CN204936179U - A kind of carrier band shaped device - Google Patents

Abstract

The utility model provides a carrier tape forming device, which comprises a frame, a gas input unit, and an upper forming die, a lower forming die and a clamping unit connected with the frame; the clamping unit is opposite to the lower forming die; The distance between the unit and the forming lower mold can be adjusted; the forming upper mold includes the upper mold base and several forming cylinders; the forming lower mold is provided with several lower mold holes corresponding to the position of the forming cylinder; the upper mold base passes through The driving unit of the upper mold is connected with the frame; there are gaps between each forming cylinder and the hole wall of the lower mold; the gas input unit is connected with the lower forming mold to realize the input of compressed gas. The carrier tape forming device can improve the product quality, avoid the deformation of the carrier tape, realize the manufacture of the carrier tape with narrow middle wall and deep cavity, and save the manufacturing cost of the carrier tape.

Description

A carrier tape forming device

technical field

The utility model relates to the technical field of carrier tape forming, in particular to a carrier tape forming device.

Background technique

Carrier tape is a strip-shaped product used in the field of electronic packaging. Cavities for holding electronic components are distributed equidistantly along its length; a middle wall is formed between adjacent cavities for electronic components. Quarantine. At present, the manufacturing methods of carrier tape generally include die stamping method and blow molding method. The die stamping method refers to the use of upper and lower dies to directly press the sheet into the required shape of the carrier tape. The blow molding method refers to placing the sheet on the mold, and setting an air cover above the sheet to form a sealed space, and blowing compressed air into the sealed space to make the sheet fit the mold.

With the development of science and technology, there are more and more types of electronic components, and there are also various sizes. For high-height electronic components, the carrier tape should also increase the depth of the cavity. In the die stamping method, the cavity wall of the carrier tape is mainly formed by stretching and deforming a small area of material; the cavity wall of a deep cavity needs to be greatly stretched on a small area of material, which may easily cause the cavity wall to be too thin , or even breakage; if the width of the middle wall is designed to be small at this time, it is necessary to realize the stretching of two adjacent cavity walls on a small area of material, so the die stamping method is even less likely to be applied to narrow Carrier tape manufacturing occasions with deep cavity in the middle wall. However, when the blow molding method is applied to the manufacture of carrier tapes with narrow walls and deep cavities, the blow molding equipment needs to adjust multiple parameters such as blow intensity and blow delay time, and it is difficult to obtain a good forming effect. Medium load tape is prone to deformation. Therefore, the existing two carrier tape manufacturing methods cannot produce a carrier tape with a narrow middle wall and a deep cavity; at present, manufacturers often meet the cavity depth requirements by widening the size of the sheet and widening the size of the middle wall. However, this approach increases the manufacturing cost of the carrier tape by at least 60%, which is not conducive to enterprises to seize the carrier tape market.

Utility model content

In order to overcome the shortcomings and deficiencies in the prior art, the purpose of this utility model is to provide a method that can avoid the cavity wall from being too thin and broken, improve product quality, avoid carrier tape deformation, and realize the manufacture of narrow, middle wall and deep cavity carrier tape. , Carrier tape forming device that saves manufacturing cost and is easy to operate.

In order to achieve the above object, the utility model is achieved through the following technical solutions: a carrier tape forming device, characterized in that it includes a frame and a gas input unit, and an upper forming die, a lower forming die and a clamp connected to the frame holding unit;

The clamping unit is opposite to the forming lower mold; the distance between the clamping unit and the forming lower mold can be adjusted;

The forming upper mold includes an upper mold base and several forming cylinders; the upper mold base is located on the side of the clamping unit away from the forming lower mold; each forming cylinder is arranged side by side on the upper mold base close to the forming lower mold One side; the forming lower mold is provided with several lower mold holes corresponding to the position of the forming cylinder; the upper mold base is connected with the frame through the upper mold driving unit to realize the movement of the upper mold base to drive the forming cylinder Enter the lower die hole or exit the lower die hole; there are gaps between each forming cylinder and the lower die hole wall;

The gas input unit is connected with the forming lower mold to realize compressed gas input.

The carrier tape molding device of the utility model is used to make the sheet material into a carrier tape, and its working principle is: firstly, the sheet material is clamped between the clamping unit and the lower molding die; then the upper molding die is moved to press the molding cylinder The part of the sheet located at the opening of the lower die hole enters the lower die hole together, so that the sheet is stretched to form the initial cavity; the gap between the forming cylinder and the hole wall of the lower die hole>The thickness of the sheet, so the initial shape There are gaps between the cavity and the forming cylinder and the hole wall of the lower mold; the sheet is pressed and covered on the hole of the lower mold, so a sealed space is formed in the lower mold; then the gas input unit blows compressed gas into the sealed space , that is, apply pressure to the bottom of the sheet to make the sheet fit into a molding cylinder to form a cavity, and the carrier tape molding is completed.

The carrier tape molding device of the utility model adopts mold pressing to realize preliminary molding, and realizes final molding by blowing molding. Compared with the traditional carrier tape forming device directly using the mold forming method, the carrier tape forming device of the utility model increases the material involved in stretching and deformation, which can avoid excessive stretching of the material and cause the wall of the cavity to be too thin and broken, which is beneficial to It is made into a carrier tape with a narrow middle wall and a deep cavity, which saves the manufacturing cost of the carrier tape. The blow molding method makes small adjustments to the sheet to achieve further molding. The blow molding method can form a cavity wall with a relatively uniform thickness and improve product quality; compared with the traditional device that directly uses the blowing method to realize carrier tape molding Compared with the carrier tape forming device of the present invention, the sheet can be compressed and covered in the hole of the lower die to form a sealed space, which can reduce the number of components for forming the sealed space, facilitate operation, improve processing efficiency, and avoid deformation of the carrier tape. Therefore, the processing difficulty of the carrier tape is reduced.

A further solution is: the clamping unit includes a clamping part; the clamping part is connected to the frame; the clamping part refers to a clamping part formed by a plate body provided with a number of guide holes; each guide hole is connected to the The position of the lower die hole is corresponding. The advantage of this design of the clamping part is: during the mold pressing stage, the clamping part applies a clamping force to the sheet, the clamping area is large, and the clamping force is applied evenly, which can avoid the displacement of the sheet during the mold pressing stage and improve the product quality. Yield rate: In the blow molding stage, the sheet can be attached to form the cylinder and the clamping part to form, which can avoid air bubbles in the formed carrier tape.

A further solution is: the clamping unit further includes a guide part for guiding the moving direction of the upper mold base; the connection between the clamping part and the frame means that the clamping part is connected to the frame through the guide part. The guide part can guide the moving direction of the upper die base body, and can realize the limit of the movement of the upper die base body, which is beneficial to reduce the dimensional error of the carrier tape and improve the machining accuracy.

The guide part is arranged on both sides of the clamping part to jointly form a groove; the upper die base is connected with the frame through the upper die drive unit, so that the upper die base can move along the depth direction of the groove. The guide part can effectively guide the moving direction of the upper mold base, and can also position the upper mold base to avoid swinging of the upper mold during the blow molding stage, so that the device can operate reliably, stably and safely.

The forming cylinder includes an upper part of the forming cylinder and a lower part of the forming cylinder; the cross-sectional area of the upper part of the forming cylinder>the cross-sectional area of the lower part of the forming cylinder, and the cross-sectional area of the upper part of the forming cylinder>the cross-sectional area of the guide hole ; The upper part of the forming cylinder is offset against the clamping part. The upper part of the forming cylinder is offset against the clamping part, which can better form a sealed space between the sheet and the forming lower mold; thereby better realize blow molding.

The preferred solution is: a gas flow cavity is opened in the forming lower mold; each hole of the lower mold communicates with the gas input unit through the gas flow cavity. Each lower die hole is connected to the gas input unit through the gas flow cavity, which can evenly air the air pressure inside each lower die hole, so that each cavity of the carrier tape has good consistency.

The preferred solution is: the upper mold drive unit includes a push rod and a driver, and a connecting plate connected to the frame; a guide hole is provided on the connecting plate; one end of the push rod is connected with the upper die base, and the push rod The other end passes through the guide hole; the driver is connected with the frame and the push rod respectively, so as to realize the push rod to push the upper die base to move; the adjustable distance between the clamping unit and the lower forming die means, The clamping unit is connected with the frame, and the forming lower mold is connected with the frame through the lower mold driving unit to realize the movement of the forming lower mold towards the clamping unit and away from the clamping unit, so as to realize the distance between the clamping unit and the forming lower mold adjust. The other end of the push rod passes through the guide hole, and the guide hole can make the push rod move along the opening direction of the guide hole, and the moving direction is more precise. The forming lower mold is connected with the frame through the lower mold driving unit, which can realize the adjustment of the distance between the clamping unit and the forming lower mold, can shorten the stroke distance of the forming upper mold, and is conducive to improving the processing accuracy.

The driving unit of the upper mold also includes a linear bearing; the linear bearing is arranged in the guide hole; the other end of the push rod passes through the guide hole through the linear bearing. The linear bearing can further improve the accuracy of the moving direction of the push rod, avoid wear of the push rod and the guide hole, and prolong the service life of the device.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. The carrier tape forming device of the utility model increases the materials involved in stretching and deformation, which can avoid excessive stretching of the material and cause the cavity wall to be too thin and broken, and is conducive to making a carrier tape with a narrow middle wall and a deep cavity, saving load Tape manufacturing cost; it can form a cavity wall with a relatively uniform thickness, which can improve product quality; it can improve processing efficiency and avoid deformation of the carrier tape, thereby reducing the processing difficulty of the carrier tape;

2. The carrier tape forming device of the utility model can avoid sheet displacement during the mold pressing stage, improve product yield, and avoid air bubbles in the formed carrier tape;

3. The clamping unit of the carrier tape forming device of the present invention can guide the moving direction of the upper die base, and realize the limit of the movement of the upper die base, which is beneficial to reduce the size error of the carrier tape and improve the processing accuracy; The base of the upper mold is positioned to avoid the swing of the upper mold during the blow molding stage, so that the device can operate reliably, stably and safely;

4. In the carrier tape forming device of the present invention, a good sealing space can be formed between the sheet and the forming lower mold, so as to better realize blow molding; it can make each cavity of the carrier tape have good consistency;

5. The carrier tape forming device of the present invention is provided with a guide hole to guide the moving direction of the push rod, which can make the moving direction more accurate; a linear bearing is provided in the guide hole, and the linear bearing can further improve the accuracy of the moving direction of the push rod, which can avoid Push rods and guide holes are subject to wear, extending the life of the unit.

Description of drawings

Fig. 1 is the structural representation of the carrier tape forming device of the present invention;

Fig. 2 is a schematic diagram of the installation of the forming upper mold, the forming lower mold and the clamping unit in the carrier tape forming device of the present invention;

Fig. 3 is a schematic structural view of the forming upper die in the carrier tape forming device of the present invention;

Fig. 4 is a schematic structural view of the clamping unit in the carrier tape forming device of the present invention;

Fig. 5 is a structural schematic diagram of the forming lower die in the carrier tape forming device of the present invention;

Fig. 6 is a sectional view of the forming lower mold in the carrier tape forming device of the present invention;

Among them, 1 is the forming upper mold, 11 is the upper mold base, 12 is the forming cylinder, 2 is the clamping unit, 21 is the clamping part, 22 is the guide hole, 23 is the guide part, 3 is the forming lower mold, 31 32 is a gas flow cavity, 4 is an upper mold driving unit, 41 is a push rod, and 42 is a connecting plate.

detailed description

The utility model is described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Embodiment one

This embodiment describes a carrier tape forming device, which is used to make a sheet into a carrier tape; its structure is shown in Figure 1; it includes a frame and a gas input unit, as well as a molding upper mold 1, a molding lower mold 3 and a clamping Unit 2.

Wherein, the forming lower mold 3 is positioned at the lower side of the clamping unit 2, as shown in Figure 2; the clamping unit 2 is connected with the frame; The clamping unit 2 moves to and from the clamping unit 2 , so as to realize the adjustment of the distance between the clamping unit 2 and the lower forming mold 3 . The clamping unit 2 and the lower forming die 3 are used to clamp the sheet, and the positioning of the sheet can be realized by adjusting the distance between the clamping unit 2 and the lower forming die 3 .

As shown in Figure 3, the forming upper mold 1 includes an upper mold base 11 and several forming cylinders 12; the upper mold base 11 is located on the upper side of the clamping unit 2; each forming cylinder 12 is arranged side by side on the upper mold base 11 The lower side of the lower mold 3 is provided with several lower mold holes 31 corresponding to the positions of the forming cylinder 12; the upper mold base 11 is connected with the frame through the upper mold drive unit 4 to realize the movement of the upper mold base 11 Thereby, the forming cylinders 12 are driven to enter the lower die hole 31 or exit the lower die hole 31; there are gaps between each forming cylinder 12 and the wall of the lower die hole 31.

The gas input unit is connected with the forming lower mold 3 to realize compressed gas input.

Generally, the sheet is heated and softened first, and then formed by the carrier tape forming device of this embodiment. The working principle of the carrier tape forming device in this embodiment is as follows: firstly, the sheet is clamped between the clamping unit 2 and the forming lower die 3; then the forming upper die 1 moves down so that the forming cylinder 12 presses the sheet and is positioned on the lower die The part of the hole 31 orifice enters the lower mold hole 31 together, so that the sheet is stretched to form the initial cavity; the gap between the forming cylinder 12 and the wall of the lower mold hole 31 > the thickness of the sheet, so the initial cavity There are gaps between the forming cylinder 12 and the hole wall of the lower mold hole 31; the sheet is pressed and covered on the lower mold hole 31, so a sealed space is formed in the lower mold 3; then the gas input unit blows into the sealed space Inject compressed gas, that is, apply pressure to the bottom of the sheet to make the sheet stick to the forming cylinder 12 to form a cavity, and the carrier tape is formed.

In this embodiment, the carrier tape molding device adopts mold pressing to realize preliminary molding, and realizes final molding by blow molding. Compared with the traditional direct mold forming method to realize the carrier tape forming device, the carrier tape forming device in this embodiment increases the material involved in stretching and deformation, which can avoid excessive stretching of the material and cause the cavity wall to be too thin and broken, which is beneficial to It is made into a carrier tape with a narrow middle wall and a deep cavity, which saves the manufacturing cost of the carrier tape. The carrier tape forming device of the utility model can produce a carrier tape whose middle wall is less than 1.5mm, making the cavity of the carrier tape more dense; carrier tape. The blow molding method makes small adjustments to the sheet to achieve further molding. The blow molding method can form a cavity wall with a relatively uniform thickness and improve product quality; compared with the traditional device that directly uses the blowing method to realize carrier tape molding Compared with this embodiment, the sheet of the carrier tape forming device can be compressed and covered in the lower die hole to form a sealed space, which can reduce the number of parts for forming the sealed space, facilitate operation, improve processing efficiency, and avoid deformation of the carrier tape. Therefore, the processing difficulty of the carrier tape is reduced. Forming lower mold 3 is connected with the frame through the lower mold driving unit, which can realize the distance adjustment between clamping unit 2 and forming lower mold 3, can shorten the stroke distance of forming upper mold, and is conducive to improving processing accuracy.

As shown in FIG. 4 , the clamping unit 2 includes a clamping part 21 and a guide part 23 for guiding the moving direction of the upper mold base body 11 ; the clamping part 21 is connected to the frame through the guide part 23 . The clamping portion 21 refers to the clamping portion 21 formed by a plate body provided with a plurality of guide holes 22 ; each guide hole 22 corresponds to the position of the lower die hole 31 . The guide portion 23 is disposed on both sides of the clamping portion 21 to jointly form a groove.

The advantage of the clamping part 21 being designed in this way is that in the mold pressing stage, the clamping part 21 applies a clamping force to the sheet, the clamping area is large, and the clamping force is applied evenly, which can avoid the displacement of the sheet in the mold pressing stage, and can Improve the product yield; in the blow molding stage, the sheet can be formed by attaching the forming cylinder 12 and the clamping part 21 to avoid air bubbles in the formed carrier tape. The guide part 23 can effectively guide the moving direction of the upper die base body 11, that is, the upper die base body 11 can move along the depth direction of the groove, which is conducive to reducing the dimensional error of the carrier tape and improving the machining accuracy; 11 is positioned to avoid swinging of the forming upper mold 1 during the blow molding stage, so that the device can run reliably, stably and safely.

The forming cylinder 12 includes the upper part of the forming cylinder 12 and the lower part of the forming cylinder 12; the cross-sectional area of the upper part of the forming cylinder 12> the cross-sectional area of the lower part of the forming cylinder 12, and the cross-sectional area of the upper part of the forming cylinder 12> the guide hole The cross-sectional area of 22; The upper part of the forming cylinder 12 abuts against the clamping part 21, which can better form a sealed space between the sheet and the lower forming mold 3; thereby better realize blow molding.

Upper mold drive unit 4 comprises push rod 41, driver and linear bearing, and the connection plate 42 that is connected with frame; Offers guide hole on the connection plate 42; Linear bearing is arranged in the guide hole; One end of push rod 41 and upper mold The base body 11 is connected, and the other end of the push rod 41 passes through the guide hole through a linear bearing; the driver is connected with the frame and the push rod 41 respectively, so that the push rod 41 pushes the upper die base body 11 to move. The linear bearing can further improve the accuracy of the moving direction of the push rod 41, avoid wear of the push rod 41 and the guide hole, and prolong the service life of the device.

As shown in FIG. 5 and FIG. 6 , a gas flow cavity 32 is provided in the forming lower mold 3 ; each hole 31 of the lower mold communicates with the gas input unit through the gas flow cavity 32 . Each lower die hole 31 communicates with the gas input unit through the gas flow cavity 32 , so that the air pressure inside each lower die hole 31 can be uniformed, so that each cavity of the carrier tape has good consistency.

In this embodiment, the forming upper mold, the clamping unit and the forming lower mold are vertically arranged; in practical applications, other angles can also be used between the forming upper mold, the clamping unit and the forming lower mold, for example landscape setting.

Embodiment two

The difference between the carrier tape forming device of this embodiment and Embodiment 1 is that: in the carrier tape forming device of this embodiment, the forming lower die is connected to the frame; the clamping unit is connected to the frame through the clamping drive unit to move the clamping unit to Realize the adjustment of the distance between the clamping unit and the forming lower mold. The rest of the structure of this embodiment is the same as that of Embodiment 1.

The above-mentioned embodiment is a preferred implementation mode of the present utility model, but the implementation mode of the present utility model is not limited by the above-mentioned embodiment, and any other changes, modifications and substitutions made without departing from the spirit and principle of the present utility model , combination, and simplification, all should be equivalent replacement methods, and are all included in the protection scope of the present utility model.

Claims (8)

1. A carrier tape forming device, characterized in that: it includes a frame and a gas input unit, and a forming upper mold, a forming lower mold and a clamping unit connected to the frame; The clamping unit is opposite to the forming lower mold; the distance between the clamping unit and the forming lower mold can be adjusted; The forming upper mold includes an upper mold base and several forming cylinders; the upper mold base is located on the side of the clamping unit away from the forming lower mold; each forming cylinder is arranged side by side on the upper mold base close to the forming lower mold One side; the forming lower mold is provided with several lower mold holes corresponding to the position of the forming cylinder; the upper mold base is connected with the frame through the upper mold driving unit to realize the movement of the upper mold base to drive the forming cylinder Enter the lower die hole or exit the lower die hole; there are gaps between each forming cylinder and the lower die hole wall; The gas input unit is connected with the forming lower mold to realize compressed gas input. 2. The carrier tape forming device according to claim 1, characterized in that: the clamping unit includes a clamping portion; the clamping portion is connected to the frame; the clamping portion is formed by opening a plurality of guide holes The clamping part formed by the plate body; each guide hole corresponds to the position of the lower die hole. 3. The carrier tape molding device according to claim 2, characterized in that: the clamping unit also includes a guide part for guiding the moving direction of the upper mold base body; the connection between the clamping part and the frame means , the clamping part is connected with the frame through the guide part. 4. The carrier tape forming device according to claim 3, characterized in that: the guide part is arranged on both sides of the clamping part to jointly form a groove; the upper die base is connected to the frame through the upper die drive unit , so as to realize that the upper mold base can move along the depth direction of the groove. 5. The carrier tape forming device according to claim 1, characterized in that: the forming cylinder comprises an upper part of the forming cylinder and a lower part of the forming cylinder; the cross-sectional area of the upper part of the forming cylinder>the cross-section of the lower part of the forming cylinder area, and the cross-sectional area of the upper part of the forming cylinder>the cross-sectional area of the guide hole; the upper part of the forming cylinder is offset against the clamping part. 6 . The carrier tape forming device according to claim 1 , wherein a gas flow cavity is provided in the forming lower mold; each hole of the lower mold communicates with the gas input unit through the gas flow cavity. 7 . 7. The carrier tape forming device according to claim 1, characterized in that: the upper mold driving unit includes a push rod and a driver, and a connecting plate connected to the frame; a guide hole is opened on the connecting plate; One end of the rod is connected with the base of the upper die, and the other end of the push rod passes through the guide hole; the driver is connected with the frame and the push rod respectively, so that the push rod pushes the base of the upper die to move; the clamping unit The adjustable distance between the forming lower mold means that the clamping unit is connected with the frame, and the forming lower mold is connected with the frame through the lower mold driving unit to realize the movement of the forming lower mold toward the clamping unit and away from the clamping unit, Thereby, the distance adjustment between the clamping unit and the forming lower mold is realized. 8. The carrier tape forming device according to claim 7, characterized in that: the upper mold drive unit also includes a linear bearing; the linear bearing is arranged in the guide hole; the other end of the push rod is connected from the The guide hole comes out.