Binding machine facilitating threading of wire coil

Abstract

The utility model relates to the technical field of strapping machines, and particularly discloses a strapping machine facilitating threading of a wire coil. Comprising a machine shell, a wire disc bin arranged in the machine shell, a driving gear and a driven gear which are used for clamping and conveying wires, and a wire feeding driving piece used for driving the driving gear to rotate. The scroll bin is provided with an open area, the open area is covered with a scroll bin cover, a gear support is hinged to the interior of the machine shell, and the driven gear is connected to the gear support through a shaft. A rotating arm is hinged in the machine shell, a hinge shaft of the rotating arm is parallel to a rotating shaft of the driven gear, one end of the rotating arm is connected with one side of the gear support, the other end of the rotating arm extends to the open area of the scroll bin, a first elastic piece is arranged in the machine shell and drives one end of the rotating arm to abut against the gear support, and the gear support drives the driven gear to be meshed with the driving gear.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of strapping machine, specifically disclose a strapping machine convenient for wire reel threading. BACKGROUND

[0002] Strapping machine is a kind of handheld tool widely used in construction industry, mainly used for fixing reinforcing bar with iron wire, to ensure the stability and safety of structure. This tool replaces the traditional manual strapping by mechanization, greatly improves work efficiency and strapping quality. The main functions of strapping machine include feeding, guiding, curling, holding, cutting, twisting and releasing, etc. multiple steps, through accurate control of the strapping process of iron wire, ensure the firm and reliable of reinforcing structure

[0003] For example, the strapping machine disclosed in patent 201680036175.5, its structure includes feeding unit, curling guide unit, cutting unit, strapping unit, etc. These units work together to complete the feeding, guiding, curling, holding, cutting, twisting and releasing of wire, etc. multiple steps. In the feeding unit, the iron wire is fed upward by the extrusion action of two feeding gears. However, when the iron wire is used up and needs to be replenished with new iron wire, the existing displacement unit design is complex, including displacement components, springs, release levers, operation buttons and other parts, which not only increases the difficulty of assembly, but also increases the production and maintenance cost. In addition, the operation button and other components need to be matched with the corresponding open cavity on the machine shell, further increasing the manufacturing complexity and cost. Therefore, the existing strapping machine has obvious shortcomings in structure design and operation convenience, and a new strapping machine structure is urgently needed. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at overcoming the insufficient of prior art, provide a kind of strapping machine convenient for wire reel threading.

[0005] The utility model discloses a kind of strapping machine convenient for wire reel threading, using following technical scheme:

[0006] A kind of strapping machine convenient for wire reel threading, comprising: machine shell, wire reel storehouse being set in machine shell, for clamping and conveying wire main drive gear and driven gear, and for driving main drive gear rotation wire feeding driving part;The wire reel storehouse has open area, the open area is covered with wire reel storehouse cover, hinge is connected in the machine shell gear support, the driven gear is connected on gear support;Rotary arm is hinged in the machine shell, the hinge shaft of rotary arm is parallel to the rotary shaft of driven gear, one end of rotary arm is located in the side of gear support, the other end extends to the open area of wire reel storehouse, first elastic member is provided in the machine shell, the first elastic member drives one end of rotary arm and abuts gear support, gear support drives driven gear and engages main drive gear.

[0007] Preferably, a locking clamp hinged in the casing and a second elastic member connected with the locking clamp are further included, the locking clamp is located at the open area of the spool holder, the abutment of the rotating arm to the gear support is released, and the locking clamp is clamped and locked by the second elastic member.

[0008] Preferably, the end of the rotating arm extending out of the open area is provided with a protrusion matched with the locking clamp.

[0009] Preferably, the top of the locking clamp is provided with a guide arc surface, and the guide arc surface of the locking clamp passes along the bottom surface of the rotating arm to the top surface of the rotating arm during the pressing process of the rotating arm.

[0010] Preferably, a pressing base is arranged in the casing, the first elastic member is a spring, the first elastic member is connected between the pressing part and the pressing base, and the locking clamp is hinged on the pressing base.

[0011] Preferably, the rotating arm comprises a hinged part, an abutting part and a pressing part, the abutting part is connected to one side of the hinged part and abuts against the gear support, and the pressing part is connected to the other side of the hinged part, and the open area of the spool holder exposes the pressing part.

[0012] Preferably, a wire threading guide groove is arranged below the driving gear and the driven gear, and an inclined part is arranged between the pressing part and the hinged part, and the inclined part offsets the pressing part from the wire threading guide groove.

[0013] Preferably, the surface of the pressing part is provided with concave-convex patterns.

[0014] Preferably, a rolling shaft is arranged at the end of the rotating arm abutting against the gear support.

[0015] Preferably, the wire feeding driving member comprises a wire feeding motor and a wire feeding reduction gear set assembled with the wire feeding motor, a gear box is arranged in the casing, and the wire feeding reduction gear set, the driving gear, the gear support and the rotating arm are mounted on the gear box.

[0016] Compared with the prior art, the utility model at least has the following beneficial effects:

[0017] The utility model discloses a change the position and hinged axle direction of rotating arm, distinguish from the rotating arm hinged axle and gear shaft vertical structure of existing bundling machine, the rotating arm hinged axle of this scheme is parallel with gear shaft, thereby the one end of rotating arm can extend to the open area of silk disc storehouse, so as to facilitate the worker when loading new wire reel, the one end of rotating arm can be pressed at the open area of silk disc storehouse, and the other end of rotating arm is away from the abutment of gear support, thereby removing the limit to driven gear, two gears can be separated and supply silk line to enter, the structure component of this scheme bundling machine is less, and the structure is simpler, and the production cost is lower, and the assembly efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is the whole schematic diagram of the bundling machine of the utility model for the wire reel silk threading convenience;

[0019] Fig. 2 It is the bundling machine open silk disc storehouse cover's schematic diagram of the utility model;

[0020] Fig. 3 It is the structure schematic diagram of the bundling machine dismantling part casing of the utility model;

[0021] Fig. 4 It is the structure schematic diagram of the bundling machine rotating arm of the utility model;

[0022] Fig. 5 It is the clamping fixed schematic diagram of the bundling machine locking clamp to rotating arm of the utility model;

[0023] Fig. 6 It is the side view of the bundling machine for showing silk threading observation space of the utility model.

[0024] Explanation of the attached drawings:

[0025] 1, casing;2, silk outlet plate;3, silk disc storehouse;31, silk disc storehouse cover;4, driving gear;5, driven gear;6, gear support;61, contact lug;7, rotating arm;71, abutting portion;711, rolling shaft;72, hinged portion;73, inclined portion;74, pressing portion;741, protrusion;8, first elastic member;9, pressing base;10, locking clamp;101, guide camber;11, silk threading guide groove;12, gear box. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0027] A kind of bundling machine for the wire reel silk threading convenience, refer to Figs. 1-3The device comprises a casing 1, a yarn feeding plate 2 arranged in the casing 1, a yarn disc storage 3, and a yarn feeding mechanism. The yarn disc storage 3 is used for storing yarn discs, and the yarn disc storage 3 has an open area which is covered by a yarn disc storage cover 31. The yarn feeding mechanism is used for feeding the yarn discs in the yarn disc storage 3 to the yarn feeding plate 2. The yarn feeding mechanism comprises a driving gear 4, a driven gear 5, a gear support 6, and a yarn feeding driving element used for driving the driving gear 4 to rotate. The gear support 6 is hinged in the casing 1, the driven gear 5 is shaft-connected to the gear support 6, the driving gear 4 and the driven gear 5 are provided with a yarn passing guide groove 11 below, and the yarn of the yarn disc passes through the yarn passing guide groove 11 upwards between the driven gear 5 and the driving gear 4. The driven gear 5 and the driving gear 4 are engaged to clamp and feed the yarn.

[0028] With reference to Figs. 3-5 , a rotating arm 7 is hinged in the casing 1, the hinge shaft of the rotating arm 7 is parallel to the rotating shaft of the driven gear 5, one end of the rotating arm 7 is located at one side of the gear support 6, the other end of the rotating arm 7 extends to the open area of the yarn disc storage 3, a first elastic element 8 is arranged in the casing 1, the first elastic element 8 drives one end of the rotating arm 7 to abut against the gear support 6, and the gear support 6 drives the driven gear 5 to engage the driving gear 4. A gear box 12 is arranged in the casing 1, and the yarn feeding reduction gear set, the driving gear 4, the gear support 6, and the rotating arm 7 can be mounted on the gear box 12 to form an assembly unit, thereby improving the assembly efficiency and the connection stability.

[0029] Specifically, with reference to Figs. 4-5 , the rotating arm 7 comprises a hinged part 72, an abutting part 71, and a pressing part 74. The rotating arm 7 is connected to the gear box 12 through the hinged part 72, the abutting part 71 is connected to one side of the hinged part 72 and abuts against the gear support 6, the abutting part 71 is provided with a rolling shaft 711, the gear support 6 is provided with a contact protrusion 61, when the rotating arm 7 rotates, the rolling shaft 711 rolls in contact with the contact protrusion 61, thereby reducing the abrasion between the rotating arm 7 and the gear support 6 and prolonging the service life. The pressing part 74 is located at the other end of the hinged part 72 away from the abutting part 71, and the surface of the pressing part 74 is provided with concave-convex patterns, thereby better avoiding the slipping of the operator when pressing. In the embodiment, the open area of the yarn disc storage 3 exposes the pressing part 74 of the rotating arm 7. Of course, in other embodiments, the open area of the yarn disc storage 3 exposes more parts of the rotating arm 7, and the rotating arm 7 which only exposes the pressing part 74 can be beneficial to the aesthetics and dustproof. In the embodiment, a pressing base 9 is arranged in the casing 1, the first elastic element 8 is a spring, and the first elastic element 8 is connected between the pressing part 74 and the pressing base 9. In other embodiments, a tension spring can be used as the first elastic element 8 on the side of the abutting part 71 of the rotating arm 7.

[0030] As a preferred solution, with reference to Figs. 5-6The rotating arm 7 is composed of a hinged part 72, an abutting part 71, an inclined part 73 and a pressing part 74, the pressing part 74 is connected with the hinged part 72 through the inclined part 73, so that the rotating arm 7 is not a straight rod, but has a bending shape, the inclined part 73 offsets the pressing part 74 from the wire threading guide groove 11, so that one side of the wire threading guide groove 11 has a wider wire threading observation space, which is beneficial to the wire threading of the operator.

[0031] As a preferred solution, the locking clamp 10 is hinged on the pressing base 9, a second elastic member, which is a torsion spring (not shown in the figure), is connected on the hinge shaft of the locking clamp 10, the elastic coefficient of the second elastic member is greater than that of the first elastic member 8, the locking clamp 10 is located in the open area of the wire disc bin 3, the rotating arm 7 is released from the abutting of the gear support 6, the locking clamp 10 clamps and locks the pressing part 74 of the rotating arm 7 under the action of the second elastic member, so that the operator can fix the rotating position of the rotating arm 7 through the locking clamp 10, thereby realizing the single-handed wire threading work.

[0032] The principle of the solution is that, unlike the layout that the hinge shaft of the rotating arm 7 is perpendicular to the gear rotating shaft in the existing bundling machine, the hinge shaft of the rotating arm 7 is parallel to the gear rotating shaft in the solution, so that one end of the rotating arm 7 can extend downward to the open area of the wire disc bin 3, when the worker opens the wire disc bin cover 31 to replace a new wire disc, the worker can press the pressing part 74 of the rotating arm 7 in the open area of the wire disc bin 3, so that the abutting part 71 of the rotating arm 7 is separated from the gear support 6, thereby releasing the restriction on the driven gear 5, so that the two gears can be separated, which is beneficial to the wire threading, the design of the solution makes the structure of the bundling machine have fewer components and be more simple, without the need of designing a complex component and a hole structure outside the machine shell 1 for releasing the activity restriction of the driven gear 5, which reduces the production cost and improves the assembly efficiency.

[0033] The technical solutions provided by the present application are described in detail above, the principles and implementation modes of the present application are described by applying specific examples, the description of the above examples is only used to help understand the method and core idea of the present application; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range of the present application will be changed, and the content of the specification should not be understood as the limitation of the present application.

Claims

1. A strapping machine that facilitates wire spool threading, comprising: A casing, a spool holder arranged in the casing, a driving gear and a driven gear for clamping a wire to be conveyed, and a wire feeding drive for driving the driving gear to rotate; The spool holder has an open area, the open area is covered with a spool holder cover, a gear support is hinged in the casing, and the driven gear is connected to the gear support; The casing is hinged with a rotating arm, the hinge axis of the rotating arm is parallel to the rotating shaft of the driven gear, one end of the rotating arm is located on one side of the gear support, the other end extends to the open area of the spool holder, a first elastic member is arranged in the casing, the first elastic member drives one end of the rotating arm to abut against the gear support, and the gear support drives the driven gear to engage the driving gear.

2. The strapping machine of claim 1, wherein, A locking clamp is hinged in the casing, and a second elastic member is connected to the locking clamp, the locking clamp is located in the open area of the spool holder, the rotating arm is released from abutting against the gear support, and the locking clamp is clamped and locked to the rotating arm under the action of the second elastic member.

3. The strapping machine of claim 2, wherein, The end of the rotating arm extending out of the open area is provided with a protrusion matched with the locking clamp.

4. The strapping machine of claim 2, wherein, The top of the locking clamp is provided with a guide arc surface, and during the pressing process of the rotating arm, the guide arc surface of the locking clamp passes along the bottom surface of the rotating arm to the top surface of the rotating arm.

5. The strapping machine of claim 2, wherein, The rotating arm includes a hinge part, an abutting part, and a pressing part; the abutting part is connected to one side of the hinge part and abuts against the gear support, and the pressing part is connected to the other side of the hinge part; a pressing base is arranged in the casing, the first elastic member is a spring, and the first elastic member is connected between the pressing part and the pressing base; and the locking clamp is hinged on the pressing base.

6. The strapping machine of claim 1, wherein, The rotating arm includes a hinge part, an abutting part, and a pressing part; the abutting part is connected to one side of the hinge part and abuts against the gear support, and the pressing part is connected to the other side of the hinge part; and the open area of the spool holder exposes the pressing part.

7. The strapping machine of claim 6, wherein, A wire feeding guide groove is arranged below the driving gear and the driven gear; an inclined part is arranged between the pressing part and the hinge part, and the inclined part offsets the pressing part from the wire feeding guide groove.

8. The strapping machine of claim 6, wherein, The surface of the pressing part is provided with concave-convex patterns.

9. The strapping machine of claim 1, wherein, One end of the rotating arm abutting against the gear support is provided with a rolling shaft.

10. The strapping machine of claim 1, wherein, The wire feeding drive includes a wire feeding motor and a wire feeding reduction gear set assembled with the wire feeding motor, a gear box is arranged in the casing, and the wire feeding reduction gear set, the driving gear, the gear support, and the rotating arm are mounted on the gear box.

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