Demoulding tool

Abstract

The utility model relates to a demolding tool, and relates to the technical field of demolding of plastic parts. The demolding tool comprises a mounting assembly, a demolding assembly and a demolding assembly, the mounting assembly comprises a mounting seat, and the mounting seat is used for mounting a sample to be demolded; the driving assembly is mounted on the mounting assembly, the driving assembly is connected with a knocking structure, the knocking surface of the knocking structure is a flexible knocking surface, and the driving assembly is used for enabling the knocking structure to be close to or away from the mounting seat so as to knock and demould the to-be-demoulded sample on the mounting seat. A to-be-demoulded sample needing to be demoulded can be placed on the mounting base, the knocking structure is driven by the driving assembly to be close to the mounting base, the to-be-demoulded sample on the mounting base is knocked by the knocking structure, and knocking demoulding work of the to-be-demoulded sample is achieved. Compared with an iron hammer, the flexible knocking surface of the knocking structure can play a buffering role in the knocking process, so that the damage to the sample to be demoulded and the mould is reduced, the mould can be used for many times, and the test cost of metallographic analysis is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a plastic part demolding technical field, in particular to a demolding tool. BACKGROUND

[0002] In order to observe the cross section organization structure of sample, the failure reason of electronic component is analyzed, and the detected part is sampled. If the sample size is too small or the shape is extremely irregular, such as belt, silk, sheet and tube, it is very difficult to prepare the sample, so the sample must be inlaid, and the sample is embedded in the plastic to form a specific shaped sample by pouring plastic in the mold.

[0003] At present, the plastic inlaying is generally adopted, and the inlaying material is specifically divided into thermosetting plastic (such as bakelite powder), thermoplastic plastic (such as polyvinyl chloride) and cold condensation plastic (epoxy resin plus curing agent) and the like. Among them, the sample is inlaid by using epoxy resin, and the pouring can be cured at room temperature, so that the sample organization will not change.

[0004] After the sample is inlaid, the sample needs to be put into the mold, and the sample needs to be taken out after the plastic is solidified. However, the solidified sample and the mold are tightly combined, and the solidified sample is often knocked out of the mold during sampling. The mold is easily damaged during knocking, so that the mold used for sample preparation cannot be used again, and the test cost of metallographic analysis is increased. UTILITY MODEL CONTENTS

[0005] The utility model provides a demolding tool for reducing the damage of the sampling process to the mold and reducing the test cost of metallographic analysis.

[0006] The utility model provides a demolding tool, which comprises: a mounting assembly, the mounting assembly comprising a mounting seat for mounting a sample to be demolded; a driving assembly installed on the mounting assembly, the driving assembly being connected with a knocking structure, the knocking surface of the knocking structure being a flexible knocking surface, and the driving assembly being used for making the knocking structure close to or away from the mounting seat to knock the sample to be demolded on the mounting seat.

[0007] In one embodiment, the driving assembly and the knocking structure are detachably connected.

[0008] In one embodiment, the knocking structure is wrapped around one end of the driving assembly towards the mounting seat.

[0009] In one embodiment, the mounting assembly comprises a frame body, the mounting seat is installed on the frame body, a connecting bracket is also installed on the frame body, and the spacing between the connecting bracket and the mounting seat is adjustable.

[0010] The driving assembly is installed on the connecting bracket.

[0011] In one embodiment, the frame body is provided with an adjusting groove, the connecting support is provided with a locking assembly, the locking assembly is slidably connected to the adjusting groove, and the locking assembly can be locked or unlocked with the frame body.

[0012] In one embodiment, the frame body is further provided with at least two adjusting grooves, and each adjusting groove is parallel to each other.

[0013] The demolding tool comprises a plurality of locking assemblies, each of which is connected to the connecting support, and each adjusting groove is connected to at least one locking assembly.

[0014] In one embodiment, the extending direction of the adjusting groove is parallel to the moving direction of the knocking structure.

[0015] In one embodiment, the connecting support comprises a first connecting part and a guide part.

[0016] The driving assembly comprises a driving rod, a connecting rod and a guide rod, the driving rod is rotatably connected to the first connecting part, one side of the connecting rod is rotatably connected to the driving rod, the other side of the connecting rod is rotatably connected to the guide rod, the guide rod is slidably installed in the guide part, and the knocking structure is connected to the guide rod.

[0017] In one embodiment, the driving rod comprises a crank part and an extended handle part, one end of the crank part is rotatably connected to the connecting support, the other end of the crank part is rotatably connected to the connecting rod, the extended handle part is fixedly connected to the crank part, and the length of the extended handle part is greater than the length of the crank part.

[0018] In one embodiment, the mounting seat and the connecting support are both installed on the first side of the frame body, and the frame body is provided with a reinforcing rib plate on the side away from the first side.

[0019] Compared with the prior art, the advantages of the utility model lie in that the sample to be demolded can be placed on the mounting seat during use, the knocking structure is driven by the driving assembly to approach the mounting seat, the sample to be demolded on the mounting seat is knocked by the knocking structure, and the knocking demolding work of the sample to be demolded is realized. Compared with the iron hammer, the knocking surface of the knocking structure is a flexible knocking surface, which can play a buffering role in the knocking process, thereby reducing the damage to the sample to be demolded. At the same time, the driving assembly can limit the moving track of the knocking structure, thereby improving the knocking precision and avoiding the damage to the mold caused by knocking during the knocking process. Thus, the damage to the sample to be demolded and the mold is reduced, the mold can be used repeatedly, and the testing cost of metallographic analysis is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be described in more detail below based on the embodiments and with reference to the drawings.

[0021] Figure 1is a left view structural schematic diagram of the demolding tool in the embodiment of the utility model;

[0022] Figure 2 is a extension handle part rotating schematic diagram of the demolding tool in the embodiment of the utility model;

[0023] Figure 3 is a main view structural schematic diagram of the demolding tool in the embodiment of the utility model;

[0024] Figure 4 is a main view structural schematic diagram of the frame body in the embodiment of the utility model;

[0025] Figure 5 is a structural schematic diagram of the driving rod in the embodiment of the utility model;

[0026] Figure 6 is a structural schematic diagram of the connecting rod in the embodiment of the utility model;

[0027] Figure 7 is a structural schematic diagram of the connecting support in the embodiment of the utility model;

[0028] Figure 8 is a bottom view structural schematic diagram of the mounting assembly in the embodiment of the utility model.

[0029] Reference signs:

[0030] 100, mounting assembly; 110, frame body; 111, adjusting groove; 120, mounting seat; 130, connecting support; 131, first connecting part; 132, guide part; 133, second connecting part; 140, reinforcing rib plate; 150, bottom plate; 160, soft pad;

[0031] 200, driving assembly; 210, driving rod; 211, crank part; 212, extension handle part; 220, connecting rod; 221, avoiding groove; 230, guide rod;

[0032] 300, knocking structure;

[0033] 400, locking assembly. DETAILED DESCRIPTION

[0034] The utility model will be described further below with reference to the drawings.

[0035] In order to observe the cross section organization structure of sample, the failure reason of electronic component is analyzed, and the detected part is sampled.If the sample size is too small or the shape is extremely irregular, such as belt, wire, sheet, tube, it is very difficult to prepare sample, so the sample must be inlaid.

[0036] At present, the plastic inlay is generally used, and the inlay material is specifically divided into thermosetting plastic (such as bakelite powder), thermoplastic plastic (such as polyvinyl chloride) and cold-setting plastic (epoxy resin plus curing agent) and the like. Among them, the epoxy resin inlay sample can be cured at room temperature after pouring, so that the sample organization will not change.

[0037] After the sample is inlaid, the sample needs to be placed in the mold, and the sample needs to be taken out after the plastic is cured. However, the cured sample and the mold are tightly combined, and the cured sample is often knocked out of the mold when taking out the sample. The process of knocking is easy to damage the mold, so that the mold used for sample preparation cannot be used again, which increases the test cost of metallographic analysis.

[0038] Referring to Figure 1 , Figure 2 and Figure 3 , a demolding tool is provided, which comprises: a mounting assembly 100, a driving assembly 200 and a knocking structure 300. The driving assembly 200 is installed on the mounting assembly 100, and the driving assembly 200 is connected with the knocking structure 300. The knocking surface of the knocking structure 300 is a flexible knocking surface.

[0039] When the sample to be demolded (including the sample and the mold embedded in the sample) needs to be demolded, the sample to be demolded can be installed at the mounting seat 120 of the mounting assembly 100, and then the driving assembly 200 installed on the mounting assembly 100 is used to drive the knocking structure 300 to approach the mounting seat 120, so that the flexible knocking surface of the knocking structure 300 can knock the sample to be demolded on the mounting seat 120, thereby knocking the resin part in the sample to be demolded out of the mold, and realizing the demolding work of the sample to be demolded.

[0040] Since the flexible knocking surface of the knocking structure 300 is used to knock the sample to be demolded, the elasticity of the knocking structure 300 can be used to play a buffering role, reducing the damage to the sample to be demolded. The damage to the mold in the process of knocking the resin part out of the mold is avoided, so that the mold can still be used for the next sample inlay, and the test cost of metallographic analysis is reduced.

[0041] The knocking structure 300 can be made of hard rubber, which has a certain buffering effect and a relatively fixed shape, and can maintain the original shape after long-term use. Avoiding the deformation of the knocking structure 300 and hammering on the mold part of the sample to be demolded, causing damage to the mold. In other implementations, the knocking structure 300 can also be provided as a structure with an outer rubber layer and an inner metal layer, which has a flexible knocking surface and can maintain the shape of the knocking structure 300 through the inner metal structure. Alternatively, materials other than rubber can also be used to form a flexible knocking surface, such as a pituitary gland wrapped with linen, and materials such as silicone, PVC soft rubber, TPU thermoplastic polyurethane elastomer rubber, etc. can also be used to make the knocking structure 300.

[0042] In some implementations, the knocking structure 300 can be detachably mounted on the driving assembly 200. Not only can the damaged knocking structure 300 be recycled by replacing it, but a new knocking structure 300 can also be installed to meet the subsequent demolding work. The corresponding knocking structure 300 can also be selected according to the sample to be demolded, such as selecting a corresponding knocking structure 300 according to the shape and size of the part, to ensure that the knocking structure 300 is adapted to the part, and to avoid the knocking structure 300 from knocking on the mold of the sample to be demolded when using the demolding tool to demold, causing the part to be unable to be separated from the mold.

[0043] For example, for a cylindrical structure part, a knocking structure 300 with a cross-sectional size slightly smaller than that of the part can be installed on the driving assembly 200, and the knocking structure 300 can be driven by the driving assembly 200 to hammer on the part.

[0044] In some implementations, the knocking structure 300 is mounted on the guide rod 230 of the driving assembly 200. The knocking structure 300 is provided with an internal thread, and the guide rod 230 is provided with an external thread. The knocking structure 300 is detachably mounted on the driving assembly 200 by screwing the internal thread of the knocking structure 300 with the external thread of the guide rod 230.

[0045] It can be understood that in other implementations, mounting holes can also be provided on the side of the knocking structure 300, and the knocking structure 300 is threadedly connected to the driving assembly 200 through screws passing through the mounting holes, so as to achieve detachable connection between the knocking structure 300 and the driving assembly 200. Of course, the detachable connection between the knocking structure 300 and the driving assembly 200 is not limited to the above two threaded connection modes, and the detachable connection between the knocking structure 300 and the driving assembly 200 also includes pin connection or clamping connection by providing a clamping groove structure on the driving assembly 200. In order to achieve the positioning of the knocking structure 300, a vertically extending guide structure can also be provided on the guide rod 230, and the guide structure is matched with the knocking structure 300 to avoid the installation angle error of the knocking structure 300 after being installed on the guide rod 230. Alternatively, the knocking structure 300 can be directly sleeved on the guide rod 230, and the knocking structure 300 is fixed on the guide rod 230 by means of interference fit to avoid the shaking of the knocking structure 300 on the guide rod 230.

[0046] In some implementations, the knocking structure 300 is wrapped at one end of the driving assembly 200 facing the mounting seat 120. Compared with inserting the knocking structure 300 into the end of the driving assembly 200, the area of the driving assembly 200 exposed to the outside is reduced, so that when the knocking structure 300 strikes the sample to be demolded, the knocking structure 300 wrapped around the driving assembly 200 can be used to separate the driving assembly 200 from the sample to be demolded, avoiding direct contact between the driving assembly 200 and the sample to be demolded, which can damage the driving assembly 200 or the sample to be demolded.

[0047] Referring to Figure 1 As shown, the end of the driving assembly 200 facing the mounting seat 120 is the guide rod 230, and the guide rod 230 is spaced apart from the sample to be demolded by wrapping the end of the guide rod 230 with the knocking structure 300 during the demolding process.

[0048] It can be understood that in other implementations, an upwardly recessed mounting hole structure can also be provided at the end of the guide rod 230, and the knocking structure 300 is connected to the driving assembly 200 by being inserted into the mounting hole structure.

[0049] Referring to Figure 2 As shown, the mounting seat 120 is composed of two spaced apart plate bodies, and the two plate bodies form a first groove. In use, the sample to be demolded can be installed at the first groove to avoid shaking of the sample to be demolded during demolding.

[0050] The mounting assembly 100 comprises a frame 110, and two plate bodies of the mounting seat 120 are mounted on the frame 110. In some implementations, the first plate body of the two plate bodies is fixed on the frame 110, and the mounting position of the second plate body of the two plate bodies is adjustable. The mounting position of the second plate body can be adjusted for different sizes of the sample to be demolded, so that the first groove formed by the two plate bodies can adapt to the size of the sample to be demolded. Specifically, for the sample to be demolded with a wider width, the distance between the second plate body and the first plate body can be set larger, so as to form a first groove with a wider width. For the sample to be demolded with a narrower width, the distance between the second plate body and the first plate body can be set smaller, so as to form a first groove with a narrower width. It can be understood that a plurality of mounting holes can be arranged on the frame 110, so as to realize the adjustment of the mounting position of the second plate body by selecting the mounting of the second plate body into the corresponding mounting hole. An elastic member can also be arranged on the frame 110, and the elastic member is used to drive the second plate body to be clamped on the side of the sample to be demolded away from the first plate body, so as to realize the adjustment of the distance between the first plate body and the second plate body.

[0051] As shown in Figure 1 and Figure 3 , the frame 110 is further connected with a third plate body, the third plate body is arranged below the first plate body, and the first plate body, the frame 110 and the first plate body are vertically connected two by two, so as to improve the anti-deformation ability of the first plate body. Similarly, a fourth plate body is arranged below the second plate body, and the frame 110, the second plate body and the fourth plate body are vertically connected two by two, so as to improve the anti-deformation ability of the second plate body.

[0052] It can be understood that the mounting seat 120 can also adopt other structures, for example, the mounting seat 120 in a tubular structure or a block structure, and a first groove for mounting the sample to be demolded is arranged in the mounting seat 120.

[0053] As shown in Figure 1 , Figure 3 and Figure 4 , in some implementations, the mounting assembly 100 comprises a frame 110, the frame 110 is mounted with a mounting seat 120, and a connecting bracket 130 is further mounted on the frame 110, and the distance between the connecting bracket 130 and the mounting seat 120 is adjustable. The driving assembly 200 is mounted on the connecting bracket 130.

[0054] Understandably, resin products have diverse structures, but the driving stroke of some drive components 200 is relatively fixed. When the height of the sample to be demolded is relatively low, the short driving stroke of the drive component 200 may make it difficult for the striking structure 300 connected to the drive component 200 to contact the sample. Since the distance between the connecting bracket 130 and the mounting base 120 is adjustable, the required travel distance of the drive component 200 can be adjusted by adjusting the distance between the connecting bracket 130 and the mounting base 120.

[0055] Among them, see Figure 3 and Figure 4 As shown, in some implementations, the distance between the connecting bracket 130 and the mounting base 120 is adjusted by changing the position of the connecting bracket 130. Specifically, when the height of the sample to be demolded is low, the height of the connecting bracket 130 located above the mounting base 120 can be lowered, thereby shortening the distance between the mounting base 120 and the connecting bracket 130. This allows the drive assembly 200 to travel a shorter distance to hammer the striking structure 300 onto the sample to be demolded, thus achieving demolding. When the height of the sample to be demolded is high, the height of the connecting bracket 130 located above the mounting base 120 can be raised, thereby preventing the striking structure 300 from being driven too far when the drive assembly 200 drives it.

[0056] Of course, in other implementations, the distance between the mounting base 120 and the connecting bracket 130 can be adjusted by setting the mounting base 120 to an adjustable mounting position and changing the mounting position of the mounting base 120.

[0057] See Figure 1 , Figure 3 and Figure 4 As shown, in some implementations, the frame 110 is provided with an adjustment groove 111, and the connecting bracket 130 is connected to a locking component 400. The locking component 400 is slidably connected to the adjustment groove 111, and the locking component 400 can be locked or unlocked with the frame 110.

[0058] In other words, when the position of the connecting bracket 130 does not need to be adjusted, the locking component 400 can be locked to the frame 110 to prevent the locking component 400 from sliding relative to the adjustment groove 111. When the position of the connecting bracket 130 needs to be adjusted, the locking component 400 can be unlocked from the frame 110, and the position of the locking component 400 on the frame 110 can be adjusted simultaneously to adjust the position of the connecting bracket 130 on the frame 110. After the connecting bracket 130 has moved to the target position, the locking component 400 can be locked to the frame 110 again to prevent the connecting bracket 130 from moving relative to the frame 110.

[0059] SeeFigure 3 As shown, in some implementations, the locking assembly 400 includes a connecting bolt and a locking nut. The connecting bolt passes through the mounting hole provided on the connecting bracket 130, and the connecting bolt is screwed with the locking nut through the adjusting slot 111 of the frame 110. When the connecting bolt and the locking nut are locked, the locking assembly 400 is locked on the frame 110, and the relative position between the connecting bracket 130 and the frame 110 is fixed. When the connecting bolt and the locking nut are loosened, the locking assembly 400 is unlocked from the frame 110, and the adjustment of the position of the connecting bracket 130 on the frame 110 can be achieved by adjusting the position of the connecting bolt on the adjusting slot 111.

[0060] It can be understood that the locking assembly 400 is not necessarily a bolt and nut structure, and other ways can also be used to achieve the locking and fixing effect. For example, the locking assembly 400 can also be provided as a lock structure with a clamping groove, the male buckle part is inserted into the adjusting slot 111 and connected with the connecting bracket 130, and the female buckle on the frame 110 at different positions is connected to achieve the adjustment of the installation position of the locking assembly 400, thereby fixing the connecting bracket 130 at different positions.

[0061] Referring to Figure 4 As shown, in some implementations, the frame 110 is provided with at least two adjusting slots 111, and each adjusting slot 111 is parallel to each other. The connecting bracket 130 is connected with a plurality of locking assemblies 400, and each adjusting slot 111 is connected with at least one locking assembly 400.

[0062] Compared with the movement direction of the connecting bracket 130 being limited by one adjusting slot 111, the frame 110 is provided with a plurality of adjusting slots 111, which can limit the movement direction of the connecting bracket 130 through the cooperation of the plurality of adjusting slots 111, thereby avoiding the deflection of the installation angle of the connecting bracket 130 during the adjustment of the position of the connecting bracket 130.

[0063] Referring to Figure 3 and Figure 4 As shown, in some implementations, the frame 110 is provided with two adjusting slots 111 extending along a straight line, and two sets of locking assemblies are provided at each adjusting slot 111. That is, the connecting bracket 130 cooperates with the four locking assemblies to achieve the locking of the connecting bracket 130.

[0064] It can be understood that more adjusting slots 111 can also be provided on the frame 110, such as three adjusting slots 111 or four adjusting slots 111, as long as the extension directions of the adjusting slots 111 are parallel.

[0065] Referring to Figure 3 and Figure 4As shown in the drawings, in some embodiments, the extension direction of the adjusting groove 111 is parallel to the moving direction of the knocking structure 300. That is, when adjusting the position of the connecting bracket 130 along the extension direction of the adjusting groove 111, it is equivalent to moving the connecting bracket 130 along the driving direction of the driving assembly 200. Compared with the case that the extension direction of the adjusting groove 111 is inclined to the driving direction of the driving assembly 200, the movement of the driving assembly 200 in the direction perpendicular to the driving direction after the movement of the connecting bracket 130 is avoided.

[0066] As shown in the drawings, Figure 3 and Figure 4 As shown in the drawings, the driving direction of the driving assembly 200 is along the vertical direction, and the extension direction of the adjusting groove 111 is also along the vertical direction. When adjusting the position of the connecting bracket 130 along the adjusting groove 111, the left and right movement of the connecting bracket 130 is avoided, so that the front and back driving directions are along the same straight line.

[0067] In some embodiments, for the driving assembly 200 with the driving direction being the vertical direction, the extension direction of the adjusting groove 111 can also be inclined to the vertical direction, so that the left and right positions of the connecting bracket 130 can also be adjusted during the movement of the connecting bracket 130 along the adjusting groove 111, so that the driving assembly 200 on the connecting bracket 130 can adapt to different horizontal positions of the sample to be demolded.

[0068] In other embodiments, a plurality of horizontally spaced mounting seats 120 can also be installed on the frame 110, and the adjusting groove 111 is directly arranged to extend along the horizontal direction. By adjusting the position of the connecting bracket 130 along the adjusting groove 111 horizontally, the connecting bracket 130 is moved to the upper side of the corresponding mounting seat 120.

[0069] As shown in the drawings, Figures 5 to 7 In some embodiments, the connecting bracket 130 includes a first connecting part 131 and a guide part 132; the driving assembly 200 includes a driving rod 210, a connecting rod 220 and a guide rod 230, the driving rod 210 is rotationally connected with the first connecting part 131, one side of the connecting rod 220 is rotationally connected with the driving rod 210, the other side of the connecting rod 220 is rotationally connected with the guide rod 230, the guide rod 230 is slidingly installed on the guide part 132, and the knocking structure 300 is connected with the guide rod 230.

[0070] As shown in the drawings, Figure 7 The connecting bracket 130 also includes a second connecting part 133, which is in a plate structure, and the first connecting part 131 and the guide part 132 are fixedly connected to the second connecting part 133, and the first connecting part 131, the second connecting part 133 and the guide part 132 are integrally formed.

[0071] That is, the driving rod 210, the connecting rod 220 and the guide rod 230 are configured to form a crank slider structure. It can be understood that the stroke of the slider (the guide rod 230) of the driving slider structure is related to the size of the connecting rod. When the stroke of the guide rod 230 is not suitable for the demolding work of the sample to be demolded, the installation position of the driving slider structure can be adjusted by adjusting the position of the connecting support 130. So that the driving stroke of the driving assembly 200 is sufficient to drive the knocking structure 300 to the sample to be demolded to knock the sample to be demolded.

[0072] In other implementations, the driving assembly 200 can also be arranged as a lever rotatingly installed on the frame 110, the knocking structure 300 is slidingly connected to one side of the lever, and a sliding groove for slidingly installing the knocking structure 300 is arranged on the frame 110. By rotating the lever, the knocking structure 300 is driven to slide on the frame 110, so as to realize the approach or away of the knocking structure 300 to the mounting seat 120, so that the knocking structure 300 can knock the sample to be demolded on the mounting seat 120 for demolding. Wherein, the length of the lever arranged with the knocking structure 300 on one side can be arranged to be smaller than the length of the lever on the force applying side. So that the force arm of the force applying side is larger than the force arm of the force receiving side (the side arranged with the knocking structure 300), to realize the effect of labor saving.

[0073] In use, the driving rod 210 can be rotated to drive the connecting rod 220 to rotate, and then realize the sliding of the guide rod 230 along the guide portion 132. The knocking structure 300 connected to the guide rod 230 knocks the sample to be demolded.

[0074] In some implementations, the driving rod 210 can be manually rotated to flexibly adjust the demolding force. In other implementations, the driving rod 210 can also be driven by a motor to rotate, to reduce the labor intensity of the workers during demolding.

[0075] Referring to Figure 1 and Figure 3 , the rotation axis of the driving rod 210 is parallel to the first face of the frame 110, so that the plane formed by the rotation of the driving rod 210 is perpendicular to the first face of the frame 110. Due to the existence of the first face, the driving rod 210 cannot be completely rotated one circle.

[0076] In other implementations, the rotation axis of the driving rod 210 can also be arranged to be perpendicular to the first face of the frame 110, that is, the driving rod 210 is arranged to rotate in a plane parallel to the first face. The reciprocating rotation of the driving rod 210 driven by the motor can realize continuous knocking of the sample to be demolded. By multiple knocking, the success rate of demolding is improved, and the sample to be demolded cannot be knocked out of the mold by single knocking.

[0077] For the convenience of controlling the demolding tool with the motor, a control button connected with the motor can be installed on the frame 110 to control the start and stop of the motor. When the sample to be demolded needs to be demolded, the control button is pressed to start the motor, the motor drives the driving rod 210 to rotate to move the guide rod 230 along the guide portion 132, and the knocking structure 300 knocks the sample to be demolded out of the mold. After the parts in the sample to be demolded are knocked out of the mold after multiple knockings, the control button can be pressed again to turn off the motor.

[0078] As shown in Figure 1 and Figure 2 shown, in some implementations, the guide portion 132 is a cylindrical structure, and the guide rod 230 is inserted into the guide hole in the center of the guide portion 132, and the hole wall of the guide hole guides the guide rod 230. In other implementations, the guide portion 132 can also be provided as a plate-shaped structure with a guide groove, and the guide rod 230 is provided with a guide protrusion corresponding to the guide groove, which is inserted into the guide groove to limit the movement direction of the guide rod 230. Compared with the conventional guide groove structure, the guide portion 132 with a cylindrical structure is sleeved outside the guide rod 230, which increases the contact area between the guide portion 132 and the guide rod 230, thereby improving the accuracy of the guide and avoiding the deflection of the guide rod 230 relative to the guide direction.

[0079] As shown in Figure 1 and Figure 3 shown, in some implementations, the guide hole of the guide portion 132 has a diameter smaller than the outer diameter of the knocking structure 300. The knocking structure 300 can limit the guide rod 230 from being pulled out of the guide hole of the guide portion 132.

[0080] As shown in Figure 3 and Figure 6 shown, the driving assembly 200 includes two connecting rods 220, which are clamped on opposite sides of the driving rod 210 through the two connecting rods 220 to improve the connection strength between the connecting rods 220 and the driving rod 210. Similarly, the ends of the two connecting rods 220 away from the driving rod 210 are clamped on opposite sides of the guide rod 230, thereby improving the connection strength between the connecting rods 220 and the guide rod 230.

[0081] As shown in Figure 6 shown, in some implementations, the connecting rod 220 is a bent sheet structure, and the two connecting rods 220 are symmetrically arranged along the line connecting the driving rod 210 and the guide rod 230. The connecting rod 220 forms an avoidance groove 221 at the bending portion to avoid interference between the connecting rod 220 and the driving rod 210 during rotation of the connecting rod 220.

[0082] In some implementations, the connecting rod 220 is connected with the driving rod 210 through a rotating pin, and the other end of the connecting rod 220 is connected with the guide rod 230 through another rotating pin. In order to avoid loosening at the rotating connection, a loosening washer can also be arranged between the connecting rod 220 and the driving rod 210.

[0083] As shown in Figure 5 In some implementations, the driving rod 210 includes a crank portion 211 and an extended handle portion 212, one end of the crank portion 211 is rotatably connected with the connecting bracket 130, the other end of the crank portion 211 is rotatably connected with the connecting rod 220, and the extended handle portion 212 is fixedly connected with the crank portion 211, and the length of the extended handle portion 212 is greater than that of the crank portion 211.

[0084] That is, the driving slider structure formed by the driving rod 210, the connecting rod 220 and the guide rod 230 takes the driving portion as a driving force arm to drive the linear movement of the guide rod 230. By fixedly connecting the extended handle portion 212 with a length greater than the driving portion at the crank portion 211, the driving portion can be driven to rotate by rotating the extended handle portion 212 during driving. Compared with the crank portion 211, the extended handle portion 212 with a longer length has a longer force arm and is more labor-saving when rotating.

[0085] As shown in Figure 1 and Figure 5 In some implementations, the end of the extended handle portion 212 away from the driving portion is cylindrical, which is more smooth when holding the extended handle portion 212, and has fewer edges and is more comfortable to operate than the square extended handle portion 212. The extended handle portion 212 can be integrally formed with the crank portion 211 by using the same material, so that the connection between the extended handle portion 212 and the crank portion 211 is more reliable. Alternatively, the extended handle portion 212 and the crank portion 211 can be independently designed, that is, the extended handle portion 212 and the crank portion 211 can be made of different materials, for example, the extended handle portion 212 is made of plastic or rubber, and the crank portion 211 is made of metal material. This can improve the feel of the extended handle portion 212 without affecting the strength of the crank portion 211. At the same time, using plastic material for the extended handle portion 212 also reduces the mass of the extended handle portion 212, so that the operation of the extended handle portion 212 is more relaxed.

[0086] It can be understood that, in order to facilitate force application, anti-slip patterns can also be arranged on the surface of the extended handle portion 212, so as to improve the friction force of holding the extended handle portion 212 and make the operation more relaxed.

[0087] As shown in Figure 1 and Figure 3As shown, in some implementations, the mounting seat 120 and the connecting bracket 130 are both mounted on the first side of the frame 110, and the frame 110 is provided with a reinforcing rib plate 140 on the side away from the first side. That is, the reinforcing rib plate 140 is arranged on the side of the frame 110 away from the mounting seat 120 to improve the strength of the frame 110. Since the reinforcing rib plate 140 is arranged on the side away from the mounting seat 120, the installation of the reinforcing rib plate 140 will not affect the installation of the mounting seat 120, and will also not affect the movement of the driving assembly 200 mounted on the connecting bracket 130.

[0088] As shown in Figure 1 and Figure 2 As shown, two reinforcing rib plates 140 are arranged on the side of the frame 110 away from the first side, and the two reinforcing rib plates 140 are arranged vertically. In other implementations, one of the two reinforcing rib plates 140 can be arranged vertically, and the other reinforcing rib plate 140 can be arranged horizontally, so as to improve the anti-deformation ability of the frame 110 in two directions.

[0089] As shown in Figure 1 and Figure 8 As shown, the frame 110 is further provided with a bottom plate 150 at the bottom, and the bottom plate 150 is further provided with a soft pad 160 at the bottom, which can play a buffering role, thereby reducing the vibration of the demolding tool during the demolding process. In some implementations, the bottom of the bottom plate 150 is provided with four soft pads, so that the soft pad 160 is arranged at each corner of the bottom plate 150. In other implementations, the number of soft pads 160 at the bottom of the bottom plate 150 can be increased according to the gravity of the demolding tool.

[0090] In order to more clearly illustrate the principle of the demolding tool, the operation process of the demolding tool is further described below.

[0091] As shown in Figure 1 and Figure 2 As shown, when it is necessary to use the demolding tool for demolding work, the sample to be demolded needs to be placed on the mounting seat 120 arranged on the frame 110, and the mounting hole of the mounting seat 120 plays a limiting role on the mold to avoid the mold from falling during the knocking process.

[0092] After the sample to be demolded including the mold is installed, the operator lifts the extension handle part 212 of the driving rod 210, so that the crank part 211 perpendicular to the extension handle part 212 rotates towards the front side relative to the connecting bracket 130.

[0093] And since one end of the connecting rod 220 is rotationally connected with the crank portion 211 of the driving rod 210, and the other end is rotationally connected with the guide rod 230 slidingly installed in the guide portion 132, when the driving portion rotates relative to the connecting support 130 towards the front side, the connecting rod 220 will rotate synchronously, and the connecting rod 220 will gradually move downwards during the rotation, driving the guide rod 230 slidingly installed in the guide portion 132 to move downwards to approach the support base located below the connecting support 130. Figure 2 The middle dotted line portion is the position of the driving rod 210 and the connecting rod 220 after the driving rod 210 is lifted upwards.

[0094] Since the guide rod 230 will move downwards, the knocking structure 300 installed on the guide rod 230 can be driven to move downwards to approach the support base, until the knocking structure 300 contacts the sample to be demolded on the support base, so as to realize the hammering of the sample to be demolded by the knocking structure 300. Through the force provided by the hammering, the part embedded in the mold can be separated from the mold, and the demolding of the sample to be demolded is completed.

[0095] After the hammering of the sample to be demolded is completed, the elongated handle portion 212 of the driving rod 210 can be rotated downwards to restore the elongated handle portion 212 to the initial position, and the gravity of the elongated handle portion 212 can be used to keep the guide rod 230 in the lifted state, so as to avoid the guide rod 230 from falling under the action of gravity.

[0096] Since the connecting support is provided with the guide portion, the movement direction of the guide rod and the knocking structure can be limited, the falling point position of the hammering can be stabilized, and the hammering deviation to the mold due to the hammering can be greatly reduced compared with manual hammering. Moreover, since the sample to be demolded is hammered by the knocking structure, the damage to the sample to be demolded is smaller during the hammering, and the mold damage or sample damage caused by demolding is avoided, the cost of metallographic testing is reduced, and the damage to the sample is reduced.

[0097] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the present application, and equivalent substitutions can be made to the components thereof. In particular, as long as there is no structural conflict, each of the technical features mentioned in each of the embodiments can be combined in any manner. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A mold release tool characterized by, It comprises: a mounting assembly comprising a mounting seat for mounting a sample to be demolded; a driving assembly mounted on the mounting assembly, the driving assembly being connected with a knocking structure, the knocking surface of the knocking structure being a flexible knocking surface, the driving assembly being used to make the knocking structure close to or away from the mounting seat to knock the sample to be demolded on the mounting seat; the mounting assembly comprises a frame body, the mounting seat is mounted on the frame body, and a connecting bracket is also mounted on the frame body, the spacing between the connecting bracket and the mounting seat being adjustable; the driving assembly is mounted on the connecting bracket; the connecting bracket comprises a first connecting part and a guide part; the driving assembly comprises a driving rod, a connecting rod and a guide rod, one end of the driving rod being rotatably connected with the first connecting part, one side of the connecting rod being rotatably connected with the driving rod, the other side of the connecting rod being rotatably connected with the guide rod, the guide rod being slidably mounted on the guide part, and the knocking structure being connected with the guide rod; the driving rod comprises a crank part and an extension handle part, one end of the crank part being rotatably connected with the connecting bracket, the other end of the crank part being rotatably connected with the connecting rod, and the extension handle part being fixedly connected with the crank part, the length of the extension handle part being greater than the length of the crank part.

2. The demolding tool according to claim 1, wherein the driving assembly and the knocking structure are detachably connected.

3. The demolding tool according to claim 1, wherein the knocking structure is wrapped around one end of the driving assembly towards the mounting seat.

4. The demolding tool according to any one of claims 1-3, wherein an adjusting groove is formed on the frame body, the connecting bracket is connected with a locking assembly, the locking assembly is slidably connected with the adjusting groove, and the locking assembly can be locked or unlocked with the frame body.

5. The demolding tool according to claim 4, wherein at least two adjusting grooves are formed on the frame body, and each adjusting groove is parallel to each other; the demolding tool comprises a plurality of locking assemblies, each locking assembly being connected with the connecting bracket, and each adjusting groove being connected with at least one locking assembly.

6. The demolding tool according to claim 4, wherein the extension direction of the adjusting groove is parallel to the moving direction of the knocking structure.

7. The demolding tool according to any one of claims 1-3, wherein the mounting seat and the connecting bracket are both mounted on the first face of the frame body, and the frame body is provided with a reinforcing rib plate on the side away from the first face.

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