A yarn tension device for a foam cutting machine

Abstract

The utility model discloses a kind of wire adjusting devices of foam cutting machine, including portal frame, heating wire, lifting motor, synchronous belt, wire adjusting assembly and positioning assembly, multiple heating wires are equipped with on the portal frame along transverse direction, the two sides of the heating wire and portal frame are movably connected, each side of the two sides of the portal frame is equipped with a wire adjusting assembly, the lifting motor is set in the top of both ends of portal frame, and is driven connection by synchronous belt pulley and synchronous belt, the wire adjusting assembly is set on synchronous belt, each side of the two sides of the portal frame is equipped with a positioning assembly. The utility model can adjust and fix the position of heating wire by the cooperation of wire adjusting assembly and positioning assembly, prevent its displacement in longitudinal direction, to ensure the cutting thickness precision of foam, and heating wire will not be broken by excessive wear, extend the service life of heating wire.

Description

Technical Field

[0001] This utility model relates to the field of foam cutting technology, and in particular to a wire adjusting device for a foam cutting machine. Background Technology

[0002] A foam cutting machine is a device used to cut polystyrene foam and similar materials. It can cut long foam boards or cut large foam blocks / boards into several smaller pieces / boards.

[0003] The applicant previously applied for a utility model patent for a foam cutting machine (authorization announcement number: CN221475497U). When adjusting the position of the heating wire, the foam cutting machine uses a wire cutting motor to drive the wire adjusting drive cylinder to lift the wire hanging slider above the wire separating claw upwards. When the lifting height reaches the set cutting interval, the wire adjusting drive cylinder retracts the wire separating claw and abuts against the bottom of the overlap part of the previous wire hanging slider to continue lifting and adjusting the wire. In this way, the wire hanging sliders can be assigned to the designated positions one by one.

[0004] After the wire is adjusted, the heating wire is tensioned by a triangular tensioning post set opposite the conductive copper rod. However, the contact area between the heating wire and the end of the triangular tensioning post is small, and problems such as bending and wear are prone to occur at the tensioning point. After long-term use, the heating wire is prone to breakage, which shortens the service life of the heating wire.

[0005] Therefore, it is necessary to design a new type of wire adjusting device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a wire adjusting device for a foam cutting machine, in order to solve the problem that the existing wire adjusting devices for foam cutting machines are prone to causing the heating wire to break and shortening its service life.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A wire adjusting device for a foam cutting machine includes a gantry frame, heating wires, a lifting motor, a synchronous belt, wire adjusting components, and a positioning component. Multiple heating wires are arranged horizontally along the gantry frame, and the heating wires are movably connected to both sides of the gantry frame. A wire adjusting component is provided on each side of the gantry frame. The lifting motor is located at the top of both ends of the gantry frame and is connected to the synchronous belt via synchronous pulleys. The wire adjusting components are mounted on the synchronous belt. A positioning component is provided on each side of the gantry frame.

[0009] Furthermore, the wire adjusting assembly includes a clamping plate, a wire adjusting cylinder, and a wire adjusting block. The clamping plate is fixed to the timing belt by bolts, the wire adjusting cylinder is located on one side of the clamping plate, and the wire adjusting block is located at the front end of the wire adjusting cylinder.

[0010] Furthermore, a slide bar is provided longitudinally on one side of the synchronous belt, and multiple sliders are slidably sleeved on the slide bar. Each slider is connected to the end of the heating wire by a spring.

[0011] Furthermore, the positioning assembly includes a positioning cylinder, a positioning plate, a conductive light rod, and a conductive positioning rod. The positioning cylinder is fixedly installed at the upper and lower ends on both sides of the gantry frame. The positioning plate is longitudinally installed on both sides of the gantry frame. The conductive light rod is installed on one side of the positioning plate, and the conductive positioning rods are spaced apart on one side of the conductive light rod.

[0012] Furthermore, the surface of the conductive positioning rod is densely covered with multiple annular positioning grooves along the axial direction, and the inner diameter of the annular positioning grooves matches the outer diameter of the heating wire.

[0013] Furthermore, a set of insulating plates are provided opposite to each other on the positioning plate on the upper side of the conductive optical rod and on the gantry frame on the upper side of the conductive positioning rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention, through the cooperation of the wire adjustment component and the positioning component, can adjust and fix the position of the heating wire, preventing it from shifting longitudinally, thus ensuring accurate cutting thickness of the foam and preventing excessive wear and breakage of the heating wire, thereby extending the service life of the heating wire. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 for Figure 1 Enlarged view of the local structure at point A;

[0019] Figure 3 This is a partial structural side view of the present invention;

[0020] Figure 4 for Figure 3 Enlarged view of the local structure at point B;

[0021] Figure 5 This is a partial structural side view of the positioning component in this utility model.

[0022] Figure label:

[0023] 10-Gantry frame, 20-Heating wire, 30-Lifting motor, 40-Synchronous belt, 50-Wire adjusting assembly, 51-Clamping plate, 52-Wire adjusting cylinder, 53-Wire adjusting block, 54-Slide rod, 55-Slider, 56-Spring, 60-Positioning assembly, 61-Positioning cylinder, 62-Positioning plate, 63-Conductive light rod, 64-Conductive positioning rod, 65-Annular positioning groove, 70-Synchronous belt pulley, 80-Insulating plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0027] In the description of the embodiments, unless otherwise expressly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or a connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] like Figure 1 As shown, the wire adjusting device of the foam cutting machine in this embodiment includes a gantry frame 10, heating wires 20, a lifting motor 30, a synchronous belt 40, a wire adjusting assembly 50, and a positioning assembly 60. Multiple heating wires 20 are arranged horizontally on the gantry frame 10, and each heating wire 20 is movably connected to both sides of the gantry frame 10. A wire adjusting assembly 50 is provided on each side of the gantry frame 10. The lifting motor 30 is located at the top of both ends of the gantry frame 10 and is connected to the synchronous belt 40 through a synchronous pulley 70. The wire adjusting assembly 50 is located on the synchronous belt 40. A positioning assembly 60 is provided on each side of the gantry frame 10.

[0029] like Figure 2As shown, the wire adjusting assembly 50 includes a clamping plate 51, a wire adjusting cylinder 52, and a wire adjusting block 53. The clamping plate 51 is fixed to the timing belt 40 by bolts. The wire adjusting cylinder 52 is located on one side of the clamping plate 51, and the wire adjusting block 53 is located at the front end of the wire adjusting cylinder 52.

[0030] A slide bar 54 is longitudinally mounted on one side of the synchronous belt 40. Multiple sliders 55 are slidably mounted on the slide bar 54. Each slider 55 is connected to the end of the heating wire 20 via a spring 56. The spring 56 positions the slider 55. During wire adjustment, the wire adjustment assembly 50 can drive the slider 55 to move up and down along the slide bar 54. After wire adjustment is completed, the tension of the spring 56 causes friction between the slider 55 and the slide bar 54, thus preventing the slider 55 and the heating wire 20 from sliding down the slide bar 54.

[0031] The lifting motors 30 on both sides drive the synchronous belt 40 to rotate, which in turn drives the wire adjusting components 50 on both sides to perform synchronous lifting and lowering actions. During wire adjustment, the synchronous belt 40 drives the wire adjusting components 50 to move above the top slider 55, the wire adjusting cylinder 52 extends the wire adjusting block 53, and then the synchronous belt 40 drives the wire adjusting components 50 to move downward, moving all sliders 55 to the specified height.

[0032] Then the adjusting block 53 retracts, and the timing belt 40 drives the adjusting component 50 to move between the two bottom sliders 55. Then the adjusting cylinder 52 extends the adjusting block 53 again and inserts it between the two sliders 55. The timing belt 40 drives the adjusting component 50 to move upward, so that all the upper sliders 55 move upward and create a gap with the bottom slider 55. This gap is the cutting thickness of the foam.

[0033] The other sliders 55 are adjusted in the same way as described above, until all sliders 55 and heating wires 20 have completed the spacing adjustment.

[0034] like Figure 3 As shown, the positioning assembly 60 includes a positioning cylinder 61, a positioning plate 62, a conductive light rod 63, and a conductive positioning rod 64. The positioning cylinder 62 is fixedly installed at the upper and lower ends on both sides of the gantry frame 10. The positioning plate 62 is installed longitudinally on both sides of the gantry frame 10. The conductive light rod 63 is installed on one side of the positioning plate 62, and the conductive positioning rod 64 is spaced apart on one side of the conductive light rod 63.

[0035] Both the conductive light rod 63 and the conductive positioning rod 64 can be made of highly conductive materials such as copper rods. On the one hand, they can position the heating wire 20, and on the other hand, they can also act as conductors to supply power to the heating wire 20.

[0036] An insulating plate 80 is provided on the positioning plate 62 on the upper side of the conductive light rod 63 and on the gantry frame 10 on the upper side of the conductive positioning rod 64.

[0037] Since the gantry frame 10 is equipped with several heating wires 20, and the actual number of heating wires 20 required in production varies, some unused heating wires 20 can be moved to the space between the insulating plates 80 on both sides. When the other heating wires 20 are energized, the heating wires 20 located between the insulating plates 80 are not energized. This saves energy and reduces the wear and tear on the heating wires 20, thereby extending their service life.

[0038] like Figure 4 As shown, the surface of the conductive positioning rod 64 is densely covered with multiple annular positioning grooves 65 along the axial direction. The inner diameter of the annular positioning groove 65 matches the outer diameter of the heating wire 20. The two dimensions can be equal, or the inner diameter of the annular positioning groove 65 can be slightly smaller than the outer diameter of the heating wire 20.

[0039] During positioning, the positioning cylinder 61 drives the positioning plate 62 and the conductive light rod 63 to move towards the conductive positioning rod 64, so that the conductive light rod 63 is close to the conductive positioning rod 64 and presses the heating wire 20 into the annular positioning groove 65, thereby achieving the positioning of the heating wire 20.

[0040] like Figure 5 As shown, compared with the original triangular tensioning column tensioning method, the contact area between the heating wire 20 and the conductive light rod 63 and the conductive positioning rod 64 is larger, and the heating wire 20 is curved, which reduces the damage to the heating wire 20 and thus extends the service life of the heating wire 20.

[0041] It should be noted that the structures not specifically described in this embodiment still employ existing technologies. The synchronous drive methods of the lifting motors 30 and positioning cylinders 61 on both sides also employ existing technologies. For example, the lifting motors 30 can be synchronized using frequency converters: the motor speed is controlled by adjusting the output frequency of the two frequency converters, and proportional speed regulation can be achieved using potentiometers or regulated power supplies; or a servo driver can be used for control: parameters such as the synchronization accuracy and speed loop gain of the servo driver are set to achieve synchronous operation of the two motors. The positioning cylinders 61 can be controlled using a PLC or a dedicated controller, with the flow and pressure of each cylinder independently adjusted through proportional valves / servo valves; or through a sensor feedback mechanism: displacement sensors (such as magnetostrictive type) are installed to monitor the piston position in real time, and the valve opening is dynamically adjusted through a PID algorithm to compensate for mechanical errors. In short, these are all common knowledge in the field and will not be elaborated further here.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

Claims

1. A yarn conditioning device for a foam cutting machine, characterized in that: The device includes a gantry frame, heating wires, a lifting motor, a synchronous belt, a wire adjusting assembly, and a positioning assembly. The gantry frame has multiple heating wires arranged horizontally along its sides. The heating wires are movably connected to both sides of the gantry frame. Each side of the gantry frame has a wire adjusting assembly. The lifting motor is located at the top of both ends of the gantry frame and is connected to the synchronous belt via synchronous pulleys. The wire adjusting assembly is located on the synchronous belt. Each side of the gantry frame has a positioning assembly.

2. A foam cutting machine's thread conditioning device according to claim 1, characterized in that: The wire adjusting assembly includes a clamping plate, a wire adjusting cylinder, and a wire adjusting block. The clamping plate is fixed to the timing belt by bolts, the wire adjusting cylinder is located on one side of the clamping plate, and the wire adjusting block is located at the front end of the wire adjusting cylinder.

3. The means for sizing the filament of a foam cutting machine of claim 1 wherein: A slide bar is provided longitudinally on one side of the synchronous belt, and multiple sliders are slidably sleeved on the slide bar. Each slider is connected to the end of the heating wire by a spring.

4. The means for sizing the filament of a foam cutting machine of claim 1 wherein: The positioning assembly includes a positioning cylinder, a positioning plate, a conductive light rod, and a conductive positioning rod. The positioning cylinder is fixedly installed at the upper and lower ends on both sides of the gantry frame. The positioning plate is longitudinally installed on both sides of the gantry frame. The conductive light rod is installed on one side of the positioning plate, and the conductive positioning rods are spaced apart on one side of the conductive light rod.

5. A foam cutting machine's thread conditioning device according to claim 4, characterized in that: The conductive positioning rod has multiple annular positioning grooves densely distributed along the axial direction on its surface, and the inner diameter of the annular positioning grooves matches the outer diameter of the heating wire.

6. The wire adjusting device of the foam cutting machine according to claim 4, characterized in that: An insulating plate is provided on the positioning plate on the upper side of the conductive optical rod and on the gantry frame on the upper side of the conductive positioning rod.

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