Device for testing fixed tensile force of stripping carrier tape

Abstract

The utility model relates to the technical field of carrier tape testing, in particular to a fixed tension testing device for stripping a carrier tape, which can effectively improve the testing precision and comprises a base, a platform deck capable of translating is mounted on the base, a side support is mounted at one end of the base, and a horizontally arranged tension meter is mounted on the side support. A cover tape clamp is fixed at a measuring head of the tension meter, a bonding area is arranged in the middle of the carrying table, and a pressing seat for pressing the carrying tape is arranged on the carrying table close to the tension meter.

Description

Technical Field

[0001] The utility model relates to the technical field of carrier tape testing, in particular to a peeling carrier tape fixed-tensile force testing device. Background Art

[0002] A carrier tape is a strip-shaped product applied in the field of electronic packaging. It is used in conjunction with a cover tape to carry and store electronic components such as resistors, capacitors, transistors, and diodes in the pockets of the carrier tape, and a closed packaging is formed by sealing the cover tape above the carrier tape to protect the electronic components from being contaminated and damaged during transportation. Before formally carrying out the circuit packaging work, it is necessary to take samples for checking the peeling strength of the circuit carrier tape and measure the magnitude of the peeling tensile force of the carrier tape, that is, the force measured when the cover tape is pulled away (from the carrier tape) at a speed of 300 mm / min (the sample is 20 cm long and the measured length is more than 3 circuit grids). The peeling strength specification is 30~80 gf (upper limit - lower limit = 50 gf). The peeling device used is as Figure 1 shown. One end of the carrier tape is clamped and fixed by a carrier tape clip connected to a tensiometer, the other end is suspended, and the cover tape on the carrier tape is clamped and fixed by a cover tape clip. The cover tape clip is installed on the carrier table. As the carrier table moves to the left, the cover tape on the carrier tape is driven to peel off. The above device has the following disadvantages: the carrier tape is flexible and suspended. Affected by gravity, during peeling, the angle between the cover tape and the carrier tape changes greatly, resulting in an unstable fluctuation range of the test value and a large deviation range, which affects the accuracy of the tensile force test and cannot be eliminated by position correction. Summary of the Invention

[0003] In order to solve the above technical problems, the utility model provides a peeling carrier tape fixed-tensile force testing device, which can effectively improve the test accuracy.

[0004] Its technical solution is as follows: a peeling carrier tape fixed-tensile force testing device, which includes a base. A translatable carrier table is installed on the base. A side bracket is installed at one end of the base. A horizontally arranged tensiometer is installed on the side bracket. It is characterized in that a cover tape clip is fixed at the measuring head of the tensiometer. A bonding area is arranged in the middle of the carrier table. A pressure seat for pressing the carrier tape is arranged on the carrier table close to the tensiometer.

[0005] It is further characterized in that the pressure seat includes a left convex block and a right convex block installed on both sides of the bonding area. A flap is hingedly installed on the left convex block and a screw is installed on the flap. A threaded counterbore for cooperating with the screw is opened on the right convex block;

[0006] An installation groove is opened in the middle of the carrier table. A detachable long strip plate is installed in the installation groove through bolts. A bonding layer is coated on the long strip plate to form the bonding area.

[0007] After adopting the present utility model, the carrier tape clip is cancelled, and the carrier tape is directly pasted and fixed on the bonding area, offsetting the influence of the suspended gravity. Moreover, the adhesive force is greater than the peeling force. One end of the cover tape far from the tensiometer is clamped by a cover tape clip, and one end of the carrier tape close to the tensiometer is pressed by a pressing seat. Then, the carrier stage is moved in the direction away from the tensiometer, realizing the separation of the cover tape from the carrier tape. The change range of the included angle between the cover tape and the carrier tape is reduced, so that the fluctuation of the carrier tape peeling is more stable, effectively improving the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a schematic structural diagram of the prior art;

[0009] Figure 2 is a schematic structural diagram of the present utility model;

[0010] Figure 3 is a top view of the carrier stage DETAILED DESCRIPTION OF THE EMBODIMENTS

[0011] See Figure 1 , Figure 2 , Figure 3 As shown, a peeling carrier tape fixed tensile force testing device includes a base 1, on which a translatable carrier stage 2 is installed. The carrier stage 2 generally uses a lead screw mechanism to achieve movement. A side bracket 3 is installed at one end of the base 1, and a horizontally arranged tensiometer 4 is installed on the side bracket 3. A cover tape clip 5 is fixed at the measuring head of the tensiometer 4. A bonding area 13 is provided in the middle of the carrier stage 2, and a pressing seat 7 for pressing the carrier tape 6 is provided on the carrier stage 2 close to the tensiometer 4. The pressing seat 7 includes a left convex block 8 and a right convex block 9 installed on both sides of the bonding area. A flap 10 is hingedly installed on the left convex block 8, and a screw 11 is installed on the flap 10. A threaded counterbore matching the screw 11 is provided on the right convex block 9. When the flap 10 is covered and the screw 11 is tightened, the carrier tape 6 can be pressed, which not only plays a role in fixing the carrier tape but also prevents the cover tape from being completely torn. During normal detection, it is only necessary to measure a length of more than 3 circuit grids. The moving speed of the carrier stage is generally set at 300 mm / min. When the cover tape 12 is peeled off from the carrier tape 6, the magnitude of the tensile force is detected by the tensiometer 4.

[0012] Since the carrier tape is likely to fall off from the bonding area 13 after a period of time, an installation groove is provided in the middle of the carrier stage. A detachable long strip 15 is installed in the installation groove through a bolt 14, and an adhesive layer is coated on the long strip 15 to form the bonding area 13. When the adhesive force of the bonding area 13 is insufficient, the old long strip 15 can be removed and a new one can be replaced to continue ensuring the adhesive force of the carrier tape.

Claims

1. A stripping carrier fixing tensile test device, comprising a base, a translatable carrier is mounted on the base, a side bracket is mounted on one end of the base, a horizontally arranged tensile gauge is mounted on the side bracket, and the device is characterized in that: A cover tape clip is fixed to the measuring head of the tensile gauge, a bonding area is arranged in the middle of the carrier, and a pressing seat for pressing the carrier tape is arranged on the carrier near the tensile gauge.

2. A peeling carrier tape fixing tensile test device according to claim 1, characterized in that: The pressure seat comprises a left convex block and a right convex block installed on both sides of the bonding area, a flap is hingedly installed on the left convex block and a screw is installed on the flap, and a threaded countersunk hole matching with the screw is opened on the right convex block.

3. The peeling carrier tape fixing tensile test device according to claim 1, characterized in that: A mounting groove is provided in the middle of the carrier, a detachable long strip is installed in the mounting groove by bolts, and an adhesive layer is coated on the long strip to form the adhesive area.

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