from the center of the traction hole of P2 to the center of the storage hole, the width of the A0 storage hole, the length of the B0 storage hole, and other key dimensions.

[0004] The current inspection method is to unwind the rolled carrier tape and use a two-dimensional image measuring instrument to perform the above-mentioned dimensional inspection. This not only increases the steps of unwinding - inspection - rewinding, wasting manpower and material resources, but also fails to inspect all that should be inspected, and the product quality of all carrier tapes cannot be guaranteed. Utility Model Content

[0005] The purpose of the present application is to provide a carrier tape size detection device to perform online size detection on the traveling carrier tape during the winding step, which is specifically achieved through the following technical solutions:

[0006] A carrier tape size detection device comprises: an optical fiber counting mechanism for counting the traction holes of the carrier tape; a support platform, arranged behind the optical fiber counting mechanism, for carrying and limiting the carrier tape; a processor, for receiving the counting data of the optical fiber counting mechanism and transmitting a detection signal; a size detection mechanism, for performing size detection on the carrier tape on the support platform according to the detection signal of the processor, and transmitting the detection data to the processor.

[0007] The carrier tape size detection device can be fixed on the carrier tape winding device through an assembly plate, and the winding device provides the carrier tape with a uniform speed of movement. When in use, the optical fiber counting mechanism counts the number of traction holes of the uniformly moving carrier tape, and transmits the counting data to the processor. When the counting data reaches a preset value, the processor transmits a detection signal to the size detection mechanism. The size detection mechanism performs a size detection on the carrier tape carried and limited on the carrier platform, and transmits the detection data to the processor. The processor analyzes and feeds back the detection data, and outputs a visual detection result, thereby achieving the purpose of online size detection of the moving carrier tape during the winding step. Specifically, the optical fiber counting mechanism uses the sensitivity and fast response characteristics of the optical fiber sensing technology to quickly and accurately identify and count the carrier tape traction holes. After the moving carrier tape enters the carrier platform through the optical fiber counting mechanism, the carrier platform can carry and limit the carrier tape to prevent the carrier tape from displacement and shaking. When the size detection mechanism receives the processor signal, it can perform in-depth and accurate size detection on the carrier tape on the carrier platform. At this time, the carrier tape and the size detection device can remain relatively still, which improves the detection accuracy and realizes accurate quantitative detection of key size parameters of the carrier tape during the entire winding process, such as P0, E, F, P1, P2, A0, B0, etc.

[0008] Preferably, the optical fiber counting mechanism comprises an emitting optical fiber and a receiving optical fiber for receiving light transmitted through the carrier tape.

[0009] Preferably, the diameter of the optical fiber at the receiving end of the optical fiber counting mechanism is larger than the diameter of the optical fiber at the transmitting end, so as to better receive the light at the transmitting end and prevent errors.

[0010] Preferably, the size detection mechanism includes a detection camera arranged above the loading platform, which is used for taking photos and detecting the carrier tape loaded and limited on the loading platform.

[0011] Preferably, the size detection mechanism further comprises a fixing member for fixing the detection camera, and the fixing member is provided with a height adjustment member capable of adjusting the distance between the detection camera and the carrier tape. The height adjustment member can slide up and down on the fixing member to adjust the shooting position of the detection camera and improve the detection accuracy.

[0012] Preferably, the size detection mechanism further comprises a light source arranged below the supporting platform to provide sufficient brightness for the detection camera.

[0013] Preferably, the light source is a diffuse scattering light source to improve edge picking accuracy of carrier tape detection.

[0014] Preferably, the carrying platform is composed of two limiting members for limiting the position of the carrier tape.

[0015] Preferably, the limiting member includes a base with a groove and a pressure block arranged above the groove, wherein the groove is used to limit the path of the carrier tape, and the pressure block is used to prevent the carrier tape from shaking, so that the carrier tape and the detection camera can remain relatively still during detection, thereby improving detection accuracy. Preferably, the pressure block is hinged to the base, and an adjustment member for adjusting the pressure of the pressure block is arranged above the pressure block to better limit the carrier tape.

[0016] Preferably, the carrier tape size detection device further comprises: a guide unit, the guide unit comprising a first guide wheel and a second guide wheel for guiding the carrier tape. The first guide wheel is arranged at the entrance end side of the carrier tape entering the loading platform, and the second guide wheel is arranged at the exit end side of the carrier tape leaving the loading platform, for guiding the travel route of the carrier tape.

[0017] Preferably, the guide unit further comprises a pressure wheel matched with the second guide wheel, and the surface of the pressure wheel is made of soft material to avoid forming indentations on the surface of the carrier tape and affecting the quality of the carrier tape.

[0018] Preferably, the pressing wheel is also provided with a handle for controlling the rotation of the pressing wheel so as to control the flow of the carrier tape between the pressing wheel and the second guide wheel.

[0019] Compared with the prior art, this application has the following beneficial effects:

[0020] As an efficient online size detection solution, the carrier size detection device of the present application can be fixedly installed on the carrier winding device through an assembly plate, which not only simplifies the multiple cumbersome links such as unwinding, independent detection and rewinding required in the traditional detection process, but also makes full use of the continuous power provided by the winding device itself to ensure that the carrier can complete the accurate detection of the size during the winding process. When in use, the optical fiber counting mechanism counts the number of traction holes of the uniformly moving carrier and transmits the counting data to the processor. When the counting data reaches a preset value, the processor transmits the detection signal to the size detection mechanism. The size detection mechanism performs online detection on the carrier loaded and limited on the load platform and transmits the detection data to the processor for analysis and feedback. The processor directly outputs the size detection results such as P0, E, F, P1, P2, A0, B0, etc., which saves manpower and material resources in the carrier preparation process, and can perform online detection on the entire size of each roll of carrier to ensure product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to clearly illustrate the embodiments, the following is a brief introduction to the accompanying drawings:

[0022] Figure 1 is a top view of the carrier tape;

[0023] Figure 2It is a structural schematic diagram of a carrier tape size detection device;

[0024] Figure 3 This is a partial enlarged view of the carrier size detection device;

[0025] Figure 4 It is a structural schematic diagram of a carrier tape size detection device provided with a carrier tape;

[0026] Figure numerals: 100, supporting platform, 110, limiting member, 111, base, 112, pressing block, 200, optical fiber counting mechanism, 300, size detection mechanism, 310, detection camera, 320, height adjustment member, 410, first guide wheel, 420, second guide wheel, 430, pressing wheel, 431, handle. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the drawings and specific embodiments of the specification. A person of ordinary skill in the art will be able to implement the utility model based on these descriptions. In addition, the embodiments of the utility model involved in the following description are usually only embodiments of a part of the utility model, rather than all of the embodiments. Therefore, based on the embodiments in the utility model, all other embodiments obtained by a person of ordinary skill in the art without making creative work should fall within the scope of protection of the utility model. Example

[0028] See also Figures 1 to 4 This embodiment discloses a carrier tape size detection device, which performs online size detection on a traveling carrier tape during a winding step, including:

[0029] The assembly plate is used to fix the various mechanism components of the carrier tape size detection device on the winding device to fully utilize the continuous power provided by the winding device itself to ensure that the carrier tape can complete accurate size detection during the winding process.

[0030] The carrying platform 100 is arranged on the side surface of the assembly plate, and is used to carry and limit the carrier tape to be detected. Specifically, the carrying platform 100 is composed of two limiting members 110 for limiting the carrier tape, and the limiting member 110 includes a base 111 with a groove, and a pressure block 112 arranged above the groove, and the pressure block 112 is hinged to the base 111. The limiting member 110 also includes an adjustment member arranged above the pressure block 112 for adjusting the pressure of the pressure block 112, which is used to limit the travel route of the carrier tape and ensure that the carrier tape does not shake, thereby improving the detection accuracy.

[0031] The optical fiber counting mechanism 200 is arranged at the entrance side of the carrier tape entering the carrier platform 100, and is used to count the number of traction holes on the moving carrier tape; it includes an optical fiber fixing base arranged on the assembly plate, and an emitting optical fiber and a receiving optical fiber fixed at the upper and lower ends of the optical fiber fixing base, and the optical fiber fixing base is hollow in the middle for the carrier tape to pass through. The optical fiber counting mechanism 200 counts the traction holes based on the principle that the light emitted by the optical fiber at the emitting end can pass through the traction hole of the carrier tape and be transmitted to the optical fiber at the receiving end. In order to better receive the optical signal at the emitting end and prevent errors, in this embodiment, the diameter of the optical fiber at the receiving end is larger than that of the optical fiber at the emitting end.

[0032] The size detection mechanism 300 includes a detection camera 310 disposed above the carrier 100, and a fixing member for fixing the detection camera 310, wherein the fixing member is provided with a height adjustment member 320 capable of adjusting the distance between the detection camera 310 and the carrier tape. The detection camera 310 cooperates with the height adjustment member 320 to adjust the shooting position of the detection camera 310 and improve the detection accuracy. The size detection mechanism 300 also includes a light source disposed below the carrier 100, and the light source is preferably a diffuse scattering light source to improve the edge selection accuracy of the carrier tape detection.

[0033] The processor is electrically connected to the optical fiber counting mechanism 200 and the size detection mechanism 300 to facilitate the transmission of data and signals. Specifically, the processor is used to receive the counting data of the optical fiber counting mechanism 200. When the counting data reaches a preset value, the processor transmits a detection signal to the size detection mechanism 300, and the detection camera 310 of the size detection mechanism 300 takes a picture of the carrier tape carried and limited on the carrier platform 100. The image data captured by the detection camera 310 can be directly input into the processor for digital processing and analysis, and then directly output the online detection results of the dimensions such as P0, E, F, P1, P2, A0, B0, etc.

[0034] The guide unit is used to guide the carrier tape, and includes a first guide wheel 410 provided at the entrance end side of the carrier tape entering the loading platform 100 and a second guide wheel 420 provided at the exit end side of the carrier tape leaving the loading platform 100. In this embodiment, by providing the loading platform 100, the position limiting member 110, and the first guide wheel 410 and the second guide wheel 420, the stable conveyance and precise positioning of the carrier tape during the detection process are achieved. Specifically, the setting of the position limiting member 110 provides a clear position reference for the carrier tape, ensuring that the carrier tape moves along a preset path on the loading platform 100, avoiding the size detection error caused by the deviation of the carrier tape from the center or the uncertain position, and the limiting effect of the position limiting member 110 can also ensure the stability of the carrier tape, so that the carrier tape does not shake during the detection, so as to improve the detection accuracy. On this basis, the setting of the first guide wheel 410 and the second guide wheel 420 can smoothly guide the carrier tape into the loading platform 100 and send it out after the inspection is completed, which can avoid the carrier tape from getting stuck, wrinkled or torn during the transportation process, maintain the stable operation of the inspection equipment, and realize the automated assembly line operation of the online size inspection of the carrier tape.

[0035] In order to further accurately limit the carrier tape carried by the carrier platform 100 to meet the detection requirements, the guide unit in this embodiment also includes a pressure wheel 430 that cooperates with the second guide wheel 420. The pressure wheel 430 is also equipped with a handle 431 for controlling the rotation of the pressure wheel 430 to control the flow of the carrier tape between the pressure wheel 430 and the second guide wheel 420. This embodiment enhances the ability to accurately adjust the position of the carrier tape on the surface of the carrier platform 100 by adding a pressure wheel 430 and its control handle 431, realizes dynamic regulation of the tension of the carrier tape, improves the adaptability and flexibility of the device, and can ensure that the carrier tape is in a suitable tension state during the detection process, avoiding deformation of the carrier tape due to excessive tension or relaxation of the carrier tape due to insufficient tension, thereby ensuring the stability and reliability of the detection results. The surface of the pressure wheel 420 is a soft material, which can avoid forming indentations on the surface of the carrier tape and affecting the quality of the carrier tape.

[0036] The use process of the carrier tape size detection device disclosed in this embodiment is as follows: the carrier tape moves along the guide unit under the drive of the winding device, and at the same time, the optical fiber counting mechanism 200 counts the traction holes on the surface of the moving carrier tape and transmits the counting data to the processor. When the counting data reaches a preset value, the processor transmits a detection signal to the size detection mechanism 300, and the detection camera 310 of the size detection mechanism 300 shoots the carrier tape carried and limited on the carrier platform 100. The image data shot by the detection camera 310 can be directly input into the processor for digital processing and analysis, and then directly output the online detection results of the dimensions such as P0, E, F, P1, P2, A0, B0, etc. to complete the detection.

Claims

1. A carrier tape size detection device, which performs online size detection on a traveling carrier tape during a winding step, characterized in that: include: An optical fiber counting mechanism (200) is used to count the traction holes of the carrier tape; A carrying platform (100), arranged behind the optical fiber counting mechanism (200), and used for carrying and limiting the position of the carrier tape; A processor, used for receiving counting data from the optical fiber counting mechanism (200) and transmitting a detection signal; The size detection mechanism (300) performs size detection on the carrier tape on the carrier platform according to the detection signal of the processor, and transmits the detection data to the processor.

2. A carrier tape size detection device according to claim 1, characterized in that: The optical fiber counting mechanism (200) comprises an emitting end optical fiber and a receiving end optical fiber used for receiving light passing through the carrier tape traction hole.

3. A carrier tape size detection device according to claim 1, characterized in that: The size detection mechanism (300) comprises a detection camera (310) arranged above the supporting platform (100).

4. A carrier tape size detection device according to claim 3, characterized in that: The size detection mechanism (300) further comprises a fixing member for fixing the detection camera (310), the fixing member being provided with a height adjustment member (320) capable of adjusting the distance between the detection camera (310) and the carrier tape.

5. A carrier tape size detection device according to any one of claims 3 or 4, characterized in that: The size detection mechanism (300) further comprises a light source arranged below the supporting platform (100).

6. A carrier tape size detection device according to claim 5, characterized in that: The light source is a diffuse scattering light source.

7. The carrier tape size detection device according to claim 1, characterized in that: The carrying platform (100) comprises two limiting members (110) for limiting the position of the carrying tape.

8. The carrier tape size detection device according to claim 7, characterized in that: The limiting member (110) comprises a base (111) with a groove, and a pressing block (112) arranged opposite to the groove.

9. The carrier tape size detection device according to claim 1, characterized in that: Also includes: A guide unit, the guide unit comprising a first guide wheel (410) and a second guide wheel (420) for guiding the carrier tape.

10. The carrier tape size detection device according to claim 9, characterized in that: The guide unit further comprises a pressure wheel (430) matched with the second guide wheel (420), and the surface of the pressure wheel (430) is made of soft material.

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