A full-automatic in-mold riveting mechanism

Abstract

The application provides a kind of full automatic in-mold riveting mechanism, including riveter installation bottom plate, electric control box, vibration disc assembly, material distribution assembly, rivet in place induction switch, guide rail assembly, rivet boat assembly, push boat cylinder assembly, stamping die structure assembly, rivet punch assembly, rivet anvil assembly and mold stroke induction sensing component;The push boat cylinder assembly is connected with the rivet boat assembly;Electric control box is connected with rivet in place induction switch, material distribution assembly, push boat cylinder assembly and mold stroke induction sensing component respectively.The application has high stability, high practicality, simple operation, easy to use, rivet and product material band riveting quality and other advantages, ensures that product quality consistency is high;Automatic riveting is adopted, the demand of operator is reduced, production cost is reduced, effectively avoids the situation that operator is injured due to improper operation during riveting process, reduces safety hazard, has good market prospect and application value, and is convenient for popularization and use.

Description

Technical Field

[0001] This invention belongs to the field of mechanical automation production and processing technology, and in particular relates to a fully automatic in-mold riveting mechanism. Background Technology

[0002] A rivet is a nail-shaped object used to connect two parts (or components) with through holes and caps at one end. In riveting, the parts are joined by their own deformation or interference fit. Traditional riveting is usually done manually or semi-automatically, with operators manually attaching the rivet (such as...) Figure 1 (As shown) placed in the rivet hole of the product strip (such as Figure 2 The rivets are then riveted in the positions shown, using manual or semi-automatic riveting equipment to achieve connection via the riveting mechanism. However, manual or semi-automatic riveting requires highly skilled operators, necessitates a large workforce, and is prone to injury from improper handling. Furthermore, manual placement results in low production efficiency. Misalignment and misalignment of rivets within the product's fixing holes can negatively impact product quality, leading to inconsistent quality and low overall production efficiency.

[0003] Therefore, it is necessary to study and improve the shortcomings of existing riveting methods, and develop a fully automatic in-mold riveting mechanism suitable for existing riveting equipment to achieve automatic riveting of rivets, improve production efficiency, reduce the number of operators and operational risks, and improve production safety and the quality and consistency of riveted products. Summary of the Invention

[0004] This invention provides a fully automatic in-mold riveting mechanism to solve the problems of low efficiency, high operational safety risks, low riveting efficiency, inaccurate rivet alignment, poor product quality consistency after riveting, and low degree of automation caused by manual riveting.

[0005] This invention provides a fully automatic in-mold riveting mechanism, including a riveting machine mounting base plate, an electrical control box for controlling the equipment, a vibratory feeder assembly mounted on the riveting machine mounting base plate for conveying rivets, a material distribution assembly connected to the output end of the vibratory feeder assembly, a rivet positioning sensor switch located at the end of the material distribution assembly, a guide rail assembly mounted on the riveting machine mounting base plate, a rivet-carrying boat assembly connected to the output end of the material distribution assembly, a pusher cylinder assembly connected to the rivet-carrying boat assembly, a stamping die structure assembly mounted on the riveting machine mounting base plate, a riveting punch assembly, a riveting anvil assembly, and a die stroke sensing assembly mounted on the stamping die structure assembly; the pusher cylinder assembly is connected to the rivet-carrying boat assembly and drives the rivet-carrying boat assembly to reciprocate between the material distribution assembly and the stamping die structure assembly; the position of the riveting punch assembly corresponds to the position of the riveting anvil assembly, and the riveting punch assembly is located below the riveting anvil assembly; the electrical control box is connected to the rivet positioning sensor switch, the material distribution assembly, the pusher cylinder assembly, and the die stroke sensing assembly respectively.

[0006] Preferably, the guide rail assembly includes a guide rail gantry support frame mounted on the mounting base plate of the riveting machine, a guide rail gantry frame mounted above the guide rail gantry support frame, a guide rail horizontally mounted on the guide rail gantry frame, a buffer seat fixed on the side of the guide rail gantry frame away from the material distribution component, a buffer pin movably mounted inside the buffer seat with one end protruding outside the buffer seat, and a buffer spring mounted inside the buffer seat between the buffer seat and the buffer pin.

[0007] Preferably, the material distribution assembly includes a material distribution base mounted on a guide rail gantry, a material distribution cover plate mounted above the material distribution base and connected to the output end of the moving plate assembly, a material distribution cylinder mounted above the material distribution cover plate, a swing block pin movably mounted inside the material distribution base, a rivet swing block straightening mechanism mounted on the feed inlet of the material distribution base, and a swing block spring mounted between the swing block pin and the material distribution base; the rivet swing block straightening mechanism includes two swing blocks with identical structures and corresponding positions; each swing block includes a swing block fixing hole located at the middle position of the upper part of the swing block body and a swing block latch located on the side wall of the swing block body for straightening the rivet; the swing block swings about the swing block fixing hole as a rotation axis, and the positions of the swing block latches located on both sides of the feed inlet of the material distribution base correspond to each other; the swing block pin abuts against the other side wall of the swing block corresponding to the position of the swing block latch; the front section of the cylinder core of the material distribution cylinder is provided with a guide part for guiding the rivet inserted into the center hole.

[0008] Preferably, the pusher cylinder assembly includes a pusher cylinder support frame fixed to the riveting machine mounting base plate and a pusher cylinder disposed on the pusher cylinder support frame; the pusher cylinder is connected to the nail-carrying boat assembly and drives the nail-carrying boat assembly to reciprocate on the guide rail assembly; the pusher cylinder support frame includes a pusher cylinder mounting plate fixed to the riveting machine mounting base plate, a pusher cylinder support plate, and a pusher cylinder support column disposed between the pusher cylinder mounting plate and the pusher cylinder support plate.

[0009] Preferably, the nail-carrying boat assembly includes a nail-carrying boat disposed within a guide rail, a cylinder connecting block disposed between the nail-carrying boat and the nail-pushing cylinder, left and right rivet straightening mechanism blocks movably disposed on both sides of the nail-carrying boat at the feeding end of the nail-carrying boat, rivet straightening mechanism pins for abutting against the left and right rivet straightening mechanism blocks, and a rivet straightening mechanism spring disposed between the nail-carrying boat and the rivet straightening mechanism pins; a bevel is provided on the side wall of one end of the left and right rivet straightening mechanism blocks away from the rivet straightening mechanism pins, which is inclined from the upper end of the left and right rivet straightening mechanism blocks toward the middle of the left and right rivet straightening mechanism blocks; the positions of the bevels of the left and right rivet straightening mechanism blocks disposed on both sides of the feeding end of the nail-carrying boat correspond to each other.

[0010] Preferably, the vibratory feeder assembly includes a first vibratory feeder mounting plate disposed on the upper surface of the riveting machine mounting base plate, a second vibratory feeder mounting plate disposed above the first vibratory feeder mounting plate, a vibratory feeder disposed above the second vibratory feeder mounting plate, a vibratory feeder rubber pad disposed between the second vibratory feeder mounting plate and the vibratory feeder, and an adjustment component disposed between the first and second vibratory feeder mounting plates for adjusting the height of the vibratory feeder fixed on the second vibratory feeder mounting plate; the output end of the vibratory feeder is connected to the feed inlet of the material distribution component; the adjustment component includes an adjustment screw vertically disposed between the first and second vibratory feeder mounting plates and an adjustment nut disposed within the adjustment screw for adjusting the height of the second vibratory feeder mounting plate.

[0011] Preferably, the stamping die structure assembly includes a lower stamping die structure assembly and an upper stamping die structure assembly disposed above the lower stamping die structure assembly; the lower stamping die structure assembly includes a lower support plate disposed below the riveting machine mounting base plate, a lower die holder disposed above the riveting machine mounting base plate, a lower foot pad disposed between the lower support plate and the lower die holder, a lower pad plate and a lower template plate sequentially fixed above the lower die holder; the lower pad plate is fixedly connected to the lower template plate; the upper stamping die structure assembly includes an upper die holder and an upper pad plate, a male clamping plate, a stop plate and a stripper plate sequentially disposed below the upper die holder; the upper die holder is fixedly connected to the upper pad plate and the upper pad plate is fixedly connected to the male clamping plate; the stop plate is fixedly connected to the stripper plate.

[0012] Preferably, the riveting assembly includes a riveting limiting block disposed on the upper die base, a riveting punch with one end disposed inside the riveting limiting block and the other end passing through an upper pad, a male clamping plate, a stop plate, and a stripper plate and protruding from the lower end face of the stripper plate, a riveting cover plate disposed on the upper end face of the upper die base, and a riveting spring disposed inside the riveting limiting block and located between the riveting cover plate and the riveting punch; the body of the riveting punch is an integral structure with its axes on the same straight line, and from bottom to top, it consists of a cylindrical riveting base, a cylindrical connecting part, a truncated cone, a cylindrical extension part, a cylindrical riveting part, and a cone; the diameter of the riveting part is the same as the diameter of the rivet center hole.

[0013] Preferably, the anvil assembly includes an anvil cylinder fixed on the lower die base, an anvil support block with rivet holes, and an anvil ejection top, an anvil ejection spring, and an anvil ejection stop screw arranged sequentially from bottom to top within the rivet holes. Preferably, the mold stroke sensing assembly includes a mold stroke sensing plate disposed on the lower end face of the upper mold base, a mold stroke sensing switch mounting bracket disposed on the upper end face of the lower mold base, and a mold stroke sensing switch fixed on the mold stroke sensing switch mounting bracket; the position of the mold stroke sensing plate corresponds to the position of the mold stroke sensing switch, and both the mold stroke sensing plate and the mold stroke sensing switch are connected to the electrical control box. Compared with existing technologies, the fully automatic in-mold riveting mechanism of this invention has advantages such as strong versatility, high stability, strong practicality, simple operation, convenient use, and high quality riveting of rivets to product strips, ensuring product quality consistency. After being output from the vibratory feeder, the rivets are guided and aligned by the material distribution component and pushed into the rivet transport boat component for alignment and clamping, improving the accuracy of position positioning. The rivets aligned and clamped on the rivet transport boat component are pushed to the stamping die structure component by the pusher cylinder component. Then, the stamping die structure component, the riveting component, and the anvil component work together to achieve fully automated rivet feeding, alignment, conveying, and riveting, improving the accuracy of rivet alignment with product strips and production efficiency, ensuring that the rivets are riveted to the same position in the product strip, improving the quality of rivet riveting on the product strip, and ensuring product quality consistency. The design is ingenious, with the swing block structure designed to swing downwards, allowing the swing... The block can cooperate with the guide part at the front of the cylinder core of the dispensing cylinder to guide and clamp the riveting. After being guided, the rivets are straightened and clamped by the rivet transport boat component of the dispensing cylinder, so that the rivets can be accurately inserted into the riveting holes of the product strip during subsequent riveting, improving the riveting accuracy of the product strip and thus improving product quality and consistency. The design of the riveting punch structure improves the riveting effect and quality of the riveting punch. In addition, the modular design improves the versatility and practicality of the fully automatic in-mold riveting mechanism. When in use, the fully automatic in-mold riveting mechanism can be installed in the stamping die structure of the existing riveting machine to realize the automated operation of riveting and punching, reducing the number of operators required, reducing production costs, effectively avoiding operator injury due to improper operation during the riveting process, reducing safety hazards, and has good market prospects and application value, making it easy to promote and use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a top view of the existing rivets.

[0016] Figure 2 This is a schematic diagram of the existing product material strip riveting structure.

[0017] Figure 3 Top view of the present invention.

[0018] Figure 4 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 5 yes Figure 4 Enlarged view of part A.

[0020] Figure 6 yes Figure 4 Enlarged view of part B.

[0021] Figure 7 yes Figure 4 Enlarged view of part C.

[0022] Figure 8 This is a structural schematic diagram of the riveting device of the present invention.

[0023] Figure 9 This is a schematic diagram of the feeding device of the present invention.

[0024] Figure 10 This is a schematic diagram of the riveting punch of the present invention.

[0025] Figure 11 This is a schematic diagram of the structure of the adjustment block of the present invention.

[0026] Figure 12 This is a schematic diagram of the mold-closing structure of the present invention.

[0027] The components include: a riveting machine mounting base plate 1; an electrical control box 11; a riveting position sensor switch 12; a vibratory feeder assembly 2; a first vibratory feeder mounting plate 21; a second vibratory feeder mounting plate 22; a vibratory feeder 23; vibratory feeder rubber pads 24; an adjusting assembly 25; an adjusting screw 251; an adjusting nut 252; a material distribution assembly 3; a material distribution base 31; a material distribution cover plate 32; a material distribution cylinder 33; a swing block ejector pin 34; a riveting swing block straightening mechanism 35; and a swing block 351. ; 3511 swing block fixing hole; 3512 swing block bayonet; 36 swing block spring; 4 guide rail assembly; 41 guide rail gantry support frame; 42 guide rail gantry frame; 43 guide rail; 44 buffer seat; 45 buffer pin; 46 buffer spring; 5 nail transport boat assembly; 51 nail transport boat; 52 cylinder connecting block; 53 left and right blocks of rivet straightening mechanism; 531 bevel; 54 rivet straightening mechanism pin; 55 rivet straightening mechanism spring; 6 push boat cylinder assembly; push nail Cylinder support frame 61; Push rivet cylinder mounting plate 611; Push rivet cylinder support plate 612; Push rivet cylinder support column 613; Push rivet cylinder 62; Stamping die structural component 7; Lower support plate 71; Lower die base 72; Lower foot pad 73; Lower pad plate 74; Lower template 75; Upper die base 76; Upper pad plate 77; Male clamping plate 78; Stop plate 79; Stripper plate 710; Riveting punch assembly 8; Riveting punch limit block 81; Riveting punch 82; Riveting punch cover plate 83; Riveting punch Spring 84; Riveting base 821; Connecting part 822; Conical frustum 823; Extension part 824; Riveting part 825; Cone 826; Riveting anvil assembly 9; Riveting anvil cylinder 91; Riveting anvil material support block 92; Riveting anvil ejection top 93; Riveting anvil ejection spring 94; Riveting anvil ejection stop screw 95; Mold stroke sensing component 10; Mold stroke sensing plate 101; Mold stroke sensing switch mounting bracket 102; Mold stroke sensing switch 103. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] This invention discloses a fully automatic in-mold riveting mechanism. This mechanism is installed within the stamping die structure of a riveting machine and automates the continuous stamping and riveting operation of rivets, thus achieving automatic riveting of rivets onto the product strip. Figure 1 and Figure 2 As shown, this enables automatic riveting of rivets to the product strip.

[0030] like Figures 3 to 12As shown, a fully automatic in-mold riveting mechanism includes a riveting machine mounting base plate 1 fixed within the stamping die structure of a riveting machine; an electrical control box 11 for controlling the equipment; a vibratory feeder assembly 2 for conveying rivets, mounted on the riveting machine mounting base plate 1; a material distribution assembly 3 connected to the output end of the vibratory feeder assembly; a rivet positioning sensor switch 12 located at the end of the material distribution assembly 3; a guide rail assembly 4 mounted on the riveting machine mounting base plate 1; a rivet-carrying boat assembly 5 connected to the output end of the material distribution assembly 3; a pusher cylinder assembly 6 connected to the rivet-carrying boat assembly; a stamping die structure assembly 7 mounted on the riveting machine mounting base plate 1; a riveting punch assembly 8 mounted on the stamping die structure assembly 7; a riveting anvil assembly 9 mounted on the stamping die structure assembly 7; and a die stroke sensing assembly 10. The electrical control box 11 is located on the riveting machine mounting base plate 1. The vibratory feeder assembly 2 is fixed on the riveting machine mounting base plate 1, located on one side of the riveting machine mounting base plate 1. In this embodiment, it is located on the left side of the riveting machine mounting base plate 1. The pusher cylinder assembly 6 is connected to the nail-carrying boat assembly 5 and drives the nail-carrying boat assembly 5 to reciprocate between the material distribution assembly 3 and the stamping die structure assembly 7; the position of the riveting punch assembly 8 corresponds to the position of the riveting anvil assembly 9, and the riveting punch assembly 8 is located below the riveting anvil assembly 9; the electrical control box 11 is connected to the rivet position sensing switch 12, the material distribution assembly 3, the pusher cylinder assembly 6, and the die stroke sensing component 10. The electrical control box can be any existing riveting machine control box, and the rivet position sensing switch 12 can be any commonly used position sensing switch in the riveting industry. During operation, the rivets output from the vibratory feeder assembly 2 are guided into the material distribution assembly 3 by the power of the vibratory feeder. After the rivet positioning sensor switch 12 at the end of the material distribution assembly 3 senses the rivet, the material distribution assembly 3 guides the rivet and pushes it into the rivet-carrying boat assembly 5 below the material distribution assembly and fixes it. The material distribution assembly then resets. After the material distribution assembly resets, the pusher cylinder assembly 6 pushes the rivet-carrying boat assembly 5 to move along the guide rail assembly 4 to the position of the stamping die structure assembly 7. After the rivet-carrying boat assembly 5 is pushed to the set position of the stamping die structure assembly 7 by the pusher cylinder assembly 6, the stamping die structure assembly 7, the riveting punch assembly 8, and the riveting anvil assembly 9 rivet and fix the rivet to the product strip.

[0031] The guide rail assembly 4 includes a guide rail gantry support frame 41 vertically mounted and fixed on the riveting machine mounting base plate 1, a guide rail gantry frame 42 fixed above the guide rail gantry support frame 41, a guide rail 43 horizontally arranged on the guide rail gantry frame 42, a buffer seat 44 fixed on the guide rail gantry frame 42, a buffer ejector pin 45 movably arranged in the buffer seat, and a buffer spring 46 for resetting the buffer ejector pin 45. The buffer seat 44 is fixed on the side of the guide rail gantry frame 42 away from the material distribution assembly 4. One end of the buffer ejector pin 45 is arranged inside the buffer seat 44, and the other end protrudes outside the buffer seat 44, and moves back and forth within the buffer seat. The buffer spring 46 is arranged inside the buffer seat and located between the buffer seat and the buffer ejector pin. When the buffer ejector pin is compressed, it can reset, thereby playing a buffering role. When the pusher cylinder assembly 6 pushes the nail-carrying boat assembly 5 to the stamping die structure assembly 7 station, the buffer ejector pin 45 can decelerate and buffer the nail-carrying boat assembly 5.

[0032] The material distribution assembly 3 includes a material distribution base 31 mounted on the guide rail gantry 42, a material distribution cover plate 32 mounted above the material distribution base and connected to the output end of the vibrating plate assembly 2, a material distribution cylinder 33 mounted above the material distribution cover plate 32, a swing block pin 34 movably mounted inside the material distribution base 31, a rivet swing block straightening mechanism 35 mounted on the feed inlet of the material distribution base 31, and a swing block spring 36 mounted between the swing block pin 34 and the material distribution base 31. The position of the rivet positioning sensor switch 12 corresponds to the position of the feed inlet of the rivet swing block straightening mechanism 35. The material distribution cover plate 32 has a feed inlet and a discharge outlet; wherein, the feed inlet and discharge outlet of the material distribution cover plate 32 are the same outlet; the feed inlet of the material distribution cover plate 32 is connected to the output end of the vibrating plate 23 of the vibrating plate assembly, and the discharge outlet of the material distribution cover plate 32 is connected to the feed inlet of the material distribution base 31. The material distribution base 31 is provided with a rivet inlet that connects the upper and lower end faces of the material distribution base 31 and allows rivets to pass through; the position of the rivet inlet corresponds to the position of the rivet inlet of the material distribution cover plate 32. The rivet swing block straightening mechanism 35 includes two swing blocks 351 with the same structure and corresponding positions; the two swing blocks 351 are movably disposed on the side wall of the inlet of the material distribution base 31, and both swing blocks 351 rotate at the position of the inlet of the material distribution base 31 with the lower part of the swing block 351 and the upper part of the swing block 351 as the rotation axis.

[0033] The swing block 351 includes a swing block fixing hole 3511 located at the middle of the upper part of the swing block 351 body and a swing block latch 3512 located on the side wall of the swing block 351 body for aligning the rivet. The swing block latch 3512 and the swing block 351 body form an L-shape structure. The positions of the swing block latches 3512 located on both sides of the feed inlet of the material distribution base 31 are corresponding, so that when the swing block 351 swings around the swing block fixing hole 3511 as the rotation axis, the rivet can be clamped by the swing block latches 3512 on the two swing blocks 351. The swing block pin 34 abuts against the other side wall of the swing block 351 corresponding to the position of the swing block latch 3512, so that after one end of the swing block pin 34 is compressed by the swing block spring 36, the other end of the swing block spring 36 can abut against the swing block 351, so that the rivet can be clamped when it is pushed into the position of the two swing blocks.

[0034] The dispensing cylinder 33 is positioned directly above the dispensing cover plate 32. The control end of the dispensing cylinder 33 is connected to the electrical control box 11. The front section of the cylinder core of the dispensing cylinder 33 has a guide section for guiding the rivet into the center hole of the inserted rivet. The position of the guide section at the front end of the cylinder core of the dispensing cylinder 33 corresponds to the outlet position of the dispensing cover plate 32 and the inlet position of the rivet swing block straightening mechanism 35. The guide section at the front end of the cylinder core of the dispensing cylinder 33 has a cylindrical structure, and the end portion of the guide section has a conical structure. The outer diameter of the cylindrical guide section is the same as the inner diameter of the rivet center hole, and the diameter of the conical structure at the end of the guide section is smaller than the diameter of the rivet center hole. When the guide part at the front end of the cylinder core of the distributing cylinder 33 moves downward, the guide part at the front end of the cylinder core of the distributing cylinder 33 enters the center hole of the rivet to guide the rivet, and pushes the rivet through the discharge port of the distributing cover plate 32 and the inlet of the rivet swing block straightening mechanism 35 to move towards the nail transport boat assembly 5, thereby guiding the rivet in the distributing assembly and pushing it into the nail transport boat assembly from the distributing assembly.

[0035] The pusher cylinder assembly 6 is fixed on the riveting machine mounting base plate 1, on the same side as the vibratory feeder assembly 2. The pusher cylinder assembly 6 includes a pusher cylinder support frame 61 fixed on the riveting machine mounting base plate 1 and a pusher cylinder 62 fixed on the pusher cylinder support frame 61; the pusher cylinder 62 is connected to the nail-carrying boat assembly 5 and drives the nail-carrying boat assembly 5 to reciprocate on the guide rail 43 in the guide rail assembly. The pusher cylinder support frame 61 includes a pusher cylinder mounting plate 611 and a pusher cylinder support plate 612 vertically fixed on the riveting machine mounting base plate 1, and a pusher cylinder support column 613 horizontally disposed between the pusher cylinder mounting plate and the pusher cylinder support plate; the pusher cylinder mounting plate is located between the pusher cylinder support plate and the guide rail gantry support frame 41.

[0036] To better clamp and move the rivets, a rivet-carrying boat assembly is designed. The rivet-carrying boat assembly 5 includes a rivet-carrying boat 51 for transporting rivets, a cylinder connecting block 52, left and right rivet-aligning mechanism blocks 53 for straightening and clamping the rivets, a rivet-aligning mechanism pin 54 for abutting against the left and right rivet-aligning mechanism blocks 53, and a rivet-aligning mechanism spring 55 disposed between the rivet-carrying boat 51 and the rivet-aligning mechanism pin 54. The rivet-carrying boat 51 is movably mounted on a guide rail 43. The rivet-carrying boat 51 is connected to the output end of a rivet-pushing cylinder 62 via the cylinder connecting block 52, and the rivet-pushing cylinder 62 pushes the rivet-carrying boat 51 to reciprocate within the guide rail 43. The rivet-carrying boat 65 has a rivet feeding end connecting its upper and lower end faces; the left and right rivet-aligning mechanism blocks 53 are movably mounted on both sides of the rivet-carrying boat at the feeding end of the rivet-carrying boat. One end of the rivet straightening mechanism pin 54 is connected to the rivet straightening mechanism spring 55, and the other end abuts against the left and right blocks 53 of the rivet straightening mechanism, so that the left and right blocks 53 of the rivet straightening mechanism can straighten and clamp the rivet. In order to better straighten and clamp the rivet in the nail carrier assembly 5, a bevel 531 is provided on the side wall of the left and right blocks 53 of the rivet straightening mechanism, which is inclined from the upper end of the left and right blocks to the middle of the left and right blocks of the rivet straightening mechanism; the bevel 531 is inclined from the upper end of the left and right blocks to the middle of the left and right blocks of the rivet straightening mechanism, and the bevel is located on the side wall of the left and right blocks 53 of the rivet straightening mechanism away from the rivet straightening mechanism pin 54. The positions of the bevels 531 of the left and right blocks 53 of the rivet straightening mechanism located on both sides of the feeding end of the nail carrier correspond to each other, thereby forming a V-shaped inclined surface, which facilitates the insertion of the rivet between the two left and right blocks 53 of the rivet straightening mechanism for straightening and clamping.

[0037] The vibratory feeder assembly 2 is fixed on the riveting machine mounting base plate 1 and is on the same side as the pusher cylinder assembly 6. The feeding device 3 includes a first vibratory feeder mounting plate 21, a second vibratory feeder mounting plate 22, a vibratory feeder 23, vibratory feeder rubber pads 24, and an adjustment assembly 25 for adjusting the height of the vibratory feeder fixed on the second vibratory feeder mounting plate 22 on the upper surface of the riveting machine mounting base plate 1. The first vibratory feeder mounting plate 21 is fixedly mounted on the upper surface of the riveting machine mounting base plate 1; the second vibratory feeder mounting plate 22 is fixedly mounted on the upper surface of the first vibratory feeder mounting plate 21 via the adjustment assembly 25, and the height of the second vibratory feeder mounting plate 22 is adjusted via the adjustment assembly 25. The vibratory feeder 23 is fixedly mounted on the upper surface of the second vibratory feeder mounting plate 22. The vibratory feeder rubber pads 24 are disposed between the second vibratory feeder mounting plate 22 and the vibratory feeder 23. The adjustment assembly 25 includes an adjustment screw 251 vertically disposed between the first vibratory feeder mounting plate 21 and the second vibratory feeder mounting plate 22, and an adjustment nut 252 disposed within the adjustment screw 251 for adjusting the height of the second vibratory feeder mounting plate 22. There are four adjustment screws 251, located at the four opposite corners of the first vibratory feeder mounting plate 21. Each adjustment screw 251 has three adjustment nuts 252; one is located on the upper end face of the first vibratory feeder mounting plate 21 to fix the adjustment screw to the first vibratory feeder mounting plate 21, and the other two are located on the upper and lower end faces of the second vibratory feeder mounting plate 22, respectively. The two adjustment nuts 252 on the upper and lower end faces of the second vibratory feeder mounting plate 22 adjust the position of the second vibratory feeder mounting plate 22, so that the output end of the vibratory feeder 23 connects to the feed inlet of the material distribution assembly 3, allowing the rivets output from the vibratory feeder to enter the feed inlet of the material distribution assembly 3 for material distribution.

[0038] The stamping die structure assembly 7 includes a lower stamping die structure assembly and an upper stamping die structure assembly disposed above the lower stamping die structure assembly. The lower stamping die structure assembly includes a lower support plate 71 disposed below the riveting machine mounting base plate 1, a lower die holder 72 disposed above the riveting machine mounting base plate 1, a lower foot pad 73 disposed between the lower support plate 71 and the lower die holder 72, a lower pad plate 74 and a lower template 75 sequentially fixed above the lower die holder 72; the lower pad plate 74 is fixedly connected to the lower template 75. The upper stamping die structure assembly includes an upper die holder 76 and an upper pad plate 77, a male clamping plate 78, a stop plate 79, and a stripper plate 710 sequentially disposed below the upper die holder 76; the upper die holder 76 is fixedly connected to the upper pad plate 77, and the upper pad plate 77 is fixedly connected to the male clamping plate 78; the stop plate 79 is fixedly connected to the stripper plate 710.

[0039] The riveting assembly 8 is disposed within the upper stamping die structure assembly. The riveting assembly 8 includes a riveting limiting block 81 disposed on the upper die base 76, a riveting punch 82 with one end disposed within the riveting limiting block 81 and the other end passing sequentially through an upper pad 77, a male clamping plate 78, a stop plate 79, and a stripper plate 710 and exposed on the lower end face of the stripper plate, a riveting cover plate 83 disposed on the upper end face of the upper die base 76, and a riveting spring 84 disposed within the riveting limiting block 81 and located between the riveting cover plate 83 and the riveting punch 82. The body of the riveting punch 82 is a one-piece structure and can be made of stainless steel. From bottom to top, the riveting punch 82 consists of a cylindrical riveting base 821, a cylindrical connecting part 822, a truncated cone 823, a cylindrical extension part 824, a cylindrical riveting part 825, and a cone 826. The diameter of the punch base is larger than the diameter of the connecting part; the diameter of the connecting part is the same as the diameter of the bottom of the truncated cone; the diameter of the upper part of the truncated cone is the same as the diameter of the extension part; the diameter of the extension part is smaller than the diameter of the riveting part, and the diameter of the riveting part is the same as the diameter of the bottom of the cone. The diameter of the riveting part is the same as the diameter of the center hole of the rivet. The axes of the punch base, connecting part, truncated cone, extension part, riveting part, and cone are all on a straight line.

[0040] The anvil assembly 9 is disposed within the lower stamping die structure assembly, and its position corresponds to that of the riveting assembly 8. The anvil assembly 9 includes an anvil cylinder 91 fixed to the lower die base 72, an anvil support block 92 with rivet holes, and, from bottom to top, an anvil ejection top 93, an anvil ejection spring 94, and an anvil ejection stop screw 95, all sequentially disposed within the rivet holes. The anvil ejection top 93 is located above the rivet holes, and its upper end face is flush with the upper end face of the anvil support block 92. The anvil ejection stop screw 95 is located below the rivet holes, and its lower end face is flush with the lower end face of the anvil support block 92. The anvil ejection spring 94 is disposed between the anvil ejection top 93 and the anvil ejection stop screw 95, and the anvil ejection spring 94 presses against the anvil ejection top 93, so that the upper end surface of the anvil ejection top 93 is flush with the upper end surface of the anvil support block 92.

[0041] The mold stroke sensing component 10 includes a mold stroke sensing plate 101 disposed on the lower end face of the upper mold base 76, a mold stroke sensing switch mounting bracket 102 disposed on the upper end face of the lower mold base 72, and a mold stroke sensing switch 103 fixed on the mold stroke sensing switch mounting bracket 102. The positions of the mold stroke sensing plate 101 and the mold stroke sensing switch 103 correspond to each other, and both the mold stroke sensing plate 101 and the mold stroke sensing switch 103 are connected to the electrical control box 11. The mold stroke sensing switch 103 can be any commercially available mold stroke sensing switch.

[0042] Before operation, all fully automatic in-mold riveting mechanisms are installed within the stamping die structure of the riveting machine, with the rivet transport vessel positioned directly below the discharge port of the material distribution component. Before the riveting machine's punch press descends, the vibratory feeder arranges the rivets and transports them to its output end. The vibratory feeder's output end is connected to the inlet of the material distribution cover plate 32, and the rivets are transported to the inlet of the material distribution cover plate 32 via the power of the vibratory feeder. The rivets enter the inlet position of the rivet swing block straightening mechanism 35 from the inlet of the material distribution cover plate 32. At this time, the rivet positioning sensor switch 12 senses the rivet and transmits the signal to the PLC controller in the electrical control box. The PLC controller immediately sends a signal to the solenoid valve controlling the material distribution cylinder 33, causing the material distribution cylinder 33 to push out. As the cylinder core of the material distribution cylinder 33 moves downward, the front guiding part of the cylinder core of the material distribution cylinder 33 first inserts into the rivet's center hole and cooperates with the rivet swing block straightening mechanism 35 to guide the rivet. As the cylinder core of the distributing cylinder 33 continues to move downwards, the rivet, under pressure, pushes the swing blocks 351 on both sides of the rivet outwards. At this time, the swing blocks 351 squeeze the swing block ejector pin 34, compressing the swing block spring 36 until the cylinder core of the distributing cylinder 33 completely pushes the rivet out of the distributing assembly 3 and into the feed port of the nail transport boat assembly 5. As the cylinder core of the distributing cylinder 33 continues to move downwards, pushing the rivet into the left and right blocks 53 of the two rivet straightening mechanisms, the slanted openings of the left and right blocks 53 of the rivet straightening mechanisms make it easy for the cylinder core of the distributing cylinder 33 to push the rivet between the left and right blocks 53 of the two rivet straightening mechanisms. During the process of the rivet being pushed into the left and right blocks 53 of the rivet straightening mechanism, the left and right blocks 53 of the rivet straightening mechanism are pushed outward by the rivet. When the left and right blocks 53 of the rivet straightening mechanism are pushed outward, they squeeze the ejector pin 54 of the rivet straightening mechanism. After the ejector pin 54 of the rivet straightening mechanism is squeezed, the spring 55 of the rivet straightening mechanism is compressed, which gives the ejector pin 54 of the rivet straightening mechanism a reverse force, so that the left and right blocks 53 of the rivet straightening mechanism can clamp the riveting. After the cylinder core of the dispensing cylinder 33 nails the rivet into the left and right blocks 53 of the straightening mechanism, the PLC controller of the electrical control box receives the cylinder core of the dispensing cylinder 33 into position signal and controls the cylinder core of the dispensing cylinder 33 to automatically retract. When the cylinder core of the dispensing cylinder 33 retracts into position and the induction indicator light is on, the rivet pusher cylinder 62 pushes the rivet transport boat 51 to move forward along the guide rail. When the induction indicator light of the position of the rivet transport boat 51 is on, it waits for the punch of the riveting machine to close the mold. As the punch press descends, when the guide pin on the stripper plate is inserted into the product strip, it guides the product strip. At the same time, the cone 826 and riveting part 825 of the riveting punch installed on the upper die holder are gradually inserted into the rivet center hole on the rivet carrier to guide the rivet. The punch press continues to descend, and the riveting punch pushes the rivet out of the rivet carrier. The rivet will first push the left and right blocks of the rivet straightening mechanism on both sides outward. The left and right blocks of the rivet straightening mechanism squeeze the rivet straightening mechanism ejector pin 54. The rivet straightening mechanism ejector pin 54 compresses the rivet straightening mechanism spring 55 until the rivet is pushed out of the rivet carrier by the riveting punch.When the rivet is inserted into the riveting hole on the product strip, the die stroke induction switch lights installed on the lower and upper die bases illuminate, and the punch press continues to descend. The stripper plate presses the floating product strip downwards. Simultaneously, the rivet anvil support block and rivet anvil cylinder installed on the lower die base, which hold the product strip and rivet, are also pressed down until the product strip is completely in contact with the lower die plate surface. When the product strip is completely in contact with the lower die plate surface, the stripper plate and the riveting punch retract simultaneously. When all stamping die components are pressed shut, the product strip is stamped and formed, and the hexagonal shank at the tail of the rivet is also punched into the product strip and riveted together with it, realizing the riveting process. After the punch press reaches the bottom dead center, it switches to opening the die and moving upwards. The riveting punch and the stripper plate leave the product strip. When the PLC controller in the electrical control box receives the die stroke induction switch light and turns off, the pusher cylinder, along with the rivet transport boat, retracts to its original position along the guide rail. After the rivet transport vessel is reset, the next rivet enters the feed port of the rivet swing block straightening mechanism 35 from the feed port of the material distribution cover plate 32. At this time, the rivet positioning sensor switch 12 senses the rivet and transmits the signal to the PLC controller in the control box. The PLC controller immediately sends a signal to the solenoid valve controlling the material distribution cylinder 33, causing the material distribution cylinder 33 to push out. When the cylinder core of the material distribution cylinder 33 moves downward, the front guiding part of the cylinder core of the material distribution cylinder 33 first inserts into the center hole of the rivet and cooperates with the rivet swing block straightening mechanism 35 to guide the rivet. The above operation is repeated to rivet the rivet to the product strip. The automatic replenishment, movement, stamping and riveting of the rivet are fully automated, thereby realizing the fully automatic riveting between the rivet and the product strip, improving the riveting efficiency and quality of the product strip, and ensuring high operator safety. It is easy to promote and use in the industry.

[0043] In addition to the single-station riveting method described in this embodiment, the fully automatic in-mold riveting mechanism of the present invention can also be implemented in a double-station riveting manner. The implementation method is similar to that of this embodiment and will not be repeated here.

[0044] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A fully automatic in-mold riveting mechanism, characterized in that, Includes a riveting machine mounting base plate (1), an electrical control box (11) for controlling the equipment, a vibratory feeder assembly (2) for conveying rivets mounted on the riveting machine mounting base plate (1), a material distribution assembly (3) connected to the output end of the vibratory feeder assembly, a rivet positioning sensor switch (12) located at the end of the material distribution assembly, a guide rail assembly (4) mounted on the riveting machine mounting base plate (1), a rivet transport boat assembly (5) connected to the output end of the material distribution assembly (3), a pusher cylinder assembly (6) connected to the rivet transport boat assembly, a stamping die structure assembly (7) mounted on the riveting machine mounting base plate (1), and a stamping die structure assembly. (7) includes a riveting punch assembly (8), a riveting anvil assembly (9), and a mold stroke sensing assembly (10); the pusher cylinder assembly (6) is connected to the nail carrier assembly (5) and drives the nail carrier assembly (5) to reciprocate between the material distribution assembly (3) and the stamping mold structure assembly (7); the position of the riveting punch assembly (8) corresponds to the position of the riveting anvil assembly (9), and the riveting punch assembly (8) is located below the riveting anvil assembly (9); the electrical control box (11) is connected to the rivet position sensing switch (12), the material distribution assembly (3), the pusher cylinder assembly (6), and the mold stroke sensing assembly (10).

2. The fully automatic in-mold riveting mechanism according to claim 1, characterized in that: The guide rail assembly (4) includes a guide rail gantry support frame (41) mounted on the riveting machine mounting base plate (1), a guide rail gantry frame (42) mounted above the guide rail gantry support frame (41), a guide rail (43) mounted horizontally on the guide rail gantry frame (42), a buffer seat (44) fixed on the guide rail gantry frame (42) on one side of the guide rail gantry frame (42) away from the material distribution assembly (4), a buffer pin (45) movably mounted in the buffer seat with one end exposed outside the buffer seat, and a buffer spring (46) mounted in the buffer seat between the buffer seat and the buffer pin.

3. The fully automatic in-mold riveting mechanism according to claim 2, characterized in that: The material distribution assembly (3) includes a material distribution base (31) mounted on a guide rail gantry (42), a material distribution cover plate (32) mounted above the material distribution base and connected to the output end of the moving plate assembly (2), a material distribution cylinder (33) mounted above the material distribution cover plate (32), a swing block pin (34) movably mounted inside the material distribution base (31), a rivet swing block straightening mechanism (35) mounted on the feed inlet of the material distribution base (31), and a swing block spring (36) mounted between the swing block pin (34) and the material distribution base (31); the rivet swing block straightening mechanism (35) includes two swing blocks (351) with the same structure and corresponding positions; the swing blocks ( 351) includes a swing block fixing hole (3511) located at the middle position of the upper part of the swing block (351) body and a swing block slot (3512) located on the side wall of the swing block (351) body for aligning the rivet; the swing block (351) swings around the swing block fixing hole (3511) as the rotation axis, and the positions of the swing block slots (3512) located on both sides of the feed port of the material distribution base (31) correspond to each other; the swing block pin (34) abuts against the other side wall of the swing block (351) corresponding to the position of the swing block slot (3512); the front section of the cylinder core of the material distribution cylinder (33) is provided with a guide part for guiding the rivet into the center hole of the inserted rivet.

4. The fully automatic in-mold riveting mechanism according to claim 3, characterized in that: The pusher cylinder assembly (6) includes a pusher cylinder support frame (61) fixed on the riveting machine mounting base plate (1) and a pusher cylinder (62) disposed on the pusher cylinder support frame (61); the pusher cylinder (62) is connected to the nail transport boat assembly (5) and drives the nail transport boat assembly (5) to reciprocate on the guide rail assembly (4); the pusher cylinder support frame (61) includes a pusher cylinder mounting plate (611) fixed on the riveting machine mounting base plate (1), a pusher cylinder support plate (611) and a pusher cylinder support column (613) disposed between the pusher cylinder mounting plate and the pusher cylinder support plate.

5. The fully automatic in-mold riveting mechanism according to claim 4, characterized in that: The nail carrier assembly (5) includes a nail carrier (51) disposed in a guide rail (44), a cylinder connecting block (52) disposed between the nail carrier (51) and the nail pusher cylinder (62), left and right rivet straightening mechanism blocks (53) movably disposed on both sides of the nail carrier feed end, a rivet straightening mechanism pin (54) for abutting the left and right rivet straightening mechanism blocks (53), and a rivet straightening mechanism spring (55) disposed between the nail carrier (51) and the rivet straightening mechanism pin (54); a bevel (531) is provided on the side wall of one end of the left and right rivet straightening mechanism blocks (53) away from the rivet straightening mechanism pin (54), which is inclined from the upper end of the left and right rivet straightening mechanism blocks towards the middle of the left and right rivet straightening mechanism blocks; the positions of the bevels (531) of the left and right rivet straightening mechanism blocks (53) disposed on both sides of the nail carrier feed end correspond to each other.

6. The fully automatic in-mold riveting mechanism according to claim 1, characterized in that: The vibratory feeder assembly (2) includes a first vibratory feeder mounting plate (21) disposed on the upper end face of the riveting machine mounting base plate (1), a second vibratory feeder mounting plate (22) disposed above the first vibratory feeder mounting plate (21), a vibratory feeder (23) disposed above the second vibratory feeder mounting plate (22), a vibratory feeder rubber pad (24) disposed between the second vibratory feeder mounting plate (22) and the vibratory feeder (23), and an adjustment component (25) disposed between the first vibratory feeder mounting plate (21) and the second vibratory feeder mounting plate (22) for adjusting the height of the vibratory feeder fixed on the second vibratory feeder mounting plate (22); the output end of the vibratory feeder (23) is connected to the feed inlet of the material distribution assembly (3); the adjustment component (25) includes an adjustment screw (251) vertically disposed between the first vibratory feeder mounting plate (21) and the second vibratory feeder mounting plate (22) and an adjustment nut (252) disposed in the adjustment screw (251) for adjusting the height of the second vibratory feeder mounting plate (22).

7. The fully automatic in-mold riveting mechanism according to claim 1, characterized in that: The stamping die structure assembly (7) includes a lower stamping die structure assembly and an upper stamping die structure assembly disposed above the lower stamping die structure assembly; the lower stamping die structure assembly includes a lower support plate (71) disposed below the riveting machine mounting base plate (1), a lower die base (72) disposed above the riveting machine mounting base plate (1), a lower foot pad (73) disposed between the lower support plate (71) and the lower die base (72), and a lower pad plate (74) sequentially fixed above the lower die base (72). The lower template (75) is fixedly connected to the lower pad (74); the upper stamping die structure component includes an upper die base (76) and an upper pad (77), a male clamping plate (78), a stop plate (79), and a stripper plate (710) arranged sequentially below the upper die base (76); the upper die base (76) is fixedly connected to the upper pad (77), and the upper pad (77) is fixedly connected to the male clamping plate (78); the stop plate (79) is fixedly connected to the stripper plate (710).

8. The fully automatic in-mold riveting mechanism according to claim 7, characterized in that: The riveting assembly (8) includes a riveting limiting block (81) disposed on the upper die base (76), a riveting punch (82) with one end disposed inside the riveting limiting block (81) and the other end passing through the upper pad plate (77), male clamp plate (78), stop plate (79), stripper plate (710) and exposed on the lower end face of the stripper plate, a riveting cover plate (83) disposed on the upper end face of the upper die base (76), and a riveting cover plate (83) disposed inside the riveting limiting block (81) and located in the riveting cover plate (83). A rivet spring (84) between the rivet punch (82); the rivet punch (82) has a monolithic structure with its axes on the same straight line, and from bottom to top are a cylindrical rivet base (821), a cylindrical connecting part (822), a truncated cone (823), a cylindrical extension part (824), a cylindrical riveting part (825), and a cone (826); the diameter of the riveting part is the same as the diameter of the rivet center hole.

9. The fully automatic in-mold riveting mechanism according to claim 8, characterized in that: The anvil assembly (9) includes an anvil cylinder (91) fixed on the lower mold base (72), an anvil support block (92) with rivet holes, and an anvil ejection top (93), an anvil ejection spring (94), and an anvil ejection stop screw (95) arranged sequentially from bottom to top in the rivet holes.

10. The fully automatic in-mold riveting mechanism according to any one of claims 7 to 9, characterized in that: The mold stroke sensing component (10) includes a mold stroke sensing plate (101) disposed on the lower end face of the upper mold base (76), a mold stroke sensing switch mounting bracket (102) disposed on the upper end face of the lower mold base (72), and a mold stroke sensing switch (103) fixed on the mold stroke sensing switch mounting bracket (102); the position of the mold stroke sensing plate (101) corresponds to the position of the mold stroke sensing switch (103), and both the mold stroke sensing plate (101) and the mold stroke sensing switch (103) are connected to the electrical control box (11).

Images