A mold device

Abstract

The present application belongs to the technical field of mould, and particularly relates to a mould device, which comprises an upper mould and a lower mould, connecting mechanisms are respectively arranged between opposite sides of the upper mould and corresponding sides of the lower mould, the connecting mechanism comprises a connecting rod, a universal connecting structure arranged between the first end of the connecting rod and the upper mould, and a connecting rod clamping structure arranged at the second end of the connecting rod, the lower mould is provided with a lower mould clamping structure, and the upper mould is provided with an upper mould clamping structure; after the upper mould and the lower mould are closed, the connecting rod clamping structure and the lower mould clamping structure are clamped to lock the upper mould and the lower mould; after the connecting rod clamping structure and the lower mould clamping structure are separated, the upper mould and the lower mould can be separated, the direction of the connecting rod and the connecting rod clamping structure is adjusted through the universal connecting structure, and after the connecting rod clamping structure and the upper mould clamping structure are clamped, the connecting mechanism can be accommodated in the upper mould. The problem of overturning during hoisting of the mould is solved, and damage to the mould and safety accidents can be avoided.

Description

Technical Field

[0001] This invention belongs to the field of mold technology, and in particular relates to a mold device. Background Technology

[0002] Currently, molds are widely used in machinery, chemical industry, transportation, instrumentation, home appliances, medical and other fields. During assembly, maintenance and transportation, they need to be lifted by hoisting equipment before related operations can be carried out. Since the upper and lower molds of the mold are movable, they are mainly fixed by binding during hoisting. However, during the hoisting process, it is easy for the mold to flip over, which can lead to mold damage and safety accidents. Summary of the Invention

[0003] The purpose of this invention is to provide a mold device that solves the problem of mold overturning during hoisting, thereby preventing damage to the mold and safety accidents.

[0004] This invention discloses a mold device, which includes an upper mold and a lower mold. Connecting mechanisms are respectively provided between opposite sides of the upper mold and corresponding sides of the lower mold. Each connecting mechanism includes a connecting rod, a universal joint structure between a first end of the connecting rod and the upper mold, and a connecting rod locking structure at a second end of the connecting rod. The lower mold has a lower mold locking structure for locking with the connecting rod locking structure, and the upper mold has an upper mold locking structure for locking with the connecting rod locking structure. After the upper mold and the lower mold are closed, locking the connecting rod locking structure with the lower mold locking structure locks the upper mold and the lower mold together. After the connecting rod locking structure is separated from the lower mold locking structure, the upper mold and the lower mold can be separated. The direction of the connecting rod and the connecting rod locking structure can be adjusted by the universal joint structure, and locking the connecting rod locking structure with the upper mold locking structure allows the connecting mechanism to be housed within the upper mold.

[0005] As an improvement, the upper mold is provided with a mounting groove corresponding to the connecting mechanism, and an upper mold connecting groove communicating with the mounting groove is provided on the side of the mounting groove near the lower mold; the universal connection structure includes a rotating shaft rotatably installed in the mounting groove in the horizontal direction, and a connecting shaft rotatably installed in the rotating shaft in the vertical direction of the rotating shaft, the connecting shaft being provided corresponding to the upper mold connecting groove, and the first end of the connecting rod being hinged to the connecting shaft.

[0006] As an improvement, the connecting rod locking structure is a locking rod located at the second end of the connecting rod, the locking rod being perpendicular to the connecting rod; the lower mold locking structure includes a locking groove located horizontally in the lower mold, and a lower mold connecting groove located near the upper mold and communicating with the locking groove, the lower mold connecting groove being directly opposite the upper mold connecting groove; the upper mold locking structure includes a vertical receiving groove spaced horizontally from the mounting groove, and a horizontal receiving groove connecting the mounting groove and the vertical receiving groove, the depth of the mounting groove being greater than the depth of the horizontal receiving groove; after the upper mold and the lower mold are closed, the locking rod is locked into the locking groove to achieve locking; after the locking rod is disengaged from the locking groove, the upper mold and the lower mold can be separated, and the direction of the connecting rod and the locking rod can be adjusted by the rotating shaft and the connecting shaft to respectively house the connecting rod and the locking rod in the horizontal receiving groove and the vertical receiving groove.

[0007] As an improvement, a lower mold magnetic attractor is provided at the bottom of the snap-fit ​​groove, an upper mold magnetic attractor is provided at the bottom of the vertical receiving groove, and a corresponding locking rod magnetic attractor is provided on the locking rod.

[0008] As an improvement, a clearance groove communicating with the snap-fit ​​groove is provided on the side of the snap-fit ​​groove away from the upper mold, and the clearance groove is arranged opposite to the lower mold connecting groove.

[0009] As an improvement, the vertical receiving groove extends vertically through the upper template of the upper mold, with the upper end of the groove located on the upper side of the upper template and the lower end located on the lower side of the upper template.

[0010] As an improvement, the connecting shaft includes a shaft body, a hinge joint disposed at a first end of the shaft body, and an outer retaining ring disposed around the first end of the shaft body, and a fastener disposed at a second end of the shaft body; the rotating shaft is provided with a mounting hole disposed radially along the rotating shaft, and a recessed area is respectively provided on the outer side of the rotating shaft at both ends of the mounting hole, the shaft body passes through the mounting hole, and the outer retaining ring and the fastener are respectively disposed inside the recessed area on the corresponding side.

[0011] As an improvement, the connecting rod is configured as a tube body, with connecting lugs spaced apart at the tube opening near the rotating shaft, and an inner retaining ring at the tube opening away from the rotating shaft; the locking rod is connected to a plug rod inserted into the tube body, and an elastic buffer mechanism is provided between the plug rod and the tube body.

[0012] As an improvement, the plug rod is configured as a threaded rod; the elastic buffer mechanism includes a slider that is slidably mounted inside the tube body along the axial direction, the slider and the tube body do not rotate axially, the threaded rod is threadedly connected to the slider, and also includes an elastic telescopic component of the threaded rod fitted between the slider and the inner retaining ring.

[0013] As an improvement, the tube body is configured as a square tube, and the slider is a square block adapted to the internal shape of the tube body; or, the tube body is configured as a circular tube, and the slider is a circular block adapted to the internal shape of the tube body, with a sliding guide structure provided between the circular block and the inner wall of the circular tube.

[0014] Due to the adoption of the above technical solution, the mold device of the present invention includes an upper mold and a lower mold. A connecting mechanism is provided between the opposite sides of the upper mold and the corresponding sides of the lower mold. The connecting mechanism includes a connecting rod, a universal connecting structure between the first end of the connecting rod and the upper mold, and a connecting rod locking structure at the second end of the connecting rod. The lower mold is provided with a lower mold locking structure for locking with the connecting rod locking structure, and the upper mold is provided with an upper mold locking structure for locking with the connecting rod locking structure. After the upper mold and the lower mold are closed, locking the connecting rod locking structure with the lower mold locking structure can lock the upper mold and the lower mold together. After the connecting rod locking structure is separated from the lower mold locking structure, the upper mold and the lower mold can be separated. The direction of the connecting rod and the connecting rod locking structure can be adjusted by the universal connecting structure. After locking the connecting rod locking structure with the upper mold locking structure, the connecting mechanism can be housed in the upper mold.

[0015] Before hoisting, the upper and lower molds are closed, and the connecting rod locking structure is locked to the lower mold locking structure to keep the upper and lower molds in a closed state. This prevents the upper and lower molds from shaking during hoisting and causing them to overturn, thus solving the problem of mold overturning during hoisting and avoiding damage to the molds and safety accidents.

[0016] After hoisting is completed, the connecting rod locking structure is separated from the lower mold locking structure, and the upper mold and lower mold can be separated. The direction of the connecting rod and the connecting rod locking structure is adjusted by the universal connection structure. After the connecting rod locking structure is locked with the upper mold locking structure, the connecting mechanism can be stored in the upper mold. Attached Figure Description

[0017] Figure 1 This is a side view of the mold device according to an embodiment of the present invention when the upper and lower molds are in a closed state;

[0018] Figure 2 This is a cross-sectional view of the mold device according to an embodiment of the present invention when the upper and lower molds are in a closed state;

[0019] Figure 3This is a side view of the mold device according to an embodiment of the present invention when the upper and lower molds are in the open state;

[0020] Among them, 10, upper template; 11, mounting groove; 12, upper mold connecting groove; 13, vertical receiving groove; 14, horizontal receiving groove; 20, upper mold core; 30, lower template; 31, snap-fit ​​groove; 32, lower mold connecting groove; 33, clearance groove; 40, lower mold core; 50, rotating shaft; 51, connecting shaft; 52, outer retaining ring; 53, fastener; 54, first mounting shaft; 55, hexagon socket head cap bolt; 60, connecting rod; 61, connecting ear; 62, inner retaining ring; 70, locking rod; 71, plug-in rod; 72, nut; 81, slider; 82, elastic telescopic component; 91, lower mold magnetic component; 92, upper mold magnetic component. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 and not intended to limit the invention.

[0022] Figure 1 Hezhi Figure 3 This is a schematic diagram of the mold device according to an embodiment of the present invention, wherein, Figure 1 This diagram shows a side view of the mold device according to an embodiment of the present invention when the upper and lower molds are in a closed state. Figure 2 This diagram shows a cross-sectional view of the mold device according to an embodiment of the present invention when the upper and lower molds are in a closed state. Figure 3 The figure shows a side view of the mold device according to an embodiment of the present invention with the upper and lower molds in the open state. For ease of description, only the parts relevant to the embodiment of the present invention are shown in the figure.

[0023] It should be noted that if the directional indications (e.g., up, down, forward, backward, etc.) involved in the embodiments of the present invention are only used to explain the relative positional relationship between the components in a certain specific posture, the directional indications will also change accordingly if the specific posture changes; if the descriptions of "first", "second", etc. involved in the embodiments of the present invention are used for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.

[0024] Depend on Figure 1 , Figure 2 and Figure 3As can be seen, the mold device of this embodiment includes an upper mold and a lower mold. A connecting mechanism is provided between the opposite sides of the upper mold and the corresponding sides of the lower mold. The connecting mechanism includes a connecting rod 60, a universal connecting structure between the first end of the connecting rod 60 and the upper mold, and a connecting rod locking structure at the second end of the connecting rod 60. The lower mold is provided with a lower mold locking structure for locking with the connecting rod locking structure, and the upper mold is provided with an upper mold locking structure for locking with the connecting rod locking structure. After the upper mold and the lower mold are closed, locking the connecting rod locking structure with the lower mold locking structure can lock the upper mold and the lower mold together. After the connecting rod locking structure is separated from the lower mold locking structure, the upper mold and the lower mold can be separated. The direction of the connecting rod 60 and the connecting rod locking structure can be adjusted by the universal connecting structure. After locking the connecting rod locking structure with the upper mold locking structure, the connecting mechanism can be housed in the upper mold.

[0025] Before hoisting, the upper and lower molds are closed, and the connecting rod locking structure is locked to the lower mold locking structure to keep the upper and lower molds in a closed state. This prevents the upper and lower molds from shaking during hoisting and causing them to overturn, thus solving the problem of mold overturning during hoisting and avoiding damage to the molds and safety accidents.

[0026] After hoisting is completed, the connecting rod locking structure is separated from the lower mold locking structure, and the upper mold and lower mold can be separated. The direction of the connecting rod 60 and the connecting rod locking structure is adjusted by the universal connection structure. After the connecting rod locking structure is locked with the upper mold locking structure, the connecting mechanism can be stored in the upper mold.

[0027] In this embodiment of the invention, the upper mold is provided with a mounting groove 11 corresponding to the connecting mechanism, and an upper mold connecting groove 12 connected to the mounting groove 11 is provided on the side of the mounting groove 11 near the lower mold; the universal connection structure includes a rotating shaft 50 rotatably installed in the mounting groove 11 in the horizontal direction, and a connecting shaft 51 rotatably installed in the rotating shaft 50 in the vertical direction of the rotating shaft 50. The connecting shaft 51 is provided corresponding to the upper mold connecting groove 12, and the first end of the connecting rod 60 is hinged to the connecting shaft 51, which can realize the universal connection between the connecting rod 60 and the upper mold, and facilitate the adjustment of the direction of the connecting rod 60.

[0028] Specifically, the connecting rod locking structure is a locking rod 70 located at the second end of the connecting rod 60, which is perpendicular to the connecting rod 60; the lower mold locking structure includes a locking groove 31 located horizontally in the lower mold, and a lower mold connecting groove 32 located near the upper mold and communicating with the locking groove 31, with the upper mold connecting groove 12 and the lower mold connecting groove 32 facing each other; the upper mold locking structure includes a vertical receiving groove 13 spaced horizontally from the mounting groove 11, communicating with The mounting groove 11 and the horizontal receiving groove 14 of the vertical receiving groove 13 are connected. The depth of the mounting groove 11 is greater than the depth of the horizontal receiving groove 14. After the upper mold and the lower mold are closed, the locking rod 70 is inserted into the snap-fit ​​groove 31 to achieve locking. After the locking rod 70 is disengaged from the snap-fit ​​groove 31, the upper mold and the lower mold can be separated. The direction of the connecting rod 60 can be adjusted by the rotating shaft 50 and the connecting shaft 51 to store the connecting rod 60 and the locking rod 70 in the horizontal receiving groove 14 and the vertical receiving groove 13, respectively.

[0029] For ease of understanding, the closing and separating of the upper and lower molds are explained below with reference to the accompanying drawings:

[0030] Before hoisting, the upper and lower molds are closed. Since the connecting mechanism's rotating shaft 50 is horizontally mounted inside the mounting groove 11, and the connecting shaft 51 is vertically mounted on the rotating shaft 50, and the connecting rod 60 is hinged to the connecting shaft 51, the direction of the connecting rod 60 can be adjusted. The connecting rod 60 is adjusted to be opposite to the upper mold connecting groove 12 and the lower mold connecting groove 32. The connecting rod 60 is then inserted into the upper mold connecting groove 12 and the lower mold connecting groove 32, and the locking rod 70 is inserted into the locking groove 31 to achieve locking, keeping the upper and lower molds in a closed state. Figure 1 As shown, this is to prevent the upper and lower molds from swaying during hoisting, which could cause them to overturn.

[0031] After hoisting is completed, the locking rod 70 is disengaged from the locking groove 31, allowing the upper and lower molds to separate. The directions of the connecting rod 60 and locking rod 70 are adjusted by rotating the rotating shaft 50 and connecting shaft 51, aligning the direction of the connecting rod 60 with the horizontal receiving groove 14 and the direction of the locking rod 70 with the vertical receiving groove 13. Then, the connecting rod 60 and locking rod 70 are respectively inserted into the horizontal receiving groove 14 and the vertical receiving groove 13 for storage. Figure 3 As shown;

[0032] Meanwhile, since the depth of the mounting groove 11 is greater than the depth of the horizontal receiving groove 14, the rotating shaft 50 is installed inside the mounting groove 11 in a horizontal direction. The connecting mechanism can be completely hidden inside the upper mold and will not be exposed, thus avoiding interference with the normal operation of the mold device.

[0033] In this embodiment of the invention, to prevent the locking rod 70 from accidentally detaching from the snap-fit ​​groove 31 and the vertical receiving groove 13, a lower mold magnetic suction member 91 is provided at the bottom of the snap-fit ​​groove 31, an upper mold magnetic suction member 92 is provided at the bottom of the vertical receiving groove 13, and a corresponding locking rod magnetic suction member is provided on the locking rod 70. When the locking rod 70 is snapped into the snap-fit ​​groove 31, a magnetic attraction force is generated between the locking rod magnetic suction member and the lower mold magnetic suction member 91. When the locking rod 70 is snapped into the vertical receiving groove 13, a magnetic attraction force is generated between the locking rod magnetic suction member and the upper mold magnetic suction member 92, which can improve the safety factor.

[0034] Specifically, the lower mold magnetic chuck 91, the upper mold magnetic chuck 92, and the locking rod magnetic chuck are magnets. Of course, the locking rod magnetic chuck can also be a magnet, and the lower mold magnetic chuck 91 and the upper mold magnetic chuck 92 can be magnetic metal blocks.

[0035] In this embodiment of the invention, in order to facilitate the locking rod 70 to disengage more easily from the locking groove 31, a clearance groove 33 communicating with the locking groove 31 is provided on the side of the locking groove 31 away from the upper mold. The clearance groove 33 is positioned opposite to the lower mold connecting groove 32.

[0036] Specifically, the upper mold includes an upper template 10 and an upper mold core 20 located on the lower side of the upper template 10; the lower mold includes a lower template 30 and a lower mold core 40 located on the upper side of the lower template 30. The structures of the upper and lower molds are known technologies, and their specific structures will not be described in detail here. Typically, the mounting groove 11, the vertical receiving groove 13, the horizontal receiving groove 14, and the upper mold connecting groove 12 are located on the side surface of the upper template 10 of the upper mold, while the snap-fit ​​groove 31, the lower mold connecting groove 32, and the clearance groove 33 are located on the side surface of the lower template 30 of the lower mold.

[0037] To make it easier to remove the locking rod 70 from the vertical receiving groove 13, the vertical receiving groove 13 extends vertically through the upper template 10, with the upper end of the groove 13 located on the upper side of the upper template 10 and the lower end of the groove 13 located on the lower side of the upper template 10.

[0038] In embodiments of the present invention, such as Figure 2 As shown, the connecting rod 60 is configured as a tube body, with connecting ears 61 spaced apart at the tube opening near the rotating shaft 50, and an inner retaining ring 62 at the tube opening away from the rotating shaft 50; the locking rod 70 is connected to a plug rod 71 inserted into the tube body, and an elastic buffer mechanism is provided between the plug rod 71 and the tube body, which can play a buffering role when the connecting mechanism is connected between the upper mold and the lower mold.

[0039] Specifically, the insertion rod 71 is configured as a threaded rod; the elastic buffer mechanism includes a slider 81 slidably mounted inside the tube body along the axial direction. The slider 81 does not rotate axially with the tube body. The threaded rod is threadedly connected to the slider 81. It also includes an elastic telescopic member 82 of the threaded rod, typically a spring, fitted between the slider 81 and the inner retaining ring 62. Rotating the locking rod 70 causes the threaded rod to rotate synchronously. Because the slider 81 can slide along the axial direction of the tube body without axial rotation, the rotation of the threaded rod adjusts the position of the slider 81, thereby placing the elastic telescopic member 82 in different compression states to adjust the buffer force.

[0040] Furthermore, an anti-disengagement structure is provided at the end of the plug-in rod 71 away from the locking rod 70. Typically, the anti-disengagement structure is a nut 72.

[0041] Typically, the tube body is a square tube, and the slider 81 is a square block that matches the internal shape of the tube body. Of course, the tube body can also be a circular tube, and the slider 81 is a circular block that matches the internal shape of the tube body. A sliding guide structure is provided between the circular block and the inner wall of the circular tube. The sliding guide structure includes protrusions respectively provided on opposite sides of the circular block and a groove provided on the inner wall of the circular tube along the axial direction of the tube body. Sliding is achieved through the cooperation of the protrusions and the groove, and axial rotation between the slider 81 and the tube body is prevented.

[0042] In some other embodiments, the plug rod 71 may also be configured as a smooth rod, with an anti-detachment structure provided at the end of the plug rod 71 away from the locking rod 70. An elastic telescopic member 82 is fitted on the smooth rod between the anti-detachment structure and the inner retaining ring 62. Typically, the anti-detachment structure is configured as a pin passing through the smooth rod.

[0043] In embodiments of the present invention, such as Figure 1 , Figure 2 and Figure 3 As shown, the connecting shaft 51 includes a shaft body, a hinge joint at the first end of the shaft body, and an outer retaining ring 52 surrounding the first end of the shaft body. A fastener 53 is provided at the second end of the shaft body. The rotating shaft 50 has a mounting hole arranged radially along the rotating shaft 50. The shaft body of the connecting shaft 51 passes through the mounting hole, and the connecting shaft 51 is rotatably mounted by the outer retaining ring 52 and the fastener 53. Specifically, the fastener 53 is a nut or a snap ring.

[0044] Specifically, recessed areas are provided on the outer side of the rotating shaft 50 at both ends of the mounting hole to accommodate the outer retaining ring 52 and the fastener 53, which can prevent the outer retaining ring 52 and the fastener 53 from protruding from the outer side of the rotating shaft 50.

[0045] like Figure 2As shown, the mounting groove 11 is configured as an elongated groove that extends horizontally, and the horizontal receiving groove 14 is connected to the end of the elongated groove near the vertical receiving groove 13.

[0046] Specifically, a first mounting shaft 54 ​​and a shaft connection hole are respectively provided at both ends of the rotating shaft 50. A template connection hole communicating with the elongated groove is provided on the upper template 10 at the corresponding position of the shaft connection hole. A second mounting shaft is inserted and fixedly installed in the shaft connection hole at the template connection hole. Typically, the second mounting shaft is an internal hex bolt 55 and the shaft connection hole is a threaded hole for easy installation.

[0047] The above description is merely some embodiments of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mold apparatus, comprising an upper mold and a lower mold, characterized in that, A connecting mechanism is provided between the opposite sides of the upper mold and the corresponding sides of the lower mold. The connecting mechanism includes a connecting rod, a universal connecting structure between the first end of the connecting rod and the upper mold, and a connecting rod locking structure at the second end of the connecting rod. The lower mold is provided with a lower mold locking structure for locking with the connecting rod locking structure, and the upper mold is provided with an upper mold locking structure for locking with the connecting rod locking structure. After the upper mold and the lower mold are closed, locking the connecting rod locking structure with the lower mold locking structure can lock the upper mold and the lower mold together. After the connecting rod locking structure is separated from the lower mold locking structure, the upper mold and the lower mold can be separated. The direction of the connecting rod and the connecting rod locking structure can be adjusted by the universal connecting structure. After locking the connecting rod locking structure with the upper mold locking structure, the connecting mechanism can be housed in the upper mold. The upper mold is provided with an installation groove corresponding to the connecting mechanism, and an upper mold connecting groove communicating with the installation groove is provided on the side of the installation groove near the lower mold; the universal connection structure includes a rotating shaft rotatably installed in the installation groove in the horizontal direction, and a connecting shaft rotatably installed in the rotating shaft in the vertical direction of the rotating shaft, the connecting shaft being provided corresponding to the upper mold connecting groove, and the first end of the connecting rod being hinged to the connecting shaft; The connecting rod locking structure is a locking rod located at the second end of the connecting rod, and the locking rod is perpendicular to the connecting rod. The lower mold locking structure includes a locking groove located horizontally in the lower mold, and a lower mold connecting groove located near the upper mold and communicating with the locking groove. The lower mold connecting groove and the upper mold connecting groove are directly opposite each other. The upper mold locking structure includes a vertical receiving groove spaced horizontally from the mounting groove, and a horizontal receiving groove connecting the mounting groove and the vertical receiving groove. The depth of the mounting groove is greater than the depth of the horizontal receiving groove. After the upper mold and the lower mold are closed, the locking rod is locked into the locking groove. After the locking rod is disengaged from the locking groove, the upper mold and the lower mold can be separated. The direction of the connecting rod and the locking rod can be adjusted by the rotating shaft and the connecting shaft to accommodate the connecting rod and the locking rod in the horizontal receiving groove and the vertical receiving groove, respectively. The connecting shaft includes a shaft body, a hinge joint located at a first end of the shaft body, and an outer retaining ring surrounding the first end of the shaft body. A fastener is located at a second end of the shaft body. The rotating shaft has a mounting hole arranged radially along the rotating shaft. Recessed areas are respectively provided on the outer side of the rotating shaft at both ends of the mounting hole. The shaft body passes through the mounting hole, and the outer retaining ring and the fastener are respectively located inside the recessed areas on the corresponding sides.

2. The mold device according to claim 1, characterized in that, A lower mold magnetic attractor is provided at the bottom of the snap-fit ​​groove, an upper mold magnetic attractor is provided at the bottom of the vertical receiving groove, and a corresponding locking rod magnetic attractor is provided on the locking rod.

3. The mold device according to claim 1, characterized in that, An avoidance groove communicating with the snap-fit ​​groove is provided on the side of the snap-fit ​​groove away from the upper mold, and the avoidance groove is positioned opposite the lower mold connection groove.

4. The mold apparatus according to claim 1, characterized in that, The vertical receiving groove extends vertically through the upper template of the upper mold, with the upper end of the groove located on the upper side of the upper template and the lower end located on the lower side of the upper template.

5. The mold apparatus according to any one of claims 1 to 4, characterized in that, The connecting rod is configured as a tube body, with connecting lugs spaced apart at the tube opening near the rotating shaft, and an inner retaining ring at the tube opening away from the rotating shaft; the locking rod is connected to a plug rod inserted into the tube body, and an elastic buffer mechanism is provided between the plug rod and the tube body.

6. The mold apparatus according to claim 5, characterized in that, The plug rod is configured as a threaded rod; the elastic buffer mechanism includes a slider that is slidably installed inside the tube body along the axial direction, the slider and the tube body will not rotate axially, the threaded rod is threadedly connected to the slider, and also includes an elastic telescopic component of the threaded rod fitted between the slider and the inner retaining ring.

7. The mold apparatus according to claim 6, characterized in that, The tube body is configured as a square tube, and the slider is a square block adapted to the internal shape of the tube body; or, the tube body is configured as a circular tube, and the slider is a circular block adapted to the internal shape of the tube body, with a sliding guide structure provided between the circular block and the inner wall of the circular tube.

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