A profile screw riveting machine

Abstract

The present invention provides a profile screw riveting machine, comprising a frame, characterized in that: a plurality of movable chains are arranged in parallel on the frame for conveying profiles, the frame has two layers, the top layer is provided with a plurality of screw unloading mechanisms, the bottom layer is provided with a loading mechanism, a plurality of screw riveting mechanisms, a unloading mechanism and a positioning mechanism from right to left, the positioning mechanism is arranged below the screw riveting mechanism, and the loading mechanism has the same structure as the unloading mechanism; through the cooperation of several mechanisms and continuous operation, the present invention has high processing efficiency, is not prone to processing deviation, has a compact structure, occupies a small area, and unqualified screws are directly pushed out from a material receiving device, thereby avoiding the production of unqualified products.

Description

Technical Field

[0001] The invention relates to the technical field of riveting, in particular to a profile screw riveting machine. Background Art

[0002] Many screws with internal threads need to be fixed on the door and window profiles to facilitate the installation of other door and window components. Because the wall of the profile is thin, welding will affect the aesthetics. Now the screws are generally fixed by riveting. The current method is to rivet the screws one by one, which is laborious and inefficient. It cannot meet the requirements of large-scale production. Moreover, the current production lacks automation and uses simple equipment or direct manual processing, which greatly increases the labor intensity of workers. With the increasing cost of labor today, how to reduce labor is the way for many companies to survive. Summary of the invention

[0003] In view of the above problems, the present invention provides a profile screw riveting machine with high processing efficiency, not prone to deviation, compact equipment structure, small footprint, and unqualified screws are directly pushed out from the material receiving device to avoid the production of defective products.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A profile screw riveting machine, comprising a frame, characterized in that: a plurality of movable chains are arranged in parallel on the frame for conveying profiles, the frame has two layers, a plurality of screw unloading mechanisms are arranged on the top layer, and a loading mechanism, a plurality of screw riveting mechanisms, an unloading mechanism and a positioning mechanism are arranged on the bottom layer from right to left, the positioning mechanism is arranged below the screw riveting mechanism, and the loading mechanism has the same structure as the unloading mechanism;

[0006] Wherein, the screw riveting mechanism comprises a riveting frame, a sliding seat is slidably connected to the riveting frame in a vertical direction, the sliding seat is driven to move up and down by a first lifting motor installed on the riveting frame, a servo motor is fixed on the top of the sliding seat, and the working end of the servo motor is connected to a working part through a connecting rod, a lower material pipe is also fixedly connected to the sliding seat for conveying screws, a material discharge device is provided below the lower material pipe, the lower material pipe is arranged parallel to the working part, and a lifting platform is also slidably connected to the sliding seat in a vertical direction, the lifting platform is driven by a second lifting motor installed on the sliding seat, and a material receiving device is hinged on the lifting platform, and the material receiving device is driven to rotate by a rotating motor installed on the lifting platform, so that the material receiving device switches its position between below the material discharge device and below the working part;

[0007] The screw feeding mechanism comprises a screw feeding frame, a roller driven by a roller motor is installed on the screw feeding frame, the roller has openings at both ends, the openings at both ends of the roller extend in the axial direction of the roller so that the bottom of its inner cavity can accommodate screws, a plurality of grooves are arranged on the inner side of the roller, and a screw groove with an opening facing upward is also installed on the screw feeding frame, the screw groove is inclined with the left side lower and the right side higher, the right end of the screw groove extends into the middle part of the inner cavity of the roller, and the left end thereof is connected to the feeding pipe, a vibration motor is also installed on the screw feeding frame, the vibration motor is connected to the screw groove to move the screw toward the feeding pipe, and a roller brush driven by a brush motor to rotate is also installed on the screw feeding frame, the roller brush is close to the upper end of the screw groove to brush out the screws that have not fallen into the screw groove smoothly, and a return trough is provided below the roller brush to return the brushed screws to the inner cavity of the roller.

[0008] Preferably, the discharge device includes a first discharge cylinder, a second discharge cylinder and a feeding table. The feeding table is driven by the feeding cylinder to move horizontally, and is used to deliver the screws from the feeding table to the receiving device. The first discharge cylinder and the second discharge cylinder are used in conjunction so that only one screw can be put down at a time.

[0009] Preferably, a bearing seat is fixed on the sliding seat, and the connecting rod is installed on the bearing seat through a bearing.

[0010] Preferably, the material receiving device is also provided with a discharge cylinder for pushing out unqualified screws.

[0011] Preferably, a switching motor is also installed on the screw feeding frame, and also includes another feeding pipe and a feed guide, the feed guide is connected to the outlet end of the screw groove, and the working end of the switching motor is connected to the feed guide and drives it to switch between the two feeding pipes.

[0012] Preferably, the drum is tilted, with the left side lower than the right side, and a baffle is provided at the opening on the left side of the drum to prevent the screws from falling out of the drum.

[0013] Preferably, a feed hopper is also installed on the screw unloading machine frame, and the feed hopper is located on the right side of the drum.

[0014] Preferably, a funnel is provided above the screw slot to guide the fallen screws to the top of the screw slot.

[0015] Preferably, the feeding mechanism includes a feeding frame installed along the width direction of the frame, a grabbing seat is slidably connected to the top of the feeding frame, a grabbing frame is slidably connected to the grabbing seat along the length direction of the frame, a grabbing lifting cylinder is installed on the grabbing frame along the height direction of the frame, and a grabbing cylinder is installed at the end of the grabbing lifting cylinder for grabbing profiles.

[0016] Preferably, a plurality of unloading platforms are installed on the top of the chain for placing profiles.

[0017] Beneficial effects of the present invention:

[0018] The present invention adopts a material receiving device to continuously rotate the screws from the material discharging device to the working part for processing, with high processing efficiency, less prone to deviation, compact equipment structure, small footprint, and unqualified screws are directly pushed out from the material receiving device to avoid the production of unqualified products. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a stereogram of the present invention;

[0020] Figure 2 It is a front view of the present invention;

[0021] Figure 3 It is a three-dimensional view of the screw riveting mechanism 5 at one angle;

[0022] Figure 4 is a three-dimensional diagram of the screw riveting mechanism 5 from another angle;

[0023] Figure 5 is a perspective view of the discharge device 58;

[0024] Figure 6 is a three-dimensional diagram of the screw feeding mechanism 4;

[0025] Figure 7 It is a left view of the screw feeding mechanism 4;

[0026] Figure 8 is a three-dimensional view of the roller 43 of the screw feeding mechanism 4;

[0027] Fig. 9 is a three-dimensional diagram of the screw feeding mechanism 4 without the roller 43;

[0028] Fig.10 yes Figure 1 A magnified image of point A;

[0029] Fig.11 yes Figure 2 Enlarged view of point B. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is described below in conjunction with the accompanying drawings and embodiments.

[0031] like Figures 1 to 11As shown, a profile screw riveting machine described in the present invention comprises a frame 1, on which a plurality of movable chains 11 are arranged in parallel for conveying profiles, the frame has two layers, the top layer is provided with a plurality of screw unloading mechanisms 4, and the bottom layer is provided with a loading mechanism 2, a plurality of screw riveting mechanisms 5, a unloading mechanism 3 and a positioning mechanism 6 from right to left, the positioning mechanism 6 is arranged below the screw riveting mechanism 5, and the loading mechanism 2 has the same structure as the unloading mechanism 3; wherein, the screw riveting mechanism 5 comprises a riveting frame 51, and a sliding seat 52 is slidably connected to the riveting frame 51 in a vertical direction, and the sliding seat 52 is driven to move up and down by a first lifting motor 53 installed on the riveting frame 51 ... A servo motor 54 is fixed on the top of the seat 52, and the working end of the servo motor 54 is connected to a working part 56 through a connecting rod 55. A feeding pipe 57 is also fixedly connected to the sliding seat 52 for conveying screws. The screws mentioned here refer to screws with inner and outer sleeves. The inner sleeve is hollow and has an internal thread. When in use, the bolt end of the working part 56 is screwed into the inner sleeve of the screw and stretched to pull the inner and outer sleeves of the screw apart. The inner sleeve stretches the outer sleeve outward, thereby achieving the purpose of riveting and fixing. A feeding device 58 is provided below the feeding pipe 57. The feeding pipe 57 is arranged parallel to the working part 56. A lifting platform 59 is also slidably connected to the sliding seat 52 in the vertical direction. The lifting platform is driven by a second lifting motor 510 installed on the sliding seat 52. A material receiving device 511 is hinged on the lifting platform. The material receiving device 511 is driven to rotate by a rotating motor 512 installed on the lifting platform 59, so that the material receiving device 511 switches between the position below the discharge device 58 and the position below the working part 56; the screw unloading mechanism 4 includes a screw unloading frame 41, and a roller 43 driven by a roller motor 42 is installed on the screw unloading frame 41. The roller 43 has openings at both ends. The openings at both ends of the roller 43 extend toward the axial direction of the roller 43 so that the bottom of its inner cavity can accommodate screws. The inner side of the roller 43 is provided with a plurality of grooves 44 A screw slot 45 with an opening facing upward is also installed on the screw feeding frame 41. The screw slot 45 is tilted with the left side lower and the right side higher. The right end of the screw slot 45 extends into the middle of the inner cavity of the roller 43, and the left end thereof is connected to the feeding tube 57. A vibration motor 46 is also installed on the screw feeding frame 41. The vibration motor 46 is connected to the screw slot 45 to allow the screw to move toward the feeding tube 57. A roller brush 48 driven to rotate by a brush motor 47 is also installed on the screw feeding frame 41. The roller brush 48 is close to the upper end of the screw slot 45 to brush out the screws that have not fallen into the screw slot 45 smoothly. A return trough 49 is provided below the roller brush 48 to return the brushed screws to the inner cavity of the roller 43.

[0032] Specifically, the discharge device 58 includes a first discharge cylinder 581, a second discharge cylinder 582 and a feeding table 583. The feeding table 583 is driven by a feeding cylinder 584 to move horizontally to deliver the screws from the feeding table 583 to the receiving device 511. The first discharge cylinder 581 and the second discharge cylinder 582 are used in conjunction so that only one screw can be put down at a time, which can prevent the screw from getting stuck at the discharge port and allow the screw to come down smoothly.

[0033] Specifically, a bearing seat 513 is fixed on the sliding seat 52, and the connecting rod 55 is installed on the bearing seat 513 through a bearing, which can ensure the straightness of the connecting rod 55 and improve the processing accuracy of the equipment.

[0034] Specifically, the material receiving device 511 is also provided with a discharge cylinder 514 for pushing out unqualified screws, automatically screening out unqualified products, and ensuring the quality of processing.

[0035] Specifically, a switching motor 410 is also installed on the screw feeding machine frame 41, and also includes another feeding pipe 57 and a feed guide 411. The feed guide 411 is connected to the outlet end of the screw groove 45. The working end of the switching motor 410 is connected to the feed guide 411 and drives it to switch between the two feeding pipes 57. During the switching process of the feed guide 411, the discharge port of the feed guide 411 is always aligned with the feed inlet of the two feeding pipes 57.

[0036] Specifically, the roller 43 is tilted, with the left side lower than the right side. A baffle 412 is provided at the opening on the left side of the roller 43 to prevent the screws from falling out of the roller. The tilted setting allows the screws to be concentrated in one position, making it easier for the screws to enter the groove 44 and be transported upward.

[0037] Specifically, a feed hopper 413 is also installed on the screw unloading machine frame 41, and the feed hopper 413 is located on the right side of the roller 43, which is convenient for feeding.

[0038] Specifically, a funnel 414 is provided above the screw slot 45 to guide the fallen screws to the top of the screw slot 45 , thereby increasing the probability of the screws entering the screw slot 45 .

[0039] Specifically, the feeding mechanism 2 includes a feeding frame 21 installed along the width direction of the frame 1, and a grabbing seat 22 is slidably connected to the top of the feeding frame 21, and a grabbing frame 23 is slidably connected to the grabbing seat 22 along the length direction of the frame 1, and the grabbing frame 23 is installed with a grabbing lifting cylinder 24 along the height direction of the frame 1, and a grabbing cylinder 25 is installed at the working end of the grabbing lifting cylinder 24 for grabbing profiles, and a first feeding motor 26 is installed on the feeding frame 21, and the working end of the first feeding motor 26 drives a thread rod to rotate, and a matching nut is provided on the grabbing seat 22, and the first feeding motor 26 drives the grabbing seat 22 to move. Similarly, a second feeding motor 27 is installed on the grabbing seat 22 to drive the grabbing frame 23 to move.

[0040] Specifically, a plurality of unloading tables 12 are installed on the top of the chain 11 for placing profiles, wherein a motor for driving the chain 11 to move is installed on the frame 1, which is not described in detail here.

[0041] Specifically, the positioning mechanism 6 includes two positioning lifting cylinders 61, and a positioning column 62 is respectively provided on the outer side of the two positioning lifting cylinders 61. The two positioning columns 62 are oppositely provided with a pair of positioning grabbing cylinder claws 63. The positioning grabbing cylinder claws 63 are rotatable. The positioning grabbing cylinder claws 63 are driven by a rotating motor 64 through a belt. When the positioning lifting cylinder 61 is raised, the profile can be pushed to the position of the positioning grabbing cylinder claws 63. When the positioning lifting cylinder 61 is lowered, the profile can be placed on the position of the unloading table 12. After the positioning grabbing cylinder claws 63 grab the profile, the rotating motor 64 can drive it to rotate, thereby driving the profile to rotate.

[0042] When the present invention is working, screws are poured in through the feed hopper 413, the drum motor 42 drives the drum 43 to rotate, the screws fall into the groove 44 at the lower part of the drum 43 and are transported upwards, fall down at the highest point of the drum 43, pass through the funnel 414, and fall to the top of the screw groove 45, so that the screws whose falling direction is just aligned with the screw groove 45 are stuck in the screw groove 45, and the drum brush 48 rotates to brush out the screws that have not fallen into the screw groove 45, and the brushed screws fall into the inner cavity of the drum 43 through the return trough 49, and the vibration motor 46 drives the screw groove 45 to vibrate, so that the screws are transported to the discharge end of the screw groove 45, and the screws fall into the discharge pipe 57 again. When the screws in the discharge pipe 57 are full, the switching motor 410 works, the feed guide 411 is pushed and connected to another discharge pipe 57, and the screws in the screw groove 45 will fall into another discharge pipe 57, and the two discharge pipes 57 are fed alternately, so as to avoid the problem of untimely feeding of screws. The profile is placed on the conveyor belt of the frame 1. When the profile reaches the specified position, the first feeding motor 26 and the second feeding motor 27 work together, so that the grabbing cylinder 25 is located above the profile, the grabbing lifting cylinder 24 descends, the grabbing cylinder 25 grabs the profile and places it on the discharge table 12 of the chain 11, the positioning lifting cylinder 61 rises and lifts the profile to the position of the positioning grabbing cylinder claw 63, the positioning grabbing cylinder claw 63 grabs the profile, and the screw is discharged into the feeding table 583 through the discharge pipe 57, the receiving device 511 rotates to the bottom of the discharge device 58, and the feeding cylinder 584 pushes the screw into the receiving device 511, and the rotating motor 512 rotates , driving the material receiving device 511 to rotate to the bottom of the working part 56, and the material receiving device 511 has a cavity for accommodating screws and preventing the screws from rotating. At this time, the bolt end of the working part 56 is screwed into the inner sleeve of the screw to take the material, and the working part 56 moves to the hole of the profile to perform riveting operation. After the riveting is successful, the bolt end of the working part 56 is screwed out, and the work is repeated. When the holes on one side of the profile are processed, the positioning rotation motor 64 rotates 90° and changes to another side for processing. When the sides of the profile are processed, the positioning lifting cylinder 61 descends to place the profile on the discharge table 12, and the chain 11 brings the profile to the position of the unloading mechanism 3 for unloading.

[0043] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, which all belong to the protection scope of the present invention.

Claims

1. A profile screw riveting machine, comprising a frame, characterized in that: The frame is provided with a plurality of movable chains in parallel for conveying profiles. The frame has two layers, the top layer is provided with a plurality of screw unloading mechanisms, and the bottom layer is provided with a loading mechanism, a plurality of screw riveting mechanisms, an unloading mechanism and a positioning mechanism from right to left. The positioning mechanism is provided below the screw riveting mechanism, and the loading mechanism has the same structure as the unloading mechanism. Wherein, the screw riveting mechanism comprises a riveting frame, a sliding seat is slidably connected to the riveting frame in a vertical direction, the sliding seat is driven to move up and down by a first lifting motor installed on the riveting frame, a servo motor is fixed on the top of the sliding seat, and the working end of the servo motor is connected to a working part through a connecting rod, a lower material pipe is also fixedly connected to the sliding seat for conveying screws, a material discharge device is provided below the lower material pipe, the lower material pipe is arranged parallel to the working part, and a lifting platform is also slidably connected to the sliding seat in a vertical direction, the lifting platform is driven by a second lifting motor installed on the sliding seat, and a material receiving device is hinged on the lifting platform, and the material receiving device is driven to rotate by a rotating motor installed on the lifting platform, so that the material receiving device switches its position between below the material discharge device and below the working part; The screw feeding mechanism comprises a screw feeding frame, a roller driven by a roller motor is installed on the screw feeding frame, the roller has openings at both ends, the openings at both ends of the roller extend in the axial direction of the roller so that the bottom of its inner cavity can accommodate screws, a plurality of grooves are arranged on the inner side of the roller, and a screw groove with an opening facing upward is also installed on the screw feeding frame, the screw groove is tilted with the left side lower and the right side higher, the right end of the screw groove extends into the middle of the inner cavity of the roller, and the left end thereof is connected to the feeding pipe, a vibration motor is also installed on the screw feeding frame, the vibration motor is connected to the screw groove to move the screw toward the feeding pipe, and the screw feeding frame A roller brush driven by a brush motor is also installed on the material frame. The roller brush is close to the upper end of the screw groove to brush out the screws that have not fallen into the screw groove smoothly. A return trough is provided under the roller brush to return the brushed screws to the inner cavity of the roller. The discharge device includes a first discharge cylinder, a second discharge cylinder and a feeding table. The feeding table is driven by the feeding cylinder to move horizontally, and is used to send the screws from the feeding table to the material receiving device. The first discharge cylinder and the second discharge cylinder are used in combination so that only one screw can be put down at a time. A bearing seat is fixed on the sliding seat, and the connecting rod is installed on the bearing seat through a bearing.

2. A profile screw riveting machine according to claim 1, characterized in that: The material receiving device is also provided with a discharge cylinder for pushing out unqualified screws.

3. A profile screw riveting machine according to claim 1, characterized in that: The screw feeding machine frame is also equipped with a switching motor, and also includes another feeding pipe and a feed guide, wherein the feed guide is connected to the outlet end of the screw groove, and the working end of the switching motor is connected to the feed guide and drives it to switch between the two feeding pipes.

4. A profile screw riveting machine according to claim 1, characterized in that: The drum is tilted, with the left side lower than the right side, and a baffle is provided at the opening on the left side of the drum to prevent the screws from falling out of the drum.

5. The profile screw riveting machine according to claim 1, characterized in that: A feed hopper is also installed on the screw unloading machine frame, and the feed hopper is located on the right side of the drum.

6. A profile screw riveting machine according to claim 1, characterized in that: A funnel is also arranged above the screw groove to guide the fallen screws to the top of the screw groove.

7. The profile screw riveting machine according to claim 1, characterized in that: The feeding mechanism includes a feeding frame installed along the width direction of the frame, a grabbing seat is slidably connected to the top of the feeding frame, a grabbing frame is slidably connected to the grabbing seat along the length direction of the frame, a grabbing lifting cylinder is installed on the grabbing frame along the height direction of the frame, and a grabbing cylinder is installed at the end of the grabbing lifting cylinder for grabbing profiles.

8. The profile screw riveting machine according to claim 1, characterized in that: A plurality of unloading platforms are installed on the top of the chain for placing profiles.

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