A corrugated dust cover demolding device

Abstract

This invention discloses a demolding device for corrugated dust covers, specifically relating to the field of automotive parts manufacturing technology. It includes a support frame with a displacement mechanism, an anti-breakage mechanism, a binding mechanism, an extrusion frame, and an air-blowing mechanism arranged sequentially from right to left. The extrusion frame is slidably connected to one side of the support frame. The displacement mechanism is used to move the mold core. The air-blowing mechanism, in conjunction with the binding and displacement mechanisms, is used to demold the corrugated dust cover. The anti-breakage mechanism limits the expansion threshold of the corrugated dust cover. This invention, by setting up a binding mechanism, a fixed cylinder, and air nozzles, allows for the installation and replacement of air nozzles of different sizes within the fixed cylinder to accommodate mold cores of different sizes. The binding mechanism then fixes the ports of corrugated dust covers of different sizes between the outer periphery of the air nozzles and the binding mechanism. Air is blown into the gap between them, causing the corrugated dust cover to expand and detach from the outer surface of the mold core, thus enabling the demolding of corrugated dust covers of different sizes.

Description

Technical Field

[0001] This invention relates to the field of automotive parts manufacturing technology, specifically to a corrugated dust cover demolding device. Background Technology

[0002] Patent document CN205929176U discloses a demolding device for rubber corrugated dust covers, solving the problems of difficult and inefficient demolding of rubber corrugated dust covers in existing technologies. The device includes a mold core and an air nozzle. One end of the air nozzle is inserted into the gap between the corrugated dust cover and the mold core. A clamp is fitted around the outside of the corrugated dust cover and the mold core. The end of the air nozzle is equipped with a quick-connect air pipe plug, and the air nozzle has a handle. In this technical document, the rubber corrugated dust cover expands under air pressure and experiences a reaction force, thus achieving automatic demolding, reducing labor intensity and improving production efficiency.

[0003] Existing conventional air-blowing demolding methods still pose a risk of blowing the corrugated dust cover to burst or crack, thereby affecting the production quality of the product. Furthermore, the above-mentioned technologies can only demold corrugated dust covers of a single size and cannot meet the demolding needs of various corrugated dust covers. Summary of the Invention

[0004] The purpose of this invention is to provide a corrugated dust cover demolding device.

[0005] The technical problem solved by the present invention is: 1. The existing technology can only perform demolding processing on corrugated dust covers of a single size, and cannot meet the demolding needs of various corrugated dust covers;

[0006] 2. Using the conventional air blowing demolding method carries the risk of blowing the corrugated dust cover to burst or crack, reducing the production quality of the product.

[0007] The present invention can be achieved through the following technical solution: a corrugated dust cover demolding device, including a support frame, on which a displacement mechanism, an anti-breakage mechanism, a binding mechanism, an extrusion frame and an air blowing mechanism are arranged sequentially from right to left. The displacement mechanism is used to drive the mold core to move. The air blowing mechanism, together with the binding mechanism and the displacement mechanism, is used to demold the corrugated dust cover. The anti-breakage mechanism is used to limit the expansion threshold of the corrugated dust cover.

[0008] The binding mechanism includes an annular frame fixedly connected to the side of the extrusion frame adjacent to the anti-breakage mechanism. Rotating rods are rotatably installed through both sides of the annular frame. Several second springs are evenly fixedly installed on the inner circumferential wall of the annular frame. An extrusion block is fixedly installed at the end of the second spring away from the inner circumferential wall of the annular frame. Polyester thread is wound between the extrusion blocks. The two ends of the polyester thread are fixedly connected to the outer circumferential walls of the two rotating rods respectively. The extrusion frame is slidably connected to one side of the support frame. The displacement mechanism drives the mold core and its outer corrugated dust cover to pass through the anti-breakage mechanism, so that the end of the mold core away from the displacement mechanism is aligned with the air outlet of the air blowing mechanism. The binding mechanism fixes the corrugated dust cover between the binding mechanism and the air blowing mechanism. Then, the displacement mechanism is moved back, which can realize the demolding of the corrugated dust cover.

[0009] A further technical improvement of the present invention is that the displacement mechanism includes a displacement frame that is slidably disposed on the top of the support frame. A bidirectional threaded rod is rotatably mounted on one side of the displacement frame. Two clamping plates that are symmetrically arranged are threaded onto the two threads of the bidirectional threaded rod. The clamping plates are slidably connected to the displacement frame through a limiting rod. One end of the mold core is placed between the two clamping plates. Then, the bidirectional threaded rod is rotated so that the two clamping plates approach the mold core at the same distance, thereby fixing mold cores of different sizes.

[0010] Furthermore, the anti-rupture mechanism includes two support frames fixedly installed on both sides of the top of the support frame. Several support rods are evenly arranged between the two support frames. Each support rod has a sliding rod fixedly installed on the support frame near the two support frames. A first spring is sleeved on the surface of the sliding rod. The two ends of the first spring are fixedly connected to the end of the sliding rod and the surface of the support frame, respectively. Anti-rupture covers are also sleeved on the outer periphery of the several support rods. Velcro is fixedly installed on the front and back of the anti-rupture covers. By increasing or decreasing the contact area of ​​the two Velcro, the size of the dust cover can be adjusted to be within the threshold of the expansion of different corrugated dust covers, thereby preventing the corrugated dust cover from being blown apart.

[0011] Furthermore, the rupture shield is made of textile material, which can reduce damage to the expanding corrugated dust shield without deforming under stress, thus preventing the rupture shield from being altered by the expanding corrugated dust shield.

[0012] Furthermore, the air blowing mechanism includes an airbag fixedly installed between the extrusion frame and the support frame. A one-way air inlet is fixedly installed on the outer peripheral wall of the airbag, and a one-way air outlet is fixedly installed on the side of the airbag near the binding mechanism. A fixed cylinder connected to the one-way air outlet is provided on the support frame near the position of the one-way air outlet. An air blowing nozzle is installed inside the fixed cylinder. Under no pressure, the one-way air outlet and the one-way air inlet are in a closed state.

[0013] Furthermore, the inner circumferential wall of the fixing cylinder is made of rubber material, which increases the fixation of the air nozzle while preventing gas leakage during blowing.

[0014] Furthermore, the polyester thread is wound at least two turns between several extrusion blocks to reduce the risk of the polyester thread breaking.

[0015] Furthermore, the extrusion block is made of rubber material and is shaped as a hollow cuboid, which increases the friction between the extrusion block and the port of the corrugated dust cover, preventing the port of the corrugated dust cover from slipping off when air is blown into it.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This invention, by setting up a binding mechanism, a fixing cylinder and an air nozzle, allows for the installation and replacement of air nozzles of different sizes inside the fixing cylinder to accommodate mold cores of different sizes. Then, the binding mechanism is used to fix the ports of corrugated dust covers of different sizes between the outer peripheral wall of the air nozzle and the binding mechanism. Air is blown into the gap between them, causing the corrugated dust cover to expand and detach from the outer surface of the mold core, thereby enabling the demolding operation of corrugated dust covers of different sizes.

[0018] 2. By setting up an anti-breakage mechanism, the present invention changes the anti-breakage size of the anti-breakage cover by changing the bonding range between the two Velcro straps. This adjusts the anti-breakage size to within the threshold of the corrugated dust cover to be demolded due to expansion and breakage, thereby reducing the risk of the corrugated dust cover bursting or cracking and improving the production quality of the product. Attached Figure Description

[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the external structure of the present invention, showing its anti-breakage shield.

[0022] Figure 3 For the present invention Figure 1 A magnified view of a section at point A in the middle;

[0023] Figure 4 This is a cross-sectional view of the structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the binding mechanism of the present invention;

[0025] In the diagram: 1. Support frame;

[0026] 2. Displacement mechanism; 21. Displacement frame; 22. Bidirectional threaded rod; 23. Clamping plate;

[0027] 3. Anti-breakage mechanism; 31. Support frame; 32. Support rod; 33. First spring; 34. Anti-breakage cover; 35. Velcro;

[0028] 4. Extrusion frame;

[0029] 5. Binding mechanism; 51. Circular frame; 52. Rotating rod; 53. Second spring; 54. Compression block; 55. Polyester thread;

[0030] 6. Airbag; 7. One-way air inlet; 8. One-way air outlet; 9. Fixing cylinder; 10. Air nozzle. Detailed Implementation

[0031] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0032] Please see Figure 1-3 As shown, this embodiment provides a corrugated dust cover demolding device, including a support frame 1. An electric telescopic rod is fixedly installed at the bottom of the support frame 1. A displacement mechanism 2 is provided on the top plate of the support frame 1. The displacement mechanism 2 includes a displacement frame 21 that slides through the top of the support frame 1. A bidirectional threaded rod 22 is rotatably installed through one side of the displacement frame 21. Two symmetrically arranged clamping plates 23 are threadedly connected to the two threads of the bidirectional threaded rod 22. The clamping plates 23 are slidably connected to the displacement frame 21 through a limiting rod. Rotating the bidirectional threaded rod 22 clockwise causes the two clamping plates 23 to move away from each other, thereby increasing the clamping size of the mold core. Conversely, rotating it clockwise decreases the clamping size of the mold core, thereby achieving the purpose of clamping and fixing mold cores of different sizes.

[0033] Please see Figure 1-2 As shown, an anti-breakage mechanism 3 is installed at the top of the support frame 1 near the displacement mechanism 2. The anti-breakage mechanism 3 includes two support frames 31 fixedly installed at the top of the support frame 1. Several support rods 32 are evenly arranged between the two support frames 31. Each support rod 32 is fixedly provided with a sliding rod that slides through the support frame 31 near the two support frames 31. A first spring 33 is sleeved on the surface of the sliding rod. The two ends of the first spring 33 are fixedly connected to the end of the sliding rod and the surface of the support frame 31, respectively. An anti-breakage cover 34 is also sleeved on the outer periphery of the several support rods 32. The anti-breakage cover 34 is made of textile material. Velcro 35 is fixedly installed on the front and back of the anti-breakage cover 34.

[0034] When the bonding position of the two Velcro straps 35 on the anti-breakage cover 34 increases, the anti-breakage size of the anti-breakage cover 34 becomes smaller, thereby driving several support rods 32 to move closer to the outer peripheral wall of the corrugated dust cover to be demolded, and putting the first spring 33 under stress. Conversely, the stressed first spring 33 drives the support rods 32 to move outward from the support frame 31, thereby increasing the anti-breakage size of the anti-breakage cover 34.

[0035] Please see Figure 2 and Figure 5 As shown, a compression frame 4 is slidably arranged on the side of the support frame 1 away from the displacement mechanism 2. A binding mechanism 5 corresponding to the displacement mechanism 2 is fixedly installed on the side of the compression frame 4 near the anti-breakage mechanism 3. The binding mechanism 5 includes an annular frame 51 fixedly connected to the side of the compression frame 4 near the anti-breakage mechanism 3. Both sides of the annular frame 51 are provided with through holes. A rotating rod 52 is rotatably installed through the through holes of the annular frame 51. Several second springs 53 are evenly fixedly installed on the inner circumferential wall of the annular frame 51. A compression block 54 is fixedly installed at the end of the several second springs 53 away from the annular frame 51. The compression block 54 is made of rubber material and is hollow cuboid in shape. Two turns of polyester thread 55 are wound between the several compression blocks 54. The two ends of the polyester thread 55 are fixedly connected to the outer circumferential wall of the two rotating rods 52 respectively.

[0036] Rotating the rotating rod 52 clockwise causes the polyester thread 55 to wind around the outer wall of the rotating rod 52. The longer the polyester thread 55 is wound on the rotating rod 52, the smaller the size of the polyester thread 55 loops wound between the extrusion blocks 54. At this time, the second spring 53 is under tension. Rotating the rotating rod 52 counterclockwise shortens the polyester thread 55 wound around the outer wall of the rotating rod 52, thus increasing the length of the polyester thread 55 loops. The rebound of the second springs 53 under tension keeps the polyester thread 55 loops taut and increases their loop size. Through the above operation, the ports of corrugated dust covers of different sizes can be tightened.

[0037] Please see Figure 4-5 As shown, an airbag 6 is fixedly installed between the extrusion frame 4 and the support frame 1. A one-way air inlet 7 is installed on the outer peripheral wall of the airbag 6. A one-way air outlet 8 is fixedly connected to one end of the airbag 6 near the binding mechanism 5. A fixed cylinder 9 connected to the one-way air outlet 8 is fixedly installed on the support frame 1 near the position of the one-way air outlet 8. The inner peripheral wall of the fixed cylinder 9 is made of rubber material, and an air nozzle 10 is inserted into the fixed cylinder 9.

[0038] Insert one end of the air nozzle 10 into the gap between the corrugated dust cover and the mold core. Then, fix the port of the corrugated dust cover between the mold core and the binding mechanism 5 through the binding mechanism 5. At this time, moving the mold core will drive the extrusion frame 4 to move. When the extrusion frame 4 moves towards the airbag 6, the airbag 6 is compressed, causing the air inside to be blown through the one-way air outlet 8 to the space between the mold core and the corrugated dust cover, thereby causing the corrugated dust cover to expand and detach from the mold core. Conversely, the extrusion frame 4 stretches the airbag 6, causing the airbag 6 to draw in air through the one-way air inlet 7 and re-expand, in preparation for subsequent air blowing between the corrugated dust cover and the mold core.

[0039] In use, the present invention first installs an air nozzle 10 adapted to the end of the mold core inside the fixed cylinder 9, and fixes the mold core of the corrugated dust cover to be demolded inside the displacement mechanism 2. Then, the displacement mechanism 2 drives the mold core to move towards the air nozzle 10 until the air nozzle 10 is inserted between the mold core and the port of the corrugated dust cover. At this time, the binding size of the binding mechanism 5 is reduced, so that several extrusion blocks 54 are pressed against the outer peripheral wall of the port of the corrugated dust cover, thereby fixing the port of the corrugated dust cover between the air nozzle 10 and the binding mechanism 5. At this time, the displacement mechanism 2 drives the mold core to move in another direction, which will drive the extrusion frame 4 to extrude the air bag 6, so that the air bag 6 blows air between the mold core and the corrugated dust cover through the air nozzle 10, thereby causing the corrugated dust cover to expand and detach from the outer surface of the mold core. At this time, the anti-rupture mechanism 3 restricts the corrugated dust cover so that the expansion size of the corrugated dust cover will not reach the rupture threshold. The displacement mechanism 2 drives the mold core to detach from the expanded corrugated dust cover.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A demoulding apparatus for bellows-type dust covers, comprising a support frame (1), characterised in that: The support frame (1) is provided with a displacement mechanism (2), an anti-breakage mechanism (3), a binding mechanism (5), an extrusion frame (4) and an air blowing mechanism from right to left. The displacement mechanism (2) is used to drive the mold core to move. The air blowing mechanism, together with the binding mechanism (5) and the displacement mechanism (2), is used to demold the corrugated dust cover. The anti-breakage mechanism (3) is used to limit the expansion threshold of the corrugated dust cover. The binding mechanism (5) includes an annular frame (51) fixedly connected to one side of the extrusion frame (4). Rotating rods (52) are rotatably arranged through both sides of the annular frame (51). Several second springs (53) are evenly fixedly installed on the inner peripheral wall of the annular frame (51). An extrusion block (54) is fixedly installed at one end of the second spring (53) away from the inner peripheral wall of the annular frame (51). Polyester thread (55) is wound between several extrusion blocks (54). The two ends of the polyester thread (55) are fixedly connected to the outer peripheral walls of the two rotating rods (52) respectively. The extrusion frame (4) is slidably connected to one side of the support frame (1). The anti-breakage mechanism (3) includes two support frames (31) fixedly installed on the top sides of the support frame (1). Several support rods (32) are evenly arranged between the two support frames (31). Each support rod (32) is fixedly provided with a sliding rod that slides through the support frame (31) at a position adjacent to the two support frames (31). A first spring (33) is sleeved on the surface of the sliding rod. The two ends of the first spring (33) are fixedly connected to the end of the sliding rod and the surface of the support frame (31) respectively. An anti-breakage cover (34) is sleeved on the outer periphery of the several support rods (32). Velcro (35) is fixedly installed on the front and back of the anti-breakage cover (34). The anti-breakage cover (34) is made of textile material.

2. The corrugated dust cover demolding device according to claim 1, characterized in that, The displacement mechanism (2) includes a displacement frame (21) that is slidably disposed on the top of the support frame (1). A bidirectional threaded rod (22) is rotatably mounted on one side of the displacement frame (21). Two clamping plates (23) are threadedly connected to the two threads of the bidirectional threaded rod (22) respectively. The clamping plates (23) are slidably connected to the displacement frame (21) through a limiting rod.

3. The corrugated dust cover demolding device according to claim 1, characterized in that, The air blowing mechanism includes an airbag (6) fixedly installed between the extrusion frame (4) and the support frame (1). A one-way air inlet (7) is fixedly installed on the outer peripheral wall of the airbag (6). A one-way air outlet (8) is fixedly installed on the side of the airbag (6) near the binding mechanism (5). A fixed cylinder (9) connected to the one-way air outlet (8) is provided on the support frame (1) near the position of the one-way air outlet (8). An air blowing nozzle (10) is installed inside the fixed cylinder (9).

4. The corrugated dust cover demolding device according to claim 3, characterized in that, The inner circumferential wall of the fixed cylinder (9) is made of rubber material.

5. The corrugated dust cover demolding device according to claim 1, characterized in that, The polyester yarn (55) is wound at least two turns between several extrusion blocks (54).

6. The corrugated dust cover demolding device according to claim 1, characterized in that, The extrusion block (54) is made of rubber material and is shaped as a hollow cuboid.

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