Electric heating wire spacing adjusting device for polystyrene board cutting

Abstract

The utility model provides a kind of electric heating wire spacing adjusting device of polystyrene board cutting, including rectangular tube, two telescopic rods are respectively inserted in two rectangular tubes, multiple groups of wire cutting parts are installed between two guide rods, both sides of the length direction of stud along perforation are equipped with first nut, first nut is connected with stud thread, stud is arranged along the length direction of rectangular tube, one end of stud is connected with telescopic rod, stud one end is connected and fixed with threaded head, the side of stud away from threaded head is equipped with threaded blind hole, the threaded head on one stud is connected in the threaded blind hole on another stud thread, the utility model has the beneficial effects as follows: reduce stud exposed area, reduce polystyrene board cutting dust, humidity erosion to stud, avoid threaded rust adhesion, ensure the smoothness of long-term adjustment, simultaneously without separately designing super-long stud for adapting large spacing, reduce material waste.

Description

Technical Field

[0001] This utility model is a heating wire spacing adjustment device for cutting polystyrene boards, belonging to the field of polystyrene board production technology. Background Technology

[0002] In the heating wire spacing adjustment structure of polystyrene board cutting equipment, the guide rod spacing adjustment is the core link in achieving heating wire tension control. One guide rod is fixed inside two rectangular tubes, and the other guide rod is assembled on two sets of telescopic rods. By inserting the telescopic rods into the rectangular tubes, the overall length of the combined structure can be changed, thereby adjusting the spacing between the two guide rods and thus the heating wire tension. Currently, this structure mainly relies on the cooperation of studs and nuts to limit the relative position of the rectangular tubes and telescopic rods to achieve stepless adjustment of the guide rod spacing. It also incorporates some screw-based limiting designs, but both limiting methods have revealed significant shortcomings in practical applications.

[0003] From the perspective of the limiting method of studs and nuts, in order to accommodate the large spacing adjustment range of the guide rods, the studs need to be designed with a relatively long dimension. However, when the spacing of the guide rods is small, most of the studs will be exposed, with only a small portion participating in the limiting and fixing. Long-term exposure to dust generated from polystyrene board cutting, moisture or corrosive substances in the cutting environment can easily cause the exposed stud surface to rust, leading to thread adhesion and jamming, affecting the smoothness of subsequent spacing adjustment operations.

[0004] Looking at the screw-based positioning method, it primarily relies on the static friction between the screw and the contact surface to achieve relative fixation between the rectangular tube and the telescopic rod. However, during the polystyrene board cutting process, the equipment operation generates slight vibrations, and the heating wire experiences a reaction force from the material during cutting. These external forces can easily exceed the static friction limit of the screw, causing slight displacement of the rectangular tube and the telescopic rod. This displacement directly changes the spacing of the guide rods, leading to fluctuations in the tension of the heating wire. Excessive tension results in a deviation in the cutting trajectory, leading to uneven polystyrene board cut surfaces and increased burrs; excessive tension, on the other hand, may increase the load on the heating wire, accelerating wire aging and breakage, while also affecting the connection stability between the guide rod and the telescopic rod, creating a vicious cycle and severely reducing the accuracy and efficiency of polystyrene board cutting. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a heating wire spacing adjustment device for cutting polystyrene boards, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heating wire spacing adjustment device for cutting polystyrene boards, comprising: Two rectangular tubes are provided, and the two rectangular tubes are arranged parallel to each other. Each of the two rectangular tubes has a lug installed on its opposite side, and a through hole is opened on one side of the lug. Two telescopic rods are provided, and the two telescopic rods are respectively inserted into two rectangular tubes; Two guide rods are provided. One guide rod is connected to two telescopic rods, and the other guide rod is connected to two rectangular tubes. Multiple sets of wire cutting parts are installed between the two guide rods. A stud has a through hole, and a first nut is provided on both sides of the through hole along the length of the stud. The first nut is threadedly connected to the stud. The stud is arranged along the length of the rectangular tube. One end of the stud is connected to the telescopic rod. A threaded head is fixedly connected to one end of the stud. A threaded blind hole is opened on the side of the stud away from the threaded head. The threaded head on one stud is threadedly connected to the threaded blind hole on another stud.

[0007] Furthermore, the wire cutting component includes a heating wire, and multiple heating wires are provided between the two guide rods. Both ends of the heating wire are connected and fixed with a sliding sleeve. The sliding sleeves at both ends of the heating wire are respectively sleeved on the two guide rods. The outer surface of the sliding sleeve is threaded with a first screw for limiting the relative position between the sliding sleeve and the guide rod.

[0008] Furthermore, a first threaded sleeve is installed on the outer surface of the sliding sleeve, and the first screw is threadedly connected inside the first threaded sleeve.

[0009] Furthermore, a rectangular sleeve is installed at one end of the rectangular tube and at the end of the telescopic rod outside the rectangular tube. The rectangular sleeve is fitted onto the end of the guide rod, and a second screw for limiting the relative position between the rectangular sleeve and the guide rod is threaded onto the outer surface of the rectangular sleeve.

[0010] Furthermore, a second threaded sleeve is installed on the outer surface of the rectangular sleeve, and the second screw is threadedly connected inside the second threaded sleeve.

[0011] Furthermore, a connecting lug is installed at one end of the telescopic rod on the outside of the rectangular tube. The connecting lug is parallel to the support lug. A small hole is opened on one side of the connecting lug, which is aligned with the through hole. A threaded end on a stud passes through the small hole and is threadedly connected to a second nut. The inner diameter of the small hole is smaller than the outer diameter of the stud.

[0012] Furthermore, a connecting arm is fixedly connected to the end of the rectangular tube away from the telescopic rod, and a circular hole for inserting a bolt is provided on one side of the connecting arm.

[0013] Furthermore, a protrusion is fixedly connected to the upper end of the connecting arm, and the cross-sectional area of ​​the protrusion is larger than the cross-sectional area of ​​the connecting arm.

[0014] The beneficial effects of this utility model are: When the guide rod spacing is small, only a single stud is needed or the connection length of two studs is shortened, avoiding the large amount of exposure caused by traditional long studs due to small spacing. When the spacing increases, the threaded head of another stud is screwed into the threaded blind hole to extend the overall stud length. There is no need to replace the long stud with an additional one. The two studs are detachably connected through the "threaded head-threaded blind hole". The stud combination length can be adjusted according to the actual spacing requirements of the guide rods. This design greatly reduces the exposed area of ​​the studs, reduces the corrosion of the studs by polystyrene board cutting dust and moisture, avoids thread corrosion and adhesion, and ensures smooth adjustment over a long period of time. At the same time, there is no need to design extra-long studs separately to adapt to large spacing, reducing material waste. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a heating wire spacing adjustment device for cutting polystyrene board according to the present invention. Figure 2 This is a perspective view of a heating wire spacing adjustment device for cutting polystyrene boards according to this utility model. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is an exploded structural diagram of the stud, telescopic rod, and rectangular tube in a polystyrene board cutting heating wire spacing adjustment device of this utility model; In the picture: 1. Rectangular tube; 11. Connecting arm; 12. Round hole; 13. Protrusion; 14. Support lug; 15. Perforation; 2. Guide rod; 21. Sliding sleeve; 22. First screw; 23. First threaded sleeve; 24. Rectangular sleeve; 25. Second screw; 26. Second threaded sleeve; 3. Telescopic rod; 31. Connecting lug; 32. Small hole; 4. Heating wire; 5. Stud; 51. First nut; 52. Threaded head; 53. Second nut; 54. Threaded blind hole. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] Please see Figure 1 , Figure 2 and Figure 4This utility model provides a technical solution: a heating wire spacing adjustment device for polystyrene board cutting, comprising a rectangular tube 1, with two rectangular tubes 1 arranged parallel to each other; a connecting arm 11 is fixedly connected to the end of the rectangular tube 1 away from the telescopic rod 3, and a circular hole 12 for inserting bolts is opened on one side of the connecting arm 11; a protrusion 13 is fixedly connected to the upper end of the connecting arm 11, and the cross-sectional area of ​​the protrusion 13 is larger than the cross-sectional area of ​​the connecting arm 11. The connecting arm 11 at the end of the rectangular tube 1 is bolted to an external device (such as a cutting machine frame) through the circular hole 12, realizing a stable assembly of the rectangular tube 1 and the whole machine; the protrusion 13 can prevent the cutting machine frame connected to the connecting arm 11 from separating from the connecting arm 11, ensuring overall stability during cutting operations, and further ensuring the adjustment accuracy and cutting effect of the heating wire spacing 4.

[0018] See Figures 1-4 Each of the two rectangular tubes 1 has a lug 14 installed on its back side, and a through hole 15 is opened on one side of the lug 14. Two telescopic rods 3 are provided, and the two telescopic rods 3 are respectively inserted into the two rectangular tubes 1. Two guide rods 2 are provided, one guide rod 2 is connected to the two telescopic rods 3, and the other guide rod 2 is connected to the two rectangular tubes 1. A rectangular sleeve 24 is installed at one end of the rectangular tube 1 and the end of the telescopic rod 3 outside the rectangular tube 1. The rectangular sleeve 24 is fitted onto the end of the guide rod 2. A second screw 25 is threaded on the outer surface of the rectangular sleeve 24 to limit the relative position of the rectangular sleeve 24 and the guide rod 2. A second threaded sleeve 26 is installed on the outer surface of the rectangular sleeve 24. The second screw 25 is threaded into the second threaded sleeve 26. The second threaded sleeve 26 can increase the thickness of the rectangular sleeve 24 where the second screw 25 is installed, so as to prevent the rectangular sleeve 24 from deforming due to the force of tightening the second screw 25, and ensure that the second screw 25 can stably press against the guide rod 2 and maintain the relative position of the guide rod 2 and the rectangular sleeve 24.

[0019] See Figure 1 and Figure 2 Multiple heating wires 4 are arranged between two guide rods 2. Each end of a heating wire 4 is connected and fixed with a sliding sleeve 21, which is respectively fitted onto the two guide rods 2. A first screw 22 is threaded onto the outer surface of the sliding sleeve 21 to limit the relative position between the sliding sleeve 21 and the guide rod 2. A first threaded sleeve 23 is installed on the outer surface of the sliding sleeve 21, allowing the first screw 22 to be threaded into the first threaded sleeve 23, thus achieving a stable connection between the first screw 22 and the sliding sleeve 21. The heating wires 4 are fitted onto the guide rods 2 via the sliding sleeves 21. Sliding the sliding sleeves 21 adjusts the spacing between adjacent heating wires 4, adapting to the cutting requirements of polystyrene boards of different thicknesses and sizes. The first screw 22, through the first threaded sleeve 23, tightens against the guide rod 2, firmly fixing the sliding sleeve 21 in the target position and preventing the sliding sleeve 21 from sliding during cutting, which could cause the spacing of the heating wires 4 to shift.

[0020] See Figures 1-4The stud 5 passes through the through hole 15. A first nut 51 is provided on both sides of the through hole 15 along the length of the stud 5. The first nut 51 is threadedly connected to the stud 5. The stud 5 is arranged along the length of the rectangular tube 1. A threaded head 52 is fixedly connected to one end of the stud 5. A threaded blind hole 54 is opened on the side of the stud 5 away from the threaded head 52. The threaded head 52 on one stud 5 is threadedly connected to the threaded blind hole 54 on another stud 5. A connecting ear 31 is installed on the end of the telescopic rod 3 outside the rectangular tube 1. The connecting ear 31 is parallel to the support ear 14. A small hole 32 is opened on one side of the connecting ear 31, which is aligned with the through hole 15. The inner diameter of the small hole 32 is smaller than the outer diameter of the stud 5, so that the threaded head 52 on one stud 5 passes through the small hole 32 and is threadedly connected to the second nut 53, thus completing the connection between one stud 5 and the telescopic rod 3.

[0021] When the spacing between guide rods 2 is small, only a single stud 5 needs to be used, or the connection length of two studs 5 can be shortened, avoiding the large amount of exposure caused by traditional long studs due to small spacing. When the spacing increases, the threaded head 52 of another stud 5 is screwed into the threaded blind hole 54, extending the overall length of the stud 5. There is no need to replace the long stud with an additional one. The two studs 5 are detachably connected through the "threaded head 52-threaded blind hole 54", and the combined length of the studs 5 can be adjusted according to the actual spacing requirements of the guide rods 2. This design significantly reduces the exposed area of ​​the studs 5, reduces the corrosion of the studs 5 by polystyrene board cutting dust and moisture, avoids thread corrosion and adhesion, ensures smooth long-term adjustment, and eliminates the need to design extra-long studs to accommodate large spacing, reducing material waste.

[0022] After the stud 5 passes through the through hole 15 of the lug 14, the first nut 51 is installed on both sides of the through hole 15. The stud 5 and the lug 14 are rigidly fixed by bidirectional tightening, which replaces the limiting method of traditional screws. The bidirectional force can counteract the loosening tendency caused by the vibration of the equipment and the reaction force of the heating wire 4 during polystyrene board cutting, avoid relative displacement between the rectangular tube 1 and the telescopic rod 3, ensure the stability of the guide rod 2 spacing, and thus maintain the constant tension of the heating wire 4. This solves the problem that traditional screws rely on static friction and are prone to displacement, which leads to a decrease in cutting accuracy.

[0023] 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. 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 device for adjusting the spacing of heating wires in polystyrene board cutting, characterized in that, include: Two rectangular tubes (1) are provided, and the two rectangular tubes (1) are arranged in parallel to each other. Support ears (14) are installed on the opposite sides of the two rectangular tubes (1). A through hole (15) is opened on one side of the support ear (14). Two telescopic rods (3) are provided, and the two telescopic rods (3) are respectively inserted into two rectangular tubes (1); Two guide rods (2) are provided. One guide rod (2) is connected to two telescopic rods (3), and the other guide rod (2) is connected to two rectangular tubes (1). Multiple sets of wire cutting parts are installed between the two guide rods (2). A stud (5) has a through hole (15). The through hole (15) has a first nut (51) on both sides along the length of the stud (5). The first nut (51) is threaded to the stud (5). The stud (5) is arranged along the length of the rectangular tube (1). One end of the stud (5) is connected to the telescopic rod (3). One end of the stud (5) is connected to a threaded head (52). A threaded blind hole (54) is opened on the side of the stud (5) away from the threaded head (52). The threaded head (52) on one stud (5) is threaded into the threaded blind hole (54) on another stud (5).

2. The heating wire spacing adjustment device for cutting polystyrene board according to claim 1, characterized in that: The wire cutting component includes a heating wire (4), and multiple heating wires (4) are provided between the two guide rods (2). Both ends of the heating wire (4) are connected and fixed with a sliding sleeve (21). The sliding sleeves (21) at both ends of the heating wire (4) are respectively sleeved on the two guide rods (2). The outer surface of the sliding sleeve (21) is threaded with a first screw (22) for limiting the relative position of the sliding sleeve (21) and the guide rod (2).

3. The heating wire spacing adjustment device for cutting polystyrene board according to claim 2, characterized in that: The outer surface of the sliding sleeve (21) is fitted with a first threaded sleeve (23), and the first screw (22) is threadedly connected inside the first threaded sleeve (23).

4. The heating wire spacing adjustment device for cutting polystyrene board according to claim 2, characterized in that: A rectangular sleeve (24) is installed at one end of the rectangular tube (1) and at the end of the telescopic rod (3) located outside the rectangular tube (1). The rectangular sleeve (24) is fitted onto the end of the guide rod (2). A second screw (25) is threaded onto the outer surface of the rectangular sleeve (24) to limit the relative position of the rectangular sleeve (24) and the guide rod (2).

5. The heating wire spacing adjustment device for cutting polystyrene board according to claim 4, characterized in that: The outer surface of the rectangular sleeve (24) is fitted with a second threaded sleeve (26), and the second screw (25) is threaded into the second threaded sleeve (26).

6. The heating wire spacing adjustment device for cutting polystyrene board according to claim 1, characterized in that: The telescopic rod (3) is equipped with a connecting ear (31) at one end outside the rectangular tube (1). The connecting ear (31) is parallel to the support ear (14). One side of the connecting ear (31) has a small hole (32) aligned with the through hole (15). A threaded head (52) on a stud (5) passes through the small hole (32) and is threadedly connected to a second nut (53). The inner diameter of the small hole (32) is smaller than the outer diameter of the stud (5).

7. The heating wire spacing adjustment device for cutting polystyrene board according to claim 1, characterized in that: The rectangular tube (1) is connected to a connecting arm (11) at one end away from the telescopic rod (3), and a round hole (12) for inserting bolts is provided on one side of the connecting arm (11).

8. The heating wire spacing adjustment device for cutting polystyrene board according to claim 7, characterized in that: The upper end of the connecting arm (11) is connected and fixed with a protrusion (13), and the cross-sectional area of ​​the protrusion (13) is greater than the cross-sectional area of ​​the connecting arm (11).

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