Preforming device and uninterrupted forming device

Abstract

The invention provides a pre-forming device and an uninterrupted forming device.The pre-forming device comprises a base body, a pre-forming device body and an uninterrupted forming device body, the material pressing piece is movably arranged, and the material pressing piece is provided with a material pressing surface; the first return device drives the material pressing piece to return to the first initial position under the action of the elastic restoring force; the two demolding piece pressing pieces are movably arranged, each demolding piece pressing piece is provided with a demolding piece pressing face, and the two demolding piece pressing faces are located on the upper side and the lower side of the material pressing face correspondingly; the two second return devices drive the material pressing piece to return to a second initial position under the action of the elastic restoring force; the pressing roller assembly is arranged on the base body and located on the rear side of the material pressing piece and the demolding piece pressing piece. And the control device is in electric control connection with the material pressing piece and the demolding piece pressing piece. By means of the technical scheme, the problems that in the prior art, due to the fact that materials are prone to deviation in the continuous forming process, the production quality is poor, and the production efficiency is low can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of processing equipment, and in particular, to a preforming device and an uninterrupted forming device. Background Art

[0002] The uninterrupted forming process is a key technology in the manufacture of composite products, and is widely used in fields such as automotive parts and aerospace structural parts. However, there are some limitations in the traditional uninterrupted forming equipment during the material conveying and clamping processes. On an uninterrupted forming production line, the precise alignment of the material and the demolding sheet is the key to ensuring the forming quality of the composite product.

[0003] In the prior art, the material and the demolding sheet are usually positioned by a fixed clamping device before entering the hot pressing device. In this way, when the material is pulled through the molding area, since there is no intervening mechanism in the middle, the material is prone to positional deviation inside the mold. Especially during the long-stroke molding process, the bending and deformation problems of the material are more prominent.

[0004] The positional deviation of the material in the mold will not only reduce the forming quality of the product, increase the scrap rate in production, but also affect the dimensional stability of the product, thereby reducing the market competitiveness and economic benefits of the product. Summary of the Invention

[0005] The main object of the present invention is to provide a preforming device and an uninterrupted forming device to solve the problems of poor production quality and low production efficiency caused by the easy deviation of the material during the uninterrupted forming process in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a preforming device is provided, comprising: a base; a material pressing member, movably arranged on the base along a first preset direction n, the material pressing member having a material pressing surface, and the material pressing member having a clamped state and a loosened state; a first return device, cooperating with the material pressing member, and when the material pressing member is in the loosened state, the first return device drives the material pressing member to return to a first initial position under the action of an elastic restoring force; two demolding sheet pressing members, movably arranged on the base along a first preset direction n, the demolding sheet pressing member having a demolding sheet pressing surface, and the two demolding sheet pressing surfaces are respectively located on the material pressing surface The upper demoulding sheet pressing surface and the lower demoulding sheet pressing surface on the lower two sides, the demoulding sheet pressing part has a clamped state and a loosened state; two second return devices, respectively cooperate with the corresponding demoulding sheet pressing parts, when the demoulding sheet pressing parts are in the loosened state, the second return devices drive the material pressing parts to return to the second initial position under the action of the elastic restoring force; a pressure roller assembly, which is arranged on the base and is located on the rear side of the material pressing part and the demoulding sheet pressing part in the first preset direction n, and the pressure roller assembly has a pressing gap for passing the material and the two demoulding sheets; a control device, which is electrically connected to the material pressing part and the demoulding sheet pressing part to control the states of the material pressing part and the demoulding sheet pressing part.

[0007] In one embodiment, two demoulding sheet pressing members are spaced apart in the up-down direction, and there is an escape space for evading materials between the two demoulding sheet pressing members, and the material pressing member is located in front of the two demoulding sheet pressing members in the first preset direction n.

[0008] In one embodiment, the preforming device also includes: a first adjusting device, which is arranged on the base and located on the side of the pressure roller assembly close to the material pressing member, the first adjusting device has an adjusting plate that can be movably arranged along a second preset direction m, the adjusting plate has a top surface that abuts against the side of the material, and the second preset direction m is perpendicular to the first preset direction n.

[0009] In one embodiment, the first adjusting device is located between two demoulding sheet pressing parts in the up-down direction.

[0010] In one embodiment, the demoulding sheet clamping piece includes a fixed plate and a clamping plate that can move up and down. When the demoulding sheet clamping piece switches from a loose state to a clamped state, the clamping plate of the demoulding sheet clamping piece located on the upper side moves downward, and the clamping plate of the demoulding sheet clamping piece located on the lower side moves upward.

[0011] In one embodiment, the preforming device further includes a first slide rail extending along a first preset direction n and a first slider slidably disposed on the first slide rail, and the material pressing member is disposed on the first slider; and / or, the preforming device further includes a second slide rail extending along the first preset direction n and a second slider slidably disposed on the second slide rail, and the demolding sheet pressing member is disposed on the second slider.

[0012] In one embodiment, the first return device and / or the second return device is a spring that provides an elastic restoring force.

[0013] In one embodiment, when the preforming device further includes a first slider and a second slider, and the first return device and the second return device are springs, the preforming device further includes: a first stop member movably disposed on the base body, the first stop member having a first stop position and a first non-working position, when the first stop member is in the first stop position, the first stop member extends into the stroke of the first slider, and when the first stop member is in the first non-working position, the first stop member is at the initial position of the first slider or outside the stroke of the first slider; and / or, a second stop member movably disposed on the base body, the second stop member having a second stop position and a second non-working position, when the second stop member is in the second stop position, the second stop member extends into the stroke of the second slider, and when the second stop member is in the second non-working position, the second stop member is at the initial position of the second slider or outside the stroke of the second slider.

[0014] In one embodiment, the first stop member is electrically connected to the control device, and the second stop member is electrically connected to the control device.

[0015] In one embodiment, the preforming device further includes: a first position sensor for detecting whether the material pressing member moves to a first preset position, the first position sensor being electrically connected to the control device; and / or, two second position sensors corresponding to the two demolding sheet pressing members respectively for detecting whether the corresponding demolding sheet pressing member moves to a second preset position, the second position sensor being electrically connected to the control device.

[0016] According to another aspect of the present invention, an uninterrupted forming device is provided, comprising a discharge device, a preforming device, a hot pressing device and a traction device which are arranged in sequence from front to back, the discharge device comprising a material discharge member and two demolding sheet discharge members which are respectively arranged on the upper and lower sides of the material discharge member, the preforming device is the above-mentioned preforming device, the material of the material discharge member passes through the material pressing member, the pressure roller assembly and the hot pressing device of the preforming device and is pulled by the traction device, the demolding sheet of the demolding sheet discharge member passes through the demolding sheet pressing member, the pressure roller assembly and the hot pressing device of the preforming device and is pulled by the traction device, and the hot pressing device and the traction device are both electrically connected to the control device of the preforming device.

[0017] By applying the technical solution of the present invention, through the dynamic clamping and loosening of the material clamping member and the demolding sheet clamping member, and the use of the elastic potential energy of the return device, it is possible to ensure the stable movement and precise alignment of the material during the uninterrupted molding process, greatly reducing the molding quality problems caused by the displacement of the material position. Under the action of the hot pressing device, the material and the demolding sheet can be fully molded, and the rapid return of the clamping member ensures the high efficiency and smoothness of the uninterrupted molding process, reduces the production downtime time, and improves the production continuity and automation level. In addition, since the material clamping member and the demolding sheet clamping member can move with the material, the material can be continuously stretched straight during the movement, avoiding unnecessary bending or deformation of the material in the mold, further improving the molding quality and dimensional stability of the composite material product, reducing the scrap rate, and improving production efficiency and economic benefits.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a preforming device according to the present invention is shown;

[0021] Figure 2 Shows Figure 1 An enlarged structural schematic diagram of a preforming device at A;

[0022] Figure 3 Shows Figure 2 A partial enlarged view of the B portion of the preforming device;

[0023] Figure 4 Shows Figure 2Partial enlarged view at C of the preforming device;

[0024] Figure 5 showing Figure 1 Partial enlarged view of a cross-sectional view of the preforming device;

[0025] Figure 6 showing Figure 1 Schematic perspective view of a partial structure of the preforming device;

[0026] Figure 7 showing Figure 6 Enlarged schematic view at F of the preforming device;

[0027] Figure 8 showing Figure 6 Schematic perspective view of a partial structure of the preforming device;

[0028] Figure 9 showing Figure 8 Enlarged schematic view at D of the preforming device;

[0029] Figure 10 showing Figure 8 Bottom view schematic of the preforming device;

[0030] Figure 11 Side view schematic showing an embodiment of the continuous forming device according to the present invention;

[0031] Figure 12 showing Figure 11 Schematic perspective view of the continuous forming device. And

[0032] Figure 13 showing Figure 12 Schematic perspective view of a partial structure of the continuous forming device.

[0033] Wherein, the above-mentioned drawings include the following reference numerals:

[0034] 1. Avoidance space; 2. Material; 3. Demolding sheet; 4. First limiting groove; 5. Preformed material; 10. Substrate; 20. Material pressing member; 21. Material pressing surface; 30. First return device; 40. Demolding sheet pressing member; 41. Upper demolding sheet pressing surface; 42. Lower demolding sheet pressing surface; 43. Pressing plate; 44. Fixed plate; 50. Second return device; 60. Pressing roller assembly; 71. First slide rail; 72. First slider; 73. Second slide rail; 74. Second slider; 80. First stop member; 90. Second stop member; 100. First position sensor; 110. Second position sensor; 120. Feeding device; 121. Material feeding member; 122. Demolding sheet feeding member; 140. Hot pressing device; 150. Traction device; 160. First adjusting device; 161. First adjusting base; 162. First limiting member; 163. First adjusting motor; 164. First adjusting lead screw; 165. First adjusting nut; 166. First guide rod; 167. First guiding block; 170. First position adjusting device; 180. First displacement detecting device; 190. Second displacement detecting device; 200. Second position adjusting device; 210. Second adjusting device; 220. Third displacement detecting device; 211. Second limiting member; 212. Second adjusting base; 213. Second adjusting motor; 214. Second adjusting lead screw; 215. Second adjusting nut; 216. Second guide rod; 217. Second guiding block. Detailed implementation manners

[0035] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0036] In order to enable those skilled in the art of this technology to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of the present invention are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so as to implement the embodiments of the present invention described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0039] As Figures 1 to 13 shown, in this embodiment, the preforming device includes: a base body 10, a material pressing member 20, a first return device 30, two demolding sheet pressing members 40, two second return devices 50, a pressing roller assembly 60, and a control device. Among them, the material pressing member 20 is movably arranged on the base body 10 along a first preset direction n. The material pressing member 20 has a material pressing surface 21, and the material pressing member 20 has a clamping state and a loosening state; the first return device 30 cooperates with the material pressing member 20. When the material pressing member 20 is in the loosening state, the first return device 30 drives the material pressing member 20 to return to the first initial position under the action of an elastic restoring force; the two demolding sheet pressing members 40 are movably arranged on the base body 10 along the first preset direction n. The demolding sheet pressing member 40 has a demolding sheet pressing surface. The two demolding sheet pressing surfaces are respectively an upper demolding sheet pressing surface 41 and a lower demolding sheet pressing surface 42 located on the upper and lower sides of the material pressing surface 21. The demolding sheet pressing member 40 has a clamping state and a loosening state; the two second return devices 50 respectively cooperate with the corresponding demolding sheet pressing members 40. When the demolding sheet pressing member 40 is in the loosening state, the second return device 50 drives the material pressing member 20 to return to the second initial position under the action of an elastic restoring force; the pressing roller assembly 60 is arranged on the base body 10 and is located behind the material pressing member 20 and the demolding sheet pressing member 40 in the first preset direction n. The pressing roller assembly 60 has a pressing gap for passing through the material 2 and the two demolding sheets 3; the control device is electrically connected to the material pressing member 20 and the demolding sheet pressing member 40 to control the states of the material pressing member 20 and the demolding sheet pressing member 40.

[0040] By applying the technical solution of this embodiment, in the uninterrupted molding process, the material pressing member 20 and the demolding sheet pressing member 40 switch their states according to the command of the control device. Before the material 2 and the demolding sheet 3 move along the first preset direction n, the material pressing member 20 and the demolding sheet pressing member 40 clamp the material 2 and the upper and lower demolding sheets 3 through the material pressing surface 21, the upper demolding sheet pressing surface 41 and the lower demolding sheet pressing surface 42 respectively. As the material 2 and the demolding sheet 3 are pulled by the traction device 150 and move toward the traction device 150, the material pressing member 20 and the demolding sheet pressing member 40 follow the movement, and the elastic potential energy of the first return device 30 and the second return device 50 gradually accumulates. This is because during the movement of the pressing member, the return device will gradually receive a force opposite to the material movement direction, and the elastic member is compressed or stretched to store energy. When the material 2 and the demolding sheet 3 move a preset distance, the control device controls the hot pressing device 140 to clamp the material 2 and the demolding sheet 3 and start hot pressing. Then, the material pressing member 20 and the demolding sheet pressing member 40 release the material 2 and the demolding sheet 3 under the command of the control device. At this time, the first return device 30 and the second return device 50 release their stored elastic potential energy, driving the material pressing member 20 and the demolding sheet pressing member 40 to quickly return to the first initial position and the second initial position, preparing for the next round of clamping and moving of the material and the demolding sheet. The technical solution of this embodiment is applied, through the dynamic clamping and loosening of the material pressing member 20 and the demolding sheet pressing member 40, and the use of the elastic potential energy of the return device, it is possible to ensure the stable movement and precise alignment of the material in the uninterrupted molding process, greatly reducing the molding quality problems caused by the displacement of the material position. Under the action of the hot pressing device 140, the material 2 and the demolding sheet 3 can be fully molded, and the rapid return of the pressing member ensures the high efficiency and smoothness of the uninterrupted molding process, reduces the production stop time, and improves the production continuity and automation level. In addition, since the material clamping member 20 and the demolding sheet clamping member 40 can move with the material, the material can be continuously stretched straight during the movement, avoiding unnecessary bending or deformation of the material in the mold, further improving the molding quality and dimensional stability of the composite product, reducing the scrap rate, and improving production efficiency and economic benefits.

[0041] The key to this processing flow lies in precisely controlling the clamping and releasing states of the material pressing member 20 and the demolding sheet pressing member 40 through a control device, and adjusting the elastic potential energy of the first return device 30 and the second return device 50, achieving stable movement of the material during the molding process, ensuring the dimensional accuracy and molding quality of the composite product during the production process. Under the synergistic action of the material pressing member 20, the demolding sheet pressing member 40, and the traction device 150, the material can be precisely molded under the action of the hot pressing device 140, and the rapid return of the pressing member ensures the continuity and efficiency of the entire production process, reduces the unplanned downtime during the production process, and improves the comprehensive performance of the production line. This design is particularly suitable for composite products with long-stroke and intermittent production, can effectively solve the problem of unstable molding caused by material offset, and provides strong technical support for the high-quality and uninterrupted production of composites.

[0042] As Figures 1 to 5 shown, in this embodiment, the two demolding sheet pressing members 40 are arranged at intervals in the up and down direction, and there is an avoidance space 1 for avoiding the material 2 between the two demolding sheet pressing members 40. The material pressing member 20 is located in front of the two demolding sheet pressing members 40 in the first preset direction n. In this embodiment, it is proposed to arrange the demolding sheet pressing member 40 and the material pressing member 20 front and back to solve the problems of space utilization and installation convenience. By arranging the demolding sheet pressing member 40 and the material pressing member 20 front and back, the height occupied by the three pressing members is reduced, avoiding increasing the height and space requirements of the equipment, thereby saving the floor area of the production line and improving the flexibility of the production line layout. In addition, the above setting also makes the installation of the demolding sheet pressing member 40 and the material pressing member 20 more convenient. Of course, in other embodiments not shown in the figure, the two demolding sheet pressing members 40 and the material pressing member 20 can be arranged at one position in the first preset direction n and arranged at intervals up and down.

[0043] As Figure 1 、 Figure 2 、 Figures 4 to 6 、 Figures 8 to 10As shown, in this embodiment, the preforming device further includes: a first adjusting device 160, which is disposed on the base body 10 and on the side of the pressure roller assembly 60 close to the material pressing member 20. The first adjusting device 160 has an adjusting plate that is movably disposed along a second preset direction m. The adjusting plate has an abutting surface that abuts against the side of the material 2. The second preset direction m is perpendicular to the first preset direction n. The above structure enables the control device to control the first adjusting device 160 to act if the material 2 is inclined beyond a threshold before entering the pressure roller assembly 60, so that the position of the material 2 in the second preset direction m can be adjusted, thereby further accurately aligning and greatly reducing the molding quality problems caused by the offset of the material position. More importantly, since the release film 3 is wider than the material 2, it is preferably to adjust the material 2 before they are combined together. Therefore, in this embodiment, the first adjusting device 160 is disposed before the pressure roller assembly 60, thereby reducing the possibility of the material 2 offsetting when entering the hot pressing device 140.

[0044] As Figure 1 , Figure 2 , Figures 4 to 6 , Figures 8 to 10 As shown, in this embodiment, the first adjusting device 160 includes: a first adjusting base 161, a first adjusting nut 165, a first adjusting lead screw 164, a first adjusting motor 163, and first limiting members 162 disposed on the left and right sides of the first adjusting base 161. Among them, the first adjusting nut 165 is disposed at the bottom of the first adjusting base 161, the first adjusting lead screw 164 is passed through the first adjusting nut 165, and the first adjusting motor 163 drives the first adjusting lead screw 164 to rotate. Specifically, when the material 2 is inclined beyond a threshold, the first adjusting motor 163 operates to drive the first adjusting lead screw 164 to rotate, and the rotation of the first adjusting lead screw 164 drives the first adjusting nut 165 to move along the second preset direction m. The first limiting member 162 has a first limiting groove 4, and the side edge of the material 2 extends into the first limiting groove 4 and is limited.

[0045] As Figures 8 to 10 As shown, further preferably, in this embodiment, the first adjusting device 160 further includes two first guide rods 166 disposed on both sides of the first adjusting lead screw 164 in the first preset direction n and a first guide block 167 movably disposed on the first guide rods 166. The first guide block 167 is fixedly connected to the first adjusting base 161.

[0046] As Figure 1 , Figure 2 , Figures 4 to 6 , Figures 8 to 10As shown, in this embodiment, the first adjusting device 160 is located between the two demolding sheet pressing members 40 in the up and down direction. The above structure makes full use of the space between the two demolding sheet pressing members 40, and the first adjusting device 160 is arranged in the avoidance space 1, which can effectively shorten the length of the preforming device. That is to say, if the first adjusting device 160 is not arranged in the avoidance space 1, the first adjusting device 160 needs to be arranged between the pressing member and the roller assembly 60, which will lengthen the length between the pressing member and the roller assembly 60. Since the demolding sheet 3 is relatively soft, if it is suspended too long, even with elastic force, it is easy to deform. Therefore, the inventor arranges the first adjusting device 160 in the avoidance space 1. On the one hand, it shortens the length of the preforming device and reduces the floor area of the equipment. On the other hand, it can reduce the probability of deformation of the demolding sheet 3.

[0047] As Figure 2 and Figure 4 shown, in this embodiment, the demolding sheet pressing member 40 includes a fixed plate 44 and a pressing plate 43 that can move up and down. When the demolding sheet pressing member 40 switches from the loose state to the clamping state, the pressing plate 43 of the upper demolding sheet pressing member 40 moves downward, and the pressing plate 43 of the lower demolding sheet pressing member 40 moves upward. The above structure makes the distance between the upper demolding sheet pressing surface 41 and the lower demolding sheet pressing surface 42 and the material pressing surface 21 as small as possible, thereby reducing the angle between the demolding sheet 3 and the material 2, and further reducing the length of the demolding sheet 3 between the demolding sheet pressing member 40 and the roller assembly 60, thus reducing the probability of deformation of the demolding sheet 3. It should be noted that since the fixed plate 44 does not move in the up and down direction, the upper demolding sheet pressing surface 41 is actually the surface of the fixed plate 44 of the upper demolding sheet pressing member 40 facing its corresponding pressing plate 43, and the lower demolding sheet pressing surface 42 is actually the surface of the fixed plate 44 of the lower demolding sheet pressing member 40 facing its corresponding pressing plate 43.

[0048] As Figures 2 to 5As shown, in this embodiment, the preforming device further includes a first slide rail 71 extending along a first preset direction n and a first slider 72 slidably disposed on the first slide rail 71, and the material pressing member 20 is disposed on the first slider 72. The preforming device further includes a second slide rail 73 extending along the first preset direction n and a second slider 74 slidably disposed on the second slide rail 73, and the demolding sheet pressing member 40 is disposed on the second slider 74. Specifically, before the preforming device starts to work, the material pressing member 20 and the demolding sheet pressing member 40 are respectively located on the first slider 72 and the second slider 74. As the material 2 and the demolding sheet 3 move along the first preset direction n under the action of the traction force, the material pressing member 20 and the demolding sheet pressing member 40 follow the movement of the sliders on the slide rails to stretch the material, ensuring its accurate position before entering the hot pressing device. The principle of this design is to provide a stable and accurate movement path for the material pressing member 20 and the demolding sheet pressing member 40 through the cooperation of the slide rails and the sliders. The first slide rail 71 and the first slider 72 ensure the accurate movement of the material pressing member 20 in the first preset direction n, while the second slide rail 73 and the second slider 74 provide the same stability for the demolding sheet pressing member 40. This structure not only simplifies the mechanical design of the equipment, but also ensures that the movement of the pressing members will not be offset due to external factors, improving the operation accuracy and reliability of the preforming device. Of course, in other embodiments not shown in the figure, the guiding structures of the material pressing member 20 and the demolding sheet pressing member 40 can also be a magnetic guiding system, an optical fiber guiding system, etc.

[0049] As Figures 2 to 6 shown, in this embodiment, the first return device 30 and the second return device 50 are springs that provide elastic restoring forces. In the above structure, by utilizing the restoring force characteristics of elastic members such as springs, the ability to automatically reset to the initial position in the state where the material pressing member 20 and the demolding sheet pressing member 40 are loosened is realized. The elastic restoring force ensures that after each pressing action and loosening of the pressing member, it can quickly and accurately return to the set initial position, reducing the equipment adjustment time and improving the operation efficiency of the preforming device. That is to say, the material pressing member 20 and the demolding sheet pressing member 40 can be quickly and accurately reset, avoiding the repeated positioning and calibration processes, significantly improving the working continuity and production efficiency of the preforming device. This design also reduces the mechanical wear of the equipment, extends the service life of the device, and reduces the maintenance cost.

[0050] After long-term research, the inventor found that when the material pressing member 20 loosens the material 2 under the command of the control device, the material pressing member 20 returns to the initial position under the action of the first return device 30. At this time, the position of the demolding sheet 3 close to the hot pressing device 140 may produce a sinking bending section under its own gravity, resulting in an impact on subsequent alignment and product production accuracy modeling. To solve the above problems, as Figure 3As shown, in this embodiment, the preforming device further includes a first stopper 80 movably disposed on the base body 10. The first stopper 80 has a first stopping position and a first non-operating position. When the first stopper 80 is in the first stopping position, the first stopper 80 extends into the stroke of the first slider 72. When the first stopper 80 is in the first non-operating position, the first stopper 80 is at the initial position of the first slider 72 or outside the stroke of the first slider 72. Specifically, after the control device controls the hot pressing device 140 to clamp the material 2 and the release film 3 and starts the hot pressing operation, the control device controls the first stopper 80 to move to the first stopping position. Then, the material pressing member 20 releases the material 2 under the instruction of the control device and moves towards the first stopper 80. When the material pressing member 20 moves to the position blocked by the first stopper 80, the control device controls the material pressing member 20 to switch to the clamping state. At this time, the first stopper 80 is controlled to move to the first non-operating position. Since the first stopper 80 is removed, the material pressing member 20 will also move towards the initial position under the action of the elastic restoring force. In this way, even if there is a bent section at the position of the material 2 close to the hot pressing device 140, it will be straightened, thereby greatly reducing the forming quality problems caused by the position deviation of the material.

[0051] Similarly, as Figure 4 shown, in this embodiment, the preforming device further includes a second stopper 90 movably disposed on the base body 10. The second stopper 90 has a second stopping position and a second non-operating position. When the second stopper 90 is in the second stopping position, the second stopper 90 extends into the stroke of the second slider 74. When the second stopper 90 is in the second non-operating position, the second stopper 90 is at the initial position of the second slider 74 or outside the stroke of the second slider 74. Specifically, after the control device controls the hot pressing device 140 to clamp the material 2 and the release film 3 and starts the hot pressing operation, the control device controls the second stopper 90 to move to the second stopping position. Then, each release film pressing member 40 releases the release film 3 under the instruction of the control device and moves towards the second stopper 90. When the release film pressing member 40 moves to the position blocked by the second stopper 90, the control device controls the release film pressing member 40 to switch to the clamping state. At this time, the second stopper 90 is controlled to move to the second non-operating position. Since the second stopper 90 is removed, the release film pressing member 40 will also move towards the initial position under the action of the elastic restoring force. In this way, even if there is a bent section at the position of the release film 3 close to the hot pressing device 140, it will be straightened, thereby greatly reducing the forming quality problems caused by the position deviation of the release film.

[0052] In this embodiment, the first stopper 80 is electrically connected to the control device, and the second stopper 90 is electrically connected to the control device. The above structure enables the first stopper 80 and the second stopper 90 to automatically move to the stopper position or the non-working position under the command of the control device, realizing the intelligent control of each component of the preforming device. The electrical connection enables the control device to dynamically adjust the position of the stopper according to the real-time production data and the equipment status, thereby optimizing the moving range of the pressing member and the positioning accuracy of the material, and improving the automation level and production efficiency of the entire equipment.

[0053] As Figure 11 shown, it should be noted that in this embodiment, the material 2 and the release film 3 after being hot-pressed by the hot-pressing device 140 form a preformed material 5.

[0054] When, during the traction by the traction device 150, the preformed material 5 slips on the traction device 150, resulting in the moving distance of the material 2 and the release film 3 being less than the preset value, it will cause excessive hot-pressing times for the same section of the preformed material 5, which may affect the product. To avoid the occurrence of the above problems, as Figure 3 and Figure 4 shown, in this embodiment, the preforming device further includes a first position sensor 100 and two second position sensors 110. Among them, the first position sensor 100 is used to detect whether the material pressing member 20 moves to the first preset position, and the first position sensor 100 is electrically connected to the control device. The two second position sensors 110 correspond to the two release film pressing members 40 respectively, and are used to detect whether the corresponding release film pressing member 40 moves to the second preset position, and the second position sensor 110 is electrically connected to the control device. Specifically, the position sensor can provide real-time position feedback, ensuring that after the traction device 150 pulls the preformed material 5 a predetermined distance each time, hot-pressing is performed, ensuring that the hot-pressing times for the same section of the preformed material 5 are relatively fixed and ensuring the product quality.

[0055] As Figure 10 and Figure 13As shown in the figure, the present application also provides an uninterrupted forming device. An embodiment of the uninterrupted forming device according to the present application includes a material feeding device 120, a preforming device, a hot pressing device 140, and a traction device 150 arranged in sequence from front to back. The material feeding device 120 includes a material feeding member 121 and two demolding sheet feeding members 122 respectively arranged on the upper and lower sides of the material feeding member 121. The preforming device is the above-mentioned preforming device. The material 2 of the material feeding member 121 passes through the material pressing member 20, the roller assembly 60 of the preforming device, and the hot pressing device 140 and is tractioned by the traction device 150. The demolding sheet 3 of the demolding sheet feeding member 122 passes through the demolding sheet pressing member 40, the roller assembly 60 of the preforming device, and the hot pressing device 140 and is tractioned by the traction device 150. Both the hot pressing device 140 and the traction device 150 are electrically connected to the control device of the preforming device. Since the above-mentioned preforming device has the advantages of ensuring the stable movement and accurate alignment of the material during the uninterrupted forming process, the uninterrupted forming device having it also has the above advantages.

[0056] The following is through the attached Figure 10 to the attached Figure 13, the working process of the continuous forming device of this embodiment is described. After the feeding of the material 2 and the demolding sheet 3 is completed, the ends of the material 2 and the demolding sheet 3 away from the feeding device 120 cooperate with the traction device 150. When starting processing, first, the control device controls the material pressing member 20 and the demolding sheet pressing member 40 to switch to the clamping state. Then, the traction device 150 starts to traction the material 2 and the demolding sheet 3 to move towards the right side in the figure. As the material 2 and the demolding sheet 3 move, the material 2 and the demolding sheet 3 before the pressure roller assembly 60 enter the pressure gap of the pressure roller assembly 60, so that the material 2 and the upper and lower two demolding sheets 3 are initially pressed together to form a preformed material 5 (it should be noted that in this embodiment, the material 2 itself is a composite material composed of multiple sheets of materials stacked together, and the preformed material 5 here refers to the whole combination of the material 2 and the demolding sheet 3). When the preformed material 5 moves a predetermined distance, the control device controls the hot pressing device 140 to clamp the preformed material 5 and start the hot pressing work. Then, the control device controls the first stop member 80 to move to the first stop position and the second stop member 90 to move to the second stop position. Next, the material pressing member 20 releases the material 2 under the instruction of the control device and moves towards the first stop member 80, and the demolding sheet pressing member 40 releases the demolding sheet 3 under the instruction of the control device and moves towards the second stop member 90. After the material pressing member 20 and the demolding sheet pressing member 40 move to the positions blocked by the first stop member 80 and the second stop member 90, the control device controls the material pressing member 20 and the demolding sheet pressing member 40 to switch to the clamping state. At this time, the control device controls the first stop member 80 to move to the first non-working position and the second stop member 90 to move to the second non-working position. Since the first stop member 80 and the second stop member 90 are removed, the material pressing member 20 and the demolding sheet pressing member 40 return to the first initial position and the second initial position under the action of the elastic restoring force. The above operation completes one-time hot pressing of one section. Then the traction device 150 starts to traction the material 2 and the demolding sheet 3 to move a preset distance towards the right side in the figure, and the subsequent process is the same as the above process. This cycle is repeated multiple times until the processing reaches the preset length.

[0057] In order to solve the problems of low production quality and production efficiency caused by the easy deviation of materials during the continuous forming process in the prior art, in addition to setting the movable material pressing member 20 and the demolding sheet pressing member 40 described above, it can also be solved by setting a plurality of adjusting devices.

[0058] Specifically, as Figures 1 to 13As shown in the figure, the continuous forming device of this embodiment includes: a feeding device 120, a pressure roller assembly 60, a hot pressing device 140, a traction device 150, a first position adjusting device 170, a second displacement detecting device 190, and a control device. Among them, the feeding device 120 includes a material feeding member 121 and two demolding sheet feeding members 122 respectively arranged on the upper and lower sides of the material feeding member 121. The pressure roller assembly 60 is arranged at the rear side of the feeding device 120. The pressure roller assembly 60 has a pressing gap for passing through the material 2 and two demolding sheets 3. The material 2 and the two demolding sheets 3 after passing through the pressing gap form a preformed material 5. The hot pressing device 140 is arranged at the rear side of the pressure roller assembly 60 to hot press the preformed material 5 to form a finished material. The traction device 150 is arranged at the rear side of the hot pressing device 140. The traction device 150 traction the finished material. The first position adjusting device 170 is arranged between the material feeding member 121 and the pressure roller assembly 60. The first position adjusting device 170 includes a first adjusting device 160 and a first displacement detecting device 180. The measuring end of the first displacement detecting device 180 faces the material 2 to detect the moving distance of the material 2 in the offset direction m. The offset direction m is perpendicular to the moving direction n of the material 2. The first adjusting device 160 adjusts the position of the material 2 in the offset direction m. The second displacement detecting device 190 is arranged between the hot pressing device 140 and the traction device 150. The measuring end of the second displacement detecting device 190 faces the finished material to detect the moving distance of the finished material in the offset direction m. The hot pressing device 140, the traction device 150, the first position adjusting device 170, and the second displacement detecting device 190 are all electrically connected to the control device.

[0059] Applying the technical solution of this embodiment, the continuous forming device is composed of a feeding device 120, a pressure roller assembly 60, a hot pressing device 140, a traction device 150, a first position adjusting device 170 and a control device. Among them, the coordinated action of the material feeding member 121 and the demolding sheet feeding member 122 ensures the stable release of the material 2 and the demolding sheets 3 on both sides thereof, providing preliminary structural stability and dimensional consistency for subsequent processes. Subsequently, the pressure roller assembly 60 realizes the close fitting of the material 2 and the demolding sheet 3 through its pressing gap, forming a preformed material 5. The preformed material 5 then enters the hot pressing device 140. At this stage, the material 2 and the demolding sheet 3 are deeply combined under the action of high temperature and pressure to complete the final forming of the composite material, forming a finished material. In the above processing process, precise control of the material position is required to avoid product defects caused by uneven stress distribution. To achieve precise alignment of the material, the technical solution of this embodiment provides a first position adjusting device 170, which is composed of a first adjusting device 160 and a first displacement detection device 180. The first displacement detection device 180 monitors the offset of the material 2 in the direction perpendicular to its moving direction m in real time. Once the detected offset value exceeds the preset threshold, the control device immediately activates the first adjusting device 160 to precisely adjust the position of the material 2 in the offset direction m, ensuring that it reaches the ideal alignment state before entering the pressure roller assembly 60, thereby preventing unstable offset of the material during the molding process and improving the quality of the final finished material. In addition, a second displacement detection device 190 is arranged between the hot pressing device 140 and the traction device 150, and its function is to monitor the position change of the finished material in the offset direction m. By comparing and analyzing the data with that of the first displacement detection device 180, the attitude of all materials on the entire production line can be obtained. The control device not only monitors and controls the operating states of all key components, but also has complex data processing capabilities. It can calculate the offset distance of the material and the offset distance of the finished material based on the real-time offset data provided by the first displacement detection device 180 and the second displacement detection device 190, and when the offset amount reaches the preset threshold, it timely activates the first adjusting device 160 to precisely fine-tune the material, so as to ensure that the position of the preformed material 5 when entering the hot pressing device 140 is more accurate, ensuring the smooth progress of subsequent hot pressing and traction processes, and finally producing a composite material finished product with high quality. Therefore, applying the technical solution of this embodiment solves the problem of material offset in the continuous forming process of composite materials, not only improving the dimensional accuracy and processing quality of the product, but also significantly reducing the scrap rate and optimizing the production efficiency.

[0060] As Figure 4 , Figure 6 , Figures 8 to 10As shown, in this embodiment, the first adjusting device 160 includes a first limiting member 162 movably arranged along the offset direction m. A first limiting groove 4 extending along the movement direction n of the material 2 is provided on the first limiting member 162, and the material 2 is inserted into the first limiting groove 4. Specifically, the first limiting member 162 in the first adjusting device 160 can effectively limit and guide the side of the material 2 through its first limiting groove 4 extending along the movement direction n of the material, ensuring the straightness and position accuracy of the material before entering the pressure roller assembly 60. The material 2 is inserted into the first limiting groove 4, and under the precise movement of the first limiting member 162 along the offset direction m, fine adjustment of the material position can be realized, thereby greatly reducing the molding instability and dimensional consistency problems caused by position offset of the material during the molding process.

[0061] It should be noted that the dynamic adjustability of the first limiting member 162 is the key to achieving this effect. During the movement of the material 2 towards the pressure roller assembly 60, any slight offset may be amplified in subsequent molding steps, affecting the dimensional stability and quality of the finished material. By the first displacement detection device 180, the movement of the material in the offset direction m is monitored in real time. When the detected offset value exceeds the preset threshold, the control device will activate the first adjusting device 160 to drive the first limiting member 162 to perform fine adjustment along the offset direction m, and the material 2 moves a preset distance in the offset direction m under the abutment of the groove wall of the first limiting groove 4 of the first limiting member 162. This precise control of the material position provides a more stable foundation for the subsequent preformed material 5, ensuring uniform stress distribution of the material during the hot pressing molding process and avoiding poor quality of the finished product caused by material offset.

[0062] As Figure 4 , Figure 6 , Figures 8 to 10 As shown, in this embodiment, the first adjusting device 160 further includes a first adjusting seat 161. The first limiting member 162 is L-shaped, and there are two first limiting members 162 arranged on the left and right sides of the first adjusting seat 161. The first limiting grooves 4 of the two first limiting members 162 are arranged oppositely, and the two edges of the material 2 respectively extend into the first limiting grooves 4 of the two first limiting members 162, and the first adjusting seat 161 is movably arranged along the offset direction m. Specifically, the two L-shaped first limiting members 162 are in close contact with the two edges of the material 2. Through the constraint of the first limiting groove 4, the free movement of the material in the offset direction m is effectively restricted, ensuring the position stability of the material before entering the pressure roller assembly 60. This design of bilateral limiting, combined with the movable adjustment of the first adjusting seat 161 along the offset direction m, can instantaneously fine-tune the position of the material, avoid the position offset of the material in the subsequent molding process, significantly improve the dimensional consistency and molding quality of the preformed material 5, reduce the rejection rate of the finished material, and improve the production efficiency.

[0063] As shown Figures 8 to 10 In this embodiment, the first adjusting device 160 further includes a first adjusting motor 163, a first adjusting lead screw 164 driven by the first adjusting motor 163 to rotate, and a first adjusting nut 165 threadedly engaged with the first adjusting lead screw 164. The first adjusting lead screw 164 extends along the offset direction m, and the first adjusting nut 165 is disposed at the bottom of the first adjusting seat 161. The technical solution of this embodiment has strong improvements in two aspects. First aspect: The technical solution of this embodiment significantly improves the response speed and accuracy of the fine adjustment of the position of the material 2, ensuring the position stability and alignment accuracy of the material before entering the pressure roller assembly 60. Since the first adjusting motor 163 can quickly respond to the control instruction, by driving the first adjusting lead screw 164 to rotate, and then driving the first adjusting nut 165 threadedly engaged therewith to move along the offset direction m, this series of mechanical linkages enables the first limiting member 162 on the first adjusting seat 161 to quickly and accurately adjust the position of the material 2 in the offset direction m, avoiding the unstable offset of the material during the molding process, and improving the dimensional consistency and quality of the finished material. Second aspect: Through the lead screw-nut mechanism driven by the motor, the first adjusting device 160 can achieve accurate and stable displacement in the set offset direction m. Compared with other adjusting methods, such as hydraulic or pneumatic control, the lead screw-nut system provides a more stable torque output and more accurate position control, ensuring the stability and repeatability of the position adjustment of the material 2, and reducing the production fluctuations and scrap rate caused by inaccurate or unstable adjustment.

[0064] Preferably, as Figure 10 In this embodiment, the first adjusting device 160 further includes a first guide rod 166 and a first guide block 167. The first guide rod 166 extends along the offset direction m and is disposed on the base body 10, and the first guide block 167 is slidably disposed on the first guide rod 166, and the first guide block 167 is fixedly connected to the first adjusting seat 161. The above-mentioned first guide rod 166 and first guide block 167 can play a guiding and limiting role for the first adjusting seat 161.

[0065] As shown Figures 6 to 9 In this embodiment, the first displacement detection device 180 is disposed on the first adjusting seat 161. The above structure makes the position between the first displacement detection device 180 and the first adjusting seat 161 fixed. Therefore, the measurement is less affected by the external environment, and it can timely feedback whether the first limiting member 162 pushes the material 2 to the appropriate position, with higher control accuracy and facilitating the realization of precise position adjustment.

[0066] In this embodiment, the first displacement detection device 180 and the second displacement detection device 190 are laser detection devices. The above structure is simple and low in cost. Of course, in other embodiments not shown in the figure, the first displacement detection device 180 and the second displacement detection device 190 can also be ultrasonic detection devices or vision detection devices.

[0067] As Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 10 shown, in this embodiment, the continuous forming device further includes: a second position adjusting device 200, the second position adjusting device 200 is arranged between the pressing roller assembly 60 and the hot pressing device 140, the second position adjusting device 200 includes a second adjusting device 210 and a third displacement detection device 220, the measuring end of the third displacement detection device 220 faces the preformed material 5 to detect the moving distance of the preformed material 5 in the offset direction m, the second adjusting device 210 adjusts the position of the preformed material 5 in the offset direction m, and the second position adjusting device 200 is electrically connected to the control device. The above structure has the following three functions. First, the width of the material 2 in the offset direction m is smaller than that of the release film 3. Through the double detection and adjustment of the first position adjusting device 170 and the second position adjusting device 200, the relative position between the material 2 and the release film 3 in the preformed material 5 can be effectively controlled, ensuring the accurate positioning of the material within the release film and reducing the forming defects caused by the offset of the material position. Second, the third displacement detection device 220 can monitor the moving distance of the preformed material 5 in the offset direction m in real time. Once it detects that the position of the preformed material 5 has deviated beyond the threshold, the second adjusting device 210 will respond quickly and adjust the position of the preformed material 5 to ensure the accurate alignment of the preformed material 5 when it enters the hot pressing device 140, improving the quality of the finished product. Third, the instant detection and adjustment function of the second position adjusting device 200 can effectively avoid the shutdown caused by the offset of the preformed material 5 during the production process, maintain the production continuity, reduce the production interruption time, and greatly improve the production efficiency and automation level.

[0068] It should be noted that, in this embodiment, the first position adjusting device 170, the pressing roller assembly 60, and the second position adjusting device 200 are arranged on the base 10. The base 10 can be an entire frame or a structure composed of multiple frames. The bottom of the frame can be provided with moving wheels and support legs that can be adjusted in height.

[0069] As Figure 6 , Figure 7 and Figure 10As shown, in this embodiment, the second adjusting device 210 includes a second limiting member 211 movably arranged along the offset direction m. A second limiting groove extending along the movement direction n of the material 2 is provided on the second limiting member 211, and the preformed material 5 is threaded through the second limiting groove. Specifically, the second limiting member 211 in the second adjusting device 210 can effectively limit and guide the side edges of the preformed material 5 through its second limiting groove extending along the movement direction n of the material, ensuring the straightness and position accuracy of the preformed material 5 before entering the hot pressing device 140. The preformed material 5 is threaded through the second limiting groove, and under the precise movement of the second limiting member along the offset direction m, fine adjustment of the position of the preformed material 5 can be achieved, thereby greatly reducing the molding instability and dimensional consistency problems caused by position offset of the preformed material 5 during the molding process.

[0070] As Figure 6 , Figure 7 and Figure 10 shown, in this embodiment, the second adjusting device 210 further includes a second adjusting base 212. The second limiting member 211 is L-shaped, and there are two second limiting members 211 arranged on the left and right sides of the second adjusting base 212. The second limiting grooves of the two second limiting members 211 are arranged oppositely, and the two edges of the preformed material 5 respectively extend into the second limiting grooves of the two second limiting members 211. The second adjusting base 212 is movably arranged along the offset direction m. Specifically, the two L-shaped second limiting members 211 are in close contact with the two edges of the preformed material 5. Through the constraint of the second limiting groove, the free movement of the preformed material 5 in the offset direction m is effectively restricted, ensuring the position stability of the preformed material 5 before entering the hot pressing device 140. This bilateral limiting design, combined with the movable adjustment of the second adjusting base 212 along the offset direction m, can instantaneously fine-tune the position of the preformed material 5, avoid the position offset of the preformed material 5 during the subsequent molding process, significantly improve the dimensional consistency and molding quality of the finished material, reduce the rejection rate of the finished material, and improve production efficiency.

[0071] As Figure 6 , Figure 7 and Figure 10 shown, in this embodiment, the third displacement detection device 220 is arranged on the second adjusting base 212. Similar to the effect of the aforementioned first displacement detection device 180 arranged on the first adjusting base 161, the above structure makes the position between the third displacement detection device 220 and the second adjusting base 212 fixed. Therefore, the measurement is less affected by the external environment, can timely feedback whether the second limiting member 211 pushes the preformed material 5 to the appropriate position, has a high control accuracy, and is convenient for realizing precise position adjustment.

[0072] As Figure 6 , Figure 7 and Figure 10As shown, in this embodiment, the second adjustment device 210 further includes a second adjustment motor 213, a second adjustment lead screw 214 driven by the second adjustment motor 213 to rotate, and a second adjustment nut 215 threadedly engaged with the second adjustment lead screw 214. The second adjustment lead screw 214 extends along the offset direction m, and the second adjustment nut 215 is disposed at the bottom of the second adjustment seat 212. Similar to the aforementioned effects, the above structure has two aspects of effects. The first aspect: The technical solution of this embodiment significantly improves the response speed and accuracy of the fine adjustment of the position of the preformed material 5, ensuring the position stability and alignment accuracy of the preformed material 5 before entering the hot pressing device 140. The second aspect: Through the lead screw-nut mechanism driven by the motor, the second adjustment device 210 can achieve accurate and stable displacement in the set offset direction m. Compared with other adjustment methods, such as hydraulic or pneumatic control, the lead screw-nut system provides a more stable torque output and more precise position control, ensuring the stability and repeatability of the position adjustment of the preformed material 5, and reducing production fluctuations and scrap rates caused by inaccurate or unstable adjustment.

[0073] Preferably, in this embodiment, the second adjustment device 210 further includes a second guide rod 216 and a second guide block 217. The second guide rod 216 extends along the offset direction m and is disposed on the base body 10. The second guide block 217 is slidably disposed on the second guide rod 216, and the second guide block 217 is fixedly connected to the second adjustment seat 212. The second guide rod 216 and the second guide block 217 can play a role in guiding and limiting the second adjustment seat 212.

[0074] In this embodiment, the preforming device at least includes a base body 10, a material pressing member 20, a first return device 30, two demolding sheet pressing members 40, two second return devices 50, a pressure roller assembly 60, a control device, a first stop member 80, a second stop member 90, a first position adjustment device 170, and a second position adjustment device 200.

[0075] Finally, the adjustment strategy will be introduced in detail. The first displacement detection device 180 monitors in real time the distance that the material moves in the offset direction m. The second displacement detection device 190 detects the distance that the finished material moves in the offset direction m. The third displacement detection device 220 detects the distance that the preformed material 5 moves in the offset direction m. The three displacement detection devices detect the offset conditions of the materials on the entire production line. The offset conditions include the offset of the front-end material (the offset of the material 2 before hot pressing), the offset of the front-end preformed material (the offset of the preformed material 5 of the material before hot pressing), the overall offset of the front-end material and the preformed material 5, the offset of the rear-end finished material, and the offset of both the front-end and the rear-end. When the front-end is offset, during adjustment, the hot pressing device 140 can be lowered, and then the positions of the material 2 and the preformed material 5 can be adjusted respectively through the first adjustment device 160 and the second adjustment device 210. When the rear-end is offset, all the pressing devices including the hot pressing device 140, the material pressing member 20, the demolding sheet pressing member 40, and the traction device 150 need to be loosened, and then the hot pressing device 140 is lowered. Since the hot pressing device 140 is provided with guiding inclined surfaces arranged oppositely along the offset direction m, and the two guiding inclined surfaces gradually contract from top to bottom, during the process of lowering the hot pressing device 140, the rear-end finished material is corrected under the guidance of the guiding inclined surfaces (certainly, in other embodiments, the position of the relatively hard rear-end finished material can be adjusted by a push plate or manual pushing). The control device will select the corresponding offset strategy to adjust the material according to the specific offset conditions of the material.

[0076] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of description, the sizes of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0077] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations are made for the spatial relative descriptions used here.

[0078] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0079] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A preforming device, characterized in that: include: A substrate (10); A material pressing member (20) is movably arranged on the base (10) along a first preset direction n, the material pressing member (20) has a material pressing surface (21), and the material pressing member (20) has a clamping state and a loosening state; A first return device (30) cooperates with the material pressing member (20), and when the material pressing member (20) is in the released state, the first return device (30) drives the material pressing member (20) to return to the first initial position under the action of an elastic restoring force; Two demoulding sheet pressing members (40) are movably arranged on the base (10) along the first preset direction n, the demoulding sheet pressing members (40) having a demoulding sheet pressing surface, the two demoulding sheet pressing surfaces are respectively an upper demoulding sheet pressing surface (41) and a lower demoulding sheet pressing surface (42) located on the upper and lower sides of the material pressing surface (21), and the demoulding sheet pressing member (40) has a clamped state and a loosened state; Two second return devices (50) are respectively matched with the corresponding demoulding sheet pressing parts (40), and when the demoulding sheet pressing parts (40) are in the released state, the second return devices (50) drive the material pressing parts (20) to return to the second initial position under the action of the elastic restoring force; A pressing roller assembly (60) is arranged on the base (10) and is located at the rear side of the material pressing member (20) and the demoulding sheet pressing member (40) in the first preset direction n, and the pressing roller assembly (60) has a pressing gap for passing the material (2) and the two demoulding sheets (3); A control device is electrically connected to the material pressing member (20) and the demoulding sheet pressing member (40) to control the states of the material pressing member (20) and the demoulding sheet pressing member (40).

2. The preforming device according to claim 1, characterized in that: The two demoulding sheet pressing members (40) are spaced apart in the up-down direction, and an escape space (1) for evading the material (2) is provided between the two demoulding sheet pressing members (40), and the material pressing member (20) is located in front of the two demoulding sheet pressing members (40) in the first preset direction n.

3. The preforming device according to claim 2, characterized in that The preforming device also includes: The first adjusting device (160) is arranged on the base (10) and is located on a side of the pressing roller assembly (60) close to the material pressing member (20). The first adjusting device (160) has an adjusting plate that can be movably arranged along a second preset direction m. The adjusting plate has a contact surface that contacts the side of the material (2). The second preset direction m is perpendicular to the first preset direction n.

4. The preforming device according to claim 3, characterized in that: The first adjustment device (160) is located between the two demoulding sheet pressing members (40) in the up and down directions.

5. The preforming device according to claim 2, characterized in that: The demoulding sheet clamping member (40) comprises a fixing plate (44) and a clamping plate (43) which can move up and down. When the demoulding sheet clamping member (40) switches from the loose state to the clamping state, the clamping plate (43) of the demoulding sheet clamping member (40) located on the upper side moves downward, and the clamping plate (43) of the demoulding sheet clamping member (40) located on the lower side moves upward.

6. The preforming device according to claim 1, characterized in that: The preforming device further comprises a first slide rail (71) extending along the first preset direction n and a first slider (72) slidably disposed on the first slide rail (71), and the material pressing member (20) is disposed on the first slider (72); and / or the preforming device further comprises a second slide rail (73) extending along the first preset direction n and a second slider (74) slidably disposed on the second slide rail (73), and the demolding sheet pressing member (40) is disposed on the second slider (74).

7. The preforming device according to claim 6, characterized in that The first return device (30) and / or the second return device (50) is a spring that provides an elastic restoring force.

8. The preforming device according to claim 7, characterized in that In the case where the preforming device further includes the first slider (72) and the second slider (74), and the first return device (30) and the second return device (50) are the springs, the preforming device further includes: a first stopper (80) movably disposed on the base (10), the first stopper (80) having a first stop position and a first non-working position, wherein when the first stopper (80) is located at the first stop position, the first stopper (80) extends into the stroke of the first slider (72), and when the first stopper (80) is located at the first non-working position, the first stopper (80) is located at the initial position of the first slider (72) or outside the stroke of the first slider (72); and / or, The second stop member (90) is movably arranged on the base (10), and the second stop member (90) has a second stop position and a second non-working position. When the second stop member (90) is located at the second stop position, the second stop member (90) extends into the stroke of the second slider (74). When the second stop member (90) is located at the second non-working position, the second stop member (90) is located at the initial position of the second slider (74) or outside the stroke of the second slider (74).

9. The preforming device according to claim 8, characterized in that The first stopper (80) is electrically connected to the control device, and the second stopper (90) is electrically connected to the control device.

10. The preforming device according to claim 1, characterized in that: The preforming device also includes: a first position sensor (100) for detecting whether the material pressing member (20) moves to a first preset position, the first position sensor (100) being electrically connected to the control device; and / or, Two second position sensors (110) correspond to two demoulding sheet pressing members (40) respectively, and are used to detect whether the corresponding demoulding sheet pressing members (40) move to a second preset position. The second position sensors (110) are electrically connected to the control device.

11. An uninterrupted forming device, comprising a discharge device (120), a preforming device, a hot pressing device (140) and a traction device (150) arranged in sequence from front to back, characterized in that: The discharge device (120) includes a material discharge member (121) and two demoulding sheet discharge members (122) respectively arranged on the upper and lower sides of the material discharge member (121); the preforming device is the preforming device described in any one of claims 1 to 10; the material (2) of the material discharge member (121) passes through the material clamping member (20) of the preforming device, the pressure roller assembly (60) and the hot pressing device (140) and is pulled by the traction device (150); the demoulding sheet (3) of the demoulding sheet discharge member (122) passes through the demoulding sheet clamping member (40) of the preforming device, the pressure roller assembly (60) and the hot pressing device (140) and is pulled by the traction device (150); the hot pressing device (140) and the traction device (150) are both electrically connected to the control device of the preforming device.

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