Inclined sliding block core-pulling structure

Abstract

The invention relates to the technical field of die-casting dies, in particular to an inclined sliding block core-pulling structure which comprises a die body, a sliding groove located in a rear die plate of the die body and a core-pulling sliding block, the core-pulling sliding block is installed in the sliding groove in a sliding mode, and a roller is rotatably installed on the side wall of the sliding groove. The roller is in rolling contact with the side face of the core-pulling sliding block so as to reduce friction resistance between the core-pulling sliding block and the sliding groove, an auxiliary driving piece is installed between the rear mold plate and the core-pulling sliding block, and the auxiliary driving piece elastically pushes the core-pulling sliding block to be disengaged in the direction of the sliding groove. And the elastic driving force direction of the auxiliary driving piece is consistent with the core-pulling direction of the core-pulling sliding block. Sliding friction between the core-pulling sliding block and the sliding groove is converted into rolling friction through the roller, friction resistance in the core-pulling process is reduced, the auxiliary driving piece provides extra thrust in the mold opening process, and the problem that effective component force of mold opening force is insufficient due to the high inclination angle is solved.

Description

[0001] This application relates to the technical field of die-casting molds, and in particular to a slanted slider core-pulling structure. Background Technology

[0002] When molding products with side holes or side recesses, existing molds often encounter problems because the molding direction of these structures is inconsistent with the conventional mold opening direction. If demolding is performed directly in the mold opening direction, the molding components of the mold will interfere with the side structure of the product, resulting in the product being unable to be removed smoothly or structural damage. A lateral sliding block core-pulling structure is needed to pull the sliding block of the side structure laterally to achieve smooth demolding. The lateral sliding block core-pulling structure can convert the mold opening force or ejection force into lateral movement, thereby completing the lateral core-pulling action. It has been widely used in the injection molding production of automotive parts.

[0003] Specifically, in the injection molding production of filter holders for automotive air intakes, a high-inclination slant slider core-pulling structure is required to adapt to the complex structural requirements of the filter holder and avoid interference during product ejection. The high inclination results in a large angle between the movement direction of the slant slider and the mold opening direction, which significantly reduces the effective component of the mold opening force or ejection force converted into the lateral core-pulling force. It also increases the frictional resistance between the slant slider and the mold groove, leading to an unsmooth core-pulling process, or even jamming or damage to the slant slider.

[0004] Therefore, a slanted slider core-pulling structure is needed to solve the problem of the slanted slider core-pulling process being unsmooth or even damaging the slanted slider when the slider is highly inclined. Summary of the Invention

[0005] In order to convert the sliding friction between the inclined slider and the mold groove into rolling friction, and to provide additional power for the inclined slider core pulling, so as to ensure that the inclined slider can still complete the lateral core pulling action smoothly and efficiently at a high tilt angle, this application provides an inclined slider core pulling structure.

[0006] This application provides a slanted slider core-pulling structure, which adopts the following technical solution: A slanted slider core-pulling structure includes a mold body, a groove located on the rear template of the mold body, and a core-pulling slider. The core-pulling slider is slidably installed in the groove. A roller is rotatably installed on the side wall of the groove. The roller makes rolling contact with the side of the core-pulling slider to reduce the frictional resistance between the core-pulling slider and the groove. An auxiliary driving component is installed between the rear template and the core-pulling slider. The auxiliary driving component elastically pushes the core-pulling slider to disengage along the groove direction. The direction of the elastic driving force of the auxiliary driving component is consistent with the core-pulling direction of the core-pulling slider.

[0007] By adopting the above technical solution, the roller transforms the sliding friction between the core-pulling slider and the groove into rolling friction, reducing the frictional resistance during the core-pulling process. This prevents the core-pulling slider with a large inclination angle from getting stuck or damaged due to excessive frictional resistance. At the same time, the auxiliary drive provides additional thrust during the mold opening process, and the direction of the thrust is consistent with the core-pulling direction. This compensates for the problem of insufficient effective force component of the mold opening force caused by the high inclination angle, further ensuring the smoothness and reliability of the core-pulling slider's movement. This allows the core-pulling slider to quickly detach from the product's side wall structure in the early stage of product demolding.

[0008] Optionally, the mold body is slidably mounted with a slider seat, which is slidably engaged with the bottom end of the core-pulling slider. The slider seat is provided with an inclined groove for guiding the movement of the core-pulling slider. The slider seat moves down synchronously when the core-pulling slider pulls the core to cooperate with the core-pulling slider to disengage from the groove.

[0009] By adopting the above technical solution, during the core pulling process, the slider seat moves down synchronously. The inclined groove on the slider seat guides and supports the bottom of the core pulling slider, effectively distributing the lateral pressure of the core pulling slider during the high-inclination core pulling process, avoiding the core pulling slider from jamming or uneven wear due to excessive force on one side, improving the motion stability of the core pulling slider, and extending the service life of the core pulling slider.

[0010] Optionally, a mounting base is detachably fixed on the rear template, the roller is rotatably mounted in the mounting base, a locking member is provided between the mounting base and the rear template, the locking member applies a pre-tightening force in a direction perpendicular to the side of the core-pulling slider, and the mounting base adjusts the contact pressure between the roller and the core-pulling slider by the magnitude of the pre-tightening force of the locking member.

[0011] By adopting the above technical solution and adjusting the preload of the locking component, the contact pressure between the roller and the core-pulling slider can be precisely controlled. This avoids excessive pressure that could obstruct the roller's rotation and affect the rolling effect between the core-pulling slider and the roller, or insufficient pressure that could result in insufficient effective contact area between the roller and the core-pulling slider, causing the roller to spin idly. By adjusting the preload of the locking component, a suitable contact pressure can be maintained between the roller and the core-pulling slider, thereby ensuring the stability and reliability of the rolling contact.

[0012] Optionally, the mounting base is provided with an oil storage chamber containing lubricating oil, the roller is located in the oil storage chamber and part of the roller surface is located outside the mounting base, and the lubricating oil in the oil storage chamber continuously enters the contact area between the core-pulling slider and the slide groove through the rotation of the roller.

[0013] By adopting the above technical solution, the roller carries out the lubricating oil in the oil storage chamber during rotation. The rotation of the roller continuously coats the lubricating oil onto the core-pulling slider. As the core-pulling slider moves, the lubricating oil is carried into the contact area between the core-pulling slider and the slide groove. As the core-pulling slider pulls the core, the lubricating oil is continuously carried into the contact surface between the slide groove and the core-pulling slider, forming a continuous lubrication layer. This effectively reduces the coefficient of friction between the two, further improves the smoothness of the core-pulling process of the core-pulling slider, and reduces wear during the core-pulling process.

[0014] Optionally, the inner wall of the oil storage cavity gradually narrows outward along the contact area between the roller and the core-pulling slider. The narrowing structure is used to guide the lubricating oil to flow in a directional manner towards the contact area between the roller and the core-pulling slider.

[0015] By adopting the above technical solution, the constriction structure causes the lubricating oil in the oil storage cavity to flow in a directional direction toward the contact area between the roller and the core-pulling slider, ensuring that the lubricating oil is concentratedly supplied to the roller, improving the utilization efficiency of the lubricating oil, and ensuring continuous and sufficient lubrication in the contact area between the roller and the core-pulling slider. At the same time, under the centrifugal force generated by the rotation of the roller, the constriction structure further enhances the directional delivery effect of the lubricating oil, so that the oil film is evenly distributed on the contact surface between the core-pulling slider and the groove.

[0016] Optionally, the mounting base is provided with an oil replenishment structure communicating with the oil storage chamber. The oil replenishment structure includes an oil replenishment cylinder and a rotating shaft that are interconnected. The rotating shaft is rotatably mounted on the mounting base. The oil replenishment cylinder is integrally formed with the rotating shaft and rotates synchronously with the rotating shaft. The oil replenishment cylinder and the roller are arranged sequentially along the extraction direction of the core-pulling slider. The outer peripheral wall of the oil replenishment cylinder and the roller abut against the side of the core-pulling slider.

[0017] By adopting the above technical solution, during the movement of the core-pulling slider, the oil replenishing cylinder rotates with the movement of the core-pulling slider, driving the rotating shaft to rotate synchronously, so that the lubricating oil in the oil replenishing cylinder continuously enters the oil storage chamber, realizing automatic replenishment of lubricating oil and ensuring a stable oil volume in the oil storage chamber. The oil replenishing cylinder is rotatably mounted on the mounting base, and the oil replenishing cylinder and the roller together abut against the side of the core-pulling slider, forming a double support point structure, which effectively disperses the lateral force during the movement of the core-pulling slider, prevents deviation or shaking caused by single-point force, and improves the stability of the core-pulling slider movement.

[0018] Optionally, the mounting base is provided with a vertical oil replenishment channel communicating with the oil storage cavity. One end of the rotating shaft extends into the vertical oil replenishment channel and communicates with the oil replenishment channel. The rotating shaft is positioned above the oil storage cavity so that the lubricating oil in the rotating shaft enters the oil storage cavity under the action of gravity.

[0019] By adopting the above technical solution, the rotating shaft is located above the oil storage chamber, and the oil replenishing cylinder is connected to the rotating shaft. Under the action of gravity, the lubricating oil flows naturally from the rotating shaft into the oil storage chamber through the vertical oil replenishing channel, thereby realizing the automatic replenishment of lubricating oil and keeping the oil volume in the oil storage chamber sufficient.

[0020] Optionally, the core-pulling slider has a through internal oil channel. The internal oil channel slopes downward from the inside to the outside along the core-pulling slider's pulling direction. The inlet end of the internal oil channel is located in the contact area between the core-pulling slider and the roller, and the outlet end of the internal oil channel is located at the contact surface between the bottom end of the core-pulling slider and the slider seat.

[0021] By adopting the above technical solution, the internal oil channel guides the excess lubricating oil in the contact area between the roller and the core-pulling slider to the contact surface between the bottom of the core-pulling slider and the slider seat. The inclined design of the internal oil channel allows the lubricating oil to flow smoothly to the contact surface of the slider seat under gravity, realizing the secondary use of lubricating oil, reducing lubricating oil waste, and further improving the lubrication effect of the contact surface between the bottom of the core-pulling slider and the slider seat, further improving the smoothness of core pulling by the core-pulling slider, and also reducing the wear of the core-pulling slider.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The roller converts the sliding friction between the core-pulling slider and the groove into rolling friction, reducing the frictional resistance during the core-pulling process and preventing the core-pulling slider with a large tilt angle from getting stuck or damaged due to excessive frictional resistance. At the same time, the auxiliary drive provides additional thrust during the mold opening process, and the direction of the thrust is consistent with the core-pulling direction, which compensates for the problem of insufficient effective force component of the mold opening force caused by the high tilt angle, further ensuring the smoothness and reliability of the core-pulling slider movement, so that the core-pulling slider can quickly detach from the product side wall structure in the early stage of product demolding. 2. Adjusting the preload of the locking element can precisely control the contact pressure between the roller and the core-pulling slider, avoiding excessive pressure that would obstruct the roller's rotation and affect the rolling effect between the core-pulling slider and the roller, or insufficient pressure that would result in insufficient effective contact area between the roller and the core-pulling slider, causing the roller to spin idly. By adjusting the preload of the locking element, it can be ensured that the roller and the core-pulling slider maintain a moderate contact pressure, thereby ensuring the stability and reliability of the rolling contact. 3. The oil replenishing cylinder rotates as the core-pulling slider moves, causing the rotating shaft to rotate synchronously. This allows the lubricating oil in the oil replenishing cylinder to continuously enter the oil storage chamber, achieving automatic replenishment of the lubricating oil and ensuring a stable oil level in the oil storage chamber. The oil replenishing cylinder is rotatably mounted on the mounting base, and the oil replenishing cylinder and the roller together abut against the side of the core-pulling slider, forming a double support point structure. This effectively disperses the lateral force during the movement of the core-pulling slider, preventing deviation or shaking caused by single-point force, and improving the stability of the core-pulling slider's movement. Attached Figure Description

[0023] Figure 1 This is a cross-sectional view of an embodiment of this application, used to show the overall structure of the mold body; Figure 2 for Figure 1 An enlarged diagram of section A in the middle is used to show the setting position of the core-pulling slider; Figure 3 This is a partial structural diagram of an embodiment of this application. Figure 1 This is used to show the location of the rollers and the oil replenishment structure; Figure 4 This is a partial structural diagram of an embodiment of this application. Figure 2 This is used to demonstrate the specific structure of the mounting base; Figure 5 for Figure 4 The enlarged schematic diagram of section B in the middle is used to show the specific structure of the oil replenishment structure.

[0024] Reference numerals: 1. Mold body; 111. Front template; 1111. Sliding block; 121. Rear template; 122. Slide groove; 123. First mounting hole; 124. Mounting block; 125. Rear mold core; 131. Rear mold support plate; 132. Slider seat; 133. Inclined groove; 2. Core-pulling slider; 211. Second mounting hole; 221. Internal oil passage; 3. Product; 4. Auxiliary drive component; 5. Mounting base; 511. Roller; 512. Oil storage cavity; 5121. Opening; 521. Oil replenishment structure; 522. Oil replenishment cylinder; 523. Rotating shaft; 5231. Oil outlet hole; 531. Vertical oil replenishment channel. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0026] Example: A type of inclined slider core-pulling structure, reference Figure 1 and Figure 2The mold includes a mold body 1, a slide groove 122, and a core-pulling slider 2. The mold body 1 includes a front template 111 and a rear template 121. The slide groove 122 is formed on the rear template 121. The core-pulling slider 2 is slidably installed in the slide groove 122. The end of the core-pulling slider 2 is used to form the lateral contour of the cavity of the product 3. When the product 3 is demolded, the core-pulling slider 2 slides outward along the slide groove 122 to achieve a lateral core-pulling action. A roller 511 is rotatably installed on the inner wall of the slide groove 122. The circumference of the roller 511 slightly protrudes from the inner wall of the slide groove 122 and keeps in contact with the side of the core-pulling slider 2. When the core-pulling slider 2 moves, the roller... 511 then rolls, converting sliding friction into rolling friction, reducing frictional resistance. An auxiliary drive component 4 is installed between the rear template 121 and the core-pulling slider 2. Under the action of the auxiliary drive component 4, the core-pulling slider 2 is subjected to elastic thrust during demolding. The direction of the elastic thrust is consistent with the sliding direction of the core-pulling slider 2, ensuring that the core-pulling slider 2 moves smoothly and steadily during demolding, reducing the frictional force when the core-pulling slider 2 pulls the core, and increasing the driving force when the core-pulling slider 2 pulls the core. The two work together to significantly improve the motion stability and response speed of the core-pulling slider 2, making the core-pulling process more efficient and reliable.

[0027] refer to Figure 1 and Figure 2 A sliding block 1111 is slidably mounted on the front template 111. The sliding block 1111 is used to form the cavity of the product 3. When the product 3 is demolded, the sliding block 1111 slides first to facilitate the smooth demolding of the product 3. A first mounting hole 123 is provided on the rear mold core 125 of the rear template 121. A second mounting hole 211 is provided at the corresponding position of the core-pulling slider 2. One end of the auxiliary drive component 4 is fixedly installed in the first mounting hole 123, and the other end extends into the second mounting hole 211 and elastically abuts against the core-pulling slider 2. In this embodiment, the auxiliary drive component 4 includes a spring. When the mold is closed, the auxiliary drive component 4 is in a compressed state to provide preload force for the core-pulling slider 2. When the mold is opened, the core-pulling slider 2 moves down under the action of gravity. The auxiliary drive component 4 releases elastic potential energy and pushes the core-pulling slider 2 to move downward along the slide groove 122 to realize the automatic core-pulling action.

[0028] refer to Figure 2 and Figure 3 A mounting base 5 is detachably fixed on the rear template 121. The roller 511 is rotatably installed in the mounting base 5. A locking element is threaded on the rear template 121. In this embodiment, the locking element is a bolt. One end of the locking element abuts against the mounting base 5. By tightening the locking element, pressure can be applied to the mounting base 5 in a direction perpendicular to the side of the core-pulling slider 2, thereby adjusting the contact preload between the roller 511 and the core-pulling slider 2, ensuring that the roller 511 always fits against the side wall of the core-pulling slider 2.

[0029] refer to Figure 2 and Figure 3The mounting base 5 has an oil storage chamber 512 for storing lubricating oil, and the roller 511 is located inside the oil storage chamber 512, combined with... Figure 4 The oil storage chamber 512 is provided with an opening 5121. A portion of the roller 511 is exposed outside the oil storage chamber 512 through the opening 5121. The exposed area is in contact with the side of the core-pulling slider 2. When the roller 511 rolls, the roller 511 continuously carries out lubricating oil from the oil storage chamber 512 to achieve lubrication of the contact surface, effectively reduce wear and extend the service life of the roller 511 and the core-pulling slider 2.

[0030] refer to Figure 3 and Figure 4 The inner wall of the oil storage chamber 512 gradually narrows along the direction close to the contact area between the roller 511 and the core-pulling slider 2, forming a constricted structure. During the rotation of the roller 511, the constricted structure can guide the lubricating oil to concentrate in the contact area, improve lubrication efficiency, and at the same time prevent excessive loss of lubricating oil, ensuring long-term stable oil supply.

[0031] refer to Figure 4 and Figure 5 The mounting base 5 is also equipped with an oil replenishment structure 521, which includes an integrally formed oil replenishment cylinder 522 and a rotating shaft 523. The oil replenishment cylinder 522 is connected to the oil storage chamber 512. The oil replenishment cylinder 522 is rotatably mounted on the mounting base 5 via the rotating shaft 523. Figure 3 A portion of the oil filler cylinder 522 is located within the chute 122, combined with... Figure 3 When the core-pulling slider 2 slides, it contacts the oil-filling cylinder 522 and drives the oil-filling cylinder 522 to rotate around the rotating shaft 523. The oil-filling cylinder 522 and the roller 511 are distributed sequentially along the sliding direction of the core-pulling slider 2. During the sliding process, the core-pulling slider 2 passes through the oil-filling cylinder 522 and the roller 511 in sequence, which provides double-point support for the core-pulling slider 2 and evenly distributes the force, effectively suppressing the sway of the core-pulling slider 2 during the movement.

[0032] refer to Figure 4 and Figure 5 The mounting base 5 is also provided with a vertical oil replenishment channel 531. One end of the rotating shaft 523 extends into the vertical oil replenishment channel 531. An oil outlet hole 5231 is provided on the rotating shaft 523. As the core-pulling slider 2 drives the oil replenishment cylinder 522 to rotate, the rotating shaft 523 rotates accordingly. The oil outlet hole 5231 periodically aligns with the vertical oil replenishment channel 531. Under the action of gravity, the lubricating oil flows into the oil storage chamber 512 through the vertical oil replenishment channel 531, realizing the automatic oil replenishment function, ensuring that the lubricating oil in the oil storage chamber 512 is continuously replenished, and also avoiding excessive lubricating oil in the oil replenishment cylinder 522 from entering the oil storage chamber 512, which would lead to over-lubrication or leakage, and keeping the oil quantity in the oil storage chamber 512 stable.

[0033] refer to Figure 1 and Figure 2The mold body 1 also includes a rear mold support plate 131, which is adjacent to the rear mold plate 121. A slider seat 132 is installed on the rear mold support plate 131, and the slider seat 132 is fastened to the rear mold support plate 131 by bolts. The bottom end of the core-pulling slider 2 is slidably engaged with the top end of the slider seat 132. When the core-pulling slider 2 pulls the core, the rear mold support plate 131 drives the slider seat 132 to move down synchronously. In coordination with the core-pulling action of the core-pulling slider 2, the slider seat 132 is provided with a sloping groove 133, which is engaged with the bottom sloping surface of the core-pulling slider 2. During the core-pulling process of the core-pulling slider 2, the sloping groove 133 guides the core-pulling slider 2 to move smoothly along a predetermined trajectory.

[0034] refer to Figure 2 and Figure 3 The core-pulling slider 2 has an internal oil passage 221. One end of the internal oil passage 221 connects to the contact area between the side of the core-pulling slider 2 and the roller 511, and the other end extends to the contact surface between the bottom surface of the core-pulling slider 2 and the slider seat 132, forming a continuous oil passage. After the lubricating oil is carried out by the roller 511 and seeps into the contact area, some of the lubricating oil flows along the internal oil passage 221 to the bottom surface of the core-pulling slider 2, continuously lubricating the contact surface between the core-pulling slider 2 and the slider seat 132, reducing the frictional resistance during the movement of the core-pulling slider 2, and also realizing the efficient recycling of the lubricating oil.

[0035] refer to Figure 1 and Figure 3 Two sets of core-pulling sliders 2 are provided, symmetrically arranged on both sides of the mold body 1. The two sets of core-pulling sliders 2 are used for the simultaneous demolding of two sets of products 3. Two slider seats 132 are also provided, which are installed in conjunction with the core-pulling sliders 2 on both sides. Both slider seats 132 are fastened to the rear mold support plate 131 by bolts. An installation block 124 is fixedly installed on the rear template 121. The installation block 124 abuts between the two slider seats 132 to limit the relative position of the two slider seats 132 and ensure that the two slider seats 132 remain symmetrical and stable when the rear mold support plate 131 moves synchronously.

[0036] The implementation principle of this application embodiment is as follows: During the mold opening process, the front mold plate 111 and the rear mold plate 121 move upward, and the rear mold support plate 131 moves downward synchronously. The moving speed of the front mold plate 111 is greater than the moving speed of the rear mold support plate 131, so that the distance between the front mold plate 111 and the rear mold plate 121 gradually increases, making it easier for the product 3 to be smoothly removed from the rear mold plate 121. The rear mold support plate 131 drives the slider seat 132 to move downward synchronously. The core-pulling slider 2 slides down along the inclined groove 133 of the slider seat 132 under gravity. The auxiliary drive component 4 pushes the core-pulling slider 2 downward. The side of the core-pulling slider 2 rolls into contact with the oil filling cylinder 522 and the roller 511. This reduces the movement resistance of the core-pulling slider 2. At the same time, the rotation of the roller 511 causes the oil outlet 5231 of the rotating shaft 523 to periodically align with the vertical oil replenishment channel 531. Under the action of gravity, the lubricating oil continuously drips into the oil storage chamber 512. The rotation of the roller 511 causes the lubricating oil to be evenly distributed on the surface of the roller 511. As the core-pulling slider 2 moves down, the lubricating oil on the surface of the roller 511 is carried into the side contact area of ​​the core-pulling slider 2 to achieve continuous lubrication. At the same time, some of the lubricating oil flows through the internal oil channel 221 to the contact surface between the bottom surface of the core-pulling slider 2 and the slider seat 132, further reducing the frictional resistance, accelerating the movement speed of the core-pulling slider 2, and ensuring that the core-pulling action is smooth and stable.

[0037] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A slanted slider core-pulling structure, comprising a mold body (1), a groove (122) located on a rear template (121) of the mold body (1), and a core-pulling slider (2), wherein the core-pulling slider (2) is slidably installed in the groove (122), characterized in that: A roller (511) is rotatably mounted on the side wall of the slide groove (122). The roller (511) makes rolling contact with the side of the core-pulling slider (2) to reduce the frictional resistance between the core-pulling slider (2) and the slide groove (122). An auxiliary drive component (4) is installed between the rear template (121) and the core-pulling slider (2). The auxiliary drive component (4) elastically pushes the core-pulling slider (2) to disengage along the slide groove (122). The direction of the elastic driving force of the auxiliary drive component (4) is consistent with the core-pulling direction of the core-pulling slider (2).

2. The inclined slider core-pulling structure according to claim 1, characterized in that: The mold body (1) is slidably mounted with a slider seat (132), which is slidably engaged with the bottom end of the core-pulling slider (2). The slider seat (132) is provided with an inclined groove (133) for guiding the movement of the core-pulling slider (2). The slider seat (132) moves down synchronously when the core-pulling slider (2) pulls the core to cooperate with the core-pulling slider (2) to disengage from the groove (122).

3. The inclined slider core-pulling structure according to claim 2, characterized in that: A mounting base (5) is detachably fixed on the rear template (121). The roller (511) is rotatably installed in the mounting base (5). A locking member is provided between the mounting base (5) and the rear template (121). The locking member applies a pre-tightening force in a direction perpendicular to the side of the core-pulling slider (2). The mounting base (5) adjusts the contact pressure between the roller (511) and the core-pulling slider (2) by adjusting the magnitude of the pre-tightening force of the locking member.

4. The inclined slider core-pulling structure according to claim 3, characterized in that: The mounting base (5) is provided with an oil storage chamber (512) containing lubricating oil. The roller (511) is located inside the oil storage chamber (512) and part of the roller (511) is located outside the mounting base (5). The lubricating oil in the oil storage chamber (512) continuously enters the contact area between the core-pulling slider (2) and the slide groove (122) through the rotation of the roller (511).

5. The inclined slider core-pulling structure according to claim 4, characterized in that: The inner wall of the oil storage chamber (512) gradually narrows outward along the contact area between the roller (511) and the core-pulling slider (2). The narrowing structure is used to guide the lubricating oil to flow in a directional manner to the contact area between the roller (511) and the core-pulling slider (2).

6. The inclined slider core-pulling structure according to claim 4, characterized in that: The mounting base (5) is provided with an oil replenishment structure (521) communicating with the oil storage chamber (512). The oil replenishment structure (521) includes an oil replenishment cylinder (522) and a rotating shaft (523) that are interconnected. The rotating shaft (523) is rotatably mounted on the mounting base (5). The oil replenishment cylinder (522) and the rotating shaft (523) are integrally formed and rotate synchronously with the rotating shaft (523). The oil replenishment cylinder (522) and the roller (511) are arranged sequentially along the pulling direction of the core-pulling slider (2). The outer peripheral wall of the oil replenishment cylinder (522) and the roller (511) abut against the side of the core-pulling slider (2).

7. The inclined slider core-pulling structure according to claim 6, characterized in that: The mounting base (5) is provided with a vertical oil replenishment channel (531) that communicates with the oil storage cavity (512). One end of the rotating shaft (523) extends into the vertical oil replenishment channel (531) and communicates with the oil replenishment channel. The rotating shaft (523) is positioned above the oil storage cavity (512) so that the lubricating oil in the rotating shaft (523) enters the oil storage cavity (512) under the action of gravity.

8. The inclined slider core-pulling structure according to claim 6, characterized in that: The core-pulling slider (2) is provided with a through internal oil channel (221). The internal oil channel (221) gradually slopes downward from the inside to the outside along the pulling direction of the core-pulling slider (2). The inlet end of the internal oil channel (221) is located in the contact area between the core-pulling slider (2) and the roller (511). The outlet end of the internal oil channel (221) is located at the contact surface between the bottom end of the core-pulling slider (2) and the slider seat (132).

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