Electronic material belt film stripping mechanism

Abstract

The utility model discloses an electronic material belt film stripping mechanism which comprises a shell and a film separation sheet, the film separation sheet is fixedly arranged at the top of the shell, a vacuum suction block is further fixedly arranged in the shell, an air guide pipe is arranged on one side of the vacuum suction block and connected with a vacuum pump through a pipeline, an air guide hole is formed in the vacuum suction block, and the air guide hole is communicated with the vacuum suction block. A plurality of vacuum suction ports are formed in the top of the vacuum suction block and connected with the air guide pipe through air guide holes. The plurality of vacuum suction ports are uniformly arranged at intervals in the moving direction of the base band, and the opening areas of the vacuum suction ports are gradually reduced in the moving direction of the base band. According to the utility model, the vacuum suction block is arranged below the film stripping position of the material belt, and vacuum suction force is applied to the material in the base belt accommodating cavity at the film stripping position through the vacuum suction port, so that the material loss caused by material throwing due to the fact that the material is taken up during film stripping can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, specifically to an electronic tape film peeling mechanism. Background Technology

[0002] In the field of surface mount circuit board (SMT) fabrication technology, surface mount electronic components (hereinafter referred to as materials) are typically stored in a material tape during transport and storage. The material tape includes a base tape and a film. The base tape has several hollowed-out cavities for accommodating the materials, and the film is attached to the top of the cavities to prevent the materials from falling out of the cavities.

[0003] When handling materials, the film on the conveyor belt needs to be peeled off, such as... Figure 1 As shown, the existing electronic tape film peeling mechanism includes a housing 1 and a film separation plate 2. The film separation plate 2 is fixed to the top of the housing 1, and the tape passes through the bottom of the film separation plate 2. The tape with unpeeled film 104 and the base tape 102 move along the direction of the solid arrow under the action of a set of traction mechanisms (not shown). The film 104 is peeled off from the base tape 102 at the position where the tape leaves the film separation plate 2. The film 104 then moves along the direction of the hollow arrow under the action of another set of traction mechanisms (not shown). Due to the slight stickiness of the film 104 and the static electricity generated at the moment of peeling, there is often a phenomenon that the film 104 carries up material during peeling, and abnormalities such as material adsorption, side-standing, deviation, and identification errors lead to material rejection.

[0004] To reduce material loss caused by material being thrown up during film peeling, the current practice is to add a humidifier or ion fan at the film peeling location, but the effect is still not ideal. Utility Model Content

[0005] The purpose of this invention is to provide an electronic tape film peeling mechanism.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] An electronic tape film peeling mechanism includes a housing and a film separation plate. The film separation plate is fixed on the top of the housing. A vacuum suction block is also fixed inside the housing. A gas guide pipe is provided on one side of the vacuum suction block. The gas guide pipe is connected to a vacuum pump through a pipeline. A gas guide hole is provided inside the vacuum suction block. A plurality of vacuum suction ports are provided on the top of the vacuum suction block. The vacuum suction ports are connected to the gas guide pipe through the gas guide hole to apply vacuum suction to the material in the baseband cavity at the film peeling position.

[0008] The vacuum suction ports are evenly spaced in the direction of baseband movement, and the opening area of ​​the vacuum suction ports decreases in the direction of baseband movement.

[0009] The spacing between adjacent vacuum ports is less than the width of a single cavity on the baseband.

[0010] As a further improvement of this utility model, the vacuum suction port is a rectangular port, and the width of the vacuum suction port decreases in the direction of baseband movement.

[0011] As a further improvement of this utility model, the vacuum suction port is a circular port, and the diameter of the vacuum suction port decreases in the direction of movement of the baseband.

[0012] As a further improvement of this utility model, the vacuum suction port located at the first position is aligned with the film peeling position.

[0013] As a further improvement of this utility model, the vacuum suction block is further provided with a flow equalization cavity, and the vacuum suction port is connected to the air guide hole through the flow equalization cavity.

[0014] As a further improvement of this utility model, the vacuum suction block is provided with a connection hole.

[0015] As a further improvement of this utility model, an annular rib is provided on the outer wall of the end of the air guide tube.

[0016] Compared with the prior art, the technical advantages of this utility model are as follows:

[0017] This invention features a vacuum suction block positioned below the film peeling point of the material strip. By applying vacuum suction to the material within the baseband cavity at the film peeling point through the vacuum suction port, the material can be held inside the cavity, preventing it from being lifted by the film during peeling and reducing material loss caused by material throwing.

[0018] The design of decreasing vacuum port opening area along the direction of baseband movement ensures a decreasing suction force distribution across all vacuum ports. This prevents the baseband from rapidly springing back and bouncing the material due to a sudden loss of vacuum suction. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an electronic tape film peeling mechanism in the prior art;

[0020] Figure 2 This is a schematic diagram of the internal structure of an electronic tape film peeling mechanism according to a specific embodiment of this utility model;

[0021] Figure 3 yes Figure 2 Enlarged structural diagram at point A;

[0022] Figure 4 This is a three-dimensional structural diagram of the vacuum suction block in Example 1;

[0023] Figure 5 This is a three-dimensional structural diagram of the vacuum suction block in Example 2. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0025] Example 1

[0026] Please see Figures 2 to 4 An electronic tape film peeling mechanism includes a housing 1 and a film separation plate 2. The film separation plate 2 is fixed on the top of the housing 1. A vacuum suction block 3 is also fixed inside the housing 1. A gas guide pipe 4 is provided on one side of the vacuum suction block 3. The gas guide pipe 4 is connected to a vacuum pump (not shown) through a pipeline. A gas guide hole 31 is provided inside the vacuum suction block 3. A plurality of vacuum suction ports 6 are provided on the top of the vacuum suction block 3. The vacuum suction ports 6 are connected to the gas guide pipe 4 through the gas guide holes 31 to apply vacuum suction to the material 101 in the cavity 103 of the base tape 102 at the peeling position of the film 104.

[0027] The vacuum suction ports 6 are evenly spaced in the moving direction of the baseband 102, and the opening area of ​​the vacuum suction ports 6 decreases in the moving direction of the baseband 102.

[0028] The spacing between adjacent vacuum ports 6 is less than the width of a single cavity 103 on the baseband 102.

[0029] It should be noted that in this utility model, the film separating plate 2 and the traction mechanism for the traction base belt 102 and film 104 are all based on existing structures. In use, the material belt passes through the bottom of the film separating plate 2. First, manually peel off a section of film 104 at the end and connect the peeled end of film 104 to the traction mechanism. When the traction mechanism drives the base belt 102 and film 104 to move forward, film 104 will automatically peel off from base belt 102 at the position where the material belt is exposed from film separating plate 2.

[0030] The vacuum suction block 3 is located below the baseband 102. The vacuum suction port 6 applies vacuum suction to the material 101 through the hollowed-out area at the bottom of the cavity 103 of the baseband 102. This overcomes the electrostatic attraction at the moment of peeling off the film 104 and the force exerted on the material 101 by the adhesiveness of the film 104 itself. The material 101 can be adsorbed and fixed inside the cavity 103, preventing the material 101 from being lifted by the film 104 when the film 104 is peeled off.

[0031] The baseband 102 is typically made of thermoplastic material, which has a certain degree of elasticity. Under vacuum suction, it is prone to downward elastic deformation, especially the part of the cavity 103 that directly supports the material 101, as this thin sheet is more susceptible to deformation. If only one vacuum suction port 6 is provided, the vacuum suction will suddenly disappear after the cavity 103 passes through the vacuum suction port 6, causing the downward elastically deformed part of the baseband 102 to quickly elastically reset upward, potentially throwing the material 101 away. Therefore, the multiple vacuum suction ports 6 of this invention are designed with a decreasing opening area in the direction of movement of the baseband 102. This ensures that the vacuum suction gradually decreases as the baseband 102 passes through the area where the vacuum suction port 6 is located, allowing the elastically deformed part of the baseband 102 to slowly reset and preventing the material 101 from being thrown away.

[0032] Setting the spacing between adjacent vacuum ports 6 to be less than the width of a single cavity 103 on the baseband 102 (the width of the cavity 103 refers to the size of the cavity 103 in the direction of travel of the baseband 102) is to ensure that when a cavity 103 passes through the distribution area of ​​the vacuum ports 6, there is always at least one vacuum port 6 aligned with it (if the spacing is too large, the cavity 103 will lose vacuum suction when it moves to the spacing position), thus avoiding the phenomenon of sudden loss of vacuum suction.

[0033] Furthermore, in this embodiment, the vacuum suction port 6 is a rectangular port, and the width of the vacuum suction port 6 decreases in the moving direction of the baseband 102.

[0034] Furthermore, in this embodiment, the first vacuum suction port 6 (the first refers to the vacuum suction port 6 that first contacts a cavity 103 of the baseband 102) is aligned with the peeling position of the film 104.

[0035] Of course, in other embodiments, the first vacuum port 6 can also be positioned slightly ahead of the peeling position of the film 104, so that a vacuum suction force is applied to the material 101 before the film 104 is peeled off.

[0036] Furthermore, the vacuum suction block 3 is also provided with a flow equalization cavity 32, and the vacuum suction port 6 is connected to the air guide hole 31 through the flow equalization cavity 32. The connection between the vacuum suction port 6 and the air guide hole 31 through the flow equalization cavity 32 can reduce the influence of the distance between the vacuum suction port 6 and the air guide hole 31 on the suction force of the vacuum suction port 6.

[0037] Furthermore, the vacuum suction block 3 is provided with a connecting hole 33. When installing the vacuum suction block 3, it can be fixed to the housing 1 by bolts passing through the connecting hole 33. The connecting hole 33 is preferably located at the corner of the vacuum suction block 3.

[0038] Furthermore, an annular rib 5 is provided on the outer wall of the end of the air guide pipe 4. When the air guide pipe 4 is connected to the vacuum pump through the pipeline, the annular rib 5 fits with the inner wall of the pipeline, which helps to improve the airtightness of the connection between the air guide pipe 4 and the pipeline.

[0039] Example 2

[0040] Please see Figure 5 Unlike Embodiment 1, in this embodiment, the vacuum suction port 6 is a circular port, and the diameter of the vacuum suction port 6 decreases in the moving direction of the baseband 102. The rest is the same as in Embodiment 1. The circular port can be easily manufactured by drilling, which helps to reduce the manufacturing cost of the vacuum suction block 3.

[0041] Compared with the prior art, the technical advantages of this utility model are as follows:

[0042] This invention provides a vacuum suction block 3 below the peeling position of the film 104 on the material strip. The vacuum suction port 6 applies a vacuum suction force to the material 101 in the cavity 103 of the base strip 102 at the peeling position of the film 104, which can suck the material 101 into the cavity 103, preventing the material 101 from being carried away by the film 104 when the film 104 is peeled off, and reducing the loss of material 101 caused by material throwing.

[0043] The design of the vacuum suction port 6 with decreasing opening area in the moving direction of the base belt 102 results in a decreasing distribution of suction force among the vacuum suction ports 6 in the moving direction of the base belt 102. This avoids the phenomenon that the base belt 102 will quickly and elastically reset upward and bounce the material 101 due to a sudden loss of vacuum suction.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. An electronic tape film peeling mechanism, comprising a housing and a film separation plate, wherein the film separation plate is fixedly disposed on the top of the housing, characterized in that, A vacuum suction block is also fixed inside the housing. A gas guide pipe is provided on one side of the vacuum suction block. The gas guide pipe is connected to a vacuum pump through a pipeline. A gas guide hole is provided inside the vacuum suction block. Several vacuum suction ports are provided on the top of the vacuum suction block. The vacuum suction ports are connected to the gas guide pipe through the gas guide hole to apply vacuum suction to the material in the baseband cavity at the film peeling position. The vacuum suction ports are evenly spaced in the direction of baseband movement, and the opening area of ​​the vacuum suction ports decreases in the direction of baseband movement. The spacing between adjacent vacuum ports is less than the width of a single cavity on the baseband.

2. The electronic tape film peeling mechanism according to claim 1, characterized in that, The vacuum suction port is rectangular, and the width of the vacuum suction port decreases in the direction of baseband movement.

3. The electronic tape film peeling mechanism according to claim 1, characterized in that, The vacuum suction port is circular, and its diameter decreases in the direction of baseband movement.

4. The electronic tape film peeling mechanism according to claim 1, characterized in that, The vacuum suction port located at the first position is aligned with the film peeling position.

5. The electronic tape film peeling mechanism according to claim 1, characterized in that, The vacuum suction block is also provided with a flow equalization cavity, and the vacuum suction port is connected to the air guide hole through the flow equalization cavity.

6. The electronic tape film peeling mechanism according to claim 1, characterized in that, The vacuum suction block is provided with a connection hole.

7. The electronic tape film peeling mechanism according to claim 1, characterized in that, The outer wall of the end of the air duct is provided with an annular rib.

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