High efficiency automatic strapping machine

Abstract

The present application relates to a kind of high-efficiency automatic bundling machines, for the intersection of intersecting cross bar and longitudinal rod is tied by U-shaped needle at intersection, including frame, upper driving device, lower driving device and bundling device;Upper driving device, bundling device and lower driving device are respectively arranged in the upper, middle, lower portion of frame;The bundling device includes cross bar conveying channel, cross bar conveying device, bundling head and mounting beam, cross bar conveying channel passes through between cross bar conveying device and bundling head, and a plurality of bundling heads are provided on mounting beam along cross bar conveying channel;The high-efficiency automatic bundling machine of the present application has multiple bundling stations, can realize continuous, efficient bundling operation, while longitudinal rod and cross bar move forward after bundling, new cross bar can be smoothly in place under the action of cross bar lifting device, shorten the waiting time of longitudinal rod and cross bar arrangement, and, double bundling is carried out to longitudinal rod and cross bar by U-shaped needle, and the bundling effect is good.

Description

Technical Field

[0001] This invention belongs to the field of mechanical technology, specifically relating to a high-efficiency automatic strapping machine. Background Technology

[0002] In the construction industry, when manufacturing precast concrete components or interior framing, it is necessary to pre-weave steel mesh or other rod-shaped materials into a grid. Currently, this process is mainly done manually, involving placing the steel bars in a grid pattern and then securing the intersections with wire or fasteners. This method is inefficient, requires significant space, and is labor-intensive and time-consuming. Therefore, it is necessary to develop a highly efficient automatic binding machine capable of rapidly producing grids made of rod-shaped materials. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic strapping machine with multiple processing stations that can efficiently produce meshes made of rod-shaped materials.

[0004] To solve the above-mentioned technical problems, the present invention discloses a high-efficiency automatic strapping machine for strapping the intersection of intersecting horizontal and vertical bars with U-shaped needles, including a frame, an upper drive device, a lower drive device, and a strapping device; the upper drive device, the strapping device, and the lower drive device are respectively located in the upper, middle, and lower parts of the frame;

[0005] The binding device includes a horizontal bar conveying channel, a horizontal bar conveying device, binding heads, and a mounting beam. The horizontal bar conveying channel passes between the horizontal bar conveying device and the binding heads, and several binding heads are arranged along the horizontal bar conveying channel on the mounting beam.

[0006] The binding head includes a pin, a feeding device, an upper binding head, and a lower binding head. The upper binding head has a through-hole machined vertically, and the pin is movably disposed within the through-hole. The sidewall of the upper binding head has a feed inlet connected to the through-hole, used to feed the U-shaped needle tip downwards into the through-hole. The bottom of the upper binding head has an upper groove for accommodating a crossbar, with the lower end of the through-hole located within the upper groove. The top of the lower binding head has a lower groove for accommodating a longitudinal bar, with the intersection of the upper and lower grooves facing the lower end of the through-hole. A pair of U-shaped guide grooves for bending and shaping the U-shaped needle are provided in the lower groove, corresponding to the lower end of the through-hole. The upper driving device drives the pin to move up and down, and the lower driving device drives the lower binding head to move up and down.

[0007] In use, with the vertical bar at the bottom and the horizontal bar at the top, the ejector pin presses the U-shaped pin downwards and slides out of the guide hole. The U-shaped pin crosses the intersection of the vertical bar and the horizontal bar and enters the U-shaped guide groove, causing the two ends of the U-shaped pin to bend within the U-shaped guide groove, thereby fixing the intersection of the vertical bar and the horizontal bar.

[0008] Preferably, before the push pin presses the U-shaped needle downward through the guide hole to bind the intersection of the longitudinal and transverse bars, both the transverse and longitudinal bars enter the mouth of the U-shaped needle.

[0009] Preferably, it also includes a crossbar lifting device, which is located between two adjacent binding heads. The crossbar lifting device includes a lifting cylinder fixed on the mounting beam and a support plate connected to the movable end of the lifting cylinder. One end of the support plate is provided with a lifting block with a first receiving groove at the top, and the lifting block is located directly below the crossbar conveying channel.

[0010] Preferably, the crossbar conveying device includes a crossbar guide sleeve disposed on one side of the mounting beam, and the interior of the crossbar guide sleeve forms one end of the crossbar conveying channel; when loading the crossbar, the crossbar passes through the crossbar guide sleeve and rests against the lifting block.

[0011] Preferably, the feeding device includes a feeding rod for arranging and placing U-shaped needles, with one end of the feeding rod inserted into the feed inlet; the feeding rod is also provided with an elastic device for pushing the U-shaped needles into the feed inlet.

[0012] Preferably, the binding device further includes an upper pressure plate and a lower pressure plate. The upper pressure plate is connected to the ejector pin, thereby controlling the up and down movement of the ejector pin; the lower pressure plate is connected to the lower binding head, thereby controlling the up and down movement of the lower binding head.

[0013] Preferably, it also includes a cover plate with a second receiving groove disposed above the lifting block, the cover plate being fixed on the mounting beam, and the first receiving groove and the second receiving groove forming part of the crossbar conveying channel.

[0014] Preferably, after one binding operation is completed, the lower binding head and the lifting block move down, and the horizontal bar and vertical bar fixed by the U-shaped pin move forward a certain distance and then stop. At the same time as the horizontal bar and vertical bar move forward, the lifting block moves up, and then the new horizontal bar passes through the horizontal bar guide sleeve of the horizontal bar conveying device and stops on the lifting block.

[0015] Preferably, the top of the lower bracket is provided with a secondary lower groove for stopping the crossbar at a position corresponding to the upper groove.

[0016] Preferably, the bottom shape of the ejector pin matches the top shape of the U-shaped pin; when the ejector pin is raised, only one U-shaped pin enters the guide hole at a time.

[0017] The high-efficiency automatic strapping machine of the present invention has multiple strapping stations, enabling continuous and efficient strapping operations. After strapping, the longitudinal and transverse bars move forward while the new transverse bars are smoothly positioned under the action of the transverse bar lifting device, shortening the waiting time for the arrangement of the longitudinal and transverse bars. Furthermore, the U-shaped clamps perform double strapping on the longitudinal and transverse bars, resulting in a good strapping effect. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of a high-efficiency automatic strapping machine.

[0019] Figure 2 for Figure 1 A schematic diagram of the structure of a medium- and high-efficiency automatic strapping machine with its frame concealed.

[0020] Figure 3 for Figure 1 A schematic diagram of the middle binding device.

[0021] Figure 4 for Figure 3 A schematic diagram of the middle binding head (the upper and lower binding heads are shown separately for clarity).

[0022] Figure 5 for Figure 4 A schematic diagram of the structure of the central thimble.

[0023] The labels in the diagram are as follows: 1-Frame, 2-Upper drive unit, 3-Lower drive unit, 4-Binding device, 5-Crossbar conveying channel, 6-Crossbar conveying device, 601-Crossbar guide sleeve, 7-Binding head, 710-Ejector pin, 720-Feeding device, 721-Feeding rod, 730-Upper binding head, 731-Guide hole, 732-Feed inlet, 733-Upper groove, 740-Lower binding head, 741-Lower groove, 742-U-shaped guide groove, 743-Secondary lower groove, 750-Upper pressure plate, 760-Lower pressure plate, 8-Mounting beam, 9-Crossbar, 10-Vertical bar, 11-U-shaped pin, 12-Crossbar lifting device, 1201-Lifting cylinder, 1202-Plate, 1203-Lifting block, 1204-Cover plate. Detailed Implementation

[0024] The present invention will be further described in detail below through embodiments, so that those skilled in the art can implement it based on the description.

[0025] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0026] like Figure 1-5 As shown, a high-efficiency automatic strapping machine is used to strap the intersection of intersecting horizontal bars 9 and vertical bars 10 with U-shaped needles 11. It includes a frame 1, an upper drive device 2, a lower drive device 3, and a strapping device 4. The upper drive device, the strapping device, and the lower drive device are respectively located at the upper, middle, and lower parts of the frame.

[0027] like Figure 1As shown, the binding device 4 includes a crossbar conveying channel 5, a crossbar conveying device 6, binding heads 7, and a mounting beam 8. The crossbar conveying channel 5 passes between the crossbar conveying device 6 and the binding heads 7. Several binding heads 7 are arranged along the crossbar conveying channel 5 on the mounting beam 8. The length of the mounting beam and the number of binding heads are set according to the required grid width and the number of vertical bars 10.

[0028] like Figure 4 As shown, the binding head 7 includes a pin 710, a feeding device 720, an upper binding head 730, and a lower binding head 740. The upper binding head 730 has a through guide hole 731 machined vertically, and the pin 710 is movably disposed within the guide hole 731. The sidewall of the upper binding head 730 has a feed inlet 732 machined horizontally, communicating with the guide hole, for feeding the U-shaped needle 11 downwards into the guide hole. The bottom of the upper binding head 730 has an upper groove 733 for accommodating the crossbar 9, and the lower end of the guide hole 731 is located within the upper groove. Inside 733; the top of the lower clamping head 740 is provided with a lower groove 741 for accommodating the longitudinal rod 10, and the intersection of the upper groove 733 and the lower groove 741 is directly opposite the lower end of the guide hole 731; inside the lower groove 741, corresponding to the lower end of the guide hole, there is a pair of U-shaped guide grooves 742 for bending and shaping the U-shaped needle; the upper driving device 2 is used to drive the pin 710 to move up and down, and the lower driving device 3 is used to drive the lower clamping head 740 to move up and down; in this embodiment, the upper groove and the lower groove are set at a 90° angle.

[0029] In use, the vertical rod 10 is at the bottom and the horizontal rod 9 is at the top. The ejector pin 710 presses the U-shaped needle 11 down and slides out of the guide hole 731. The U-shaped needle 11 crosses the intersection of the vertical rod 10 and the horizontal rod 9 and enters the U-shaped guide groove 742, so that the two ends of the U-shaped needle 11 bend in the U-shaped guide groove 742, thereby fixing the intersection of the vertical rod and the horizontal rod.

[0030] Before the pin 710 presses the U-shaped needle 11 downward through the guide hole to bind the intersection of the longitudinal and transverse bars, both the transverse bar 9 and the longitudinal bar 10 enter the opening of the U-shaped needle 11, so that the U-shaped needle can be bent and hold the intersection of the longitudinal and transverse bars tightly to form a fixation.

[0031] like Figure 3 As shown, it also includes a crossbar lifting device 12, which is located between two adjacent binding heads. The crossbar lifting device includes a lifting cylinder 1201 fixed on the mounting beam and a support plate 1202 connected to the movable end of the lifting cylinder. One end of the support plate 1202 is provided with a lifting block 1203 with a first receiving groove at the top. The lifting block 1203 is located directly below the crossbar conveying channel 5.

[0032] It also includes a cover plate 1204 with a second receiving groove located above the lifting block 1203. The cover plate is fixed on the mounting beam, and the first receiving groove and the second receiving groove form a crossbar conveying channel.

[0033] After one binding operation is completed, the lower binding head 740 and the lifting block 1203 move downwards. The crossbar and longitudinal bar, which are fixed by the U-shaped pin 11, move forward a certain distance and then stop. At the same time as the crossbar and longitudinal bar move forward, the lifting block 1203 moves upwards. Then, the new crossbar passes through the crossbar guide sleeve 601 of the crossbar conveying device and stops on the lifting block. The significance of this is that, as the longitudinal bar and crossbar move forward after one binding action is completed, the new crossbar can be smoothly positioned under the action of the crossbar lifting device. If the lifting block is not set, when feeding a new crossbar, the bound longitudinal bar and crossbar must first be moved forward, and the lower binding head must be moved upwards before the new crossbar can be fed. The setting of the lifting block effectively shortens the waiting time for the arrangement of the longitudinal bar and crossbar.

[0034] The crossbar conveying device includes a crossbar guide sleeve 601 located on one side of the mounting beam, and the inside of the crossbar guide sleeve forms one end of the crossbar conveying channel; when loading the crossbar, the crossbar passes through the crossbar guide sleeve and rests against the lifting block.

[0035] The feeding device includes a feeding rod 721 for arranging and placing U-shaped needles, one end of which is inserted into the feed inlet 732; the feeding rod 721 is also provided with an elastic device (not shown in the figure) for pushing the U-shaped needles 11 into the feed inlet 732.

[0036] like Figure 2 As shown, the binding device 4 also includes an upper pressure plate 750 and a lower pressure plate 760. The upper pressure plate 750 is connected to the ejector pin 710, thereby controlling the ejector pin 710 to move up and down. The lower pressure plate 760 is connected to the lower binding head 740, thereby controlling the lower binding head 740 to move up and down.

[0037] The top of the lower bracket 740 is provided with a secondary lower groove 743 for stopping the crossbar at a position corresponding to the upper groove.

[0038] like Figure 5 As shown, the bottom shape of the ejector pin 710 is adapted to the top shape of the U-shaped pin 11; when the ejector pin 710 is lifted, only one U-shaped pin 11 enters the guide hole 731 at a time.

[0039] Binding action: A row of U-shaped needles 11 is placed on each feeding rod 721. Under the action of the elastic device, each time the ejector pin 710 is raised, one U-shaped needle 11 enters the guide hole 731. When the ejector pin 710 is pressed down, the U-shaped needle 11 is pushed out of the guide hole 731, and the two ends of the U-shaped needle enter a U-shaped guide groove 742. Under the action of the ejector pin 710 and the U-shaped guide groove 742, the ends are bent into a U-shape, and the two ends respectively hug the longitudinal rod 10, thereby fixing the two steel bars. During binding, the lower drive device 3 drives the lower binding head 740 to move upward to press the longitudinal rod 10 and the cross rod 9 together. Then the upper drive device 2 drives the ejector pin 710 to move downward. After binding is completed, a new cross rod is fed, and the next binding operation is performed.

[0040] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and embodiments shown and described herein.

Claims

1. A high-efficiency automatic strapping machine, used to strap together the intersections of intersecting horizontal and vertical bars using U-shaped needles, characterized in that, It includes a frame, an upper drive unit, a lower drive unit, and a strapping device; the upper drive unit, the strapping device, and the lower drive unit are respectively located at the upper, middle, and lower parts of the frame; The binding device includes a horizontal bar conveying channel, a horizontal bar conveying device, binding heads, and a mounting beam. The horizontal bar conveying channel passes between the horizontal bar conveying device and the binding heads, and several binding heads are arranged along the horizontal bar conveying channel on the mounting beam. The binding head includes a pin, a feeding device, an upper binding head, and a lower binding head. The upper binding head has a through-hole machined vertically, and the pin is movably positioned within the through-hole. The sidewall of the upper binding head has a feed inlet connected to the guide hole, used to feed the U-shaped needle tip downwards into the guide hole. The bottom of the upper binding head has an upper groove for accommodating a crossbar, with the lower end of the guide hole located within the upper groove. The top of the lower binding head has a lower groove for accommodating a vertical bar, with the intersection of the upper and lower grooves facing the lower end of the guide hole. A pair of U-shaped guide grooves for bending and shaping the U-shaped needle are provided in the lower groove, corresponding to the lower end of the guide hole. The upper driving device drives the pin to move up and down, and the lower driving device drives the lower binding head to move up and down. The feeding device includes a feeding rod for arranging and placing the U-shaped needles, with one end inserted into the feed inlet. The feeding rod also has an elastic device for pushing the U-shaped needles into the feed inlet. When in use, the vertical bar is at the bottom and the horizontal bar is at the top. The ejector pin presses the U-shaped pin downward and slides out of the guide hole. The U-shaped pin crosses the intersection of the vertical bar and the horizontal bar and enters the U-shaped guide groove, causing the two ends of the U-shaped pin to bend in the U-shaped guide groove, thereby fixing the intersection of the vertical bar and the horizontal bar. It also includes a crossbar lifting device, which is located between two adjacent binding heads. The crossbar lifting device includes a lifting cylinder fixed on the mounting beam and a support plate connected to the movable end of the lifting cylinder. One end of the support plate is provided with a lifting block with a first receiving groove at the top, and the lifting block is located directly below the crossbar conveying channel.

2. The high-efficiency automatic strapping machine according to claim 1, characterized in that, Before the U-shaped needle slides down through the guide hole and is used to bind the intersection of the longitudinal and transverse rods, both the transverse and longitudinal rods enter the opening of the U-shaped needle.

3. The high-efficiency automatic strapping machine according to claim 1, characterized in that, The crossbar conveying device includes a crossbar guide sleeve located on one side of the mounting beam, and the inside of the crossbar guide sleeve forms one end of the crossbar conveying channel; when loading the crossbar, the crossbar passes through the crossbar guide sleeve and rests against the lifting block.

4. The high-efficiency automatic strapping machine according to claim 1, characterized in that, The binding device also includes an upper pressure plate and a lower pressure plate. The upper pressure plate is connected to the ejector pin, thereby controlling the up and down movement of the ejector pin; the lower pressure plate is connected to the lower binding head, thereby controlling the up and down movement of the lower binding head.

5. The high-efficiency automatic strapping machine according to claim 3, characterized in that, It also includes a cover plate with a second receiving groove located above the lifting block, the cover plate being fixed to the mounting beam, and the crossbar conveying channel consisting of the first receiving groove and the second receiving groove.

6. The high-efficiency automatic strapping machine according to claim 5, characterized in that, After one binding operation is completed, the lower binding head and the lifting block move down. The horizontal bar and vertical bar, which are fixed by the U-shaped pin, move forward a certain distance and then stop. At the same time as the horizontal bar and vertical bar move forward, the lifting block moves up. Then the new horizontal bar passes through the horizontal bar guide sleeve of the horizontal bar conveying device and stops on the lifting block.

7. The high-efficiency automatic strapping machine according to claim 1, characterized in that, The top of the lower bracket is provided with a secondary lower groove corresponding to the upper groove for stopping the crossbar.

8. The high-efficiency automatic strapping machine according to claim 1, characterized in that, The bottom shape of the ejector pin is adapted to the top shape of the U-shaped pin; when the ejector pin is raised, only one U-shaped pin enters the guide hole at a time.

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