Automatic assembling machine for trunk handle

Abstract

The utility model provides an automatic assembling machine for a luggage case handle. The automatic assembling machine comprises a rack and a rotating disc rotationally installed on the rack. An automatic plastic part feeding device, an automatic handle feeding device and a plug pin pushing feeding device are arranged on the machine frame, and a plurality of sets of clamps used for clamping plastic parts are arranged on the rotary table. The automatic plastic part feeding device transports plastic parts to the clamps, the automatic handle feeding device moves handle bodies to the clamps to enable hole sites to correspond, the plug pin pushing feeding device transports and precisely inserts plug pins to complete assembling, the rotating disc is driven by the servo motor to rotate to form continuous assembly line work, and full-automatic and high-precision assembling is achieved. The problems of low manual assembly efficiency and poor precision are solved. In addition, the rack is further provided with an automatic handle film covering device, a film pulling assembly pulls a film, a film fixing assembly fixes the film, a cutting assembly cuts the film, a second mechanical arm mechanism transfers the handle to a positioning assembly, a scalding and welding assembly completes scalding and welding of the film, efficient and full-automatic film covering is achieved, and scratches, glue mark pollution or chemical corrosion are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a luggage handle automatic assembly machine. BACKGROUND

[0002] The luggage handle is a core functional component of the luggage, and is usually composed of a handle body and a linkage mechanism at both ends. Figure 1 The linkage mechanism is hinged by a latch between the handle body and a plastic part in a sliding manner.

[0003] With the rapid increase of the production capacity of the luggage, the market demand has higher requirements for the precision and efficiency of the luggage handle assembly, and full-automatic assembly equipment is urgently needed to replace manual operation. UTILITY MODEL CONTENTS

[0004] The utility model provides a luggage handle automatic assembly machine, realizes full-automatic and high-precision assembly of the luggage handle assembly, and solves the technical problems of low efficiency and poor precision of manual assembly.

[0005] To achieve the above object, the utility model provides the following technical scheme: a luggage handle automatic assembly machine, comprising a rack and a rotating disc rotatably installed on the rack, characterized in that: the rack is further provided with a plastic part automatic feeding device, a handle automatic feeding device and a latch push feeding device which are distributed outside the rotating disc and arranged in sequence along the circumference of the rotating disc, a plurality of clamps are arranged on the rotating disc and are arranged in sequence along the circumference of the rotating disc and used for clamping the plastic part, the plastic part automatic feeding device is used for automatically transporting the plastic part to the clamp, the handle automatic feeding device is used for automatically transporting the handle body to the clamp which has clamped the plastic part, and the latch push feeding device is used for automatically transporting the latch and assembling the latch.

[0006] The plastic part automatic feeding device accurately positions and moves the plastic part to the clamp on the rotating disc. The handle automatic feeding device moves the handle body to the clamp which has clamped the plastic part, so that the latch connecting hole of the handle body corresponds to the sliding hole of the plastic part. The latch push feeding device not only sequentially transports the latch, but also accurately inserts the latch into the sliding hole of the plastic part and the latch connecting hole of the handle body, and completes the hinge assembly. The rotating disc is driven by a servo motor and rotates at a preset rhythm, and sequentially sends the clamp to the plastic part feeding station, the handle assembly station and the latch assembly station, forming a continuous assembly line. In summary, the scheme can realize full-automatic and high-precision assembly of the luggage handle assembly, and solve the technical problems of low efficiency and poor precision of manual assembly.

[0007] The luggage handle automatic assembly machine can be further provided with the automatic plastic part feeding device, which comprises a sorting assembly for automatically sorting the plastic parts and a transfer assembly for transferring the plastic parts from the sorting assembly to the clamp; the sorting assembly comprises a straight-vibration feeder fixedly installed on the rack and a feeding bottom plate installed above the straight-vibration feeder, two groups of symmetrically arranged first sorting plates are fixed on the feeding bottom plate, a first feeding channel matched with the plastic parts is arranged between the two groups of first sorting plates, and a material blocking plate is arranged above the first feeding channel; the transfer assembly comprises a receiving block distributed at the discharging end of the first feeding channel, a reciprocating moving mechanism linked with the receiving block, and a material clamping mechanism for transferring the plastic parts from the receiving block to the clamp, a U-shaped positioning groove is arranged above the receiving block, the opening of the U-shaped positioning groove faces the first feeding channel, the end of the material blocking plate extends above the U-shaped positioning groove, the reciprocating moving mechanism comprises a transmission plate installed below the receiving block, the transmission plate is linked with a first air cylinder, the first air cylinder drives the receiving block to reciprocate in a direction perpendicular to the first feeding channel through the transmission plate, and the end of the feeding bottom plate is fixed with a limiting plate parallel to the transmission plate.

[0008] The above technical scheme can be connected with a vibrating feeder to continuously feed the plastic parts to the straight-vibration feeder, the straight-vibration feeder drives the plastic parts to enter the first feeding channel formed by the symmetric first sorting plates, the material blocking plate prevents the plastic parts from moving up and down through vertical limiting, and the plastic parts are arranged in order. When the plastic parts move to the end of the feeding channel, the U-shaped positioning groove of the receiving block is connected with the feeding channel to receive the plastic parts; the material blocking plate extends above the U-shaped positioning groove to prevent the plastic parts from sliding out. The first air cylinder drives the receiving block to move transversely through the transmission plate, so that the U-shaped positioning groove is separated from the material blocking range, and the limiting plate blocks the opening to prevent the plastic parts from falling off. The material clamping mechanism then grabs the plastic parts, accurately transfers them to the clamp through the swing air claw and multi-axis pneumatic drive, and completes positioning. As can be seen from the above, the present scheme significantly improves the efficiency and accuracy of plastic part feeding. The straight-vibration feeder cooperates with the material blocking piece to realize the uninterrupted sorting of special-shaped plastic parts, and the feeding speed is fast and stable.

[0009] The luggage handle automatic assembly machine can be further provided with: the material clamping mechanism comprises a swing air claw, a first sliding block linked with the swing air claw, and a fixed plate, the first sliding block is slidably matched with a first sliding rail arranged horizontally, the first sliding rail is fixedly installed on the fixed plate, the upper end of the fixed plate is installed with a lifting driving air cylinder, the output end of the lifting driving air cylinder is linked with the first sliding block, the fixed plate is linked with a second sliding block, the second sliding block is slidably matched with a second sliding rail arranged vertically, the second sliding rail is fixed on a rack, the rack is installed with a horizontal driving air cylinder, the output end of the horizontal driving air cylinder is linked with the fixed plate; the swing air claw comprises a body, two groups of air claws linked with the body, the two groups of air claws can rotate relative to the body at the same time, and the two groups of air claws can approach or separate from each other; each group of air claws is linked with a group of supporting claws, the lower part of the supporting claw is provided with a semicylindrical clamping body, when the two groups of supporting claws approach, the two groups of semicylindrical clamping bodies form a cylindrical clamping body, and the outer periphery of the semicylindrical clamping body is provided with anti-skid lines.

[0010] By adopting the technical scheme, the two groups of air claws of the swing air claw are driven to rotate or open and close synchronously through the body, the semicylindrical clamping bodies of the supporting claws are driven to close to form a cylindrical clamping body, the cylindrical clamping body is inserted into the first connecting hole of the plastic part, then the two groups of supporting claws are opened, and the plastic part is "clamped and taken". The lifting driving air cylinder moves vertically along the first sliding rail through the first sliding block, the height of the swing air claw is adjusted, the horizontal driving air cylinder moves horizontally along the second sliding rail through the second sliding block, and the fixed plate and the material clamping mechanism are translated as a whole to the material receiving block or the clamp position. The anti-skid lines increase the friction between the semicylindrical clamping body and the plastic part, and slipping is avoided. Decoupling control of lifting and horizontal movement ensures accurate positioning of the material clamping mechanism in three-dimensional space, and completes the whole process of grabbing, lifting, translating and releasing.

[0011] The luggage handle automatic assembly machine can be further provided with: the handle automatic feeding device comprises a conveyor, a first mechanical hand mechanism for transferring the handle body from the conveyor to the clamp, two groups of second sorting plates are arranged symmetrically above the conveyor, a second feeding channel matched with the gap below the handle body is arranged between the two groups of second sorting plates, a second material blocking piece is arranged above the second feeding channel, a clamping positioning baffle fixed to the conveyor is arranged at the discharging end of the second feeding channel, and a material taking gap capable of accommodating a group of handle bodies is formed between the second material blocking piece and the clamping positioning baffle.

[0012] The technical scheme is adopted, and the orderly conveying and accurate grabbing of the handle body are realized through the cooperative positioning of the second sorting plate and the material clamping positioning baffle. The conveyor continuously transports the handle body to the second feeding channel formed between the two groups of symmetrically arranged second sorting plates, and the second material blocking piece prevents the handle body from moving up and down through vertical limiting, thereby ensuring single-layer arrangement. When the handle body moves to the discharge end of the second feeding channel, the material taking gap between the material clamping positioning baffle and the second material blocking piece is limited to accommodate only one handle body. The first mechanical hand structure grabs the handle body from the material taking gap and transfers it to the clamp to complete positioning and clamping, thereby ensuring that the pin assembly position on the handle body is accurately aligned with the sliding hole of the plastic part. It should be noted that the conveyor is a prior art and can be directly purchased (therefore the specific structure is not disclosed here), which mainly consists of a belt, a motor (also referred to as an electric motor), etc., and a suitable specification can be selected for the handle body. At the same time, the end of the conveyor can be connected to a vibrating feeder to supply the handle body to the conveyor in an orderly manner.

[0013] The above-mentioned luggage handle automatic assembly machine can be further provided with: the first mechanical hand structure includes a rotary taking and placing plate, a rotary cylinder connected with the rotary taking and placing plate, and a second fixed plate, both ends of the rotary taking and placing plate are respectively provided with a suction cup, the body of the rotary cylinder is connected with a rotary taking and placing arm, the end of the rotary taking and placing arm is connected with a fourth sliding block, the fourth sliding block is slidingly connected with a fourth sliding rail, and the fourth sliding rail is fixedly installed on the second fixed plate; the upper end of the second fixed plate is provided with a second lifting driving cylinder, the output end of the second lifting driving cylinder is connected with a second sliding block; the second fixed plate is connected with a second sliding block, the second sliding block is slidingly connected with a fifth sliding rail arranged horizontally, the fifth sliding rail is fixed on a rack, and the rack is provided with a second horizontal driving cylinder, and the output end of the second horizontal driving cylinder is connected with the second fixed plate.

[0014] The above-mentioned technical scheme is adopted, the rotary cylinder drives the rotary taking and placing arm to rotate, so that the two suction cups keep consistent with the handle body, thereby facilitating the suction of the handle body; the second lifting driving cylinder vertically lifts along the fourth sliding rail through the fourth sliding block, thereby adjusting the height of the suction cup to adapt to the conveyor and the clamp. The second horizontal driving cylinder pushes the second fixed plate to move horizontally along the fifth sliding rail, thereby transferring the handle body grabbed by the suction cup to above the clamp. The rotary taking and placing plate can be turned over by 180° under the drive of the rotary cylinder, thereby ensuring that the handle body is accurately placed on the clamp at a preset angle and coaxially aligned with the sliding hole of the plastic part.

[0015] The luggage handle automatic assembly machine can be further provided with: the pin pushing feeding device comprises a bottom plate, a pin feeding block fixed to the bottom plate, and a pin guide chuck, a pin misalignment block is arranged between the pin feeding block and the pin guide chuck, a feeding hole is formed through the pin feeding block, the pin misalignment block is connected with a second cylinder mounted on the bottom plate, a receiving hole is arranged on the pin misalignment block, a thimble hole is also formed through the pin feeding block, the thimble hole is parallel to the feeding hole, a thimble is slidably arranged at the thimble hole, the thimble is connected with a third cylinder mounted on the bottom plate, the second cylinder is used to drive the pin misalignment block to reciprocate between the feeding hole and the thimble hole, the pin guide chuck is provided with a guide pipe positioning hole corresponding to the thimble hole, a pin guide pipe is fixed to the guide pipe positioning hole, and the pin guide pipe is hollow and has open ends; the bottom plate is connected with an adjusting plate below, the adjusting plate is connected with a third sliding block, the third sliding block is connected with a third sliding rail, and the end of the adjusting plate is connected with a fourth cylinder.

[0016] According to the technical scheme, the pin enters the pin feeding block through the feeding hole, the second cylinder drives the pin misalignment block to move transversely, the receiving hole is aligned with the feeding hole, and the pin is received. Then, the second cylinder drives the misalignment block to reset in the reverse direction, the receiving hole is aligned with the thimble hole, the third cylinder drives the thimble to push the pin linearly along the thimble hole, and the pin is inserted into the hole of the plastic part and the handle body through the rigid guide channel of the pin guide pipe. The pin guide chuck restricts the movement track of the pin through the guide pipe positioning hole, so that the coaxiality is ensured; the adjusting plate is driven by the fourth cylinder, the third sliding block is used to transversely fine-tune the overall position of the bottom plate along the third sliding rail, and the pin is accurately inserted into the target hole. The scheme significantly improves the precision and efficiency of pin assembly. The linkage design of the pin misalignment block and the thimble replaces the mechanical hand, and the equipment cost is reduced; the rigid channel formed by the guide pipe and the guide chuck realizes accurate insertion of the pin into the preset position.

[0017] The luggage handle automatic assembly machine can be further provided with: the pin pushing feeding device further comprises a handle positioning assembly, the handle positioning assembly comprises a pneumatic rotary clamping cylinder, the pneumatic rotary clamping cylinder comprises a body and a swing arm connected with the body, the end of the swing arm is connected with a connecting rod, the end of the connecting rod away from the swing arm is connected with a rotary down pressure rod through a linear bearing, and the lower end of the rotary down pressure rod is connected with a down pressure rubber head.

[0018] By the technical scheme, the luggage handle is precisely positioned and fixed without damage through multi-stage transmission of the pneumatic rotary clamping cylinder and flexible clamping. The body of the pneumatic rotary clamping cylinder drives the swing arm to rotate and retract, and drives the connecting rod to convert the rotary motion into linear motion; the linear bearing restricts the rotary down-striking rod to move only in the vertical direction, ensuring that the down-striking rubber head is vertically pressed to the surface of the handle body. The down-striking rubber head uniformly disperses the clamping force through flexible material (such as silicone), which not only fixes the handle position, but also avoids surface scratches caused by rigid contact.

[0019] The luggage handle automatic assembly machine described above can be further provided with a handle automatic film covering device, the handle automatic film covering device comprising a film pulling assembly for pulling the film, a film positioning assembly for cutting and positioning the film, a cutting assembly distributed between the film pulling assembly and the film positioning assembly, the handle automatic film covering device further comprising a handle positioning assembly distributed between the cutting assembly and the film pulling assembly, and a hot welding assembly for hot welding the film, the machine frame further being provided with a second mechanical hand assembly for transferring the assembled handle to the handle positioning assembly.

[0020] By the technical scheme, the film pulling assembly moves to the film positioning assembly to clamp one end of the film, and then drives the film to reset until the film pulling assembly stops moving, and the film positioning assembly fixes the film. It should be noted that at this time, the film is distributed above the handle positioning assembly and the hot welding assembly. The cutting assembly cuts the film according to the set length, while the second mechanical hand assembly places the assembled handle on the handle positioning assembly, the hot welding assembly moves and pushes one side of the film until it cooperates with the other side of the film pulling assembly, and the hot welding of the film is completed. At this time, the film has covered the handle. As can be seen from the above, this scheme can realize efficient and fully automatic handle peripheral film covering work without manual operation, and the film pulling and fitting process is free of mechanical friction, and the handle surface is free of scratch risk. The film edge is fixed by hot melting, without the need for glue, avoiding glue stain pollution or chemical corrosion. It should be noted that the second mechanical hand assembly is identical in structure to the first mechanical hand assembly, and therefore is not specifically disclosed here.

[0021] The luggage handle automatic assembly machine can be further provided with: the film pulling assembly includes upper and lower pulling film blocks arranged oppositely, the lower pulling film block is fixed on the film pulling linkage plate, the lifting rodless cylinder is installed on the film pulling linkage plate, the upper pulling film block is linked with the lifting rodless cylinder, the film pulling linkage plate is linked with the sixth cylinder, the body of the sixth cylinder is linked with the fifth cylinder, the body of the fifth cylinder is fixed on the rack, the extension stroke directions of the sixth cylinder and the fifth cylinder are parallel to each other; the film fixing assembly includes a film fixing seat and a pressing film block distributed above the film fixing seat, the pressing film block is linked with the seventh cylinder, the seventh cylinder is used to drive the pressing film block to reciprocate towards the film fixing seat, the two ends of the film fixing seat are fixed with guide rods, the upper part of the guide rods is fixed with an upper cylinder mounting plate, the body of the seventh cylinder is fixed on the upper cylinder mounting plate; the welding assembly includes a welding block and an eighth cylinder used to drive the welding block to move horizontally, the body of the eighth cylinder is linked with a ninth cylinder used to control the vertical movement of the welding block, the rack is provided with a first clearance hole corresponding to the welding assembly and the film fixing assembly; the welding seat is fixed on the film pulling linkage plate, the welding seat is provided with a reject chute, the reject chute is provided with a reject knife, the reject knife is linked with a reject cylinder, the body of the reject cylinder is linked with the body of the sixth cylinder through the setting of a cylinder plate; the handle positioning assembly includes a "convex" positioning block and a tenth cylinder used to drive the "convex" positioning block to move horizontally, the body of the tenth cylinder is linked with an eleventh cylinder used to control the vertical movement of the "convex" positioning block, the rack is provided with a second clearance hole corresponding to the "convex" positioning block; the cutting assembly includes a cutter mounting block and a cutter linkage cylinder used to drive the cutter mounting block to reciprocate horizontally along the film, the body of the cutter linkage cylinder is fixed on the rack, the cutter mounting block is installed with a cutter, and the cutter is arranged obliquely on the cutter mounting block.

[0022] By using the above technical scheme, the luggage handle is efficiently and losslessly coated through the cooperation of multiple cylinders and the linkage of modular components. The lifting rodless cylinder of the film pulling assembly controls the upper and lower pulling film blocks to clamp the end of the film, and the fifth cylinder drives the film pulling linkage plate to pull the film to a set length. The sixth cylinder pushes the pulling film block forward during the welding stage, and cooperates with the welding assembly to complete the film coating. The seventh cylinder of the film fixing assembly drives the pressing film block to press and fix the film along the guide rod, ensuring the positioning accuracy of cutting and welding. The eighth and ninth cylinders of the welding assembly drive the welding block to move horizontally and vertically, pushing the film on both sides to adhere to the outer periphery of the handle and being fixed by heat melting. The tenth and eleventh cylinders of the handle positioning assembly control the multi-directional movement of the "convex" positioning block, adapting to the curved shape of the handle. The oblique cutter of the cutting assembly is driven by the cutter linkage cylinder to cut the film horizontally, improving the cutting efficiency.

[0023] The luggage handle automatic assembly machine can be further provided with the clamp, which comprises a positioning seat and a fixing seat fixed on the rotating disc, two groups of symmetrically distributed insertion columns are arranged in the middle of the positioning seat, a strip-shaped sliding groove matched with the positioning seat is arranged on the fixing seat, third strip-shaped holes are uniformly distributed around the positioning seat, and the fixing seat is provided with a group of third positioning holes corresponding to each group of third strip-shaped holes.

[0024] By adopting the technical scheme, the two groups of insertion columns are inserted into the first connecting holes in the middle of the plastic part to realize clamping and positioning of the plastic part. When the two groups of insertion columns clamp the plastic part, the sliding holes on the two sides of the plastic part are not blocked, which is beneficial to assembly of the bolt. The handle positioning assembly fixes the relative position of the handle body and the plastic part. By loosening the fixing screws of the third positioning holes, the positioning seat can be transversely moved along the strip-shaped sliding groove, the relative position of the positioning seat and the bolt pushing device is adjusted according to actual conditions, and the positioning seat is slid to the target position and then locked again.

[0025] The utility model will be further explained in detail in connection with the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is an assembly schematic diagram of the handle body, the plastic part and the bolt;

[0027] Figure 2 It is a whole machine schematic diagram of the utility model embodiment;

[0028] Figure 3 It is a plastic part automatic feeding device schematic diagram of the utility model embodiment;

[0029] Figure 4 It is a clamp schematic diagram of the utility model embodiment;

[0030] Figure 5 It is a part structure schematic diagram of the transfer assembly of the utility model embodiment;

[0031] Figure 6 It is a first strip-shaped hole and second strip-shaped hole position schematic diagram of the utility model embodiment;

[0032] Figure 7 It is a part structure explosion schematic diagram of the plastic part automatic feeding device of the utility model embodiment;

[0033] Figure 8 It is a handle automatic feeding device schematic diagram of the utility model embodiment;

[0034] Figure 9 It is a bolt pushing and feeding device schematic diagram of the utility model embodiment;

[0035] Figure 10The partial structure explosion schematic view of the latch pushing and feeding device

[0036] Figure 11 The partial enlarged schematic view of the latch pushing and feeding device;

[0037] Figure 12 The schematic view of the latch feeding block, the latch staggered block and the latch guide chuck;

[0038] Figure 13 The schematic view of the handle automatic film covering device;

[0039] Figure 14 The schematic view of the cutting assembly;

[0040] Figure 15 The schematic view of the film pulling assembly;

[0041] Figure 16 The schematic view of the handle positioning assembly;

[0042] Figure 17 The schematic view of the film fixing assembly and the hot welding assembly;

[0043] Label notes: plastic parts a, first connecting hole a1, sliding hole a2; handle body b, plug connecting hole b1; plastic part automatic feeding device c, straight vibration feeder c1, feeding bottom plate c2, first sorting plate c3, first feeding channel c4, material blocking plate c5, connecting plate c6, first strip-shaped hole c7, second strip-shaped hole c8, material receiving block c9, U-shaped positioning groove c10, swing air claw c11, first sliding block c12, first fixed plate c13, first sliding rail c14, first lifting drive air cylinder c15, second sliding block c16, second sliding rail c17, first transverse drive air cylinder c18, supporting claw c19, semicircular column clamping body c20, transmission plate c21, first air cylinder c22, limiting plate c23; handle automatic feeding device d, conveyor d1, second sorting plate d2, second feeding channel d3, second material blocking piece d4, clamping and positioning baffle d5, material taking gap d6, rotary taking and placing plate d7, suction cup d8, rotary air cylinder d9, rotary taking and placing arm d10, second fixed plate d11, second lifting drive air cylinder d12, second transverse drive air cylinder d13; plug pushing and feeding device e, bottom plate e1, plug feeding block e2, feeding hole e3, plug misalignment block e4, second air cylinder e5, material receiving hole e6, ejector pin hole e7, ejector pin e8, third air cylinder e9, plug guide chuck e10, guide pipe positioning hole e11, plug guide pipe e12, adjusting open slot e13, connecting arm e14, pneumatic rotary clamping air cylinder e15, connecting rod e16, rotary downward pressing rod e17, downward pressing rubber head e18, conical material receiving slide e19, cylindrical material discharging slide e20, adjusting plate e21, third sliding block e22, third strip-shaped hole e23, third sliding rail e24, fourth air cylinder e25; handle automatic film covering device f, upper film pulling block f1, lower film pulling block f2, film pulling linkage plate f3, lifting rodless air cylinder f4, cutter f5, fifth air cylinder f6, sixth air cylinder f7, film positioning seat f8, film pressing block f9, seventh air cylinder f10, guide rod f11, upper air cylinder mounting plate f12, ironing block f13, eighth air cylinder f14, ninth air cylinder f15, first clearance hole f17, "convex" positioning block f18, tenth air cylinder f19, eleventh air cylinder f20, second clearance hole f21, cutter mounting block f22, cutter linkage air cylinder f23, ironing seat f24, reject cutter f25, reject air cylinder f26; clamp g, positioning seat g1, fixed seat g2, insertion column g3, third strip-shaped hole g4. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0045] As Figures 1 to 17 The luggage handle automatic assembly machine comprises a rack and a rotating disc rotatably installed on the rack, and a plastic part automatic feeding device c, a handle automatic feeding device d, a latch pushing feeding device e and a handle automatic film covering device f are arranged on the rack and distributed outside the rotating disc and arranged in sequence along the circumference of the rotating disc, a plurality of sets of clamps g for clamping the plastic parts a are arranged on the rotating disc and arranged in sequence and spaced along the circumference of the rotating disc, the plastic part automatic feeding device c is used for automatically transporting the plastic parts a to the clamps g, the handle automatic feeding device d is used for automatically transporting the handle bodies b to the clamps g that have clamped the plastic parts a, and the latch pushing feeding device e is used for automatically transporting the latches and assembling the latches. The plastic part automatic feeding device c accurately positions and transfers the plastic parts a into the clamps g on the rotating disc. The handle automatic feeding device d transfers the handle bodies b to the clamps g that have clamped the plastic parts a, so that the latch connecting holes b1 of the handle bodies b correspond to the sliding holes a2 of the plastic parts a. The latch pushing feeding device e not only sequentially transports the latches, but also accurately inserts the latches into the sliding holes a2 of the plastic parts a and the latch connecting holes b1 of the handle bodies b, thereby completing the hinged assembly. Then, the handle automatic film covering device f covers the outer periphery of the assembled handle, thereby avoiding scratching the handle. The rotating disc is driven by a servo motor and rotates at a preset beat, so that the clamps g are sequentially sent to the plastic part feeding, handle assembly and latch assembly stations, thereby forming a continuous assembly line. As can be seen from the above, the scheme can realize full-automatic and high-precision assembly of the luggage handle assembly, and solves the technical problems of low efficiency and poor precision of manual assembly.

[0046] The clamp g comprises a positioning seat g1 and a fixing seat g2 fixed on the rotating disc, the middle part of the positioning seat g1 is provided with two sets of symmetrically distributed insertion columns g3, the fixing seat g2 is provided with a strip-shaped sliding groove matched with the positioning seat g1, the periphery of the positioning seat g1 is uniformly provided with third strip-shaped holes g4, and the fixing seat g2 is provided with a set of third positioning holes corresponding to each set of third strip-shaped holes g4. The two sets of insertion columns g3 are inserted into the first connecting holes a1 in the middle part of the plastic part a, so that the plastic part a is clamped and positioned. When the two sets of insertion columns g3 clamp the plastic part a, the sliding holes a2 on the two sides of the plastic part a are not blocked, which is beneficial to the assembly of the latches. The handle positioning assembly fixes the relative positions of the handle body b and the plastic part a. By loosening the fixing screws of the third positioning holes, the positioning seat g1 can be transversely moved along the strip-shaped sliding groove, the relative positions of the positioning seat g1 and the latch pushing device are adjusted according to the actual situation, and the positioning seat g1 is slid to the target position and then locked again.

[0047] The plastic part automatic feeding device c comprises a sorting assembly for automatically sorting the plastic parts a and a transfer assembly for transferring the plastic parts a from the sorting assembly to the clamps g.

[0048] The sorting assembly comprises a straight-vibration feeder c1 and a feeding bottom plate c2 fixed above the straight-vibration feeder c1, two groups of symmetrically arranged first sorting plates c3 are fixed on the feeding bottom plate c2, a first feeding channel c4 matched with the plastic parts a is arranged between the two groups of first sorting plates c3, and a first material blocking piece is arranged above the first feeding channel c4. The two groups of symmetrically arranged first sorting plates c3 form the first feeding channel c4 and cooperate with the straight-vibration feeder c1 to realize automatic feeding and automatic sorting, ensure seamless connection in the whole process, and improve the overall efficiency. The first material blocking piece limits the plastic parts a above the first feeding channel c4, avoiding the up-and-down movement of the plastic parts a in the first feeding channel c4. The first material blocking piece comprises a blocking plate c5 arranged above the first feeding channel c4 and a connecting plate c6 integrally bent and formed with the blocking plate c5, the lower side of the connecting plate c6 is provided with a plurality of groups of first strip-shaped holes c7, the feeding bottom plate c2 is provided with a first positioning hole corresponding to each group of first strip-shaped holes c7, and the first strip-shaped hole c7 is connected with the first positioning hole through a screw; the side edge of the first sorting plate c3 is provided with a plurality of groups of second strip-shaped holes c8, the feeding bottom plate c2 is provided with a second positioning hole corresponding to each group of second strip-shaped holes c8, and the second strip-shaped hole c8 is connected with the second positioning hole through a screw. By adjusting the mounting position of the blocking plate c5 on the feeding bottom plate c2 (using the sliding freedom of the first strip-shaped hole c7), the vertical limiting height of the blocking plate c5 to the plastic parts a can be accurately controlled, and the demand for plastic parts a of different thicknesses can be adapted. The transverse position of the first sorting plate c3 can be flexibly adjusted through the second strip-shaped hole c8, so as to ensure that the width of the first feeding channel c4 is accurately matched with the size of the plastic parts a, and the adaptability is improved.

[0049] The transfer assembly comprises a receiving block c9, the receiving block c9 is distributed at the discharging end of the first feeding channel c4, and a U-shaped positioning groove c10 is arranged above the receiving block c9, the opening of the U-shaped positioning groove c10 faces the first feeding channel c4, the end of the blocking plate c5 extends above the U-shaped positioning groove c10, the receiving block c9 is connected with a reciprocating movement mechanism c for driving the receiving block c9 to reciprocate along the transverse direction of the feeding bottom plate c2, and the transfer assembly further comprises a clamping mechanism c for transferring the plastic parts a from the receiving block c9 to the clamp g. The U-shaped positioning groove c10 opens towards the first feeding channel c4, seamlessly connects with the outlet of the first feeding channel c4, and ensures that the plastic parts a smoothly slide into the receiving block c9 from the first feeding channel c4. The blocking plate c5 extends above the U-shaped positioning groove c10, vertically restricts the plastic parts a, prevents the plastic parts a from jumping out of the receiving block c9 due to inertia or vibration, and forms continuous limiting with the blocking structure of the first feeding channel c4 in the transverse direction, thereby ensuring the stability of the plastic parts a from the first feeding channel c4 to the receiving block c9. The reciprocating movement mechanism c can quickly switch the receiving block c9 between the clamping mechanism c and the first feeding channel c4, thereby facilitating the clamping mechanism c to take out the plastic parts a from the receiving block c9.

[0050] The clamping mechanism c comprises a swing air claw c11, a first sliding block c12 linked with the swing air claw c11, a first fixed plate c13, the first sliding block c12 is slidingly matched with a first sliding rail c14 arranged horizontally, the first sliding rail c14 is fixedly installed on the first fixed plate c13, the upper end of the first fixed plate c13 is installed with a first lifting driving air cylinder c15, the output end of the first lifting driving air cylinder c15 is linked with the first sliding block c12; the first fixed plate c13 is linked with a second sliding block c16, the second sliding block c16 is slidingly matched with a second sliding rail c17 arranged horizontally, the second sliding rail c17 is fixed on the rack, a first transverse driving air cylinder c18 is installed on the rack, the output end of the first transverse driving air cylinder c18 is linked with the first fixed plate c13. The swing air claw c11 is prior art, which can drive two air claws at the output end to open and close, and can also drive the two air claws to rotate as a whole. The first transverse driving air cylinder c18 controls the first fixed plate c13 to move transversely along the second sliding rail c17, the lifting air cylinder controls the swing air claw c11 to move vertically along the first sliding rail c14 until reaching above the receiving block c9, and the plastic part a is taken out after aligning with the plastic part a. The swing air claw c11 comprises a body, two groups of air claws linked with the body, the two groups of air claws can rotate relative to the body at the same time, and the two groups of air claws can approach or separate from each other; each group of air claws is linked with a group of supporting claws c19, the lower side of the supporting claw c19 is provided with a semi-cylindrical clamping body c20, when the two groups of supporting claws c19 approach, the two groups of semi-cylindrical clamping bodies c20 form a cylindrical clamping body, and the outer periphery of the semi-cylindrical clamping body c20 is provided with anti-skid lines. Since the first connecting hole a1 (as shown in Figure 1 ) in the middle of the plastic part a is relatively narrow and small, the supporting claw c19 is designed, when the two groups of supporting claws c19 are closed, the two groups of semi-cylindrical clamping bodies c20 form a cylindrical clamping body, which is convenient to enter the first connecting hole a1 in the middle of the plastic part a, and the two groups of supporting claws c19 are opened to realize the grabbing of the plastic part a. The anti-skid lines can increase the friction between the supporting claw c19 and the plastic part a, and avoid the plastic part a from falling out.

[0051] The reciprocating movement mechanism c comprises a transmission plate c21 installed below the receiving block c9, the transmission plate c21 is linked with a first air cylinder c22, the first air cylinder c22 drives the receiving block c9 to move reciprocally along a direction perpendicular to the first feeding channel c4 through the transmission plate c21, the end of the feeding bottom plate c2 is fixed with a limiting plate c23, and the limiting plate c23 is parallel to the transmission plate c21. The first air cylinder c22 drives the receiving plate to move transversely through the transmission plate c21 until the blocking plate c5 does not block the U-shaped positioning groove c10, then the clamping mechanism c can smoothly take out the plastic part a and transport it to the clamp g. When the receiving plate moves transversely, the opening of the U-shaped positioning groove c10 does not correspond to the first feeding channel c4, and the limiting plate c23 blocks the opening to avoid the plastic part a from sliding out of the U-shaped positioning groove c10, and the limiting plate c23 further guides the transverse movement of the receiving plate to avoid the receiving plate from deflecting.

[0052] The automatic working principle of the plastic piece automatic feeding device c is as follows: plastic pieces a are orderly transported into the first feeding channel c4 in cooperation with the vibrating feeding tray. The plastic pieces a are naturally sorted in the first feeding channel c4 and are orderly transported forward. When the plastic block moves into the U-shaped positioning groove c10 of the receiving block c9, the receiving block c9 moves transversely until the material blocking plate c5 does not block the U-shaped positioning groove c10, and the swing air claw c11 moves downward until the two sets of supporting claws c19 are inserted into the first connecting hole a1 in the middle of the plastic piece a. The two sets of supporting claws c19 are opened to realize reverse clamping of the plastic piece a. Then the swing air claw c11 drives the plastic piece a to move from the receiving block c9 to the clamp g. In actual use, according to the placement direction of the clamp g, the swing air claw c11 drives the plastic piece a to rotate to the appropriate angle. The whole process does not need manual intervention, greatly improving the feeding efficiency of the plastic piece a.

[0053] The handle automatic feeding device d includes a conveyor d1, a first mechanical hand structure for transferring the handle body b from the conveyor d1 to the clamp g, two sets of symmetrical second sorting plates d2 are arranged above the conveyor d1, a second feeding channel d3 matched with the gap below the handle body b is arranged between the two sets of second sorting plates d2, a second material blocking piece d4 is arranged above the second feeding channel d3, a clamping positioning baffle d5 fixed to the conveyor d1 is arranged at the discharge end of the second feeding channel d3, and a material taking gap d6 capable of accommodating a set of handle bodies b is formed between the clamping positioning baffle d5 and the second material blocking piece d4. The conveyor d1 continuously transports the handle body b to the second feeding channel d3 formed between the two sets of symmetrical second sorting plates d2, the second material blocking piece d4 prevents the handle body b from moving up and down through vertical limiting, and ensures single-layer arrangement. When the handle body b moves to the discharge end of the second feeding channel d3, the material taking gap d6 between the clamping positioning baffle d5 and the second material blocking piece d4 is limited to accommodate only one handle body b. The first mechanical hand structure grabs the handle body b from the material taking gap d6 and transfers it to the clamp g to complete positioning and clamping, ensuring that the pin assembly position on the handle body b is accurately aligned with the sliding hole a2 of the plastic piece a. It should be noted that the conveyor d1 is a prior art and can be directly purchased (therefore the specific structure is not disclosed here), which is mainly composed of a belt, a motor (also called an electric motor), etc. Suitable specifications for the handle body b can be selected. At the same time, the end of the conveyor d1 can be connected to the vibrating feeding tray to realize orderly feeding of the handle body b to the conveyor d1.

[0054] The first mechanical hand mechanism comprises a rotating pick-and-place plate d7, a rotating cylinder d9 linked with the rotating pick-and-place plate d7, a second fixed plate d11, two ends of the rotating pick-and-place plate d7 are respectively provided with suction cups d8, the body of the rotating cylinder d9 is linked with a rotating pick-and-place arm d10, the end of the rotating pick-and-place arm d10 is linked with a fourth sliding block, the fourth sliding block is slidingly matched with a fourth sliding rail, the fourth sliding rail is fixedly installed on the second fixed plate d11, the upper end of the second fixed plate d11 is installed with a second lifting driving cylinder d12, the output end of the second lifting driving cylinder d12 is linked with a second sliding block; the second fixed plate d11 is linked with a second sliding block, the second sliding block is slidingly matched with a fifth sliding rail which is horizontally placed, the fifth sliding rail is fixed on a rack, the rack is installed with a second transverse driving cylinder d13, the output end of the second transverse driving cylinder d13 is linked with the second fixed plate d11. The rotating cylinder d9 drives the rotating pick-and-place arm d10 to rotate the rotating pick-and-place plate d7, so that the two ends of the suction cups d8 keep consistent with the direction of the handle body b, so as to facilitate the suction of the handle body b; the second lifting driving cylinder d12 vertically lifts along the fourth sliding rail through the fourth sliding block, and adjusts the height of the suction cup d8 to adapt to the conveyor d1 and the clamp g. The second transverse driving cylinder d13 pushes the second fixed plate d11 to move transversely along the fifth sliding rail, and transfers the handle body b gripped by the suction cup d8 to above the clamp g. The rotating pick-and-place plate d7 can be turned over by 180° under the drive of the rotating cylinder d9, so as to ensure that the handle body b is accurately placed on the clamp g at a preset angle, and is coaxially aligned with the sliding hole a2 of the plastic part a.

[0055] The latch pushing and feeding device e comprises a bottom plate e1, a latch feeding block e2 and a latch guide chuck e10 fixed on the bottom plate e1, a latch misalignment block e4 arranged between the latch feeding block e2 and the latch guide chuck e10, a feeding hole e3 penetrating through the latch feeding block e2, the latch misalignment block e4 is linked with a second air cylinder e5 installed on the bottom plate e1, a receiving hole e6 is arranged on the latch misalignment block e4, a thimble hole e7 penetrating through the latch feeding block e2 is further arranged, the thimble hole e7 is parallel to the feeding hole e3, a thimble e8 is slidingly arranged at the thimble hole e7, the thimble e8 is linked with a third air cylinder e9 installed on the bottom plate e1, and the second air cylinder e5 is used to drive the latch misalignment block e4 to reciprocate between the feeding hole e3 and the thimble hole e7. The latch is sequentially fed into the feeding hole e3 of the latch feeding block e2 through an external feeding system (such as air blowing). The second air cylinder e5 drives the lateral movement of the latch misalignment block e4, so that the receiving hole e6 is aligned with the feeding hole e3, and a latch is caught. The second air cylinder e5 moves reversely to drive the latch misalignment block e4 to reset, so that the receiving hole e6 is aligned with the thimble hole e7. At this time, the latch is in front of the thimble hole e7, and the thimble e8 in the thimble hole e7 is aligned with the end of the latch. At the same time, the other end of the latch misalignment block e4 blocks the feeding hole e3. The third air cylinder e9 drives the thimble e8 to slide forward along the thimble hole e7, and directly pushes the latch out of the receiving hole e6. The pushing force of the thimble e8 accurately inserts the latch into the latch connecting hole b1 below the end of the handle body b, and the two ends of the latch are respectively inserted into the sliding hole a2, and the assembly is completed. Therefore, the automatic feeding of the latch can be completed, and the latch can be accurately assembled between the plastic part a and the handle body b. Through the linkage design of the latch misalignment block e4 and the thimble e8, the steps of grabbing and transferring by the mechanical hand are omitted, the structure is simplified, only two air cylinders (the second and third air cylinders e9) are needed to complete the lateral misalignment and pushing action, and the manufacturing cost is reduced. At the same time, the thimble e8 is driven by the air cylinder, the pushing force and the stroke can be accurately controlled, the assembly resistance of the handle body b and the plastic part a is overcome, and the latch jamming or deflection caused by insufficient pushing force is avoided.

[0056] The ejector guide clamp e10 is provided with a guide tube positioning hole e11 corresponding to the ejector hole e7. The guide tube positioning hole e11 is fixed with an ejector guide tube e12. The ejector guide tube e12 is hollow inside and open at both ends. When the ejector misalignment block moves to the position corresponding to the feeding hole e3, the guide clamp blocks the end of the receiving hole e6 away from the feeding hole e3. Thus, when the ejector is blown from the feeding hole e3 into the receiving hole e6, it will not slide out of the receiving hole e6. At the same time, the ejector guide clamp e10 guides the lateral movement of the ejector misalignment block, improves the lateral movement stability of the ejector guide clamp e10, and ensures that the receiving hole e6 and the feeding hole e3 are accurately corresponding or the receiving hole e6 and the ejector hole e7 are accurately corresponding. When the ejector misalignment block moves to the position corresponding to the ejector hole e7, the guide tube positioning hole e11 is coaxially aligned with the ejector hole e7, thereby forming a rigid guide channel extending from the ejector hole e7 to the target assembly position, forming a smooth linear motion path, and completing the precise insertion of the ejector.

[0057] The guide tube positioning hole e11 is connected with an adjusting opening groove e13 penetrating the side wall of the ejector guide clamp e10. The upper side of the adjusting opening groove e13 is connected with an arm e14. A counterbore hole is arranged on the arm e14. A screw hole is arranged on the ejector guide clamp e10 corresponding to the counterbore hole. The ejector guide tube e12 is inserted into the guide tube positioning hole e11. The position can be adjusted by the lateral opening of the adjusting opening groove e13. The counterbore hole and the screw hole are coaxially designed. After the screw is screwed in, it abuts against the guide tube, and the position of the guide tube is fixed by friction or local compression.

[0058] The handle positioning assembly includes a pneumatic rotary clamping cylinder e15. The pneumatic rotary clamping cylinder e15 includes a body and a swing arm connected with the body. The end of the swing arm is connected with a connecting rod e16. The end of the connecting rod e16 away from the swing arm is connected with a rotary down pressure rod e17 through a linear bearing. The lower end of the rotary down pressure rod e17 is connected with a down pressure rubber head e18. It should be noted that the pneumatic rotary clamping cylinder e15 is a prior art and can be directly purchased. The body of the pneumatic rotary clamping cylinder e15 is driven by compressed air to rotate the swing arm connected therewith. At the same time, the swing arm can also perform the action of extending or retracting. When it is necessary to press the handle body b, the swing arm rotates and retracts until the down pressure rubber head e18 abuts against the upper end of the handle body b. The down pressure rubber head e18 applies uniform clamping force, which fixes the position of the handle and avoids scratching the workpiece caused by rigid contact.

[0059] The receiving hole e6 includes a tapered receiving chute e19 and a cylindrical discharging chute e20, the large end of the tapered receiving chute e19 is towards the pin feeding block e2, and the cylindrical discharging chute e20 is in communication with the small end of the tapered receiving chute e19. When the receiving hole e6 corresponds to the feeding hole e3, the slope design of the tapered chute avoids the pin being stuck at the entrance due to angle deviation, and is especially suitable for slender pins. When the receiving hole e6 corresponds to the ejector pin hole e7, the cylindrical chute is coaxial with the ejector pin hole e7, so as to ensure that the pushing direction of the pin is coincided with the axis of the target hole.

[0060] The bottom plate e1 is connected with an adjusting plate e21, the adjusting plate e21 is linked with a third sliding block e22, the third sliding block e22 is linked with a third sliding rail e24, and the end of the adjusting plate e21 is linked with a fourth cylinder e25. By adjusting the extension length of the fourth cylinder e25, the displacement of the adjusting plate e21 and the overall structure above the adjusting plate e21 in the horizontal direction can be accurately controlled, so that the pin can be accurately inserted into the predetermined position, thereby improving the assembly efficiency and precision.

[0061] The working principle of the pin push feeding device e is as follows: one end of the feeding hole e3 is connected with a transparent air pipe, pins are transported in the air pipe, once the receiving hole e6 corresponds to the feeding hole e3, a group of pins are blown into the receiving hole e6. The second cylinder e5 moves reversely to drive the pin misalignment block e4 to reset, so that the receiving hole e6 is aligned with the ejector pin hole e7. At this time, the pin is in front of the ejector pin hole e7, and the ejector pin e8 in the ejector pin hole e7 is aligned with the end of the pin. The third cylinder e9 drives the ejector pin e8 to slide forward along the ejector pin hole e7, directly pushes the pin out of the receiving hole e6, and passes through the pin guide pipe e12, until the pushing force of the ejector pin e8 accurately inserts the pin into the hole below the end of the handle body b, and the two ends of the pin are respectively inserted into the sliding hole a2, and the assembly is completed.

[0062] The handle automatic film covering device f includes a film pulling assembly for pulling the film, a film positioning assembly for cutting and positioning the film, a cutting assembly distributed between the film pulling assembly and the film positioning assembly, a handle positioning assembly distributed between the cutting assembly and the film pulling assembly is arranged on the rack, a hot welding assembly for hot welding the film, and a second mechanical hand structure for transferring the assembled handle to the handle positioning assembly is arranged on the rack. The structure of the second mechanical hand structure is consistent with that of the first mechanical hand structure, and therefore is not specifically disclosed here.

[0063] The film pulling assembly comprises upper and lower film pulling blocks f1 and f2 arranged oppositely, the lower film pulling block f2 is fixed on the film pulling linkage plate f3, the lifting rodless cylinder f4 is installed on the film pulling linkage plate f3, the upper film pulling block f1 is linked with the lifting rodless cylinder f4, the fifth cylinder f6 is linked with the film pulling linkage plate f3, and the body of the fifth cylinder f6 is fixed on the rack. It should be noted that the lifting rodless cylinder f4 is a prior art and can be obtained by purchase, and its function is to control the vertical reciprocating movement of the upper film pulling block f1, so as to realize the opening and closing between the upper film pulling block f1 and the lower film pulling block f2, and realize the film pulling and film releasing. When working, the fifth cylinder f6 controls the whole movement of the two film pulling blocks towards the film fixing assembly through the film pulling linkage plate f3, when the end of the film enters between the upper film pulling block f1 and the lower film pulling block f2, the lifting rodless cylinder f4 drives the upper film pulling block f1 to move downward to clamp the end of the film, the film fixing assembly releases the film, and then the fifth cylinder f6 can drive the film to retreat, the film is pulled to a certain length, the film fixing assembly is lowered to fix the film, and subsequent cutting and welding are facilitated. The sixth cylinder f7 is arranged between the film pulling linkage plate f3 and the fifth cylinder f6, the body of the sixth cylinder f7 is linked with the output end of the fifth cylinder f6, the output end of the sixth cylinder f7 is linked with the film pulling linkage plate f3, and the extension stroke direction of the sixth cylinder f7 is parallel to the extension stroke direction of the fifth cylinder f6. When welding, the sixth cylinder f7 drives the upper film pulling block f1 and the lower film pulling block f2 to move forward synchronously through the film pulling linkage plate f3, and the purpose of the forward movement is to cooperate with the welding assembly to perform welding work. The two actions of "forward welding" and "forward clamping film" are controlled by the sixth cylinder f7 and the fifth cylinder f6, and the processing precision is improved.

[0064] The film fixing assembly comprises a film fixing seat f8 and a film pressing block f9 distributed above the film fixing seat f8, the film pressing block f9 is linked with the seventh cylinder f10, the seventh cylinder f10 is used to drive the film pressing block f9 to reciprocate towards the film fixing seat f8, the two ends of the film fixing seat f8 are fixed with guide rods f11, the upper ends of the guide rods f11 are fixed with an upper cylinder mounting plate f12, and the body of the seventh cylinder f10 is fixed on the upper cylinder mounting plate f12. The seventh cylinder f10 controls the up-down movement of the film pressing block f9 to realize the fixing and releasing of the film. The guide rods f11 on both sides improve the overall structural stability of the film fixing assembly.

[0065] The hot welding assembly comprises a hot block f13, an eighth cylinder f14 for driving the hot block f13 to move laterally, a body of the eighth cylinder f14 is connected with a ninth cylinder f15 for controlling vertical movement of the hot block f13, and a first clearance hole f17 corresponding to the hot welding assembly and the film positioning assembly is arranged on the rack. The eighth cylinder f14 and the ninth cylinder f15 cooperate with each other to move the hot block f13 located below the first clearance hole f17 to above the handle positioning assembly. At the same time, the hot block f13 pushes one side of the film to move, the upper film pulling block f1 and the lower film pulling block f2 drive the other side of the film to move, and the two are close to each other, so that the film is wrapped around the handle. Finally, the hot block f13 hot welds the film. The first clearance hole f17 provides space for the lateral movement of the hot block f13, avoiding interference with the film positioning assembly or the rack structure.

[0066] The pulling film linkage plate f3 is fixed with a hot seat f24, the hot seat f24 is provided with a reject chute, the reject chute is provided with a reject knife f25, the reject knife f25 is connected with a reject cylinder f26, and a body of the reject cylinder f26 is connected with a body of the sixth cylinder f7 through the cylinder plate. During hot welding, the hot block pushes one side of the film to move. The upper film pulling block and the lower film pulling block drive the other side of the film to move, the hot seat f24 moves synchronously with the pulling film linkage plate f3, the hot seat f24 cooperates with the hot block to complete the hot welding work. The reject cylinder f26 drives the reject knife f25 to move laterally along the reject chute to accurately cut the edge of the film or the excess waste.

[0067] The handle positioning assembly comprises a "convex" positioning block f18, a tenth cylinder f19 for driving the "convex" positioning block f18 to move laterally, a body of the tenth cylinder f19 is connected with an eleventh cylinder f20 for controlling vertical movement of the "convex" positioning block f18, and a second clearance hole f21 corresponding to the "convex" positioning block f18 is arranged on the rack. The "convex" positioning block f18 is adapted to the shape of the handle, and at the same time improves the adhesion of the film and the handle, avoiding the occurrence of loose parts. The tenth cylinder f19 and the eleventh cylinder f20 cooperate with each other to realize position transformation of the "convex" positioning block f18 in space. When the handle is placed on the film, the "convex" positioning block f18 moves upward and carries the film and the handle; after hot welding is completed, the "convex" positioning block f18 resets, facilitating taking away the handle with completed film covering.

[0068] The cutting assembly comprises a cutter mounting block f22, a cutter linkage cylinder f23 for driving the cutter mounting block f22 to reciprocate along the lateral direction of the film, a body of the cutter linkage cylinder f23 is fixed on the rack, a cutter f5 is arranged on the cutter mounting block f22, and the cutter f5 is arranged obliquely on the cutter mounting block f22. The film pulling assembly and the film positioning assembly fix the film respectively, the cutter linkage cylinder f23 drives the cutter f5 to move laterally along the film to complete cutting of the film. The cutter f5 is arranged obliquely to increase the tangential force of the cutter f5 and improve the cutting efficiency.

[0069] The working principle of the handle automatic film covering device f is as follows: the film is fixed when the film pressing block f9 is close to the film fixing seat f8. The fifth cylinder f6 controls the upper film pulling block f1 and the lower film pulling block f2 (at this time, the two are in an open state) as a whole to move towards the film fixing assembly, and when the end of the film enters between the upper film pulling block f1 and the lower film pulling block f2, the lifting rodless cylinder f4 drives the upper film pulling block f1 to move downwards, and cooperates with the lower film pulling block f2 to clamp the end of the film. Then the seventh cylinder f10 drives the film pressing block f9 to move upwards, and the film pressing block f9 is separated from the film fixing seat f8. The fifth cylinder f6 controls the upper film pulling block f1 and the lower film pulling block f2 (at this time, the two are in an open state) to move reversely as a whole, and the film is pulled forward. At this time, the film is distributed above the handle positioning assembly and the soldering assembly. When the film is pulled to a certain length, the seventh cylinder f10 drives the film pressing block f9 to move downwards to fix the film. The cutter linkage cylinder f23 drives the cutter f5 to move along the transverse direction of the film to complete the cutting of the film. Then the hand or the mechanical hand places the handle on the film and aligns with the product positioning assembly. Next, the soldering block f13 pushes one side of the film to move, and the sixth cylinder f7 drives the upper film pulling block f1 and the lower film pulling block f2 to move with the other side of the film. The two are close to each other, and the upper film pulling block f1 moves upwards (not to fix the film, to avoid excessive deformation of the film during soldering). The soldering seat f24 cooperates with the soldering block f13 to solder, and the scrap cutter f25 cuts off the excess scrap edge to realize that the film is wrapped around the handle. As can be seen from the above, the device can realize efficient and fully automatic handle periphery film covering work without manual operation. At the same time, the film pulling and lamination process has no mechanical friction, and the handle surface has no risk of scratches. The film edge is fixed by heat melting, without the need for glue, which avoids glue stain pollution or chemical corrosion.

Claims

1. A luggage handle automatic assembly machine, comprising a frame and a rotating disc rotatably installed on the frame, characterized in that: The rack is further provided with a plastic part automatic feeding device, a handle automatic feeding device and a latch push feeding device which are distributed outside the rotating disc and arranged in sequence along the circumference of the rotating disc; the rotating disc is provided with a plurality of clamps which are arranged in sequence along the circumference of the rotating disc and are used for clamping plastic parts; the plastic part automatic feeding device is used for automatically transporting plastic parts to the clamps; the handle automatic feeding device is used for automatically transporting handle bodies to the clamps which have clamped plastic parts; and the latch push feeding device is used for automatically transporting latches and assembling the latches.

2. The luggage handle automatic assembly machine according to claim 1, characterized in that: The plastic part automatic feeding device comprises a sorting assembly used for automatically sorting plastic parts and a transfer assembly used for transferring plastic parts from the sorting assembly to the clamps; the sorting assembly comprises a straight-vibration feeder fixedly installed on the rack and a feeding bottom plate installed above the straight-vibration feeder; the feeding bottom plate is fixed with two groups of symmetrically arranged first sorting plates; a first feeding channel which is matched with the plastic parts is arranged between the two groups of first sorting plates; and a material blocking plate is arranged above the first feeding channel; the transfer assembly comprises a receiving block distributed at the discharging end of the first feeding channel, a reciprocating movement mechanism linked with the receiving block and a clamping mechanism used for transferring plastic parts from the receiving block to the clamps; a U-shaped positioning groove is arranged above the receiving block, the opening of the U-shaped positioning groove faces the first feeding channel, the end of the material blocking plate extends above the U-shaped positioning groove; the reciprocating movement mechanism comprises a transmission plate installed below the receiving block; the transmission plate is linked with a first air cylinder; the first air cylinder drives the receiving block to reciprocate along a direction perpendicular to the first feeding channel through the transmission plate; and the end of the feeding bottom plate is fixed with a limiting plate which is parallel to the transmission plate.

3. The luggage handle automatic assembly machine according to claim 2, characterized in that: The clamping mechanism comprises a swing air claw, a first sliding block linked with the swing air claw and a fixed plate; the first sliding block is slidingly matched with a first sliding rail which is laid transversely; the first sliding rail is fixedly installed on the fixed plate; the upper end of the fixed plate is installed with a lifting driving air cylinder; the output end of the lifting driving air cylinder is linked with the first sliding block; the fixed plate is linked with a second sliding block; the second sliding block is slidingly matched with a second sliding rail which is laid vertically; the second sliding rail is fixed on the rack; the rack is installed with a transverse driving air cylinder; the output end of the transverse driving air cylinder is linked with the fixed plate; the swing air claw comprises a body and two groups of air claws linked with the body; the two groups of air claws can simultaneously rotate relative to the body; and the two groups of air claws can approach or separate from each other; each group of air claws is linked with a group of supporting claws; the lower part of the supporting claw is provided with a semi-cylindrical clamping body; when the two groups of supporting claws approach, the two groups of semi-cylindrical clamping bodies form a cylindrical clamping body; and the outer periphery of the semi-cylindrical clamping body is provided with anti-slip lines.

4. The luggage handle automatic assembly machine according to claim 1, characterized in that: The handle automatic feeding device comprises a conveyor, a first mechanical hand mechanism for transferring the handle body from the conveyor to the clamp, two sets of symmetrical second sorting plates arranged above the conveyor, a second feeding channel arranged between the two sets of second sorting plates and matched with the gap below the handle body, a second material blocking piece arranged above the second feeding channel, and a clamp positioning baffle fixed to the conveyor arranged at the discharging end of the second feeding channel, wherein a material taking gap capable of accommodating a group of handle bodies is formed between the clamp positioning baffle and the second material blocking piece.

5. The luggage handle automatic assembly machine according to claim 4, characterized in that: The first mechanical hand mechanism comprises a rotary taking and placing plate, a rotary cylinder linked with the rotary taking and placing plate, and a second fixed plate, both ends of the rotary taking and placing plate are respectively provided with suction cups, the body of the rotary cylinder is linked with a rotary taking and placing arm, the end of the rotary taking and placing arm is linked with a fourth sliding block, the fourth sliding block is slidingly matched with a fourth sliding rail, the fourth sliding rail is fixedly installed on the second fixed plate, the upper end of the second fixed plate is installed with a second lifting driving cylinder, the output end of the second lifting driving cylinder is linked with a second sliding block, the second fixed plate is linked with a second sliding block, the second sliding block is slidingly matched with a fifth sliding rail arranged horizontally, the fifth sliding rail is fixed on a rack, the rack is installed with a second horizontal driving cylinder, the output end of the second horizontal driving cylinder is linked with the second fixed plate.

6. The luggage handle automatic assembly machine according to claim 1, characterized in that: The latch push feeding device comprises a bottom plate, a latch feeding block and a latch guide chuck fixed to the bottom plate, a latch misalignment block is arranged between the latch feeding block and the latch guide chuck, a feeding hole is penetrated through the latch feeding block, the latch misalignment block is linked with a second cylinder installed on the bottom plate, a receiving hole is arranged on the latch misalignment block, a thimble hole is also penetrated through the latch feeding block, the thimble hole and the feeding hole are parallel to each other, a thimble is slidingly arranged at the thimble hole, the thimble is linked with a third cylinder installed on the bottom plate, the second cylinder is used to drive the latch misalignment block to reciprocate between the feeding hole and the thimble hole, the latch guide chuck is provided with a guide pipe positioning hole corresponding to the thimble hole, a latch guide pipe is fixed to the guide pipe positioning hole, the latch guide pipe is hollow inside and both ends are open, an adjusting plate is connected below the bottom plate, the adjusting plate is linked with a third sliding block, the third sliding block is linked with a third sliding rail, the end of the adjusting plate is linked with a fourth cylinder.

7. The luggage handle automatic assembly machine according to claim 6, characterized in that: The latch push feeding device further comprises a handle positioning assembly, the handle positioning assembly comprises a pneumatic rotary clamping cylinder, the pneumatic rotary clamping cylinder comprises a body and a swing arm linked with the body, the end of the swing arm is linked with a connecting rod, the end of the connecting rod away from the swing arm is linked with a rotary downward pressing rod through a linear bearing, the lower end of the rotary downward pressing rod is linked with a downward pressing rubber head.

8. The luggage handle automatic assembly machine according to claim 1, characterized in that: The rack is further provided with a handle automatic film covering device, the handle automatic film covering device comprises a film pulling assembly for pulling the film, a film positioning assembly for cutting and positioning the film, a cutting assembly distributed between the film pulling assembly and the film positioning assembly, the handle automatic film covering device further comprises a handle positioning assembly distributed between the cutting assembly and the film pulling assembly, and a hot welding assembly for hot welding the film, and the rack is further provided with a second mechanical hand mechanism for transferring the assembled handle to the handle positioning assembly.

9. The luggage handle automatic assembly machine according to claim 8, characterized in that: The film pulling assembly comprises upper and lower pulling film blocks oppositely arranged, the lower pulling film block is fixed on a film pulling linkage plate, a lifting rodless cylinder is installed on the film pulling linkage plate, the upper pulling film block is linked with the lifting rodless cylinder, the film pulling linkage plate is linked with a sixth cylinder, the body of the sixth cylinder is linked with a fifth cylinder, the body of the fifth cylinder is fixed on the rack, and the extension stroke directions of the sixth cylinder and the fifth cylinder are parallel to each other; the film positioning assembly comprises a film positioning seat and a film pressing block distributed above the film positioning seat, the film pressing block is linked with a seventh cylinder, the seventh cylinder is used for driving the film pressing block to reciprocate towards the film positioning seat, guide rods are fixed at both ends of the film positioning seat, an upper cylinder mounting plate is fixed above the guide rods, and the body of the seventh cylinder is fixed on the upper cylinder mounting plate; the hot welding assembly comprises a hot block and an eighth cylinder for driving the hot block to move transversely, the body of the eighth cylinder is linked with a ninth cylinder for controlling the hot block to move vertically, and the rack is provided with a first displacement hole corresponding to the hot welding assembly and the film positioning assembly; a hot seat is fixed on the film pulling linkage plate, a reject chute is arranged on the hot seat, a reject knife is arranged in the reject chute, the reject knife is linked with a reject cylinder, and the body of the reject cylinder is linked with the body of the sixth cylinder through a cylinder plate; the handle positioning assembly comprises a "convex" positioning block and a tenth cylinder for driving the "convex" positioning block to move transversely, the body of the tenth cylinder is linked with an eleventh cylinder for controlling the "convex" positioning block to move vertically, and the rack is provided with a second displacement hole corresponding to the "convex" positioning block; the cutting assembly comprises a cutter mounting block and a cutter linkage cylinder for driving the cutter mounting block to reciprocate along the transverse direction of the film, the body of the cutter linkage cylinder is fixed on the rack, a cutter is installed on the cutter mounting block, and the cutter is arranged obliquely on the cutter mounting block.

10. The automatic luggage handle assembling machine according to any one of claims 1 to 9, characterized in that: The clamp comprises a positioning seat and a fixed seat fixed on the rotating disc, the middle part of the positioning seat is provided with two groups of symmetrically distributed insertion columns, the fixed seat is provided with a strip-shaped sliding groove matched with the positioning seat, the periphery of the positioning seat is uniformly provided with a third strip-shaped hole, and the fixed seat is provided with a third positioning hole corresponding to each group of third strip-shaped holes.

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