TW528712B - Tape feeder and bonding device with the tape feeder - Google Patents

Abstract

The present invention provide a tape feeder capable of feeding a carrier tape smoothly by effectively preventing the carrier tape from being caught into a sprocket even when a thin carrier tape is fed. A sprocket 11 of the tape feeder 10 is clockwise rotated with an axis of a pin slot driving shaft 22 as the rotating center. When the carrier tape 20 is fed from the left side along a guide rail, a plurality of teeth 11a of the sprocket 11 are engaged in order with perforations provided along both side edges of the carrier tape 20 to feed the carrier tape 20 in order to the right side, a wire 14 extending along the carrier tape 20 is provided under the carrier tape 20 fed drivingly by the sprocket 11. The carrier tape 20 is supported by the wire 14 at the time point when departing from the teeth 11a of the sprocket 11 and the perforations 20a of the carrier tape 20 are extracted surely from the teeth 11a of the sprocket 11.

Description

528712 _Case No. 90107706_ Amendment 5 、 Explanation of Invention (1) Technical Field of the Invention The present invention relates to a belt feeding device for a conveyer belt, and particularly relates to the conveyance of a conveyer belt with perforations along the widthwise side. The belt device and the joint device provided with the belt device. Prior art It is known from the prior art that there is a belt feeding device for precisely conveying a tape package (TCP) and the like, and conveys a conveyor belt having perforations along the widthwise side by a pair of sprocket wheels. FIG. 7 is a diagram of a previous belt feeding device. As shown in FIG. 7, the previous belt feeding device 40 has a pair of sprocket wheels 11 and 11 provided in a pair of guide rails 34 and 34 of a guide conveyor belt 20 and has a plurality of perforations 20 a that engage the conveyor belt 20. Tooth 1 1 a; and a pair of nip rollers 1 2 and 12 to clamp the conveyor belt 20 between the sprocket wheels 1 1 and 11. The sprocket wheels 1 1 and 1 1 rotate around the axis thereof by the bolt groove driving shaft 2 2. However, if the previous belt feeding device 40 described above is extremely thin (for example, when the thickness is 50 # m or less), the belt 20 is caught in the teeth of the sprocket 11 due to deformation of the perforation 20 a, etc. 11a, there is a problem that the conveyor belt 20 is caught in the sprocket 11, 11 and the guide 34, 34 as shown by the dotted line in FIG. DISCLOSURE OF THE INVENTION The present invention has been made in consideration of the above-mentioned problems, and an object thereof is to provide a belt feeding device and a bonding device provided with the belt feeding device, which can effectively prevent the belt from being caught in a sprocket even when conveying a thin belt, and can smoothly convey the belt. conveyor. The present invention provides a belt feeding device, comprising: a sprocket having a plurality of teeth engaged with perforations provided on the side of the width direction of the conveyor belt; and a pull-out member arranged on the sprocket side of the conveyor belt to The conveyor belt conveyed in the state of the teeth of the sprocket is held by the sprocket.

O: \ 70 \ 70399-911002.ptc Page 4 528712 Case No. 90107706 Month Amendment V. Description of the invention (2) Send out a certain conveying path, and pull out the feedthrough L of the conveying belt from the above-mentioned teeth. In the present invention, it is preferable that the extraction member is disposed on the center side of the width direction of the belt with respect to the sprocket. It is also preferable that the sprocket has grooves provided along the outer periphery of the teeth on the central side of the width direction of the conveyor belt, and the extraction member is disposed in a state of being inserted into a part of the grooves. Further, it is preferable that the extraction member is a metal wire extending along the conveyor belt. The present invention also provides a tape feeding device, which is a bonding device for bonding a semiconductor element to a conveyor belt, which is characterized by having a tape feeding device for transferring the conveyor belt to a bonding position; and a bonding tool for bonding the semiconductor element to the transfer device. The conveyor belt of the joining device; the belt feeding device includes: a sprocket having a plurality of teeth engaged with perforations provided on a side of the width direction of the conveyor belt; and a pull-out member arranged on the sprocket side of the conveyor belt, The conveyor belt conveyed under the state of the teeth of the sprocket is delivered from the sprocket while maintaining a certain conveyance path, and the perforations of the conveyor belt are pulled out from the teeth. According to the present invention, since a pull-out member is provided on the sprocket side of the conveyor belt driven by the sprocket conveyor, the perforations of the conveyor belt are pulled out from each tooth, so even if the conveyor belt is caught in the teeth of the key wheel, The key wheel keeps the path out of the conveyor belt, so it can effectively prevent the conveyor belt from being caught in the sprocket, and can smoothly convey the conveyor belt. «Brief Description of the Drawings Figure 1 is a diagram showing the essential parts of an embodiment of a tape feeding device according to the present invention. FIG. 2 is a sectional view taken along the line I I _ I I in FIG. 1. FIG. 3 is an enlarged sectional view of a part III in FIG. 2. FIG. 4 shows the overall structure of an internal wire bonding device provided with the tape feeding device shown in FIG. 1. FIG.

O: \ 70 \ 70399-911002.ptc Page 5 528712 Case No. 90107706 Month Amendment V. Description of Invention (3) Schematic drawing. FIG. 5 is an enlarged perspective view of part V of FIG. 4. FIG. 6 is a diagram showing the main parts of another embodiment of the tape feeding device shown in FIG. 1. FIG. FIG. 7 is a diagram of a previous belt feeding device. Best Mode for Carrying Out the Invention An embodiment of the present invention will be described below with reference to the drawings. 1 to 5 are explanatory views of an embodiment of a tape feeding device according to the present invention. First, an internal wire bonding device having a tape feeding device according to this embodiment will be described with reference to Figs. 4 and 5. Fig. 4 is a schematic view showing the overall structure of the internal wire bonding device. FIG. 5 is an enlarged perspective view of part V of FIG. 4. The internal wire bonding device 30 shown in Figs. 4 and 5 includes a feed roll 31 and a winding belt 20, and an internal lead 20b is formed on the surface in advance (see Fig. 5). The conveyor belt 20 wound on the feed roll 31 is guided to the guides 34 and 34 by the tension rollers 33 and 33. After being conveyed along a certain conveying path of the guides 34 and 34, the tension rollers 35 and 35 are used to take up the reel. 32 take-ups. Here, a joint portion 39 is provided at an intermediate position between the guides 3 4 and 3 4. The bonding portion 39 includes a mounting table 37 for mounting the semiconductor device 20c (refer to FIG. 5), and a bonding tool 38 for bonding the semiconductor device 20c mounted on the mounting table 37 and the inner lead 20b of the transmission tape 20. A belt guide 36 having an opening 3 6 a is provided below the joining tool 38. In addition, the downstream positions and upstream positions in the conveying direction of 3, 4 and 3 are provided with belt feeding devices 10, 10, and 20, respectively. The belt feeding device 10, 10 has: a pair of sprocket wheels 11, 11 having a plurality of teeth 11a, which are engaged with perforations 20a (refer to FIG. 5) provided along both sides of the conveyor belt 20, and a pair of nip rollers 1 2 , 1 2 ， Clamp the conveyor belt 2 between sprocket 1 1 and 1 1 to prevent losing

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V. Description of the invention (4) The belt feeding 20 floats up. Secondly, according to Fig. 1 to Fig. N-10. Fig. 1 is a diagram of the main parts of the belt feeding device 10 shown in Fig. 4 and Fig. 4 and Fig. 5, and includes the belt feeding device 10 shown in Fig. 5 from the guides 34 and 34, that is, the sprocket 1. Figure of 1. Fig. 2] A cross-sectional view of the inner side of the pair of sprockets 11 and 11 shown in Figs. 4 and 5 and the front face shown in Fig. 5 along line 1 1-II in Fig. 1 shows part II in Fig. 4 1 Zoom in ^ The sprocket wheels 1 1, Π on both sides. Fig. 3 is a sectional view of Fig. 2 and Fig. 2 of Fig. 2 / in which one of the sprocket u = "belt feeding device 10"! 〇 Has a pair of sprocket 11. The assembly 23 is fixed (a sprocket on the right side in FIG. 2), and a bearing 22 mounted on the side plate 21 is borrowed. On the other side, the bearing assembly 25 key wheel 1 1 (the sprocket on the left side of FIG. 2) of the bolt-groove driving shaft supported by its axis as the center is supported by the side plate 21 as the center of rotation. The sprocket 11 is coaxial and fits on its axis 24, and is inserted through her. In addition, the other sprocket Η is equipped with a bolt groove to buckle. The m 2 slides in the direction of the axial axis and is fastened to one side end (the right end in FIG. 2) of the rotating square movable shaft 22, and is equipped with a leather ^, '凡' 皮 可 2 7 'can be motor (not shown) ) Drive the bolt groove drive shaft LL ° and the belt feeding device 10, 10 has a pair of nip rollers 12, 12 to clamp the conveyor belt 20 between the sprocket n, u, and. The nip rollers 1 2 and 1 2 can be rotated and supported by being mounted on the shafts 2 8 and 2 8 of the support arms 2 9 and 2 9 respectively. In addition, grooves 12a and 12a are provided on the outer sides of the nip rollers 1 and 12 to accommodate the teeth na and iia of the sprocket wheels 11 and 11. Here, the lower side of the conveyor belt 2 driven by the sprocket 1 1 and 1 1 is provided with a metal wire (pulling member) 1 4 (refer to FIG. 1 and FIG. 3). The tooth 1 1 a is pulled out of the perforation 2 0a of the conveyor belt 20, and is pulled from the sprocket to maintain

m

II

III II O: \ 70 \ 70399-911002.ptc Page 7 528712 Amendment V. Description of the invention (5) Conveying at a certain height 13a, 15a, roller 1 3, 1 5 2 1 (refer to Figure 1 8 connection Yu Gu 19, with the width of the spring conveyor 20 and shown in Fig. 3, and metal wire 1 4 Next, in Fig. 1, the axis of ϋ 2 2 is 3, 4, 3 4 along the conveyor 2 0, conveyor 2 From 0 to right, the perforation 20 of the branch of line 14 is conveyed along the state of the key line 14, and the conveyance belt 20 below the conveying belt 20 has a certain height of £ 20,90,107,706. In the state of each sprocket u and each tooth na: Therefore, the metal wire 14 is wound around the V grooves I of the rollers 1 3 and 15 and both ends are fixed to the metal wire fixing members 16, 17 and 2 and 2 The metal wire fixing member 16 is fixed to the side plate 21, one. The other metal wire fixing member 丨 7, the spring fixing member on the spring 21, (refer to FIG. 2) = the tension of the metal wire 14. The metal wire 14 is arranged on the inner side of each tooth 11a of the key input wheel 11. Specifically, as shown in Fig. 1, the inner side of each tooth 11a of the wheel 11 is provided with a groove along its outer periphery. 1b is arranged from a part of the state of the insertion groove 11b. The function of the belt-feeding device ίο and ίο with this structure. The sprocket u, u of the I-belt device 10, 10 rotates in the clockwise direction of the shaft driven by the bolt groove. When the conveyor belt 20 is guided from the left to the Japanese inch, the sprocket 11. The plural teeth la of u are sequentially engaged with the perforations 20a (refer to FIG. 5) provided on both sides, and the conveying side is conveyed in sequence. The lower side of the conveyor belt 20 driven by the wheel 11 ^ 11 is provided with a gold wheel reel 20 Extended, and the belt 20 meshing with each tooth na of each sprocket u is held by the gold when leaving each sprocket 丨 丨 each tooth 11a, so the belt 20 is surely pulled out from each sprocket 11 each tooth 11a The ">" state is provided on the transmission side driven by the sprocket 11, 11 with a metal wire 14 extending along the conveyor belt 20, so even when entering the teeth 11a of the sprocket 11, it can be driven from each chain. The wheel 丨 丨 keeps sending out the conveyor belt 2 0, so it can effectively prevent the conveyor belt 2 〇

I

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528712 Case No. 90107706 said Amendment V. Description of the invention (6) Engage the sprocket 1 1 and 1 1 and smoothly convey the conveyor belt 20. Other Embodiments Next, another embodiment of the tape feeding device according to the present invention will be described with reference to FIG. 6. Other embodiments of the present invention are similar to the embodiment shown in Figs. 1 to 5 except that the extraction member uses a tip instead of a metal wire. In other embodiments of the present invention, the same portions as those in the embodiments shown in Figs. 1 to 5 are given the same reference numerals, and detailed descriptions are omitted. Fig. 6 is a view similar to Fig. 1 showing the main parts of a tape feeding device 10 and 10 according to another embodiment of the present invention. As shown in FIG. 6, the lower side of the conveyor belt 20 driven by the sprocket wheels 1 1 and 1 1 of the belt feeding devices 10 and 10 is provided with a tip (pulling member) 4 extending along the conveyor belt 20. The perforation 20a of the conveyor belt 20 is pulled out from each tooth 1a, and the conveyor belt 20 is conveyed while being maintained at a certain height from each sprocket 11 to mesh with the teeth 11a of each sprocket 11. Here, the tips 4 2 and 4 2 are respectively fixed in the cylindrical support members 4 1 and 4 1 by bolts 4 3 and 4 3. The cylindrical supporting members 4 1 and 4 1 are fixed to the side plates 2 1 and 2 1 (refer to FIG. 2). The tips 42 and 42 are arranged inside the teeth 11 a of the sprocket 11 in the width direction of the conveyor belt 20. Specifically, as shown in FIG. 6, a groove 11b is provided on the inner side of each tooth 11a of each sprocket 11 along its outer periphery, and the tips 42 and 42 are arranged in a state where they are inserted into a part of the groove 1 1b. Further, the tips 42 and 42 do not necessarily need to be provided on both the downstream side and the upstream side in the conveying direction of the sprocket 11, 11 and the tips 42 on the upstream side in the conveying direction may be omitted. Or tip 42, the perforation 20a of the conveyor belt 20 is pulled out from the teeth 11a of the sprocket 11, and a blower mechanism 45 is provided to blow compressed gas (air or ionized air, etc.) from below to the conveyor belt 20. this

O: \ 70 \ 70399-911002.ptc Page 9 528712 _Case No. 90107706_Year Month and Revise_ V. In the description of the invention (7), the conveyor belt 20 was lifted due to the blowing effect of compressed gas, so the ratio In the case of only the metal wire 14 or the tip 4 2, it is easy to pull out the conveyor belt 20 perforation 2 0a from the tooth 1 1 a of the sprocket 11 1. When the ionized air for compressed gas is blown, even if static electricity is generated when the perforation 20a is pulled out from the tooth 11a, the static electricity can be removed, and it can be prevented from being bonded to the conveyor belt 20 or the internal lead of the conveyor belt 20 due to the generated static electricity. The 2 Ob semiconductor element 20c is missing due to electrostatic breakdown. 1 and 6, the sprocket 11 is arranged on the lower side of the conveyor belt 20, but it does not necessarily need to be arranged on the lower side. For example, it may be arranged on the upper side of the conveyor belt 20. This arrangement can be achieved by arranging the feeding device 10 shown in Figs. 1 and 6 upside down. At this time, when the belt feeding device 10 shown in Figs. 1 and 6 is arranged upside down, it is preferable to provide a mechanism that biases the nip roller 12 to the sprocket 11 side with a spring or the like.

O: \ 70 \ 70399-911002.ptc Page 10 528712 Case No. 90107706 Revised drawing Simple description of component symbol description 10 Feeding device 11 Sprocket 1 la Tooth lib groove 12 Clamp roller 12a Groove 13 Roller 13a V groove 14 Metal wire 15 Roller • 15a V groove 16 Metal wire fixing member 17 Metal wire fixing member 18 Spring 19 Fixing member 20 Conveyor belt 20a Perforation 20b Internal lead 20c Semiconductor element 21 Side plate 22 Slotted drive shaft 23 Bearing assembly 24 Bolt and groove fastener 25 Bearing assembly 26 Pulley 27 Belt 28 Shaft 29 Support arm 30 Internal wire bonding device 31 Feed roll 32 Take-up roll 33 Pull roller 34 Guide rail 35 Pull roller 36 Belt guide 36a Open π 37 Mounting table 38 Splicing tool 39 Splicing section 40 Conventional tape feeding device 41 Cylindrical support member 42 Tip 43 Screw 45% \ / E wind mechanism

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Claims (1)

528712 Case No. 90107706 Amendment 6. Scope of patent application 1. A plurality of inward and outward belts; and a device for pulling out the structure, the toothed sprocket is perforated to 2. pieces of the upper sprocket belt, 3. has the settings. 4. The above 5. Its special feature is to maintain a certain conveying perforation for each of the above mentioned sprocket. If the application is applied to the above ditch, the patent scope describes the key wheel with each tooth of the patent scope and the above-mentioned extraction application scope is based on the previous joint device. Conveying half of the output to the upper part of the belt is equipped with a splicing belt. The above belt width is pulled out to describe the key wheel belt device. It is a side piece. Each of the above features is: The conveyor belt provided on the widthwise side of the conveyor belt is arranged on the side of the key wheel, and the conveyor belt conveyed in a state of ringing teeth is sent out from the path, and the belt feeding device of the conveyance item 1 is pulled out from the teeth. Wherein, the pull-out structure is disposed on the center side of the width direction of the conveyor belt. The belt feeding device according to item 2, wherein the sprocket is a belt feeding device according to any one of items 1 to 3 in a state in which a member on the center side of the width direction of the conveyor belt is inserted along a portion of the groove, and the belt feeding device according to any one of items 1 to 3 is described. The metal wire of the conveyor belt. The semiconductor device is bonded to a conveyor belt, and the belt is transferred to a bonding position; and the conductive component is bonded to the transfer device and has a sprocket with a plurality of teeth that meshes with perforations along the set; and the conveyor belt is arranged at The conveyor belt conveyed by the key wheel side ′ in a state of spitting teeth O: \ 70 \ 70399-911002.ptc Page 12 528712 Case No. 90107706 Month / Date Amendment O: \ 70 \ 70399-911002.ptc Page 13