Metallographic mounting machine

Abstract

The present invention relates to the field of inlay technology, and specifically relates to a metallographic inlaying machine, which includes an inlay module, a die sleeve, a pressing telescopic rod, and a die closing oil cylinder. The inlay module is arranged inside the die sleeve. The output end of the die closing oil cylinder is detachably connected to the lower die. A flange cover is fixedly connected to the top of the die sleeve; before heating, a part of the cooling water source is retained in the heating source temperature conduction seat through the cooling / preheating source switching component, and the heating part of the embedded heating rod placed inside the heating source temperature conduction seat can simultaneously heat the cooling water source when the temperature is conducted through the U-shaped heat conduction patch. Therefore, before cooling the pipeline formed by the secondary conduction of the intermediate diversion transfer seat and the heating source temperature conduction seat, the heat generated after heating the water source is still retained on the surface of the heating source temperature conduction seat, which can retain the temperature of the die surface and ensure that the re-circulated cooling water source will not directly cause the temperature of the die surface to drop rapidly.

Description

Technical Field

[0001] The invention relates to the field of inlay technology, in particular to a metallographic inlay machine. Background Art

[0002] Metallographic mounting machines are mainly used for thermosetting plastic pressing of tiny metallographic specimens. The main principle is to heat the thermosetting plastic to a certain temperature to make it reach a molten state, and then form the required model under pressure after entering the mold. In order to facilitate the smooth demolding of the plastic parts, the heat transferred to the mold during hot melting must be fully dissipated to make the plastic completely solidified. When traditional metallographic mounting machines are used to make hollow models, they usually adopt the form of pressurizing first and then heating, using resin particles to support the hollow structure, and gradually completing melting to achieve dynamic pressure control. Although this method can avoid deformation of hollow samples caused by pressure, there are the following problems, namely, after the mold is formed by the treatment method of pressurizing first and then heating, due to the direct delay of the heating cycle, the operation response time of the cooling system is also delayed, and the surface temperature holding time of the mold is directly extended, which is easy to cause mold sticking and overflow, and at the same time causes The molding cycle time is increased and the operating efficiency is not ideal. The treatment method of directly cooling the mold just after the heating reaches the highest set temperature will directly cause the mold surface temperature to drop rapidly. The temperature difference transition is too fast and it is easy to cause the appearance of weld marks, which directly affects the quality of sample preparation. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides a metallographic mounting machine.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a metallographic embedding machine, comprising an embedding module, a mold sleeve, a pressing telescopic rod and a mold clamping cylinder, wherein the embedding module is arranged inside the mold sleeve, a flange cover is fixedly connected to the top of the mold sleeve, a synchronous pressing driver is fixedly connected to the outside of the mold sleeve, a cooling water cavity group and a plurality of cooling / preheating source switching components are arranged between the synchronous pressing driver and the mold sleeve, and a plurality of groups of template embedding heat conduction components are arranged inside the cooling water cavity group;

[0005] The number of the cooling water chamber groups is two, and the two cooling water chamber groups are symmetrically distributed along the outer side of the embedded module. The cooling water chamber group includes an annular set frame, an intermediate flow guide transmission seat and a heating source temperature conduction seat. The annular set frame is sleeved on the outer side of the embedded module, the intermediate flow guide transmission seat is fixedly connected to the annular set frame, the heating source temperature conduction seat is fixedly connected to the intermediate flow guide transmission seat, the annular set frame is connected to the input end of the external water circulation system, and the intermediate flow guide transmission seat is connected to the heating source temperature conduction seat;

[0006] The cooling / preheating source switching component includes a waterway conduction joint, an inner sliding plug, a combined displacement sensor, and a folded and closed leather cavity. The combined displacement sensor is fixedly connected to the bottom of the inner sliding plug. The waterway conduction joint is fixedly connected to the intermediate diversion and transmission seat. The inner sliding plug is fixedly connected to the heating source temperature conduction seat. One end of the inner sliding plug extends slidably into the inner side of the waterway conduction joint. The folded and closed leather cavity is fixedly connected to the waterway conduction joint;

[0007] The template fitting heat conduction component includes an embedded heating rod and a U-shaped heat conduction patch. The U-shaped heat conduction patch is fixedly connected to the embedded heating rod. The embedded heating rod penetrates through the heating source temperature conduction seat and is fixedly connected to the heating source temperature conduction seat. The U-shaped heat conduction patch is fixedly connected to the embedded heating rod. The U-shaped heat conduction patch is located between the inlay module and the heating source temperature conduction seat.

[0008] Preferably, the inlay module includes an upper mold and a lower mold, which are symmetrically distributed. The annular sleeve frame, the intermediate diversion and transmission seat, and the heating source temperature conduction seat are all slidably sleeved on the outer sides of the upper mold and the lower mold. The output end of the mold clamping oil cylinder is detachably connected to the lower mold.

[0009] Preferably, both the upper mold and the lower mold are provided with template heating channels. One end of the U-shaped heat conduction patch extends into the inner side of the template heating channel. The output end of the synchronous pressing driver is fixedly connected to the annular sleeve frame.

[0010] Preferably, a circulation output pipe is fixedly connected to the outside of the heating source temperature conduction seat. The combined displacement sensor is electrically connected to the circulation output pipe. The circulation output pipe is connected to the output end of an external water circulation system.

[0011] Preferably, a flange cover is fixedly connected to the top of the mold sleeve. One end of the pressing telescopic rod is fixedly connected to a pressing cover. The bottom of the pressing cover is rotatably connected to a locking cover. The locking cover is rotatably connected to the flange cover.

[0012] Preferably, an isolation sleeve housing is sleeved outside the synchronous pressing driver. The isolation sleeve housing is fixedly connected to the mold sleeve. The mold sleeve is provided with a communication cavity. The mold sleeve communicates with the isolation sleeve housing through the communication cavity. The annular sleeve frame is slidably connected to the inner side of the communication cavity.

[0013] Advantages of the present invention compared with the prior art: By providing a cooling water cavity group, a cooling / preheating source switching component, and a template fitting heat conduction component, a smooth transition is achieved during the cooling process after heating. That is, before heating, the cooling water source is partially retained in the heating source temperature conduction seat through the cooling / preheating source switching component, and the heating part of the embedded heating rod placed inside the heating source temperature conduction seat can synchronously heat the cooling water source during the temperature conduction of the C-shaped heat conduction patch. Therefore, before cooling by reconnecting the pipeline formed by the intermediate diversion transmission seat and the heating source temperature conduction seat, the heat generated by heating the water source is still retained on the surface of the heating source temperature conduction seat, which can retain the temperature of the mold surface, ensuring that the recirculated cooling water source will not directly cause a rapid drop in the mold surface temperature, making the cooling temperature difference on the mold surface more stable, avoiding the appearance of model welding marks due to too fast a transition of the mold surface temperature difference, and effectively improving the molding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the drawings and embodiments.

[0015] Figure 1 It is a cross-sectional view of the present invention;

[0016] Figure 2 It is a three-dimensional schematic diagram of the present invention;

[0017] Figure 3 It is a schematic structural diagram of the inlay module, cooling water cavity group, cooling / preheating source switching component, and template fitting heat conduction component in the present invention;

[0018] Figure 4 For the present invention Figure 3 An enlarged view of part A;

[0019] Figure 5 It is a schematic structural diagram of the cooling water cavity group, cooling / preheating source switching component, and template fitting heat conduction component in the present invention.

[0020] In the figure: 1. Inlay module; 11. Upper mold; 12. Lower mold; 13. Template heating channel; 2. Mold sleeve; 201. Communication cavity; 21. Flange cover; 22. Synchronous pressing driver; 23. Isolation sleeve; 3. Pressing telescopic rod; 31. Pressing cover; 32. Locking cover; 4. Mold closing oil cylinder; 5. Cooling water cavity group; 51. Ring-shaped sleeve frame; 52. Intermediate diversion transmission seat; 53. Heating source temperature conduction seat; 531. Circulation output pipe; 6. Cooling / preheating source switching component; 61. Waterway conduction joint; 62. Inner sliding plug; 63. Merged displacement sensor; 64. Folded and closed leather cavity; 7. Template fitting heat conduction component; 71. Embedded heating rod; 72. C-shaped heat conduction patch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] like Figure 1 - Figure 5 As shown, a metallographic embedding machine described in the present invention includes an embedding module 1, a mold sleeve 2, a pressing telescopic rod 3 and a mold clamping cylinder 4, the embedding module 1 is arranged on the inner side of the mold sleeve 2, the output end of the mold clamping cylinder 4 is detachably connected to the lower mold 12, a flange cover 21 is fixedly connected to the top of the mold sleeve 2, a synchronous pressing driver 22 is fixedly connected to the outer side of the mold sleeve 2, a cooling water chamber group 5 and a plurality of cooling / preheating source switching components 6 are arranged between the synchronous pressing driver 22 and the mold sleeve 2, and a plurality of groups of template embedding heat conduction components 7 are arranged on the inner side of the cooling water chamber group 5.

[0023] In this embodiment, in order to solve the problem that the traditional metallographic mounting machine, when making a hollow model, adopts a processing method of first pressurizing and then heating, and directly cools the mold after the heating reaches the highest set temperature, which will directly cause the mold surface temperature to drop rapidly and the temperature difference transition is too fast to easily cause welding marks, the present invention solves this problem by providing a cooling water chamber group 5, a cooling / preheating source switching component 6 and a template embedded heat conduction component 7 to achieve a smooth transition during the cooling process after heating.

[0024] In an optional implementation of the present embodiment, a flange cover 21 is fixedly connected to the top of the mold sleeve 2, a pressure cover 31 is fixedly connected to one end of the compression telescopic rod 3, a locking card cover 32 is rotatably connected to the bottom of the pressure cover 31, and the locking card cover 32 is rotatably connected to the flange cover 21.

[0025] In this embodiment, the present invention is used to close the upper end of the flange cover 21 by setting a pressing and fitting telescopic rod 3, a pressing cover 31 and a locking card cover 32, so that the upper mold 11 is supported by the locking card cover 32 and maintained in a fixed position, that is, after the molding material is placed on the inner side of the lower mold 12, the upper mold 11 is installed on the inner side of the mold sleeve 2, and the locking card cover 32 is merged with the flange cover 21 by pressing down the pressing and fitting telescopic rod 3, and then the pressing cover 31 is manually twisted to achieve a threaded connection between the pressing cover 31 and the flange cover 21, so that the upper end of the flange cover 21 is blocked, and then subsequent heating and pressurization operations can be carried out. Since the improvement content of the present invention lies in the cooling water chamber group 5, the cooling / preheating source switching component 6 and the template embedded heat conduction component 7, and the heating and pressurization principle is a well-known technical means in the field, therefore, this part of the principle will not be repeated in the present invention.

[0026] In this embodiment, when the heating and mold clamping are not performed, the inner sliding plug 62 and the waterway conduction joint 61 remain in an extended state. At this time, the inner sliding plug 62 is located outside the waterway conduction joint 61, and a passage is formed between the waterway conduction joint 61, the intermediate diversion and transmission seat 52, and the heating source temperature conduction seat 53. The externally injected cooling water source can be directly circulated and diverted through the pipeline formed by the intermediate diversion and transmission seat 52 and the heating source temperature conduction seat 53. When the mold clamping oil cylinder 4 drives the upper mold 11 and the lower mold 12 to be clamped, the synchronous pressing driver 22 receives the mold clamping signal and synchronously drives the annular sleeve frames 51 in the two groups of cooling water chambers 5 to merge with each other. At this time, the inner sliding plug 62 squeezes inwardly against the waterway conduction joint 61, so that the folded and closed leather cavity 64 blocks the outlet of the waterway conduction joint 61 under the pressing action, preventing the cooling water source from circulating and outputting to the circulation output pipe 531, and keeping a part of the cooling water source in the heating source temperature conduction seat 53. Then, the heat source is generated by the embedded heating rod 71 and conducted inwardly along the template heating channel 13 opened in the upper mold 11 and the lower mold 12 through the U-shaped heat conduction patch 72, making the heating points fit more closely to the inner model structure surface of the mold. And because there is still the blocked cooling water source inside the heating source temperature conduction seat 53, and the embedded heating rod 71 is placed inside the heating source temperature conduction seat 53 to heat the cooling water source, before the pipeline formed by the intermediate diversion and transmission seat 52 and the heating source temperature conduction seat 53 is secondarily conducted for cooling, the surface of the heating source temperature conduction seat 53 still retains the temperature generated after heating, cooperating with the re-circulated cooling water source to produce a gentle temperature drop, avoiding the appearance of model welding marks caused by too rapid temperature difference transition on the mold surface, which directly affects the quality of specimen preparation.

[0027] In an alternative embodiment of this embodiment, the number of the cooling water chamber groups 5 is two, and the two cooling water chamber groups 5 are symmetrically distributed along the outside of the embedding module 1. The cooling water chamber group 5 includes an annular sleeve frame 51, an intermediate diversion and transmission seat 52, and a heating source temperature conduction seat 53. The annular sleeve frame 51 is sleeved outside the embedding module 1, the intermediate diversion and transmission seat 52 is fixedly connected to the annular sleeve frame 51, the heating source temperature conduction seat 53 is fixedly connected to the intermediate diversion and transmission seat 52, the annular sleeve frame 51 is connected to the input end of the external water circulation system, and the intermediate diversion and transmission seat 52 and the heating source temperature conduction seat 53 are communicated with each other.

[0028] In this embodiment, the interior of the intermediate flow guide transmission seat 52 and the heating source temperature conduction seat 53 is a cavity, and the intermediate flow guide transmission seat 52 and the heating source temperature conduction seat 53 are interconnected. The annular set frame 51 plays a role in supporting the intermediate flow guide transmission seat 52 and the heating source temperature conduction seat 53, wherein the heating source temperature conduction seat 53 outputs the cooling water source to the external water circulation end through the circulation output pipe 531, and at the same time, a solenoid valve is provided at the connection between the heating source temperature conduction seat 53 and the circulation output pipe 531. When the water channel conduction joint 61 and the inner sliding plug 62 are merged with each other, the solenoid valve receives the displacement signal of the folded closed bellows 64 and is synchronously closed, so that the cooling water source is intercepted to a part of the inner side of the heating source temperature conduction seat 53, which is used to assist the heating source temperature conduction seat 53 in temperature conduction.

[0029] In an optional implementation of the present embodiment, the cooling / preheating source switching assembly 6 includes a water path conduction joint 61, an inner sliding plug 62, a combined displacement sensor 63 (a displacement sensor is selected) and a foldable closed leather cavity 64, the combined displacement sensor 63 is fixedly connected to the bottom of the inner sliding plug 62, the water path conduction joint 61 is fixedly connected to the intermediate guide transmission seat 52, the inner sliding plug 62 is fixedly connected to the heating source temperature conduction seat 53, one end of the inner sliding plug 62 slides and extends to the inner side of the water path conduction joint 61, and the foldable closed leather cavity 64 is fixedly connected to the water path conduction joint 61.

[0030] In this embodiment, the intermediate diversion and transmission seat 52 and the heating source temperature conduction seat 53 are interconnected through a water conduction joint 61, and a collapsible sealing leather cavity 64 is arranged between the water conduction joint 61 and the inner sliding plug 62 to provide connection tightness therebetween. When the upper die 11 and the lower die 12 are closed, the synchronous pressing drive 22 drives the annular sleeve frames 51 in the two groups of cooling water cavity groups 5 to move dynamically in the same direction as the upper die 11 and the lower die 12 are combined, so that the inner sliding plug 62 slides towards the water conduction joint 61 and presses the collapsible sealing leather cavity 64 inside the water conduction joint 61. At this time, the collapsible sealing leather cavity 64 collapses under the pressure of the inner sliding plug 62 and closes the channel between the water conduction joint 61 and the heating source temperature conduction seat 53, closing the input end of the circulation pipeline formed by the intermediate diversion and transmission seat 52 and the heating source temperature conduction seat 53, and thus解除 the circulating cooling of the intermediate diversion and transmission seat 52 and the heating source temperature conduction seat 53. At the same time, after解除 the circulating cooling of the intermediate diversion and transmission seat 52 and the heating source temperature conduction seat 53, a part of the cooling water source remains inside the heating source temperature conduction seat 53. The heating of this part of the water source by the embedded heating rod 71 can make the heating source temperature conduction seat 53 retain a certain temperature, which is used to retain the temperature of the mold surface before the upper die 11 and the lower die 12 are cooled. When the circulating cooling water source is restarted, since the heating source temperature conduction seat 53 still retains the temperature affected by the heated part of the water source, the temperature reduction speed transition time of the mold surface can be stabilized, that is, the heating source temperature conduction seat 53 cools first and then conducts the temperature to the mold surface for cooling, thereby avoiding the situation that when the heating temperature just reaches the highest set temperature and then directly cools the mold, which will directly cause the temperature of the mold surface to drop rapidly, and the temperature difference transition is too fast, which is likely to cause the appearance of weld marks.

[0031] In this embodiment, the inner sliding plug 62 is provided with a through hole communicating with the heating source temperature conduction seat 53. When the inner sliding plug 62 slides and extends to the inner top wall of the water conduction joint 61, the through hole of the inner sliding plug 62 is closed by the combined displacement sensor 63, so that the heating source temperature conduction seat 53 and the intermediate diversion and transmission seat 52 are no longer conducted.

[0032] In an alternative embodiment of this embodiment, the template fitting heat conduction assembly 7 includes an embedded heating rod 71 and a U-shaped heat conduction patch 72. The U-shaped heat conduction patch 72 is fixedly connected to the embedded heating rod 71. The embedded heating rod 71 penetrates through the heating source temperature conduction seat 53 and is fixedly connected to the heating source temperature conduction seat 53. The U-shaped heat conduction patch 72 is fixedly connected to the embedded heating rod 71, and the U-shaped heat conduction patch 72 is located between the embedding module 1 and the heating source temperature conduction seat 53.

[0033] It should be noted that there are some inaccuracies in the original Chinese text, such as "解除" which is not a proper English expression in this context. I have tried my best to translate it according to the meaning, but it may need further adjustment according to the specific technical content.In an alternative embodiment of the present embodiment, the inlay module 1 includes an upper mold 11 and a lower mold 12, which are symmetrically distributed. The annular sleeve frame 51, the intermediate flow guiding transmission seat 52, and the heating source temperature conduction seat 53 are all slidably sleeved on the outer sides of the upper mold 11 and the lower mold 12.

[0034] In an alternative embodiment of the present embodiment, both the upper mold 11 and the lower mold 12 are provided with template heating channels 13. One end of the U-shaped heat conduction patch 72 extends to the inside of the template heating channel 13, and the output end of the synchronous pressing driver 22 is fixedly connected to the annular sleeve frame 51.

[0035] In an alternative embodiment of the present embodiment, a circulation output pipe 531 is fixedly connected to the outside of the heating source temperature conduction seat 53. The combined displacement sensor 63 is electrically connected to the circulation output pipe 531, and the circulation output pipe 531 is connected to the output end of an external water circulation system.

[0036] In this embodiment, when the mold clamping cylinder 4 drives the upper mold 11 and the lower mold 12 to close the mold, a start signal is sent to the synchronous pressing driver 22. The synchronous pressing driver 22 drives the annular sleeve frames 51 in two symmetrically arranged cooling water cavity groups 5 to move in the same direction along with the closing of the upper mold 11 and the lower mold 12. After the two annular sleeve frames 51 move in the same direction, the heating source temperature conduction seats 53 distributed vertically contact each other, causing the U-shaped heat conduction patch 72 on one side of the heating source temperature conduction seat 53 to slide towards the inside of the template heating channel 13, bringing the U-shaped heat conduction patch 72 close to the upper mold 11 and the lower mold 12. At the same time, the inner sliding plug 62 slides towards the inside of the waterway conduction joint 61 and squeezes the folded and closed leather cavity 64, causing the folded and closed leather cavity 64 to block the input end of the circulating water source. Meanwhile, after the combined displacement sensor 63 senses the displacement of the inner sliding plug 62, a closing signal is sent to the electromagnetic valve between the heating source temperature conduction seat 53 and the circulating output pipe 531, so that the circulating output pipe 531 will not export the cooling water source remaining inside the heating source temperature conduction seat 53. Then, the embedded heating rod 71 is energized to heat, and the heating temperature is conducted to the upper mold 11 and the lower mold 12 through the U-shaped heat conduction patch 72. Among them, both the electromagnetic valve and the synchronous pressing driver 22 are equipped with time control switches. The time control switch set for the electromagnetic valve is used to set the single closing duration of the electromagnetic valve (the single closing duration of the electromagnetic valve is synchronized with the heating duration). After the electromagnetic valve is closed, the time control switch starts timing. When the set single closing time is reached, the electromagnetic valve is driven to open, and the heating source temperature conduction seat 53 and the circulating output pipe 531 are re-conducted, and the cooling water source input by the intermediate diversion transmission seat 52 is exported and circulated through the circulating output pipe 531. The time control switch set for the synchronous pressing driver 22 is synchronized with the set duration of the time control switch set for the electromagnetic valve. When the time control switch set for the synchronous pressing driver 22 reaches the set duration, a contraction signal is sent to the synchronous pressing driver 22, causing the synchronous pressing driver 22 to drive the two annular sleeve frames 51 to move in the opposite direction respectively, so that the inner sliding plug 62 slides out of the inside of the waterway conduction joint 61, thereby re-conducting the circulating water source between the intermediate diversion transmission seat 52 and the heating source temperature conduction seat 53, and enabling the circulating water source to start cooling circulation through the intermediate diversion transmission seat 52, the heating source temperature conduction seat 53 and the circulating output pipe 531.

[0037] In an alternative embodiment of this embodiment, an isolation sleeve 23 is provided outside the synchronous pressing driver 22. The isolation sleeve 23 is fixedly connected to the mold sleeve 2. The mold sleeve 2 is provided with a communication cavity 201. The mold sleeve 2 communicates with the isolation sleeve 23 through the communication cavity 201. The annular sleeve frame 51 is slidably connected to the inside of the communication cavity 201; among them, the synchronous pressing driver 22 can be an electromagnetic telescopic rod.

[0038] In this embodiment, the isolation casing 23 is used to cover the synchronous pressing driver 22, the cooling water chamber group 5 and the cooling / preheating source switching assembly 6 on the outside of the mold sleeve 2, while maintaining the closedness of the mold sleeve 2. The connection cavity 201 is provided to provide a movement space when the synchronous pressing driver 22 drives the annular sleeve frame 51 to slide, so that the annular sleeve frame 51 can move along the outside of the upper mold 11 and the lower mold 12. At the same time, because the cooling water chamber group 5 is separated from the upper mold 11 and the lower mold 12, the flow volume during circulation cooling is larger than that of the integrated cooling water chamber.

[0039] The working principle of the present invention is as follows: After placing the molding material inside the lower mold 12, install the upper mold 11 inside the mold sleeve 2. After the locking cover 32 and the flange cover 21 are combined by pressing down the telescopic rod 3 of the press fit, manually rotate the gland 31 to lock the flange cover 21 and the gland 31. Then, jack up the lower mold 12 through the mold closing oil cylinder 4 to close the upper mold 11 and the lower mold 12. While the mold closing oil cylinder 4 drives the upper mold 11 and the lower mold 12 to close the mold, a start signal is sent to the synchronous press fit driver 22. The synchronous press fit driver 22 drives the annular sleeve frames 51 in the two symmetrically arranged cooling water chamber groups 5 to move in the same direction as the upper mold 11 and the lower mold 12 close the mold, so that the two heating source temperature conduction seats 53 distributed vertically and horizontally are in contact with each other. The U-shaped heat conduction patch 72 on one side of the heating source temperature conduction seat 53 slides to the inside of the template heating channel 13. At the same time, the inner sliding plug 62 slides and presses the folding and closing leather cavity 64 inside the waterway conduction joint 61, so that the folding and closing leather cavity 64 blocks the input end of the circulating water source. After the blockage, after the combined displacement sensor 63 senses the displacement of the inner sliding plug 62, a closing signal is sent to the electromagnetic valve between the heating source temperature conduction seat 53 and the circulating output pipe 531, so that a part of the cooling water source is retained in the heating source temperature conduction seat 53. Then, the embedded heating rod 71 is energized to heat the temperature conducted to the upper mold 11 and the lower mold 12 through the U-shaped heat conduction patch 72. The time control switches set in the synchronous press fit driver 22 and the electromagnetic valve in the circulating output pipe 531 start timing until the heating is completed. When the time control switches set in the synchronous press fit driver 22 and the electromagnetic valve in the circulating output pipe 531 reach the set duration, the electromagnetic valve in the circulating output pipe 531 opens, and the synchronous press fit driver 22 drives the two annular sleeve frames 51 to move in the opposite direction respectively, so that the inner sliding plug 62 slides out of the inside of the waterway conduction joint 61, and the circulating water source between the intermediate diversion transmission seat 52 and the heating source temperature conduction seat 53 is re-conducted, so that the embedded heating rod 71 and the heating source temperature conduction seat 53 dissipate heat synchronously. The upper mold 11 and the lower mold 12 are attached and cooled through the circulating water source inside the intermediate diversion transmission seat 52 and the heating source temperature conduction seat 53. Moreover, since there is a blocked cooling water source inside the heating source temperature conduction seat 53, and the embedded heating rod 71 is placed inside the heating source temperature conduction seat 53 to heat the cooling water source, before the pipeline formed by the secondary conduction of the intermediate diversion transmission seat 52 and the heating source temperature conduction seat 53 is cooled, a certain temperature is still retained on the surface of the heating source temperature conduction seat 53 after heating, which can avoid the direct conduction of the cooling water source temperature to the upper mold 11 and the lower mold 12. Instead, the heating source temperature conduction seat 53 cools down and conducts to the upper mold 11 and the lower mold 12, thereby preventing the appearance of model welding marks caused by too fast temperature difference transition on the mold surface and effectively improving the overall quality after sample preparation.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A metallographic mounting machine, comprising a mounting module (1), a die sleeve (2), a pressing telescopic rod (3) and a die clamping cylinder (4), wherein the mounting module (1) is arranged inside the die sleeve (2), and is characterized in that: A flange cover (21) is fixedly connected to the top of the die sleeve (2). A synchronous pressing driver (22) is fixedly connected to the outer side of the die sleeve (2). A cooling water cavity group (5) and a plurality of cooling / preheating source switching components (6) are arranged between the synchronous pressing driver (22) and the die sleeve (2). A plurality of template fitting heat conduction components (7) are arranged inside the cooling water cavity group (5). The number of the cooling water cavity groups (5) is two, and the two cooling water cavity groups (5) are symmetrically distributed along the outer side of the inlay module (1). The cooling water cavity group (5) includes an annular sleeve frame (51), an intermediate diversion transmission seat (52), and a heating source temperature conduction seat (53). The annular sleeve frame (51) is sleeved on the outer side of the inlay module (1). The intermediate diversion transmission seat (52) is fixedly connected to the annular sleeve frame (51). The heating source temperature conduction seat (53) is fixedly connected to the intermediate diversion transmission seat (52). The annular sleeve frame (51) is connected to the input end of an external water circulation system. The intermediate diversion transmission seat (52) and the heating source temperature conduction seat (53) are communicated with each other. The cooling / preheating source switching component (6) includes a waterway conduction joint (61), an inner sliding plug (62), a combined displacement sensor (63), and a folded and closed leather cavity (64). The combined displacement sensor (63) is fixedly connected to the bottom of the inner sliding plug (62). The waterway conduction joint (61) is fixedly connected to the intermediate diversion transmission seat (52). The inner sliding plug (62) is fixedly connected to the heating source temperature conduction seat (53). One end of the inner sliding plug (62) slides and extends into the inner side of the waterway conduction joint (61). The folded and closed leather cavity (64) is fixedly connected to the waterway conduction joint (61). The template fitting heat conduction component (7) includes an embedded heating rod (71) and a U-shaped heat conduction patch (72). The U-shaped heat conduction patch (72) is fixedly connected to the embedded heating rod (71). The embedded heating rod (71) penetrates through the heating source temperature conduction seat (53) and is fixedly connected to the heating source temperature conduction seat (53). The U-shaped heat conduction patch (72) is fixedly connected to the embedded heating rod (71). The U-shaped heat conduction patch (72) is located between the inlay module (1) and the heating source temperature conduction seat (53).

2. A metallographic mounting machine according to claim 1, characterized in that: The inlay module (1) includes an upper die (11) and a lower die (12). The upper die (11) and the lower die (12) are symmetrically distributed. The annular sleeve frame (51), the intermediate diversion transmission seat (52), and the heating source temperature conduction seat (53) are all slidably sleeved on the outer sides of the upper die (11) and the lower die (12). The output end of the die closing oil cylinder (4) is detachably connected to the lower die (12).

3. A metallographic mounting machine according to claim 2, characterized in that: The upper die (11) and the lower die (12) are both provided with template heating channels (13). One end of the U-shaped heat conduction patch (72) extends to the inside of the template heating channel (13). The output end of the synchronous pressing driver (22) is fixedly connected to the annular sleeve frame (51).

4. A metallographic mounting machine according to claim 3, characterized in that: A circulation output pipe (531) is fixedly connected to the outside of the heating source temperature conduction seat (53). The combined displacement sensor (63) is electrically connected to the circulation output pipe (531). The circulation output pipe (531) is connected to the output end of an external water circulation system.

5. The metallographic mounting machine according to claim 1, characterized in that: A flange cover (21) is fixedly connected to the top of the die sleeve (2). One end of the pressing telescopic rod (3) is fixedly connected to a pressing cover (31). A locking cover (32) is rotatably connected to the bottom of the pressing cover (31). The locking cover (32) is rotatably connected to the flange cover (21).

6. A metallographic mounting machine according to claim 1, characterized in that: An isolation sleeve housing (23) is sleeved outside the synchronous pressing driver (22). The isolation sleeve housing (23) is fixedly connected to the die sleeve (2). The die sleeve (2) is provided with a communication cavity (201). The die sleeve (2) communicates with the isolation sleeve housing (23) through the communication cavity (201). The annular sleeve frame (51) is slidably connected to the inside of the communication cavity (201).

Images