Injection mold of handle

Abstract

The handle injection mold comprises an upper mold body, a lower mold body, a plurality of forming assemblies, a transmission assembly and a driving device, and the forming assemblies, the upper mold body and the lower mold body are matched with one another to form a cavity used for forming a plurality of needed handles; the forming assembly is arranged on the lower die and used for forming an arc-shaped notch of the handle, the driving device is installed on the lower die, the input end of the transmission assembly is connected with the output end of the driving device, and the output end of the transmission assembly is connected with the forming assembly. The synchronous demolding device has the beneficial effects that the driving device is arranged, and then the synchronous demolding process of a plurality of handle products can be achieved under the action of the transmission assembly, so that the cost is remarkably reduced, meanwhile, the complexity of a control system is reduced, the mold structure is simplified, and due to the design, the production efficiency is improved, and the production cost is reduced. And the product quality is also ensured.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to an injection mold for a handle. Background Art

[0002] Injection molds are tools for producing plastic products; they are also tools that give plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and then cooling and solidifying to obtain a molded product.

[0003] like Figure 1 As shown, it is a structural schematic diagram of a handle 1 product, and the handle 1 has an arc-shaped notch 101. During the demoulding process after molding, the corresponding core block needs to slide in an arc shape and separate from the arc-shaped notch 101. In the prior art, such as the patent CN219564025U, an automobile air-conditioning housing injection mold is disclosed. The patent mainly realizes the arc-shaped sliding of the core block through the action of a hydraulic cylinder in conjunction with other structures. However, the patent has the following disadvantages: the demoulding of a product requires one hydraulic cylinder to drive, and for multiple products, multiple hydraulic cylinders are required to drive, which increases the cost and complicates the mold structure. Therefore, an injection mold for a handle is proposed to solve the above technical problems. Summary of the invention

[0004] One of the purposes of the present application is to provide an injection mold for a handle.

[0005] In order to achieve the above objectives, the technical solution adopted in the present application is: an injection mold for a handle, comprising an upper mold, a lower mold, multiple molding components, a transmission component and a driving device, the molding components, the upper mold and the lower mold cooperate with each other to form a cavity for molding multiple handles required, the molding component is arranged on the lower mold and is used to mold the arc-shaped notch of the handle, the driving device is installed on the lower mold, the input end of the transmission component is connected to the output end of the driving device, and the output end of the transmission component is connected to the molding component; when demolding, the driving device is suitable for driving the molding component to slide in an arc shape along the arc-shaped notch through the transmission component, thereby synchronously disengaging the multiple molding components from the corresponding handles.

[0006] Preferably, a telescopic device is vertically installed in the lower mold, and a top plate is installed at the piston end of the telescopic device. The molding assembly, the transmission assembly and the driving device are all located on the top plate; before the arc-shaped groove is demolded, the telescopic device is suitable for driving the top plate to move vertically upward, thereby allowing the molding assembly to drive the handle to separate from the lower mold and the gate.

[0007] Preferably, the top plate is provided with a plurality of arc-shaped guide grooves, the molding component is slidably matched with the guide grooves, the transmission component includes a traction plate and a plurality of traction rods, the traction plate is connected to the driving device, one end of the traction rod is hinged to the traction plate, and the other end of the traction rod is hinged to the molding component; when demolding, the driving device is suitable for driving the traction plate to translate, and then cooperate with the traction rod to drive the molding component to slide in an arc shape along the guide groove until it is disengaged from the arc-shaped notch.

[0008] Preferably, the driving device is a hydraulic cylinder, which is mounted on the traction plate, and a piston end of the hydraulic cylinder is connected to the top plate; when demoulding is performed, the hydraulic cylinder is suitable for extending and driving the traction plate to translate.

[0009] Preferably, a positioning assembly is provided between the upper mold and the molding assembly; when the mold is closed, the upper mold is suitable for limiting the molding assembly through the positioning assembly, so that the molding assembly is locked at the corresponding molding position.

[0010] Preferably, the positioning assembly includes a positioning rod and a positioning groove, the positioning rod is installed on the upper mold, and the positioning groove is arranged on the molding assembly; when the mold is closed, the positioning rod is plugged into and matched with the positioning groove.

[0011] Preferably, the positioning assembly further comprises a positioning hole, which is arranged in the lower mold and matches the positioning rod; when the mold is closed, the positioning rod is suitable for passing through the positioning groove and extending to the positioning hole.

[0012] Preferably, the lower end of the positioning rod is in a wedge-shaped structure, and the bottom end of the positioning rod is provided with a chamfered structure, so that the lower end of the positioning rod forms a clearance fit with the positioning groove and the positioning hole.

[0013] Preferably, the molding assembly includes a core block and a slider connected to each other, the core block is used to mold the arc-shaped notch, and the slider is slidably matched with the guide groove; when the mold is closed, the slider coincides with the axis of the traction rod.

[0014] Preferably, a cooling pipe is provided inside the molding component, and a water inlet pipe and a water outlet pipe are respectively provided at both ends of the cooling pipe corresponding to the bottom end of the molding component, and a plurality of arc-shaped limiting grooves are penetrated on the top plate, and the water inlet pipe and the water outlet pipe both pass through the limiting grooves; when demolding the arc-shaped groove, the water inlet pipe and the water outlet pipe both slide in an arc shape along the limiting groove.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] The present invention is provided with a driving device, and then the synchronous demoulding process of multiple handle products can be realized under the action of the transmission component, thereby significantly reducing the cost, while also reducing the complexity of the control system and simplifying the mold structure. This design not only improves production efficiency, but also ensures product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the existing product structure.

[0018] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the upper mold after the upper mold is opened.

[0020] Figure 4 It is a schematic diagram of the enlarged structure of location E of the present invention.

[0021] Figure 5 It is a schematic diagram of the working principle of the handle product of the present invention when it is separated from the lower mold.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the handle product of the present invention when it is separated from the lower mold.

[0023] Figure 7 It is a schematic structural diagram of the working principle when the forming component of the present invention is separated from the arc-shaped notch.

[0024] Figure 8 It is a schematic diagram of the bottom structure of the top plate of the present invention.

[0025] Fig. 9 It is a schematic diagram of the cooling system of the molding assembly of the present invention.

[0026] Fig.10 It is a schematic diagram of the structure of the positioning component of the present invention.

[0027] In the figure: 1. handle; 101. arc-shaped notch; 2. upper mold; 3. lower mold; 4. driving device; 5. transmission assembly; 501. traction plate; 502. traction rod; 6. telescopic device; 7. top plate; 8. molding assembly; 801. core block; 802. slider; 9. guide groove; 10. gate; 11. limit groove; 12. water inlet pipe; 13. water outlet pipe; 14. cooling pipe; 15. positioning assembly; 1501. positioning rod; 1502. positioning groove; 1503. positioning hole. DETAILED DESCRIPTION

[0028] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0030] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0031] One of the preferred embodiments of the present application is as follows: Figures 1 to 10 As shown, an injection mold for a handle includes an upper mold 2, a lower mold 3, a plurality of molding components 8, a transmission component 5 and a driving device 4, wherein the molding component 8, the upper mold 2 and the lower mold 3 cooperate with each other to form a cavity for molding the plurality of handles 1 required, the molding component 8 is arranged on the lower mold 3 and is used for molding the arc-shaped notch 101 of the handle 1, the driving device 4 is installed on the lower mold 3, the input end of the transmission component 5 is connected to the output end of the driving device 4, and the output end of the transmission component 5 is connected to the molding component 8.

[0032] It can be understood that there are multiple cavities in the mold body (i.e., the upper mold 2 and the lower mold 3), so that multiple handles 1 can be molded at one time. When demolding, the driving device 4 is started, and the driving device 4 acts on the transmission component 5, and then the multiple molding components 8 can be driven to slide along the arc-shaped notch 101 of the handle 1 under the action of the transmission component 5, so that the multiple molding components 8 slide synchronously and demold with the corresponding handles 1.

[0033] It can be seen that in the present application, only one driving source (i.e., driving device 4) is used, and then the synchronous demolding process of multiple handle 1 products can be realized under the action of transmission assembly 5, thereby significantly reducing the cost, while also reducing the complexity of the control system and simplifying the mold structure. This design not only improves production efficiency, but also ensures product quality.

[0034] Based on the above embodiments, one of the embodiments of the present application is: Figure 5As shown, a telescopic device 6 is vertically installed in the lower mold 3 , a top plate 7 is installed on the piston end of the telescopic device 6 , and a molding assembly 8 , a transmission assembly 5 and a driving device 4 are all located on the top plate 7 .

[0035] It should be known that after the upper mold 2 is opened, the upper mold 2 will demold the core on the outside of the handle 1 through the cooperation of the inclined guide pins and the inclined guide grooves (this is also common knowledge known to those skilled in the art), and then the demolding between the molding component 8 and the arc-shaped groove 101 can be achieved through the driving device 4, but at this time the handle 1 will still be located in the cavity of the lower mold 3, and finally the demolding process of the handle 1 is generally achieved through the ejector mechanism.

[0036] At this time, the handle 1 can be demoulded in the following manner: after the upper mold 2 is opened and before the arc-shaped notch 101 is demoulded (i.e., the molding component 8 is still located in the arc-shaped notch 101), Figure 5 At this time, the telescopic device 6 is started, and the telescopic device 6 will extend and drive the top plate 7 to move vertically upward. Of course, the molding component 8 will move upward synchronously with the top plate 7, and then the molding component 8 will drive the handle 1 to move upward to realize the demoulding process, as shown in FIG. Figure 5 As shown in (B); finally, the arc-shaped notch 101 is demoulded through the cooperation of the driving device 4 and the transmission assembly 5, thereby separating the entire handle 1 product from the entire mold body.

[0037] It is understandable that if Figure 4 As shown, the molded handle 1 product is connected to the gate 10 of the mold body. Specifically, it is actually connected to the molten glue that has cooled and solidified in the gate 10. Therefore, when the handle 1 is moved up to be demolded, the moved handle 1 will also be separated from the gate 10, so that the ejected product can be automatically separated from the gate 10 without the need for subsequent trimming. We can regard the molten glue that has cooled and solidified in the gate 10 as a column, and the end position of the column is connected to the product, and the connection range is small; while the lower half of the side of the column is still adhered and connected to the lower mold 3, and the connection range is large; therefore, the connection force between the column and the lower mold 3 will be greater than the connection force between the column and the product, and then the product will be automatically separated from the gate 10 when it moves up.

[0038] It can be seen that the above design does not require a conventional ejector mechanism to be provided on the mold body, thus avoiding the influence of the ejector on the mold cavity and also does not complicate the structure inside the lower mold 3, thereby providing better installation design space for other components (such as cooling water pipes), thereby improving the service life and reliability of the mold, while reducing the maintenance cost and operation complexity of the mold, making the maintenance and operation of the mold more convenient.

[0039] It should be noted that for this demoulding method, the arc-shaped slot 101 must be large enough, that is, the corresponding molding component 8 has sufficient supporting force to realize the demoulding process of the handle 1 to prevent deformation or damage during the demoulding process.

[0040] In one of the embodiments of the present application, Figure 3 As shown, a plurality of arc-shaped guide grooves 9 are provided on the top plate 7, the forming assembly 8 is slidably matched with the guide grooves 9, the transmission assembly 5 includes a traction plate 501 and a plurality of traction rods 502, the traction plate 501 is connected to the driving device 4, one end of the traction rod 502 is hinged to the traction plate 501, and the other end of the traction rod 502 is hinged to the forming assembly 8.

[0041] It can be understood that when demolding, the driving device 4 can drive the traction plate 501 to translate and move away from the handle 1, and the traction plate 501 acts on the traction rod 502, and the traction rod 502 can pull the molding component 8 to slide in an arc along the guide groove 9, thereby realizing the disengagement process between the traction rod 502 and the arc groove 101.

[0042] Exemplary: Figure 7 As shown in (C), this is the initial state. We can assume that there is a pair of handles 1 in a mold (the following embodiments are also described as a pair), and the corresponding traction rods 502 are also provided with a pair, and the products can be symmetrically arranged. Figure 7 As shown in (D), the driving device 4 drives the traction plate 501 to translate to the right, and the traction plate 501 acts on the two traction rods 502 to rotate, and then the traction rods 502 pull the two molding components 8 to slide in an arc to realize the demoulding process. Of course, as long as the length of the mold is long enough, there can be more or more pairs of handles 1 inside it, that is, the number of products in one mold can be at least two or more.

[0043] It should be noted that the specific structure and working principle of the above-mentioned driving device 4 and telescopic device 6 are well-known technologies to those skilled in the art, so they will not be elaborated in detail here; common ones include hydraulic cylinders, pneumatic cylinders and linear motors, etc., and technicians in this field can make their own choices according to actual needs. Generally, hydraulic cylinders can be selected for both.

[0044] Furthermore, in the field of molds, the driving device 4 preferably adopts a hydraulic cylinder. Figure 7 As shown in (C), we know that in the initial state, the traction plate 501 is close to the top plate 7. If the cylinder body of the hydraulic cylinder is installed on the top plate 7, it will occupy a large part of the usable area of ​​the top plate 7, and may also have a certain impact on the setting of the guide groove 9. Therefore, the drive device 4 can be installed in the following manner: Figure 3 As shown, the cylinder body of the hydraulic cylinder can be fixedly installed at the right side of the traction plate 501 , and the piston end of the hydraulic cylinder passes through the traction plate 501 and is connected to the top plate 7 .

[0045] It is understandable that if Figure 7 As shown in (C), the hydraulic cylinder is in a retracted state in the initial state, and the cylinder body of the hydraulic cylinder is away from the top plate 7, so as not to affect the installation space on the top plate 7. When demoulding, the hydraulic cylinder can be extended, so the traction plate 501 can be translated to the right under the action of the cylinder body of the hydraulic cylinder to drive the demoulding process of the molding component 8.

[0046] On the other hand, it should be known that the force of the molding component 8 during demoulding is definitely greater than the force during mold closing, because there is an adhesion force between the molding component 8 and the handle 1 product during demoulding. In general hydraulic cylinders, the thrust of the hydraulic cylinder is much greater than the pulling force, so the demoulding process is achieved by extending the hydraulic cylinder, which can more effectively overcome the adhesion force and ensure that the molding component 8 can smoothly remove the handle 1 product from the mold.

[0047] In one of the embodiments of the present application, Fig.10 As shown, in order to further improve the positioning effect of the molding component 8, a positioning component 15 can be provided between the upper mold 2 and the molding component 8. It can be understood that when the mold is closed, the upper mold 2 can limit the molding component 8 through the positioning component 15, so that the molding component 8 is locked at the corresponding molding position, thereby ensuring that the molding component 8 will not be offset during the mold closing process, thereby improving the molding quality of the subsequent handle 1 product.

[0048] Specifically, the present application does not specifically limit the structure of the positioning component 15, and a specific embodiment is provided below for illustration: Fig.10 As shown, the positioning assembly 15 includes a positioning rod 1501 and a positioning groove 1502, wherein the positioning rod 1501 is fixedly mounted on the upper mold 2, and the positioning groove 1502 is arranged on the molding assembly 8. It can be understood that when the mold is closed, the positioning rod 1501 is plugged into and matched with the positioning groove 1502, and the traction rod 502 can also limit the molding assembly 8, thereby realizing double limiting locking of the molding assembly 8, so that the limiting effect is greatly improved.

[0049] It should be known that the top end of the positioning rod 1501 is fixed on the upper mold 2, while the bottom end of the positioning rod 1501 is not limited. Therefore, in order to further improve the limiting effect, Fig.10As shown, the positioning assembly 15 also includes a positioning hole 1503, which is arranged in the lower mold 3 and matches the positioning rod 1501. It is understandable that when the mold is closed, the positioning rod 1501 can pass through the positioning groove 1502 and extend into the positioning hole 1503, thereby achieving plug-in matching with the positioning hole 1503. In this way, the top and bottom ends of the positioning rod 1501 can be limited, thereby ensuring that the molding assembly 8 remains stable during the entire mold closing process, avoiding molding defects caused by inaccurate positioning.

[0050] Furthermore, if the sizes of the positioning rod 1501 and the positioning slot 1502 are just right, then when the positioning rod 1501 is initially inserted, if there is a slight offset between the positions of the positioning rod 1501 and the positioning slot 1502, the positioning rod 1501 will not be able to be inserted into the positioning slot 1502, and in severe cases, the positioning rod 1501 may be rigidly squeezed and deformed.

[0051] Therefore, in order to solve the above technical problems, one of the embodiments of the present application is: Fig.10 As shown, the lower end of the positioning rod 1501 is in a wedge-shaped structure, and the bottom end of the positioning rod 1501 is provided with a chamfered structure, so that the lower end of the positioning rod 1501 forms a clearance fit with the positioning groove 1502 and the positioning hole 1503.

[0052] It is understandable that if Fig.10 or Figure 7 As shown, when the molding component 8 moves to the left along the guide groove 9 on the top plate 7 to the extreme position, it is the position of the molding component 8 during molding or the initial position when it is not demolded. When the molding component 8 is misplaced, it will only deviate to the right, so the wedge surface can be set at the left position of the positioning rod 1501 (i.e., at the position corresponding to the molding component 8), and then when the positioning rod 1501 is inserted downward, it can be smoothly inserted into the positioning groove 1502 under the action of the chamfering structure. Of course, when the molding component 8 is not misplaced, the positioning rod 1501 will move down unimpeded; and when the molding component 8 is offset, the wedge surface on the positioning rod 1501 will have an extrusion and guiding effect on the molding component 8, so that the molding component 8 is corrected to the initial position until the positioning rod 1501 is inserted into the positioning hole 1503, thereby completing the locking of the molding component 8.

[0053] In one of the embodiments of the present application, Figure 7 As shown, the molding assembly 8 includes a core block 801 and a slider 802 connected to each other, wherein the core block 801 is used to mold the arc-shaped notch 101, and the slider 802 is slidably matched with the guide groove 9. The slider 802 and the traction rod 502 satisfy the following relationship: Figure 7 As shown in (C) in the figure, when the mold is closed, the axis of the slider 802 coincides with the axis of the traction rod 502.

[0054] It can be understood that at this time, the axes of the slider 802 and the traction rod 502 are located in the same straight line, and this straight line can be considered to be tangent to the curve of the movement of the slider 802. In other words, the direction of the initial movement of the slider 802 can be regarded as the direction of the straight line. Therefore, the traction rod 502 can maximize the effect of limiting and locking the slider 802, thereby improving the limiting effect on the traction rod 502.

[0055] In one of the embodiments of the present application, Figure 8 and Fig. 9 As shown, the cooling system of the molding component 8 is provided: a cooling pipe 14 is arranged inside the molding component 8, and a water inlet pipe 12 and a water outlet pipe 13 are respectively arranged at both ends of the cooling pipe 14 corresponding to the bottom end of the molding component 8, and a plurality of arc-shaped limiting grooves 11 are penetrated on the top plate 7, and the water inlet pipe 12 and the water outlet pipe 13 both pass through the limiting grooves 11.

[0056] It can be understood that the water inlet pipe 12 is connected to the pumping device of the coolant, and the water outlet pipe 13 is connected to the discharge system, so that the coolant is fed in from the water inlet pipe 12 at the bottom, and then the molding component 8 is cooled through the cooling pipe 14, and finally discharged from the water outlet pipe 13. When the arc-shaped notch 101 is subsequently demolded, the molding component 8 will slide in an arc shape, such as Figure 8 As shown, at this time, the water inlet pipe 12 and the water outlet pipe 13 can both slide in an arc shape along the limiting groove 11. Of course, the pipes connected to the water inlet pipe 12 and the water outlet pipe 13 can be flexible or movable, so as not to interfere with the sliding of the water inlet pipe 12 and the water outlet pipe 13. It can be seen that through the setting of the limiting groove 11, the bottom water supply cooling of the molding component 8 can be well performed, so that the arc-shaped notch 101 can be quickly cooled and shaped, and the arrangement of the pipeline can be reasonable and orderly, thereby avoiding and reducing the complex layout of the cooling system and the possible leakage risk. In addition, the layout design of the cooling pipe 14 can ensure that the coolant is evenly distributed inside the molding component 8, thereby achieving efficient cooling of the entire molding component 8.

[0057] The working principle of the present invention is:

[0058] Demolding method 1: Figure 3 As shown, after the upper mold 2 is opened, the handle 1 product needs to be demoulded. Figure 5 As shown in (A) in the figure, the telescopic device 6 is first started, so that the telescopic device 6 is extended to lift the top plate 7 upward, so that the handle 1 product can be separated from the lower mold 3 under the driving action of the core pulling (i.e., the molding component 8), as shown in FIG. Figure 5 (B) or Figure 6 As shown. The product after being separated from the lower mold 3 is as shown Figure 7As shown in (C) in the figure, the driving device 4 is started to extend, thereby driving the traction plate 501 to move rightward, and the traction plate 501 will act on the two traction rods 502 to rotate, and then the two molding components 8 are pulled by the traction rods 502 to slide in an arc shape. At this time, the product will be against the left side of the top plate 7, so the sliding of the molding component 8 can realize the demoulding process, as shown in FIG. Figure 7 As shown in (D) in .

[0059] Demolding method 2: In fact, it is to reverse the above-mentioned demolding method: first, the driving device 4 is started to extend so that the molding component 8 is separated from the arc-shaped notch 101, and then the driving device 4 is started to shorten so that the molding component 8 is reset to the arc-shaped notch 101. At this time, the molding component 8 actually has no adhesion with the molding component 8. Then the telescopic device 6 is started, and the telescopic device 6 will extend and drive the top plate 7 to move vertically upward. Of course, the molding component 8 will move upward synchronously with the top plate 7, and then the molding component 8 will drive the handle 1 to move upward to realize the demolding process. Although the driving device 4 is started many times during this process, after the subsequent product is ejected from the lower mold 3, it has completed the separation process between the arc-shaped notch 101, and the subsequent product will not be against the top plate 7 to realize the demolding of the arc-shaped notch 101, which prevents the deformation of the product due to extrusion, thereby ensuring the quality of the product.

[0060] It should be noted that the steps of demoulding method 1 are simple, and it is mainly aimed at the product's good strength and strong ability to resist extrusion deformation, so that the product will not deform under the action of appropriate extrusion force. The steps of demoulding method 2 are slightly more complicated, but it can ensure the stability and quality of the product.

[0061] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. An injection mold for a handle, characterized in that: include: An upper die, a lower die, a plurality of molding components, a transmission component and a driving device, wherein the molding component, the upper die and the lower die cooperate with each other to form a cavity for molding a plurality of handles required, the molding component is arranged on the lower die and is used to mold the arc-shaped notches of the handles, the driving device is installed on the lower die, the input end of the transmission component is connected to the output end of the driving device, and the output end of the transmission component is connected to the molding component; During demoulding, the driving device is suitable for driving the molding components to slide in an arc shape along the arc groove through the transmission component, thereby synchronously disengaging the plurality of molding components from the corresponding handles.

2. The injection mold for the handle according to claim 1, characterized in that: A telescopic device is vertically installed in the lower mold, a top plate is installed at the piston end of the telescopic device, and the molding assembly, the transmission assembly and the driving device are all located on the top plate; Before the arc-shaped notch is demoulded, the telescopic device is suitable for driving the top plate to move vertically upward, thereby enabling the molding assembly to drive the handle to separate from the lower mold and the gate.

3. The injection mold for the handle according to claim 2, characterized in that: The top plate is provided with a plurality of arc-shaped guide grooves, the forming assembly is slidably matched with the guide grooves, the transmission assembly comprises a traction plate and a plurality of traction rods, the traction plate is connected with the driving device, one end of the traction rod is hinged with the traction plate, and the other end of the traction rod is hinged with the forming assembly; During demoulding, the driving device is suitable for driving the traction plate to translate, and then cooperates with the traction rod to drive the molding assembly to slide in an arc shape along the guide groove until it is disengaged from the arc-shaped notch.

4. The injection mold for the handle according to claim 3, characterized in that: The driving device is a hydraulic cylinder, which is installed on the traction plate, and the piston end of the hydraulic cylinder is connected to the top plate; when demoulding, the hydraulic cylinder is suitable for extending and driving the traction plate to translate.

5. The injection mold for the handle according to any one of claims 1 to 4, characterized in that: A positioning assembly is provided between the upper mold and the molding assembly; when the mold is closed, the upper mold is suitable for limiting the molding assembly through the positioning assembly so that the molding assembly is locked at the corresponding molding position.

6. The injection mold for the handle according to claim 5, characterized in that: The positioning assembly includes a positioning rod and a positioning groove, wherein the positioning rod is installed on the upper mold, and the positioning groove is arranged on the molding assembly; when the mold is closed, the positioning rod is plugged into and matched with the positioning groove.

7. The injection mold for the handle according to claim 6, characterized in that: The positioning assembly also includes a positioning hole, which is arranged in the lower mold and is adapted to the positioning rod; when the mold is closed, the positioning rod is suitable for passing through the positioning groove and extending to the positioning hole.

8. The injection mold for the handle according to claim 7, characterized in that: The lower end of the positioning rod is in a wedge-shaped structure, and the bottom end of the positioning rod is provided with a chamfered structure, so that the lower end of the positioning rod forms a clearance fit with the positioning groove and the positioning hole.

9. The injection mold for the handle according to claim 3, characterized in that: The molding assembly includes a core block and a slider connected to each other. The core block is used to mold the arc-shaped notch. The slider is slidably matched with the guide groove. When the mold is closed, the slider coincides with the axis of the traction rod.

10. The injection mold for the handle according to claim 2, characterized in that: A cooling pipe is arranged inside the molding component, and a water inlet pipe and a water outlet pipe are respectively arranged at both ends of the cooling pipe corresponding to the bottom end of the molding component. A plurality of arc-shaped limiting grooves are penetrated on the top plate, and the water inlet pipe and the water outlet pipe both pass through the limiting grooves; when demolding the arc-shaped groove, the water inlet pipe and the water outlet pipe both slide in an arc shape along the limiting groove.

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