Binding machine with high withdrawing reliability of wire supporting column

Abstract

The utility model relates to the technical field of strapping machines, and particularly discloses a strapping machine with high reliability of withdrawing a wire supporting column. The device comprises a machine shell, a wire outlet plate and a wire supporting mechanism. The wire supporting mechanism comprises a wire supporting column, a swing rod and a push-pull rod. The swing rod is hinged in the machine shell, the wire supporting column is arranged on the swing rod and stretches into the wire guide groove to support the silk thread, a driving assembly used for driving the push-pull rod to move front and back is arranged in the machine shell, and the push-pull rod is connected with the swing rod to drive the swing rod to swing and drive the wire supporting column to tilt to leave the wire guide groove so as to release the silk thread. A connecting piece is fixed to the output end of the driving assembly, and the connecting piece limits the push-pull rod front and back and limits the push-pull rod up and down. By arranging the connecting piece, the push-pull rod is limited front and back and limited up and down through the connecting piece, so that even if the machine shell works for a long time and is heated, the phenomenon that the push-pull rod moves and deviates due to deformation of the machine shell is avoided, the withdrawing reliability of the wire supporting column is improved, and it is guaranteed that an iron wire can be smoothly released from the wire supporting column.

Description

Technical Field

[0001] This utility model relates to the technical field of strapping machines, and specifically discloses a strapping machine with high reliability in removing the support post. Background Technology

[0002] Strapping machines are indispensable power tools in both industrial and civilian sectors. With their high efficiency and convenience, they are widely used in construction, manufacturing, home renovation, and many other fields. With technological advancements and expanding market demand, the power tool industry has experienced rapid development, with increasingly diverse product types, continuous technological innovation, and a continuously expanding market size. Particularly in the construction sector, power tools such as strapping machines are widely used, significantly improving construction efficiency and reducing labor intensity. Strapping machines replace traditional manual strapping methods with mechanized operation, greatly improving work efficiency and strapping quality.

[0003] Taking the binding machine disclosed in patent 201680036175.5 as an example, its working principle mainly includes the following steps: First, the wire is fed to the coiling guide unit through the feeding unit, where the wire is coiled; then, the retraction mechanism withdraws after the wire is coiled, releasing the wire, while the cutting unit cuts the wire; finally, the winding mechanism clamps and tightens the two ends of the wire, completing the binding of the reinforcing bars. The retraction mechanism of this binding machine, through linkage with the winding mechanism, drives the retraction mechanism to move back and forth, converting this movement into a horizontal rotation of the guide pin. However, in actual use, especially when the binding machine heats up after prolonged use, the retraction mechanism often malfunctions, preventing the wire from being smoothly released from the guide pin, affecting the normal use of the binding wire. Therefore, a solution is needed to address the poor reliability of the binding machine's retraction mechanism. Utility Model Content

[0004] Research revealed that the malfunction of the retraction mechanism in the existing technology is directly related to the connection structure between the retraction mechanism and the winding mechanism. The existing retraction mechanism uses a downward-facing slot, relying on the upward insertion of the winding mechanism's front and rear drive components to achieve forward and backward traction (e.g., ...). Figure 1 (As shown in the circled area), the mechanism relies on the inner side of the housing to adhere to the top of the retraction structure for guidance and positioning during forward and backward movement. However, if the housing deforms due to heat, the retraction mechanism is prone to arching or tilting upwards, deviating from the preset direction and failing to smoothly rotate and retract with the guide shaft, thus causing the release wire to malfunction. The purpose of this invention is to overcome the shortcomings of the prior art and provide a strapping machine with high reliability in retracting the support post.

[0005] This utility model discloses a binding machine with high reliability in removing the support post, which adopts the following technical solution:

[0006] The application discloses a bundling machine with high reliability of supporting column evacuation, which comprises a machine shell, wherein

[0007] An out-silk plate is provided with a wire guide groove for guiding the silk into a loop.

[0008] A silk supporting mechanism comprises a supporting column, a swing lever and a push-pull lever. The swing lever is hinged in the machine shell, the supporting column is arranged on the swing lever and extends into the wire guide groove to support the silk, a driving assembly for driving the push-pull lever to move forward and backward is arranged in the machine shell, the push-pull lever is connected with the swing lever to drive the swing lever to swing and drive the supporting column to lift up and evacuate the wire guide groove to release the silk.

[0009] The output end of the driving assembly is fixed with a connecting piece, and the connecting piece forms forward and backward limiting and upward and downward limiting for the push-pull lever.

[0010] Preferably, the connecting piece is provided with a connecting protrusion, and the push-pull lever is provided with a connecting hole matched with the connecting protrusion for plug-in connection.

[0011] Alternatively, the push-pull lever is provided with a connecting protrusion, and the connecting piece is provided with a connecting hole matched with the connecting protrusion for plug-in connection.

[0012] Alternatively, the push-pull lever is provided with at least two connecting grooves respectively facing different opening directions, and the connecting piece is provided with connecting protrusions respectively matched with the two connecting grooves for plug-in connection.

[0013] Preferably, the machine shell is provided with a push-pull guide rail, and at least part of the push-pull lever moves in the push-pull guide rail.

[0014] Preferably, the push-pull lever is provided with a guide long hole, and the push-pull guide rail is provided with a guide pin penetrating through the guide long hole.

[0015] Preferably, the push-pull lever has a platform end and a recessed end arranged in front and back, and one end of the swing lever away from the supporting column elastically abuts against the push-pull lever. With the forward and backward movement of the push-pull lever, the swing lever is switched and slid on the platform end and the recessed end of the push-pull lever, so that the push-pull lever drives the swing lever to swing.

[0016] Preferably, the push-pull lever is provided with a guide long hole, and the push-pull guide rail is provided with a guide pin penetrating through the guide long hole, and the recessed end is part of the guide long hole.

[0017] Preferably, the end of the swing lever in contact with the push-pull lever is provided with a guide inclined surface.

[0018] Preferably, the hinge shaft of the swing lever is provided with a torsional spring, and the torsional spring forms elastic abutment of the swing lever on the surface of the push-pull lever.

[0019] Preferably, the driving assembly comprises a driving member arranged in the casing, a lead screw assembled on the driving member, a moving sleeve threadedly assembled outside the lead screw, and a limiting member for limiting rotation of the moving sleeve; the connecting member is fixed on the moving sleeve.

[0020] Preferably, the connecting member is provided with a sleeve hole for sleeing and fixing on the moving sleeve.

[0021] Compared with the prior art, the utility model has at least the following beneficial effects:

[0022] The utility model discloses a connecting member is arranged on the driving assembly, and the push-pull rod is formed front and rear limit and upper and lower limit by the connecting member, so that the push-pull rod is not only moved by the front and rear traction of the connecting member, realizes the rotation and evacuation action of the supporting wire column, and because the push-pull rod is limited to move up and down by the connecting member, so even when the casing works for a long time and generates heat, the casing will not be deformed to cause the movement deviation of the push-pull rod, so that the evacuation reliability of the supporting wire column is improved, and it is guaranteed that the iron wire can be smoothly released from the supporting wire column. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structure schematic diagram of the bundling machine of prior art;

[0024] Figure 2 It is the structure schematic diagram of the bundling machine of the utility model with high supporting wire column evacuation reliability;

[0025] Figure 3 It is the structure schematic diagram of the bundling machine after removing the casing of the utility model;

[0026] Figure 4 It is the structure schematic diagram of the wire winding mechanism of the utility model; Figure 5 It is the connecting schematic diagram of the connecting member and the push-pull rod of the utility model;

[0027] Figure 6 It is the structure schematic diagram of the push-pull rod of the utility model;

[0028] Figure 7 It is the structure schematic diagram of the connecting member of the utility model;

[0029] Figure 8 It is the structure schematic diagram of the swing rod of the utility model;

[0030] Figure 9 It is the state schematic diagram of the swing rod of the utility model and drives the supporting wire column to leave the wire guide groove of the wire plate.

[0031] Explanation of reference numerals:

[0032] 1, the shell; 2, the silk plate; 3, the wire feeding mechanism; 4, the wire winding mechanism; 41, the moving sleeve; 42, the driving part; 43, the limiting part; 5, the wire supporting mechanism; 51, the swing rod; 511, the rotating shaft; 512, the wire supporting part; 513, the abutting part; 514, the guide inclined surface; 52, the wire supporting column; 53, the push-pull rod; 531, the connecting hole; 532, the platform end; 533, the guide long hole; 6, the connecting part; 61, the connecting protrusion; 62, the sleeve hole; 7, the push-pull guide rail; 71, the guide pin. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent and easy to understand, the utility model will be further explained in detail below with the drawings and specific embodiments.

[0034] A bundling machine with high wire supporting column evacuation reliability, referring to Figures 2-3 It includes the shell, the shell 1, the silk plate 2 arranged at the front end of the shell 1 and the wire feeding mechanism 3, the wire winding mechanism 4 and the wire supporting mechanism arranged in the shell 1. The wire feeding mechanism 3 includes a wire feeding motor and a wire feeding gear set driven by the wire feeding motor, and the wire feeding mechanism 3 is used to deliver the wire into the silk plate 2. The silk plate 2 is provided with a wire guide groove, and the wire delivered into the silk plate 2 is guided into a coil in the wire guide groove. The wire winding mechanism 4 includes a driving assembly and a clamping jaw linked with the driving assembly, and the wire winding mechanism 4 is used to clamp and tighten the wire. Specifically, the driving assembly can include a driving part 42 arranged in the shell 1, a lead screw assembled on the driving part 42, a moving sleeve 41 screw assembled outside the lead screw, and a limiting part 43 for limiting the rotation of the moving sleeve 41. The moving sleeve 41 moves forward to a set distance and then disengages from the limiting part 43 to rotate with the lead screw, so as to link the clamping jaw to realize the clamping and tightening effect on the wire. The limiting part 43 specifically includes two limiting arms of different lengths and a return spring assembled on the limiting arms, and a limiting through groove is formed between the two limiting arms. The moving sleeve 41 is provided with a guide protrusion matched with the limiting through groove, and the return spring is used to make the two limiting arms have an opening trend, so as to drive the guide protrusion to be re-limited in the limiting through groove when the moving sleeve reverses. The other structures of the wire feeding mechanism 33 and the wire winding mechanism 44 of the present scheme are all prior art, and will not be described here.

[0035] Referring to Figure 3, the supporting mechanism 5 comprises a supporting column 52, a swing lever 51 and a push-pull lever 53. The swing lever 51 is hinged at a rotating shaft 511 in the casing 1, one end of the swing lever 51 is a supporting portion 512, and the other end is an abutting portion 513. The supporting column 52 is arranged on the supporting portion 512 of the swing lever 51 and extends into the wire groove, and plays a role of supporting the wire. The moving sleeve 41 of the driving assembly is fixed with a connecting piece 6, the connecting piece 6 is provided with a sleeve hole 62 which is sleeved and fixed on the moving sleeve 41, and at the same time, the connecting piece 6 forms front and rear limiting and upper and lower limiting for the push-pull lever 53, so that the push-pull lever 53 is driven by the moving sleeve 41 to move forward and backward under the action of the driving assembly, the push-pull lever 53 is connected with the swing lever 51 to drive the swing lever 51 to swing, and the supporting column 52 is lifted away from the wire groove to release the wire. Specifically, see Figures 5-6 In the present scheme, the connecting piece 6 is provided with a connecting protrusion 61, and the push-pull lever 53 is provided with a connecting hole 531 for matching and inserting the connecting protrusion 61. Of course, the push-pull lever can be provided with a connecting protrusion, and the connecting piece can be provided with a connecting hole for matching and inserting the connecting protrusion. Alternatively, the push-pull lever can be provided with at least two connecting grooves facing different opening directions, and the connecting piece can be provided with connecting protrusions matching and inserting the two connecting grooves. These structures can all achieve the front and rear limiting and upper and lower limiting of the connecting piece 6 for the push-pull lever 53.

[0036] The connecting and swinging structure of the push-pull lever 53 for the swing lever 51 in the example of the present embodiment is shown in Figures 5-9 The push-pull lever 53 has a platform end 532 and a recessed end arranged in front and back, and the end of the swing lever 51 away from the supporting column 52 (i.e. the abutting portion 513) elastically abuts on the push-pull lever 53. Specifically, a torsion spring (not shown in the figure) can be arranged on the hinge shaft of the swing lever 51 to achieve elastic abutment of the swing lever 51 on the surface of the push-pull lever 53. Of course, other elastic members such as elastic sheets can also be used. With the forward and backward movement of the push-pull lever 53, the swing lever 51 slides and switches between the platform end 532 and the recessed end of the push-pull lever 53, forming the connecting and swinging of the push-pull lever 53 for the swing lever 51, and achieving the action of lifting the supporting column 52 away from the wire groove to release the wire. Referring to Figure 7 The end of the swing lever 51 in contact with the push-pull lever 53 is preferably provided with a guide inclined surface 514 to improve the smoothness of the abutment and sliding of the swing lever 51 on the surface of the push-pull lever 53.

[0037] As a preferred scheme, the casing 1 is provided with a push-pull guide rail 7, and at least part of the push-pull lever 53 moves in the push-pull guide rail 7, thereby improving the movement stability of the push-pull lever 53. In addition, the push-pull lever 53 is provided with a guide long hole 533, and the push-pull guide rail 7 is provided with a guide pin 71 passing through the guide long hole 533, further improving the movement stability of the push-pull lever 53. In the present embodiment, the recessed end of the push-pull lever 53 is part of the guide long hole 533, which simplifies the structure and improves the assembly efficiency.

[0038] The principle of the scheme is that by arranging the connecting piece 6 between the push-pull rod 53 and the driving assembly, the forward and backward and upward and downward limiting of the push-pull rod 53 is realized, so that the push-pull rod 53 can not only move forward and backward by the traction of the connecting piece 6 to realize the action of swinging and withdrawing the supporting wire column 52, but also the upward and downward movement of the push-pull rod 53 is limited by the connecting device, so that even in the case that the machine shell 1 is heated and deformed due to long time work, the deviation of the push-pull rod 53 will not be caused, thereby the reliability of the withdrawal of the supporting wire column 52 is improved, and the smoothness of the wire from the supporting wire column 52 is ensured.

[0039] The above describes the technical scheme provided by the utility model in detail, the principle and implementation mode of the utility model are described by applying specific examples in this paper, the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the utility model, the specific implementation mode and application range will have changes, and the above is not understood as the limitation of the utility model.

Claims

1. A bundling machine with high support post evacuation reliability, comprising a machine shell, the machine shell being internally provided with: a wire outlet plate provided with a wire guide groove for guiding the wire into a loop; a wire supporting mechanism comprising a support post, an oscillating lever and a push-pull lever; the oscillating lever is hingedly connected in the machine shell, the support post is arranged on the oscillating lever and extends into the wire guide groove to support the wire, the machine shell is internally provided with a driving assembly for driving the push-pull lever to move forward and backward, the push-pull lever is connected to the oscillating lever to drive the oscillation of the oscillating lever, thereby driving the support post to lift up and evacuate the wire guide groove to release the wire; characterized in that an output end of the driving assembly is fixed with a connecting piece, the connecting piece forms forward and backward limiting and upward and downward limiting for the push-pull lever.

2. The stranding machine according to claim 1, wherein a connecting lug is arranged on the connecting piece, and a connecting hole is formed in the push-pull lever for matching and inserting the connecting lug; alternatively, a connecting lug is arranged on the push-pull lever, and a connecting hole is formed in the connecting piece for matching and inserting the connecting lug; alternatively, at least two connecting grooves are arranged on the push-pull lever and face different opening directions, and connecting lugs are arranged on the connecting piece and match and insert the two connecting grooves, respectively.

3. The stranding machine of claim 1, wherein a push-pull guide rail is arranged in the machine shell, and at least part of the push-pull lever moves in the push-pull guide rail.

4. The stranding machine of claim 3, wherein a guide long hole is arranged on the push-pull lever, and a guide pin is arranged on the push-pull guide rail and passes through the guide long hole.

5. The stranding machine of claim 1, wherein the push-pull lever has a platform end and a recessed end arranged in front and back, an end of the oscillating lever away from the support post elastically abuts against the push-pull lever, and as the push-pull lever moves forward and backward, the oscillating lever slides and switches between the platform end and the recessed end of the push-pull lever, thereby forming the coupled oscillation of the push-pull lever to the oscillating lever.

6. The stranding machine of claim 5, wherein a push-pull guide rail is arranged in the machine shell, and at least part of the push-pull lever moves in the push-pull guide rail, a guide long hole is arranged on the push-pull lever, and a guide pin is arranged on the push-pull guide rail and passes through the guide long hole, the recessed end is part of the guide long hole.

7. The stranding machine of claim 5, wherein a guide inclined surface is arranged on the end of the oscillating lever in contact with the push-pull lever.

8. The stranding machine of claim 5, wherein, a torsional spring is arranged on the hinged shaft of the oscillating lever, and the torsional spring forms the elastic abutment of the oscillating lever on the surface of the push-pull lever.

9. The stranding machine of claim 1, wherein, the driving assembly comprises a driving member arranged in the machine shell, a lead screw assembled on the driving member, a moving sleeve threadedly assembled outside the lead screw, and a limiting member for limiting the rotation of the moving sleeve; the connecting piece is fixed on the moving sleeve.

10. The stranding machine of claim 1, wherein a sleeve hole is arranged on the connecting piece and is sleeved and fixed on the moving sleeve.

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