Anti-separation type silicon steel sheet injection mold

Abstract

The utility model discloses an anti-separation type silicon steel sheet injection mold which comprises a base, a first injection molding module, a second injection molding module and a lower cover plate, the first injection molding module is fixed to the base, a modeling hole is formed in the first injection molding module in the height direction, the modeling hole penetrates through the upper end of the first injection molding module, a guide column is arranged in the modeling hole, and a part of the outer contour of the guide column makes contact with silicon steel sheets and waste. A first injection molding hole is formed between the other part of the outer contour of the guide column and the silicon steel sheet, the side, facing the first injection molding module, of the second injection molding module is a plane, the lower cover plate is connected with the first injection molding module, the guide column is arranged on the lower cover plate, and the side, facing the first injection molding module, of the lower cover plate is a plane. The injection mold has the advantages that the fluency when silicon steel sheets and waste materials are put into the injection mold is improved, and the silicon steel sheets are tightly attached.

Description

Technical Field

[0001] The utility model belongs to the technical field of iron core injection molding, and in particular relates to an anti-separation type silicon steel sheet injection molding mold. Background Art

[0002] The electronic iron core is composed of multiple silicon steel sheets. In order to improve the performance of the iron core and reduce the iron loss, during the stamping process of the silicon steel sheets, the waste materials around the silicon steel sheets are connected to the silicon steel sheets, buckle points are stamped on the scrap materials, and the buckle points on the scrap materials are used to realize overlapping riveting, and multiple silicon steel sheets are preliminarily connected. Then, multiple silicon steel sheets are connected and fixed by injection molding. In order to facilitate the subsequent splitting of the scrap materials, the silicon steel sheets and the scrap materials need to be half-cut to make them half-connected. However, when the silicon steel sheets and the scrap materials are placed in the injection mold, Due to the complex shape between the silicon steel sheet and the waste, in order to ensure the yield during injection molding, it is necessary to reduce the gap between the injection mold and the silicon steel sheet and the waste to achieve the positioning of the silicon steel sheet and the waste. However, due to the small gap between the injection mold and the silicon steel sheet and the waste, a jam will occur when the injection mold is loaded, and the semi-connected silicon steel sheet and the waste will be separated due to the jam, which will cause a gap between the silicon steel sheets. In order to solve such problems, an anti-separation silicon steel sheet injection mold is proposed. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0004] To this end, the utility model proposes an anti-separation type silicon steel sheet injection mold, which has the advantages of increasing the smoothness when silicon steel sheets and waste materials are placed into the injection mold, and ensuring that the silicon steel sheets fit tightly together.

[0005] According to the anti-separation silicon steel sheet injection mold of the embodiment of the utility model, it includes: a base, a first injection molding module, a second injection molding module, and a lower cover plate; the first injection molding module is fixed on the base, the first injection molding module is formed with a molding hole along the height direction, the molding hole runs through the upper end of the first injection molding module, the molding hole is used to place the silicon steel sheet and the waste, a guide column is arranged in the molding hole, a part of the outer contour of the guide column is in contact with the silicon steel sheet and the waste material, so as to limit and guide the silicon steel sheet and the waste material, and a first injection molding hole is formed between the other part of the outer contour of the guide column and the silicon steel sheet, the side of the second injection molding module facing the first injection molding module is a plane, when the silicon steel sheet and the waste material are placed, the second injection molding module is used to push the silicon steel sheet and the waste material into the molding hole synchronously, the lower cover plate is connected to the first injection molding module, the guide column is arranged on the lower cover plate, the side of the lower cover plate facing the first injection molding module is a plane, after the silicon steel sheet and the waste material are placed, the lower cover plate and the second injection molding module clamp the silicon steel sheet and the waste material in the molding hole.

[0006] According to one embodiment of the utility model, one end of the guide column is inserted into the lower cover plate, a through hole is formed on the side wall of one end of the guide column, a pin is inserted into the through hole, and the pin is used to fix the guide column to prevent the guide column from detaching from the lower cover plate.

[0007] According to one embodiment of the utility model, the second injection molding module includes: an upper cover plate and a top plate; the upper cover plate faces the first injection molding module, a second injection molding hole is formed on the upper cover plate, the second injection molding hole is connected to the first injection molding hole, a flow guide is formed on the top plate, the flow guide is connected to the second injection molding hole, a connecting column is also formed on the top plate, one end of the connecting column is inserted into the second injection molding hole, the diameter of the connecting column is smaller than the diameter of the second injection molding hole, and the top plate and the upper cover plate are slidably connected by a first guide column.

[0008] According to an embodiment of the present invention, one end of the second injection hole close to the silicon steel sheet is in a conical structure.

[0009] According to one embodiment of the utility model, a lifting unit is provided on the base, and the lifting unit includes: a plurality of top columns and a bottom plate; one ends of the plurality of top columns all penetrate the lower cover plate, the plurality of top columns are evenly distributed in the area where the silicon steel sheets and waste are located, the plurality of top columns are fixed on the bottom plate, the bottom plate is connected to a driving part, the driving part is used for the bottom plate to drive the bottom plate to perform linear reciprocating motion, and the bottom plate is used to drive the top columns to push the silicon steel sheets and waste.

[0010] According to one embodiment of the utility model, the base plate includes: a mounting plate and a fixing plate; a first countersunk hole is formed on the mounting plate, and a cap head is formed on the other end of the top column. After one end of the top column is inserted from the first countersunk hole, one end of the top column passes through the mounting plate, and the cap head is embedded in the first countersunk hole. The fixing plate is bolted to the mounting plate, and the cap head is located between the fixing plate and the mounting plate. The fixing plate is used to cooperate with the mounting plate to fix the top column.

[0011] According to one embodiment of the utility model, a second guide column is further provided on the mounting plate, and a spring is sleeved on the second guide column. One end of the spring abuts against the lower cover plate, and the other end of the spring abuts against the mounting plate, so that the mounting plate can be reset in time after pushing out the silicon steel sheet and waste.

[0012] According to an embodiment of the present invention, the number of the guide pillars is twice that of the silicon steel sheet, so as to form first injection holes on both sides of the silicon steel sheet respectively.

[0013] According to one embodiment of the utility model, a first injection groove is formed on the side of the lower cover plate facing the first injection molding module. The number of the first injection grooves is the same as the number of silicon steel sheets and corresponds to the positions of the silicon steel sheets. The first injection grooves are connected to the first injection holes on both sides of the corresponding silicon steel sheets.

[0014] According to one embodiment of the utility model, a second injection groove is formed on the side of the upper cover plate facing the first injection molding module, the number of the second injection grooves is the same as the number of silicon steel sheets and corresponds to the positions of the silicon steel sheets, the second injection grooves are connected with the first injection holes on both sides of the corresponding silicon steel sheets, and the second injection holes are connected to the second injection grooves.

[0015] The beneficial effect of the utility model is that the utility model adopts the arrangement of guide columns in the shaping hole, so that the guide columns can position and guide the silicon steel sheet and the waste material, thereby reducing the accuracy of the fit between the inner surface of the shaping hole and the silicon steel sheet and the waste material, thereby appropriately increasing the gap between the inner surface of the shaping hole and the silicon steel sheet and the waste material, thereby improving the smoothness of the silicon steel sheet and the waste material when being lowered, and avoiding the phenomenon of separation of the silicon steel sheet and the waste material due to jamming;

[0016] The second injection molding module is used to push down the silicon steel sheet and the waste material, so that the silicon steel sheet and the waste material are subjected to force synchronously and evenly, further avoiding the separation of the silicon steel sheet and the waste material.

[0017] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by implementing the present invention.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments of the present invention, in which:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is an exploded schematic diagram of the overall structure of the utility model;

[0022] Figure 3 It is an enlarged schematic diagram of area A of the utility model;

[0023] Figure 4 It is an enlarged schematic diagram of area B of the utility model;

[0024] Figure 5 It is an enlarged schematic diagram of the C area of ​​the utility model;

[0025] Figure 6 It is a schematic diagram of the top plate structure of the utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the lower cover plate of the utility model;

[0027] Figure 8 It is a top view schematic diagram of the first injection molding module and the guide column of the utility model;

[0028] Fig. 9 It is a top view schematic diagram of placing silicon steel sheets and waste materials in the molding hole of the utility model;

[0029] Fig.10 This is a schematic diagram of the bottom structure of the upper cover plate of the utility model;

[0030] Fig.11 This is a schematic diagram of the bottom structure of the mounting plate of the utility model;

[0031] Reference numerals:

[0032] 1. Base; 21. First injection molding module; 211. Modeling hole; 212. Guide column; 213. First injection molding hole; 221. Upper cover plate; 2211. Second injection molding hole; 2212. Second injection molding groove; 222. Top plate; 2221. Flow guide channel; 2222. Connecting column; 223. First guide column; 23. Lower cover plate; 231. First injection molding groove; 232. Pin; 31. Top column; 321. Mounting plate; 322. Fixing plate; 41. Second guide column; 42. Spring. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The anti-separation silicon steel sheet injection mold of the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0037] like Figure 1-Figure 11 As shown, according to the embodiment of the utility model, the anti-separation silicon steel sheet injection mold includes: a base 1, a first injection molding module 21, a second injection molding module, and a lower cover plate 23; the first injection molding module 21 is fixed on the base 1, and the first injection molding module 21 is formed with a molding hole 211 along the height direction, and the molding hole 211 runs through the upper end of the first injection molding module 21, and the molding hole 211 is used to place the silicon steel sheet and the waste. A guide column 212 is provided in the molding hole 211, and a part of the outer contour of the guide column 212 is in contact with the silicon steel sheet and the waste, so as to limit and guide the silicon steel sheet and the waste. A first injection hole 213 is formed between the other part of the outer contour of the guide column 212 and the silicon steel sheet. The side of the second injection module facing the first injection module 21 is a plane. When placing the silicon steel sheet and the waste, the second injection module is used to push the silicon steel sheet and the waste into the molding hole 211 simultaneously. The lower cover plate 23 is connected to the first injection molding module 21. The guide column 212 is arranged on the lower cover plate 23. The side of the lower cover plate 23 facing the first injection molding module 21 is a plane. After placing the silicon steel sheet and the waste, the lower cover plate 23 and the second injection molding module clamp the silicon steel sheet and the waste in the molding hole 211.

[0038] In this embodiment, a plurality of scraps are first connected by a stacking riveting process, so that the silicon steel sheets connected by the plurality of scraps fit together. When the silicon steel sheets and the scraps are placed together in the molding hole 211, the silicon steel sheets and the scraps are pushed down by the second injection molding module, so that the silicon steel sheets and the scraps are synchronously and evenly stressed, thereby avoiding the separation of the silicon steel sheets and the scraps. In addition, a guide column 212 is provided in the molding hole 211, so that the guide column 212 positions and guides the silicon steel sheets and the scraps, thereby reducing the accuracy of the fit between the inner surface of the molding hole 211 and the silicon steel sheets and the scraps, thereby appropriately increasing the gap between the inner surface of the molding hole 211 and the silicon steel sheets and the scraps, thereby improving the smoothness of the silicon steel sheets and the scraps when they are lowered. , avoiding the separation of silicon steel sheets and waste due to jamming. After the multiple silicon steel sheets and waste are completely placed in the molding hole 211, the silicon steel sheets and waste are supported by the lower cover plate 23. Combined with the downward pressure of the second injection molding module on the silicon steel sheets and waste, the multiple silicon steel sheets and waste are further flattened and pressed, so that the multiple silicon steel sheets fit closely. At the same time, the lower cover plate 23 and the second injection molding module are used to clamp the silicon steel sheets and waste, avoiding the injection liquid squeezing the silicon steel sheets and waste during the injection molding process due to the large gap between the inner surface of the molding hole 211 and the silicon steel sheets and waste, causing the silicon steel sheets and waste to separate and cause defects in the injection molded parts, thereby ensuring the injection molding yield.

[0039] One end of the guide post 212 is inserted into the lower cover plate 23 . A through hole is formed on the side wall of one end of the guide post 212 . A pin 232 is inserted into the through hole. The pin 232 is used to fix the guide post 212 to prevent the guide post 212 from detaching from the lower cover plate 23 .

[0040] The number of the guide pillars 212 is twice that of the silicon steel sheet, so as to form first injection holes 213 on both sides of the silicon steel sheet respectively.

[0041] In this embodiment, since the shape of the gap between the silicon steel sheet and the waste is relatively complex, in order to ensure the fit between the outer contour of a part of the guide column 212 and the silicon steel sheet and the waste, and the accuracy of the gap size between the outer contour of another part of the guide column 212 and the silicon steel sheet, the dimensional accuracy of the outer contour of the guide column 212 is relatively high, and when manufacturing a smaller iron core, the size of the molding hole 211 is relatively small, and if a plurality of guide columns 212 are directly arranged in the molding hole 211, the manufacturing difficulty is relatively large. Therefore, the guide columns 212 are manufactured separately and then assembled in the molding hole 211, which reduces the manufacturing difficulty and speeds up the production. In addition, the guide column 212 and the lower cover plate 23 are set as separate bodies in order to reduce the material size and save material cost. Multiple guide columns 212 are inserted into the lower cover plate 23, and the lower cover plate 23 limits the guide columns 212 in the front, back, left and right directions. A pin shaft 232 connects multiple guide columns 212, that is, the guide columns 212 in the same row are fixed by a pin shaft 232, and the pin shaft 232 limits the guide columns 212 in the upper and lower directions, thereby realizing the fixation of the guide columns 212, and fixing the guide columns 212 by plugging and the pin shaft 232, realizing simple assembly steps and accelerating the assembly speed.

[0042] The second injection molding module includes: an upper cover plate 221 and a top plate 222; the upper cover plate 221 faces the first injection molding module 21, and a second injection hole 2211 is formed on the upper cover plate 221, and the second injection hole 2211 is connected to the first injection hole 213, and a guide channel 2221 is formed on the top plate 222, and the guide channel 2221 is connected to the second injection hole 2211, and a connecting column 2222 is also formed on the top plate 222, and one end of the connecting column 2222 is inserted into the second injection hole 2211, and the diameter of the connecting column 2222 is smaller than the diameter of the second injection hole 2211, and the top plate 222 and the upper cover plate 221 are slidably connected by a first guide column 223.

[0043] In this embodiment, the injection molding liquid enters the second injection molding hole 2211 through the flow guide 2221, and flows to the first injection molding hole 213 through the second injection molding hole 2211. After the first injection molding hole 213 is filled with the injection molding liquid, the excess injection molding liquid accumulates in the second injection molding hole 2211. At this time, the injection molding liquid in the second injection molding hole 2211 is wrapped on the connecting column 2222, and is connected to the connecting column 2222 after the injection molding liquid is molded. At this time, the second injection molding module is moved up to separate the injection molding part in the second injection molding hole 2211 from the injection molding part in the first injection molding hole 213 of the silicon steel sheet. At this time, the silicon steel sheet after injection molding can be taken out and the next process is carried out. Then the upper cover plate 221 and the top plate 222 are separated, so that the connecting column 2222 drives the injection molding part in the second injection molding hole 2211 to leave the second injection molding hole 2211, so as to facilitate the removal of the injection molding part to continue the injection molding operation.

[0044] Furthermore, a truncated cone-shaped connecting block is formed at the bottom of the connecting column 2222, and the bottom diameter of the connecting block is larger than the top diameter. During the injection molding process, the injection molded part formed in the second injection hole 2211 is wrapped around the outer surface of the connecting block. The truncated cone-shaped connecting block increases the connection firmness between the injection molded part in the second injection hole 2211 and the connecting block, thereby preventing the injection molded part in the second injection hole 2211 from separating from the connecting column 2222 when the second injection molding module is moved upward, thereby blocking the second injection hole 2211.

[0045] The second injection hole 2211 has a conical structure at one end close to the silicon steel sheet.

[0046] In this embodiment, the tapered structure can make the connection end between the injection molded part in the first injection hole 213 and the injection molded part in the second injection hole 2211 smaller, avoiding the injection molded part in the second injection hole 2211 from breaking in the middle during separation, thereby ensuring the success rate of separation.

[0047] A lifting unit is provided on the base 1, and the lifting unit includes: a plurality of top columns 31 and a bottom plate; one end of the plurality of top columns 31 passes through the lower cover plate 23, and the plurality of top columns 31 are evenly distributed in the area where the silicon steel sheets and the waste are located, and the plurality of top columns 31 are fixed on the bottom plate, and the bottom plate is connected to a driving part, and the driving part is used for the bottom plate to drive the bottom plate to make a linear reciprocating motion, and the bottom plate is used to drive the top columns 31 to push the silicon steel sheets and the waste.

[0048] In this embodiment, after the injection molding is completed, a lifting unit is used to eject the silicon steel sheet and the waste material to facilitate the removal of the silicon steel sheet after injection molding. Multiple ejector pins 31 are evenly distributed at the corresponding positions of the silicon steel sheet and the waste material to prevent the silicon steel sheet and the waste material from being separated due to uneven force, resulting in partial residue in the molding hole 211, thereby achieving the effect of synchronously ejecting the silicon steel sheet and the waste material and improving the production speed.

[0049] The bottom plate includes: a mounting plate 321 and a fixing plate 322; a first countersunk hole is opened on the mounting plate 321, and a cap head is formed at the other end of the top column 31. After one end of the top column 31 is inserted from the first countersunk hole, one end of the top column 31 passes through the mounting plate 321, and the cap head is embedded in the first countersunk hole. The fixing plate 322 is bolted to the mounting plate 321, and the cap head is located between the fixing plate 322 and the mounting plate 321. The fixing plate 322 is used to cooperate with the mounting plate 321 to fix the top column 31.

[0050] In this embodiment, the number of first countersunk holes and top columns 31 is the same. Multiple top columns 31 are respectively inserted into the first countersunk holes so that one end of the top column 31 protrudes from the mounting plate 321, and the cap head at the other end of the top column 31 is embedded in the first countersunk hole. Then the fixing plate 322 is installed on the mounting plate 321. At this time, the fixing plate 322 is in contact with the cap head, and the fixing plate 322 and the mounting plate 321 clamp the cap head to fix the top column 31. In this process, the installation steps are simplified and the installation speed is improved. After the top column 31 is installed, one end of the top column 31 is inserted into the lower cover plate 23, and the lower cover plate 23 guides the top column 31.

[0051] The mounting plate 321 is also provided with a second guide column 41, on which a spring 42 is sleeved, one end of the spring 42 abuts against the lower cover plate 23, and the other end of the spring 42 abuts against the mounting plate 321, so that the mounting plate 321 can be reset in time after pushing out the silicon steel sheet and waste, to avoid improper reset of the mounting plate 321 causing one end of the top column 31 to block the injection molding space and cause injection molding defects.

[0052] In this embodiment, there are multiple second guide pillars 41, and multiple second guide pillars 41 are arranged at intervals below the lower cover plate 23. Second countersunk holes with the same number as the second guide pillars 41 are formed on the mounting plate 321, and a protrusion is formed at one end of the second guide pillar 41. After inserting the top pillar 31, the second guide pillar 41 is inserted in the same way, so that the protrusion is embedded in the second countersunk hole. After installing the fixing plate 322, the second guide pillar 41 is fixed. The multiple second guide pillars 41 are fixed by using the fixing plate 322 and the mounting plate 321, which further saves installation time. The spring 42 is sleeved on the second guide pillar 41, so that the second guide pillar 41 guides the spring 42. After one end of the top pillar 31 is inserted into the lower cover plate 23, the other end of the second guide pillar 41 is against the lower cover plate 23.

[0053] The lower cover 23 has a first injection groove 231 formed on one side facing the first injection module 21. The number of the first injection grooves 231 is the same as the number of silicon steel sheets and corresponds to the positions of the silicon steel sheets. The first injection grooves 231 are connected to the first injection holes 213 on both sides of the corresponding silicon steel sheets.

[0054] A second injection groove 2212 is formed on one side of the upper cover plate 221 facing the first injection molding module 21. The number of the second injection grooves 2212 is the same as the number of silicon steel sheets and corresponds to the positions of the silicon steel sheets. The second injection grooves 2212 are connected to the first injection holes 213 on both sides of the corresponding silicon steel sheets, and the second injection holes 2211 are connected to the second injection grooves 2212.

[0055] In this embodiment, a connecting wall is formed on two side walls of the silicon steel sheet through the first injection hole 213, a lower connecting plate is formed on the bottom of the plurality of silicon steel sheets through the first injection groove 231, and an upper connecting plate is formed on the top of the plurality of silicon steel sheets through the second injection groove 2212. The lower connecting plate, the upper connecting plate and the two connecting walls are connected to form a frame, and the plurality of silicon steel sheets are fixed in the frame, thereby increasing the fixing strength of the plurality of silicon steel sheets. Winding is performed on the frame, and the frame can insulate the plurality of silicon steel sheets and the winding.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An anti-separation silicon steel sheet injection mold, characterized in that: include: Base (1); A first injection molding module (21), the first injection molding module (21) being fixed on the base (1), the first injection molding module (21) being formed with a molding hole (211) along a height direction, the molding hole (211) penetrating the upper end of the first injection molding module (21), the molding hole (211) being used to place silicon steel sheets and waste materials, a guide column (212) being provided in the molding hole (211), a portion of the outer contour of the guide column (212) being in contact with the silicon steel sheets and the waste materials so as to limit and guide the silicon steel sheets and the waste materials, and a first injection molding hole (213) being formed between another portion of the outer contour of the guide column (212) and the silicon steel sheets; a second injection molding module, wherein the side of the second injection molding module facing the first injection molding module (21) is a plane, and when placing the silicon steel sheet and the waste material, the second injection molding module is used to synchronously push the silicon steel sheet and the waste material into the molding hole (211); A lower cover plate (23), the lower cover plate (23) is connected to the first injection molding module (21), the guide column (212) is arranged on the lower cover plate (23), the side of the lower cover plate (23) facing the first injection molding module (21) is a plane, and after the silicon steel sheet and the waste are placed, the lower cover plate (23) and the second injection molding module clamp the silicon steel sheet and the waste in the molding hole (211).

2. The anti-separation silicon steel sheet injection mold according to claim 1, characterized in that: One end of the guide column (212) is inserted into the lower cover plate (23); a through hole is formed on the side wall of one end of the guide column (212); a pin shaft (232) is inserted into the through hole; the pin shaft (232) is used to fix the guide column (212) to prevent the guide column (212) from being separated from the lower cover plate (23).

3. The anti-separation silicon steel sheet injection mold according to claim 2, characterized in that: The second injection molding module comprises: An upper cover plate (221), the upper cover plate (221) facing the first injection molding module (21), a second injection molding hole (2211) being formed on the upper cover plate (221), the second injection molding hole (2211) being connected to the first injection molding hole (213); A top plate (222), wherein a flow guide (2221) is formed on the top plate (222), wherein the flow guide (2221) is connected to the second injection hole (2211), and a connecting column (2222) is also formed on the top plate (222), wherein one end of the connecting column (2222) is inserted into the second injection hole (2211), and the diameter of the connecting column (2222) is smaller than the diameter of the second injection hole (2211), and the top plate (222) and the upper cover plate (221) are slidably connected by a first guide column (223).

4. The anti-separation silicon steel sheet injection mold according to claim 3, characterized in that: The second injection hole (2211) has a conical structure at one end close to the silicon steel sheet.

5. The anti-separation silicon steel sheet injection mold according to claim 4, characterized in that: The base (1) is provided with a lifting unit, and the lifting unit comprises: A plurality of top columns (31), one end of each of the top columns (31) passes through the lower cover plate (23), and the top columns (31) are evenly distributed in the area where the silicon steel sheets and the waste are located; A bottom plate, a plurality of top columns (31) are fixed on the bottom plate, the bottom plate is connected to a driving unit, the driving unit is used for the bottom plate to drive the bottom plate to perform linear reciprocating motion, and the bottom plate is used to drive the top columns (31) to push the silicon steel sheets and waste.

6. The anti-separation silicon steel sheet injection mold according to claim 5, characterized in that: The bottom plate comprises: A mounting plate (321), wherein a first countersunk hole is formed on the mounting plate (321), and a cap is formed at the other end of the top column (31). After one end of the top column (31) is inserted from the first countersunk hole, one end of the top column (31) passes through the mounting plate (321), and the cap is embedded in the first countersunk hole; A fixing plate (322), wherein the fixing plate (322) is bolted to the mounting plate (321), the cap head is located between the fixing plate (322) and the mounting plate (321), and the fixing plate (322) is used to cooperate with the mounting plate (321) to fix the top column (31).

7. The anti-separation silicon steel sheet injection mold according to claim 6, characterized in that: The mounting plate (321) is also provided with a second guide column (41), and a spring (42) is sleeved on the second guide column (41). One end of the spring (42) abuts against the lower cover plate (23), and the other end of the spring (42) abuts against the mounting plate (321), so that the mounting plate (321) can be reset in time after pushing out the silicon steel sheet and waste.

8. The anti-separation silicon steel sheet injection mold according to claim 7, characterized in that: The number of the guide pillars (212) is twice that of the silicon steel sheet, so as to form first injection holes (213) on both sides of the silicon steel sheet respectively.

9. The anti-separation silicon steel sheet injection mold according to claim 8, characterized in that: A first injection molding groove (231) is formed on one side of the lower cover plate (23) facing the first injection molding module (21); the number of the first injection molding grooves (231) is the same as the number of silicon steel sheets and corresponds to the positions of the silicon steel sheets; the first injection molding grooves (231) are connected to the first injection molding holes (213) on both sides of the corresponding silicon steel sheets.

10. The anti-separation silicon steel sheet injection mold according to claim 9, characterized in that: A second injection molding groove (2212) is formed on a side of the upper cover plate (221) facing the first injection molding module (21); the number of the second injection molding grooves (2212) is the same as the number of silicon steel sheets and corresponds to the positions of the silicon steel sheets; the second injection molding grooves (2212) are connected to the first injection molding holes (213) on both sides of the corresponding silicon steel sheets; and the second injection molding holes (2211) are connected to the second injection molding grooves (2212).

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