A demolding aid

Abstract

The utility model relates to the technical field of demoulding engineering, disclose a kind of demoulding auxiliary tool. Demoulding auxiliary tool is used to separate the demoulding module on mould tool, including support seat, moving part and drive assembly, the corner portion of mould tool is provided with physical avoidance space by the niche of moving part, ensure that mould tool is not subjected to lateral force when moving part moves, avoid mould tool damage, the two angle settings of the insert sheet of moving part top can be accurately inserted into the gap between the demoulding module and mould tool, substantially reduce the negative pressure adsorption effect between the demoulding module and mould tool, then the top wall of moving part and demoulding module bottom wall abut, drive assembly drives moving part to move along first direction and then push demoulding module to move along first direction, realize the separation of demoulding module and mould tool, save time and labour and avoid the loss caused by violent demoulding, and demoulding efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of demolding engineering technology, and in particular to a demolding auxiliary tool. Background Technology

[0002] Commercial aircraft luggage typically features a deep-cavity structure, providing convenience for passengers and accommodating more baggage. Luggage is usually manufactured using a honeycomb sandwich panel autoclave, resulting in a semi-shell structure. Manufacturers typically sew fabric onto the inside of these semi-shells, pivotally connect the two halves, and assemble wheels and handles to complete the luggage. The deep-cavity structure of the semi-shell creates significant negative pressure, causing it to fit tightly onto the mold. Due to material properties, adhesion can occur between the semi-shell and the mold, making it difficult for workers to separate them. This is time-consuming, labor-intensive, and reduces processing efficiency. Forced demolding can damage the semi-shell, requiring re-production and increasing production costs.

[0003] Therefore, there is an urgent need for a mold tooling auxiliary tool to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a demolding aid tool that can efficiently demold.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A demolding aid tool is used to separate a part to be demolded from a mold fixture. The mold fixture includes a corner portion, and the corner portion includes two sidewalls that are connected at an angle and both extend along a first direction. The part to be demolded is fitted outside the sidewalls and has a gap between it and the sidewalls. The demolding aid tool includes:

[0007] Support base,

[0008] A movable component is movably disposed on the support base. The movable component is provided with a relief groove extending along the first direction. The top wall of the movable component can abut against the bottom wall of the part to be demolded. The top wall of the movable component is provided with two inserts extending along the first direction. The two inserts are arranged at the angle. The groove wall of the relief groove and the two inserts can fit against the two side wall surfaces of the corner. The two inserts can be inserted into the gap.

[0009] A driving component is disposed on the support base and is used to drive the moving part to move along the first direction to demold the part to be demolded.

[0010] Preferably, the support base includes two guide plates spaced apart along a second direction, the movable member is disposed between the two guide plates, and each of the two guide plates is provided with a guide rail extending along the first direction on the side facing the movable member. The movable member is provided with a guide rail groove extending along the first direction, wherein the guide rail is located in the guide rail groove and the guide rail is slidable in the guide rail groove.

[0011] Preferably, the drive assembly includes a drive shaft and a gear. The drive shaft rotatably passes through the guide plate, and the gear is fixedly mounted on the drive shaft. The moving part has a straight tooth on the side opposite to the relief groove. When the drive shaft rotates around a first clockwise direction, the gear meshes with the straight tooth to drive the moving part to move along the first direction and approach the demolding part.

[0012] Preferably, the drive assembly further includes a ratchet wrench disposed on the drive shaft.

[0013] Preferably, the support base further includes a first limiting rod and a second limiting rod, the first limiting rod and the second limiting rod being spaced apart along the first direction, and the ratchet wrench being located between the first limiting rod and the second limiting rod.

[0014] Preferably, the support base includes support wall plates spaced apart along two second directions, and two guide plates are located between the two support wall plates. One of the support wall plates is provided with a first connecting hole, and the other support wall plate is provided with a second connecting hole. The drive shaft passes through the first connecting hole and the second connecting hole, and the drive shaft is able to rotate around its own axis within the first connecting hole and the second connecting hole.

[0015] Preferably, at least one of the first connecting hole and the second connecting hole is rotatably provided with a support ratchet, and the drive shaft is fixedly connected to the inner ring of the support ratchet. When the drive shaft rotates in the first connecting hole, the support ratchet rotates in the first connecting hole.

[0016] Preferably, the support base is also provided with a first support pawl, which abuts against the outer edge of the support ratchet, so that the support ratchet can rotate around the first clockwise direction.

[0017] Preferably, the thickness of the end of the insert closer to the moving member is greater than the thickness of the end of the insert farther from the moving member.

[0018] Preferably, the support base is a magnetic component.

[0019] The beneficial effects of this utility model are:

[0020] This utility model proposes a demolding auxiliary tool for separating a part to be demolded from a mold fixture. The mold fixture includes a corner portion, which includes two sidewalls that are connected at an angle and extend along a first direction. The part to be demolded is fitted outside the sidewalls and there is a gap between it and the sidewalls. Specifically, the demolding auxiliary tool includes a support base, a movable component, and a driving assembly. The movable component is movably mounted on the support base and has a clearance groove. The top wall of the movable component can abut against the bottom wall of the part to be demolded. The top wall of the movable component has two inserts that are angled and extend along the first direction. The groove wall of the clearance groove and the two inserts can fit against the two sidewalls of the corner portion of the mold fixture, and the two inserts can be inserted into the gap. The driving assembly is mounted on the support base and is used to drive the movable component to move along the first direction and push the part to be demolded to move along the first direction. The moving part's clearance groove provides physical clearance space for the corner of the mold fixture, ensuring that the mold fixture is not subjected to lateral force when the moving part moves, thus avoiding damage to the mold fixture. The two angled inserts on the top of the moving part can be precisely inserted into the gap between the part to be demolded and the mold fixture, significantly reducing the negative pressure adsorption effect between the part to be demolded and the mold fixture. Then, the top wall of the moving part abuts against the bottom wall of the part to be demolded, and the driving component drives the moving part to move along the first direction, thereby pushing the part to be demolded to move along the first direction, realizing the separation of the part to be demolded from the mold fixture. This saves time and effort and avoids the losses caused by violent demolding, resulting in high demolding efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the demolding aid tool proposed in an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the movable component proposed in the embodiments of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the guide plate proposed in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the support base proposed in an embodiment of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the first reversing switch and the second reversing switch proposed in the embodiments of this utility model;

[0026] Figure 6 This is a schematic diagram of the transmission shaft structure proposed in an embodiment of this utility model.

[0027] Figure 7 This is a schematic diagram of the transmission shaft and gear proposed in an embodiment of this utility model.

[0028] In the picture:

[0029] 1. Support base; 11. Guide plate; 111. Guide rail; 112. Support hole; 12. First limiting rod; 13. Second limiting rod; 14. Support wall plate; 141. First connecting hole; 142. Second connecting hole; 15. Base plate; 16. Second reversing switch; 17. Fixed shaft; 2. Moving part; 21. Clearance groove; 22. Insert; 23. Guide rail groove; 24. Straight gear; 3. Drive assembly; 31. Transmission shaft; 311. First keyway; 312. First shoulder; 313. Second shoulder; 32. Gear; 321. Second keyway; 33. Ratchet wrench; 331. First reversing switch. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between 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.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] The suitcase comprises two semi-shells, which are formed in an autoclave using honeycomb sandwich components. The semi-shells have a deep cavity structure and are typically tightly fitted onto a mold fixture after forming. Due to the high negative pressure inside the semi-shells and some adhesion between them and the mold fixture, demolding is difficult. To address this issue, this embodiment proposes a demolding aid tool, wherein the semi-shells are referred to below as the parts to be demolded.

[0035] Reference Figures 1 to 7 This embodiment proposes a demolding auxiliary tool for separating a part to be demolded from a mold fixture. The mold fixture includes a corner portion, which includes two sidewalls that are connected at an angle and extend along a first direction. The part to be demolded is fitted outside the sidewalls and there is a gap between it and the sidewalls. Specifically, the demolding auxiliary tool includes a support base 1, a movable part 2, and a driving assembly 3. The movable part 2 is movably mounted on the support base 1. The movable part 2 is provided with a clearance groove 21. The top wall of the movable part 2 can abut against the bottom wall of the part to be demolded. The top wall of the movable part 2 is provided with two inserts 22 that are set at an angle and extend along the first direction. The groove wall of the clearance groove 21 of the movable part 2 and the two inserts 22 can fit against the two sidewalls of the corner portion of the mold fixture, and the two inserts 22 can be inserted into the gap. The driving assembly 3 is mounted on the support base 1. The driving assembly 3 is used to drive the movable part 2 to move along the first direction and push the part to be demolded to move along the first direction. In this design, the clearance groove 21 of the movable component 2 provides physical clearance space for the corner of the mold fixture, ensuring that the mold fixture is not subjected to lateral force when the movable component 2 moves, thus avoiding damage to the mold fixture. The two angled inserts 22 on the top of the movable component 2 can be precisely inserted into the gap between the part to be demolded and the mold fixture, significantly reducing the negative pressure adsorption effect between the part to be demolded and the mold fixture. Then, the top wall of the movable component 2 abuts against the bottom wall of the part to be demolded, and the driving component 3 drives the movable component 2 to move along the first direction, thereby pushing the part to be demolded to move along the first direction, realizing the separation of the part to be demolded from the mold fixture. This saves time and effort and avoids the losses caused by violent demolding, resulting in high demolding efficiency. Secondly, since there is a lateral adhesion force at the corner of the corner between the part to be demolded and the mold fixture, the adhesion force is stronger at this point. Therefore, in this embodiment, the demolding auxiliary tool is selected to apply force at the corner of the mold fixture for demolding, which has high demolding efficiency.

[0036] The first direction refers to the height of the mold fixture, i.e., the vertical direction. It can be understood that the height of the mold fixture is greater than the height of the part to be demolded. Therefore, when the part to be demolded is formed and fitted onto the mold fixture, it is positioned slightly above the mold fixture. Specifically, there is a distance between the bottom wall of the part to be demolded and the base of the mold fixture below it. This distance is sufficient to accommodate the demolding auxiliary tool, allowing it to be placed on the base and the insert 22 on the moving part 2 to smoothly insert into the gap between the part to be demolded and the mold fixture. The distance between the bottom wall of the part to be demolded and the base of the mold fixture below it is slightly greater than the original overall height of the demolding auxiliary tool. The original overall height of the demolding auxiliary tool refers to its overall height when the moving part 2 is not moving in the first direction.

[0037] The tooling base is usually made of magnetic metal, and the support base 1 is made of magnetic material. When the demolding auxiliary tool is placed on the tooling base, the two can be directly attracted and fixed, ensuring the stable placement of the demolding auxiliary tool and preventing the support base 1 from shaking, tilting or even tipping over during the demolding process, thus ensuring demolding efficiency.

[0038] Furthermore, the mold fixture includes multiple corner sections. Therefore, when demolding the part to be demolded from the mold fixture, multiple demolding auxiliary tools are required, each corresponding to a corner section. This multi-point demolding method ensures uniform stress distribution on the part to be demolded during the demolding process, avoiding stress concentration caused by single-point demolding and thus preventing damage to the part. In this embodiment, the part to be demolded is a rectangular shell, and the mold fixture is a cuboid with four corner sections. The demolding process requires four demolding auxiliary tools, and the angle between the two side walls is 90 degrees. The two walls of the clearance groove 21 on the moving part 2 are also set at 90 degrees.

[0039] Reference Figure 1 and Figure 2 In the demolding aid, the thickness of the end of the insert 22 near the moving part 2 is greater than the thickness of the end away from the moving part 2. When using the demolding aid for demolding, the support base 1 is first placed on the mounting base, and then the insert 22 is aligned with the gap between the part to be demolded and the side wall. The drive assembly 3 works to drive the moving part 2 to move along the first direction, so that the insert 22 is accurately inserted into the gap between the part to be demolded and the side wall. Therefore, the thickness of the end of the insert 22 near the moving part 2 is set to be greater than the thickness of the end away from the moving part 2. That is, the thickness of the end of the insert 22 near the gap is less than the thickness of the end away from the gap. Therefore, the part of the insert 22 that first enters the gap is thinner during demolding. The thinner end can reduce the contact area and frictional resistance, optimize the initial insertion resistance and progressive force transmission, and make the insert 22 easier to cut into the gap. This avoids the risk of jamming, displacement or damage to the workpiece due to excessive resistance when inserting if the thickness of the insert 22 is uniform.

[0040] Furthermore, the support base 1 includes two guide plates 11 spaced apart along a second direction, and a movable member 2 is disposed between the guide plates 11 in the second direction. Each guide plate 11 has a guide rail 111 extending along a first direction on its side facing the movable member 2. The movable member 2 has a guide rail groove 23 extending along the first direction, wherein the guide rail 111 is located within the guide rail groove 23 and can slide within the guide rail groove 23. Firstly, the guide plates 11 are spaced apart along the second direction and distributed on both sides of the movable member 2, forming a double-sided hard limit on the movable member 2 in the second direction, eliminating the risk of the movable member 2 tipping over or shifting. Simultaneously, the guide rails 111 on the guide plates 11 cooperate with the guide rail grooves 23 on the movable member 2 to guide the movement of the movable member 2. When the movable member 2 moves in the first direction, the guide rails 111 slide within the guide rail grooves 23, ensuring that the movable member 2 can move accurately and stably along the first direction. The second direction is perpendicular to the first direction and is a horizontal direction, representing the overall extension direction of the support base 1.

[0041] In addition, the drive assembly 3 of the demolding auxiliary tool is the power source for the moving part 2. The drive assembly 3 includes a drive shaft 31 and a gear 32. The drive shaft 31 rotatably passes through the guide plate 11, and the gear 32 is fixedly mounted on the drive shaft 31. The moving part 2 has a spur tooth 24 on the side opposite to the relief groove 21. When the drive shaft 31 rotates around the first clockwise direction, the gear 32 and the spur tooth 24 mesh with each other to drive the moving part 2 to move along the first direction and approach the part to be demolded. Each guide plate 11 is provided with a support hole 112. The drive shaft 31 passes through the support holes 112 of two guide plates 11 in sequence to complete the installation of the drive shaft 31. The diameter of the support hole 112 is slightly larger than the diameter of the drive shaft 31, so that the drive shaft 31 can rotate smoothly around its own axis within the support hole 112. A gear 32 is fixedly mounted on the drive shaft 31. When the drive shaft 31 rotates, it drives the gear 32 to rotate. Since the gear 32 meshes with the spur teeth 24 on the moving part 2, it drives the moving part 2 to move along the first direction. Moreover, when the drive shaft 31 rotates around the first clockwise direction, the moving part 2 moves along the first direction and approaches the part to be demolded, converting the rotational motion into linear motion to push the moving part 2 to move along the first direction, thereby achieving smooth separation of the part to be demolded. In this embodiment, in order to ensure driving stability, two gears 32 are provided. Both gears 32 are fixedly mounted on the drive shaft 31, which extends along the second direction, and the two gears 32 are spaced apart in the second direction.

[0042] Specifically, refer to Figure 6 and Figure 7The gear 32 is fixed to the drive shaft 31 by a key connection. A first keyway 311 is recessed on the side wall of the drive shaft 31, and a second keyway 321 is recessed on the inner ring of the gear 32. The first keyway 311 and the second keyway 321 are corresponding and connected. Before installing the gear 32 on the drive shaft 31, the key is first placed in the first keyway 311 on the drive shaft 31. Part of the key extends into the first keyway 311, and the other part extends out of the first keyway 311. At this time, the gear 32 is sleeved on the drive shaft 31 and the gear 32 is moved axially, so that the other part of the key extending out of the first keyway 311 extends into the second keyway 321. At this time, the key is located in the first keyway 311 and the second keyway 321, thereby radially limiting the gear 32 and preventing the gear 32 from rotating relative to the drive shaft 31.

[0043] In addition, the drive shaft 31 is provided with two first shoulders 312, which are spaced apart along the extension direction of the drive shaft 31. The two first shoulders 312 are located on the sides of the two gears 32 facing each other, while the sides of the two gears 32 facing away from each other are limited by two guide plates 11. Thus, the two first shoulders 312 and the two guide plates 11 axially limit the gears 32 on the drive shaft 31. The drive shaft 31 is also provided with two second shoulders 313, which are also spaced apart along the extension direction of the drive shaft 31. The distance between the two second shoulders 313 is the distance between the two guide plates 11. When the drive shaft 31 passes through the support hole 112 and is installed on the two guide plates 11, the two second shoulders 313 can abut against the two guide plates 11 respectively, thereby preventing the drive shaft 31 from moving axially during operation.

[0044] Furthermore, in order to facilitate the operator to rotate the drive shaft 31 in the first clockwise direction, the drive assembly 3 also includes a ratchet wrench 33, which is mounted on the drive shaft 31. The ratchet wrench 33 is configured to drive the drive shaft 31 to rotate in a first clockwise direction. The ratchet wrench 33 is existing technology and can achieve unidirectional rotation of the drive shaft 31 through its internal one-way engagement mechanism, meaning that the drive shaft 31 does not rotate in reverse during the first clockwise rotation. The ratchet wrench 33 consists of a ratchet, a first pawl, and a handle. The inner ring of the ratchet is fixed to the drive shaft 31, and the outer edge of the ratchet is provided with a one-way inclined tooth groove. The first pawl is pressed into the one-way inclined tooth groove by a spring. When the operator rotates the handle in the first clockwise direction, the first pawl engages in the one-way inclined tooth groove under the action of the spring, pushing the ratchet to rotate synchronously, thereby driving the drive shaft 31 to rotate in the first clockwise direction. When the operator rotates the handle in a second clockwise direction, the first pawl is guided by the toothed inclined surface to slide over the tooth groove. At this time, the handle and the ratchet rotate relative to each other, causing the ratchet wrench 33 to idle, and the drive shaft 31 will not rotate in the second clockwise direction. Therefore, when the operator rotates the ratchet wrench 33 in the first clockwise direction, the drive shaft 31 rotates in that direction, and the moving part 2 moves in the first direction and approaches the part to be demolded. When the operator rotates the handle in the second clockwise direction, the drive shaft 31 does not rotate. The ratchet wrench 33 eliminates the risk of the drive shaft 31 rotating in the opposite direction. It prevents the drive shaft 31 from rotating in the opposite direction after the ratchet wrench 33 has rotated to its position in the first clockwise direction and then needs to be rotated in the opposite direction. This would cause the moving part 2 to move away from the part to be demolded during the demolding process, resulting in demolding failure. The first and second clockwise directions are opposite.

[0045] In addition, the ratchet wrench 33 is also equipped with a first reversing switch 331, which includes a second pawl inside. The first pawl and the second pawl can be selected to abut against the groove wall of the inclined tooth groove on the outer edge of the ratchet. For example, when the first pawl abuts against the groove wall of the one-way inclined tooth groove, when the operator turns the handle around the first clockwise direction, it pushes the ratchet to rotate synchronously, thereby driving the transmission shaft 31 to rotate around the first clockwise direction. When it rotates in the reverse direction, it will idle. When the first reversing switch 331 is turned, the second pawl abuts against the groove wall of the one-way inclined tooth groove. At this time, when the operator turns the handle around the second clockwise direction, it pushes the ratchet to rotate synchronously, thereby driving the transmission shaft 31 to rotate around the second clockwise direction. When it rotates in the reverse direction, it will idle. The first reversing switch 331 can change the direction in which the ratchet wrench 33 drives the drive shaft 31 to rotate. The operator can change it according to the work requirements. When it is necessary to demold the part to be demolded, the first reversing switch 331 is adjusted so that the first pawl abuts against the groove wall of the one-way inclined tooth groove, so that the drive shaft 31 rotates around the first clockwise direction, thereby moving the moving part 2 along the first direction and approaching the part to be demolded, thus achieving smooth separation of the part to be demolded. When it is necessary to reset the moving part 2 after demolding, the first reversing switch 331 can be adjusted so that the second pawl abuts against the groove wall of the one-way inclined tooth groove, so that the drive shaft 31 rotates around the second clockwise direction, thereby resetting the moving part 2.

[0046] Furthermore, the ratchet handle is positioned between the two gears 32 to ensure uniform force distribution on the transmission shaft 31. The first clockwise direction can be clockwise for ease of operation by the operator.

[0047] The support base 1 also includes a first limiting rod 12 and a second limiting rod 13. The first limiting rod 12 and the second limiting rod 13 are spaced apart along a first direction. The ratchet wrench 33 is located between the first limiting rod 12 and the second limiting rod 13 and rotates between the first limiting rod 12 and the second limiting rod 13. In this embodiment, the first limiting rod 12 is located above the second limiting rod 13. The ratchet handle can rotate between the first limiting rod 12 and the second limiting rod 13. During the demolding process, when the ratchet handle is not rotated, the ratchet handle abuts against the first limiting rod 12. When the ratchet handle is rotated in the first clockwise direction until it abuts against the second limiting rod 13, this is one rotation stroke of the ratchet handle, which is one rotation stroke of the transmission shaft 31. At the same time, the moving part 2 moves a distance closer to the demolded part in the first direction. That is, the moving part 2 moves a distance from abutting against the first limiting rod 12 to abutting against the second limiting rod 13. This ensures the synchronicity of the movement of multiple moving parts 2 when multiple demolding auxiliary tools work at the same time. When the ratchet handle of multiple demolding auxiliary tools rotates a distance at the same time, the moving part 2 moves a distance at the same time. In addition, the first limit rod 12 and the second limit rod 13 can also protect the moving part 2, preventing the ratchet handle from over-rotating and colliding with the moving part 2, thus causing damage to the moving part 2.

[0048] The support base 1 includes support wall plates 14 spaced apart along two second directions, and two guide plates 11 located between the support wall plates 14. One support wall plate 14 has a first connecting hole 141, and the other support wall plate 14 has a second connecting hole 142. A drive shaft 31 passes through the first connecting hole 141 and the second connecting hole 142, and the drive shaft 31 is rotatable around its own axis within the first connecting hole 141 and the second connecting hole 142. The support base 1 also includes a base plate 15 extending along the second direction and a fixed shaft 17 extending in the second direction. The two support wall plates 14 and the two guide plates 11 are all disposed on the base plate 15, and the two guide plates 11 are located between the two support wall plates 14. The fixed shaft 17 passes through the guide plates 11 and the support wall plates 14 and is fixedly connected to the guide plates 11 and the support wall plates 14, while the drive shaft 31 passes through the guide plates 11 and the support wall plates 14 and is rotatably connected to the guide plates 11 and the support wall plates 14.

[0049] In this embodiment, when the drive shaft 31 is connected to the two supporting wall plates 14, at least one of the first connecting hole 141 and the second connecting hole 142 is rotatably provided with a supporting ratchet (not shown in the figure). The drive shaft 31 is fixedly connected to the inner ring of the supporting ratchet. When the drive shaft 31 rotates in the first connecting hole 141, the supporting ratchet rotates in the first connecting hole 141. The supporting ratchet avoids direct frictional contact between the drive shaft 31 and the connecting hole, reducing the wear of the drive shaft 31. In this embodiment, only the first connecting hole 141 is rotatably provided with a supporting ratchet. The second connecting hole 142 is a smooth hole, and the diameter of the second connecting hole 142 is slightly larger than the diameter of the drive shaft 31. Therefore, the drive shaft 31 can smoothly rotate around its own axis in the second connecting hole 142. Furthermore, the thickness of the supporting ratchet is small and will not affect the installation of the drive shaft 31 on the two supporting wall plates 14.

[0050] Furthermore, the support base 1 is also provided with a first support pawl, which is mounted on the support wall plate 14 with the first connecting hole 141. The first support pawl abuts against the outer edge of the support ratchet, allowing the support ratchet to rotate in a first clockwise direction. Specifically, the outer edge of the support ratchet is provided with a one-way inclined tooth groove, and the first support pawl abuts against the groove wall of the one-way inclined tooth groove, allowing the support ratchet to rotate in a first clockwise direction. Under the action of the first support pawl, the support ratchet can only move in a first clockwise direction, thereby ensuring the smooth rotation of the drive shaft 31 in a first clockwise direction. The working principle of this support ratchet and the first support pawl is the same as the working principle of the ratchet wrench 33 described above, and will not be repeated here. Secondly, when the first support pawl abuts against the support ratchet, the support ratchet can only rotate in the first connecting hole 141 in the first clockwise direction. If the ratchet wrench 33 rotates to the position and abuts against the second limit rod 13, the ratchet wrench 33 needs to reverse. Since the ratchet wrench 33 will not drive the transmission shaft 31 to rotate when it reverses, the first support pawl also prevents the support ratchet from reversing, further preventing the transmission shaft 31 from rotating unexpectedly and ensuring the stability of the moving part 2.

[0051] In addition, the support base 1 is also equipped with a second reversing switch 16 and a second support pawl. The second reversing switch 16 and the second support pawl are mounted on the support wall plate 14 with the first connecting hole 141. One of the first support pawl and the second support pawl abuts against the unidirectional inclined tooth groove on the outer edge of the support ratchet, thereby realizing the reversing rotation. Its working principle is the same as that of the first reversing switch 331, and will not be described again here. The second reversing switch 16 can change the rotation direction of the support ratchet. When demolding is required, the second reversing switch 16 is adjusted so that the support ratchet can rotate in the first connecting hole 141 in the first clockwise direction, thereby ensuring synchronous rotation with the drive shaft 31. After demolding is completed, the second reversing switch 16 is adjusted so that the support ratchet can rotate in the first connecting hole 141 in the second clockwise direction, thereby ensuring synchronous rotation with the drive shaft 31.

[0052] The working process of this demolding aid tool is as follows:

[0053] Place the support base 1 on the tooling base and align the insert 22 with the gap between the part to be demolded and the side wall. Then adjust the first reversing switch 331 and the second reversing switch 16 so that the first pawl abuts against the ratchet and the first support pawl abuts against the support ratchet. Then rotate the ratchet handle in the first clockwise direction to drive the transmission shaft 31 to rotate in the first clockwise direction. The moving part 2 moves along the first direction and approaches the part to be demolded under the meshing action of the gear 32 and the spur gear 24. Then insert the insert 22 into the gap between the part to be demolded and the side wall. The top wall of the moving part 2 abuts against the bottom wall of the part to be demolded until the part to be demolded is pushed until it can be easily separated from the mold tooling.

[0054] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A demolding auxiliary tool for separating a part to be demolded from a mold fixture, the mold fixture including a corner portion, the corner portion including two sidewalls connected at an angle and both extending along a first direction, the part to be demolded being fitted over the sidewalls and having a gap between it and the sidewalls, characterized in that, The demolding aid includes: Support base (1) Movable component (2), the movable component (2) is movably disposed on the support base (1), the movable component (2) is provided with a relief groove (21) extending along the first direction, the top wall of the movable component (2) can abut against the bottom wall of the part to be demolded, and the top wall of the movable component (2) is provided with two inserts (22) extending along the first direction, the two inserts (22) are arranged at the angle, the groove wall of the relief groove (21) and the two inserts (22) can fit against the two side walls of the corner, and the two inserts (22) can be inserted into the gap; A drive assembly (3) is disposed on the support base (1) and is used to drive the moving part (2) to move along the first direction to demold the part to be demolded.

2. The demolding auxiliary tool according to claim 1, characterized in that, The support base (1) includes two guide plates (11) spaced apart along a second direction. The moving member (2) is disposed between the two guide plates (11). Each of the two guide plates (11) is provided with a guide rail (111) extending along the first direction on one side facing the moving member (2). The moving member (2) is provided with a guide rail groove (23) extending along the first direction. The guide rail (111) is located in the guide rail groove (23) and the guide rail (111) can slide in the guide rail groove (23).

3. The demolding auxiliary tool according to claim 2, characterized in that, The drive assembly (3) includes a drive shaft (31) and a gear (32). The drive shaft (31) is rotatably passed through the guide plate (11). The gear (32) is fixedly mounted on the drive shaft (31). The moving part (2) is provided with a straight tooth (24) on the side away from the relief groove (21). When the drive shaft (31) rotates around the first clockwise direction, the gear (32) meshes with the straight tooth (24) to drive the moving part (2) to move along the first direction and approach the demolding part.

4. The demolding auxiliary tool according to claim 3, characterized in that, The drive assembly (3) also includes a ratchet wrench (33) which is mounted on the drive shaft (31).

5. The demolding auxiliary tool according to claim 4, characterized in that, The support base (1) further includes a first limiting rod (12) and a second limiting rod (13), the first limiting rod (12) and the second limiting rod (13) are spaced apart along the first direction, and the ratchet wrench (33) is located between the first limiting rod (12) and the second limiting rod (13).

6. The demolding auxiliary tool according to claim 3, characterized in that, The support base (1) includes support wall plates (14) spaced apart along two second directions. Two guide plates (11) are located between the two support wall plates (14). One of the support wall plates (14) is provided with a first connecting hole (141), and the other support wall plate (14) is provided with a second connecting hole (142). The drive shaft (31) passes through the first connecting hole (141) and the second connecting hole (142), and the drive shaft (31) is able to rotate around its own axis within the first connecting hole (141) and the second connecting hole (142).

7. The demolding auxiliary tool according to claim 6, characterized in that, In the first connecting hole (141) and the second connecting hole (142), at least one is rotatably provided with a support ratchet. The drive shaft (31) is fixedly connected to the inner ring of the support ratchet. When the drive shaft (31) rotates in the first connecting hole (141), the support ratchet rotates in the first connecting hole (141).

8. The demolding auxiliary tool according to claim 7, characterized in that, The support base (1) is also provided with a first support pawl, which abuts against the outer edge of the support ratchet, so that the support ratchet can rotate around the first clockwise direction.

9. The demolding aid tool according to any one of claims 1-8, characterized in that, The thickness of the insert (22) at the end near the moving member (2) is greater than the thickness of the insert (22) at the end away from the moving member (2).

10. The demolding aid tool according to any one of claims 1-8, characterized in that, The support base (1) is a magnetic component.

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