New energy motor iron core forming mold matching device and mold matching method thereof

Abstract

The invention provides a new energy motor iron core forming mold matching device and a mold matching method thereof, and relates to the technical field of mold matching devices. The mounting mechanism comprises a frame body and a sliding groove, and the frame body is of a rectangular structure; the sliding grooves are formed in the upper ends of the two sides of the frame body. During use, the positions of the two sets of fixing plates on the sliding frame are adjusted according to the sizes of the two sets of molds, then the adjusting plates abut against the lower molds, the rotating frame covers the outer ends of the two sets of upper molds, and the two sets of upper molds can be fixed by moving the sliding frame. The two groups of fixing plates at different positions can lift two groups of upper molds with different sizes, so that the two groups of molds can be matched simultaneously, the mold matching efficiency can be effectively improved, and the problems that a mold matching device can only carry out lifting and mold matching detection on one group of molds at a time, the detection efficiency is relatively low, and the detection cost is relatively high are solved. And the mold is not suitable for large-scale mold matching.

Description

Technical Field

[0001] The present invention relates to the technical field of mold matching devices, and in particular to a mold matching device and a mold matching method for a new energy motor core forming die. Background Art

[0002] The production of the iron core of the new energy motor requires the help of molds. When the factory produces the mold, it is necessary to carry out the mold matching process for the iron core forming mold, that is, to make the parting surfaces of the upper and lower molds overlap well. The purpose is to seal the glue to prevent the plastic product from having burrs; mold matching is to apply red lead on the lower mold, and then close the upper and lower molds. The small mold directly knocks the fixed plate of the upper mold to print the red lead on the lower mold on the upper mold. The presence of red lead proves that it fits well, and the absence of red lead proves that there is still a gap. The mold that has undergone the mold matching process can improve the yield rate of the motor core production.

[0003] However, there are some layout problems in the design of the current mold matching device. When matching the mold, the upper mold and the lower mold need to be hoisted and assembled. After the assembly, the upper mold needs to be lifted from the lower mold, and then the upper mold needs to be removed from the lifting equipment. If the matching degree of the upper mold is not ideal at this time, it needs to be polished and then hoisted and assembled with a lifting equipment for detection. This operation is more troublesome. Secondly, the mold matching device can only perform hoisting and assembly detection on one group of molds at a time. This detection efficiency is relatively low and is not suitable for large-scale mold matching. Summary of the invention

[0004] In response to the above problems, one purpose of the present application is to remedy these shortcomings, and more specifically to provide a new energy motor core forming mold matching device and a mold matching method, which can avoid frequent lifting of the mold, and can also lift and assemble two groups of molds at one time, thereby improving the efficiency of mold matching.

[0005] In a first aspect of the present disclosure, a die matching device and a die matching method for a new energy motor core forming die are provided, which specifically include: a mounting mechanism; the mounting mechanism includes a frame and a sliding groove, the frame is a rectangular structure; the sliding groove is opened at the upper ends of both sides of the frame; the mounting mechanism is provided with an adjustment mechanism, the mounting frame of the adjustment mechanism is arranged at the upper end of the rear side of the frame, and the bottom front side of the mounting frame is plugged with the rear groove in the frame, and the fixing hole in the mounting frame is plugged with the circular rod at the bottom of the reference plate at the rear side of the frame; the adjustment mechanism is provided with a rotating mechanism, the rotating frame of the rotating mechanism is arranged at the front end of the mounting frame, and the connecting groove in the rotating frame is rotatably matched with the circular plate-shaped structure at the front end of the base inside the mounting frame, and the plug rod on the moving part inside the rotating frame is plugged with the docking hole in the base; the rotating mechanism is provided with a sliding mechanism, the sliding mechanism includes a sliding frame and a fixed plate, the sliding frame is slidably mounted on the rotating frame, and the screw rod rotatably mounted in the sliding frame is threadedly connected with the rotating frame; the fixed plate is movably mounted on the outer end of the sliding frame by the screw rod, and the fixed plate is located on the inner side of the rotating frame.

[0006] Preferably, the mounting mechanism comprises: an adjustment plate and a push rod; the adjustment plate is slidably mounted on the sliding groove; the push rod is fixedly mounted on the front side of the push rod, and the push rod passes through the front side of the frame.

[0007] Preferably, the mounting mechanism comprises: a rear slot and a reference plate; the rear slot is opened at the inner end of the rear side of the frame; the reference plate is arranged at the upper end of the rear side of the frame, and the round rod at the bottom of the reference plate is inserted into the rear slot.

[0008] Preferably, the adjustment mechanism comprises: a mounting frame and a fixing hole; the mounting frame is a rectangular structure, and a screw controlled by a motor is rotatably installed inside the mounting frame; the fixing holes are symmetrically arranged on the bottom front side of the mounting frame.

[0009] Preferably, the adjustment mechanism comprises: a base and a docking hole; the base is slidably mounted inside the mounting frame, and the base is slidably matched with a screw in the mounting frame; the docking holes are symmetrically arranged on both sides of the inside of the base.

[0010] Preferably, the adjustment mechanism includes: a lifting plate and a limit member; the lifting plate is slidably mounted inside the mounting frame, and the lifting plate is controlled by a screw in the mounting frame, the lifting plate is located at the upper end of the base, and two groups of circular through holes are provided inside the lifting plate; the limit member is disposed on the rear side of the lifting plate and the base, and the circular rod at the outer end of the limit member is respectively inserted into the docking hole and the circular hole in the lifting plate.

[0011] Preferably, the rotating mechanism comprises: a rotating frame and a connecting slot; the rotating frame is a rectangular structure; and the connecting slot is opened at the middle position of the rear side of the rotating frame.

[0012] Preferably, the rotating mechanism comprises: a moving member and an insertion rod; the moving member is slidably installed in the connecting groove through an elastic member; the insertion rod is symmetrically arranged on both sides of the outside of the moving member, and the insertion rod passes through the rear side of the rotating frame.

[0013] Preferably, the rotating mechanism comprises: side grooves and a top plate; the side grooves are arranged on both sides of the upper end of the rotating frame; the top plate is arranged on the upper end of the rotating frame, and both ends of the top plate are engaged with the side grooves.

[0014] Preferably, the die matching method of the die matching device for the new energy motor core forming die includes: 1) Place the mold on the frame, with the lower mold against the reference plate and the adjustment plate; 2) Place the upper mold against the top plate on the rotating frame, then move the sliding frame and clamp the upper mold with the fixed plate; 3) Separate the upper mold from the lower mold by moving the base upwards, then apply red on the lower mold, and then move the base to assemble them; 4) Hammer the upper mold to make it fit better on the lower mold. After hammering, lift the upper mold and turn the rotating frame to flip the upper mold and check the red coverage on the outside of the upper mold.

[0015] 1. The present invention provides an adjustment mechanism and a rotating mechanism, wherein a base is slidably installed inside a mounting frame, a rotating frame is rotatably provided on the front side of the base, a moving part with an insertion rod is slidably installed in a connecting groove in the rotating frame, and the insertion rod is plugged into and matched with a docking hole. When it is necessary to inspect the distribution of red on the upper mold, the upper mold can be separated from the lower mold by moving the rotating frame upward, and the moving part is slid to separate the insertion rod from the docking hole. At this time, the rotating frame can be rotated to make the upper mold face upward, and then the upper mold can be fixed by plugging in the insertion rod. In this way, not only can the distribution of red be checked without disassembling the upper mold, but the mold can also be trimmed on the device without frequently disassembling and assembling the mold from the lifting equipment.

[0016] 2. The present invention provides an installation mechanism and a sliding mechanism, opens two groups of sliding grooves on the frame, and slides and installs an adjustment plate in each group of sliding grooves, installs the sliding frame in the rotating frame by means of screws, and installs two groups of fixed plates on the sliding frame by means of screws, so that the fixed plates are located on the inner side of the rotating frame. When in use, the positions of the two groups of fixed plates on the sliding frame are adjusted according to the sizes of the two groups of molds, and then the adjustment plate is used to support the lower mold, and the rotating frame is covered to the outer ends of the two groups of upper molds. By moving the sliding frame, the two groups of fixed plates at different positions can lift off the two groups of upper molds of different sizes, so that the two groups of molds can be matched at the same time, which can effectively improve the efficiency of mold matching. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following drawings will provide a better understanding of the present disclosure and more clearly demonstrate the advantages of the present disclosure. The drawings described herein are for illustrative purposes only of selected embodiments, not all possible implementations, and are not intended to limit the scope of the present disclosure.

[0018] In the attached picture: Figure 1 A schematic diagram of a three-dimensional structure according to an embodiment of the present invention is shown.

[0019] Figure 2 A schematic diagram of a decomposed structure according to an embodiment of the present invention is shown.

[0020] Figure 3 A bottom view structural schematic diagram according to an embodiment of the present invention is shown.

[0021] Figure 4 A schematic diagram of a rear side connection cross-sectional structure according to an embodiment of the present invention is shown.

[0022] Figure 5 A schematic diagram of a cut-away cross-sectional structure according to an embodiment of the present invention is shown.

[0023] Figure 6 A partial cross-sectional structural schematic diagram of an adjustment mechanism according to an embodiment of the present invention is shown.

[0024] Figure 7 A schematic diagram of the connection structure of a rotating mechanism and a sliding mechanism according to an embodiment of the present invention is shown.

[0025] Figure 8 A schematic diagram of the connection structure of the adjustment mechanism and the rotation mechanism according to an embodiment of the present invention is shown.

[0026] Reference numerals list 1. Installation mechanism; 101, frame; 1011, sliding groove; 102, adjusting plate; 1021, pushing rod; 103, rear slot; 104, reference plate; 2. Adjustment mechanism; 201, mounting frame; 2011, fixing hole; 202, base; 2021, docking hole; 203, lifting plate; 204, limiting member; 3. Rotating mechanism; 301, rotating frame; 3011, connecting slot; 302, moving part; 3021, plug rod; 303, side groove; 304, top plate; 4. Sliding mechanism; 401, sliding frame; 402, fixed plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figures 1 to 8 As shown: The present invention provides a die matching device for a new energy motor core forming die and a die matching method thereof, comprising: a mounting mechanism 1; the mounting mechanism 1 comprises a frame 101 and a sliding groove 1011, the frame 101 is a rectangular structure; the sliding groove 1011 is arranged at the upper ends of both sides of the frame 101; an adjusting mechanism 2 is arranged on the mounting mechanism 1, a mounting frame 201 of the adjusting mechanism 2 is arranged at the upper end of the rear side of the frame 101, and the bottom front side of the mounting frame 201 is plugged with the rear groove 103 in the frame 101, and the fixing hole 2011 in the mounting frame 201 is plugged with the round rod at the bottom of the reference plate 104 at the rear side of the frame 101; a rotating mechanism 3 is arranged on the adjusting mechanism 2, and the rotating mechanism 3 rotates The frame 301 is arranged at the front end of the mounting frame 201, and the connecting groove 3011 in the rotating frame 301 is rotatably matched with the circular plate-shaped structure at the front end of the base 202 inside the mounting frame 201, and the insertion rod 3021 on the moving part 302 inside the rotating frame 301 is plugged into the docking hole 2021 in the base 202; a sliding mechanism 4 is provided in the rotating mechanism 3, and the sliding mechanism 4 includes a sliding frame 401 and a fixed plate 402, the sliding frame 401 is slidably installed on the rotating frame 301, and the screw rotatably installed in the sliding frame 401 is threadedly connected to the rotating frame 301; the fixed plate 402 is movably installed on the outer end of the sliding frame 401 through the screw, and the fixed plate 402 is located on the inner side of the rotating frame 301.

[0029] As the second embodiment of the present application, based on the first embodiment, Figure 4 As shown, the mounting mechanism 1 includes: an adjusting plate 102 and a push rod 1021; the adjusting plate 102 is slidably mounted on the sliding groove 1011; the push rod 1021 is fixedly mounted on the front side of the push rod 1021, and the push rod 1021 passes through the front side of the frame 101; a rear groove 103 and a reference plate 104; the rear groove 103 is opened at the inner end of the rear side of the frame 101; the reference plate 104 is arranged at the upper end of the rear side of the frame 101, and the circular rod at the bottom of the reference plate 104 is inserted into the rear groove 103.

[0030] The present application sets a rectangular frame 101, so that the mold can be placed on the frame 101; sets a rectangular sliding groove 1011, so that the adjustment plate 102 can be slidably installed on the frame 101 through the sliding groove 1011; sets a rectangular adjustment plate 102, and the position of the lower mold on the frame 101 can be adjusted by pressing the adjustment plate 102 against the lower mold; sets a cylindrical push rod 1021, and the adjustment plate 102 can be moved on the frame 101 by pushing the push rod 1021; sets a rectangular rear groove 103, and the mounting frame 201 can be installed and fixed on the frame 101 by plugging the rear groove 103 with the mounting frame 201; sets a rectangular reference plate 104, and the placement position of the lower mold on the frame 101 can be limited.

[0031] As the third embodiment of the present application, based on the first embodiment, Figure 6 and 8 As shown, the adjustment mechanism 2 includes: a mounting frame 201 and a fixing hole 2011; the mounting frame 201 is a rectangular structure, and a screw controlled by a motor is rotatably installed inside the mounting frame 201; the fixing hole 2011 is symmetrically arranged on the bottom front side of the mounting frame 201; a base 202 and a docking hole 2021; the base 202 is slidably installed inside the mounting frame 201, and the base 202 is slidably matched with the screw in the mounting frame 201; the docking hole 2021 is symmetrically arranged inside the base 202. The lifting plate 203 and the limiting member 204 are respectively provided on both sides of the lifting plate 203 and the base 202, and the circular rod at the outer end of the limiting member 204 is respectively inserted into the docking hole 2021 and the circular hole in the lifting plate 203.

[0032] The present application provides a mounting frame 201, on which a base 202 can be slidably mounted; a circular fixing hole 2011 is provided, and the mounting frame 201 can be connected and fixed to the rear slot 103 by plugging and matching the fixing hole 2011 with the circular rod at the bottom of the reference plate 104; a base 202 is provided, on which a rotating frame 301 can be rotatably mounted; a circular docking hole 2021 is provided, and the rotating frame 301 can be fixed to the base 202 by plugging and matching the docking hole 2021 with the plugging rod 3021; ​​a lifting plate 203 is provided, and after the lifting plate 203 is connected to the base 202 through the limiting member 204, the base 202 can be driven to move in the mounting frame 201 by moving the lifting plate 203; a limiting member 204 is provided, and the base 202 can be connected to the lifting plate 203 by plugging and matching the circular rod on the limiting member 204 with the lifting plate 203 and the base 202.

[0033] As the fifth embodiment of the present application, based on the first embodiment, Figure 7 and 8 As shown, the rotating mechanism 3 includes: a rotating frame 301 and a connecting groove 3011; the rotating frame 301 is a rectangular structure; the connecting groove 3011 is arranged at the middle position of the rear side of the rotating frame 301; a moving member 302 and an insertion rod 3021; ​​the moving member 302 is slidably installed in the connecting groove 3011 through an elastic member; the insertion rod 3021 is symmetrically arranged on both sides of the outside of the moving member 302, and the insertion rod 3021 passes through the rear side of the rotating frame 301; side grooves 303 and a top plate 304; the side grooves 303 are arranged on both sides of the upper end of the rotating frame 301; the top plate 304 is arranged at the upper end of the rotating frame 301, and both ends of the top plate 304 are engaged with the side grooves 303.

[0034] The present application sets a rectangular rotating frame 301, so that the upper mold inside the rotating frame 301 can be fixed; sets a connecting groove 3011, so that the rotating frame 301 can be rotatably installed on the base 202 through the connecting groove 3011; sets an annular moving part 302, and sets an insertion rod 3021 on the moving part 302, so that the rotating frame 301 can be fixed on the base 202 by plugging the insertion rod 3021 into the docking hole 2021; sets a rectangular side groove 303, so that the top plate 304 can be fixed on the rotating frame 301 by engaging the side groove 303 with the top plate 304; sets a rectangular top plate 304 to limit the position of the upper mold inside the rotating frame 301.

[0035] In the present disclosure, Figures 1 to 8 As shown, the die matching method of the die matching device for the new energy motor core forming die includes: 1) Place the mold on the frame 101, with the lower mold resting on the reference plate 104 and the adjustment plate 102; 2) The upper mold is pressed against the top plate 304 on the rotating frame 301, and then the sliding frame 401 is moved and the upper mold is clamped with the fixed plate 402; 3) Separate the upper mold from the lower mold by moving the base 202 upward, then apply red on the lower mold, and then move the base 202 to assemble them; 4) The upper mold is hammered to make it fit more closely on the lower mold. After hammering, the upper mold is lifted and the rotating frame 301 is rotated to turn the upper mold over and check the coverage of the outer red on the upper mold.

[0036] The specific usage and function of this embodiment are as follows: In the present invention, Figures 1 to 8As shown, two sets of sliding grooves 1011 are provided on the frame 101, and the adjusting plate 102 is slidably installed in the sliding grooves 1011, and the mounting frame 201 is inserted into the rear end of the frame 101, and then the reference plate 104 is inserted into the upper end of the frame 101 to fix the mounting frame 201, and the mold is placed on the frame 101, and then the rear end of the lower mold is pressed against the reference plate 104, and the adjusting plate 102 is pressed against the front side of the lower mold, and the mounting frame 201 is inserted into the rear end of the frame 101. 01, slide and install the base 202 and the lifting plate 203, insert the stopper 204 onto the base 202 and the lifting plate 203, rotate and install the rotating frame 301 at the front end of the base 202, insert the top plate 304 onto the top of the rotating frame 301, movably install the sliding frame 401 with the fixing plate 402 in the rotating frame 301, cover the rotating frame 301 to the top of the upper mold, make the upper mold abut against the top plate 304, and then move the sliding frame 401. 01, the fixed plate 402 clamps the upper mold in the rotating frame 301, and the rotating frame 301 can be lifted by moving the lifting plate 203, and the red is applied to the lower mold, and then the lifting plate 203 is moved, so that the rotating frame 301 drives the upper mold to descend, and the lower mold is spliced ​​with the upper mold, the limit piece 204 is pulled out, and then the upper mold is hammered so that the upper mold can be tightly spliced ​​with the lower mold, and the limit piece 204 is inserted back after hammering, and then the upper mold is lifted by the moving lifting plate 203, and the insertion rod 3021 is pulled out from the inside of the docking hole 2021, and the rotating frame 301 is rotated 180° and then inserted back so that the bottom surface of the upper mold faces upward, and the distribution of the red on the outside of the upper mold is observed at this time. If the distribution is not ideal, the upper mold or the lower mold can be corrected on this device, and then it is inspected by applying red, and the mold can be removed from this device after the inspection is qualified.

[0037] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0038] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0039] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A mold matching device for a new energy motor core forming mold, comprising: The mounting mechanism (1) comprises a frame (101) and a sliding groove (1011), wherein the frame (101) is a rectangular structure; the sliding groove (1011) is provided at the upper ends of both sides of the frame (101); the mounting mechanism (1) is characterized in that an adjustment mechanism (2) is provided on the mounting mechanism (1), a mounting frame (201) of the adjustment mechanism (2) is provided at the upper end of the rear side of the frame (101), and the bottom front side of the mounting frame (201) is plug-fitted with the rear groove (103) in the frame (101), and the fixing hole (2011) in the mounting frame (201) is plug-fitted with the circular rod at the bottom of the reference plate (104) on the rear side of the frame (101); the adjustment mechanism (2) is provided with a rotating mechanism (3), and a rotating frame (301) of the rotating mechanism (3) is provided on the mounting frame ( The rotating mechanism (3) is provided with a sliding mechanism (4), the sliding mechanism (4) comprising a sliding frame (401) and a fixing plate (402). The sliding frame (401) is slidably mounted on the rotating frame (301), and a screw rod rotatably mounted in the sliding frame (401) is threadably connected to the rotating frame (301). The fixing plate (402) is movably mounted on the outer end of the sliding frame (401) by means of a screw rod, and the fixing plate (402) is located on the inner side of the rotating frame (301).

2. A mold matching device for forming a new energy motor core according to claim 1, characterized in that: The mounting mechanism (1) comprises: an adjustment plate (102) and a push rod (1021); the adjustment plate (102) is slidably mounted on the sliding groove (1011); the push rod (1021) is fixedly mounted on the front side of the push rod (1021), and the push rod (1021) passes through the front side of the frame (101).

3. A mold matching device for forming a new energy motor core according to claim 2, characterized in that: The mounting mechanism (1) comprises: a rear groove (103) and a reference plate (104); the rear groove (103) is opened at the inner end of the rear side of the frame (101); the reference plate (104) is arranged at the upper end of the rear side of the frame (101), and the round rod at the bottom of the reference plate (104) is inserted into the rear groove (103).

4. A mold matching device for forming a new energy motor core according to claim 1, characterized in that: The adjustment mechanism (2) comprises: a mounting frame (201) and a fixing hole (2011); the mounting frame (201) is a rectangular structure, and a screw controlled by a motor is rotatably mounted inside the mounting frame (201); the fixing hole (2011) is symmetrically arranged on the bottom front side of the mounting frame (201).

5. A mold matching device for forming a new energy motor core according to claim 4, characterized in that: The adjustment mechanism (2) comprises: a base (202) and a docking hole (2021); the base (202) is slidably mounted inside the mounting frame (201), and the base (202) and the screw rod inside the mounting frame (201) are slidably matched; the docking holes (2021) are symmetrically arranged on both sides inside the base (202).

6. A mold matching device for forming a new energy motor core according to claim 5, characterized in that: The adjustment mechanism (2) comprises: a lifting plate (203) and a limiting member (204); the lifting plate (203) is slidably mounted inside the mounting frame (201), and the lifting plate (203) is controlled by a screw rod inside the mounting frame (201); the lifting plate (203) is located at the upper end of the base (202), and two groups of circular through holes are opened inside the lifting plate (203); the limiting member (204) is arranged at the rear side of the lifting plate (203) and the base (202), and the circular rod at the outer end of the limiting member (204) is respectively inserted into the docking hole (2021) and the circular hole in the lifting plate (203).

7. The mold matching device for forming a new energy motor core according to claim 1 is characterized in that: The rotating mechanism (3) comprises: a rotating frame (301) and a connecting slot (3011); the rotating frame (301) is a rectangular structure; and the connecting slot (3011) is disposed at a middle position on the rear side of the rotating frame (301).

8. The mold matching device for forming a new energy motor core according to claim 7 is characterized in that: The rotating mechanism (3) comprises: a moving member (302) and an insertion rod (3021); the moving member (302) is slidably mounted in the connecting groove (3011) via an elastic member; the insertion rod (3021) is symmetrically arranged on both sides of the outside of the moving member (302), and the insertion rod (3021) passes through the rear side of the rotating frame (301).

9. A mold matching device for forming a new energy motor core according to claim 8, characterized in that: The rotating mechanism (3) comprises: side grooves (303) and a top plate (304); the side grooves (303) are arranged on both sides of the upper end of the rotating frame (301); the top plate (304) is arranged on the upper end of the rotating frame (301), and both ends of the top plate (304) are engaged with the side grooves (303).

10. A mold matching method for a mold matching device for a new energy motor core forming mold according to any one of claims 1 to 9, characterized in that: The mold matching method of the mold matching device for the new energy motor core forming mold comprises the following steps: 1) placing the mold on the frame (101), with the lower mold resting on the reference plate (104) and the adjustment plate (102); 2) The upper mold is pressed against the top plate (304) on the rotating frame (301), and then the sliding frame (401) is moved and the upper mold is clamped with the fixed plate (402); 3) Separating the upper mold from the lower mold by moving the base (202) upward, then applying red paint on the lower mold, and then moving the base (202) to assemble them; 4) The upper mold is hammered to make it fit more closely on the lower mold. After hammering, the upper mold is lifted and the rotating frame (301) is rotated to turn the upper mold over and check the coverage of the outer red on the upper mold.

Images