An ultra-precision flat-plate carrier forming machine

Abstract

The present invention relates to an ultra-precision flat-plate carrier forming machine, characterized by: a discharge mechanism for discharging the carrier tape; a heating mechanism for heating and softening the part-accommodating slots set on the carrier tape; a slot-forming mechanism for forming the part-accommodating slots and punching index positioning holes; a punching mechanism for punching holes in the middle of the bottom of the part-accommodating slots; a heating motion drive mechanism, a forming motion drive mechanism, and a punching motion drive mechanism driven by the same power source, comprising a main motor, an upper spindle, and a lower spindle; the main motor is connected to a driving wheel via a reducer, and the driving wheel is synchronously connected to a first driven wheel on the upper spindle and a second driven wheel on the lower spindle via a transmission belt; an upper heating cam, an upper forming cam, and an upper punching cam are fixedly mounted on the upper spindle in sequence, and a lower heating cam and a lower forming cam are fixedly mounted on the lower spindle in sequence; and a belt-pulling mechanism is used to transfer one workstation of the carrier tape to another. The present invention achieves ultra-precision processing of the carrier tape.

Description

Technical Field

[0001] The invention belongs to the technical field of carrier tape processing, and in particular relates to an ultra-precision flat-plate carrier tape forming machine. Background Art

[0002] Carrier tape is a strip-shaped product used in the field of electronic packaging. It has a specific thickness and has part-receiving slots for holding electronic components and positioning holes for indexing and positioning distributed evenly along its length.

[0003] With the development of the electronics market, various electronic components are becoming increasingly smaller and more sophisticated, placing higher standards on carrier tape processing and cleanliness. Even some precision electronic components have specific requirements for the carrier tape's antistatic level. To meet the varying needs of different customers, different carrier tape materials are used. There are two main types: plastic carrier tape and paper carrier tape. Currently, the main materials for plastic carrier tape on the market are PC (polycarbonate), PS (polystyrene), and ABS (Acrylonitrile Butadiene Styrene Plastic). Different molds are manufactured and different carrier tape materials are used to meet the specific requirements of different electronic components.

[0004] Currently, there are two types of carrier tape forming machines on the market. One is the roller-type carrier tape forming machine. This type of forming machine can produce precision carriers and accurately control the size. However, the raw material is heated as a whole during the roll-forming process, which can cause the carrier tape to bend too severely. Some special-shaped or deep molds are difficult to demold, and there are problems such as poor forming, too thin a bottom, and insufficient strength. The other type is the flat-plate carrier tape forming machine. Compared with the roller-type forming machine, this type of forming machine is slower, but it is very friendly to some oversized parts. Through local heating and forming, the bending and deformation of the carrier tape can be better avoided. However, there is a problem: the stroke control of the existing flat-plate carrier tape forming machine is generally achieved through separate pneumatic control, resulting in the flat-plate carrier tape forming machine being weaker than the roller-type carrier tape forming machine in terms of precision control, and the efficiency is low, which cannot meet the high precision requirements of customers. Summary of the Invention

[0005] In view of the above technical problems, the present invention provides an ultra-precision flat-plate carrier forming machine.

[0006] The above-mentioned purpose of the present invention is achieved through the following technical solutions:

[0007] An ultra-precision flat-plate carrier forming machine comprises a feeding mechanism, a heating mechanism, a groove forming mechanism, a punching mechanism, and a belt pulling mechanism; the feeding mechanism, the heating mechanism, the groove forming mechanism, the punching mechanism, and the belt pulling mechanism are sequentially connected and arranged;

[0008] The unloading mechanism is used to unroll the disc-shaped carrier raw material;

[0009] The heating mechanism is composed of a heating actuator and a heating motion drive mechanism, and is used to heat and soften the part receiving slot position set on the carrier before forming; the slot forming mechanism is composed of a slot forming actuator and a forming motion drive mechanism, and is used to form the part receiving slot at the heated and softened position of the carrier and to punch an index positioning hole on one side of the part receiving slot; the punching mechanism is composed of a punching actuator and a punching motion drive mechanism, and is used to punch the middle part of the bottom of the formed part receiving slot; the heating motion drive mechanism, the forming motion drive mechanism and the punching motion drive mechanism are driven by the same motion drive mechanism. The power source drive is an integral forming drive mechanism, comprising a main motor, an upper spindle and a lower spindle; the main motor is mounted on the back of the forming frame, and the upper and lower spindles are mounted on the upper and lower positions of the forming frame in the front-to-back direction; the main motor is connected to a driving wheel via a reducer, and the driving wheel is synchronously connected to a first driven wheel on the upper spindle and a second driven wheel on the lower spindle via a transmission belt; an upper cam for heating, an upper cam for forming and an upper cam for punching are fixedly mounted on the upper spindle in sequence, and a lower cam for heating and a lower cam for forming are fixedly mounted on the lower spindle in sequence;

[0010] The belt pulling mechanism is used to transfer one workstation of the carrier belt to another workstation, thereby realizing intermittent in-line production of the carrier belt.

[0011] Furthermore, the heating actuator comprises an upper heating die set, a lower heating die set, an upper heating cam contact roller, and a lower heating cam contact roller; the upper end of the upper heating die set is pressed into contact with the cam surface of the upper heating cam via the upper heating cam contact roller, and the lower end of the lower heating die set is pressed into contact with the cam surface of the lower heating cam via the lower heating cam contact roller; a pair of aligned heating bumps are provided on the lower portion of the upper heating die set and the upper portion of the lower heating die set, and the heating positions of the heating bumps on the carrier tape correspond to the set positions of the part receiving slots;

[0012] The groove forming mechanism includes an upper forming die set, a lower forming die set, an upper forming cam contact roller, and a lower forming cam contact roller; the upper forming die set is pressed and contacted with the cam surface of the upper forming cam by the upper forming cam contact roller at the upper part, and the lower forming die set is pressed and contacted with the cam surface of the lower forming cam by the lower forming cam contact roller at the lower part; the lower part of the upper forming die set is provided with multiple rows of punching needles II and multiple rows of forming upper convex teeth, and the upper part of the lower forming die set is provided with punching holes II and forming lower concave teeth in a one-to-one correspondence;

[0013] The punching mechanism includes a punching upper die group, a punching lower die group, and an upper cam contact roller for punching; the upper punching die group is pressed into contact with the cam surface of the upper cam for punching through the upper cam contact roller for punching; a plurality of rows of punching needles III are provided at the lower part of the punching upper die group, and a plurality of rows of punching holes III are provided in a one-to-one correspondence at the upper part of the punching lower die group.

[0014] Moreover, the discharging mechanism includes a discharging motor and a discharging tray assembly; the discharging motor is fixed on the upper end of the discharging bracket, the output end of the discharging motor is connected to the discharging tray assembly, and the discharging motor drives the discharging tray assembly to rotate to realize the carrier discharging; a hand-pressed punching mechanism is also installed at the lower part of the discharging bracket, and the hand-pressed punching mechanism includes a discharging base, a carrier positioning plate, a punching needle guide plate, a punching needle limiting plate, a pressure roller, a pressure rod and a pressure rod mounting seat; a removable particle collecting box is embedded in the discharging base, and the carrier positioning plate is fixed to the upper end of the discharging base; two upward-extending guide rods are vertically fixed on both sides of the carrier positioning plate, and a carrier positioning shallow groove and a punching hole Ⅰ are provided in the middle of the carrier positioning plate; the punching needle guide plate is arranged above the carrier positioning plate, and the punching needle guide plate is connected to the carrier positioning plate through two guide rods on both sides. The punching holes are matched with the two guide rods for upward and downward guidance, and the middle part of the punching needle guide plate is densely provided with punching needle guide holes; the punching needle limiting plate is arranged above the punching needle guide plate, and the punching needle limiting plate forms an upward and downward guiding cooperation with the two guide rods through the two guide holes on both sides thereof, and a densely distributed punching needle I is vertically fixed in the middle of the lower end of the punching needle limiting plate, and the punching needle I, the punching needle guide holes and the punching hole I correspond one to each other up and down; a compression spring I is provided between the lower end of the punching needle limiting plate and the upper end of the punching needle guide plate near both sides; the pressure roller is installed at the upper end of the punching needle limiting plate, and the pressure rod mounting seat is vertically installed on one side of the upper end of the carrier positioning plate, and the lower end of the pressure rod is connected to the upper part of the pressure rod mounting seat through a support shaft. When the pressure rod is pressed down, it contacts the pressure roller, so that the punching needle limiting plate drives the punching needle I downward to complete punching on the carrier.

[0015] Moreover, the heating actuator also includes a heating upper limit cylinder and a heating lower limit cylinder; the heating upper mold group and the heating lower mold group are respectively connected to the vertical heating guide rail in a slidable manner through sliders fixed to the back of their respective back plates; the vertical heating guide rail is fixed on the back of the forming machine frame; the heating upper cam contact roller and the heating lower cam contact roller are respectively installed on the upper end of the back plate of the heating upper mold group and the lower end of the back plate of the heating lower mold group through roller frames; the heating upper limit cylinder and the heating lower limit cylinder are fixed on the forming machine frame, and the heating upper limit cylinder The upper cylinder rod end of the cylinder is fixedly connected to the upper end of the back plate of the heating upper mold group, and the lower cylinder rod end of the heating lower limit cylinder is fixedly connected to the lower end of the back plate of the heating lower mold group; the upper heating cam contact roller always keeps in contact with the cam surface of the upper heating cam under the action of the heating upper limit cylinder; the lower heating cam contact roller always keeps in contact with the cam surface of the lower heating cam under the action of the heating lower limit cylinder; temperature sensors are provided inside the upper heating mold group and the lower heating mold group, and heating rods are installed on both sides of the temperature sensors.

[0016] Moreover, the forming upper die assembly includes a forming upper die fixing plate, a forming positioning plate, and a forming unloading plate; the forming upper die fixing plate, the forming positioning plate, and the forming unloading plate are arranged in sequence from top to bottom; the forming upper die fixing plate is fixedly connected to the forming positioning plate; the forming positioning plate and the forming unloading plate are loosely connected by screws, and a gap is left between the lower end of the forming positioning plate and the upper end of the forming unloading plate; a plurality of spring through holes are provided on the forming positioning plate, and a compression spring II is installed in each spring through hole, and the upper end of the compression spring II is in press-contact with the lower end of the forming upper die fixing plate, and the lower end of the compression spring II is in press-contact with the lower end of the forming upper die fixing plate. It is in tight contact with the upper end of the forming stripper plate; multiple rows of punch needles II and multiple rows of forming upper convex teeth are installed in sequence in the middle of the forming positioning plate; electric heating tubes are inserted in the forming positioning plate on both sides of the multiple rows of punch needles II and multiple rows of forming upper convex teeth; punch needle through holes and tooth through holes are provided on the forming stripper plate; upper die guide columns are vertically fixed near the four corners of the forming positioning plate, and the upper die guide columns form a guide fit with the guide holes provided near the four corners of the forming stripper plate; four limit guide columns are vertically fixed at the lower end of the forming stripper plate;

[0017] The upper forming mold group is connected to the upper cam contact roller for forming through the upper forming mold hoisting assembly; the upper forming mold hoisting assembly is composed of a forming hanger and a forming hanger seat arranged upper and lower; the forming hanger is fixedly connected to the upper forming mold fixing plate, and an inverted T-shaped hanging groove is provided at the upper end of the forming hanger; a hanging joint is provided at the lower end of the forming hanger, and the shape of the hanging joint matches the shape of the inverted T-shaped hanging groove, and the hanging joint is inserted into the inverted T-shaped hanging groove to realize the upper and lower fixed connection between the forming hanger and the forming hanger; a forming guide rail connecting plate is fixed on the back of the forming hanger, and a forming guide block is installed on the back of the forming guide rail connecting plate, and the forming guide block cooperates with the forming guide rail fixed on the forming machine frame, and the forming guide rail and the forming guide block constitute a linear guide pair; the upper cam contact roller for forming is installed at the upper end of the forming hanger, and a tension spring I is connected between the forming guide rail connecting plate and the forming frame along the up and down directions, so that the upper cam contact roller for forming is always kept in contact with the lower part of the upper cam for forming.

[0018] Moreover, the forming lower die group includes a forming lower die pushing plate, a groove forming mechanism support plate, a forming lower die fixing plate, a forming lower die base, and a forming lower die; the forming lower die is embedded and fixed in the middle position of the upper end of the forming lower die base, and multiple rows of punching holes II and multiple rows of forming lower concave teeth are sequentially arranged on the forming lower die, and the multiple rows of punching holes II correspond to the multiple rows of punching needles II of the forming upper die group, and the multiple rows of forming lower concave teeth correspond to the multiple rows of forming upper convex teeth; the forming lower die base, the forming lower die fixing plate, the groove forming mechanism support plate and the forming lower die pushing plate are sequentially arranged up and down; corresponding guide holes are provided on the forming lower die base corresponding to the positions of the upper die guide columns, and corresponding clearance holes are provided corresponding to the limiting guide columns at the lower end of the forming unloading plate; the forming lower die base and the front end of the forming lower die fixing plate are connected by screws The cam is fixed with a nail, and a limit cylinder is installed at the rear end of the forming lower die fixed plate, and a limit block is installed at the cylinder rod end of the limit cylinder, and the lower end of the limit block is in close contact with the base of the forming lower die; the groove forming mechanism support plate is a fixed plate, which is fixedly installed on the forming machine frame, and four guide holes are provided on the groove forming mechanism support plate near the four corners, and guide sleeves are provided in the guide holes, and a lower die guide column is installed in each of the four guide sleeves, and the upper end of the lower die guide column is vertically fixedly connected to the forming lower die fixed plate, and the lower end of the lower die guide column is vertically fixedly connected to the forming lower die push plate; the heating lower cam contact roller is installed at the lower end of the forming lower die push plate, and a tension spring II is connected between the forming lower die push plate and the frame workbench, so that the forming lower cam contact roller always keeps in contact with the upper part of the forming lower cam.

[0019] Moreover, the punching needle II is a hollow punching needle; an air groove is provided at the lower end of the forming upper mold fixing plate corresponding to the position of the multiple rows of punching needles II, and an air intake passage connected to the air groove is built-in on one side of the forming upper mold fixing plate, and the outer port of the air intake passage is connected to the external air supply device through an air pipe; particle blanking slot holes are provided on the forming lower mold base corresponding to the position of the multiple rows of punching holes II, and a particle collecting slot is provided at the upper end of the forming lower mold fixing plate corresponding to the position of the particle blanking slot holes, an air pipe joint is provided at one end of the particle collecting slot, an air pipe is connected to the air pipe joint, and the other end of the air pipe is connected to a sealing box provided under the frame workbench, and the sealing box is connected to a fan.

[0020] Moreover, the punching lower die group includes a punching base and a punching lower die; the punching base is fixed on the forming machine frame, and a waste collection trough is provided on the punching base, and an air pipe joint is provided at the waste collection trough, and an air pipe is connected to the air pipe joint, and the other end of the air pipe is connected to a sealing box provided under the frame workbench, and the sealing box is connected to a fan; the punching lower die is fixed to the upper end of the punching base, and multiple rows of punching holes III are provided in the middle of the upper part of the punching lower die, and the multiple rows of punching holes III are communicated with the waste collection trough located below; guide holes are provided near both ends of the punching lower die, and guide sleeves are installed inside.

[0021] The tool holder is provided with a plurality of guide holes, and the guide holes are provided with a plurality of holes at the bottom of the punching die, and the guide holes are provided with a plurality of holes at the bottom of the punching die.

[0022] The punching upper die group is connected to the punching upper cam contact roller through the punching upper die hoisting assembly. The punching upper die hoisting assembly is composed of a punching hanger and a punching hanger seat arranged up and down; the punching hanger is fixedly connected to the punching upper die fixing plate, and an inverted T-shaped hanging groove is provided at the upper end of the punching hanger, and a hanging joint is provided at the lower end of the punching hanger. The shape of the hanging joint matches the shape of the inverted T-shaped hanging groove, and the hanging joint is embedded in the inverted T-shaped hanging groove to realize the upper and lower fixation of the punching hanger and the punching hanger. Connection; a punching guide rail connecting plate is fixed on the back of the punching hanger, and a punching guide block is installed on the back of the punching guide rail connecting plate. The punching guide block cooperates with the punching guide rail fixed on the forming machine frame, and the punching guide rail and the punching guide block constitute a linear guide pair; the upper cam contact roller for punching is installed at the upper end of the punching hanger, and a tension spring III is connected between the punching guide rail connecting plate and the forming machine frame in the up and down directions, so that the upper cam contact roller for punching is always in contact with the lower part of the upper cam for punching.

[0023] Moreover, the ultra-precision flat-plate carrier forming machine also includes a slitting mechanism, a waste mechanism and a receiving mechanism; the slitting mechanism is connected to the pulling mechanism, the receiving mechanism is connected to the slitting mechanism, and the waste mechanism is arranged below the tape output end of the slitting mechanism; the slitting mechanism is used to slit the carrier tape after forming and punching into multiple strips; the waste mechanism is used to cut the slit waste; the receiving mechanism is used to automatically wind and receive the finished carrier tape after slitting.

[0024] The present invention has the following advantages and positive effects:

[0025] The heating mechanism, groove forming mechanism, and punching mechanism of the present invention are driven by a synchronous transmission mechanism of upper and lower spindles driven by a single servo. An upper cam for heating, an upper cam for forming, and an upper cam for punching are fixed to the upper spindle, while a lower cam for heating and a lower cam for forming are fixed to the lower spindle in sequence. Through the cooperation of the cams and cam contact rollers at corresponding positions, the upper and lower heating dies can achieve localized heating of the forming areas of the carrier tape at three consecutive positions on the front, middle, and rear of the carrier tape during the carrier tape's rest period. The upper and lower forming dies punch the part receiving grooves at the preceding heating points on the carrier tape and punch indexing holes on one side of the part receiving grooves. The upper and lower punching dies punch the small holes at the bottom of the part receiving grooves. Compared to existing independently controlled pneumatic drive methods, this drive method offers high motion precision, significantly improving the quality of forming and punching, making it particularly suitable for high-speed production and significantly increasing production efficiency.

[0026] 2. The present invention uses a motor to link the heating mechanism, the forming mechanism, and the punching mechanism, thereby ensuring precise coordination between the various mechanisms during operation. The heating mechanism uses a point-contact method to heat the forming portion of the part receiving slot to be formed on the carrier. By comparing it with the carrier after overall heating, it can be seen that point-contact heating better avoids bending and deformation of the carrier due to heating, thereby ensuring the straightness of the carrier forming. The straightness of the carrier is an important parameter of the carrier quality. Good straightness can ensure the accurate positioning of the electronic device in the part receiving slot and the complete coating of the upper surface of the part receiving slot. The accurate positioning of the electronic device in the part receiving slot can ensure that it can be accurately grasped by the robot arm during subsequent production.

[0027] 3. Existing carrier tape forming machines punch the indexing holes after forming the part-receiving slots. This conventional processing method cannot accurately guarantee the dimensions between the indexing holes and the part-receiving slots, and can only be controlled within the required range. However, the present invention integrates the forming of the part-receiving slots and the punching of the indexing holes into a single mechanism, enabling simultaneous processing of the part-receiving slots and the indexing holes. This allows for strict control of the dimensional accuracy between the indexing holes and the part-receiving slots through mold processing.

[0028] 4. The present invention incorporates a separate punching mechanism after the slot-forming mechanism to punch a small hole in the center of the bottom of the component-receiving slot. This is intended to accommodate the processing of ultra-small component-receiving slots. When punching ultra-small component-receiving slots, the close spacing between the component-receiving slots makes it difficult to arrange the punching needles within a single mechanism. The present invention separates the punching into the slot-forming mechanism and the punching mechanism, allowing simultaneous processing. This effectively satisfies the requirements for processing ultra-small component-receiving slots on carrier tapes.

[0029] 5. The present invention is well applicable to the forming of part receiving grooves of various sizes and structural forms, especially the forming of small-sized part receiving grooves, and can avoid the groove bottom of the part receiving groove being too thin, thereby ensuring the structural strength of the part receiving groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a structural schematic diagram of the discharge mechanism of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the hand-pressed punching mechanism of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the integrally formed drive mechanism of the present invention;

[0034] Figure 5 It is a schematic diagram of the three-dimensional structure of the heating actuator of the present invention;

[0035] Figure 6 is a side view of the groove forming actuator of the present invention;

[0036] Figure 7 is a three-dimensional diagram of the groove forming actuator of the present invention;

[0037] Figure 8 This is an exploded view of the upper forming die assembly of the present invention;

[0038] Figure 9 This is an exploded view of the lower molding die assembly of the present invention (structural diagram of some key components);

[0039] Figure 10 This is a schematic diagram of the installation of the limiting cylinder and the limiting block of the lower molding die set of the present invention;

[0040] Figure 11 It is a front view of the punching actuator of the present invention;

[0041] Figure 12 It is a three-dimensional diagram of the punching actuator of the present invention;

[0042] Figure 13 It is an exploded view of the punching actuator of the present invention;

[0043] Figure 14 It is a structural schematic diagram of the drawstring mechanism of the present invention;

[0044] Figure 15 It is a structural schematic diagram of the slitting mechanism of the present invention;

[0045] Figure 16 It is a structural schematic diagram of the waste mechanism of the present invention;

[0046] Figure 17 It is a schematic diagram of the overall structure of the material receiving mechanism of the present invention;

[0047] Figure 18 This is a schematic diagram of the three-dimensional structure of a set of material receiving units of the present invention;

[0048] Figure 19 This is a comparison diagram of the front side of a carrier tape processed by the molding machine of the present invention and the front side of a carrier tape processed by a conventional carrier tape molding machine;

[0049] Figure 20 This is a comparison diagram of the back side of a carrier tape processed by the molding machine of the present invention and the back side of a carrier tape processed by a conventional carrier tape molding machine;

[0050] 1. Unloading mechanism; 1.1. Unloading motor; 1.2. Unloading tray assembly; 1.3. Unloading bracket; 1.4. Hand-pressed punching mechanism; 1.4.1. Pressure rod; 1.4.2. Pressure roller; 1.4.3. Punch needle limit plate; 1.4.4. Guide rod; 1.4.5. Compression spring I; 1.4.6. Punch needle guide plate; 1.4.7. Carrier positioning plate; 1.4.8. Unloading base; 1.4.9. Particle collection box; 1.4.10. Pressure rod mounting seat; 1.4.11. Punch needle I; 2. Heating actuator; 2.1. Upper cam contact roller for heating; 2.2. Back plate of upper heating die set; 2.3. Upper heating die set; 2.4. Heating bump; 2.5. Temperature sensor; 2.6. Heating rod; 2.7. Heating 2.8. Heating lower die set; 2.9. Heating lower cam contact roller; 2.10. Heating upper limit cylinder; 2.11. Vertical heating guide rail; 2.12. Heating lower limit cylinder; 3. Groove forming actuator; 3.1. Tension spring I; 3.2. Forming upper cam contact roller; 3.3. Forming upper die hoisting assembly; 3.3.1. Forming hanger; 3.3.2. Forming hanger; 3.4. Forming upper die set; 3.4.1. Forming upper die fixing plate; 3.4.2. Forming positioning plate; 3.4.3. Forming unloading plate; 3.4.4. Compression spring II; 3.4.5. Forming upper convex teeth; 3.4.6. Punch needle II; 3.4.7. Electric heating tube; 3.4.8. Upper die guide column; 3.4.9. Limit guide Column; 3.4.10, air groove; 3.5, forming lower die assembly; 3.5.1, forming lower die base; 3.5.2, forming lower die; 3.5.3, forming lower die fixing plate; 3.5.4, groove forming mechanism support plate; 3.5.5, forming lower die push plate; 3.5.6, forming lower concave teeth; 3.5.7, punching II; 3.5.8, guide sleeve; 3.5.9, lower die guide column; 3.5.10, particle blanking slot; 3.5.11, particle collecting slot; 3.5.12, air pipe joint; 3.5.13, limit cylinder; 3.5.14, limit block; 3.6, forming lower cam contact roller; 3.7, tension spring II; 4, punching actuator; 4.1, tension spring III; 4.2, punching upper die hoisting assembly; 4 .2.1, Punching hanger; 4.2.2, Punching hanger; 4.3, Punching upper die assembly; 4.3.1, Punching upper die fixing plate; 4.3.2, Punching needle positioning plate; 4.3.3, Punching unloading plate; 4.3.4, Guide shaft; 4.3.5, Compression spring III; 4.4, Punching lower die assembly; 4.4.1, Punching lower die; 4.4.2, Punching base; 4.4.3, Waste collection trough; 5, Belt drawing mechanism; 5.1, Belt drawing motor; 5.2, Belt drawing needle wheel; 5.3, Belt pressure roller; 5.4, Sensor; 6, Slitting mechanism; 6.1, Cutter guide track; 6.2, Upper cutter; 6.3, Lower cutter; 6.4, Belt drawing active roller after slitting; 6.5, Belt drawing driven roller after slitting; 6.6, Scrap active guide roller; 6.7. Scrap driven guide roller; 7. Scrap mechanism; 7.1. Scrap mechanism base; 7.2. Cutter guide plate; 7.3. Scrap guide plate; 7.3.1. Feed inlet; 7.4. Scrap cutter; 7.5. Cutting cylinder; 8. Rewinding mechanism; 8.1. Rewinding rack; 8.2. Rewinding unit; 8.2.1. Rewinding rack; 8.2.2. Rewinding motor; 8.2.3. Wire arrangement device; 8.2.4. Rewinding Plate; 8.2.5, Potentiometer; 8.2.6, Protective cover; 8.3, Cleaning fan; 8.4, Cleaning box; 8.5, Cleaning mechanism; 9, Integral forming drive mechanism; 9.1, Main motor; 9.2, Upper spindle; 9.3, Lower spindle; 9.4, Upper cam for heating; 9.5, Upper cam for forming; 9.6, Upper cam for punching; 9.7, Lower cam for heating; 9.8, Lower cam for forming. DETAILED DESCRIPTION

[0051] The structure of the present invention will be further described below with reference to the accompanying drawings and through examples. It should be noted that the present examples are descriptive rather than restrictive.

[0052] An ultra-precision flat-bed carrier tape forming machine, see Figures 1-20 The invention mainly comprises a feeding mechanism 1, a heating mechanism, a groove forming mechanism, a punching mechanism, a belt drawing mechanism 5, a slitting mechanism 6, a waste mechanism 7 and a receiving mechanism 8. The feeding mechanism, the heating mechanism, the groove forming mechanism, the punching mechanism, the belt drawing mechanism, the slitting mechanism and the receiving mechanism are sequentially connected.

[0053] The discharge mechanism is used to release the disc-shaped carrier raw material. The heating mechanism is used to heat and soften the part receiving slot position set on the carrier before forming to ensure subsequent forming. The slot forming mechanism is used to form the part receiving slot at the heated and softened part of the carrier and to punch index positioning holes on one side of the part receiving slot. The index positioning holes are used as pulling holes during the carrier forming process and as index positioning holes after the carrier is formed. The punching mechanism is used as the next step execution structure after forming to punch the middle part of the formed part receiving slot. The pulling mechanism is used to transfer one workstation of the carrier to another workstation to realize intermittent online production of the carrier. The slitting mechanism is used to slit the carrier into multiple strips after forming and punching. The waste mechanism is used to cut the waste cut out to ensure stable production. The receiving mechanism is used to automatically wind and receive the finished carrier after slitting.

[0054] The unloading mechanism mainly includes a unloading motor 1.1 and a unloading tray assembly 1.2. The unloading motor is fixed to the upper end of the unloading bracket 1.3, and the output end of the unloading motor is connected to the unloading tray assembly. The unloading motor drives the unloading tray assembly to rotate to realize the unloading of the carrier tape. The unloading bracket is also equipped with a hand-pressed punching mechanism 1.4. The function of the hand-pressed punching mechanism is to perform hand-pressed punching at the initial position of a reel of carrier tape raw material. The punching is used to cooperate with the pulling needle on the pulling needle wheel of the pulling mechanism to realize the pulling drive of a reel of carrier tape in the initial processing stage. The hand-pressed punching mechanism is installed at the lower part of the unloading bracket, and includes a unloading base 1.4.8, a carrier tape positioning plate 1.4.7, a punching needle guide plate 1.4.6, a punching needle limit plate 1.4.3, a pressure roller 1.4.2, a pressure rod 1.4.1 and a pressure rod mounting seat 1.4.10. The discharge base is embedded with a removable particle collection box 1.4.9, and the carrier positioning plate is fixed to the upper end of the discharge base. Two upwardly extending guide rods 1.4.4 are vertically fixed on both sides of the carrier positioning plate, and a carrier positioning shallow groove and punching hole I are provided in the middle of the carrier positioning plate. The punch needle guide plate is arranged above the carrier positioning plate, and the punch needle guide plate cooperates with the two guide rods for up and down guidance through the two guide holes on both sides, and the middle of the punch needle guide plate is densely provided with punch needle guide holes. The punch needle limiting plate is arranged above the punch needle guide plate, and the punch needle limiting plate cooperates with the two guide rods for up and down guidance through the two guide holes on both sides thereof, and densely distributed punch needles Ⅰ 1.4.11 are vertically fixed in the middle of the lower end of the punch needle limiting plate, and the punch needles Ⅰ 1.4.11, the punch needle guide holes and the punching holes Ⅰ correspond one to one up and down. Compression springs I1.4.5 are provided near both sides between the lower end of the punch needle limit plate and the upper end of the punch needle guide plate, so that during the carrier tape forming process, the carrier tape is limited to the carrier tape positioning shallow groove through the punching guide plate. At the same time, when punching on the carrier tape is not required, the punch needle limit plate drives the punch needle I to lift up through compression spring I. A pressure roller is installed at the upper end of the punch needle limit plate, and a pressure rod mounting seat is vertically installed on one side of the upper end of the carrier tape positioning plate. The lower end of the pressure rod is connected to the upper part of the pressure rod mounting seat through a support shaft. When the pressure rod is pressed down, it contacts the pressure roller, so that the punch needle limit plate drives the punch needle I downward, completing the punching on the carrier tape.

[0055] The heating mechanism consists of a heating actuator 2 and a heating motion drive mechanism, the slot forming mechanism consists of a slot forming actuator 3 and a forming motion drive mechanism, and the punching mechanism consists of a punching actuator 4 and a punching motion drive mechanism. The heating motion drive mechanism, the forming motion drive mechanism, and the punching motion drive mechanism are driven by the same power source, forming an integrated forming drive mechanism 9, comprising a main motor 9.1, an upper spindle 9.2, and a lower spindle 9.3. The main motor is a servo motor. The main motor is connected to a driving pulley via a reducer. The driving pulley is synchronously connected to the first driven pulley on the upper spindle and the second driven pulley on the lower spindle via a transmission belt. An upper heating cam 9.4, an upper forming cam 9.5, and an upper punching cam 9.6 are fixedly mounted on the upper spindle in sequence. A lower heating cam 9.7 and a lower forming cam 9.8 are fixedly mounted on the lower spindle in sequence. The upper main shaft and the lower main shaft are installed at the upper position and the lower position of the forming frame along the front-back direction, and the main motor is installed at the back position of the forming frame.

[0056] The heating actuator 2 includes a heating upper module 2.3, a heating lower module 2.7, a heating upper limit cylinder 2.10, a heating lower limit cylinder 2.12, an upper heating cam contact roller 2.1, and a lower heating cam contact roller 2.9. The heating upper module and the heating lower module are arranged in a vertically opposed relationship and are slidably connected to the vertical heating guide rail 2.11 via sliders fixed to the back of their respective back plates. The vertical heating guide rail is fixed to the back of the forming machine frame. The heating upper cam contact roller and the heating lower cam contact roller are respectively mounted on the upper end of the back plate 2.2 of the heating upper module and the lower end of the back plate 2.8 of the heating lower module via roller frames. The heating upper limit cylinder and the heating lower limit cylinder are fixed to the forming machine frame, and the upper cylinder rod end of the heating upper limit cylinder is fixedly connected to the upper end of the back plate of the heating upper module, while the lower cylinder rod end of the heating lower limit cylinder is fixedly connected to the lower end of the back plate of the heating lower module. The upper heating cam contact roller always keeps contact with the cam surface of the upper heating cam under the action of the upper heating limit cylinder, and the lower heating cam contact roller always keeps contact with the cam surface of the lower heating cam under the action of the lower heating limit cylinder.

[0057] The upper heating module and the lower heating module are provided with temperature sensors 2.5, and heating rods 2.6 are installed on both sides of the temperature sensors. A pair of aligned heating bumps 2.4 are provided at the lower end of the upper heating module and the lower end of the lower heating module. The heating positions of the heating bumps on the carrier tape correspond to the positions of the parts receiving slots to be subsequently formed. During the carrier tape forming process, in the stationary stage of the carrier tape, the upper heating cam drives the upper heating module downward, while the lower heating cam drives the lower heating module upward. The heating bumps of the upper heating module and the heating bumps of the lower heating module come into contact, thereby heating the local points of the carrier tape. After heating, as the upper heating cam and the lower heating cam rotate, the upper heating module and the lower heating module are quickly separated, thereby avoiding bending and deformation of the carrier tape caused by heating and ensuring the flatness of the carrier tape.

[0058] The slot forming actuator 3 is used to stamp and form index holes in the heated carrier tape, and mainly includes an upper forming die set 3.4, a lower forming die set 3.5, an upper forming die hoisting assembly 3.3, an upper forming cam contact roller 3.2, and a lower forming cam contact roller 3.6. During forming, the upper forming die set descends under the action of the upper forming cam. Multiple rows of upper forming convex teeth are provided at the lower end of the upper forming die set, and a row of punching needles II are provided on one side of each row of upper forming convex teeth. Simultaneously, the lower forming die set ascends under the action of the lower forming cam. Multiple groups of lower forming concave teeth are provided at the upper end of the upper forming die set, and a row of punching holes II are provided on one side of each group of lower forming concave teeth. The multiple groups of upper forming convex teeth correspond one-to-one with the multiple groups of lower forming concave teeth, and the multiple rows of punching needles II correspond one-to-one with the multiple rows of punching holes II, and the multiple rows of indexing positioning holes are formed by the multiple rows of punching needles II.

[0059] The forming upper die assembly includes a forming upper die fixing plate 3.4.1, a forming positioning plate 3.4.2, and a forming unloading plate 3.4.3. The forming upper die fixing plate, the forming positioning plate, and the forming unloading plate are arranged in sequence up and down. The forming upper die fixing plate is fixedly connected to the forming positioning plate by screws. The forming positioning plate and the forming unloading plate are loosely connected by screws, and a gap is left between the lower end of the forming positioning plate and the upper end of the forming unloading plate. There are multiple spring through holes on the forming positioning plate, and a compression spring II 3.4.4 is installed in each spring through hole. The upper end of the compression spring II is in pressing contact with the lower end of the forming upper die fixing plate, and the lower end of the compression spring II is in pressing contact with the upper end of the forming unloading plate. In the middle of the forming positioning plate, multiple rows of punching needles II 3.4.6 and multiple rows of forming upper convex teeth 3.4.5 extending downward are installed in sequence at intervals. Electric heating tubes 3.4.7 are installed on both sides of the forming positioning plate, where the rows of punch pins II and the rows of upper forming teeth are mounted, to insulate the upper forming die assembly. Punch pin and tooth holes are provided on the forming stripper plate. Upper die guide posts 3.4.8 are vertically fixed near the four corners of the forming positioning plate. These upper die guide posts mate with guide holes located near the four corners of the forming stripper plate to form insertion guides. Four limit guide posts 3.4.9 are vertically fixed at the lower end of the forming stripper plate.

[0060] The molding upper die hoisting assembly is used to realize the hoisting of the molding upper die group, and is mainly composed of a molding hanger 3.3.1 and a molding hanger seat 3.3.2 arranged upper and lower. The molding hanger seat is fixedly connected to the molding upper die fixing plate by screws, and an inverted T-shaped hanging groove is provided at the upper end of the molding hanger seat. A hanging joint is provided at the lower end of the molding hanger, and the shape of the hanging joint matches the shape of the inverted T-shaped hanging groove. The hanging joint is inserted into the inverted T-shaped hanging groove to realize the upper and lower fixed connection between the molding hanger and the molding hanger seat. A molding guide rail connecting plate is fixed to the back of the molding hanger, and a molding guide block is installed on the back of the molding guide rail connecting plate. The molding guide block cooperates with the molding guide rail fixed on the molding frame, and the molding guide rail and the molding guide block constitute a linear guide pair.

[0061] The upper cam contact roller for forming is installed on the upper end of the forming hanger, and a tension spring I3.1 is connected between the forming guide rail connecting plate and the forming machine frame along the up and down directions to ensure that the upper cam contact roller for forming is always in contact with the lower part of the upper cam for forming.

[0062] The lower forming die assembly includes a lower forming die push plate 3.5.5, a groove forming mechanism support plate 3.5.4, a lower forming die fixed plate 3.5.3, a lower forming die base 3.5.1, and a lower forming die 3.5.2. The lower forming die is embedded and fixed in the middle of the upper end of the lower forming die base. Multiple rows of punching holes II 3.5.7 and multiple rows of forming lower concave teeth 3.5.6 are sequentially arranged on the lower forming die. The multiple rows of punching holes II correspond one-to-one with the multiple rows of punching needles II of the upper forming die assembly, and the multiple rows of forming lower concave teeth correspond one-to-one with the multiple rows of forming upper convex teeth. The lower forming die base, the lower forming die fixed plate, the groove forming mechanism support plate, and the lower forming die push plate are sequentially arranged in the upper and lower parts. Corresponding guide holes are provided on the lower forming die base at positions corresponding to the upper die guide posts, and corresponding clearance holes are provided corresponding to the limit guide posts at the lower end of the forming unloading plate. The lower die base is fixedly connected to the front end of the lower die fixing plate via screws. A limit cylinder 3.5.13 is installed at the rear end of the lower die fixing plate. A limit block 3.5.14 is installed at the rod end of the limit cylinder. The lower end of the limit block is in close contact with the lower die base. The groove forming mechanism support plate is a fixed plate, which is fixedly mounted on the forming machine frame. Four guide holes are provided near the four corners of the groove forming mechanism support plate. Guide sleeves 3.5.8 are provided in the guide holes. A lower die guide column 3.5.9 is installed in each of the four guide sleeves. The upper end of the lower die guide column is vertically fixedly connected to the lower die fixing plate, and the lower end of the lower die guide column is vertically fixedly connected to the lower die push plate. The heating lower cam contact roller is installed at the lower end of the lower die push plate. A tension spring II 3.7 is connected between the lower die push plate and the frame workbench to ensure that the lower cam contact roller for forming always maintains contact with the upper part of the lower cam for forming.

[0063] In addition, in order to achieve the smooth discharge of waste after punching, the punch needle II further adopts a hollow punch needle. An air groove 3.4.10 is provided at the lower end of the forming upper mold fixing plate corresponding to the position of the multiple rows of punch needles II. An air intake passage connected to the air groove is built into one side of the forming upper mold fixing plate, and the outer port of the air intake passage is connected to the external air supply device through an air pipe. A particle blanking slot hole 3.5.10 is provided on the forming lower mold base corresponding to the position of the multiple rows of punching holes II, and a particle collection slot 3.5.11 is provided at the upper end of the forming lower mold fixing plate corresponding to the position of the particle blanking slot hole. An air pipe joint 3.5.12 is provided at one end of the particle collection slot, and an air pipe is connected to the air pipe joint. The other end of the air pipe is connected to a sealing box provided under the frame workbench, and the sealing box is connected to a fan.

[0064] During the downward movement of the upper die assembly, air is instantly ventilated into the air tank through the air supply device. The fan is turned on before the equipment is put into operation, and the sealed box is always in a negative pressure state. During the operation of the equipment, the waste material from the punching and shearing is sucked into the particle collection tank at the moment of forming. Under the action of negative pressure, the waste material in the particle collection tank enters the sealed box through the air pipe, realizing the waste collection.

[0065] Using the above-mentioned groove forming mechanism, as the upper forming cam and the lower forming cam rotate, the lower end of the forming upper die group and the upper end of the forming lower die group fit together to press the carrier tape, and at the same time, the limiting guide column on the forming unloading plate contacts the forming lower die fixed plate through the corresponding clearance hole on the forming lower die base, limiting the downward movement of the unloading plate; then the forming upper die fixed plate, the forming positioning plate, the punching needle II and the forming upper convex teeth continue to move downward, and the punching needle II and the forming upper convex teeth extend from the lower end of the unloading plate, and cooperate with the punching hole II and the forming lower concave teeth of the forming lower die group respectively to form a parts accommodating groove and an index positioning hole on the carrier tape.

[0066] The punching actuator is used to punch a through hole at the bottom of the formed part receiving groove. It mainly includes a punching lower die set 4.4, a punching upper die set 4.3, a punching upper die hoisting assembly 4.2, and an upper cam contact roller for punching. The punching lower die set and the punching upper die set are arranged opposite each other up and down. The punching lower die set is a fixed die set, which is fixedly connected to the side plate of the forming frame through a support plate located at the bottom. The punching upper die set is a movable die set, which is connected to the side plate of the forming frame through a vertically arranged linear guide pair. The specific structural form is:

[0067] The punching lower die base includes a punching base 4.4.2 and a punching lower die 4.4.1. The punching base is fixed on the forming frame. A waste collection trough 4.4.3 is provided on the punching base, and an air pipe joint is provided at the waste collection trough. An air pipe is connected to the air pipe joint. The other end of the air pipe is connected to a sealing box provided under the workbench of the frame. The sealing box is connected to a fan, and the tiny pieces that are punched down are collected into the sealing box through negative pressure. The punching lower die is fixed to the upper end of the punching base. Multiple rows of punching holes III are provided in the middle of the upper punching lower die, and the multiple rows of punching holes III are connected to the waste collection trough located below. Guide holes are provided near both ends of the punching lower die, and guide sleeves are further installed in the guide holes to realize the upper and lower guiding cooperation of the punching upper die group.

[0068] The punching upper die assembly comprises a punching upper die fixing plate 4.3.1, a punch needle positioning plate 4.3.2, and a punching discharge plate 4.3.3, which are arranged in sequence from top to bottom. Guide shafts 4.3.4 extending downward are fixedly mounted at both ends of the punching upper die fixing plate. The two guide shafts pass through the axial holes at both ends of the punch needle positioning plate and the axial holes at both ends of the punching discharge plate, and are aligned vertically with the two guide holes on the punching lower die, respectively. The punch needle positioning plate is fixedly connected to the punching upper die fixing plate by screws. Multiple rows of punch needles III extending downward are mounted on the punch needle positioning plate, and the multiple rows of punch needles III correspond one-to-one with the multiple rows of punch holes III on the punching lower die. The punch pin positioning plate and punch stripper plate are loosely connected by screws (i.e., a gap is left between the lower end of the punch pin positioning plate and the upper end of the punch stripper plate). Multiple spring clearance holes are provided on the punch pin positioning plate, each of which contains a compression spring III 4.3.5. The upper and lower ends of compression spring III are respectively in tight contact with the lower end of the punch upper die fixing plate and the upper end of the punch stripper plate. Multiple rows of punch pin passage holes are provided on the punch stripper plate at positions corresponding to the multiple rows of punch pins III.

[0069] The punching upper die adopts this structural form. During the downward movement of the punching upper die, the lower end of the punching discharge plate first contacts the upper surface of the carrier tape to clamp and fix the carrier tape. Then, as the punching upper die continues to descend, the compression spring III is compressed, and multiple rows of punch needles III extend downward through the punch needle holes on the punching discharge plate, cooperating with the corresponding punch holes III on the punching lower die to form punch holes at the bottom of the part accommodating groove.

[0070] The punching upper die hoisting assembly is used to realize the hoisting of the punching upper die group, and is mainly composed of a punching hanger 4.2.1 and a punching hanger seat 4.2.2 arranged upper and lower. The punching hanger seat is fixedly connected to the punching upper die fixing plate by screws, and an inverted T-shaped hanging groove is provided at the upper end of the punching hanger seat. A hanging joint is provided at the lower end of the punching hanger, and the shape of the hanging joint matches the shape of the inverted T-shaped hanging groove. The hanging joint is embedded in the inverted T-shaped hanging groove to realize the upper and lower fixed connection between the punching hanger and the punching hanger seat. A punching guide rail connecting plate is fixed to the back of the punching hanger, and a punching guide block is installed on the back of the punching guide rail connecting plate. The punching guide block cooperates with the punching guide rail fixed on the forming machine frame, and the punching guide rail and the punching guide block constitute a linear guide pair.

[0071] The upper cam contact roller for punching is installed at the upper end of the punching hanger, and a tension spring III4.1 is connected between the punching guide rail connecting plate and the forming machine frame in the up and down directions to ensure that the upper cam contact roller for punching always keeps in contact with the lower part of the upper cam for punching.

[0072] Furthermore, a position for a punching die is reserved at the rear end of the punching mechanism to produce more precise carrier tapes. For example, when the spacing between the parts accommodating slots is 1MM, the punch needle III cannot be arranged with one die because the spacing is too small. At this time, the punch needle III can be installed separately through two sets of punching dies, and the distance between the pulling motors can be adjusted to cooperate with the two sets of punching dies to complete the punching.

[0073] The strap-pulling mechanism includes a pull pinwheel 5.2 and a pull motor 5.1. The motor's output is connected to the pull pinwheel, and a pressure roller 5.3 is positioned above the pull pinwheel. Because the carrier tape is produced intermittently and continuously, the pull pins on the pull pinwheel cooperate with the index positioning holes punched into the carrier tape to pull the carrier tape backward in an intermittent motion. Four equally spaced metal pieces extend from the rear end of the pull pinwheel, and a sensor 5.4 is positioned below the pinwheel. As the pinwheel moves, the metal pieces pass by the sensor to count the number.

[0074] The slitting mechanism is used to slit the carrier tape into multiple strips after forming and punching, and mainly includes a cutter guide track 6.1, a cutter group, a cutter pull belt assembly, a waste guide wheel group, and a cutter motor. The cutter group is composed of an upper cutter 6.2 and a lower cutter 6.3. The cutter pull belt assembly is composed of a slitting pull belt driven roller 6.5 and a slitting pull belt active roller 6.4 arranged in an upper and lower position. The waste guide wheel group is composed of a waste active guide roller 6.6 and a waste driven guide roller 6.7 arranged in front and back. The waste guide wheel group is arranged below the cutter pull belt assembly. The cutter group and the cutter pull belt assembly are arranged in a front-to-back order, and the cutter guide track runs through the cutter group and the cutter pull belt assembly. The cutter motor is fixed on the back of the main board of the slitting mechanism, and a gear is provided at the output end of the cutter motor. The upper cutter, the lower cutter, the driven roller of the strip after slitting, the active roller of the strip after slitting, the active guide roller of the waste material, and the rear ends of the driven guide roller of the waste material are all provided with gears. Several gears are engaged with each other and are driven by the same power source, the cutter motor.

[0075] The waste mechanism is used to cut the waste material cut from production to avoid disrupting stable production. The waste mechanism is located below the waste guide wheel assembly of the slitting mechanism and primarily comprises a waste mechanism base 7.1, a cutting cylinder 7.5, a waste cutter 7.4, a cutter guide plate 7.2, and a waste guide plate 7.3. The front upper corner of the waste cutter serves as a cutting edge. The waste mechanism base is fixed to the frame platform, and the cutter guide plate is fixedly mounted on the upper end of the waste mechanism base. A cutter guide groove extending in the front-to-back direction is provided on the cutter guide plate. The waste cutter is inserted into the cutter guide groove from the rear end. The handle of the waste cutter is fixedly connected to the rod end of the cutting cylinder, which is fixed to the waste mechanism base and positioned behind the cutter guide plate. The waste guide plate is fixedly mounted on the upper end of the cutter guide plate. A feed port 7.3.1 is provided on the waste guide plate, corresponding to the front end of the cutter guide groove. This feed port is tapered, with a larger top and smaller bottom. The waste enters the cutter guide groove below through the feed port, and the waste cutter moves back and forth to cut the waste. In addition, a drop port is provided on the waste mechanism base corresponding to the feed port on the waste guide plate, and the waste falls through the drop port into the waste collection chamber inside the waste mechanism base.

[0076] The receiving mechanism is used to automatically receive the finished products after slitting. The receiving mechanism is located at the last station of the equipment and mainly includes a receiving rack 8.1, a receiving unit 8.2, a cleaning fan 8.3, a cleaning box 8.4, and a cleaning mechanism 8.5. The receiving units are multiple groups. The receiving unit 8.2 is located at the front side of the receiving rack 8.1, the cleaning fan 8.3 and the cleaning box 8.4 are located at the rear end of the receiving rack 8.1, and the cleaning mechanism 8.5 is located at the front end of the receiving unit 8.2. The cleaning mechanism 8.5 is connected to the cleaning box 8.4 via an air pipe; one end of the cleaning box 8.4 is connected to the cleaning fan 8.3 via an air pipe; the cleaning mechanism is used to clean the fine hair debris of the carrier tape after slitting, and the cleaned hair debris is sucked into the cleaning box by the cleaning fan. The receiving unit 8.2 comprises a receiving frame 8.2.1, a receiving motor 8.2.2, a wire guide 8.2.3, a receiving tray 8.2.4, a potentiometer 8.2.5, and a protective cover 8.2.6. The receiving motor, wire guide, receiving tray, potentiometer, and protective cover are all mounted on the receiving frame. Synchronous pulleys are mounted on the same ends of the receiving motor 8.2.2, wire guide 8.2.3, and receiving tray 8.2.4, and are driven by a synchronous belt. The potentiometer 8.2.5 controls the receiving speed, while the wire guide controls the forward and backward direction of the receiving material.

[0077] Figure 19 and Figure 20 This is a comparison diagram of carrier tapes processed by the carrier tape forming machine of the present invention and the existing carrier tape forming machine. Figure 19It can be seen that the front of the carrier tape processed by the carrier tape forming machine of the present invention is straight, and there is no dent on the periphery of the parts receiving groove area, while the front of the carrier tape processed by the existing carrier tape forming machine has obvious groove lines on the periphery of the parts receiving groove area, and its surface flatness is poor. Figure 20 It can be seen that the reverse side of the carrier tape processed by the carrier tape forming machine of the present invention has no deformation marks, especially in the area outside the part accommodating groove, and the part accommodating groove has good uniformity and consistency. However, the reverse side of the carrier tape processed by the existing carrier tape forming machine has heat deformation marks in the area outside the part accommodating groove, and the part accommodating groove has poor uniformity and consistency. Through comparison with actual processed products, it can be concluded that the carrier tape forming machine of the present invention is superior to the existing carrier tape forming machine in many aspects such as the flatness of carrier tape forming and the forming quality of the part accommodating groove.

[0078] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will understand that various replacements, changes and modifications are possible without departing from the spirit of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. An ultra-precision flat-plate carrier forming machine, characterized by: It includes a feeding mechanism, a heating mechanism, a groove forming mechanism, a punching mechanism, and a drawing mechanism; the feeding mechanism, the heating mechanism, the groove forming mechanism, the punching mechanism, and the drawing mechanism are connected in sequence; The unloading mechanism is used to unroll the disc-shaped carrier raw material; The heating mechanism is composed of a heating actuator and a heating motion drive mechanism, which is used to heat and soften the part receiving slot position set on the carrier before forming; the slot forming mechanism is composed of a slot forming actuator and a forming motion drive mechanism, which is used to form the part receiving slot at the heated and softened part of the carrier and to punch an index positioning hole on one side of the part receiving slot. The index positioning hole is used as a pulling hole during the carrier forming process and as an index positioning hole after the carrier is formed; the punching mechanism is composed of a punching actuator and a punching motion drive mechanism, which is used to punch the middle part of the bottom of the formed part receiving slot; the heating motion drive mechanism and the forming motion drive mechanism are used to form the part receiving slot at the heated and softened part of the carrier and to punch an index positioning hole on one side of the part receiving slot. The driving mechanism and the punching motion driving mechanism are driven by the same power source and are an integral forming driving mechanism, comprising a main motor, an upper spindle and a lower spindle; the main motor is mounted on the back of the forming frame, and the upper spindle and the lower spindle are mounted on the upper and lower positions of the forming frame in the front-to-back direction; the main motor is connected to a driving wheel via a reducer, and the driving wheel is synchronously connected to a first driven wheel on the upper spindle and a second driven wheel on the lower spindle via a transmission belt; an upper cam for heating, an upper cam for forming and an upper cam for punching are fixedly mounted on the upper spindle in sequence, and a lower cam for heating and a lower cam for forming are fixedly mounted on the lower spindle in sequence; The belt pulling mechanism is used to transfer the carrier belt from one workstation to another, thereby realizing intermittent in-line production of the carrier belt; The heating actuator includes a heating upper die, a heating lower die, an upper heating cam contact roller, and a heating lower cam contact roller; the upper end of the heating upper die is pressed and contacted with the cam surface of the upper heating cam via the heating upper cam contact roller, and the lower end of the heating lower die is pressed and contacted with the cam surface of the lower heating cam via the heating lower cam contact roller; a pair of aligned heating bumps are provided on the lower portion of the heating upper die and the upper portion of the heating lower die, and the heating positions of the heating bumps on the carrier tape correspond to the set positions of the part receiving slots; The groove forming mechanism includes an upper forming die set, a lower forming die set, an upper forming cam contact roller, and a lower forming cam contact roller; the upper forming die set is pressed and contacted with the cam surface of the upper forming cam by the upper forming cam contact roller at the upper part, and the lower forming die set is pressed and contacted with the cam surface of the lower forming cam by the lower forming cam contact roller at the lower part; the lower part of the upper forming die set is provided with multiple rows of punching needles II and multiple rows of forming upper convex teeth, and the upper part of the lower forming die set is provided with punching holes II and forming lower concave teeth in a one-to-one correspondence; The forming upper die assembly includes a forming upper die fixing plate, a forming positioning plate, and a forming unloading plate; the forming upper die fixing plate, the forming positioning plate, and the forming unloading plate are arranged in sequence up and down; the forming upper die fixing plate is fixedly connected to the forming positioning plate; the forming positioning plate and the forming unloading plate are loosely connected by screws, and a gap is left between the lower end of the forming positioning plate and the upper end of the forming unloading plate; a plurality of spring through holes are provided on the forming positioning plate, and a compression spring II is installed in each spring through hole, the upper end of the compression spring II is in press-contact with the lower end of the forming upper die fixing plate, and the lower end of the compression spring II is in press-contact with the lower end of the forming upper die fixing plate. The upper end of the forming stripper plate is in press contact; multiple rows of punch needles II and multiple rows of forming upper convex teeth extending downward are installed in sequence in the middle of the forming positioning plate; electric heating tubes are inserted in the forming positioning plate on both sides of the multiple rows of punch needles II and the multiple rows of forming upper convex teeth; punch needle through holes and tooth through holes are provided on the forming stripper plate; upper die guide columns are vertically fixed near the four corners of the forming positioning plate, and the upper die guide columns form a guide fit with the guide holes provided near the four corners of the forming stripper plate; four limit guide columns are vertically fixed at the lower end of the forming stripper plate; The forming lower die group includes a forming lower die pushing plate, a groove forming mechanism support plate, a forming lower die fixing plate, a forming lower die base, and a forming lower die; the forming lower die is embedded and fixed in the middle position of the upper end of the forming lower die base, and multiple rows of punching holes II and multiple rows of forming lower concave teeth are sequentially arranged on the forming lower die, and the multiple rows of punching holes II correspond to the multiple rows of punching needles II of the forming upper die group, and the multiple rows of forming lower concave teeth correspond to the multiple rows of forming upper convex teeth; the forming lower die base, the forming lower die fixing plate, the groove forming mechanism support plate and the forming lower die pushing plate are sequentially arranged up and down; corresponding guide holes are provided on the forming lower die base corresponding to the position of the upper die guide column, corresponding to the lower end of the forming unloading plate The limiting guide column is provided with a corresponding clearance hole; the forming lower die base is fixedly connected to the front end of the forming lower die fixing plate by screws, and a limiting cylinder is installed at the rear end of the forming lower die fixing plate, and a limiting block is installed at the cylinder rod end of the limiting cylinder, and the lower end of the limiting block is in close contact with the forming lower die base; the groove forming mechanism support plate is a fixed plate, which is fixedly installed on the forming machine frame, and four guide holes are provided on the groove forming mechanism support plate near the four corners, and guide sleeves are provided in the guide holes, and a lower die guide column is respectively installed in the four guide sleeves, the upper end of the lower die guide column is vertically fixedly connected to the forming lower die fixing plate, and the lower end of the lower die guide column is vertically fixedly connected to the forming lower die push plate.

2. The ultra-precision flat-plate carrier forming machine according to claim 1, characterized in that: The punching mechanism includes a punching upper die group, a punching lower die group, and an upper cam contact roller for punching; the upper punching die group is pressed into contact with the cam surface of the upper cam for punching through the upper cam contact roller for punching; a plurality of rows of punching needles III are provided at the lower part of the punching upper die group, and a plurality of rows of punching holes III are provided in a one-to-one correspondence at the upper part of the punching lower die group.

3. The ultra-precision flat-plate carrier forming machine according to claim 1, characterized in that: The discharging mechanism includes a discharging motor and a discharging tray assembly; the discharging motor is fixed to the upper end of the discharging bracket, the output end of the discharging motor is connected to the discharging tray assembly, and the discharging motor drives the discharging tray assembly to rotate to realize the carrier discharging; a hand-pressed punching mechanism is also installed at the lower part of the discharging bracket, and the hand-pressed punching mechanism includes a discharging base, a carrier positioning plate, a punching needle guide plate, a punching needle limit plate, a pressure roller, a pressure rod and a pressure rod mounting seat; a removable particle collection box is embedded in the discharging base, and the carrier positioning plate is fixed to the upper end of the discharging base; two upward-extending guide rods are vertically fixed on both sides of the carrier positioning plate, and a carrier positioning shallow groove and punching hole I are provided in the middle of the carrier positioning plate; the punching needle guide plate is arranged above the carrier positioning plate, and the punching needle guide plate passes through the two guide holes on both sides Cooperating with the upper and lower guiding of the two guide rods, the middle part of the punch needle guide plate is densely provided with punch needle guide holes; the punch needle limiting plate is arranged above the punch needle guide plate, and the punch needle limiting plate forms an upper and lower guiding cooperation with the two guide rods through the two guide holes on both sides thereof, and densely distributed punch needles I are vertically fixed in the middle of the lower end of the punch needle limiting plate, and the punch needles I, punch needle guide holes and punching holes I correspond one to each other up and down; a compression spring I is provided between the lower end of the punch needle limiting plate and the upper end of the punch needle guide plate near both sides; the pressure roller is installed at the upper end of the punch needle limiting plate, and the pressure rod mounting seat is vertically installed on one side of the upper end of the carrier positioning plate, and the lower end of the pressure rod is connected to the upper part of the pressure rod mounting seat through a support shaft. When the pressure rod is pressed down, it contacts the pressure roller, so that the punch needle limiting plate drives the punch needle I downward to complete punching on the carrier.

4. The ultra-precision flat-plate carrier forming machine according to claim 2, characterized in that: The heating actuator also includes a heating upper limit cylinder and a heating lower limit cylinder; the heating upper mold group and the heating lower mold group are respectively slidably connected to the vertical heating guide rail through sliders fixed behind their respective back plates; the vertical heating guide rail is fixed on the back of the forming machine frame; the heating upper cam contact roller and the heating lower cam contact roller are respectively installed on the upper end of the back plate of the heating upper mold group and the lower end of the back plate of the heating lower mold group through roller frames; the heating upper limit cylinder and the heating lower limit cylinder are fixed on the forming machine frame, the upper cylinder rod end of the heating upper limit cylinder is fixedly connected to the upper end of the back plate of the heating upper mold group, and the lower cylinder rod end of the heating lower limit cylinder is fixedly connected to the lower end of the back plate of the heating lower mold group; under the action of the heating upper limit cylinder, the heating upper cam contact roller always keeps in contact with the cam surface of the heating upper cam; under the action of the heating lower limit cylinder, the heating lower cam contact roller always keeps in contact with the cam surface of the heating lower cam; temperature sensors are provided inside the heating upper mold group and the heating lower mold group, and heating rods are installed on both sides of the temperature sensors.

5. The ultra-precision flat-plate carrier forming machine according to claim 2, characterized in that: The upper forming mold group is connected to the upper cam contact roller for forming through the upper forming mold hoisting assembly; the upper forming mold hoisting assembly is composed of a forming hanger and a forming hanger seat arranged upper and lower; the forming hanger is fixedly connected to the upper forming mold fixing plate, and an inverted T-shaped hanging groove is provided at the upper end of the forming hanger; a hanging joint is provided at the lower end of the forming hanger, and the shape of the hanging joint matches the shape of the inverted T-shaped hanging groove, and the hanging joint is inserted into the inverted T-shaped hanging groove to realize the upper and lower fixed connection between the forming hanger and the forming hanger; a forming guide rail connecting plate is fixed on the back of the forming hanger, and a forming guide block is installed on the back of the forming guide rail connecting plate, and the forming guide block cooperates with the forming guide rail fixed on the forming machine frame, and the forming guide rail and the forming guide block constitute a linear guide pair; the upper cam contact roller for forming is installed at the upper end of the forming hanger, and a tension spring I is connected between the forming guide rail connecting plate and the forming frame along the up and down directions, so that the upper cam contact roller for forming is always kept in contact with the lower part of the upper cam for forming.

6. The ultra-precision flat-plate carrier forming machine according to claim 5, characterized in that: The lower cam contact roller for forming is installed at the lower end of the lower mold pushing plate, and a tension spring II is connected between the lower mold pushing plate and the frame workbench to ensure that the lower cam contact roller for forming is always in contact with the upper part of the lower cam for forming.

7. The ultra-precision flat-plate carrier forming machine according to claim 6, characterized in that: The punching needle II is a hollow punching needle; an air groove is provided at the lower end of the forming upper mold fixing plate corresponding to the position of the multiple rows of punching needles II, and an air intake passage connected to the air groove is built-in on one side of the forming upper mold fixing plate, and the outer port of the air intake passage is connected to the external air supply device through an air pipe; a particle blanking slot hole is provided on the forming lower mold base corresponding to the position of the multiple rows of punching holes II, and a particle collecting slot is provided at the upper end of the forming lower mold fixing plate corresponding to the position of the particle blanking slot hole, an air pipe joint is provided at one end of the particle collecting slot, an air pipe is connected to the air pipe joint, and the other end of the air pipe is connected to a sealing box provided under the frame workbench, and the sealing box is connected to a fan.

8. The ultra-precision flat-plate carrier forming machine according to claim 2, characterized in that: The punching lower die group includes a punching base and a punching lower die; the punching base is fixed on the forming machine frame, and a waste collection trough is provided on the punching base, and an air pipe joint is provided at the waste collection trough, and an air pipe is connected to the air pipe joint, and the other end of the air pipe is connected to a sealing box provided under the frame workbench, and the sealing box is connected to a fan; the punching lower die is fixed to the upper end of the punching base, and multiple rows of punching holes III are provided in the middle of the upper part of the punching lower die, and the multiple rows of punching holes III are communicated with the waste collection trough located below; guide holes are provided near both ends of the punching lower die, and guide sleeves are installed inside.

9. The ultra-precision flat-plate carrier forming machine according to claim 8, characterized in that: The punching upper die group includes a punching upper die fixing plate, a punch needle positioning plate, and a punching unloading plate which are sequentially arranged in the upper and lower directions; guide shafts extending downwards are fixedly installed at both ends of the punching upper die fixing plate, and the two guide shafts pass through the axial holes at both ends of the punch needle positioning plate and the axial holes at both ends of the punching unloading plate, and are respectively aligned with the two guide holes on the punching lower die up and down; the punch needle positioning plate is fixedly connected to the punching upper die fixing plate, and the punch needle positioning plate is provided with multiple rows of punch needles III extending downwards, and the multiple rows of punch needles III correspond one to one with the multiple rows of punch holes III on the punching lower die; the punch needle positioning plate and the punching unloading plate are loosely connected by screws, and multiple spring-discharging through holes are provided on the punch needle positioning plate, and a compression spring III is installed in each spring-discharging through hole, and the upper and lower ends of the compression spring III are respectively pressed and contacted with the lower end of the punching upper die fixing plate and the upper end of the punching unloading plate; multiple rows of punch needle through holes are correspondingly provided at the positions of the punching unloading plate corresponding to the multiple rows of punch needles III; The punching upper die group is connected to the punching upper cam contact roller through the punching upper die hoisting assembly. The punching upper die hoisting assembly is composed of a punching hanger and a punching hanger seat arranged up and down; the punching hanger is fixedly connected to the punching upper die fixing plate, and an inverted T-shaped hanging groove is provided at the upper end of the punching hanger, and a hanging joint is provided at the lower end of the punching hanger. The shape of the hanging joint matches the shape of the inverted T-shaped hanging groove, and the hanging joint is embedded in the inverted T-shaped hanging groove to realize the upper and lower fixation of the punching hanger and the punching hanger. Connection; a punching guide rail connecting plate is fixed on the back of the punching hanger, and a punching guide block is installed on the back of the punching guide rail connecting plate. The punching guide block cooperates with the punching guide rail fixed on the forming machine frame, and the punching guide rail and the punching guide block constitute a linear guide pair; the upper cam contact roller for punching is installed at the upper end of the punching hanger, and a tension spring III is connected between the punching guide rail connecting plate and the forming machine frame in the up and down directions, so that the upper cam contact roller for punching is always in contact with the lower part of the upper cam for punching.

10. The ultra-precision flat-plate carrier forming machine according to claim 1, characterized in that: The ultra-precision flat-plate carrier forming machine also includes a slitting mechanism, a waste mechanism and a receiving mechanism; the slitting mechanism is connected to the pulling mechanism, the receiving mechanism is connected to the slitting mechanism, and the waste mechanism is arranged below the tape outlet end of the slitting mechanism; the slitting mechanism is used to slit the carrier tape after forming and punching into multiple strips; the waste mechanism is used to cut the slit waste; the receiving mechanism is used to automatically wind and receive the finished carrier tape after slitting.

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