Intercepting valve and mold

Abstract

The shutoff valve comprises a valve body and an adjusting piece, the valve body is provided with an adjusting through hole and a flow channel groove arranged in a penetrating mode, the adjusting piece is arranged in the adjusting through hole, a row of straight tooth structures arranged at equal intervals are arranged in the adjusting through hole, the adjusting piece comprises an outer gear, and the outer gear is arranged in the flow channel groove. The outer gear is meshed with the straight tooth structure, the adjusting piece extends into the adjusting through hole, the valve body is driven to move linearly through meshing transmission of the outer gear and the straight tooth structure, then the cross section area of communication between the runner groove and the mold runner is adjusted, more accurate flow control can be achieved through gear transmission, and the quality of final products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a shut-off valve and a mold. Background Art

[0002] At present, the interception methods commonly used in the industry mainly include adding screws to the flow channel to achieve flow control; using a simple slide design and manually tapping the slide tool to adjust the slide position to change the size of the flow channel; or using welding technology to control the size of the flow channel. However, these methods have significant shortcomings in practical applications, and cannot accurately adjust the size of the flow channel, and thus cannot achieve effective control of the raw material flow.

[0003] With the intensification of market competition and increasingly stringent cost control by customers, the requirements for product accuracy are also increasing. Especially in the production plan of multiple products with common molds, the requirements for product accuracy and timeliness have reached an unprecedented level. The traditional interception method can no longer meet the needs of modern industrial production due to its defects such as low accuracy and difficulty in adjustment. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a shut-off valve and a mold, which can accurately control the flow rate and improve product quality.

[0005] In a first aspect, an embodiment of the utility model provides a shut-off valve, the shut-off valve comprising:

[0006] The valve body comprises an adjusting through hole and a flow channel groove arranged through the adjusting through hole, and the inner wall of the adjusting through hole is provided with a row of straight tooth structures arranged at equal intervals;

[0007] An adjusting member is arranged in the adjusting through hole, and the adjusting member comprises an external gear, and the external gear is meshed with the spur gear structure;

[0008] The adjusting member extends into the adjusting through hole, and the external gear meshes with the spur gear structure to drive the valve body to move linearly to adjust the cross-sectional area of ​​the flow channel connecting the flow channel groove and the mold body.

[0009] Furthermore, the adjusting member further comprises a connecting rod, a fixing rod and an adjusting block, the external gear is arranged between the connecting rod and the fixing rod, and the adjusting block is arranged at an end of the connecting rod away from the external gear;

[0010] The fixing rod is provided with an external thread, the diameter of the adjusting block is larger than the width of the adjusting through hole, the fixing rod is threadedly connected to the mold body and the adjusting block is crimped above the adjusting through hole to fix the valve body relative to the mold body.

[0011] Furthermore, the length of the connecting rod is greater than the depth of the adjusting through hole, and the diameter of the external gear is greater than the diameter of the connecting rod and the diameter of the fixing rod, respectively.

[0012] Furthermore, a mounting groove is provided above the adjusting through hole, the mounting groove is connected to the adjusting through hole, and the width of the mounting groove is greater than or equal to the diameter of the adjusting block, and the depth of the mounting groove is greater than or equal to the thickness of the adjusting block.

[0013] Furthermore, a scale is provided on the surface of the valve body.

[0014] Further, the cross-sectional area of ​​the flow channel groove is the same as the cross-sectional area of ​​the flow channel, and the starting point of the scale is aligned with the groove wall of the flow channel groove.

[0015] In a second aspect, this embodiment further provides a mold, the mold comprising:

[0016] The mold body is provided with a flow channel and at least one movable groove, and the movable groove is cross-connected with the flow channel;

[0017] At least one shut-off valve as described in the first aspect, the valve body is movably arranged in the movable groove, the connection direction of the flow groove is the same as the connection direction of the flow channel, and the adjusting member drives the valve body to move in the movable groove through the meshing transmission of the external gear and the spur gear structure to adjust the cross-sectional area of ​​the connection between the flow groove and the flow channel.

[0018] Furthermore, a receiving groove and a fixed groove are sequentially arranged below the movable groove, the movable groove, the receiving groove and the fixed groove are sequentially connected, the diameter of the receiving groove is larger than the diameter of the fixed groove, and the adjusting through hole is connected to the receiving groove.

[0019] Furthermore, the adjusting member includes an external gear, a connecting rod, a fixing rod and an adjusting block, the fixing rod is provided with an external thread, the fixing groove is provided with an internal thread matching the external thread, the diameter of the accommodating groove is greater than or equal to the diameter of the external gear, and the depth of the accommodating groove is greater than or equal to the sum of the length of the fixing rod and the length of the external gear.

[0020] Furthermore, when the regulating block is crimped and the valve body is fixed relative to the mold body, the fixing rod is threadedly connected in the fixing groove, and the external gear is located in the receiving groove;

[0021] When the external gear meshes with the spur gear structure to drive the regulating valve body, the fixing rod is located in the receiving groove.

[0022] An embodiment of the utility model provides a shut-off valve and a mold, the shut-off valve includes a valve body and an adjusting member, the valve body is provided with an adjusting through hole and a flow channel groove arranged through the valve body, the adjusting member is arranged in the adjusting through hole, a row of spur tooth structures arranged at equal intervals is provided in the adjusting through hole, the adjusting member includes an external gear, the external gear is meshed with the spur tooth structure, the adjusting member extends into the adjusting through hole, the meshing transmission of the external gear and the spur tooth structure drives the valve body to move linearly, and then adjusts the cross-sectional area of ​​the connection between the flow channel groove and the mold flow channel, and more precise flow control can be achieved through gear transmission, which helps to improve the quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0024] Figure 1 It is a schematic diagram of the overall structure of the mold of an embodiment of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the valve body of an embodiment of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the adjusting member of an embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the shutoff valve of the utility model embodiment when it is not adjusted;

[0028] Figure 5 It is a structural schematic diagram of the shutoff valve of the utility model embodiment when adjusting;

[0029] Figure 6 is a cross-sectional view of the shut-off valve of the utility model embodiment when it is not adjusted;

[0030] Figure 7 It is a cross-sectional view of the shut-off valve of the utility model embodiment when being adjusted.

[0031] Description of reference numerals:

[0032] 10-valve body; 11-flow channel groove; 12-scale; 13-adjustment through hole; 14-straight tooth structure; 15-installation groove; 20-adjustment piece; 21-external gear; 22-connecting rod; 23-fixing rod; 231-external thread; 24-adjustment block; 241-groove; 30-mold body; 31-flow channel; 32-movable groove; 33-accommodation groove; 34-fixing groove; 341-internal thread. DETAILED DESCRIPTION

[0033] The present application is described below based on embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, some specific details are described in detail. It is possible for those skilled in the art to fully understand the present application without the description of these details. In order to avoid confusing the essence of the present application, known methods, processes, flows, components and circuits are not described in detail.

[0034] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0035] Unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0037] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0038] The embodiment of the present application provides a shut-off valve, Figure 4 and Figure 5 is a schematic diagram of the structure of the shut-off valve of this embodiment, referring to Figure 4 and Figure 5 The shut-off valve includes a valve body 10 and an adjusting member 20. The valve body 10 is provided with a flow channel groove 11 and an adjusting through hole 13 which are arranged through the flow channel 11, and the flow channel groove 11 is communicated with the flow channel 31 of the mold body 30. The adjusting member 20 is arranged in the adjusting through hole 13, and a row of spur gear structures 14 arranged at equal intervals are provided on the inner wall of the adjusting through hole 13. The adjusting member 20 includes an external gear 21, and the external gear 21 is meshed with the spur gear structure 14. Thus, the adjusting member 20 can extend into the adjusting through hole 13, and the valve body 10 is driven to move through the meshing transmission between the external gear 21 and the spur gear structure 14, thereby changing the cross-sectional area of ​​the communication between the flow channel groove 11 and the flow channel 31, so as to adjust the speed and flow rate of the fluid in the flow channel 31, so as to improve the quality of the final product.

[0039] Figure 2 is a schematic diagram of the structure of the valve body 10 of this embodiment, referring to Figure 2The valve body 10 includes a flow channel groove 11 and an adjustment through hole 13 that are arranged through. The flow channel groove 11 is arranged at one end of the valve body 10, and the through direction of the flow channel groove 11 is perpendicular to the moving direction of the valve body 10, so that the movable valve body 10 can adjust the size of the cross-sectional area of ​​the flow channel groove 11 communicating with the flow channel 31 of the mold body 30. The adjustment through hole 13 is arranged at the other end of the valve body 10 to avoid interference with the flow channel groove 11. A row of spur tooth structures 14 with equal spacing are arranged on the inner wall of the adjustment through hole 13. The adjusting member 20 and the valve body 10 can be gear-racked through the external gear 21 and the spur tooth structure 14, thereby controlling the movement of the valve body 10 and realizing the adjustment of the fluid in the flow channel 31.

[0040] Figure 4 and Figure 5 : is a schematic structural diagram of the shut-off valve of this embodiment, Figure 6 and Figure 7 2 is a cross-sectional view of the shut-off valve of this embodiment. The adjusting member 20 is disposed in the adjusting through hole 13. When adjusting the shut-off valve, the adjusting member 20 is moved until the outer gear 21 is aligned with the spur gear structure 14 in the adjusting through hole 13 so as to properly mesh. Figure 4 and Figure 5 The adjusting through hole 13 is set to be an oblong, and the width of the adjusting through hole 13 matches the diameter of the external gear 21. The external gear 21 can fully contact with the spur gear structure 14 to improve the accuracy of the meshing transmission.

[0041] Reference Figure 2 , a spur tooth structure 14 is arranged on the inner wall of the adjusting through hole 13. Specifically, a spur tooth structure 14 is arranged on one of the inner walls on both sides of the adjusting through hole 13, and the spur tooth structure 14 is arranged from the tangent point of the semicircle at one end of the adjusting through hole 14 and the side, and ends at the vertex of the semicircle at the other end of the adjusting through hole 14. The provision of the spur tooth structure 14 on one side makes the meshing of the external gear 21 and the spur tooth structure 14 more convenient, and can effectively reduce the wear damage during meshing. Furthermore, the diameter of the semicircles at both ends of the adjusting through hole 13 is the same as the tooth top diameter of the external gear 21, which makes it easier and more accurate to operate the meshing of the external gear 21 and the spur tooth structure 14.

[0042] Reference Figure 5 and Figure 7 After the outer gear 21 is meshed with the spur gear structure 14, the adjusting member 20 is rotated to mesh the outer gear 21 with the spur gear structure 14, thereby driving the valve body 10 to move in a straight line. The gear transmission has a precise proportional relationship, so the shut-off valve can more accurately adjust the size of the cross-sectional area between the flow channel groove 11 and the mold flow channel 31 through the gear transmission, thereby controlling the fluid speed and flow rate in the mold and improving product quality.

[0043] Figure 3 is a schematic diagram of the specific structure of the adjusting member 20 of this embodiment, referring to Figure 3 The adjusting member 20 includes an external gear 21, a connecting rod 22, a fixing rod 23 and an adjusting block 24. The external gear 21 is arranged between the connecting rod 22 and the fixing rod 23, and the adjusting block 24 is arranged at one end of the connecting rod 22 away from the external gear 21. The fixing rod 23 is also provided with an external thread 231, which can be threadedly connected with the mold body 30. Thus, the adjusting member 20 can adjust the movement of the valve body 10 while fixing the valve body 10 relative to the mold body 30. Figure 6 The diameter of the adjusting block 24 is greater than the width of the adjusting through hole 13 , the fixing rod 23 is threadedly connected to the mold body 30 and the adjusting block 24 is crimped above the adjusting through hole 13 to fix the valve body 10 relative to the mold.

[0044] Specifically, refer to Figure 4 and Figure 6 When the meshing transmission between the outer gear 21 and the spur gear structure 14 is not required, the adjusting member 20 continues to extend into the adjusting through hole 13 and allows the fixing rod 23 to extend into the mold body 30 below the valve body 10 for fixing. When the adjusting member 20 is fixed to the mold body 30, the adjusting member 20 gradually extends into the mold body 30 along with the threaded connection until the adjusting block 24 abuts against the top of the adjusting through hole 13, thereby achieving the limit fixation of the valve body 10 relative to the mold body 30. When the valve body 10 needs to be adjusted, the adjusting member 20 is rotated to separate the adjusting member 20 from the mold body 30, and then the outer gear 21 is aligned and meshed with the spur gear structure 14 to perform gear rack transmission. As a result, the adjusting member 20 can not only adjust the position of the valve body 10, but also limit and fix the adjusted valve body 10, with a simple structure and convenient operation. The shut-off valve achieves precise control of the fluid, and can adapt to different installation environments, which also increases the convenience of its maintenance.

[0045] Reference Figure 6 and Figure 7 , the diameter of the external gear 21 is larger than the diameter of the connecting rod 22 and the diameter of the fixing rod 23, respectively, so that the adjusting member 20 can move up and down in the adjusting through hole 13. Also, the length of the connecting rod 22 is larger than the depth of the adjusting through hole 13, so that when the fixing rod 23 is connected and fixed to the mold body 30, the external gear 21 is completely located below the adjusting through hole 13, avoiding the meshing of the external gear 21 with the spur gear structure 14 during the threaded connection to affect the position of the valve body 10. The size relationship between the external gear 21, the connecting rod 22, the fixing rod 23, the adjusting block 24 and the adjusting through hole 13 effectively avoids the collision and wear of the external gear 21, while also ensuring the stability of the adjustment of the valve body 10.

[0046] Further, refer to Figure 4-Figure 7, a mounting groove 15 is provided above the adjusting through hole 13. The mounting groove 15 is connected to the adjusting through hole 13, and the width of the mounting groove 15 is greater than or equal to the diameter of the adjusting block 24, and the depth of the mounting groove 15 is greater than or equal to the thickness of the adjusting block 24. After the adjusting member 20 is threadedly connected to the mold body 30, the adjusting block 24 is located in the mounting groove 15, and at this time, the top surface of the adjusting block 24 is lower than the top surface of the valve body 10. The setting of the mounting groove 15 enables the adjusting block 24 to be hidden in the valve body 10 after the adjustment is completed, which improves the overall aesthetics of the shut-off valve while avoiding accidental collision and damage to the adjusting block 24, thereby ensuring the overall stability of the shut-off valve.

[0047] Reference Figure 2 The top of the adjusting block 24 is provided with a groove 241 to facilitate the operator to rotate the adjusting member 20. Optionally, the groove 241 can be set to a straight line, a cross, an inner hexagon or other operable shapes, and the adjusting block 24 can also be set to a hexagon, a rectangle or other shapes for easy operation.

[0048] Further, refer to Figure 2 , Figure 4 and Figure 5 , a scale 12 is also provided on the surface of the valve body 10. The cross-sectional area of ​​the flow channel groove 11 is the same as the cross-sectional area of ​​the flow channel 31, and the starting point of the scale 12 is aligned with the groove wall of the flow channel groove 11. Therefore, when the shut-off valve is not adjusted, the cross-sectional area of ​​the flow between the flow channel groove 11 and the flow channel 31 is the maximum area, and the starting point of the scale 12 is aligned with the groove wall of the flow channel groove 11 and the groove wall of the flow channel 31, respectively. In the process of adjusting the shut-off valve, the cross-sectional area of ​​the flow between the flow channel groove 11 and the flow channel 31 gradually becomes smaller. At this time, the distance moved by the valve body 10 can be confirmed by the corresponding aligned scales on the groove wall of the flow channel 31 and the scale 12, so as to achieve precise control of the flow rate. At the same time, for occasions that require frequent adjustment, the scale 12 can help the operator quickly and accurately restore to the previously set flow rate, improve work efficiency and reduce errors.

[0049] The shut-off valve of this embodiment is provided with an external gear on the adjusting member, and a straight tooth structure is provided in the valve body. The valve body is moved and adjusted by gear transmission, thereby improving the accuracy of the shut-off valve in regulating the fluid. The shut-off valve is also provided with an adjusting block and an external thread on the adjusting member to achieve limited fixation of the valve body and ensure the stability of the shut-off valve. Therefore, the shut-off valve realizes adjustment and fixation of the valve body through the adjusting member, and has a simple structure, convenient operation and strong practicality.

[0050] The embodiment of the present application also provides a mold, Figure 1 is a schematic diagram of the overall structure of the mold of this embodiment, referring to Figure 1 The mold includes a mold body 30 and the shut-off valve described in the above embodiment.

[0051] Reference Figure 1 The mold body 30 is provided with a flow channel 31 and at least one movable groove 32, and the movable groove 32 is cross-connected with the flow channel 31. The valve body 10 is movably arranged in the movable groove 32, and the flow channel groove 11 on the valve body 10 is connected with the flow channel 31, and the connection direction of the flow channel groove 11 is the same as the connection direction of the flow channel 31. Figure 4 and Figure 5 The valve body 10 moves in the movable groove 32 along the X direction, and the adjusting member 20 drives the valve body 10 to move in the movable groove 32 through the meshing transmission of the external gear 21 and the spur gear structure 14 to adjust the cross-sectional area of ​​the flow channel groove 11 connected to the flow channel 31, thereby realizing the control of the fluid in the flow channel 31.

[0052] Reference Figure 1 , Figure 6 and Figure 7 The length of the movable groove 32 is greater than the length of the valve body 10 , so that the valve body 10 can move in the movable groove 32 to adjust the cross-sectional area of ​​the communication between the flow channel groove 11 and the flow channel 31 .

[0053] Preferably, the length of the movable groove 32 is equal to the sum of the length of the valve body 10 and the width of the flow channel groove 11. Figure 4 When the cross-sectional area of ​​the flow channel groove 11 and the flow channel 31 is the largest and the flow channel 31 is fully opened, that is, when the valve body 10 is not adjusted, the end of the valve body 10 away from the flow channel groove 11 abuts against the groove wall of the corresponding end of the movable groove 32. Figure 5 When the valve body 10 is adjusted, the valve body 10 moves along the X direction, and the cross-sectional area of ​​the flow channel groove 11 and the flow channel 31 gradually decreases. When the cross-sectional area of ​​the flow channel groove 11 and the flow channel 31 is 0, the flow channel 31 is completely closed. At this time, the end of the valve body 10 close to the flow channel groove 11 abuts against the groove wall of the corresponding end of the movable groove 32. Therefore, the size design of the movable groove 32 and the valve body 10 that matches each other helps to control the fully open and closed state of the shut-off valve, and the adjustment of the fluid in the flow channel 31 is more accurate and convenient.

[0054] Optionally, the size of the movable slot 32 can also be set according to specific needs.

[0055] Further, refer to Figure 6 and Figure 7, a receiving groove 33 and a fixed groove 34 are sequentially arranged below the movable groove 32. The movable groove 32, the receiving groove 33 and the fixed groove 34 are sequentially connected, and the diameter of the receiving groove 33 is larger than the diameter of the fixed groove 34. At the same time, the adjustment through hole 13 is connected with the receiving groove 33, and the adjustment member 20 can be inserted into the adjustment through hole 13, the receiving groove 33 and the fixed groove 34 in sequence, so that the adjustment member 20 can be adjusted and fixed. An internal thread 341 is also arranged in the fixed groove 34, and the internal thread 341 matches the external thread 231. The adjustment member 20 and the mold body 30 are threadedly connected through the external thread 231 and the internal thread 341.

[0056] Reference Figure 6 and Figure 7 The diameter of the receiving groove 33 is greater than or equal to the diameter of the external gear 21, so that the receiving groove 33 can accommodate and protect the external gear 21 when the fixing rod 23 extends into the fixing groove 34. At the same time, the depth of the receiving groove 33 is greater than or equal to the sum of the length of the fixing rod 23 and the length of the external gear 21. The depth of the receiving groove 33 enables the fixing rod 23 to extend into the fixing groove 34 after the external gear 21 is completely separated from the spur gear structure 14, and also enables the external gear 21 to mesh with the spur gear structure 14 when the fixing rod 23 is completely extended into the fixing groove 34. The rack-and-pinion transmission between the external gear 21 and the spur gear structure 14 and the threaded connection between the external thread 231 and the internal thread 341 both require the rotating adjustment member 20, and the receiving groove 33 provides sufficient space for the external gear 21 and the fixing rod 23 to avoid the rack-and-pinion transmission and the threaded connection being performed simultaneously to affect the stability of the valve body 10.

[0057] Reference Figure 4 and Figure 6 When the adjusting block 24 is pressed against the valve body 10 to fix it relative to the mold body 30, the fixing rod 23 is threadedly connected in the fixing groove 34, and the external gear 21 is located in the receiving groove 33. When the valve body 10 does not need to be adjusted, the adjusting member 20 is connected and fixed to the mold body 30 through the external thread 231 and the internal thread 341, and the adjusting block 24 is abutted against the top of the adjusting through hole 13 to achieve the limit fixation of the valve body 10 relative to the mold body 30. In addition, the length of the connecting rod 22 can ensure that when the fixing rod 23 is connected to the fixing groove 34, the external gear 21 has completely disengaged from the spur gear structure 14 and is located in the receiving groove 33. At the same time, the length setting of the connecting rod 22 also avoids the subsequent meshing transmission between the external gear 21 and the spur gear structure 14 to affect the position of the valve body 10 during the subsequent process of the adjusting member 20 being screwed out of the fixing groove 34.

[0058] Reference Figure 5 and Figure 7When the valve body 10 needs to be adjusted, the adjusting member 20 is gradually separated from the mold body 30 by rotating the adjusting member 20, and the adjusting member 20 is gradually moved upward until the fixing rod 23 is completely separated from the fixing groove 34. In addition, the depth of the receiving groove 33 is greater than or equal to the sum of the length of the fixing rod 23 and the length of the external gear 21. Therefore, in the process of rotating the adjusting member 20 and making the fixing rod 23 separate from the fixing groove 34, the external gear 21 is always located in the receiving groove 33, which effectively avoids the meshing transmission between the external gear 21 and the spur gear structure 14 to affect the control of the fluid.

[0059] At the same time, when the external gear 21 and the spur gear structure 14 are meshed with each other to drive the regulating valve body 10 , the fixing rod 23 is located in the receiving groove 33 .

[0060] Reference Figure 5 and Figure 7 When the adjusting member 20 is moved to the point where the outer gear 21 is aligned and meshed with the spur gear structure 14, the fixing rod 23 and the fixing groove 34 are completely separated, thereby ensuring that the outer gear 21 and the spur gear structure 14 can be normally meshed and transmitted. After the outer gear 21 is aligned and meshed with the spur gear structure 14, the adjusting member 20 is rotated as required, and the valve body 10 is driven to move through the gear rack transmission between the outer gear 21 and the spur gear structure 14. The movement of the valve body 10 changes the cross-sectional area between the flow channel groove 11 and the flow channel 31, thereby achieving the adjustment of the mold flow channel 31.

[0061] The mold body of this embodiment is provided with a receiving groove and a fixing groove for accommodating the adjusting part in the fixed shut-off valve, and the size relationship between the receiving groove and the fixing groove and the adjusting part cooperates with the adjusting part to ensure stability and safety during the adjustment process. At the same time, the adjusting part in the shut-off valve adjusts the valve body through a gear rack transmission, which effectively improves the control accuracy of the fluid in the flow channel and helps to improve the final product quality.

[0062] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A shut-off valve, characterized in that: The shut-off valve comprises: A valve body (10) comprises an adjusting through hole (13) and a flow channel groove (11) arranged through the adjusting through hole, wherein the inner wall of the adjusting through hole (13) is provided with a row of straight tooth structures (14) arranged at equal intervals; An adjusting member (20) is arranged in the adjusting through hole (13), the adjusting member (20) comprising an external gear (21), the external gear (21) being meshed with the spur gear structure (14); The adjusting member (20) extends into the adjusting through hole (13), and the external gear (21) meshes with the spur gear structure (14) to drive the valve body (10) to move linearly so as to adjust the cross-sectional area of ​​the flow channel groove (11) connected to the flow channel (31) of the mold body (30).

2. The shut-off valve according to claim 1, characterized in that: The adjusting member (20) further comprises a connecting rod (22), a fixing rod (23) and an adjusting block (24); the external gear (21) is arranged between the connecting rod (22) and the fixing rod (23); and the adjusting block (24) is arranged at one end of the connecting rod (22) away from the external gear (21); The fixing rod (23) is provided with an external thread (231), the diameter of the adjusting block (24) is greater than the width of the adjusting through hole (13), the fixing rod (23) is threadedly connected to the mold body (30), and the adjusting block (24) is crimped onto the adjusting through hole (13) to fix the valve body (10) relative to the mold body (30).

3. The shut-off valve according to claim 2, characterized in that: The length of the connecting rod (22) is greater than the depth of the adjusting through hole (13), and the diameter of the external gear (21) is greater than the diameter of the connecting rod (22) and the diameter of the fixing rod (23).

4. The shut-off valve according to claim 2, characterized in that: A mounting groove (15) is provided above the adjusting through hole (13); the mounting groove (15) is communicated with the adjusting through hole (13); the width of the mounting groove (15) is greater than or equal to the diameter of the adjusting block (24); and the depth of the mounting groove (15) is greater than or equal to the thickness of the adjusting block (24).

5. The shut-off valve according to any one of claims 1 to 4, characterized in that: A scale (12) is also provided on the surface of the valve body (10).

6. The shut-off valve according to claim 5, characterized in that: The cross-sectional area of ​​the flow channel groove (11) is the same as the cross-sectional area of ​​the flow channel (31), and the starting point of the scale (12) is aligned with the groove wall of the flow channel groove (11).

7. A mold, characterized in that: The mold comprises: A mold body (30) is provided with a flow channel (31) and at least one movable groove (32), wherein the movable groove (32) is cross-connected with the flow channel (31); At least one shut-off valve according to any one of claims 1 to 6, wherein the valve body (10) is movably arranged in the movable groove (32), the connection direction of the flow channel groove (11) is the same as the connection direction of the flow channel (31), and the adjusting member (20) drives the valve body (10) to move in the movable groove (32) through the meshing transmission of the external gear (21) and the spur gear structure (14) to adjust the cross-sectional area of ​​the connection between the flow channel groove (11) and the flow channel (31).

8. The mold according to claim 7, characterized in that: An accommodating groove (33) and a fixed groove (34) are sequentially arranged below the movable groove (32); the movable groove (32), the accommodating groove (33) and the fixed groove (34) are sequentially connected; the diameter of the accommodating groove (33) is larger than the diameter of the fixed groove (34); and the adjusting through hole (13) is connected to the accommodating groove (33).

9. The mold according to claim 8, characterized in that: The adjusting member (20) comprises an external gear (21), a connecting rod (22), a fixing rod (23) and an adjusting block (24); the fixing rod (23) is provided with an external thread (231); the fixing groove (34) is provided with an internal thread (341) matching with the external thread (231); the diameter of the receiving groove (33) is greater than or equal to the diameter of the external gear (21); and the depth of the receiving groove (33) is greater than or equal to the sum of the length of the fixing rod (23) and the length of the external gear (21).

10. The mold according to claim 9, characterized in that: When the regulating block (24) is pressed against the valve body (10) to be fixed relative to the mold body (30), the fixing rod (23) is threadedly connected in the fixing groove (34), and the external gear (21) is located in the receiving groove (33); When the external gear (21) and the spur gear structure (14) are meshed and driven to adjust the valve body (10), the fixing rod (23) is located in the accommodating groove (33).

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