An automatic hot-melting device for flexible shafts

Abstract

This utility model relates to the field of flexible shaft heat melting technology, specifically an automatic flexible shaft heat melting device, including a frame. A high-frequency induction heater is installed inside the frame, and a high-frequency induction coil is electrically connected to the high-frequency induction heater. A support mechanism is installed at one end of the frame, and a hopper is engaged within the support mechanism. A guide mechanism is fixed on the hopper, and the guide mechanism includes a fixed rod and a hydraulic rod. Fixed rods are fixed at both ends of the hopper, and a hydraulic rod is installed inside the fixed rod. A support block is fixed at the telescopic end of the hydraulic rod, and a locking block is engaged on the support block. Support rods are fixed on both sides of the fixed rods, and a guide wheel rotates between the two support rods. The guide wheel guides the flexible shaft, fixing it inside the locking block and the support block. The hydraulic rod drives the support block to move upward, positioning the flexible shaft at the center of the high-frequency induction coil. This not only fixes and limits the two ends of the flexible shaft but also prevents wear on the surface of the flexible shaft.

Description

Technical Field

[0001] This utility model relates to a hot-melting device, specifically an automatic hot-melting device for flexible shafts, belonging to the field of flexible shaft hot-melting technology. Background Technology

[0002] Flexible shafts require frequent bending and stretching during operation. If gaps exist between the internal metal wires and the outer layer material, or between multiple metal wires, friction caused by vibration can lead to insulation damage, wire wear and breakage, and reduced service life. Hot-melt welding fills these gaps with molten material, solidifying the dispersed structure into a unified whole. Flexible shaft hot-melt welding typically relies on a high-frequency induction heating machine. Its core principle is that the machine outputs a high-frequency alternating current, generating an alternating magnetic field through a high-frequency induction coil. When the flexible shaft passes through the induction coil, eddy currents are generated in the metal components within the alternating magnetic field due to electromagnetic induction. As these eddy currents flow through the metal material, heat is generated due to the material's resistance, causing the metal components to heat up rapidly. This heat is transferred through thermal conduction to the outer coating material or the hot-melt material to be bonded, bringing these materials to their melting temperature. The molten material, being fluid, fills the gaps inside the flexible shaft or the contact surface with the mating components, achieving a tight fit.

[0003] However, when the flexible shaft is transported to the center of the sensor, due to the lack of a stable guiding and positioning mechanism, the part to be heated is easily deviated from the center of the high-frequency induction coil due to vibration and manual pushing deviation during the transport process. This will cause the heating area to shift, with some parts not being fully melted and some parts being overheated, resulting in poor heating effect of the flexible shaft. Utility Model Content

[0004] The purpose of this invention is to provide an automatic hot-melting device for flexible shafts in order to solve the above problems. The device guides the flexible shaft through guide wheels, so that it is centered when it is fixed inside the clamping block and the support block. The hydraulic rod drives the support block to move upward, so that the part of the flexible shaft to be hot-melted is located at the center of the high-frequency induction coil. This not only fixes and limits the two ends of the flexible shaft, but also prevents wear on the surface of the flexible shaft.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: an automatic hot-melt device for flexible shafts, comprising a frame, a high-frequency induction heater installed inside the frame, a high-frequency induction coil electrically connected to the high-frequency induction heater, a support mechanism installed at one end of the frame near the high-frequency induction coil, a hopper engaged within the support mechanism, a guide mechanism fixed on the hopper, the guide mechanism comprising a fixed rod and a hydraulic rod, fixed rods fixedly connected to both ends of the hopper, a hydraulic rod fixedly installed inside the fixed rod, a support block fixedly connected to the telescopic end of the hydraulic rod, a locking block engaged on the support block, support rods fixedly connected to both sides of the fixed rod, and a guide wheel rotatably mounted between the two support rods.

[0006] Preferably, the portion where the locking block engages with the support block is configured with an inclined surface, and the inner wall of the support block corresponding to the locking block is configured with an arc surface.

[0007] Preferably, the high-frequency induction coil is located at the center of the top of the hopper, and the hopper is arranged in an isosceles trapezoidal structure.

[0008] Preferably, the length of the locking block and the supporting block is greater than the length of the fixing rod, and the support rod is inclined.

[0009] Preferably, the height of the guide wheel is lower than the height of the support block, and the guide wheel is located at the end of the support rod away from the hopper.

[0010] Preferably, the support mechanism includes a bracket and a stop block. Two brackets are engaged on the frame, the hopper is engaged with the brackets, and a stop block is fixed at the bottom of the hopper, the stop block being in contact with one of the brackets.

[0011] Preferably, the support mechanism further includes stops, and the frame is symmetrically fixedly connected with two stops about the card holder, with the card holder located between the two stops.

[0012] Preferably, the card holder and the stop block are both located at one end of the frame near the high-frequency induction coil, and the collection hopper is located at the top of the card holder.

[0013] The beneficial effects of this utility model are as follows: A guide wheel rotates on the inclined support rod, which guides the flexible shaft smoothly into the heating area and reduces wear on the flexible shaft surface through rolling contact, thus preventing scratches. The arc surfaces of the inner walls of the support block and the locking block conform to the shape of the flexible shaft, avoiding excessive local pressure that could damage the insulation layer. They also limit and fix the two ends of the flexible shaft during heat fusion. The thrust of the hydraulic rod drives the support block upwards, ensuring that the flexible shaft engaged between the support block and the locking block is located at the center of the high-frequency induction coil, thereby preventing deviation in the heating area. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0016] Figure 3 This is a schematic diagram of the connection structure between the high-frequency induction heating machine and the high-frequency induction coil of this utility model;

[0017] Figure 4 This is a schematic diagram of the connection structure between the hopper and the card holder of this utility model;

[0018] Figure 5 This is a schematic diagram of the connection structure between the hopper and the abutment block of this utility model.

[0019] In the diagram: 1. Frame; 2. High-frequency induction heating machine; 3. High-frequency induction coil; 4. Collection hopper; 5. Support mechanism; 501. Card holder; 502. Stop block; 503. Abutment block; 6. Guide mechanism; 601. Guide wheel; 602. Support rod; 603. Fixed rod; 604. Hydraulic rod; 605. Card block; 606. Support block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5As shown, an automatic hot-melt device for flexible shafts includes a frame 1. A high-frequency induction heater 2 is installed inside the frame 1. A high-frequency induction coil 3 is electrically connected to the high-frequency induction heater 2. When the start button of the high-frequency induction heater 2 is pressed, the high-frequency induction coil 3 generates an alternating magnetic field to heat the part of the flexible shaft to be hot-melted. A support mechanism 5 is installed at one end of the frame 1 near the high-frequency induction coil 3. A hopper 4 is engaged inside the support mechanism 5. The high-frequency induction coil 3 is located at the center of the top of the hopper 4, and the hopper 4 is arranged in an isosceles trapezoidal structure. A guide mechanism 6 is fixed on the hopper 4. The guide mechanism 6 includes a fixed rod 603 and a hydraulic rod 604. Fixed rods 603 are fixedly connected to both ends of the hopper 4. Hydraulic rods 604 are fixedly installed inside the fixed rods 603. A support block 606 is fixedly connected to the telescopic end of the hydraulic rod 604. A locking block 605 is engaged on the support block 606. The locking block 605 is engaged with the support block 606. Inside, because the engagement point between the locking block 605 and the support block 606 is designed with an angled structure, when the two are engaged, the fiber sponge bonded to the inner wall of the locking block 605 and the rubber pad bonded to the inner wall of the support block 606 will contact the surface of the flexible shaft. Since both are made of elastic materials, this prevents surface wear caused by fixing and limiting the flexible shaft. The inner wall of the support block 606 corresponding to the locking block 605 is designed with an arc-shaped structure, and support rods 602 are fixedly connected to both sides of the fixing rod 603. A guide wheel 601 is rotatably mounted between the two support rods 602. The support rods 602 are inclined. The height of the guide wheel 601 is lower than the height of the support block 606. The guide wheel 601 is located at the end of the support rod 602 away from the collection hopper 4. One end of the pre-treated flexible shaft passes through the guide wheel 601 from above. The flexible shaft first contacts the guide wheel 601 on the support rod 602. The rotation of the guide wheel 601 is used to make smooth conveying, avoiding direct friction between the flexible shaft and the support rod 602, which would cause wear.

[0022] As a technical optimization of this utility model, the support mechanism 5 includes a bracket 501 and a stop block 503. Two brackets 501 are engaged and installed on the frame 1. The hopper 4 is located at the top of the bracket 501. The hopper 4 is engaged and connected to the bracket 501. The bottom end of the hopper 4 is fixed with a stop block 503. The protruding parts on both sides of the hopper 4 are slidably engaged with the bracket 501. When the stop block 503 fixed at the bottom end of the hopper 4 is in close contact with the side wall of one of the brackets 501, the hopper 4 can be installed. Two stops 502 are symmetrically fixed and connected to the frame 1 about the bracket 501. The bracket 501 is engaged between the two stops 502 of the frame 1. The stops 502 block the bracket 501, so that the bracket 501 cannot move during the flexible shaft heat melting process. The bracket 501 and the stops 502 are both located at the end of the frame 1 near the high-frequency induction coil 3.

[0023] In use, this invention first involves engaging the card holder 501 between the two stops 502 of the frame 1. The stops 502 block the card holder 501, preventing it from shifting during the hot-melting of the flexible shaft. Then, the protruding parts on both sides of the collecting hopper 4 are slidably engaged into the card holder 501. When the abutment 503 fixed at the bottom of the collecting hopper 4 is in close contact with the side wall of one of the card holders 501, the collecting hopper 4 is installed. At this time, the high-frequency induction coil 3 is located at the center of the top of the collecting hopper 4, facilitating subsequent hot-melting of the flexible shaft. Oil stains, dust, and other impurities on the surface of the flexible shaft to be processed are cleaned with tools to prevent impurities from affecting the bonding effect during hot-melting. Next, one end of the pre-treated flexible shaft is passed over the guide wheel 601. The flexible shaft first contacts the guide wheel 601 on the support rod 602, and the rotation of the guide wheel 601 provides smooth transport, avoiding direct friction between the flexible shaft and the support rod 602 that could cause wear. The flexible shaft is then pushed through the support block 6. 06. Continue heating until the part of the flexible shaft to be melted is aligned with the center of the high-frequency induction coil 3. Then, snap the locking block 605 into the inside of the support block 606. Since the part where the locking block 605 and the support block 606 are locked together is set with an inclined structure, when the two are locked together, the fiber sponge bonded to the inner wall of the locking block 605 and the rubber pad bonded to the inner wall of the support block 606 will contact the surface of the flexible shaft. Since both are made of elastic material, they can prevent the surface of the flexible shaft from being worn when it is fixed and limited. According to the material of the flexible shaft, set the parameters through the control panel of the high-frequency induction heating machine 2 and press the start button of the high-frequency induction heating machine 2. The high-frequency induction coil 3 generates an alternating magnetic field to heat the part of the flexible shaft to be melted. During the heating process, observe the state of the flexible shaft. When the outer layer material begins to melt and shows uniform fluidity, hold for the set time to complete the melting. At the same time, the debris and waste generated by the melting will fall naturally into the collection hopper 4, which can prevent the debris from scattering.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A soft shaft automatic hot melt device comprising a frame (1), characterized in that: A high-frequency induction heater (2) is installed inside the frame (1). A high-frequency induction coil (3) is electrically connected to the high-frequency induction heater (2). A support mechanism (5) is installed at one end of the frame (1) near the high-frequency induction coil (3). A hopper (4) is engaged inside the support mechanism (5). A guide mechanism (6) is fixed on the hopper (4). The guide mechanism (6) includes a fixed rod (603) and a hydraulic rod (604). Fixed rods (603) are fixedly connected to both ends of the hopper (4). A hydraulic rod (604) is fixedly installed inside the fixed rod (603). A support block (606) is fixedly connected to the telescopic end of the hydraulic rod (604). A locking block (605) is engaged on the support block (606). Support rods (602) are fixedly connected to both sides of the fixed rod (603). A guide wheel (601) is rotatably installed between the two support rods (602).

2. A soft shaft automatic hot melt device according to claim 1, characterized in that: The part where the locking block (605) engages with the support block (606) is set with an inclined structure, and the inner wall of the support block (606) corresponding to the locking block (605) is set with an arc structure.

3. A soft shaft automatic hot melt apparatus according to claim 1, characterized in that: The high-frequency induction coil (3) is located at the center of the top of the hopper (4), and the hopper (4) is arranged in an isosceles trapezoidal structure.

4. A soft shaft automatic hot melt apparatus according to claim 1, characterized in that: The lengths of the locking block (605) and the support block (606) are greater than the length of the fixing rod (603), and the support rod (602) is inclined.

5. The automatic hot-melt device for flexible shafts according to claim 1, characterized in that: The height of the guide wheel (601) is lower than the height of the support block (606), and the guide wheel (601) is located at the end of the support rod (602) away from the collection hopper (4).

6. A soft shaft automatic hot melt apparatus according to claim 1, characterized in that: The support mechanism (5) includes a card holder (501) and a stop block (503). Two card holders (501) are engaged and installed on the frame (1). The hopper (4) is engaged and connected with the card holders (501). A stop block (503) is fixed at the bottom of the hopper (4). The stop block (503) is in contact with one card holder (501).

7. A soft shaft automatic hot melt apparatus according to claim 6, characterized in that: The support mechanism (5) also includes a stop block (502). The frame (1) is symmetrically fixedly connected with two stop blocks (502) about the card holder (501). The card holder (501) is located between the two stop blocks (502).

8. A soft shaft automatic hot melt apparatus according to claim 6, characterized in that: The card holder (501) and the stop block (502) are both located at one end of the frame (1) near the high-frequency induction coil (3), and the hopper (4) is located at the top of the card holder (501).

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