Injection mold and injection molding equipment

Abstract

The utility model relates to the technical field of battery production equipment manufacturing, in particular to an injection mold and injection molding device.The injection mold is used for flower basket injection molding and comprises a first mold; the second mold is detachably connected with the first mold, a first injection molding cavity is formed in the second mold, the first injection molding cavity is used for injection molding of flower basket teeth, a second injection molding cavity is formed between the second mold and the first mold, the second injection molding cavity is used for injection molding of flower basket rods, the first injection molding cavity communicates with the second injection molding cavity, and the second mold comprises a first surface; the first surface is located on the side, away from the first mold, of the second mold, and an injection molding channel is formed in the first surface and penetrates to the first injection molding cavity from the first surface. According to the injection mold provided by the embodiment of the invention, the tensile stress generated by melt cooling speed difference in the injection molding process can be improved by changing the position of the injection molding channel.

Description

Technical Field

[0001] This application relates to the field of battery production equipment manufacturing technology, and in particular to an injection mold and injection molding equipment. Background Technology

[0002] In the photovoltaic cell manufacturing process, the wet-process basket is a crucial piece of equipment used to support silicon wafers. The wet-process basket effectively holds the wafers and uses the toothed structure on the basket's handles to physically isolate adjacent wafers, preventing wafers from attaching together during the wet processing.

[0003] In existing basket weir injection molding processes, the injection channel is located at the basket stem position. This design makes it difficult to release stress at the basket stem. The molten material near the injection channel cools relatively slowly, while the part farther away cools rapidly. This difference in cooling rate causes uneven shrinkage within the basket stem, resulting in tensile stress on the already solidified portion. Since the injection channel is the stress initiation point, stress is relatively concentrated, leading to lower strength at the connection between the basket stem and the injection channel. Utility Model Content

[0004] This application discloses an injection mold and injection equipment that can improve the strength of the basket stem by transferring the injection channel to the basket teeth, thus preventing the basket stem from breaking during basket transportation.

[0005] To achieve the above objectives, this application discloses an injection mold and injection molding equipment for injection molding flower baskets, comprising:

[0006] First mold;

[0007] A second mold is detachably connected to the first mold. A first injection cavity is formed inside the second mold for injection molding basket teeth. A second injection cavity is formed between the second mold and the first mold for injection molding basket rods. The first injection cavity and the second injection cavity are in communication. The second mold includes a first surface located on the side of the second mold away from the first mold. An injection channel is provided on the first surface, and the injection channel extends from the first surface to the first injection cavity.

[0008] As an optional implementation, there are multiple first injection cavities and multiple injection channels. The multiple first injection cavities are arranged at intervals along the extension direction of the second injection cavity, and the multiple injection channels are connected to the multiple first injection cavities one by one.

[0009] As an alternative implementation, the axes of the plurality of injection channels are parallel to each other.

[0010] As an optional implementation, along the direction from the first mold to the second mold, the cross-sectional area of ​​the first injection cavity gradually decreases along the extension direction of the second injection cavity.

[0011] As an optional implementation, the first injection cavity is a frustum-shaped cavity, the axis of which is perpendicular to the extension direction of the second injection cavity, and the larger end of the frustum-shaped cavity is connected to the second injection cavity.

[0012] As an optional implementation, the injection channel includes an inlet and an outlet. The inlet is disposed on the first surface, and the outlet is connected to the first injection cavity. The area of ​​the outlet is smaller than the area of ​​the smaller end of the frustoconical cavity.

[0013] As an optional implementation, the injection channel is provided with a separator that divides at least a portion of the injection channel into a plurality of sub-injection channels extending in a direction from the first mold to the second mold, and the plurality of sub-injection channels are arranged circumferentially along the injection channel.

[0014] As an optional implementation, the number of the separators is two, and the two separators are arranged perpendicular to each other, so that at least a portion of the injection channel is divided into four sub-injection channels arranged circumferentially along the injection channel.

[0015] As an optional implementation, the injection channel includes a first segment and a second segment that are interconnected. The end of the first segment away from the second segment extends through the first surface, and the end of the second segment away from the first segment is connected to the first injection cavity. In the direction from the second mold to the first mold, the cross-sectional area of ​​the second segment gradually decreases along the extension direction of the second injection cavity.

[0016] A second aspect of this application provides an injection molding apparatus, including the injection mold described above.

[0017] Compared with the prior art, the beneficial effects of this application are:

[0018] This embodiment of the application transfers the injection channel from the basket rod to the basket teeth, that is, connects the injection channel to the first injection cavity and then to the second injection cavity. This avoids the defect of the injection channel being located at the basket rod position in traditional basket injection molding, making the cooling rate of the basket rod more uniform, reducing stress concentration in the basket rod, improving the strength of the basket rod, and preventing the basket rod from breaking during the clamping and movement of the basket. This avoids the situation where residual liquid at the broken basket rod causes defective battery cells, improves the production efficiency of battery cells, and ensures the production yield of battery cells. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a flower basket provided in an embodiment of this application;

[0021] Figure 2 This is one of the structural schematic diagrams of the injection mold provided in the embodiments of this application;

[0022] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 This is the second schematic diagram of the structure of the injection mold provided in the embodiments of this application;

[0024] Figure 5 for Figure 2 A magnified view of a section at point B in the middle;

[0025] Figure 6 This is a schematic diagram of the injection channel provided in an embodiment of this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100 - Injection mold; 200 - Flower basket; 201 - Flower basket rod; 202 - Flower basket teeth; 1 - First mold; 2 - Second mold; 21 - First injection cavity; 22 - Second injection cavity; 2a - First surface; 23 - Injection channel; 23a - Inlet; 23b - Outlet; 231 - Separator; 232 - Sub-injection channel; 233 - First section; 234 - Second section. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In this application, the terms "upper," "lower," "top," "bottom," "inner," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0030] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0031] Furthermore, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0032] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0033] In the photovoltaic cell manufacturing process, the wet-process basket is a crucial piece of equipment used to support silicon wafers. The wet-process basket effectively holds the wafers and uses the toothed structure on the basket's handles to physically isolate adjacent wafers, preventing wafers from attaching together during the wet processing.

[0034] However, in existing basket weir injection molding processes, the injection channel is located at the basket stem position. This design makes it difficult to release stress at the basket stem. During injection molding, the molten material near the injection channel cools relatively slowly, while the part farther away cools rapidly. This difference in cooling rate causes uneven shrinkage inside the basket stem, which in turn generates tensile stress on the already solidified portion. Since the injection channel is the stress initiation point, the stress is relatively concentrated, resulting in lower strength at the connection between the basket stem and the injection channel.

[0035] In actual production, during the clamping and handling of wet-process baskets, the basket handles serve as the primary stress point; insufficient strength in these handles accelerates breakage. Damaged wet-process baskets, when carrying silicon wafers for processing, require acid / alkali etching of the wafer surface, followed by rinsing with pure water to remove adhering acids and alkalis, and finally drying in a drying tank. During this process, residual chemicals can easily remain in the cracks of the damaged basket, leading to excessive corrosion and contamination of the wafers, resulting in poor basket markings and affecting wafer yield.

[0036] Based on this, this application discloses an injection mold and injection equipment. By transferring the injection channel to the basket teeth, uneven shrinkage caused by different cooling rates of the molten material at the basket rod is prevented, thereby improving the strength of the basket rod and preventing damage to the basket rod during basket handling.

[0037] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0038] Please see Figures 1 to 4 , Figure 1 This is a schematic diagram of the structure of a portion of the flower basket 200 provided in an embodiment of this application. Figure 2 This is one of the structural schematic diagrams of the injection mold 100 provided in the embodiments of this application; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a second schematic diagram of the structure of the injection mold 100 provided in this application embodiment. This application embodiment discloses an injection mold 100 and injection molding equipment for injection molding a flower basket 200, including: a first mold 1; a second mold 2, the second mold 2 being detachably connected to the first mold 1, a first injection cavity 21 being formed in the second mold 2 for injection molding the flower basket teeth 202, a second injection cavity 22 being formed between the second mold 2 and the first mold 1 for injection molding the flower basket stem 201, the first injection cavity 21 and the second injection cavity 22 being connected, the second mold 2 including a first surface 2a, the first surface 2a being located on the side of the second mold 2 away from the first mold 1, an injection channel 23 being provided on the first surface 2a, the injection channel 23 extending from the first surface 2a to the first injection cavity 21.

[0039] Specifically, the injection mold 100 includes a first mold 1 and a second mold 2. The second mold 2 has a first injection cavity 21 formed therein for injection molding the basket teeth 202. Optionally, there can be multiple first injection cavities 21, which are spaced apart along the extending direction of the second injection cavity 22. This results in the injection-molded basket 200 including multiple basket teeth 202, capable of supporting multiple silicon wafers, thus improving the efficiency of silicon wafer processing and production.

[0040] The second mold 2 is detachably connected to the first mold 1, and a second injection cavity 22 is formed between the second mold 2 and the first mold 1 for injection molding the basket rod 201. It can be understood that the first mold 1 includes an injection groove, and the second mold 2 also includes an injection groove. When the first mold 1 and the second mold 2 are connected together, the two injection grooves are aligned and set together, thereby forming the second injection cavity 22.

[0041] It is understandable that a positioning component can be provided between the first mold 1 and the second mold 2 to ensure accurate alignment between the first mold 1 and the second mold 2, and to prevent the basket rod 201 from deviating in injection molding shape due to the first mold 1 and the second mold 2 not being aligned according to the preset position.

[0042] Optionally, the positioning component can be a first mold 1 with a positioning protrusion and a second mold 2 with a positioning recess. The positioning protrusion and the positioning recess, through their limiting cooperation, ensure that the first mold 1 and the second mold 2 are aligned according to a preset position. The positioning component can also be a magnetic component, using magnetic attraction to ensure precise alignment of the first mold 1 and the second mold 2. The positioning component can also be any other structure capable of ensuring that the first mold 1 and the second mold 2 are aligned according to a preset position; this embodiment does not limit the specific type of structure.

[0043] Furthermore, the first injection cavity 21 is connected to the second injection cavity 22, and an injection channel 23 is provided on the first surface 2a, which extends from the first surface 2a to the first injection cavity 21. Specifically, during injection molding, molten material can be injected through the injection channel 23 on the first surface 2a. The molten material flows into the first injection cavity 21 through the injection channel 23, and then flows into the second injection cavity 22 through the connection between the first injection cavity 21 and the second injection cavity 22, thus forming a complete basket 200 structure.

[0044] Optionally, the materials of the first mold 1 and the second mold 2 can be steel, cast iron, aluminum, etc., and this application embodiment does not limit this.

[0045] Thus, this embodiment of the application, by transferring the injection channel 23 from the basket rod 201 to the basket tooth 202, that is, connecting the injection channel 23 to the first injection cavity 21 and then to the second injection cavity 22, avoids the defect of the injection channel 23 being located at the position of the basket rod 201 in the traditional basket 200 injection molding. This makes the cooling rate of the basket rod 201 more uniform, reduces the stress concentration of the basket rod 201, improves the strength of the basket rod 201, and avoids the basket rod 201 from breaking during the clamping and movement of the basket 200. This also avoids the situation where residual liquid at the broken basket rod 201 causes the battery cell to be defective, improves the production efficiency of the battery cell, and ensures the production yield of the battery cell.

[0046] Please see Figure 2 and Figure 3 In some embodiments, there are multiple first injection cavities 21 and injection channels 23. Multiple first injection cavities 21 are arranged at intervals along the extension direction of the second injection cavity 22, and multiple injection channels 23 are connected to multiple first injection cavities 21 in a one-to-one correspondence.

[0047] Specifically, the design of multiple injection channels 23 allows the molten material to enter the first injection cavity 21 and the second injection cavity 22 simultaneously from multiple injection channels 23, reducing the uneven flow of molten material caused by filling a single channel. This avoids the problem of local molten material accumulation or insufficient filling in the first injection cavity 21 and the second injection cavity 22, ensuring that the molten material in the first injection cavity 21 and the second injection cavity 22 can be filled within the optimal time.

[0048] Meanwhile, because the molten material is more evenly distributed in the first injection cavity 21 and the second injection cavity 22, the cooling process is also more consistent. In the prior art, due to uneven molten material flow, the portion near the injection channel 23 cools slower, while the portion farther from the injection channel 23 cools faster. This difference in cooling rate can lead to uneven shrinkage inside the first injection cavity 21 and the second injection cavity 22, resulting in a decrease in the strength of the turnbuckle 201. Multiple injection channels 23 make the cooling rate in the second injection cavity 22 more uniform, thereby reducing the problems of uneven shrinkage and stress concentration at the turnbuckle 201 caused by uneven cooling.

[0049] In addition, the uniform filling and cooling process not only improves the strength of the basket handle 201, but also reduces the defect rate of the basket handle 201 caused by defects such as insufficient filling, warping, and shrinkage marks, thereby improving production efficiency and reducing production costs.

[0050] Optionally, injection molding equipment with multiple injection ports can be selected during injection molding to ensure that each injection channel 23 can simultaneously perform injection molding of the basket 200, thereby saving injection molding time and energy required for injection molding.

[0051] Please see Figure 2 and Figure 3 In some embodiments, the axes of the multiple injection channels 23 are parallel to each other. The parallel axes of the multiple injection channels 23 ensure a more uniform flow of molten material within the first injection cavity 21 and the second injection cavity 22. This design avoids uneven molten material filling caused by an unreasonable layout of the injection channels 23, thereby reducing defects such as voids or warping of the turnbuckle 201 caused by flow imbalance.

[0052] Meanwhile, the parallel design of multiple injection channels 23 can realize the simultaneous filling of multiple cavities, and the flow rate of the molten material in each injection channel 23 is consistent, reducing the molding cycle time and ensuring the uniformity of the flow of molten material in the second injection cavity 22, thereby improving the production efficiency of the basket 200 injection molding and reducing the production cost of the basket 200.

[0053] Optionally, the first mold 1 and the second mold 2 can be provided with cooling channels. The cooling channels can be evenly arranged around the cavity, and the parallel injection channel 23 design helps to achieve a balanced cooling system. This ensures that the cooling rate of each first injection cavity 21 is consistent, reducing dimensional deviations and warping of the basket 200 caused by uneven cooling, thereby ensuring the strength of the injection-molded basket 200.

[0054] Please see Figure 3 In some embodiments, along the direction from the first mold 1 to the second mold 2, the cross-sectional area of ​​the first injection cavity 21 gradually decreases along the extending direction of the second injection cavity 22. It can be understood that the basket teeth 202 injection molded using the injection mold 100 have a gradually decreasing cross-sectional area along the direction from the first mold 1 to the second mold 2.

[0055] Specifically, the gradually decreasing cross-sectional area of ​​the basket teeth 202 avoids solution residue issues caused by the adhesion between the basket teeth 202 and the silicon wafer. During the wet cleaning and processing of silicon wafers, solution residue can lead to surface contamination or corrosion, thus affecting the quality of the solar cells. By optimizing the cross-sectional area of ​​the basket teeth 202, solution residue between the silicon wafer and the basket teeth 202 can be effectively reduced, thereby improving the yield of the silicon wafer.

[0056] Meanwhile, the gradually decreasing cross-sectional area of ​​the basket teeth 202 can improve its strength and stability through structural optimization without adding extra material. During the handling and processing of silicon wafers, the basket teeth 202 need to withstand certain pressure and friction. The gradually decreasing cross-sectional area design of the basket teeth 202 can reduce deformation or damage, thereby extending the service life of the basket 200.

[0057] In addition, the gradually decreasing cross-sectional area of ​​the basket teeth 202 can better adapt to the shape and size of the silicon wafer, reduce the friction and collision between the silicon wafer and the basket teeth 202 during handling and processing, reduce the generation of fragments and liquid-laden wafers, and thus improve the overall yield of the solar cells.

[0058] Please see Figure 3 In some embodiments, the first injection cavity 21 is a frustum-shaped cavity, the axis of which is perpendicular to the extension direction of the second injection cavity 22, and the larger end of the frustum-shaped cavity is connected to the second injection cavity 22.

[0059] The frustum-shaped cavity structure causes the cross-sectional area of ​​the basket teeth 202 to gradually decrease after injection molding, effectively reducing solution residue between the silicon wafer and the basket teeth 202. During the wet processing of silicon wafers, solution residue can lead to surface contamination or corrosion, thus affecting the quality of the solar cells. By optimizing the cross-sectional area design of the basket teeth 202, the yield of silicon wafers can be improved, and the basket mark problem caused by solution residue can be reduced.

[0060] Understandably, the frustum-shaped cavity design effectively reduces material waste during injection molding. Because the molten material flows more evenly and fills more completely, it reduces the scrap rate caused by insufficient or uneven filling. The frustum-shaped cavity design also reduces wear on the injection mold 100 caused by uneven molten material flow during injection molding. The uniform molten material flow and cooling process extend the service life of the injection mold 100 and reduce the frequency of mold replacement.

[0061] Furthermore, the frustum-shaped cavity design simplifies the machining process of the injection mold 100. Due to the relatively simple structure of the frustum-shaped cavity, the machining difficulty of the injection mold 100 is reduced, and machining accuracy is easier to control. The frustum-shaped cavity also facilitates the maintenance and replacement of the injection mold 100, reducing downtime caused by damage to the injection mold 100 and improving production efficiency.

[0062] Optionally, the first injection cavity 21 can be conical or pyramidal, and this embodiment does not limit this.

[0063] Please see Figure 5 , Figure 5 for Figure 2 In the enlarged view at point B, in some embodiments, the injection channel 23 includes an inlet 23a and an outlet 23b. The inlet 23a is disposed on the first surface 2a, and the outlet 23b is connected to the first injection cavity 21. The area of ​​the outlet 23b is smaller than the area of ​​the smaller end of the frustum-shaped cavity.

[0064] The area of ​​the discharge port 23b is smaller than the area of ​​the smaller end of the frustum-shaped cavity, which allows the molten material at the injection channel 23 and the molten material at the basket tooth 202 to be better distinguished after cooling. This facilitates the shearing of unnecessary parts in subsequent processing and improves the production efficiency of the basket tooth 202.

[0065] Furthermore, the smaller area of ​​the outlet 23b compared to the smaller end of the frustoconical cavity reduces waste of molten material due to insufficient or excessive filling. Precise control of the molten material filling amount effectively reduces waste generation and improves molten material utilization.

[0066] Please see Figure 6 , Figure 6This is a schematic diagram of the structure of the injection channel 23 provided in the embodiments of this application. In some embodiments, a separator 231 is provided in the injection channel 23. The separator 231 divides at least a portion of the injection channel 23 into a plurality of sub-injection channels 232 extending in the direction from the first mold 1 to the second mold 2. The plurality of sub-injection channels 232 are arranged circumferentially along the injection channel 23.

[0067] It is understandable that when the size of the outlet 23b is too small, the molten material will generate a large shear force when passing through, leading to the deterioration of the molten material properties near the outlet 23b, which may result in flow marks, surface yellowing, or decreased strength. By setting the separator 231 to divide the injection channel 23 into multiple sub-injection channels 232, the flow path of the molten material can be dispersed, the shear force within a single injection channel 23 can be reduced, thereby reducing the risk of molten material deterioration due to excessive shearing and ensuring the quality of the basket 200.

[0068] Similarly, if the outlet 23b is too large, the cooling time will be prolonged, and the outlet 23b area is easily damaged during demolding. The design of the separator 231 allows the molten material to flow in multiple sub-injection channels 232, reducing the amount of molten material in a single injection channel 23, thereby accelerating the cooling rate and shortening the cooling time. In addition, the layout of multiple sub-injection channels 232 helps to distribute heat more evenly, avoiding local overheating or undercooling, and reducing warping and deformation of the basket 200 caused by uneven cooling.

[0069] Please see Figure 6 In some embodiments, there are two separators 231, which are arranged perpendicularly to each other, so that at least part of the injection channel 23 is divided into four sub-injection channels 232 arranged circumferentially along the injection channel 23.

[0070] Specifically, there are two separators 231, which are arranged perpendicularly to each other, that is, the two separators 231 are arranged in a cross shape inside the injection channel 23. In this way, the excess part that exceeds the injection port during injection is clearly distinguished from the basket teeth 202 that need to be retained. This is conducive to accurately cutting off the excess part after demolding, improving the demolding efficiency of the basket 200, and reducing the damage to the basket 200 caused by improper post-processing.

[0071] Please see Figure 5 In some embodiments, the injection channel 23 includes a first segment 233 and a second segment 234 that are connected to each other. The end of the first segment 233 away from the second segment 234 passes through the first surface 2a, and the end of the second segment 234 away from the first segment 233 is connected to the first injection cavity 21. The cross-sectional area of ​​the second segment 234 gradually decreases along the extension direction of the second injection cavity 22.

[0072] By gradually reducing the cross-sectional area of ​​the second segment 234 along the extension direction of the second injection cavity 22, the molten material is compressed, the density of the molten material is increased, and the mechanical strength and wear resistance of the basket 200 are enhanced, making the produced basket teeth 202 and basket rod 201 more robust and durable.

[0073] Secondly, the gradually decreasing cross-sectional area of ​​the second segment 234 along the extension direction of the second injection cavity 22 helps to expel air during the injection molding process. When the molten material enters the first injection cavity 21 through the injection channel 23, the reduced area of ​​the outlet 23b causes the molten material to be subjected to greater pressure, thereby more effectively squeezing air out of the first injection cavity 21. This avoids the formation of air bubbles and voids inside the basket 200, improving the overall quality and appearance of the basket 200.

[0074] A second aspect of this application provides an injection molding device, including an injection mold 100. The injection molding device provided in this application transfers the injection channel 23 from the basket rod 201 to the basket teeth 202, that is, connects the injection channel 23 to the first injection cavity 21 and then to the second injection cavity 22. This avoids the defect of the injection channel 23 being located at the position of the basket rod 201 in traditional basket 200 injection molding, making the cooling rate of the basket rod 201 more uniform, reducing stress concentration in the basket rod 201, improving the strength of the basket rod 201, and preventing damage to the basket rod 201 during clamping and movement of the basket 200. This also avoids residual chemicals at the damaged area of ​​the basket rod 201 causing defects in the battery cells, improving the production efficiency of the battery cells and ensuring the production yield of the battery cells.

[0075] It is understood that the injection molding equipment using the injection mold 100 of the above embodiments has all the technical effects of the injection mold 100 of the above embodiments, and will not be repeated here.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An injection mold for injection molding a flower basket, characterized by, The injection mold comprises: a first mold; a second mold, which is detachably connected with the first mold, a first injection cavity is formed in the second mold, the first injection cavity is used for injection molding a flower basket tooth, a second injection cavity is formed between the second mold and the first mold, the second injection cavity is used for injection molding a flower basket rod, the first injection cavity and the second injection cavity are in communication, the second mold comprises a first surface, the first surface is located on a side of the second mold away from the first mold, an injection channel is arranged on the first surface, the injection channel penetrates from the first surface to the first injection cavity.

2. The injection mold according to claim 1, wherein: the number of the first injection cavities and the injection channels is multiple, multiple first injection cavities are arranged in a spaced manner along the extension direction of the second injection cavity, and multiple injection channels correspond to multiple first injection cavities one by one.

3. The injection mold according to claim 2, wherein: the axes of multiple injection channels are parallel to each other.

4. The injection mold according to claim 1, wherein: in a direction of the first mold pointing to the second mold, the cross-sectional area of the first injection cavity along the extension direction of the second injection cavity gradually decreases.

5. The injection mold according to claim 4, wherein: the first injection cavity is a frustum-shaped cavity, the axis of the frustum-shaped cavity is perpendicular to the extension direction of the second injection cavity, and the end of the frustum-shaped cavity with a larger area is in communication with the second injection cavity.

6. The injection mold according to claim 5, wherein: the injection channel comprises an inlet and an outlet, the inlet is arranged on the first surface, the outlet is in communication with the first injection cavity, and the area of the outlet is smaller than the area of the end of the frustum-shaped cavity with a smaller area.

7. The injection mold according to claim 1, wherein: a partition is arranged in the injection channel, the partition divides at least part of the injection channel into multiple sub-injection channels extending in a direction of the first mold pointing to the second mold, and multiple sub-injection channels are arranged in a circumferential direction of the injection channel.

8. The injection mold according to claim 7, wherein: the number of the partitions is two, the two partitions are arranged perpendicular to each other, so that at least part of the injection channel is divided into four sub-injection channels arranged in a circumferential direction of the injection channel.

9. The injection mold according to claim 1, wherein: the injection channel comprises a first section and a second section in communication with each other, the end of the first section away from the second section penetrates the first surface, the end of the second section away from the first section is in communication with the first injection cavity, and in a direction of the second mold pointing to the first mold, the cross-sectional area of the second section along the extension direction of the second injection cavity gradually decreases.

10. An injection molding apparatus characterized by comprising: The injection mold according to any one of claims 1 to 9. ​

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