A steel bar bundling machine

Abstract

A steel bar bundling machine includes a machine shell, a wire feeding mechanism, a braking mechanism, a wire winding mechanism disposed within the machine shell, and a forming plate and a guide disposed at the front end of the machine shell. The forming plate and the guide are oppositely arranged. A wire guiding groove is provided on the forming plate. A wire splitting step is provided at the bottom of the wire guiding groove. One side at the lower end of the wire splitting step is a forming groove, and one side at the upper end of the wire splitting step is a wire guiding groove. Compared with the prior art, the bundling machine of the present invention divides the wire guiding groove into a forming groove and a wire guiding groove with a depth difference by providing a wire splitting step at the bottom of the wire guiding groove on the forming plate, which can avoid the problems of wire feeding failure and poor forming effect caused by interference during the wire forming process.

Description

Technical Field

[0001] The present invention relates to the field of bundling machines, and in particular to a steel bar bundling machine. Background Art

[0002] Chinese Patent "CN201420022567.4" discloses a steel bar bundling machine. Among them, a wire guiding nozzle and a wire outlet block are installed on the wire outlet plate of the steel bar bundling machine. The inside of the wire guiding nozzle and the wire outlet block is hollow to form a wire outlet channel for the steel wire to pass through. Tungsten steel columns are installed on the wire outlet channel, and a tungsten steel sleeve is provided on the wire guiding nozzle. During use, under the action of the tungsten steel sleeve and the tungsten steel columns, it is guided in a coiled and bent manner to finally form a steel wire loop. See Figure 1 , the wire outlet channel is a single groove structure. When guiding multiple coils of iron wire, the multiple coils of iron wire are extremely prone to interference, which easily leads to wire outlet failure or poor loop forming effect of the iron wire, and ultimately reduces the working effect of the steel bar bundling machine.

[0003] Chinese Patent "CN201611109727.9" discloses an integrated wire outlet and wire guiding mechanism and a steel bar bundling machine. Among them, the integrated wire outlet and wire guiding mechanism includes a coiling and wire outlet part and a wire guiding part. A convex platform is provided on the coiling and wire outlet part. The arc-shaped wall of the convex platform and the surface area of the coiling and wire outlet part below the convex platform form a guiding part for guiding the movement of the steel wire. During use, when the iron wire enters the wire guiding part from the coiling and wire outlet part, the iron wire moves along the arc-shaped wall (guiding part) of the convex platform to complete the coiling of the steel wire. In the above structure, when guiding multiple coils of iron wire, the iron wire on the arc-shaped wall of the convex platform is prone to interference, which easily causes the iron wire to get stuck in the guiding part, resulting in wire feeding failure, or interference between multiple coils of iron wire, ultimately reducing the circular forming effect of the iron wire. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a steel bar bundling machine with a simple wire guiding mechanism structure that avoids interference of iron wire during the loop forming process.

[0005] To achieve the above object, the technical solution of the present invention is as follows.

[0006] A steel bar bundling machine includes a machine shell, a wire feeding mechanism, a braking mechanism, a wire winding mechanism provided in the machine shell, and a forming plate and a guide provided at the front end of the machine shell. The forming plate and the guide are oppositely arranged. It is characterized in that: a wire guiding groove is provided on the forming plate, a wire splitting step is provided at the bottom of the wire guiding groove, a forming groove is on one side at the lower end of the wire splitting step, and a wire guiding groove is on one side at the upper end of the wire splitting step.

[0007] Further, a guiding groove is provided on the guide, and the guiding groove is opposite to the wire guiding groove.

[0008] Further, two ends of the wire guiding groove are respectively a first wire inlet end and a first wire outlet end, a guiding groove is arranged at the bottom of the wire guiding groove, and a side wall of the guiding groove close to the first wire outlet end inclines towards the looping groove.

[0009] Further, two ends of the wire guiding groove are respectively a first wire inlet end and a first wire outlet end, a first guiding surface is arranged at a position on the side of the wire guiding groove close to the wire winding mechanism and close to the first wire inlet end, and the first guiding surface inclines towards the looping groove.

[0010] Further, two ends of the looping groove are respectively a second wire inlet end and a second wire outlet end, a wire supporting convex block is arranged on a side wall of the wire guiding groove, and the wire supporting convex block is arranged on the side close to the second wire inlet end and on the side of the looping groove.

[0011] Further, a side surface of the wire supporting convex block close to the wire guiding groove is a second guiding surface, and the second guiding surface inclines towards the wire guiding groove.

[0012] Further, a groove width of the looping groove is less than or equal to a groove width of the wire guiding groove.

[0013] Further, a ratio of the groove width of the looping groove to the groove width of the wire guiding groove is 1:5 to 1:1.

[0014] Further, the looping plate comprises a first looping plate and a second looping plate;

[0015] The looping groove is arranged on the first looping plate, the wire guiding groove is arranged on the second looping plate, a depth of the wire guiding groove is less than a depth of the looping groove, and after the first looping plate and the second looping plate are buckled, a wire splitting step is formed between a bottom wall of the wire guiding groove and the looping groove.

[0016] Further, the looping plate comprises a first looping plate and a second looping plate, the wire splitting step is arranged on the first looping plate, and after the first looping plate and the second looping plate are buckled, a wire guiding groove is formed between the first looping plate and the second looping plate.

[0017] A first wire inlet guiding plate and a second wire inlet guiding plate are arranged on the looping plate, both the first wire inlet guiding plate and the second wire inlet guiding plate incline outwards along the wire guiding groove, and a guiding groove is formed between the first wire inlet guiding plate and the second wire inlet guiding plate and is communicated with the wire guiding groove.

[0018] Compared with the prior art, the steel bar bundling machine of the present invention has the following beneficial effects: In the steel bar bundling machine of the present invention, by arranging a wire splitting step at the bottom of the wire guiding groove of the coiling plate, the wire guiding groove is divided into a coiling groove and a wire guiding groove with a depth difference. When the wire feeding mechanism guides the iron wire onto the coiling plate, the iron wire first enters the coiling groove, and then under the action of the curling at the bottom of the coiling groove and the support and guidance of the guide, the iron wire enters the wire guiding groove. The above-mentioned wire splitting step can prevent the second loop of wire from interfering with the first loop of wire, ensuring that the second loop of wire can be smoothly led out from the wire guiding groove. In addition, by arranging the coiling groove on one side at the lower end of the wire splitting step and the wire guiding groove on one side at the upper end of the wire splitting step, it can make the diameter of the wire loop formed by curling in the coiling groove larger, so that the wire can closely adhere to the bottom of the wire guiding groove when moving in the wire guiding groove, ultimately improving the coiling effect of the second loop of wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a cross-sectional view of the steel bar bundling machine of the prior art "CN201420022567.4";

[0020] Figure 2 is a cross-sectional view of the guiding part in the prior art "CN201611109727.9";

[0021] Figure 3 Front view of the steel bar bundling machine in Embodiment 1;

[0022] Figure 4 is the front view of the coiling plate;

[0023] Figure 5 is the perspective view of the first coiling plate;

[0024] Figure 6 is the perspective view of the second coiling plate;

[0025] Figure 7 is Figure 4 the cross-sectional view of the A-A section in

[0026] Figure 8 is the top view of the coiling plate;

[0027] Figure 9 is Figure 8 the cross-sectional view of the B-B section in

[0028] Figure 10 is the bottom view of the coiling plate;

[0029] Figure 11 is the perspective view of the guide;

[0030] Figure 12 is the perspective view of the second coiling plate in Embodiment 2;

[0031] Figure 13The bottom view of the looping plate in Embodiment 2;

[0032] Housing 1; wire feeding mechanism 2; braking mechanism 3; wire winding mechanism 4; looping plate 5; first looping plate 5'; second looping plate 5"; wire guiding groove 51; wire splitting step 511; looping groove 512; second wire feeding end 5121; second wire discharging end 5122; wire aligning groove 513; first wire feeding end 5131; first wire discharging end 5132; first guiding surface 5133; guiding groove 5134; wire supporting bump 514; second guiding surface 5141; first wire feeding guiding plate 52; second wire feeding guiding plate 53; guide 6; guiding groove 61. Detailed implementation manners

[0033] Embodiment 1

[0034] A steel bar bundling machine, see Figure 3 , including a housing 1, a wire feeding mechanism 2 arranged in the housing 1, a braking mechanism 3, a wire winding mechanism 4, and a looping plate 5 and a guide 6 which are arranged at the front end of the housing 1 and are oppositely arranged. Among them, the wire feeding mechanism 2 is used to guide the iron wire to the looping plate 5, the looping plate 5 and the guide 6 are used to bend the iron wire into a circular shape so as to wind the steel bar, the wire winding mechanism 4 is used to tighten the iron wire wound on the steel bar, and the braking mechanism 3 is used to brake the wire reel when the wire feeding mechanism stops feeding wire. When the steel bar bundling machine is to be used, loading a wire reel into the housing can perform the steel bar bundling work.

[0035] See Figures 4 - 7 , the looping plate is provided with a wire guiding groove 51, the bottom of the wire guiding groove 51 is provided with a wire splitting step 511, one side of the lower end of the wire splitting step 511 is a looping groove 512, one side of the upper end of the wire splitting step 511 is a wire aligning groove 513, and the bottom shapes of the looping groove 512 and the wire aligning groove 513 are arc-shaped. See Figure 7 , the cross-sectional shape of the wire splitting step 511 is in the shape of a right-angle step. Of course, it can also be in other forms of step shapes, which will not be elaborated here. The above-mentioned bundling machine divides the wire guiding groove 51 into a looping groove 512 and a wire aligning groove 513 with a depth difference by arranging the wire splitting step 511 at the bottom of the wire guiding groove 51 of the looping plate. When the wire feeding mechanism guides the iron wire to the looping plate, the iron wire first enters the looping groove 512, and then under the action of the bending at the bottom of the looping groove 512 and the support and guidance of the guide 6, the wire head enters the wire aligning groove 513. The above-mentioned wire splitting step 511 can avoid the interference between the second loop of wire and the first loop of wire, and ensure that the second loop of wire can be smoothly led out from the wire aligning groove 513. In addition, by arranging the looping groove 512 on one side of the lower end of the wire splitting step 511 and the wire aligning groove 513 on one side of the upper end of the wire splitting step 511, the diameter of the first loop of wire formed by bending the looping groove 512 can be made larger, so that the second loop of wire can closely adhere to the bottom of the wire aligning groove 513 when moving in the wire aligning groove 513, and finally improve the looping effect of the second loop of wire.

[0036] In the above structure, it should be noted that, first, the looping groove 512 is located at the lower end of the wire dividing step 511, and the wire guiding groove 513 is located at the upper end of the wire dividing step 511, that is, in the wire guiding groove 51, the depth of the looping groove 512 is greater than the depth of the wire guiding groove 513 (or rather, at the same central angle, the arc length of the bottom of the looping groove 512 is greater than the arc length of the bottom of the wire guiding groove 513); second, in order to make the boundary between the looping groove 512 and the wire guiding groove 513 clearer, in the direction of the top view projection of the looping plate, with the boundary between the upper end and the lower end of the wire dividing step 511 as the demarcation line, the side on the lower end side of the wire dividing step 511 is the looping groove 512, and the side on the upper end side of the wire dividing step 511 is the wire guiding groove 513.

[0037] For the above-mentioned wire dividing step 511, its height is between 0.45 and 3.15. It should be noted that the height of the wire dividing step 511 refers to the distance between the bottom of the looping groove 512 and the bottom of the wire guiding groove 513. When the iron wire enters the looping groove 512, the looping groove 512 bends the iron wire into a circular or circular arc shape with a certain curvature. When the iron wire enters the wire guiding groove 513, if the height of the wire dividing step 511 is too low, when the second loop of iron wire enters the wire guiding groove 513, it is difficult for the iron wire to adhere to the bottom of the wire guiding groove 513, and the iron wire easily enters the looping groove 512, and the second loop of iron wire easily interferes with the first loop of iron wire, affecting the circular forming effect of the iron wire; if the height of the wire dividing step 511 is too high, when the second loop of iron wire enters the wire guiding groove 513, the iron wire will adhere more tightly to the bottom of the wire guiding groove 513, which increases the normal pressure of the iron wire on the wire guiding groove 513, increases the friction between the iron wire and the wire guiding groove 513, increases the load of the driving device in the wire feeding mechanism 2, and shortens the service life of the driving device in the wire feeding mechanism 2.

[0038] See Figures 4 - 10 , a guiding groove 5134 is provided at the bottom of the wire guiding groove 513, and the side wall of the guiding groove 5134 close to the first wire outlet end 5132 inclines towards the looping groove 512. By providing the guiding groove 5134, when the first loop of iron wire enters the wire guiding groove 513, it moves into the looping groove 512 under the action of the side wall of the guiding groove 5134, which ensures that the first loop of iron wire forms a loop in the looping groove 512 and avoids interference when the second loop of iron wire enters the wire guiding groove 513.

[0039] See Figure 3 、 Figure 11, a guide groove 61 is provided on the guide 6, and the guide groove 61 is opposite to the wire-aligning groove 513. During the process of forming a loop of the wire, the guide groove 61 can support the wire, thereby preventing the wire from affecting the loop formation under the action of its own gravity. In addition, by making the guide groove 61 opposite to the wire-aligning groove 513, the second loop of wire can enter the wire-aligning groove 513 when forming a loop, thus avoiding problems such as wire feeding failure and poor loop formation effect caused by interference with the first loop of wire in the loop-forming groove 512. When assembling the above-mentioned guide 6, the distance between the guide 6 and the loop-forming groove 512 (wire-aligning groove 513) should be adaptively set according to the depth difference between the loop-forming groove 512 and the wire-aligning groove 513, so that the diameter of the first loop of wire is larger, thereby ensuring that the second loop of wire can closely move along the bottom of the wire-aligning groove 513 in the wire-aligning groove 513.

[0040] See Figures 4 - 10 , both ends of the loop-forming groove 512 are respectively a second wire-feeding end 5121 and a second wire-discharging end 5122, and a wire-supporting convex block 514 is provided on the side wall of the wire-guiding groove 51. In this embodiment, the wire-supporting convex block 514 can also be a cylindrical tungsten steel column, and its structure is a common structure in the field and will not be elaborated here. The wire-supporting convex block 514 is provided on one side of the loop-forming groove 512 and close to the second wire-feeding end 5121. By providing the wire-supporting convex block 514, the wire can be pressed and limited by the wire-supporting convex block 514 during the loop-forming process, preventing the wire from detaching from the bottom of the loop-forming groove 512 due to the resistance generated during deformation or its own gravity, thus ensuring that the wire can be effectively bent. In addition, during use, in order to prevent interference between the wire and the wire-supporting convex block when the wire-winding mechanism 4 tightens the wire, when using the hand-held bundling machine, the bundling machine is tilted towards the side with the wire-aligning groove. In this way, the wire will contract towards the wire-aligning groove side during the tightening process, thus avoiding interference between the wire and the wire-supporting convex block.

[0041] In the above solution, as an improvement, the groove width of the loop-forming groove 512 is less than or equal to the groove width of the wire-aligning groove 513. Specifically, the ratio of the groove width of the loop-forming groove 512 to the groove width of the wire-aligning groove 513 is 1:5 to 1:1. By providing the wire-aligning groove 513 with a larger groove width, the wire-aligning groove 513 has enough groove width to accommodate multiple loops of wire, expanding the applicable range of the bundling machine.

[0042] In this embodiment, the above-mentioned looping plate includes a first looping plate 5' and a second looping plate 5'' that are fastened to each other. The first looping plate 5' is provided with the looping groove 512, and the second looping plate 5'' is provided with the wire-aligning groove 513. The depth of the wire-aligning groove 513 is less than the depth of the looping groove 512. After the first looping plate 5' and the second looping plate 5'' are fastened together, a wire-splitting step 511 is formed between the bottom wall of the wire-aligning groove 513 and the looping groove 512. As another optional implementation manner, the first looping plate 5' is provided with the wire-splitting step 511, that is, both the looping groove 512 and the wire-aligning groove 513 are provided on the first looping plate 5', and the second looping plate 5'' is fastened to the first looping plate 5' to form the wire-guiding groove 51. The structure of the above-mentioned looping plate is simple and is easy to process, manufacture and assemble.

[0043] See Figures 3 - 10 , a first wire-feeding guiding plate 52 and a second wire-feeding guiding plate 53 are provided below the looping plate. Both the first wire-feeding guiding plate 52 and the second wire-feeding guiding plate 53 are inclined outward along the wire-guiding groove 51. A guiding groove 5134 is formed between the first wire-feeding guiding plate 52 and the second wire-feeding guiding plate 53 and is communicated with the wire-guiding groove 51. Since the guiding space of the guiding groove 5134 is relatively large, even if the iron wire is deflected before entering the wire-guiding groove 51, the guiding groove 5134 can guide the iron wire into the wire-guiding groove 51.

[0044] Embodiment 2

[0045] The purpose of this embodiment is to provide a steel bar bundling machine. The specific structure of this steel bar bundling machine is the same as that of Embodiment 1 and will not be elaborated here. The difference lies in:

[0046] See Figures 12 - 13 , the two ends of the wire-aligning groove 513 are respectively a first wire-feeding end 5131 and a first wire-exiting end 5132. A first guiding surface 5133 is provided at a position on the rear side of the wire-aligning groove 513 and close to the first wire-feeding end 5131. The first guiding surface 5133 is an arc surface and is inclined toward the looping groove 512. When bending the first loop of iron wire, if the wire-feeding mechanism does not guide the iron wire into the looping groove 512, the iron wire will move along the first guiding surface 5133 and finally enter the looping groove 512, thus ensuring that the first loop of iron wire forms a loop in the looping groove 512.

[0047] In the above structure, it should be noted that in Embodiment 1, a first guiding surface 5133 may also be provided at a position on the rear side of the wire-aligning groove 513 and close to the first wire-feeding end 5131, so as to further ensure that the first loop of iron wire can enter the looping groove 512.

[0048] In addition, in this embodiment, see Figure 13, the wire support bump 514 is provided as a bump structure protruding from the wire guiding groove. The side surface of the wire support bump 514 close to the wire guiding groove 513 is the second guiding surface 5141, and the second guiding surface 5141 is an arc surface, and the second guiding surface 5141 inclines towards the wire guiding groove 513. By providing the second guiding surface 5141, when the second turn of wire is about to enter the first wire inlet end 5131, if the wire inclines towards the wire forming groove 512, the wire moves along the second guiding surface 5141 and finally enters the wire guiding groove 513, thereby avoiding entering the wire forming groove 512 and causing interference between the two turns of wire.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that these embodiments can be changed without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel bar bundling machine, comprising a machine shell, a wire feeding mechanism, a braking mechanism, a wire winding mechanism arranged in the machine shell, and a forming plate and a guide arranged at the front end of the machine shell, the forming plate and the guide are arranged oppositely, and it is characterized in that: The loop forming plate is provided with a wire guiding groove, the bottom of the wire guiding groove is provided with a wire splitting step, one side at the lower end of the wire splitting step is a loop forming groove, and one side at the upper end of the wire splitting step is a wire aligning groove; The height of the wire splitting step is between 0.45 mm and 3.15 mm.

2. The steel bar bundling machine according to claim 1, characterized in that: The guide is provided with a guide groove, and the guide groove is opposite to the wire aligning groove.

3. The steel bar bundling machine according to claim 1, characterized in that: Both ends of the wire aligning groove are respectively a first wire inlet end and a first wire outlet end, a guiding groove is provided at the bottom of the wire aligning groove, and the side wall of the guiding groove close to the first wire outlet end inclines towards the loop forming groove.

4. The steel bar bundling machine according to claim 1, characterized in that: Both ends of the wire aligning groove are respectively a first wire inlet end and a first wire outlet end, a first guiding surface is provided at a position on the side of the wire aligning groove close to the winding mechanism and close to the first wire inlet end, and the first guiding surface inclines towards the loop forming groove side.

5. The steel bar bundling machine according to claim 1, characterized in that: Both ends of the loop forming groove are respectively a second wire inlet end and a second wire outlet end, a wire supporting convex block is provided on the side wall of the wire guiding groove, and the wire supporting convex block is provided on the side close to the second wire inlet end and on the side of the loop forming groove.

6. The steel bar bundling machine according to claim 5, wherein: The side surface of the wire supporting convex block close to the wire aligning groove is a second guiding surface, and the second guiding surface inclines towards the wire aligning groove.

7. The steel bar bundling machine according to claim 1, characterized in that: The groove width of the loop forming groove is less than or equal to the groove width of the wire aligning groove.

8. The steel bar bundling machine according to claim 1, characterized in that: The ratio of the groove width of the loop forming groove to the groove width of the wire aligning groove is 1:5 to 1:

1.

9. The steel bar bundling machine according to claim 1, wherein: The loop forming plate includes a first loop plate and a second loop plate; The loop forming groove is provided on the first loop plate, the wire aligning groove is provided on the second loop plate, the depth of the wire aligning groove is less than the depth of the loop forming groove, and after the first loop plate and the second loop plate are buckled, a wire splitting step is formed between the bottom wall of the wire aligning groove and the loop forming groove.

10. The steel bar bundling machine according to claim 1, characterized in that: The loop forming plate includes a first loop plate and a second loop plate, the wire splitting step is provided on the first loop plate, and after the first loop plate and the second loop plate are buckled, a wire guiding groove is formed between the first loop plate and the second loop plate.

11. The steel bar bundling machine according to any one of claims 1-10, characterized in that: The loop forming plate is provided with a first wire inlet guiding plate and a second wire inlet guiding plate, both the first wire inlet guiding plate and the second wire inlet guiding plate incline outwards along the wire guiding groove, and a guiding groove is formed between the first wire inlet guiding plate and the second wire inlet guiding plate and is communicated with the wire guiding groove.

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