CN1115289C - Feed belt of electronic elements and its making method - Google Patents
Feed belt of electronic elements and its making method Download PDFInfo
- Publication number
- CN1115289C CN1115289C CN99113951A CN99113951A CN1115289C CN 1115289 C CN1115289 C CN 1115289C CN 99113951 A CN99113951 A CN 99113951A CN 99113951 A CN99113951 A CN 99113951A CN 1115289 C CN1115289 C CN 1115289C
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- feeding belt
- belt
- idiosome
- make
- cool
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Abstract
The present invention provides a novel feeding belt of electronic elements and a manufacturing method thereof. The feeding belt is made from PP plastic, PP elastomer and pigment by a specific technological method. The method comprises: PP plastic granules, the PP elastomer and pigment of a raw material are mixed according to certain proportion; a feeding belt bland body is extruded out by an extruder; after being cooled by a cold water tank, the belt bland is stretched and shaped to the desired thickness by hot water at 300 DEG C; after being cooled by the cold water tank, the belt blank is shrunk and shaped by a high-temperature closed baking oven at a high temperature of 300 DEGC for about 30 seconds; then, the belt blank is cooled by the cold water tank; the belt blank is cut to the required width by a strip separator; desired element positioning holes and material placing holes are punched on the belt blank, and the belt blank is coiled.
Description
Technical field
The present invention relates to a kind of feed belt of electronic elements manufacture method.
Background technology
In electron trade, for realizing the high efficiency automated assembly of electronic component, utilizing the feeding belt delivery element to grasp for the instrument parts is a kind of important means.The many genus of electronic component are tiny and accurate, therefore electronic component need be installed in mostly on a normalization, the immobilized feeding belt, make element corresponding instrument parts in course of conveying that the feed and the installation of high precision and pinpoint accuracy be arranged by its normalization and immobilization.
Traditional electronic component (as electric capacity, resistance etc.) feeding belt, it mainly is to be combined into overlapping shape by the gluing of the multilayer scraps of paper, and pressurized adhesion, being waxed and make it be the light face in the surface, carries out the itemize cutting then, is wound into tubular at last.The major defect of this traditional feeding belt is:
One, because paper material comprises a large amount of fibers, therefore also be dust-like behind the fibrous refinement, draw or when clamping resistance, capacity cell, can adsorb a large amount of fibre dusts simultaneously at instrument parts (mostly being the magnetic suction nozzle), thereby cause blocking parts, influence the degree of precision of its accuracy rate and operation.
Two, paper material is subjected to the influence of external factors such as temperature (expanding with heat and contract with cold) and humidity easily in manufacturing process, comprises the breathing of paper material, thereby influences the accuracy rate of element assembling and the degree of precision of operation.
Three, paper material is received with adhesive tape bundle after rolling usually, and when the dismounting adhesive tape, adhesive tape is easy to adhere on the paper material, influences the feed progress of feeding belt.
Summary of the invention
In view of the foregoing, the object of the present invention is to provide a kind of method of making feed belt of electronic elements, it can reduce external physical factor effects such as feeding belt is expanded with heat and contract with cold in manufacturing process, thereby reduces the influence to element assembling accuracy rate and operation degree of precision.
Above-mentioned purpose is achieved through the following technical solutions.
A kind of method of making feed belt of electronic elements is provided, which comprises at least:
Acrylic plastering grain, polypropylene elastomer and raw material look mother are mixed by a certain percentage;
Extrude the feeding belt idiosome with extruder, make it be normalized band shape;
Cool off through cold rinse bank;
This feeding belt idiosome is finalized the design to desired thickness with 300 ℃ of extensions of hot blast;
Cool off through cold rinse bank;
Make the feeding belt idiosome shrink moulding by the airtight baking oven of a high temperature, high temperature is with 250 to 300 ℃ and continue 30 ± 5 seconds, so that feeding belt in use has extremely low shrinkage percentage;
Cool off through cold rinse bank again;
Be cut to required width through banding machine;
Make feeding belt form required element knock hole and material placing hole by punching press, and batched.
Above-mentioned resistance, electric capacity feeding belt manufacture method, its composition of raw materials adopts acrylic plastering grain, the polypropylene elastomer of 18-22% and the raw material look mother of aequum of 76-80%.
The present invention according to the material high-temperature shrinkage origin cause of formation, be the mechanism that the material contained humidity is evaporated back material molecule super nearly motion, when operation in advance, just will hang down the molecule evaporation of evaporation degree, thereby in the scope that is not higher than 170 ℃ of the used temperature of the present invention, material difficulty has shrink space.End is got up, and advantage of the present invention is as follows:
One, the feeding belt that utilizes the present invention to make is lower with respect to general plastic cement system feeding belt (Rockwell hardness 85-90) hardness, and its Rockwell hardness is about 60-70, helps the drawing of required element knock hole and material placing hole; Be firm also simultaneously than paper material.
Two, the feeding belt material characteristic of utilizing the present invention to make can reduce the interference of extraneous moist factor.
Three, the adsorbed fibre dust of instrument parts in the time of can reducing the electronic component assembling, thus its assembling accuracy rate and operation degree of precision improved.
Four, in the feeding belt manufacturing process, external physical factor effect such as can reduce that feeding belt is expanded with heat and contract with cold, thus reduce influence to element assembling accuracy rate and operation degree of precision.
Five, the feeding belt finished product that utilizes the present invention to make is not easy to take place the phenomenon that adhesive tape after-tacks.
Description of drawings
Describe preferred embodiment of the present invention below with reference to accompanying drawings in detail, in the accompanying drawing:
Fig. 1 is the diagram of circuit of the feeding belt manufacture method of a preferred embodiment of the present invention;
Fig. 2 is the partial perspective view that utilizes the feeding belt of the preferred embodiment that the present invention makes.
The specific embodiment
Referring to Fig. 2, shown in the label 1 is the part of a feed belt of electronic elements.Feeding belt 1 along its both sides respectively at certain intervals punching press knock hole 11 and material placing hole 12 are arranged.Each knock hole 11 is suitable for connecting, thereby playing the role of positioning with the belt conveyor of conveyer (not shown go out) hook.Each material placing hole 12 is used for plugging the electronic component of resistance, electric capacity and so on.During work, feeding belt 1 is arranged on the conveyer belt, belt conveyor involves feeding belt 1 and moves in the lump, thereby a toolroom machine (not shown go out) can order be drawn the element that is inserted in the material placing hole one by one.This feeding belt 1 is made by 78% HOMO-PP plastics, 20% PP elastic body and 2% look mother.
Feed belt of electronic elements 1 shown in Figure 2 can be made by process shown in Figure 1.At first, 78% HOMO-PP plastic pellet, 20% PP elastic body and 2% look mother are mixed in the material tube.Then, mixed raw material is squeezed into the feeding belt idiosome of specification band shape with extruder, and is admitted to cooling in the cold rinse bank.Cooled band embryo extends typing to required thickness by 300 ℃ hot blast, and sends into cooling in the cold rinse bank again.Afterwards, the band embryo is sent into 300 ℃ the airtight baking oven of high temperature, carry out hot blast and shrink typing, time length is 30 seconds, then will be with embryo to send into cooling in the cold rinse bank once more.Cooled band embryo is cut to required width through banding machine.At last, make the feeding belt idiosome form required element knock hole and material placing hole by punching press, and batched.In use have extremely low shrinkage percentage by the feeding belt of making like this, the merits and faults of it and traditionally on paper feeding belt is compared as follows:
| Extraneous weather effect | Fiber fine powder residual rate | Tension intensity (Kg/mm) | Punching processing | In the processing procedure to the influence of environment | |
| The PP plastics | Do not have (excellent) | 0% (excellent) | 15 (excellent) | Stamping knife group (excellent) not easy to wear | Do not have (excellent) |
| Papery | Humidity 90% easily expands | 1％ | 5 | Because of there being fiber easy to wear | Add solvent, thermoplastic and dust pollute |
| Benefit analysis | Because of being finalized the design through 300 ℃ of high-temperature hot-airs | Because of adding the PP elastic body | Because of extending through 300 ℃ of high-temperature hot-airs | Because of adding the PP elastic body | Because of belonging to C-H class plastics, can reclaim burning by 100 % |
Claims (3)
1. a method of making feed belt of electronic elements is characterized in that, which comprises at least:
Acrylic plastering grain, polypropylene elastomer and raw material look mother are mixed by a certain percentage;
Extrude the feeding belt idiosome with extruder, make it be normalized band shape;
Cool off through cold rinse bank;
This feeding belt idiosome is finalized the design to desired thickness with 300 ℃ of extensions of hot blast;
Cool off through cold rinse bank;
Make the feeding belt idiosome shrink moulding by the airtight baking oven of a high temperature, high temperature is with 250 to 300 ℃ and continue 30 ± 5 seconds, so that feeding belt in use has extremely low shrinkage percentage;
Cool off through cold rinse bank again;
Be cut to required width through banding machine;
Make the feeding belt idiosome form required element knock hole and material placing hole by punching press, and batched.
2. the method for claim 1 is characterized in that, its composition of raw materials adopts acrylic plastering grain, the polypropylene elastomer of 18-22% and the raw material look mother of aequum of 76-80%.
3. method as claimed in claim 1 or 2 is characterized in that, described acrylic plastering is a kind of Noblen plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99113951A CN1115289C (en) | 1999-08-02 | 1999-08-02 | Feed belt of electronic elements and its making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99113951A CN1115289C (en) | 1999-08-02 | 1999-08-02 | Feed belt of electronic elements and its making method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1291579A CN1291579A (en) | 2001-04-18 |
| CN1115289C true CN1115289C (en) | 2003-07-23 |
Family
ID=5277086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99113951A Expired - Fee Related CN1115289C (en) | 1999-08-02 | 1999-08-02 | Feed belt of electronic elements and its making method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1115289C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942010B (en) * | 2012-10-26 | 2015-11-18 | 苏州柯创电子材料有限公司 | LCD optical film cuts by belt conveyor and production method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3941238A (en) * | 1973-11-09 | 1976-03-02 | The Laitram Corporation | Integral hinged food conveyor belt construction with levitation means |
| EP0209144A2 (en) * | 1985-07-19 | 1987-01-21 | Electro Scientific Industries, Inc. | Device for testing and/or treating microcomponents |
| JPH0958835A (en) * | 1995-08-29 | 1997-03-04 | Bando Chem Ind Ltd | Conveying belt |
-
1999
- 1999-08-02 CN CN99113951A patent/CN1115289C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3941238A (en) * | 1973-11-09 | 1976-03-02 | The Laitram Corporation | Integral hinged food conveyor belt construction with levitation means |
| EP0209144A2 (en) * | 1985-07-19 | 1987-01-21 | Electro Scientific Industries, Inc. | Device for testing and/or treating microcomponents |
| JPH0958835A (en) * | 1995-08-29 | 1997-03-04 | Bando Chem Ind Ltd | Conveying belt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1291579A (en) | 2001-04-18 |
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