hot bender

Abstract

This utility model discloses a hot bending machine, including a frame and a heating mechanism. The frame is equipped with a sliding component and employs multiple heating mechanisms arranged parallel to each other. The heating mechanisms are connected to the sliding component. When changing the position of the heating mechanism, it is only necessary to push or pull the heating mechanism to make it reciprocate through the sliding component, thereby adjusting the position of the heating mechanism. This changes the existing adjustment method, simplifies the operation steps, and improves the production efficiency of the hot bending machine. At the same time, the height of the heating element can be adjusted by raising and lowering the lifting adjustment component to adjust the distance between the heating element and the acrylic sheet, thereby adjusting the rate of thermoplastic deformation of the acrylic sheet.

Description

Technical Field

[0001] This utility model relates to the field of acrylic processing equipment, and in particular to a hot bending machine. Background Technology

[0002] In the processing of acrylic sheets, the sheets need to be bent and heat-treated using processing equipment, and finally hot-pressed into shape. Existing hot bending machines typically use heaters to heat the acrylic sheets. Due to the requirements of the finished products, such as nameplates for conferences, a single acrylic sheet needs to be bent two or more times. This requires heating two or more positions on the acrylic sheet, and the spacing between the heating positions needs to be adjusted according to the size requirements of the finished product. Therefore, a hot bending machine is needed that can heat multiple positions on the acrylic sheet and adjust the distance between the heating positions. Utility Model Content

[0003] This utility model aims to at least solve one of the technical problems existing in the prior art. To this end, an embodiment of this utility model proposes a hot bending machine, including a frame and a heating mechanism; a sliding assembly is mounted on the frame.

[0004] Multiple heating mechanisms are used, arranged parallel to each other, and connected to the sliding assembly, allowing the heating mechanism to slide along the sliding assembly. Each heating mechanism includes a heating element and a lifting adjustment assembly. The heating element is installed in the elongated groove, which is connected to the sliding assembly, allowing the elongated groove to move back and forth via the sliding assembly. Two sets of lifting adjustment assemblies are used, each set installed at one end of the elongated groove, with the heating element installed between the two sets. The lifting adjustment assembly is used to adjust the height of the heating element.

[0005] According to some embodiments of the present invention, the lifting adjustment assembly includes a lifting block, a lifting screw, and an adjusting nut. The lifting block is connected to the end of the heating element, the top end of the lifting screw is connected to the lifting block, and the adjusting nut is mounted on the lifting screw. Rotating the adjusting nut causes the lifting screw to move up and down.

[0006] According to some embodiments of the present invention, the lifting adjustment assembly further includes a fixed seat, which is fixed to the end of the long groove body, and the lifting screw is vertically inserted into the fixed seat; the fixed seat has a notch, the lifting screw passes through the notch, and a limiting nut is also installed on the lifting screw, the limiting nut is located in the notch, and the adjusting nut is located below the fixed seat.

[0007] According to some embodiments of this utility model, the heating element is a heating wire, a fixing bolt is horizontally inserted on the lifting block, the fixing bolt is used to fix and connect to the end of the heating element, a clamping nut is installed on the fixing bolt, and a spring is fitted on the fixing bolt, the spring being located between the clamping nut and the lifting block.

[0008] According to some embodiments of the present invention, the sliding assembly includes a slide rod and a slider. The two ends of the slide rod are equipped with bearing seats, which are fixed to the frame. The slider is slidably mounted on the slide rod and fixed to the bottom of the elongated groove.

[0009] According to some embodiments of the present invention, a fixing screw is vertically mounted on the bottom of the slider, and the top end of the fixing screw is used to abut against the slider.

[0010] According to some embodiments of the present invention, a water-cooling tank is also included, which is adjacent to the heating element and is arranged parallel to the heating element.

[0011] According to some embodiments of the present invention, a bending die is also included, which is rotatably mounted on the end of the frame, and the bending die and the heating mechanism are arranged parallel to each other.

[0012] According to some embodiments of this utility model, it further includes an indicator semicircular plate and an angle semicircular plate. The indicator semicircular plate is mounted on the end of the bending die, and the angle semicircular plate is fixed on the frame. While the bending die is rotated, the indicator semicircular plate rotates relative to the angle semicircular plate, and the angle semicircular plate displays the rotation angle of the bending die.

[0013] According to some embodiments of the present invention, the indicator semicircular plate is engraved with indicator lines, the indicator semicircular plate is bent with a support plate, and the support plate is fixed to the bottom of the bending mold;

[0014] The angle semicircular plate is engraved with scale marks indicating the angle and numerical marks indicating the angle value. An arc-shaped window is opened between the scale marks and the numerical marks, and the indicator lines are displayed through the arc-shaped window.

[0015] The present invention has at least the following beneficial effects:

[0016] 1. This hot bending machine employs multiple heating mechanisms arranged in parallel. These mechanisms are connected to sliding components. Changing the position of a heating mechanism is as simple as pushing or pulling it, causing it to reciprocate through the sliding components. This allows for adjustment of the position and spacing between the heating mechanisms to meet the processing and dimensional requirements of the finished product, simplifying operation and improving the machine's production efficiency. Simultaneously, the height of the heating element can be adjusted using the lifting and adjusting components to regulate the distance between the heating element and the acrylic sheet, thus adjusting the rate of plastic deformation of the acrylic sheet under heat.

[0017] 2. The acrylic sheet is cooled using a water-cooling tank to prevent other parts from being affected by high temperatures when the part to be bent is heated, thus ensuring the normal bending process.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model. Figure 1 ;

[0021] Figure 2 This is an overall schematic diagram of an embodiment of the present utility model. Figure 2 ;

[0022] Figure 3 for Figure 1 Enlarged diagram of A in the middle;

[0023] Figure 4 This is a top view schematic diagram of the heating mechanism according to an embodiment of the present utility model;

[0024] Figure 5 for Figure 4 Schematic diagram of the CC section;

[0025] Figure 6 This is a schematic diagram of the assembled water-cooled tank according to an embodiment of the present invention;

[0026] Figure 7 for Figure 6 Enlarged diagram of D in the middle;

[0027] Figure 8 for Figure 1 Enlarged diagram of B in the middle;

[0028] Figure 9 for Figure 1 A magnified diagram of the explosion state of B;

[0029] Figure 10 This is a schematic diagram of the acrylic sheet under heating state according to an embodiment of the present invention;

[0030] Figure 11 This is a schematic diagram of the acrylic sheet bending action according to an embodiment of the present invention. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, "more than" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0033] Reference Figure 1 , 2 A hot bending machine includes a frame 100 and a heating mechanism 300. A sliding assembly 200 is mounted on the frame 100. Multiple heating mechanisms 300 are arranged in parallel with each other and connected to the sliding assembly 200. The heating mechanism 300 is moved back and forth by the sliding assembly 200. The heating mechanism 300 includes a heating element 310 and a lifting adjustment assembly 320. The heating element 310 is installed in a long groove 330. The long groove 330 is connected to the sliding assembly 200, so that the heating mechanism 300 slides along the sliding assembly 200 to adjust the position of the long groove 330. Two sets of lifting adjustment assemblies 320 are used, and the two sets of lifting adjustment assemblies 320 are respectively installed at both ends of the long groove 330.

[0034] After being heated for a long time, the long groove 330 will deform. Therefore, a reinforcing rib 340 is installed at the bottom of the long groove 330 to prevent deformation. The reinforcing rib 340 can be adjusted according to the width of the long groove 330. If the width of the long groove 330 is shortened, the thickness of the reinforcing rib 340 is increased; if the width of the long groove 330 is increased, the thickness of the reinforcing rib 340 is decreased.

[0035] A heating element 310 is installed between the two sets of lifting and adjusting components 320, and the lifting and adjusting components 320 are used to adjust the height of the heating element 310.

[0036] This hot bending machine employs multiple heating mechanisms 300, which are arranged in parallel to each other. This allows for heating multiple parts of the acrylic sheet. Furthermore, the multiple heating mechanisms 300 can be used side-by-side to freely adjust the width of the heated area. Since the heating mechanisms 300 are connected to the sliding components 200, changing their positions according to the hot bending location is as simple as pushing or pulling the heating mechanism 300, causing it to reciprocate through the sliding components 200. This allows for adjustment of the position of the heating mechanisms and the spacing between them to meet the processing and dimensional requirements of the finished product, simplifying operation and improving the production efficiency of the hot bending machine.

[0037] Meanwhile, when the distance between the heating element 310 and the acrylic sheet decreases, the rate of heat-induced plastic deformation of the acrylic sheet increases; while when the distance between the heating element 310 and the acrylic sheet increases, the rate of heat-induced plastic deformation of the acrylic sheet decreases.

[0038] Therefore, the height of the heating element 310 can be adjusted by lifting and adjusting the component 320 to adjust the distance between the heating element 310 and the acrylic plate, and the adjustment is made according to the speed of the acrylic plate's plastic deformation under heat.

[0039] Reference Figure 4 , 5 The lifting adjustment assembly 320 includes a lifting block 321, a lifting screw 322, and an adjusting nut 323. The lifting block 321 is connected to the end of the heating element 310, and the top end of the lifting screw 322 is connected to the lifting block 321. The adjusting nut 323 is mounted on the lifting screw 322. By rotating the adjusting nut 323, the lifting screw 322 is moved up and down, thereby driving the lifting block 321 to move up and down, thereby changing the height of the heating element 310, that is, the distance between the heating element 310 and the acrylic plate.

[0040] Reference Figure 4 The lifting adjustment assembly 320 also includes a fixed base 324, which is fixed to the end of the long groove 330. The lifting screw 322 is vertically inserted into the fixed base 324. The fixed base 324 has a notch 301, through which the lifting screw 322 passes. The lifting screw 322 is also equipped with a limit nut 325, which is located inside the notch 301. The adjusting nut 323 is located below the fixed base 324.

[0041] During adjustment, first rotate the limit nut 325 to move it upward. Then, rotate the adjusting nut 323 to move the lifting screw 322 upward or downward, thereby increasing or decreasing the height of the heating element 310 accordingly. After adjusting to the desired height, rotate the limit nut 325 to move it downward, so that the limit nut 325 and the adjusting nut 323 clamp the fixing seat 324, thereby fixing the height of the heating element 310.

[0042] Reference Figure 4 In this embodiment, the heating element 310 uses a heating wire. The heating wire may become weak after being heated and cannot maintain a taut state, which will cause uneven heating of the pre-bent part of the acrylic sheet and affect the hot bending process.

[0043] For this purpose, a fixing bolt 326 is horizontally inserted into the lifting block 321. The fixing bolt 326 is used to fix and connect to the end of the heating element 310. A clamping nut 327 is installed on the fixing bolt 326. A spring 328 is fitted on the fixing bolt 326. The spring 328 is located between the clamping nut 327 and the lifting block 321.

[0044] In operation, the two ends of the heating wire are connected to the fixing bolts 326, and then the clamping nut 327 is rotated to move the two fixing bolts 326 to the outside of the lifting block 321, forming a pulling force on the heating wire by the fixing bolts 326, thus tightening the heating wire. When the heating wire is heating, it becomes weak after being heated, and the heating wire begins to pull the fixing bolts 326 to the inside of the lifting block 321. As the fixing bolts 326 move inward, the clamping nut 327 compresses the spring 328, so that the elastic force generated by the spring 328 acts on the clamping nut 327, causing the clamping nut 327 to be pushed outward by the spring 328, which in turn causes the fixing bolts 326 to pull the heating wire outward, keeping the heating wire taut at all times.

[0045] Reference Figure 1 , 2 In this embodiment, at least two sets of sliding components 200 are used, and the two sets of sliding components 200 are respectively installed at the bottom of both ends of the long groove 330.

[0046] Specifically, the sliding assembly 200 includes a slide rod 210 and a slider 220. The two ends of the slide rod 210 are equipped with bearing seats 230, which are fixed on the frame 100. The slider 220 is slidably mounted on the slide rod 210 and fixed to the bottom of the elongated groove 330.

[0047] When the heating mechanism 300 is pushed or pulled, the slider 220 slides on the slide bar 210, thereby causing the long groove 330 to reciprocate along the slide bar 210; thus, the position of the heating mechanism 300 is adjusted.

[0048] A fixing screw 240 is vertically mounted at the bottom of the slider 220. After the position of the heating mechanism 300 is adjusted to the correct position, the fixing screw 240 is rotated to make the top of the fixing screw 240 press against the slide bar 210, thereby fixing the position of the slider 220. When readjustment is required, simply loosen the fixing screw 240 to release the fixing screw 240 from pressing against the slide bar 210, so that the slider 220 can regain its ability to move.

[0049] Reference Figure 6 , 7 It is also provided with a water cooling tank 400, which is adjacent to the heating element 310 and is arranged in parallel with the heating element 310. In this embodiment, two water cooling tanks 400 can be used, and the heating element 310 is located between the two water cooling tanks 400.

[0050] In this embodiment, the top surface of the water-cooling tank 400 is on the same horizontal plane as the heating element 310, and the top surface of the water-cooling tank 400 may also be higher than the heating element 310.

[0051] During hot bending, the acrylic sheet to be bent is placed horizontally on the top surface of the water cooling tank 400 and the heating element 310, so that the heating element 310 is located below the preset bending part of the acrylic sheet. The heating element 310 starts heating, so that the preset bending part can undergo plastic deformation after being heated.

[0052] At the same time, the acrylic sheet is cooled by the water cooling tank 400 to prevent the rest of the sheet from being heated except for the pre-set bending part. The cooling effect of the water cooling tank 400 will prevent the bending process from being affected by high temperature.

[0053] Reference Figure 1 , 8 9. To facilitate bending operations, a bending die 500 is also included. The bending die 500 and the heating mechanism 300 are arranged parallel to each other. The bending die 500 is rotatably mounted on the end of the frame 100. In this embodiment, bending dies 500 are mounted on the wide end of the frame 100, so that two acrylic plates can be bent simultaneously by a single machine.

[0054] Reference Figure 10 , 11 When bending, the acrylic sheet is placed on the heating mechanism 300. At this time, the area above the heating element 310 is the position to be bent. The heating element 310 starts to heat up, making the position to be bent soft. Then the acrylic sheet is placed on the bending die 500, so that the position to be bent is located outside the edge of the bending die 500. At this time, the suspended part of the acrylic sheet is pressed down, causing the suspended part of the acrylic sheet to bend under pressure.

[0055] To adjust the included angle after bending the acrylic sheet, the tilt angle of the bending die 500 needs to be adjusted. It also includes an indicator semicircular plate 510 and an angle semicircular plate 520. The center of the indicator semicircular plate 510 and the center of the angle semicircular plate 520 are connected by a rotating shaft, so that the indicator semicircular plate 510 can rotate around the rotating shaft.

[0056] The indicator semicircular plate 510 is mounted on the end of the bending die 500, and the angle semicircular plate 520 is fixed on the frame 100. When the bending die 500 is rotated, the indicator semicircular plate 510 rotates relative to the angle semicircular plate 520, and the angle semicircular plate 520 displays the rotation angle of the bending die 500.

[0057] Specifically, the indicator semicircular plate 510 has an indicator engraving line 511, and the indicator semicircular plate 510 is bent to have a support plate 512, which is fixed to the bottom of the bending die 500.

[0058] The angle semicircular plate 520 is engraved with a scale mark 521 for indicating the angle and a digital mark 522 for indicating the angle value. An arc-shaped window 523 is opened between the scale mark 521 and the digital mark 522. The indicator line 511 is displayed through the arc-shaped window 523. When the indicator semicircular plate 510 rotates relative to the angle semicircular plate 520, the indicator line 511 points to the corresponding scale mark 521 and the digital mark 522 for indicating the angle value, so as to facilitate the staff to read the tilt angle and understand the real-time tilt angle of the bending die 500.

[0059] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one embodiment or example.

[0060] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A hot bending machine, characterized in that, include: A frame (100) on which a sliding assembly (200) is mounted. A heating mechanism (300) is provided, wherein multiple heating mechanisms (300) are arranged parallel to each other, and each heating mechanism (300) is connected to the sliding assembly (200) so that the heating mechanism (300) slides along the sliding assembly (200). The heating mechanism (300) includes a heating element (310) and a lifting adjustment assembly (320). Two sets of lifting adjustment assemblies (320) are used, and the heating element (310) is installed between the two sets of lifting adjustment assemblies (320). The lifting adjustment assembly (320) is used to adjust the height of the heating element (310).

2. The hot bending machine according to claim 1, characterized in that, The heating element (310) is installed inside the elongated groove (330), which is connected to the sliding assembly (200). Two sets of lifting adjustment assemblies (320) are respectively installed at both ends of the elongated groove (330). The lifting adjustment assembly (320) includes a lifting block (321), a lifting screw (322), and an adjusting nut (323). The lifting block (321) is connected to the end of the heating element (310), the top end of the lifting screw (322) is connected to the lifting block (321), and the adjusting nut (323) is mounted on the lifting screw (322). Rotating the adjusting nut (323) causes the lifting screw (322) to move up and down.

3. The hot bending machine according to claim 2, characterized in that, The bottom of the long groove (330) is fitted with reinforcing ribs (340).

4. The hot bending machine according to claim 2, characterized in that, The lifting adjustment assembly (320) also includes a fixed seat (324), which is fixed to the end of the elongated groove (330), and the lifting screw (322) is vertically inserted into the fixed seat (324); The fixed base (324) has a notch (301) through which the lifting screw (322) passes. The lifting screw (322) is also equipped with a limiting nut (325), which is located inside the notch (301). The adjusting nut (323) is located below the fixed base (324).

5. The hot bending machine according to claim 2, characterized in that, The heating element (310) uses a heating wire. A fixing bolt (326) is horizontally inserted on the lifting block (321). The fixing bolt (326) is used to fix the end of the heating element (310). A clamping nut (327) is installed on the fixing bolt (326). A spring (328) is fitted on the fixing bolt (326). The spring (328) is located between the clamping nut (327) and the lifting block (321).

6. The hot bending machine according to claim 4, characterized in that, The sliding assembly (200) includes a slide rod (210) and a slider (220). The two ends of the slide rod (210) are equipped with bearing seats (230), which are fixed to the frame (100). The slider (220) is slidably mounted on the slide rod (210) and is fixed to the bottom of the elongated groove (330). A fixing screw (240) is vertically mounted on the bottom of the slider (220), and the top end of the fixing screw (240) is used to press against the slide rod (210).

7. The hot bending machine according to claim 1, characterized in that, It also includes a water cooling tank (400), which is adjacent to the heating element (310) and is arranged in parallel with the heating element (310).

8. The hot bending machine according to claim 1, characterized in that, It also includes a bending die (500), which is rotatably mounted on the end of the frame (100), and the bending die (500) and the heating mechanism (300) are arranged parallel to each other.

9. The hot bending machine according to claim 8, characterized in that, It also includes an indicator semicircular plate (510) and an angle semicircular plate (520). The center of the indicator semicircular plate (510) and the center of the angle semicircular plate (520) are rotatably connected. The indicator semicircular plate (510) is mounted on the end of the bending die (500), and the angle semicircular plate (520) is fixed on the frame (100). While the bending die (500) is rotating, the indicator semicircular plate (510) rotates relative to the angle semicircular plate (520), and the angle semicircular plate (520) displays the rotation angle of the bending die (500).

10. The hot bending machine according to claim 9, characterized in that, The indicator semicircular plate (510) is engraved with indicator lines (511), and the indicator semicircular plate (510) is bent with a support plate (512), and the support plate (512) is fixed to the bottom of the bending mold (500); The angle semicircular plate (520) is engraved with a scale mark (521) indicating the angle and a numerical mark (522) indicating the angle value. An arc-shaped window (523) is opened between the scale mark (521) and the numerical mark (522), and the indicator line (511) is displayed through the arc-shaped window (523).

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