JP6067038B2 - Manufacturing method of belt used for mounting and continuous supply of electronic components - Google Patents

Description

  The present invention relates to a method of manufacturing a belt used for mounting and continuous supply of electronic components.

  Both the packaging and transport of electronic components use carrier tape, and a receiving groove for placing electronic components on the carrier tape is opened. The receiving groove is convenient for inserting electronic components and at the same time for removing electronic components. Not only this, but also the influence of the external environment and the fibers of the paper belt itself must be taken into account, so the process of opening the receiving groove on the carrier tape has a direct impact on the quality of the entire carrier belt. Patent Document 1 discloses a method for manufacturing a paper carrier tape. In the first step, a through hole is formed on the base material of the paper carrier tape, and then in the second step, drift is pushed through the through hole, A top receiving recess is formed on the through hole on the carrier tape base material, and the through hole is closed by a part of the paper carrier tape base material. Although this method can form the chip receiving recess with high accuracy and can form a relatively weak portion at the bottom of the chip receiving recess, and at the same time, there can be no hole in the bottom of the chip receiving recess, This method also has the following disadvantages. 1. Although it is necessary to make two holes and the requirement for the identity covered by the two holes is very high, it is difficult to achieve during actual operation, which results in errors. 2. Instead of the process of electronic component products protruding from the bottom of the current recess, the process of sucking directly the parts with strong suction is already mainstream and is used when manufacturing carrier tape with relatively large mold holes Mold stamping distortion is likely to occur in existing stamping processes, or the tonnage of the press must be greatly improved.

Chinese Patent Publication “Patent No. CN100415610 (filed on April 4, 2002)”

  In the present invention, the procedure is simple, the belt is difficult to break during processing, distortion does not easily occur, the mold cavity can be molded once, the error is greatly reduced, and the tonnage requirement for the press is low. It is an object of the present invention to provide a method of manufacturing a belt which has no burr and the like, has a smooth conversion angle, has high dimensional accuracy, and is more convenient for insertion and removal of electronic components to be placed.

  In order to achieve the above object, the present invention employs the following technical means.

A. Changing the moisture content of the paper belt,
B. A step of making a through hole used for belt movement positioning in a paper belt of thickness H1.
C. Using a mold manufacturing apparatus having a coaxially connected crimping part and a drift part, the paper belt is crimped onto the mold seat through the crimping part, and the paper belt is pressed onto the mold seat with the drift part in the thickness direction of the belt, Forms one mold hole used for mounting electronic parts that has a turn angle of the whole connection (turning angle when crimping parts and drift parts are connected) on both the belt surface and the belt, and at the same time the density is paper quality Forming an area larger than the belt, and forming a bottom of the mold cavity having a thickness of H2, an area of the head surface of the drift component being 2 mm ² , and a working surface in which the head surface serves as a stamping; The manufacturing method of the belt used for mounting and continuous supply of an electronic component.

  By implementing the technical means, the present invention By adjusting the water content of the paper quality belt to an appropriate value, the paper quality belt is not easily broken during break stamping, is not easily broken, is not easily broken, can maintain the right angle and smoothness of the turning corner, and the paper quality product Since the burr protrudes at the edge after absorbing water, the above problem can be avoided by keeping the moisture content of the belt higher than the air humidity of the processing environment and always maintaining the water loss state. 2. It is possible to take out the electronic components inside by stamping and molding the mold holes temporarily using a mold manufacturing device, making the thickness H2 appropriate without penetrating the belt, and increasing the suction force appropriately. Can reduce errors, increase dimensional accuracy, save process and reduce static electricity caused by the process, thus better storing electronic components and avoiding damage . 3. By installing the crimping parts, when the mold cavity is pressed and formed, pressure is applied to the belt on both sides of the mold cavity, and by increasing the belt strength on both sides of the mold cavity, the portion of the belt to be pressed is placed on both sides of the mold cavity. It is possible to ensure the dimension of the mold cavity and the smoothness of the edges so that the mold is pressed against the bottom.

  Preferably, the moisture content is increased until it becomes 10 to 15% RH higher than the air humidity in the operating environment of Steps B and C. The moisture content is difficult to break when the carrier groove is opened in the belt, and especially at the turning angle, the corner of the carrier groove can be guaranteed to be kept vertical and smooth, and the mold cavity distortion does not appear and the water absorption It is also possible to avoid the occurrence of burrs caused by.

  Preferably, the head surface of the drift component constitutes a punching surface and a stamping surface whose distance difference exceeds H2 in the thickness direction of the belt, and there is a stamping hole on the mold seat corresponding to the punching surface position. A punching hole is formed on the bottom of the mold hole through a punching surface on the part. The stamping hole refers to a surface of the bottom of the mold hole generated by stamping, and the punching surface refers to an end surface punched out from the bottom of the mold hole.

  Through holes can be installed using infrared or other sensitive methods to check if there are any electronic components in the mold cavity. Tremors and misalignment of the electronic components inside may occur, which in turn can cause them to swing out, so it is necessary to regulate them. If a through hole is installed, a magnet or vacuum electron installed under the belt Adsorption to parts is convenient, electronic parts can be stably put into the mold cavity, and the size of the punching hole is set to the smallest area that can be detected, so there is a probability that dust from the outside will enter Very small.

  During stamping for hole punching, first of all, ensure that it is hard to crack during stamping with the proper water content of the belt, and that it is difficult to cause distortion during stamping and mold release. No burrs are generated. Then, when punching, the stamping surface presses the bottom of the mold hole onto the mold seat, strengthening the strength of the belt on both sides of the punching hole, and the bottom of the mold hole with relatively high density is more punched Easier and less distorted.

  Preferably, H2 is 5 to 20% of H1.

Preferably, a cross-sectional area of the punching hole is 0.1 to 0.4 mm ² .

  Preferably, in step C, the mold cavity is formed by pressing, and at the same time, the drift is already formed by pressing the drift part through the shaping part which is installed in the mold manufacturing apparatus and whose distance in the moving direction of the belt is D. Perform shaping on the immediately adjacent mold cavity, make the area of the cross section where the shaped part extends inside the mold cavity smaller than the area of the stamping surface of the stamping part, and let D be the distance between the two mold holes adjacent to the belt To do.

  By smoothing each surface in the mold cavity through the shaping process, it is possible to prevent the electronic parts from being inserted and removed due to irregularities on the surface with the mold cavity. Since the shaping part and the drift part are installed on the same mold manufacturing device, pressing and shaping operations are performed at the same time, and two mold hole distances are advanced each time, so that error overlap is avoided and the accuracy of the product is greatly improved.

  By implementing the above technical means, the present invention directly presses the belt to form a non-penetrating belt mold hole, especially in the case of a large mold hole, the process is simple and convenient, and the tonnage requirement for the press is low, The dimension of the mold cavity is more stable, the accuracy is higher, there are no burrs, and the conversion angle is vertical and smooth. The primary molding of the stamping structure and the stamping and shaping by the same mold provide higher dimensional accuracy and greatly reduce the probability of misalignment compared to secondary punching operations.

  By implementing the technical means, the present invention By adjusting the water content of the paper quality belt to an appropriate value, the paper quality belt is not easily broken during break stamping, is not easily broken, is not easily broken, can maintain the right angle and smoothness of the turning corner, and the paper quality product Since the burr protrudes at the edge after absorbing water, the above problem can be avoided by keeping the moisture content of the belt higher than the air humidity of the processing environment and always maintaining the water loss state. 2. It is possible to take out the electronic components inside by stamping and molding the mold holes temporarily using a mold manufacturing device, making the thickness H2 appropriate without penetrating the belt, and increasing the suction force appropriately. Can reduce errors, increase dimensional accuracy, save process and reduce static electricity caused by the process, thus better storing electronic components and avoiding damage . 3. By installing the crimping parts, when the mold cavity is pressed and formed, pressure is applied to the belt on both sides of the mold cavity, and by increasing the belt strength on both sides of the mold cavity, the portion of the belt to be pressed is placed on both sides of the mold cavity. It is possible to ensure the dimension of the mold cavity and the smoothness of the edges so that the mold is pressed against the bottom.

It is an overhead view of the belt obtained by Example 1 of the present invention. It is an overhead view of the belt obtained by Example 2 of the present invention. 1 is a cross-sectional view of a belt obtained according to one embodiment of the present invention. It is a cross-sectional sketch of the die manufacturing apparatus in one Example of this invention. It is an implementation figure of the belt manufacturing method shown by one Example of this invention.

  Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

[Example 1]
In the manufacturing method of a belt used for mounting and continuous supply of electronic components shown in FIG. The moisture content of the paper belt 1 is increased to 15% RH of the operating room air humidity, and the paper belt 1 is already placed in a sealed humidity-adjusted space and left for about 1 hour, and then its moisture content is measured. It only has to meet. B. A mold hole 4 is opened by a mold manufacturing apparatus 3 in a paper belt 1 having a water content adjusted thickness of H1, of which H1 is the thickness of a commercially available standardized belt 1, 0.31 mm, 0.43 mm , 0.61 mm, 0.75 mm, and the like, and a coaxially connected crimping part 31 and a drift part 32 are installed on the mold manufacturing apparatus 3. As a specific operation, the paper belt 1 is passed through the crimping part 31. The paper belt 1 is pressed and fixed on the mold seat and pressed against the mold seat by the drift component 32 in the thickness direction of the belt 1 so that both the surface of the belt and the belt are connected to each other. The mold cavity 4 used for mounting the electronic component is formed, and at the same time, the mold cavity bottom 41 having a density higher than other parts of the paper belt 1 and a thickness of H2 is formed. The belt 1 produced according to this embodiment belongs to the large-sized belt 1, that is, the size of the mold cavity 4 is large and generally exceeds 2 mm ² , so the area of the head surface of the drift component 32 is 2 mm. ² or more, and 2 mm ² in this embodiment.

[Example 2]
In the manufacturing method of the belt used for mounting and continuous supply of electronic components shown in the attached FIGS. 1, 2, and 4, first, the moisture content of the paper belt 1 is increased to 10% RH of the air humidity. The moisture content of the belt 1 is measured after the paper belt 1 is placed in a sealed space whose humidity has been adjusted and left for about 1 hour. B. The through hole 2, the mold hole 4 and the punching hole 411 used for positioning the movement of the belt 1 are simultaneously opened through the mold manufacturing apparatus 3 for the paper belt 1 having the thickness H1 whose moisture content has been adjusted. H1 is the thickness of the standardized belt 1 that is commercially available, and can be 0.31 mm, 0.43 mm, 0.61 mm, 0.75 mm, etc. The structure of the mold manufacturing apparatus 3 is as follows: It is as attached FIG. As a specific operation method, the paper manufacturing belt 3 is crimped and fixed on the mold seat through the crimping component 31 using the mold manufacturing apparatus 3 having the coaxially connected crimping component 31 and the drift component 32, and the paper belt 1 is attached to the belt. At the same time as forming the mold cavity 4 used for mounting the electronic component having the whole connecting angle on the surface of the belt and in the belt by pressing on the mold seat with the drift component 32 in the thickness direction of 1. A mold cavity bottom 41 having a density higher than other portions of the paper belt 1 and a thickness of H2 is formed. The belt 1 produced according to this embodiment belongs to the large-sized belt 1, that is, the size of the mold cavity 4 is large and generally exceeds 2 mm ² , so the area of the head surface of the drift component 32 is 2 mm. ^It exceeds ² and is 5 mm ² in this embodiment. The head surface of the drift component 32 is composed of a punching surface 321 and a stamping surface 322 whose distance difference exceeds H2 in the thickness direction of the belt 1, and a stamping hole corresponding to the position of the punching surface 321 is provided on the mold seat. In order to reduce the difficulty of the stamping process as much as possible under the condition that the punching hole 411 is extracted on the die hole bottom 41 through the punching surface 321 on the drift part 32 and the requirement of the die hole 4 is satisfied. the Although set to 5-20% of the H1, 10% in the present embodiment, although cross-sectional area of the punched holes 411 are 0.1 to 0.4 mm ^2, is 0.3 mm ² in this embodiment . The shaping of the mold cavity 4 is performed on the mold manufacturing apparatus 3 and is realized by the shaping component 33 whose distance difference from the center axis of the drift component 32 is D in the movement direction of the belt 1. At the same time, the die hole 4 is formed by pressing the drift part 32 by the simultaneous operation of 33, and at the same time, the shaping part 33 performs shaping on the immediately adjacent mold hole 4 formed by the pressing of the drift part 32 and the belt 1 is adjacent. The distance between the center axes of the two mold cavities 4 is D, that is, the distance between the center axis of the drift part 32 and the center axis of the shaping part 33 is equal to the distance between the two center axes of the adjacent two mold cavities 4. By doing so, stamping, punching and shaping by the same mold can be realized, and the accuracy of the belt 1 becomes higher by advancing the distance between the two mold cavities 4 each time. The probability of occurrence of misalignment is smaller, the area of the cross section where the shaping part 33 extends into the mold hole 4 is smaller than the area of the stamping surface 332 of the drift part 32, and the mold is formed in the mold hole 4 using the shaping part 33. The hole 4 is shaped.

Example 3
In the method of manufacturing a belt used for mounting and continuous supply of electronic components shown in FIGS. 1, 2, and 4, first, the water content of the paper belt 1 is lowered to 8% RH of air humidity. The moisture content of the belt 1 is measured after the paper belt 1 is placed in a sealed space whose humidity has been adjusted and left for about 1 hour. B. The through hole 2, the mold hole 4 and the punching hole 411 used for positioning the movement of the belt 1 are simultaneously opened through the mold manufacturing apparatus 3 for the paper belt 1 having the thickness H1 whose moisture content has been adjusted. H1 is the thickness of the standardized belt 1 that is commercially available, and can be 0.31 mm, 0.43 mm, 0.61 mm, 0.75 mm, etc. The structure of the mold manufacturing apparatus 3 is as follows: It is as attached FIG. As a specific operation, the paper manufacturing belt 3 is crimped and fixed on the mold seat through the crimping component 31 using the mold manufacturing apparatus 3 having the coaxially connected crimping component 31 and the drift component 32, and the paper belt 1 is attached to the belt 1. At the same time, the die hole 4 used for mounting an electronic component having a turning angle of the whole connection is formed on the surface of the belt and in the belt by pressing on the mold seat with the drift component 32 in the thickness direction of A mold cavity bottom 41 having a density higher than that of other portions of the paper belt 1 and a thickness of H2 is formed. The belt 1 produced according to this embodiment belongs to the large-sized belt 1, that is, the size of the mold cavity 4 is large and generally exceeds 2 mm ² , so the area of the head surface of the drift component 32 is 2 mm. ² and 6 mm ² in this embodiment. The head surface of the drift component 32 is composed of a punching surface 321 and a stamping surface 322 whose distance difference exceeds H2 in the thickness direction of the belt 1, and a stamping hole corresponding to the position of the punching surface 321 is provided on the mold seat. In order to reduce the difficulty of the stamping process as much as possible under the condition that the punching hole 411 is extracted on the die hole bottom 41 through the punching surface 321 on the drift part 32 and the requirement of the die hole 4 is satisfied. setting 5 to 20% of the H1, but 18% in the present embodiment, although cross-sectional area of the punched holes 411 are 0.1 to 0.4 mm ^2, is 0.25 mm ² in this embodiment . The shaping of the mold cavity 4 is performed by the shaping component 33 which is installed on the mold manufacturing apparatus 3 and whose distance difference from the drift component 32 is D in the movement direction of the belt 1. At the same time, the mold cavity 4 is formed by pressing the drift part 32, and at the same time, the shaping part 33 performs shaping on the immediately adjacent mold hole 4 formed by pressing the drift part 32, thereby smoothly shaping. Next, the shaping component 33 is connected to the mold manufacturing apparatus 3 through an elastic structure. The distance between the central axes of the two adjacent mold cavities 4 of the belt 1 is D. By stamping, punching and shaping with the same mold, the distance between the two mold cavities 4 is advanced each time, so that the accuracy of the belt 1 is higher. Thus, the probability of occurrence of misalignment is smaller, and the area of the cross section where the shaping part 33 extends into the mold hole 4 is smaller than the area of the stamping surface 332 of the drift part 32. Then, shaping the mold cavity 4 is performed.

Claims (5)

A. Changing the moisture content of the paper belt (1);
B. opening a through-hole (2) used for belt (1) movement positioning in a paper quality belt (1) of thickness H1;
C. Using a die manufacturing apparatus (3) having a coaxially connected crimping part (31) and a drift part (32), the paper belt (1) is crimped onto the mold seat through the crimping part (31), and the paper belt (1). Is pressed onto the mold seat with the drift component (32) in the thickness direction of the belt (1), and the mold hole (4 used for mounting the electronic component having the entire connection angle between the belt surface and the belt) ) And at the same time forming other portions having a density higher than that of the paper belt (1) and forming a mold hole bottom portion (41) having a thickness of H2, the head surface of the drift component (32) the area of Ri 2mm ² der,
The head surface of the drift component (32) is composed of a punching surface (321) and a stamping surface (322) whose distance difference exceeds H2 in the thickness direction of the belt (1). 321) There is a stamping hole corresponding to the position of the electronic component 321), and the punching hole (411) is extracted on the die hole bottom (41) through the punching surface (321) on the drift component (32). And manufacturing method of belt used for continuous supply.   The method for manufacturing a belt according to claim 1, wherein the moisture content is increased to 10 to 15% RH higher than the air humidity in the operating environment of steps B and C.   The belt manufacturing method according to claim 1, wherein the H2 is 5 to 20% of the H1. The cross-sectional area of the punched holes (411) is 0.1 to 0.4 mm ^2, the manufacturing method of the belt according to claim 1, characterized in that. In the step C, the mold hole (4) is formed by pressing, and at the same time, it is installed on the mold manufacturing apparatus (3), and the distance difference of the drift component (32) is D on the moving direction of the belt (1). The shaping part (33) performs shaping on the immediately preceding adjacent mold hole (4) formed by pressing the drift part (32), and the shaping part (33) extends in the mold hole (4). area smaller than the area of the stamping surface of the drift part (32) (332), the distance between two adjacent mold cavities (4) of the belt (1) is D, it in claim 1, wherein The manufacturing method of the belt of description.

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