A trimming mechanism for simultaneously performing edge trimming and side trimming

Abstract

The utility model is suitable for the technical field of trimming mechanism, provides a trimming mechanism that carries out simultaneously to the right and side, including equipment main part, equipment main part includes pressing material core and fixed mould, and pressing material core has upper layer runner inlet, lower layer runner inlet and cavity, trimming structure, trimming structure includes right trimming insert, side trimming insert, side trimming lower mould blade mouth insert and support block, the upper end surface of support block is close to upper layer runner inlet, and the blade -like end part of side trimming lower mould blade mouth insert is close to lower layer runner inlet, and the blade -like lower end part of right trimming insert is close to upper layer runner inlet, in the utility model, side trimming insert end part and side trimming lower mould blade mouth insert end part contact, and the waste formed at lower layer runner inlet of casting body is cut off, and pressing material core moves down, and right trimming insert moves down, and the waste of casting body close to upper layer runner inlet is cut off, and finally the waste of casting is cut off by right trimming insert and side trimming insert, and trimming efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of trimming mechanisms, and in particular relates to a trimming mechanism that performs both front and side trimming simultaneously. Background Technology

[0002] In high-pressure casting, molten metal needs to fill the cavity at high speed. Since a single-layer gating system may cause uneven flow of molten metal, resulting in turbulence or air entrapment, a double-layer gating system is used to allow molten metal to enter the cavity simultaneously or in an orderly manner from different heights. This reduces flow resistance, splashes, and oxide inclusions, and improves the stability of filling. In addition, since the gating system is the channel for molten metal to enter the cavity, the gating part will adhere to the surface of the casting after it is formed. If it is not removed, it will affect the overall appearance of the casting. After removing the gating system, the surface of the casting is smoother and more even. Normally, when trimming the lower runner, the casting body tends to move downwards with the gate or bend due to the lack of support when the trimming force is applied downwards. Therefore, it is necessary to add support to the casting to prevent cracking during trimming. In the prior art, the upper and lower runners may overlap or be close to each other in space. If they are trimmed at the same time, the punch or support structure of the trimming die is prone to interference, which affects the operation accuracy and safety. Therefore, a trimming mechanism that can perform front trimming and side trimming at the same time is needed to solve the above problems. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide a trimming mechanism that performs both front and side trimming simultaneously, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A trimming mechanism that performs both front and side trimming simultaneously includes: The main body of the equipment includes a pressing core and a fixed mold. The pressing core is slidably mounted on the fixed mold at a predetermined distance above it. One side of the pressing core has an upper sprue inlet and a lower sprue inlet. The upper sprue inlet is located at a predetermined distance above the lower sprue inlet. The pressing core forms a cavity on the side closest to the fixed mold. Both the upper sprue inlet and the lower sprue inlet are connected to the cavity. The trimming structure includes a front trimming insert, a side trimming insert, a side trimming lower die cutting edge insert, and a support block. The support block is mounted on the upper surface of the side trimming insert, with the upper surface of the support block close to the upper runner inlet. The lower end of the front trimming insert is blade-shaped. The side trimming insert and the side trimming lower die cutting edge insert are both blade-shaped at their adjacent ends and are at the same horizontal height. The side trimming lower die cutting edge insert is mounted on the side wall of the fixed mold, with the blade-shaped end of the side trimming lower die cutting edge insert close to the lower runner inlet. The front trimming insert is mounted on the side of the pressure core, with the blade-shaped lower end of the front trimming insert close to the upper runner inlet. The side trimming insert can be slidably positioned on one side of the pressure core, either closer to or further away from it. In a further technical solution, the trimming structure also includes a slider, which is slidably disposed on the side of the pressure core on which the front trimming insert is mounted, and the side trimming insert is mounted on the upper end of the slider.

[0005] In a further technical solution, the trimming structure also includes a hydraulic cylinder, a connecting block, and a coupling. The output shaft of the hydraulic cylinder is connected to the connecting block, and the end of the connecting block away from the hydraulic cylinder is connected to the coupling. The end of the coupling away from the connecting block is connected to the slider. The hydraulic cylinder, the connecting block, and the coupling are installed on the side of the fixed mold where the side trimming lower die cutting edge insert is installed.

[0006] In a further technical solution, the main body of the equipment also includes a slider guide plate, the lower end face of the slider is slidably disposed on the slider guide plate, and the slider guide plate is fixedly installed on the side of the fixed mold where the side trimming lower mold cutting edge insert is installed.

[0007] In a further technical solution, the main body of the equipment also includes a pressing core guide plate, and a pair of pressing core guide plates are provided, with the pair of pressing core guide plates respectively fixedly installed on the opposite side walls of the pressing core.

[0008] In a further technical solution, the upper surface of the slider on which the side trimming insert is mounted is set as an inclined surface.

[0009] Compared with the prior art, the beneficial effects of this utility model are: This invention features a trimming structure comprising a front trimming insert, a side trimming insert, a side trimming lower die cutting edge insert, and a support block. The support block is mounted on the upper surface of the side trimming insert, with its upper surface close to the upper runner inlet. The side trimming lower die cutting edge insert is mounted on the side wall of the fixed mold, with its blade-shaped end close to the lower runner inlet, and the blade-shaped lower end of the front trimming insert close to the upper runner inlet. When trimming is required, the side trimming insert and the support block slide towards the fixed mold until the blade of the side trimming insert... The blade-shaped end contacts the blade-shaped end of the side trimming lower die cutting edge insert, thereby removing the waste material formed at the lower gating inlet of the casting; the driving device drives the pressure core to move downward toward the fixed mold, thereby driving the front trimming insert on one side wall of the pressure core to move downward simultaneously, so that the front trimming insert removes the waste material of the casting that extends out of the pressure core and has a predetermined length of upper gating inlet; in this way, the waste material formed at the upper gating inlet and the lower gating inlet of the casting is removed by the front trimming insert and the side trimming insert at the same time without interference, and the trimming efficiency is improved; This invention comprises a slider, a hydraulic cylinder, a connecting block, and a coupling. The slider is slidably mounted on the side of the pressure core where the front trimming insert is installed, and the side trimming insert is mounted on the upper end of the slider. The output shaft of the hydraulic cylinder is connected to the connecting block, and the end of the connecting block away from the hydraulic cylinder is connected to the coupling. The end of the coupling away from the connecting block is connected to the slider. The hydraulic cylinder, connecting block, and coupling are mounted on the side of the fixed mold where the side trimming lower mold cutting edge insert is installed. The hydraulic cylinder pumps oil and pulls back, thereby driving the slider, side trimming insert, and support block to slide towards the fixed mold until the blade-shaped end of the side trimming insert contacts the blade-shaped end of the side trimming lower mold cutting edge insert, thereby removing the waste material formed at the inlet of the lower gating system. The use of a hydraulic cylinder and a slider demonstrates the degree of automation of the equipment.

[0010] To more clearly illustrate the structural features and effects of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0011] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a partial exploded view of the present invention.

[0012] In the diagram: 1. Main body of the equipment; 11. Pressure core; 111. Upper runner inlet; 112. Lower runner inlet; 113. Cavity; 12. Fixed mold; 13. Slider guide plate; 14. Pressure core guide plate; 2. Trimming structure; 21. Front trimming insert; 22. Side trimming insert; 23. Side trimming lower mold cutting edge insert; 24. Support block; 25. Slider; 26. Hydraulic cylinder; 27. Connecting block; 28. Coupling. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0014] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0015] like Figures 1 to 3 As shown, this utility model embodiment provides a trimming mechanism that performs both front and side trimming simultaneously, including: The main body of the equipment 1 includes a pressing core 11 and a fixed mold 12. The pressing core 11 is slidably installed above the fixed mold 12 at a predetermined distance. One side of the pressing core 11 has an upper sprue inlet 111 and a lower sprue inlet 112. The upper sprue inlet 111 is positioned at a predetermined distance above the lower sprue inlet 112. The pressing core 11 forms a cavity 113 on the side close to the fixed mold 12. Both the upper sprue inlet 111 and the lower sprue inlet 112 are connected to the cavity 113. The trimming structure 2 includes a front trimming insert 21, a side trimming insert 22, a side trimming lower die cutting edge insert 23, and a support block 24. The support block 24 is installed on the upper end face of the side trimming insert 22, and the upper end face of the support block 24 is close to the upper sprue inlet 111. The lower end of the front trimming insert 21 is blade-shaped. The side trimming insert 22 and the side trimming lower die cutting edge insert 23 are both blade-shaped at their close ends and are at the same horizontal height. The side trimming lower die cutting edge insert 23 is installed on the side wall of the fixed mold 12, and the blade-shaped end of the side trimming lower die cutting edge insert 23 is close to the lower sprue inlet 112. The front trimming insert 21 is installed on the side of the pressure core 11, and the blade-shaped lower end of the front trimming insert 21 is close to the upper sprue inlet 111. The side trimming insert 22 can be slidably placed on one side of the pressure core 11, either close to or away from it. In this embodiment, when trimming is required, the side trimming insert 22 and the support block 24 slide toward the fixed mold 12 until the blade-shaped end of the side trimming insert 22 contacts the blade-shaped end of the side trimming lower mold cutting edge insert 23, thereby removing the waste material formed at the lower gating inlet 112 of the casting; the driving device drives the pressure core 11 to move downward toward the fixed mold 12, thereby driving the front trimming insert 21 on one side wall of the pressure core 11 to move downward synchronously, so that the front trimming insert 21 removes the waste material of the casting that extends out of the pressure core 11 and has a predetermined length of upper gating inlet 111; in this way, the waste material formed at the upper gating inlet 111 and the lower gating inlet 112 of the casting is removed by the front trimming insert 21 and the side trimming insert 22 at the same time without interfering with each other, and the trimming efficiency is improved; Specifically, the trimming structure 2 also includes a slider 25, which is slidably disposed on the side of the pressure core 11 on which the front trimming insert 21 is installed, and the side trimming insert 22 is installed on the upper end of the slider 25. Specifically, the trimming structure 2 also includes a hydraulic cylinder 26, a connecting block 27, and a coupling 28. The output shaft of the hydraulic cylinder 26 is connected to the connecting block 27. The end of the connecting block 27 away from the hydraulic cylinder 26 is connected to the coupling 28. The end of the coupling 28 away from the connecting block 27 is connected to the slider 25. The hydraulic cylinder 26, the connecting block 27, and the coupling 28 are installed on the side of the fixed mold 12 where the side trimming lower mold cutting edge insert 23 is installed. Specifically, the main body of the equipment 1 also includes a slider guide plate 13, the lower end face of the slider 25 is slidably disposed on the slider guide plate 13, and the slider guide plate 13 is fixedly installed on the side of the fixed mold 12 where the side trimming lower mold cutting edge insert 23 is installed; In this embodiment, the hydraulic cylinder 26 is pumped and pulled back, which in turn drives the slider 25, the side trimming insert 22 and the support block 24 to slide towards the fixed mold 12 until the blade-shaped end of the side trimming insert 22 contacts the blade-shaped end of the side trimming lower mold cutting edge insert 23, thereby removing the waste material formed at the lower gating inlet 112 of the casting. Specifically, the main body of the equipment 1 also includes a pressing core guide plate 14. A pair of pressing core guide plates 14 are provided, and the pair of pressing core guide plates 14 are respectively fixedly installed on the opposite side walls of the pressing core 11. Specifically, the upper surface of the slider 25 on which the side trimming insert 22 is mounted is set as an inclined surface; In this embodiment, by setting the slider 25 with an inclined surface, the waste material of the casting cut by the side trimming insert 22 can fall down with the inclined surface, thereby facilitating material unloading.

[0016] The working principle of this utility model is as follows: In the initial state, the molten metal enters the cavity 113 through the upper gating inlet 111 and the lower gating inlet 112. After a period of time, the molten metal in the cavity 113 cools down and forms a casting. At this time, the casting forms scrap that needs to be removed on the side near the upper gating inlet 111 and the lower gating inlet 112. At this time, the cylinder 26 pushes out, driving the connecting block 27 and the slider 25 connected to the coupling 28 to slide along the slider guide plate 13 and away from the fixed mold 12, thereby driving the support block 24 on the upper end of the slider 25 away from the upper runner inlet 111. When trimming is required, the hydraulic cylinder 26 is pumped back with oil, which in turn drives the slider 25, the side trimming insert 22 and the support block 24 to slide towards the fixed mold 12 until the blade-shaped end of the side trimming insert 22 contacts the blade-shaped end of the side trimming lower mold cutting edge insert 23, thereby removing the waste material formed at the lower gating inlet 112 of the casting. At the same time, the support block 24 slides to fit against the lower end face of the pressure core 11 with the upper gating inlet 111, so that the upper end face of the support block 24 supports the waste material formed on the side of the casting near the upper gating inlet 111; by setting the support block 24, the casting is prevented from moving downward or bending during trimming, thus reducing the probability of cracking of the casting. Subsequently, the driving device drives a pair of pressure core guide plates 14 on both sides of the pressure core 11 to move downward toward the fixed mold 12, thereby driving the front trimming insert 21 on one side wall of the pressure core 11 to move downward simultaneously, so that the front trimming insert 21 cuts off the waste material of the casting extending out of the pressure core 11 with a predetermined length of the upper gating inlet 111; in this way, the waste material formed at the upper gating inlet 111 and the lower gating inlet 112 of the final casting is simultaneously cut off by the front trimming insert 21 and the side trimming insert 22 without interfering with each other, and improving the trimming efficiency.

[0017] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A trimming mechanism that performs both front and side trimming simultaneously, characterized in that, include: The main body of the equipment (1) includes a pressing core (11) and a fixed mold (12). The pressing core (11) is slidably installed at a predetermined distance above the fixed mold (12). The pressing core (11) has an upper runner inlet (111) and a lower runner inlet (112) on one side. The upper runner inlet (111) is located at a predetermined distance above the lower runner inlet (112). The pressing core (11) forms a cavity (113) on the side close to the fixed mold (12). The upper runner inlet (111) and the lower runner inlet (112) are both connected to the cavity (113). The trimming structure (2) includes a front trimming insert (21), a side trimming insert (22), a side trimming lower die cutting edge insert (23), and a support block (24). The support block (24) is installed on the upper end face of the side trimming insert (22), and the upper end face of the support block (24) is close to the upper runner inlet (111). The lower end of the front trimming insert (21) is blade-shaped. The side trimming insert (22) and the side trimming lower die cutting edge insert (23) are both blade-shaped at their close ends. At the same horizontal height, the side trimming lower die cutting edge insert (23) is installed on the side wall of the fixed mold (12), and the blade-shaped end of the side trimming lower die cutting edge insert (23) is close to the lower runner inlet (112). The front trimming insert (21) is installed on the side of the pressure core (11), and the blade-shaped lower end of the front trimming insert (21) is close to the upper runner inlet (111). The side trimming insert (22) can be slidably placed on one side of the pressure core (11) towards or away from the pressure core (11).

2. The trimming mechanism that performs both front and side trimming simultaneously according to claim 1, characterized in that: The trimming structure (2) also includes a slider (25), which is slidably disposed on the side of the pressing core (11) on which the front trimming insert (21) is installed, and the side trimming insert (22) is installed on the upper end of the slider (25).

3. The trimming mechanism that performs both front and side trimming simultaneously according to claim 2, characterized in that: The trimming structure (2) also includes a hydraulic cylinder (26), a connecting block (27), and a coupling (28). The output shaft of the hydraulic cylinder (26) is connected to the connecting block (27). One end of the connecting block (27) away from the hydraulic cylinder (26) is connected to the coupling (28). One end of the coupling (28) away from the connecting block (27) is connected to the slider (25). The hydraulic cylinder (26), the connecting block (27), and the coupling (28) are installed on the side of the fixed mold (12) where the side trimming lower mold cutting edge insert (23) is installed.

4. The trimming mechanism that performs both front and side trimming simultaneously according to claim 3, characterized in that: The main body of the equipment (1) also includes a slider guide plate (13), the lower end face of the slider (25) is slidably disposed on the slider guide plate (13), and the slider guide plate (13) is fixedly installed on the side of the fixed mold (12) on which the side trimming lower mold cutting edge insert (23) is installed.

5. The trimming mechanism that performs both front and side trimming simultaneously according to claim 4, characterized in that: The main body of the equipment (1) also includes a pressing core guide plate (14), and a pair of pressing core guide plates (14) are provided, and the pair of pressing core guide plates (14) are respectively fixedly installed on the opposite side walls of the pressing core (11).

6. The trimming mechanism that performs both front and side trimming simultaneously according to claim 5, characterized in that: The slider (25) is set as an inclined surface on the upper end surface on which the side trimming insert (22) is installed.

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