Protective sheet molding device

Abstract

The utility model relates to the technical field of electric core welding, disclose protection sheet forming device. Protection sheet forming device has first direction Z, including first mould, second mould, drive assembly, first stripping part and first elastic piece, and one end of first mould along first direction is equipped with forming frame, and one end of second mould along first direction is provided with forming block, and drive assembly is used for driving first mould and second mould to be close to each other or away from each other in first direction, and first stripping part is at least partially worn in forming frame and can slide along first direction relative to forming frame, wherein, forming frame, first stripping part and forming block are relatively arranged along first direction, and first elastic piece is connected in first stripping part, and first stripping part can be driven and moves along forming frame to the direction of being close to second mould. The utility model can make the protection sheet of high consistency, thereby better protection tab when welding, and first stripping part can make the protection sheet separate from forming frame.

Description

Technical Field

[0001] This utility model relates to the field of battery cell welding technology, specifically to a protective sheet forming device. Background Technology

[0002] When ultrasonically welding battery cells, a protective sheet is usually placed over the electrode to be welded to prevent the welding head from directly contacting the electrode and causing it to tear. Because the protective sheet is thin and light, it is difficult to place it accurately. Related technologies have explored manually bending the protective sheet to improve the positioning effect.

[0003] However, manual bending suffers from inconsistent results. Fluctuations in the shape of the protective sheet can easily lead to positional fluctuations, thus affecting the welding yield. Some existing protective sheet forming molds, including a die head and a mating cavity, bend the protective sheet by pressing the two together to achieve the forming purpose. However, the pressed protective sheet tends to stick tightly to the die head or cavity and is difficult to remove. Utility Model Content

[0004] In view of this, the present invention provides a protective sheet forming device to solve the problem that the protective sheet is difficult to remove from the mold after forming.

[0005] This utility model provides a protective sheet forming device with a first direction, including a first mold, a second mold, a driving component, a first demolding component, and a first elastic component. The first mold is provided with a forming frame at one end along the first direction, and the second mold is provided with a forming block at one end along the first direction. The driving component is used to drive the first mold and the second mold to move closer or further away from each other in the first direction. The first demolding component is at least partially inserted through the forming frame and can slide relative to the forming frame along the first direction.

[0006] The molding frame, the first demolding component, and the molding block are arranged opposite to each other along the first direction and are configured such that when the first mold and the second mold are close to each other, the molding frame, the first demolding component, and the molding block can jointly abut against the protective sheet to bend and form it.

[0007] The first elastic element is connected to the first demolding element, and the first elastic element is configured to drive the first demolding element to move along the molding frame toward the second mold when the first mold and the second mold are far apart, and to disengage the protective sheet from the molding frame.

[0008] Beneficial effects: The protective sheet forming device can use the first mold and the second mold to batch bend and produce protective sheets with high consistency, thereby better protecting the electrode tabs during welding and reducing the risk of the electrode tabs being torn; the first demolding component applies a force along the first direction to the protective sheet after stamping, causing the protective sheet to separate from the forming frame, which can avoid the situation where the protective sheet and the forming frame are too tightly bonded and cannot be separated.

[0009] In one optional embodiment, the system further includes a second demolding member and a second elastic member. The molding block also has a second demolding hole extending along the first direction. The second demolding hole is disposed opposite to the molding frame along the first direction. The second demolding member is at least partially inserted into the second demolding hole. The second elastic member is connected to the second demolding member and is configured to drive the second demolding member to move along the second demolding hole toward the direction of the first mold. The molding frame is configured to extend into the second demolding hole when the first mold and the second mold are close to each other.

[0010] In one optional embodiment, the first mold further has a first demolding hole extending along the first direction, and the molding frame is arranged around the first demolding hole; the first demolding member is disposed in the first demolding hole and connected to the first elastic member.

[0011] In one optional embodiment, the first mold has a first mounting hole extending along the first direction, the first mounting hole communicating with the first demolding hole; the first demolding member includes a first pushing part and a first base connected to each other, the first pushing part is disposed at one end of the first base facing the second mold, the first base is received in the first mounting hole and connected to the first elastic member, the first pushing part at least partially passes through the first demolding hole, and the first demolding hole limits the first base to prevent the first base from passing through the first demolding hole.

[0012] In one optional embodiment, the second mold has a second mounting hole extending along the first direction, the second mounting hole communicating with the second demolding hole; the second demolding member includes a second push portion and a second base portion connected to each other; the second push portion is received in the second mounting hole and connected to the second elastic member, the second push portion at least partially passes through the second demolding hole, and the second demolding hole limits the second base portion to prevent the second base portion from passing through the second demolding hole.

[0013] In one optional embodiment, the system further includes a first mold base and a second mold base disposed opposite to each other along the first direction, wherein the first mold base is detachably disposed on the side of the first mold base facing the second mold base, and the second mold base is detachably disposed on the side of the second mold base facing the first mold base; wherein the first mold base covers the first demolding hole and is connected to the first elastic member; and / or the second mold base covers the second mounting hole and is connected to the second elastic member.

[0014] In one optional embodiment, the device further includes a first guide member disposed on the first mold base and extending along the first direction, the first demolding member having a first connecting hole and the first guide member passing through the first connecting hole, the first demolding member being slidable relative to the first guide member; and / or further includes a second guide member disposed on the second mold base and extending along the first direction, the second demolding member having a second connecting hole and the second guide member passing through the second connecting hole, the second demolding member being slidable relative to the second guide member.

[0015] In one optional embodiment, the molded block is further provided with a positioning groove at one end facing the first mold, the positioning groove being arranged around the second demolding hole, and the positioning groove being used to position the protective sheet.

[0016] In one alternative embodiment, the drive assembly includes a press comprising a base and a press head opposite each other in the first direction, a first mold base disposed on the press head, a second mold base connected to the base, and the press head being movable toward or away from the base along the first direction.

[0017] In one alternative embodiment, the molding block protrudes from the side of the second mold facing the first mold, and the molding block is configured such that when the first mold and the second mold are close to each other, the molding block can extend into the molding frame. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the protective sheet forming device according to an embodiment of the present invention.

[0020] Figure 2 for Figure 1 A partial structural schematic diagram of the protective sheet forming apparatus in the embodiment;

[0021] Figure 3 for Figure 1 A partial structural schematic diagram of the protective sheet forming apparatus in the embodiment;

[0022] Figure 4 A schematic diagram illustrating the principle of ultrasonic welding using the protective sheet made according to this utility model;

[0023] Figure 5 This is a cross-sectional view of a protective sheet forming device according to another embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 101. First mold; 1011. Molding frame; 1012. First demolding hole; 1013. First mounting hole; 102. First demolding component; 1021. First push part; 1022. First base; 103. First elastic component; 104. First mold base; 201. Second mold; 2011. Molding block; 2012. Second demolding hole; 2013. Second mounting hole; 2014. Positioning groove; 202. Second demolding component; 2021. Second push part; 2022. Second base; 2023. Second connecting hole; 203. Second elastic component; 204. Second mold base; 205. Second guide component; 301. Base; 302. Pressure head; 401. Third guide component; 6. Battery cell; 7. Welding base; 8. Positioning plate; 9. Protective plate; Z, First direction. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a," "an," and "comprising" as used herein may also mean including the plural forms. The terms "comprising," "including," and "having" are inclusive and therefore indicate the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0028] Although terms such as "first," "second," etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Furthermore, in the description of this utility model, unless otherwise expressly specified and limited, the terms "set up" and "connected" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "end," "length," "inner," "outer," etc. Such spatial relative terms are intended to include different orientations of the mechanism in use or operation, in addition to those depicted in the figure. For example, if the mechanism in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The mechanism may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0030] In the ultrasonic welding of electrode tabs, the battery cell is placed on the welding base, a positioning plate with welding holes presses down on the electrode tab, and the area to be welded on the electrode tab is located in the welding hole. A protective sheet is placed in the welding hole, and the welding head presses down on the protective sheet to weld the electrode tab.

[0031] Because the protective sheet is relatively thin, it is prone to misalignment when inserted into the welding hole, resulting in it not completely covering the electrode. The welding teeth of the welding head then directly act on the surface of the electrode, tearing it. Some related technologies involve manually bending the protective sheet to improve positioning; however, manual bending is limited in method and suffers from inconsistency. Fluctuations in the shape of the protective sheet can cause positional fluctuations, thus affecting the welding yield. Additionally, current protective sheet forming molds utilize a die head and a mating cavity to press and bend the protective sheet for shaping. However, the pressed protective sheet tends to stick tightly to the die head or cavity, making it difficult to remove and inconvenient to use.

[0032] The following is combined Figures 1 to 5 The following describes embodiments of the present invention.

[0033] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a protective sheet forming device. The protective sheet forming device has a first direction Z and includes a first mold 101, a second mold 201, a driving assembly, a first demolding member 102, and a first elastic member 103. The first mold 101 is provided with a forming frame 1011 at one end along the first direction Z. The second mold 201 is provided with a forming block 2011 at one end along the first direction Z (referring to the end of the second mold 201 located near the first mold 101). The driving assembly is used to drive the first mold 101 and the second mold 201 to move closer or further away from each other in the first direction Z. The first demolding member 102 is at least partially inserted in the forming frame 1011 and can slide relative to the forming frame 1011 in the first direction Z.

[0034] The molding frame 1011, the first demolding member 102, and the molding block 2011 are arranged opposite to each other along the first direction Z, and are configured such that when the first mold 101 and the second mold 201 approach each other, the molding frame 1011, the first demolding member 102, and the molding block 2011 can jointly abut against the protective sheet 9 to bend and form it.

[0035] The first elastic element 103 is connected to the first demolding element 102, and the first elastic element 103 is configured to drive the first demolding element 102 to move along the molding frame 1011 toward the direction of the second mold 201 when the first mold 101 and the second mold 201 are far apart from each other, and to cause the protective piece 9 to detach from the molding frame 1011.

[0036] First, the protective sheet forming device can bend the protective sheet 9, thereby increasing the height of the protective sheet 9, making it suitable for handling and accurate placement in the welding hole, thus better protecting the electrode tab during welding and reducing the risk of the electrode tab being torn.

[0037] For example, in Figure 4 In the illustrated embodiment, the positioning plate 8 presses down on the tab of the battery cell 6, and the protective sheet 9 is placed in the welding hole opened in the positioning plate 8. The edge of the protective sheet 9 is bent upward to form a vertically extending flange. The flange can increase the contact area with the side wall of the welding hole, which helps to more reliably position the protective sheet 9 in the positioning plate 8 and prevents the protective sheet 9 from being placed at an angle in the welding hole. Of course, Figure 4 This invention is only intended to illustrate one molding method of the protective sheet 9. In other embodiments not shown, the protective sheet 9 may also be molded into other shapes, and this invention does not limit this.

[0038] Secondly, by using the first mold 101 and the second mold 201, the protective sheet forming device can mass-produce protective sheets 9 with high consistency, avoiding the interference of the shape fluctuation of the protective sheet 9 on the welding yield.

[0039] Finally, the first demolding component 102 applies a force along the first direction Z to the protective sheet 9 after stamping, causing the protective sheet 9 to detach from the forming frame 1011. This avoids the situation where the protective sheet 9 and the forming frame 1011 are too tightly bonded and cannot be separated. After the protective sheet 9 is pressed and formed, when the first mold 101 and the second mold 201 separate, the protective sheet 9 can automatically detach from the forming frame 1011 under the push of the first demolding component 102.

[0040] Understandably, generally speaking, the first direction Z is the vertical direction. In this case, one of the first mold 101 and the second mold 201 is located above, and the other is located below, for example, in... Figure 1 , Figure 2 , Figure 3 In the illustrated embodiment, the first mold 101 is located above and the second mold 201 is located below. The protective sheet 9 to be formed can be stably placed on top of the second mold 201 by its own gravity without the need for pre-fixation by other structures, which helps to simplify the structural design of the protective sheet forming device.

[0041] In other embodiments, the first mold 101 may be located below, while the second mold 201 may be located above.

[0042] The following is for reference Figure 1 , Figure 2 , Figure 3 The illustrated embodiment further describes the protective sheet forming apparatus.

[0043] Optionally, the protective sheet forming device further includes a second demolding member 202 and a second elastic member 203. The forming block 2011 also has a second demolding hole 2012 extending along the first direction Z. The second demolding hole 2012 is disposed opposite to the forming frame 1011 along the first direction Z. The second demolding member 202 is at least partially inserted into the second demolding hole 2012. The second elastic member 203 is connected to the second demolding member 202 and is configured to drive the second demolding member 202 to move along the second demolding hole 2012 toward the first mold 101. The forming frame 1011 is configured to extend into the second demolding hole 2012 when the first mold 101 and the second mold 201 are close to each other.

[0044] During molding, the protective sheet 9 is first placed above the second demolding hole 2012. The first mold 101 and the second mold 201 are brought close together. The molding frame 1011 presses the protective sheet 9 into the second demolding hole 2012. The molding frame 1011, the first demolding component 102, the second demolding component 202, and the molding block work together on the protective sheet 9, causing it to bend and deform. During this process, the pressure on the first demolding component 102 and the second demolding component 202 acts on the first elastic component 103 and the second elastic component 203, respectively, giving them elastic potential energy.

[0045] After molding is completed, the first mold 101 and the second mold 201 move away from each other. The first elastic element 103 and the second elastic element 203 release elastic potential energy. The first elastic element 103 causes the first demolding element 102 to move relative to the molding frame 1011, pushing the protective sheet 9 and the molding frame 1011 to separate. The second elastic element 203 causes the second demolding element 202 to move relative to the second demolding hole 2012, pushing the protective sheet 9 and the second demolding hole 2012 to separate, thereby preventing the protective sheet 9 from sticking together with the molding frame 1011 and the molding block, and reliably separating the protective sheet 9 and the protective sheet molding device.

[0046] It is understood that the first elastic element 103 and the second elastic element 203 may use compression springs, tension springs, torsion springs, air springs (e.g., pistons), and other designs capable of storing and releasing elastic potential energy. For example, refer to... Figure 2 and Figure 3 The first mold 101 also has a first demolding hole 1012 extending along the first direction Z, and the molding frame 1011 is arranged around the first demolding hole 1012; the first demolding member 102 is disposed in the first demolding hole 1012 and connected to the first elastic member 103. At this time, the first elastic member 103 is suitable to be a compression spring, and the first elastic member 103 is located above the first demolding member 102, and pushes the first demolding member 102 downward by elastic force.

[0047] Furthermore, referring to Figure 3 The first mold 101 has a first mounting hole 1013 extending along the first direction Z, and the first mounting hole 1013 communicates with the first demolding hole 1012; the first demolding member 102 includes a first pushing part 1021 and a first base 1022 connected to each other. The first pushing part 1021 is disposed at one end of the first base 1022 facing the second mold 201. The first base 1022 is accommodated in the first mounting hole 1013 and connected to the first elastic member 103. The first pushing part 1021 at least partially passes through the first demolding hole 1012. The first demolding hole 1012 limits the first base 1022 to prevent the first base 1022 from passing through the first demolding hole 1012.

[0048] Specifically, the projection of the first demolding hole 1012 in the first direction Z falls within the range of the first mounting hole 1013. At this time, the first mold 101 forms a first limiting step at the junction of the first demolding hole 1012 and the first mounting hole 1013. The shape of the first base 1022 corresponds to the cross section of the first mounting hole 1013, and the shape of the first push part 1021 corresponds to the cross section of the first demolding hole 1012. The first limiting step can abut against the first base 1022, thereby restricting the movement of the first demolding part 102.

[0049] Optionally, the first limiting step surrounds the first demolding hole 1012, making the force on the first base 1022 more uniform.

[0050] Continue to refer to Figure 3 The second mold 201 has a second mounting hole 2013 extending along the first direction Z, and the second mounting hole 2013 communicates with the second demolding hole 2012; the second demolding member 202 includes a second push part 2021 and a second base part 2022 connected to each other; the second push part 2021 is accommodated in the second mounting hole 2013 and connected to the second elastic member 203, the second push part 2021 at least partially passes through the second demolding hole 2012, and the second demolding hole 2012 limits the second base part 2022 to prevent the second base part 2022 from passing through the second demolding hole 2012.

[0051] Specifically, the projection of the second demolding hole 2012 in the first direction Z falls within the range of the second mounting hole 2013. At this time, the second mold 201 forms a second limiting step at the junction of the second demolding hole 2012 and the second mounting hole 2013. The shape of the second base 2022 corresponds to the cross section of the second mounting hole 2013, and the shape of the second push part 2021 corresponds to the cross section of the second demolding hole 2012. The second limiting step can abut against the second base 2022, thereby restricting the movement of the second demolding part 202.

[0052] Optionally, the second limiting step surrounds the second demolding hole 2012, making the force on the second base 2022 more uniform.

[0053] Optionally, the protective sheet forming apparatus further includes a first mold base 104 and a second mold base 204 disposed opposite to each other along the first direction Z. The first mold 101 is detachably disposed on the side of the first mold base 104 facing the second mold base 204, and the second mold 201 is detachably disposed on the side of the second mold base 204 facing the first mold base 104. This detachable installation method allows the protective sheet forming apparatus to flexibly replace the first mold 101 and the second mold 201, thereby producing protective sheets 9 of different shapes and sizes as needed.

[0054] Furthermore, the first mold base 104 covers the first demolding hole 1012 and is connected to the first elastic member 103; and / or the second mold base 204 covers the second mounting hole 2013 and is connected to the second elastic member 203. With this design, the first mold 101 and the first mold base 104 limit the first demolding member 102 and the first elastic member 103. Disassembling the first mold 101 simultaneously releases the limiting effect on the first demolding member 102 and the first elastic member 103. Similarly, the second mold 201 and the second mold base 204 limit the second demolding member 202 and the second elastic member 203. Disassembling the second mold 201 simultaneously releases the limiting effect on the second demolding member 202 and the second elastic member 203, making the assembly and disassembly of the protective sheet molding device more convenient.

[0055] To facilitate assembly, the protective sheet forming device may optionally include a second guide 205, which is disposed on the second mold base 204 and extends along the first direction Z. The second demolding member 202 has a second connecting hole 2023, and the second guide 205 passes through the second connecting hole 2023. The second demolding member 202 can slide relative to the second guide 205.

[0056] During assembly, the second guide member 205 can be first installed onto the second mold base 204, and then the second demolding member 202 can be inserted into the second guide member 205. Simultaneously, the second elastic member 203 is placed between the second demolding member 202 and the second mold base 204. At this point, the second guide member 205 limits the second demolding member 202, keeping it in its original position so that the assembler can align the second mold 201 with the second demolding member 202 and install it. After assembly, the second guide member 205 also serves as a guide, making the movement of the second demolding member 202 smoother.

[0057] Similarly, in an embodiment not shown, the protective sheet forming apparatus may further include a first guide member, which is disposed on the first mold base 104 and extends along a first direction Z. The first demolding member 102 has a first connecting hole, and the first guide member passes through the first connecting hole. The first demolding member 102 is slidable relative to the first guide member. The first guide member facilitates the assembly of the first mold 101 and the first demolding member 102, and also makes the movement of the first demolding member 102 smoother.

[0058] Furthermore, the protective sheet forming device may also include a third guide member 401, which is disposed on the second mold base 204 and extends in the first direction Z. The first mold base 104 has a third connecting hole, and the third guide member 401 passes through the third connecting hole. The first mold base 104 can slide relative to the third guide member 401, thereby making the movement of the first mold base 104 smoother.

[0059] Optionally, the molding block 2011 also has a positioning groove 2014 at the end facing the first mold 101. The positioning groove 2014 surrounds the second demolding hole 2012 and is used to position the protective sheet 9. The positioning groove 2014 can be used to position the protective sheet 9 more accurately, thereby improving the consistency of the protective sheet 9 after molding.

[0060] Optionally, the drive assembly includes a press, which includes a base 301 and a pressure head 302 opposite each other in the first direction Z. A first mold base 104 is disposed on the pressure head 302, and a second mold base 204 is connected to the base 301. The pressure head 302 can move closer to or further away from the base 301 in the first direction Z.

[0061] For example, refer to Figure 1 The press is a manual press, in which the operator can lower the press head 302 using an operating handle to press the protective plate 9. Alternatively, in other embodiments not shown, the press can be an electric press, in which the press head 302 is actuated by an electrically driven hydraulic cylinder, pneumatic cylinder, etc. This utility model does not limit this.

[0062] Reference Figure 5 This utility model provides another embodiment of the protective sheet forming device, which is similar to... Figure 1 The difference in the illustrated embodiment is that the first mold 101 is located above, while the second mold 201 is located below. In other words, the first mold 101 is the lower mold of the protective sheet forming device, while the second mold 201 is the upper mold of the protective sheet forming device.

[0063] At this time, the molding block 2011 protrudes from the side of the second mold 201 facing the first mold 101. The molding block 2011 is configured such that when the first mold 101 and the second mold 201 are close to each other, the molding block 2011 can extend into the molding frame 1011.

[0064] Apart from Figure 1 , Figure 2 , Figure 3 , Figure 5 Apart from the embodiment where the first direction Z is vertical, in other embodiments not shown, the first direction Z may also be other spatial directions, and the present invention does not limit this.

[0065] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A protector sheet forming apparatus characterized by comprising: Having a first direction (Z), the protective sheet (9) forming device includes: The first mold (101) has a forming frame (1011) at one end along the first direction (Z); The second mold (201) has a molding block (2011) at one end along the first direction (Z); A driving component is used to drive the first mold (101) and the second mold (201) to move closer or further apart in the first direction (Z); The first demolding component (102) is at least partially inserted into the molding frame (1011) and is slidable relative to the molding frame (1011) along the first direction (Z); The molding frame (1011), the first demolding member (102), and the molding block (2011) are arranged opposite to each other along the first direction (Z) and are configured such that when the first mold (101) and the second mold (201) are close to each other, the molding frame (1011), the first demolding member (102), and the molding block (2011) can jointly abut against the protective sheet (9) to bend and form it. It also includes a first elastic element (103) connected to the first demolding element (102), and the first elastic element (103) is configured to drive the first demolding element (102) to move along the molding frame (1011) toward the second mold (201) when the first mold (101) and the second mold (201) are far apart from each other, and to cause the protective piece (9) to detach from the molding frame (1011).

2. The protector sheet forming apparatus according to claim 1, wherein It also includes a second demolding member (202) and a second elastic member (203). The molding block (2011) is further provided with a second demolding hole (2012) extending along the first direction (Z). The second demolding hole (2012) is disposed opposite to the molding frame (1011) along the first direction (Z). The second demolding member (202) is at least partially inserted into the second demolding hole (2012). The second elastic member (203) is connected to the second demolding member (202), and the second elastic member (203) is configured to drive the second demolding member (202) to move along the second demolding hole (2012) toward the first mold (101). The molding frame (1011) is configured to extend into the second demolding hole (2012) when the first mold (101) and the second mold (201) are close to each other.

3. The protector sheet forming apparatus according to claim 2, wherein The first mold (101) is also provided with a first demolding hole (1012) extending along the first direction (Z), and the molding frame (1011) is arranged around the first demolding hole (1012); The first demolding member (102) is disposed in the first demolding hole (1012) and connected to the first elastic member (103).

4. The protector sheet forming apparatus according to claim 3, wherein The first mold (101) has a first mounting hole (1013) extending along the first direction (Z), and the first mounting hole (1013) communicates with the first demolding hole (1012); The first demolding member (102) includes a first push portion (1021) and a first base portion (1022) connected to each other. The first push portion (1021) is disposed at one end of the first base portion (1022) facing the second mold (201). The first base portion (1022) is received in the first mounting hole (1013) and connected to the first elastic member (103). The first push portion (1021) is at least partially inserted through the first demolding hole (1012). The first demolding hole (1012) limits the first base portion (1022) to prevent the first base portion (1022) from passing through the first demolding hole (1012).

5. The protector sheet forming apparatus according to claim 4, wherein The second mold (201) has a second mounting hole (2013) extending along the first direction (Z), and the second mounting hole (2013) communicates with the second demolding hole (2012); The second demolding member (202) includes a second push portion (2021) and a second base portion (2022) connected to each other; the second push portion (2021) is received in the second mounting hole (2013) and connected to the second elastic member (203), the second push portion (2021) is at least partially inserted through the second demolding hole (2012), and the second demolding hole (2012) limits the second base portion (2022) to prevent the second base portion (2022) from passing through the second demolding hole (2012).

6. The protector sheet forming apparatus according to claim 5, wherein It also includes a first mold base (104) and a second mold base (204) disposed opposite to each other along the first direction (Z), wherein the first mold (101) is detachably disposed on the side of the first mold base (104) facing the second mold base (204), and the second mold (201) is detachably disposed on the side of the second mold base (204) facing the first mold base (104); Wherein, the first mold base (104) covers the first demolding hole (1012) and is connected to the first elastic member (103); and / or the second mold base (204) covers the second mounting hole (2013) and is connected to the second elastic member (203).

7. The protector sheet forming apparatus according to claim 6, wherein It also includes a first guide member, which is disposed on the first mold base (104) and extends along the first direction (Z). The first demolding member (102) has a first connecting hole, and the first guide member passes through the first connecting hole. The first demolding member (102) can slide relative to the first guide member. And / or may also include a second guide (205) disposed on the second mold base (204) and extending along the first direction (Z), the second demolding member (202) having a second connecting hole (2023) and the second guide (205) passing through the second connecting hole (2023), the second demolding member (202) being slidable relative to the second guide (205).

8. The protector sheet forming apparatus according to claim 2, wherein The molding block (2011) also has a positioning groove (2014) at one end facing the first mold (101). The positioning groove (2014) is arranged around the second demolding hole (2012). The positioning groove (1013) is used to position the protective piece (9).

9. The protector sheet forming apparatus according to claim 3, wherein The drive assembly includes a press, which includes a base (301) and a pressure head (302) opposite each other in the first direction (Z), a first mold base (104) is disposed on the pressure head (302), a second mold base (204) is connected to the base (301), and the pressure head (302) is movable toward or away from the base (301) along the first direction (Z).

10. The protector sheet forming apparatus according to claim 1, wherein The molding block (2011) protrudes from the side of the second mold (201) facing the first mold (101), and the molding block (2011) is configured such that when the first mold (101) and the second mold (201) are close to each other, the molding block (2011) can extend into the molding frame (1011).

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