An injection mold and a fixed mold ejecting slider driving core-pulling pin mechanism

Abstract

This application relates to an injection mold and a fixed mold ejecting slider driving core-pulling pin mechanism thereof, including a moving mold, a fixed mold and a core-pulling pin, and further including an ejecting seat and a limiting component; the ejecting seat is slidably connected to the fixed mold, and a first spring for driving the ejecting seat to eject along direction A during mold opening is provided between the ejecting seat and the fixed mold; the core-pulling pin is slidably connected to the ejecting seat, and a second spring for driving the core-pulling pin to eject along direction B during mold opening is provided between the core-pulling pin and the ejecting seat, and the core-pulling pin realizes the demolding action along the core direction C with the sliding of the ejecting seat during mold opening. The limiting component is respectively used for limiting the sliding of the ejecting seat on the fixed mold and the sliding of the core-pulling pin on the ejecting seat. During mold opening, the ejecting seat is ejected along direction A by the first spring, and at the same time, the core-pulling pin is ejected along direction B by the second spring. Since the core-pulling pin is slidably connected to the ejecting seat, the movement of the two realizes core-pulling demolding in the core-pulling direction C according to the parallelogram rule, which is convenient for side core-pulling of the core-pulling holes on the product.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molds, and particularly to an injection mold and a fixed mold ejecting slider-driven core-pulling needle mechanism thereof. Background Art

[0002] ‌Injection mold demolding‌ refers to the process of removing plastic products from the mold cavity during the injection molding process. Demolding is one of the key steps in injection molding, directly affecting the quality and production efficiency of products. Among them, the factors affecting the demolding of plastic parts mainly include: the shape of the plastic part, the performance of the plastic part, and the surface roughness of the core; in the demolding process of some existing injection molds, the gate remaining on the product can also be removed.

[0003] In the prior art, the cooperation of inclined guide posts and sliders or the method of driving sliders by oil cylinders is often used for side core-pulling movement on the fixed mold. However, referring to Figure 16 and Figure 17 , as Figure 16 shows, there are a large number of hole structures set on the product, and as Figure 17 shows, the axial directions of some core-pulling holes are not parallel to the mold opening direction, and the included angle between the central axis and the mold opening direction is small, and the side core-pulling movement on the fixed mold cannot be carried out by the above methods. Summary of the Invention

[0004] In order to facilitate the demolding of products, the present application provides an injection mold and a fixed mold ejecting slider-driven core-pulling needle mechanism thereof.

[0005] The injection mold and the fixed mold ejecting slider-driven core-pulling needle mechanism provided by the present application adopt the following technical solutions:

[0006] A fixed mold ejecting slider-driven core-pulling needle mechanism includes a moving mold, a fixed mold, and a core-pulling needle, and further includes an ejecting seat and a limiting component;

[0007] The ejecting seat is slidably connected to the fixed mold, and a first spring for driving the ejecting seat to eject along direction A during mold opening is arranged between the ejecting seat and the fixed mold;

[0008] The core-pulling needle is slidably connected to the ejecting seat, a second spring for driving the core-pulling needle to eject along direction B during mold opening is arranged between the core-pulling needle and the ejecting seat, and the core-pulling needle realizes the demolding action along core direction C during mold opening with the sliding of the ejecting seat;

[0009] The limiting component is respectively used for limiting the sliding of the ejecting seat on the fixed mold and the sliding of the core-pulling needle on the ejecting seat.

[0010] By adopting the above technical solution, when the mold is opened, the ejection seat is ejected in direction A by the first spring, and the core pulling pin is ejected in direction B by the second spring. Because the core pulling pin is slidably connected to the ejection seat, the movement of the two according to the parallelogram law achieves demolding in direction C, facilitating side core pulling of the core pulling hole on the product and reducing the possibility of core pulling deformation. During the mold closing process, the movable mold moves to abut the ejection seat, pushing the ejection seat to move until it returns to its original position.

[0011] An injection mold includes several oblique rods, a drive assembly and a fixed mold pop-up slider to drive a core-pulling needle mechanism. Several of the oblique rods are respectively inserted in an oblique direction and slidably connected to the fixed mold plate. Several of the oblique rods are respectively detachably connected with cutting heads. The drive assembly is used to drive the variable speed sliding of the several oblique rods. When the mold is opened, the drive assembly first drives the several oblique rods to eject the product, and then accelerates the driving of the several oblique rods until the several cutting heads abut against each other.

[0012] By adopting the above technical solution, a plurality of inclined rods are driven by a driving assembly to move obliquely, and the inclined rods are first moved slowly to eject the product and separate the product from the fixed mold of the mold, and then the movement of the inclined rods is accelerated so that the blades on the plurality of inclined rods simultaneously cut the gate on the gate product; the mold can simultaneously cut the gate during the ejection and demoulding process, thereby achieving the effect of slow ejection and fast cutting, reducing the possibility of product damage during the ejection process, and making the gate cut smooth, facilitating product demoulding, and improving production efficiency and product quality.

[0013] Preferably, the driving assembly includes a sliding plate and a cam, the sliding plate is slidably connected to the fixed mold, and the several inclined rods are respectively slidably connected to the sliding plate, the cam is rotatably connected to the fixed mold, the circumferential side surface of the cam abuts against the sliding plate, and a third spring is provided between the sliding plate and the fixed mold for driving the sliding plate to reset when the mold is closed.

[0014] By adopting the above technical solution, the sliding plate is slidably connected to the fixed mold, providing a sliding support and guide for the diagonal rod. The cam is rotatably connected to the fixed mold, with its circumferential side abutting the sliding plate. Through its own rotation, it converts rotational motion into linear motion of the sliding plate, thereby providing the required driving force for the diagonal rod. By utilizing the curvilinear variation of the cam profile, the sliding plate can achieve different movement speeds at different positions, thereby achieving variable speed drive for the diagonal rod. During the mold opening process, the diagonal rod is initially ejected at a slower speed through the rotation of the cam, and then accelerated until the cutting heads abut against each other, meeting the speed variation requirements throughout the entire operation. During the mold closing process, a third spring drives the sliding plate back to its initial position, preparing for the next mold opening operation. Ensuring the accurate reset of the sliding plate helps to ensure the motion accuracy and stability of the entire drive assembly and diagonal rod mechanism during each injection cycle.

[0015] Preferably, the driving assembly further comprises a rack, a gear is coaxially and fixedly connected to the cam, the rack is arranged on the pop-up seat, and the rack is meshed with the gear.

[0016] By adopting the above technical solution, the rack is set on the pop-up seat. When the pop-up seat moves, the rack will move with the pop-up seat. Through the meshing connection between the gear and the rack, the cam coaxially fixed with the gear is driven to rotate, realizing the conversion from the linear motion of the pop-up seat to the rotation of the cam, providing a power source for the movement of subsequent components such as the diagonal rod. The meshing transmission between the gear and the rack has high reliability and stability. The tooth shape matching between them can withstand large loads in the process of transmitting motion and power, and is not prone to slipping or tooth disengagement. Even in the frequent mold opening and closing cycles, the normal operation of the drive component can be guaranteed. This reliability and stability helps to improve the working efficiency and service life of the entire injection mold, and reduce production interruptions and maintenance costs caused by failure of the drive component.

[0017] Preferably, there are multiple groups of inclined rods and driving components, and the multiple groups of inclined rods and driving components correspond to multiple gates on the product respectively. A plurality of pop-up blocks are slidably connected to the fixed mold, and the multiple groups of racks are fixedly connected to the multiple pop-up blocks respectively, and the multiple groups of racks are engaged with corresponding gears respectively.

[0018] By adopting this technical solution, the treatment of multiple gates on a product can affect the overall quality and appearance of the product. By using multiple sets of corresponding tilt rods and drive components, the treatment and effect at each gate can be consistent, thus ensuring consistent product quality at all gates, reducing product defects caused by gate treatment differences, and improving product quality and molding effects.

[0019] Preferably, it further includes a connecting member. A forming block is slidably connected to the inclined rod along the mold opening direction. A moving block is slidably connected to the inclined rod. The cutting head is detachably connected to the moving block. The connecting member is used to connect the forming block and the moving block. During the mold opening process, the forming block slides towards the inclined rod side, and the cutting head slides to be flush with the forming block. During the mold closing process, the forming block slides towards the side away from the inclined rod, and the cutting head slides below the forming block.

[0020] By adopting the above technical solution, the connecting member is used to connect the forming block and the moving block. During the mold opening process, it ensures that the forming block and the moving block can move synchronously. During the mold opening process, as the forming block slides, the cutting head also slides to be flush with the forming block. At this time, the cutting head is in a suitable position to perform cutting or separating operations on the product. After mold closing, the cutting head slides below the forming block, so that during the mold closing process, the cutting head will not interfere with other mold components; it enables the cutting head to ensure the smooth demolding of the product and necessary post-treatment operations during the mold opening and closing processes of the mold, and also ensures the normal mold closing and long-term stable operation of the mold, improving the efficiency of injection molding production and the product quality.

[0021] Preferably, the connecting member is a guide rod, and a "T" - shaped groove is provided on the inclined rod; one end of the guide rod is slidably connected in the "T" - shaped groove along the mold opening direction, the other end of the guide rod is fixedly connected to the forming block, a guide groove is provided on the guide rod, and the end of the guide groove away from the forming block is inclined, and one end of the moving block is slidably connected in the guide groove.

[0022] By adopting the above technical solution, a guide groove with an inclined surface is provided on the guide rod, and one end of the moving block is slidably connected in the guide groove. When the moving block moves under the action of the driving component, contacting the inclined surface in the guide groove will cause a component force in the inclined surface direction on the guide rod, thereby pushing the guide rod and the forming block connected thereto to move. At the same time, since the moving block is connected to the cutting head, it also indirectly drives the movement of the cutting head, enabling the cutting head to accurately slide to be flush with the forming block for cutting and other operations during mold opening, and slide below the forming block to avoid interference during mold closing.

[0023] Preferably, an abutting block is provided on the fixed mold. During the mold closing process, the side surface of the forming block close to the inclined rod moves until it abuts against the abutting block, and the side surface of the inclined rod also abuts against the abutting block.

[0024] By adopting the above technical solution, the side surface of the inclined rod abuts against the abutting block, which limits the position of the inclined rod on the fixed mold and the sliding of the inclined rod, reducing the possibility of deviation in the movement of the inclined rod, so as to improve the accuracy and repeatability of the movement of the inclined rod.

[0025] The technical effects of the present invention are mainly reflected in the following aspects:

[0026] 1. In the present invention, by providing a pop-up seat, when the mold is opened, the pop-up seat is ejected along direction A by the first spring, and at the same time, the core-pulling pin is ejected along direction B by the second spring. Since the core-pulling pin is slidably connected to the pop-up seat, according to the parallelogram law of their movements, demolding in the core-pulling direction C is achieved, facilitating side core-pulling of the core-pulling holes on the product and reducing the possibility of core-pulling deformation.

[0027] 2. In the present invention, by providing inclined rods and blade heads, several inclined rods are driven by a driving component to move obliquely. First, the inclined rods move slowly to eject the product, causing the product to separate from the fixed mold of the mold. Then, the movement of the inclined rods is accelerated, and the blade heads on several inclined rods simultaneously cut the gate on the gate product; enabling the mold to cut the gate simultaneously during the ejection and demolding process, so as to achieve the effect of slow ejection and fast cutting, reducing the possibility of product breakage during the ejection process, and at the same time making the cut of the gate flat, facilitating product demolding, and improving production efficiency and product quality.

[0028] 3. In the present invention, by providing a forming block and a connecting piece, the connecting piece is used to connect the forming block and the moving block. During the mold opening process, it ensures that the forming block and the moving block can move synchronously. During the mold opening process, as the forming block slides, the blade head also slides to be flush with the forming block. At this time, the blade head is in a suitable position to perform cutting or separating operations on the product. After the mold is closed, the blade head slides below the forming block, so that during the mold closing process, the blade head will not interfere with other mold components; enabling the blade head to ensure the smooth demolding of the product and necessary post-processing operations during the mold opening and closing processes of the mold, and at the same time ensuring the normal mold closing and long-term stable operation of the mold, improving the efficiency of injection molding production and product quality. Description of the Drawings

[0029] Figure 1 is a schematic diagram of the overall structure of Embodiment 1 of the present application.

[0030] Figure 2 is a schematic diagram of the fixed mold structure of Embodiment 1 of the present application.

[0031] Figure 3 is a schematic diagram of the pop-up seat structure of Embodiment 1 of the present application.

[0032] Figure 4 is a schematic diagram of the core-pulling pin structure of Embodiment 1 of the present application.

[0033] Figure 5 is a schematic diagram of the driving component structure of Embodiment 1 of the present application.

[0034] Figure 6 is a schematic diagram of the inclined rod structure of Embodiment 2 of the present application.

[0035] Figure 7 is along Figure 6Enlarged view at position D in [the figure].

[0036] Figure 8 It is along Figure 7 Enlarged view at position E in [the figure].

[0037] Figure 9 It is a schematic structural view of the state where the forming block ejects the product during the mold opening process of the second embodiment of the present application.

[0038] Figure 10 It is a schematic structural view of the state where the forming block slides along the "T"-shaped groove during the mold opening process of the second embodiment of the present application.

[0039] Figure 11 It is a schematic view of the position of the inclined rod in the mold opening state of the second embodiment of the present application.

[0040] Figure 12 It is a schematic structural view of the connecting member of the second embodiment of the present application.

[0041] Figure 13 It is a schematic structural view of the "T"-shaped groove of the second embodiment of the present application.

[0042] Figure 14 Schematic structural view of the ejecting block of the second embodiment of the present application.

[0043] Figure 15 It is a schematic structural view of the moving mold of the second embodiment of the present application.

[0044] Figure 16 It is a schematic structural view of the product of the second embodiment of the present application.

[0045] Figure 17 It is along Figure 16 Enlarged view at position F in [the figure].

[0046] Explanation of reference numerals: 1, fixed mold; 11, ejecting seat; 12, first spring; 13, core-pulling pin; 14, second spring; 15, limiting component; 151, limiting post; 152, slide rail; 153, limiting block; 2, moving mold; 3, inclined rod; 31, cutting edge; 32, forming block; 33, moving block; 331, limiting head; 34, "T"-shaped groove; 4, driving component; 41, sliding plate; 411, abutting plate; 412, small spring; 42, cam; 421, gear; 43, rack; 44, third spring; 45, ejecting block; 451, fourth spring; 5, connecting member; 51, guiding rod; 511, guiding groove; 53, abutting block; 6, product; 61, core-pulling hole. Detailed implementation manners

[0047] The following further describes the present application in detail in conjunction with the attached Figures 1 - 17 drawings to make the technical solution of the present application easier to understand and master.

[0048] An embodiment of the present application discloses an injection mold and a fixed mold ejecting slider-driven core-pulling pin mechanism thereof.

[0049] Referring to Figure 3 and Figure 4 In a fixed mold ejecting slider-driven core-pulling pin mechanism of this embodiment, it includes a fixed mold 1, a moving mold 2 and a core-pulling pin 13, and further includes an ejecting seat 11 and a limiting component 15; the ejecting seat 11 is slidably connected to the fixed mold 1 along direction A, and a first spring 12 is arranged between the ejecting seat 11 and the fixed mold 1 for driving the ejecting seat 11 to eject along direction A during mold opening; the core-pulling pin 13 is slidably connected to the ejecting seat 11, and a second spring 14 is arranged between the core-pulling pin 13 and the ejecting seat 11 for driving the core-pulling pin 13 to eject along direction B during mold opening; and the core-pulling pin 13 realizes the demolding action along the core direction C with the sliding of the ejecting seat 11 during mold opening. The limiting component 15 is respectively used for limiting the sliding of the ejecting seat 11 on the fixed mold 1 and the sliding of the core-pulling pin 13 on the ejecting seat 11.

[0050] Referring to Figure 3 and Figure 4 The limiting component 15 includes two limiting posts 151 and a slide rail 152. The slide rail 152 is fixedly connected to the fixed mold 1, the ejecting seat 11 is slidably connected to the slide rail 152, one end of the two limiting posts 151 in the axial direction is fixedly connected to the fixed mold 1, and the other end of the two limiting posts 151 in the axial direction passes through and is slidably connected to the ejecting seat 11. The two ends of the first spring 12 respectively abut against the limiting post 151 and the ejecting seat 11; the limiting component 15 further includes a limiting block 153. The limiting block 153 is slidably connected to the ejecting block 45, and the limiting block 153 is fixedly connected to the core-pulling pin 13. The second spring 14 is sleeved on the core-pulling pin 13, and the two ends of the second spring 14 respectively abut against the limiting block 153 and the ejecting seat 11.

[0051] Referring to Figure 3 and Figure 4 During mold opening, the ejecting seat 11 is ejected along direction A by the first spring 12. At the same time, the core-pulling pin 13 is ejected along direction B by the second spring 14. Since the core-pulling pin 13 is slidably connected to the ejecting seat 11, according to the parallelogram rule of their movements, demolding in the core-pulling direction C is realized, which is convenient for side core-pulling of the core-pulling hole 61 on the product 6 and reduces the possibility of core-pulling deformation. During the mold closing process, the moving mold 2 moves to abut against the ejecting seat 11 and pushes the ejecting seat 11 to move until it is reset. Embodiment 1:

[0052] Referring to Figure 1 and Figure 5, an injection mold, further comprising a plurality of inclined rods 3, a plurality of driving components 4, and a fixed mold ejecting slider driving core-pulling needle mechanism. The plurality of driving components 4 respectively correspond to the plurality of inclined rods 3, and the plurality of inclined rods 3 and the driving components 4 respectively correspond to a plurality of gate openings on the product 6. Each group of inclined rods 3 respectively includes two inclined rods 3. The two inclined rods 3 respectively penetrate and are slidably connected to the fixed mold 1 plate obliquely, and the sliding directions of the two inclined rods 3 are oppositely arranged. The tops of the two inclined rods 3 are respectively slidably connected with forming blocks 32 along the mold opening direction, and cutting heads 31 are respectively slidably connected to the two inclined rods 3 along a direction perpendicular to the mold opening direction. Each group of driving components 4 is respectively used to drive the corresponding two inclined rods 3 to slide variably. During the mold opening process, the driving component 4 first drives a plurality of inclined rods 3 to eject the product 6, and then accelerates to drive a plurality of inclined rods 3 until the plurality of cutting heads 31 abut against each other.

[0053] Refer to Figure 1 and Figure 5 , by driving the driving component 4 to drive a plurality of inclined rods 3 to move obliquely, first making the inclined rods 3 move slowly to eject the product 6, so that the product 6 is separated from the fixed mold 1 of the mold, and then accelerating the movement of the inclined rods 3, so that the cutting heads 31 on the plurality of inclined rods 3 simultaneously cut the gate openings on the gate product 6; enabling the mold to cut the gate while ejecting and demolding, so as to achieve the effect of slow ejection and fast cutting, reducing the possibility of damage to the product 6 during the ejection process, and at the same time making the cut of the gate flat, facilitating the demolding of the product 6, and improving the production efficiency and the quality of the product 6.

[0054] Refer to Figure 1 and Figure 5 , the driving component 4 includes a sliding plate 41, a cam 42, and a rack 43. The sliding plate 41 is slidably connected to the fixed mold 1. An abutting plate 411 is slidably connected to the sliding plate 41. A plurality of small springs 412 are fixedly connected between the abutting plate 411 and the sliding plate 41. The plurality of small springs 412 always drive the sliding plate 41 and the abutting plate 411 to slide towards opposite sides. A plurality of inclined rods 3 are respectively slidably connected to the sliding plate 41. The cam 42 is rotatably connected to the fixed mold 1. The circumferential side surface of the cam 42 abuts against the abutting plate 411. A gear 421 is coaxially and fixedly connected to the cam 42. A plurality of ejecting blocks 45 are slidably connected to the fixed mold 1. A fourth spring 451 for driving the ejecting block 45 to slide towards the moving mold 2 side is respectively arranged on the plurality of ejecting blocks 45. The two ends of the fourth spring 451 respectively abut against the fixed mold 1 and the corresponding ejecting block 45. A plurality of racks 43 are respectively fixedly connected to the plurality of ejecting blocks 45. One of the racks 43 is slidably connected to the ejecting seat 11. The plurality of racks 43 are respectively meshed with the corresponding gears 421; and a third spring 44 for driving the sliding plate 41 to reset during mold closing is respectively arranged between the plurality of sliding plates 41 and the fixed mold 1.

[0055] Refer to Figure 1 and Figure 5The sliding plate 41 is slidably connected to the fixed mold 1, providing a sliding support and guide for the diagonal rod 3. The cam 42 is rotationally connected to the fixed mold 1, with its circumferential side abutting against the sliding plate 41. Through its own rotation, the sliding plate 41 converts rotary motion into linear motion, thereby providing the required driving force for the diagonal rod 3. By utilizing the curved profile of the cam 42, the sliding plate 41 can achieve different movement speeds at different positions, thereby achieving variable speed drive for the diagonal rod 3.

[0056] Reference Figure 1 and Figure 5 During the mold opening process, the cam 42 rotates to cause the diagonal rod 3 to initially eject the product 6 at a slower speed, then accelerate until the blades 31 abut against each other, meeting the speed requirements throughout the entire operation. During the mold closing process, the third spring 44 drives the slide plate 41 back to its initial position, preparing for the next mold opening. Ensuring the accurate return of the slide plate 41 helps maintain the motion accuracy and stability of the entire drive assembly 4 and diagonal rod 3 mechanism throughout each injection cycle.

[0057] Reference Figure 9 and Figure 10 The small spring 412 is connected between the sliding plate 41 and the abutment plate 411. When the cam 42 hits the abutment plate 411, the small spring 412 can absorb and buffer part of the energy through its own elastic deformation, reducing the rigid collision between components, thereby protecting the sliding plate 41, the abutment plate 411 and other components associated therewith, extending the service life of the components and reducing the risk of component damage due to frequent impacts.

[0058] Reference Figure 5 The rack 43 is arranged on the pop-up seat 11. When the pop-up seat 11 moves, the rack 43 will move with the pop-up seat 11, and through the meshing connection between the gear 421 and the rack 43, the cam 42 coaxially fixedly connected to the gear 421 is driven to rotate, thereby realizing the conversion from the linear motion of the pop-up seat 11 to the rotation of the cam 42, and providing a power source for the subsequent movement of the inclined rod 3 and other components. The meshing transmission between the gear 421 and the rack 43 has high reliability and stability. The tooth shape matching between them can withstand a large load in the process of transmitting motion and power, and is not prone to slipping or tooth disengagement. Even in the frequent mold opening and closing cycles, the normal operation of the drive component 4 can be guaranteed. This reliability and stability helps to improve the working efficiency and service life of the entire injection mold, and reduce production interruptions and maintenance costs caused by failure of the drive component 4.

[0059] Reference Figure 2, for multiple gates on the product 6, the treatment at each gate may affect the overall quality and appearance of the product 6. Through multiple sets of corresponding inclined rods 3 and driving components 4, it can be ensured that the treatment methods and effects at each gate are consistent, thereby guaranteeing the quality consistency of the product 6 at each gate, reducing the defects of the product 6 caused by gate treatment differences, and improving the quality and molding effect of the product 6.

[0060] Referring to Figures 1 - 5 , in summary, the mold opening stage of this injection mold:

[0061] The ejection seat 11 and the core-pulling pin 13 are ejected: During mold opening, the ejection seat 11 is ejected along direction A under the action of the first spring 12, and at the same time, the core-pulling pin 13 is ejected along direction B by the second spring 14. Since the core-pulling pin 13 is slidably connected to the ejection seat 11, the movement of the two follows the parallelogram rule to achieve demolding in the core-pulling direction C, facilitating the side core-pulling of the core-pulling hole 61 on the product 6;

[0062] The inclined rod 3 ejects the product 6: The driving component 4 drives several inclined rods 3 to move obliquely. The inclined rod 3 first ejects the product 6 at a slower speed to separate the product 6 from the fixed mold 1 of the mold;

[0063] The cutting edge 31 cuts the gate: The driving component 4 accelerates the driving of several inclined rods 3 until the cutting edges 31 of several inclined rods 3 abut against each other, and at the same time cuts the gate on the gate product 6, achieving the effect of slow ejection and fast cutting. During this process, the forming block 32 with the forming surface of the product 6 on each inclined rod 3 slides towards the inclined rod 3, and the cutting edge 31 slides to be flush with the forming block 32, and the cutting edge 31 is in a suitable position for cutting operation.

[0064] Referring to Figures 1 - 5 , in summary, the mold closing stage of this injection mold:

[0065] The ejection seat 11 is reset: The moving mold 2 moves to abut against the ejection seat 11 and pushes the ejection seat 11 to move until it is reset;

[0066] The sliding plate 41 is reset: The third spring 44 drives the sliding plate 41 back to the initial position to prepare for the next mold opening operation;

[0067] The forming block 32 and the cutting edge 31 are reset: The forming block 32 slides towards the side away from the inclined rod 3, and the cutting edge 31 slides to the lower part of the forming block 32 to avoid interference with other mold components during mold closing. At the same time, the side surface of the forming block 32 close to the inclined rod 3 moves until it abuts against the abutting block 53, and the side surface of the inclined rod 3 also abuts against the abutting block 53. The third spring 44 is sleeved on the inclined rod 3 and abuts against the sliding plate 41 and the abutting block 53 at both ends respectively to limit the position and sliding of the inclined rod 3. Embodiment 2:

[0068] The difference between the second embodiment and the first embodiment is as follows: Referring to Figure 12 and Figure 13 , it further includes a connecting member 5. A forming block 32 with the forming surface of the product 6 is slidably connected to each diagonal rod 3 along the mold opening direction, and a moving block 33 is slidably connected to each diagonal rod 3 along a direction perpendicular to the mold opening direction. The cutting head 31 is detachably connected to the moving block 33, that is, the cutting head 31 can be installed on the moving block 33 by screws, which is convenient for replacing the cutting head 31 after wear. The connecting member 5 is used to connect the forming block 32 and the moving block 33. During the mold opening process, the forming block 32 slides towards the diagonal rod 3 side, and the cutting head 31 slides to be flush with the forming block 32. During the mold closing process, the forming block 32 slides towards the side away from the diagonal rod 3, and the cutting head 31 slides below the forming block 32.

[0069] Referring to Figures 7 - 11 , the connecting member 5 is used to connect the forming block 32 and the moving block 33. During the mold opening process, it ensures that the forming block 32 and the moving block 33 can move synchronously. During the mold opening process, as the forming block 32 slides, the cutting head 31 also slides to be flush with the forming block 32. At this time, the cutting head 31 is in a suitable position to perform cutting or separating operations on the product 6. After mold closing, the cutting head 31 slides below the forming block 32, so that during the mold closing process, the cutting head 31 will not interfere with other mold components; it enables the cutting head 31 to ensure the smooth demolding of the product 6 and necessary post-treatment operations during the mold opening and closing processes of the mold, and also ensures the normal mold closing and long-term stable operation of the mold, improving the injection production efficiency and the quality of the product 6.

[0070] Referring to Figure 9 and Figure 10 , the connecting member 5 is a guide rod 51. A "T"-shaped groove 34 is formed on the diagonal rod 3. One end of the guide rod 51 is slidably connected in the "T"-shaped groove 34 along the mold opening direction, the other end of the guide rod 51 is fixedly connected to the forming block 32, a guide groove 511 is formed on the guide rod 51, and the end of the guide groove 511 away from the forming block 32 is inclined. A limiting head 331 is fixedly connected to the end of the moving block 33 away from the cutting head 31, and the limiting head 331 is slidably connected in the guide groove 511. The guide rod 51 is provided with a guide groove 511 with an inclined surface, and one end of the moving block 33 is slidably connected in the guide groove 511. When the moving block 33 moves under the action of the driving assembly 4, the contact with the inclined surface in the guide groove 511 will generate a component force along the inclined surface direction on the guide rod 51, thereby pushing the guide rod 51 and the forming block connected thereto to move. At the same time, since the moving block 33 is connected to the cutting head 31, it also indirectly drives the movement of the cutting head 31, enabling the cutting head 31 to accurately slide to be flush with the forming block 32 for cutting and other operations during mold opening, and to slide below the forming block 32 to avoid interference during mold closing.

[0071] Reference Figure 7 and Figure 8 On the fixed mold 1, an abutting block 53 is fixedly connected. During the mold closing process, when the forming block 32 moves until the side surface close to the inclined rod 3 abuts against the abutting block 53, and the side surface of the inclined rod 3 abuts against the abutting block 53. The third spring 44 is sleeved on the inclined rod 3, and both ends of the third spring 44 abut against the sliding plate 41 and the abutting block 53 respectively. The side surface of the inclined rod 3 abuts against the abutting block 53, which limits the position of the inclined rod 3 on the fixed mold 1 and the sliding of the inclined rod 3, reducing the possibility of deviation in the movement of the inclined rod 3, so as to improve the accuracy and repeatability of the movement of the inclined rod 3.

[0072] Reference Figures 7 - 11 During the mold opening process:

[0073] Forming block 32: A forming block 32 with a product 6 forming surface slidably connected along the mold opening direction on each inclined rod 3 slides towards the inclined rod 3 side when the mold is opened;

[0074] Moving block 33 and cutting head 31: A moving block 33 slidably connected along the direction perpendicular to the mold opening direction on each inclined rod 3, and the cutting head 31 is detachably connected to the moving block 33. As the forming block 32 slides, the guide rod 51 will drive the moving block 33 and the cutting head 31 to move, so that the cutting head 31 slides to a position flush with the forming block 32. This is because the end of the guide groove 511 on the guide rod 51 away from the forming block 32 is inclined, and the limiting head 331 at one end of the moving block 33 is slidably connected in the guide groove 511. When the moving block 33 moves under the action of the driving assembly 4, it contacts the inclined surface in the guide groove 511 to generate a component force along the inclined surface direction, pushing the guide rod 51 and the forming block 32 to move, and indirectly driving the cutting head 31 to move to a position flush with the forming block 32. At this time, the cutting head 31 is in a suitable position to perform cutting or separating operations on the product 6;

[0075] Inclined rod 3: The position of the inclined rod 3 is relatively stable during the mold opening process, mainly providing support and guidance for the sliding of the forming block 32 and the moving block 33, and its side surface abuts against the abutting block 53 without relative movement.

[0076] Reference Figures 7 - 11 Mold closing process:

[0077] Forming block 32: Slides towards the side away from the inclined rod 3 until the side surface of the forming block 32 close to the inclined rod 3 moves and abuts against the abutting block 53 on the fixed mold 1;

[0078] Moving block 33 and cutting head 31: As the forming block 32 slides in the reverse direction, under the action of the guide rod 51, the moving block 33 drives the cutting head 31 to slide under the forming block 32. In this way, during the mold closing process, the cutting head 31 will not interfere with other mold components, ensuring the normal mold closing of the mold;

[0079] Diagonal rod 3: The side surface of the diagonal rod 3 abuts against the abutting block 53. The third spring 44 is sleeved on the diagonal rod 3 and abuts against the sliding plate 41 and the abutting block 53 at both ends respectively. During the mold closing process, the diagonal rod 3 is limited by the abutting block 53, and its position is relatively stable. The third spring 44 plays a role in buffering and resetting, and at the same time reduces the possibility of deviation in the movement of the diagonal rod 3, improving the accuracy and repeatability of the movement of the diagonal rod 3.

[0080] Of course, the above are only typical examples of this application. In addition, this application can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by this application.

Claims

1. An injection mold, characterized in that: It includes several inclined rods (3), a driving component (4), and a fixed mold ejecting slider driving core-pulling pin mechanism. The fixed mold ejecting slider driving core-pulling pin mechanism includes a moving mold (2), a fixed mold (1), a core-pulling pin (13), an ejecting seat (11), and a limiting component (15); The ejecting seat (11) is slidably connected to the fixed mold (1), and a first spring (12) for driving the ejecting seat (11) to eject along direction A during mold opening is arranged between the ejecting seat (11) and the fixed mold (1); The core-pulling pin (13) is slidably connected to the ejecting seat (11), and a second spring (14) for driving the core-pulling pin (13) to eject along direction B during mold opening is arranged between the core-pulling pin (13) and the ejecting seat (11). Moreover, during mold opening, the core-pulling pin (13) realizes the demolding action along the core direction C as the ejecting seat (11) slides; The limiting component (15) is respectively used for limiting the sliding of the ejecting seat (11) on the fixed mold (1) and the sliding of the core-pulling pin (13) on the ejecting seat (11); Several of the inclined rods (3) are respectively arranged obliquely and slidably connected to the fixed mold (1) plate. Blade heads (31) are respectively detachably connected to several of the inclined rods (3). The driving component (4) is used for driving the variable-speed sliding of several inclined rods (3). During the mold opening process, the driving component (4) first drives several inclined rods (3) to eject the product (6), and then accelerates to drive several inclined rods (3) until the blade heads (31) abut against each other; The driving component (4) includes a sliding plate (41) and a cam (42). The sliding plate (41) is slidably connected to the fixed mold (1). Several of the inclined rods (3) are respectively slidably connected to the sliding plate (41). The cam (42) is rotatably connected to the fixed mold (1). The circumferential side surface of the cam (42) abuts against the sliding plate (41). Moreover, a third spring (44) for driving the sliding plate (41) to reset during mold closing is arranged between the sliding plate (41) and the fixed mold (1); It further includes a connecting piece (5). A forming block (32) is slidably connected to the inclined rod (3) along the mold opening direction. A moving block (33) is slidably connected to the inclined rod (3). The blade head (31) is detachably connected to the moving block (33). The connecting piece (5) is used for connecting the forming block (32) and the moving block (33). During the mold opening process, the forming block (32) slides towards the inclined rod (3) side, and the blade head (31) slides to be flush with the forming block (32). During the mold closing process, the forming block (32) slides towards the side away from the inclined rod (3), and the blade head (31) slides below the forming block (32).

2. An injection mold according to claim 1, characterized in that: The driving component (4) further includes a rack (43). A gear (421) is coaxially and fixedly connected to the cam (42). The rack (43) is arranged on the ejecting seat (11). The rack (43) is meshed and connected with the gear (421).

3. An injection mold according to claim 2, characterized in that: The diagonal rods (3) and the drive components (4) are respectively provided with multiple groups, and the multiple groups of diagonal rods (3) and drive components (4) respectively correspond to multiple gates on the product (6). A plurality of ejector blocks (45) are slidably connected to the fixed mold (1), and multiple groups of racks (43) are respectively fixedly connected to the multiple ejector blocks (45), and the multiple groups of racks (43) are respectively meshed and connected with corresponding gears (421).

4. An injection mold according to claim 1, characterized in that: The connecting member (5) is a guide rod (51), and a "T" - shaped groove (34) is provided on the diagonal rod (3); one end of the guide rod (51) is slidably connected in the "T" - shaped groove (34) along the mold - opening direction, the other end of the guide rod (51) is fixedly connected to the forming block (32), a guide groove (511) is provided on the guide rod (51), and one end of the guide groove (511) far from the forming block (32) is inclined, and one end of the moving block (33) is slidably connected in the guide groove (511).

5. An injection mold according to claim 4, characterized in that: A contact block (53) is provided on the fixed mold (1). During the mold - closing process, the side surface of the forming block (32) close to the diagonal rod (3) moves until it abuts against the contact block (53), and the side surface of the diagonal rod (3) also abuts against the contact block (53).

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