Positioning structure of core-pulling static mold

Abstract

The utility model discloses a positioning structure of a core-pulling static mold, which is provided with a retaining sleeve and a clamping groove, prevents a core-pulling piece from moving rightwards in the mold pouring process, effectively avoids the condition that the core-pulling piece retreats due to overlarge pressure generated during injection molding, and further solves the condition that the product quality is unstable. And by pushing the retaining rod back and forth and cooperating with a limiting plate, an adjusting groove and other structures, a user can conveniently and rapidly relieve limitation, the locking work efficiency is improved, further, an early warning assembly is arranged, after a warning lamp is turned off, the function failure of the retaining assembly is reminded, the retaining assembly is conveniently replaced in time, and the stable retaining effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a positioning structure of a core-pulling static mold. Background Art

[0002] A mold is a model, and products are made according to this model. In industrial production, various molds and tools are used to obtain the required products by methods such as injection molding, blow molding, extrusion, die casting or forging, smelting, and stamping. Conventional molds are generally opened from top to bottom. After the mold is opened, the finished product is ejected by the ejection structure of the mold. However, for castings with side holes / grooves, the core of the hole / groove needs to be pulled out laterally after the mold is opened. This operation is called core pulling.

[0003] The existing core pulling operation is usually carried out by a hydraulic cylinder to push the core pulling insert to move so that the core pulling insert is inserted into the mold. However, the pressure generated during molding and injection molding is too large, so that the core pulling insert often moves backward during production, resulting in unstable product quality. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a positioning structure for a core-pulling static mold.

[0005] The utility model provides a positioning structure for a core-pulling static mold, comprising:

[0006] An outer shell has a first space inside and extends in a first direction. Second sliding grooves are formed through two side walls of the outer shell along a second direction. The first direction and the second direction are perpendicular to each other.

[0007] A main slider is arranged in the first space and can move along the first direction. Along the first direction, one end of the main slider is connected to a core-pulling member through a first connecting assembly, and the other end of the main slider is provided with a second connecting rod. An adjusting groove is provided at the middle of the second connecting rod corresponding to the position of the second slide groove;

[0008] A backstop assembly, which passes through the two second slide grooves and the adjusting groove, and when the main slider is located at the end of the outer shell body close to the core-pulling member, the backstop assembly is used to limit the main slider from moving along the first direction toward the side away from the core-pulling member;

[0009] A driving assembly is arranged at the end of the second connecting rod away from the main sliding block, and is used for driving the main sliding block to move along the first direction.

[0010] According to the technical solution provided in the embodiment of the present application, the backstop assembly includes a backstop rod passing through the two second sliding grooves and the adjustment groove, the axis extension direction of the backstop rod is the second direction, a backstop sleeve is sleeved on the middle part of the backstop rod, and a clamping groove is provided at the end of the adjustment groove away from the core pulling part, the diameter of the backstop rod, the width of the adjustment groove along the third direction, the diameter of the backstop sleeve and the inner diameter of the clamping groove increase successively, and the third direction, the second direction and the first direction are perpendicular to each other.

[0011] According to the technical solution provided in the embodiment of the present application, limit plates are provided at both ends of the anti-retraction rod. When one of the limit plates is in contact with the outer surface of the outer shell, the anti-retraction sleeve is located inside the clamping groove. When the other limit plate is in contact with the outer surface of the outer shell, the anti-retraction sleeve is located on one side of the second connecting rod.

[0012] According to the technical solution provided in the embodiment of the present application, the outer shell has a first slide groove at both ends along the third direction, the main slider has a first slide groove at both ends along the third direction, the two side walls of the first slide groove along the second direction are in contact with the inner wall of the first slide groove, the main slider has a second slide groove at both ends along the second direction, the two side walls of the second slide groove along the third direction are in contact with the inner wall of the second slide groove, and the extension directions of the first slide groove and the second slide groove are both the first direction.

[0013] According to the technical solution provided in the embodiment of the present application, the side wall of the outer shell is provided with an early warning component for giving an alarm when the anti-retraction component fails.

[0014] According to the technical solution provided in the embodiment of the present application, the early warning component includes a warning light arranged on the surface of the outer shell, and a push switch is provided on the surface of the outer shell corresponding to the second slide groove close to the core pulling part, the input end of the warning light is electrically connected to the output end of the push switch, and the input end of the push switch is electrically connected to the output end of the AC power, and a bending rod is provided near the push switch end of the second slider, and when the stop sleeve is located inside the clamping groove, the bending rod is squeezed away from the second slider end and turns on the push switch.

[0015] According to the technical solution provided in the embodiment of the present application, a base plate is provided under the outer shell, and two studs are provided on the base plate and distributed on both sides of the outer shell along the second direction. A clamping assembly is installed on the two studs, and the clamping assembly is used to apply a clamping force to the top of the outer shell toward the base plate.

[0016] According to the technical solution provided in the embodiment of the present application, a first connecting plate is provided at the position of the two studs corresponding to the top of the outer shell, each of the studs passes through the corresponding first connecting plate, each of the studs is provided with a threaded external gear, the bottom end of each of the external gears abuts against the top end of the first connecting plate, and the two external gear outer sleeves are provided with internal gears, which are meshingly connected with the external gears.

[0017] According to the technical solution provided in the embodiment of the present application, the first connecting component includes a first connecting rod connected to the main slider, the first connecting rod is provided with a second slot away from the end of the main slider, a third connecting rod is inserted in the second slot, the third connecting rod is connected to the core pulling part away from the end of the main slider, and the third connecting rod is detachably connected to the first connecting rod.

[0018] According to the technical solution provided in the embodiment of the present application, a first slot is opened through the first slider and the main slider, the extension direction of the first slot is the third direction, a second main slider is arranged above the main slider, and a linkage plate is inserted through the first slots of the two main sliders.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model is provided with a back-stop sleeve and a clamping groove to prevent the core pulling part from moving rightward during the casting process of the mold, effectively avoiding the situation where the core pulling part retreats due to excessive pressure generated during molding and injection molding, thereby solving the problem of unstable product quality caused by this. The back-stop rod is pushed back and forth, and cooperates with structures such as a limit plate and an adjustment groove, so that the user can quickly release the restriction and improve the locking efficiency. Furthermore, an early warning component is provided, which reminds that the back-stop component has failed after the warning light goes out, so that the back-stop component can be replaced in time to ensure a stable back-stop effect. In addition, a linkage plate, a second slot, two main slides and two outer shells can be provided to provide two support points for a larger core pulling part to ensure the stable movement of the core pulling part, and the two outer shells are fixed through the cooperation of the clamping component, the bottom plate and the two studs to ensure the stability of the outer shell, thereby maintaining the stability of the main slide during movement.

[0021] It should be understood that the contents described in the utility model summary are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0023] Figure 1 A schematic structural diagram of a positioning structure of a core-pulling static mold provided in an embodiment of the present application;

[0024] Figure 2 A schematic structural diagram of a main slider and an outer shell in a positioning structure of a core-pulling static mold provided in an embodiment of the present application;

[0025] Figure 3 A schematic structural diagram of a first connecting rod and a third connecting rod in a positioning structure of a core-pulling static mold provided in an embodiment of the present application;

[0026] Figure 4 A schematic structural diagram of a stop sleeve and a second connecting rod in a positioning structure of a core-pulling static mold provided in an embodiment of the present application;

[0027] Figure 5 A schematic structural diagram of a retaining ring and an external gear in a positioning structure of a core-pulling static mold provided in an embodiment of the present application;

[0028] Figure 6 A schematic diagram of the structure of a stop rod and a limit plate in a positioning structure of a core-pulling static mold provided in an embodiment of the present application;

[0029] Figure 7 A schematic diagram of the installation structure of a linkage plate in a positioning structure of a core-pulling static mold provided in an embodiment of the present application.

[0030] Numbers in the figure:

[0031] 1. outer shell; 11. first slide groove; 12. second slide groove; 13. first connecting plate;

[0032] 2. Main slider; 21. First slider; 22. First slot; 23. Second slider; 24. Warning light; 25. Press switch; 26. Bending rod;

[0033] 3. First connecting assembly; 31. First connecting rod; 32. Second slot; 33. Third connecting rod; 34. Countersunk hole; 35. Through hole; 36. Threaded hole; 37. Screw;

[0034] 4. core-pulling part; 41. first core-pulling insert; 42. second core-pulling insert

[0035] 51. second connecting rod; 52. adjusting slot; 53. clamping slot;

[0036] 6. Drive components;

[0037] 7. Retraction stop assembly; 71. Retraction stop rod; 72. Retraction stop sleeve; 73. Limit plate; 74. Pull ring;

[0038] 8. Clamping assembly; 81. External gear; 82. Internal gear; 83. Retaining ring;

[0039] 9. Linkage board;

[0040] 10. Base plate; 101. Stud. DETAILED DESCRIPTION

[0041] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0042] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] Example 1

[0044] Please refer to Figure 1 to Figure 7 The embodiment of the utility model provides a positioning structure of a core-pulling static mold, comprising:

[0045] The outer shell 1 has a first space inside and extends in a first direction. The outer shell 1 has a second slide groove 12 extending through both side walls along a second direction. The first direction is perpendicular to the second direction. Figure 1 The left and right directions in the second direction are Figure 1 The front-to-back direction in

[0046] The main slider 2 is arranged in the first space and can move along the first direction. Along the first direction, one end of the main slider 2 is connected to the core puller 4 through the first connecting component 3. The other end of the main slider 2 is provided with a second connecting rod 51. The middle part of the second connecting rod 51 is provided with an adjusting groove 52 at a position corresponding to the second slide groove 12. The core puller 4 is a part combined with the mold.

[0047] The backstop component 7 penetrates through the two second slide grooves 12 and the adjusting groove 52. When the main slider 2 is located at the end of the outer shell 1 close to the core-pulling member 4, the backstop component 7 is used to limit the main slider 2 from moving along the first direction toward the side away from the core-pulling member 4;

[0048] A driving assembly 6, provided at the end of the second connecting rod 51 away from the main slider 2, for driving the main slider 2 to move along the first direction, wherein the driving assembly 6 can be a hydraulic telescopic cylinder or a pneumatic telescopic cylinder, and is connected to a liquid supply device or an air supply device in a mold processing workshop;

[0049] like Figure 1 As shown, before the mold is cast, the driving component 6 pushes the second connecting rod 51, the main slider 2, the first connecting component 3 and the core pulling component 4 to combine the core pulling component 4 with the mold, and the main slider 2 is located at the leftmost end of the outer shell 1. At this time, the anti-retraction component 7 is used to prevent the core pulling component 4 from moving right during the mold casting process, which effectively avoids the situation where the core pulling component 4 retreats due to excessive pressure generated during molding and injection, thereby solving the problem of unstable product quality caused by this.

[0050] In some embodiments, the backstop assembly 7 includes a backstop rod 71 that passes through the two second slide grooves 12 and the adjustment groove 52, the axis extension direction of the backstop rod 71 is the second direction, a backstop sleeve 72 is sleeved on the middle part of the backstop rod 71, and a clamping groove 53 is provided at the end of the adjustment groove 52 away from the core pulling member 4, the diameter of the backstop rod 71, the width of the adjustment groove 52 along the third direction, the diameter of the backstop sleeve 72 and the inner diameter of the clamping groove 53 increase in sequence, and the third direction, the second direction and the first direction are perpendicular to each other;

[0051] like Figure 2 and Figure 4 As shown, wherein the third direction is Figure 1 When the cam 72 is in the unlocking state, the locking cam 73 is in the unlocking state, and the locking cam 73 is in the unlocking state.

[0052] In some embodiments, both ends of the stop rod 71 are sleeved with a limit plate 73. When one limit plate 73 is in contact with the outer surface of the outer shell 1, the stop sleeve 72 is located inside the clamping groove 53. When the other limit plate 73 is in contact with the outer surface of the outer shell 1, the stop sleeve 72 is located on one side of the second connecting rod 51.

[0053] like Figure 2 and Figure 6 As shown, the diameter of the limit plate 73 is greater than the width of the second slide groove 12, which firstly avoids the situation where the backstop rod 71 is separated from the outer shell 1, and there is no need to store the backstop rod 71, which is convenient for use at any time. In addition, the limit plate 73 fits with the outer surface of the outer shell 1, serving as a positioning indicator for the backstop sleeve 72 inside the clamping groove 53, so that the user can understand the position of the backstop sleeve 72 more accurately to ensure the purpose of restriction and locking.

[0054] In some embodiments, the outer shell 1 has first slide grooves 11 at both ends along the third direction, the main slider 2 has first slide blocks 21 at both ends along the third direction, and the two side walls of the first slide block 21 along the second direction are in contact with the inner wall of the first slide groove 11, the main slider 2 has second slide blocks 23 at both ends along the second direction, and the two side walls of the second slide block 23 along the third direction are in contact with the inner wall of the second slide groove 12, and the extension directions of the first slide groove 11 and the second slide groove 12 are both the first direction;

[0055] like Figure 2 , Figure 4 and Figure 5 As shown, by moving the first slider 21 along the first slide groove 11 and the second slider 23 along the second slide groove 12, the main slider 2 can be stably moved in the left and right directions to avoid shaking of the main slider 2 during movement.

[0056] In some embodiments, the side wall of the outer shell 1 is provided with an early warning component for giving an alarm when the function of the anti-retraction component 7 fails;

[0057] like Figure 6 As shown, the early warning component will give an alarm when the anti-recoil component 7 fails to function. The user can replace the corresponding parts in time when the anti-recoil component 7 fails, so that the anti-recoil component 7 can maintain the function of preventing the main slider 2 from moving, avoiding the situation where the user is unaware that the anti-recoil component 7 is damaged.

[0058] In some embodiments, the early warning component includes a warning light 24 disposed on the surface of the outer shell 1, and a push switch 25 is disposed on the surface of the outer shell 1 corresponding to the second slide groove 12 near the core pulling member 4. The input end of the warning light 24 is electrically connected to the output end of the push switch 25, and the input end of the push switch 25 is electrically connected to the output end of the mains. A bending rod 26 is disposed near the end of the push switch 25 of the second slider 23. When the stop sleeve 72 is located inside the clamping groove 53, the bending rod 26 is away from the end of the second slider 23 to squeeze and turn on the push switch 25.

[0059] like Figure 6As shown, when the anti-retraction sleeve 72 is located inside the clamping groove 53, that is, the core pulling part 4 is in a state of being combined with the mold, the bending rod 26 squeezes the push switch 25, connects the input end of the warning light 24 and the output end of the AC power, and the warning light 24 lights up. If the anti-retraction component 7 fails to function, the bending rod 26 no longer squeezes the push switch 25, the input end of the warning light 24 and the output end of the AC power are disconnected, and the warning light 24 goes out. At this time, the user can judge that the anti-retraction component 7 has failed to function by the fact that the warning light 24 is off, which facilitates timely inspection and maintenance.

[0060] In some embodiments, a bottom plate 10 is provided below the outer shell 1, and two studs 101 are provided on the bottom plate 10 and distributed on both sides of the outer shell 1 along the second direction, and a clamping assembly 8 is installed on the two studs 101, and the clamping assembly 8 is used to apply a clamping force toward the bottom plate 10 to the top of the outer shell 1;

[0061] like Figure 1 and Figure 5 As shown, the outer shell 1 is supported by the bottom plate 10, and the pressing assembly 8 cooperates to apply downward pressure to the outer shell 1 to complete the clamping of the outer shell 1, and then the bottom plate 10 is installed on one side of the mold to finally realize the installation of the outer shell 1.

[0062] In some embodiments, a first connecting plate 13 is provided at the top of the outer shell 1 corresponding to the position of the two studs 101, each of the studs 101 passes through the corresponding first connecting plate 13, and each of the studs 101 is sleeved with a threaded external gear 81, and the bottom end of each of the external gears 81 abuts against the top end of the first connecting plate 13, and the two external gears 81 are covered with an internal gear 82, and the internal gear 82 is meshed and connected with the external gear 81;

[0063] like Figure 2 and Figure 5As shown, the inner gear 82 is rotated to drive the two outer gears 81 to rotate through the meshing relationship, and through the threaded connection relationship between the outer gear 81 and the stud 101, the outer gear 81 gradually moves downward to squeeze the first connecting plate 13, thereby applying the downward pressing force to the outer shell 1, and with the support of the bottom plate 10, the purpose of clamping the outer shell 1 is completed. Optionally, when it is necessary to adjust the height of the outer shell 1 from the bottom plate 10, a required The clamping assembly 8 can press the bottom end of the first connecting plate 13 upward through the second clamping assembly 8, so that the installation of the outer shell 1 can be stable without the bottom plate 10. Preferably, a retaining ring 83 is provided at the top of the inner gear 82, and a first gap is provided between the inner wall of the retaining ring 83 and the stud 101, and the bottom end of the retaining ring 83 is fitted with the top end of the outer gear 81, so that when the inner gear 82 is rotated, the retaining ring 83 is supported by the outer gear 81, so that it is more convenient for the user to rotate the inner gear 82.

[0064] In some embodiments, the first connecting assembly 3 includes a first connecting rod 31 connected to the main slider 2, a second slot 32 is provided at the end of the first connecting rod 31 away from the main slider 2, a third connecting rod 33 is inserted in the second slot 32, the end of the third connecting rod 33 away from the main slider 2 is connected to the core-pulling member 4, and the third connecting rod 33 is detachably connected to the first connecting rod 31;

[0065] like Figure 1 and Figure 3 As shown, the third connecting rod 33 is connected to the first core-pulling insert 41 in the core-pulling component 4. The detachable connection between the first connecting rod 31 and the third connecting rod 33 facilitates the replacement of the first connecting rod 31 and the first core-pulling insert 41. The projection area of ​​the first core-pulling insert 41 along the first direction is small, and only one supporting point, i.e., one first connecting rod 31, is required. When the projection area of ​​the core-pulling component 4 along the first direction is large, reference may be made to the following embodiments. Optionally, along the second direction, one end of the first connecting rod 31 is provided with a plurality of countersunk holes 34 connected to the second slot 32, and the other end is penetrated by a threaded hole 36 corresponding to the countersunk hole 34. A through hole 35 corresponding to the countersunk hole 34 is penetrated in the middle of the third connecting rod 33. A screw 37 is also inserted inside the first connecting rod 31. The screw 37 penetrates the countersunk hole 34 and the through hole 35 in sequence, and is threadedly connected to the threaded hole 36, thereby realizing the detachable connection between the first connecting rod 31 and the third connecting rod 33.

[0066] Usage process: first, the driving assembly 6 is used to drive the second connecting rod 51, the main slider 2, the first connecting assembly 3 and the first core-pulling insert 41 to move to the left. When the first slider 21 abuts against the left wall of the first slide groove 11 and the second slider 23 abuts against the left wall of the second slide groove 12, the first core-pulling insert 41 is connected to the corresponding mold section, and the backstop rod 71 is located in the clamping groove 53. At this time, the pull ring 74 is pulled until one of the limit plates 73 abuts against the side surface of the outer shell 1, and the backstop sleeve 72 is inserted into the clamping groove 53, thereby preventing the main slider 2 and the first core-pulling insert 41 from moving to the right. After the casting is completed, the pull ring 74 is pulled to make the other limit plate 73 abut against the other side surface of the outer shell 1, and the backstop sleeve 72 disengages from the clamping groove 53, and will not interfere with the first core-pulling insert 41 moving to the right.

[0067] Example 2

[0068] On the basis of embodiment 1, the following structure is also included:

[0069] In some embodiments, a first slot 22 is provided through the first slider 21 and the main slider 2, the first slot 22 extends in the third direction, a second main slider 2 is provided above the main slider 2, and a linkage plate 9 is inserted through the first slots 22 of the two main sliders 2;

[0070] like Figure 2 and Figure 7 As shown, when the projection area of ​​the core pulling component 4 along the first direction is too large, two supporting points are required. At this time, a second main slider 2 can be arranged above the main slider 2, and the left end of the second main slider 2 is also provided with the first connecting component 3, that is, the two first connecting components 3 have two third connecting rods 33, and the two third connecting rods 33 are connected to the second core pulling insert 42 in the core pulling component 4 away from the end of the main slider 2, and are inserted into the two first slots 22 through the linkage plate 9 to achieve the purpose of synchronously pushing the two main sliders 2, and thus no matter how large the projection area of ​​the core pulling component 4 along the first direction is, it can be positioned by this device.

[0071] In some embodiments, in order to ensure the stability of the second main slider 2, the second outer shell 1 is mounted outside the second main slider 2, and two clamping assemblies 8 are provided. The first connecting plate 13 of the second outer shell 1 is clamped by the two clamping assemblies 8 to ensure the stability of the second outer shell 1, thereby ultimately achieving the purpose of maintaining the main slider 2. In addition, after the second main slider 2 and the second outer shell 1 are installed, the use process is the same as that in Example 1, and will not be repeated here.

[0072] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0073] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0074] The above are only preferred embodiments of the present application and are 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 positioning structure for a core-pulling static mold, characterized in that: include: An outer shell (1) has a first space inside and extends in a first direction, and second slide grooves (12) are provided through two side walls of the outer shell (1) along a second direction, and the first direction and the second direction are perpendicular to each other; A main slider (2) is arranged in the first space and can move along the first direction. Along the first direction, one end of the main slider (2) is connected to a core-pulling member (4) via a first connecting assembly (3). The other end of the main slider (2) is provided with a second connecting rod (51). An adjusting groove (52) is provided in the middle of the second connecting rod (51) at a position corresponding to the second slide groove (12). A backstop assembly (7) passes through the two second slide grooves (12) and the adjustment groove (52), and when the main slider (2) is located at the end of the outer shell (1) close to the core-pulling member (4), the backstop assembly (7) is used to limit the main slider (2) from moving along the first direction toward the side away from the core-pulling member (4); A driving assembly (6) is arranged at the end of the second connecting rod (51) away from the main sliding block (2), and is used for driving the main sliding block (2) to move along the first direction.

2. The positioning structure of the core-pulling static mold according to claim 1 is characterized in that: The anti-retraction assembly (7) comprises an anti-retraction rod (71) penetrating the two second slide grooves (12) and the adjustment groove (52); the direction of the axis extension line of the anti-retraction rod (71) is the second direction; a anti-retraction sleeve (72) is sleeved on the middle part of the anti-retraction rod (71); a clamping groove (53) is provided at the end of the adjustment groove (52) away from the core-pulling member (4); the diameter of the anti-retraction rod (71), the width of the adjustment groove (52) along the third direction, the diameter of the anti-retraction sleeve (72) and the inner diameter of the clamping groove (53) increase successively; and the third direction, the second direction and the first direction are perpendicular to each other.

3. The positioning structure of the core-pulling static mold according to claim 2 is characterized in that: Both ends of the stop rod (71) are sleeved with limit plates (73); when one of the limit plates (73) is in contact with the outer surface of the outer shell (1), the stop sleeve (72) is located inside the clamping groove (53); when the other limit plate (73) is in contact with the outer surface of the outer shell (1), the stop sleeve (72) is located on one side of the second connecting rod (51).

4. The positioning structure of the core-pulling static mold according to claim 3 is characterized in that: The outer shell (1) has a first slide groove (11) at both ends along the third direction, the main slide block (2) has a first slide block (21) at both ends along the third direction, the two side walls of the first slide block (21) along the second direction are in contact with the inner wall of the first slide groove (11), the main slide block (2) has a second slide block (23) at both ends along the second direction, the two side walls of the second slide block (23) along the third direction are in contact with the inner wall of the second slide groove (12), and the extension direction of the first slide groove (11) and the second slide groove (12) are both the first direction.

5. The positioning structure of the core-pulling static mold according to claim 4 is characterized in that: The side wall of the outer shell (1) is provided with an early warning component, which is used to give an early warning when the function of the anti-retraction component (7) fails.

6. The positioning structure of the core-pulling static mold according to claim 5 is characterized in that: The early warning component includes a warning light (24) arranged on the surface of the outer shell (1); a push switch (25) is provided on the surface of the outer shell (1) corresponding to the second slide groove (12) near the core pulling part (4); the input end of the warning light (24) is electrically connected to the output end of the push switch (25); the input end of the push switch (25) is electrically connected to the output end of the mains; a bending rod (26) is provided near the end of the push switch (25) of the second slider (23); when the stop sleeve (72) is located inside the clamping groove (53), the bending rod (26) moves away from the end of the second slider (23) to squeeze and turn on the push switch (25).

7. The positioning structure of the core-pulling static mold according to claim 1 is characterized in that: A bottom plate (10) is provided below the outer shell (1), and two studs (101) are provided on the bottom plate (10) and are distributed along the second direction on both sides of the outer shell (1). A clamping assembly (8) is installed on the two studs (101), and the clamping assembly (8) is used to apply a clamping force to the top end of the outer shell (1) in the direction of the bottom plate (10).

8. The positioning structure of the core-pulling static mold according to claim 7, characterized in that: A first connecting plate (13) is provided at the top of the outer shell (1) at a position corresponding to the two studs (101); each stud (101) passes through the corresponding first connecting plate (13); each stud (101) is sleeved with a threaded external gear (81); the bottom end of each external gear (81) abuts against the top end of the first connecting plate (13); an internal gear (82) is provided outside the two external gears (81); the internal gear (82) is meshingly connected with the external gear (81).

9. The positioning structure of the core-pulling static mold according to claim 1, characterized in that: The first connecting assembly (3) comprises a first connecting rod (31) connected to the main slider (2); a second slot (32) is provided at the end of the first connecting rod (31) away from the main slider (2); a third connecting rod (33) is inserted into the second slot (32); the third connecting rod (33) is connected to the core-pulling member (4) at the end away from the main slider (2); and the third connecting rod (33) is detachably connected to the first connecting rod (31).

10. The positioning structure of the core-pulling static mold according to claim 4, characterized in that: A first slot (22) is provided through the first slider (21) and the main slider (2), the first slot (22) extending in the third direction, a second main slider (2) is arranged above the main slider (2), and a linkage plate (9) is inserted through the first slots (22) of the two main sliders (2).

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