Multifunctional sample forming mold with movable slot

Abstract

The present invention relates to a movable groove multifunctional sample forming mold, comprising a connecting rod base, a movable groove part, an extrusion sleeve, and an extrusion nut. The connecting rod base comprises a base and a connecting rod, the connecting rod is arranged on the base, the movable groove part passes through the connecting rod and is movably installed on the base, a positioning mechanism is arranged between the movable groove part and the base, the extrusion sleeve passes through the connecting rod and is pressed on the movable groove part, the upper part of the connecting rod is provided with a thread matching with the extrusion nut, the extrusion nut is screwed into the connecting rod for pressing the extrusion sleeve, and a sample groove is formed between the base, the movable groove part, the extrusion sleeve and the connecting rod. The present invention can be used for molding and forming various types of annular samples, O-rings, and various types of sealing gaskets; during the use of this device, demoulding can be a slow process, thereby reducing damage to the sample and reducing the product defect rate, and it can be reused.

Description

Technical Field

[0001] The invention belongs to the technical field of mold forming, and in particular relates to a sample preparation and a forming and demoulding device for various columnar, ring-shaped and washer-shaped sample parts. Background Art

[0002] Cylindrical and ring-shaped specimens are important application specimens and accessories, widely used in the socketing of various mechanical parts and fasteners and some special occasions. It generally includes hollow cylindrical, gasket-shaped and O-ring-shaped specimen products, which can be used for socketing, sealing and coaxial sleeves. The molding process requires the use of molding molds.

[0003] At present, the molding of circular groove samples is still limited to samples that are easy to demold. For samples that are difficult to demold, the circular groove mold is easy to damage the sample, but it may still be difficult to demold. For the molding of samples that are difficult to demold, in order to overcome the problem of demolding difficulty, the molding mold currently used is generally a disposable mold, and the sample is taken out by destroying the mold. The method of fixing the upper and lower parts of the integrated groove is adopted. Although the above method of molding can realize the molding of the components, it has the following problems.

[0004] (1) Due to tension, expansion and extrusion, smooth demolding is the most troublesome part of obtaining a complete sample. When breaking the mold, it may cause great damage to the sample product. And when there are many types of molded parts, changing the mold takes a lot of time.

[0005] (2) It needs to be used repeatedly. Single-mold single-use causes a certain degree of waste in the production of molding mold materials; and it is not conducive to repeated sample change and sample making. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention aims to provide a multifunctional sample molding mold with a movable groove, which can be used for molding various annular samples, O-rings, and various sealing gaskets; it reduces damage to samples and reduces product defective rates, and can be reused.

[0007] The present invention is achieved through the following technical solutions.

[0008] At present, there are two main ways to form samples, including columnar and block-shaped. The block-shaped method is relatively simple and easy to mold and process samples. The shape of hollow columnar samples is relatively complex, and the sample acquisition process is more difficult than that of square samples.

[0009] A movable groove multifunctional sample forming mold comprises a connecting rod base, a movable groove part, an extrusion sleeve, and an extrusion nut. The connecting rod base comprises a base and a connecting rod. The connecting rod is arranged on the base. The movable groove part passes through the connecting rod and is movably installed on the base. A positioning mechanism is provided between the movable groove part and the base. The extrusion sleeve passes through the connecting rod and is pressed on the movable groove part. The upper part of the connecting rod is provided with a thread that cooperates with the extrusion nut. The extrusion nut is screwed into the connecting rod to compress the extrusion sleeve. A sample groove is formed between the base, the movable groove part, the extrusion sleeve and the connecting rod.

[0010] Preferably, it also includes a limiting tool, the limiting tool (5) is "U"-shaped, and the limiting tool is provided with a step groove with a "T"-shaped cross section, which is used to clamp the movable groove part when the sample is demoulded after molding and allow the molded sample to pass through.

[0011] Preferably, the extrusion sleeve includes an extrusion end and an extrusion end, the outer diameter of the extrusion end is larger than the outer diameter of the extrusion end; the outer diameter of the extrusion end is larger than the inner diameter of the movable groove part, and is used to form the upper cover of the sample groove; the outer diameter of the extrusion end is not larger than the inner diameter of the movable groove part, and is used to extrude the sample after the sample is formed.

[0012] Preferably, the outer diameter of the extrusion end is equal to or slightly smaller than the inner diameter of the movable groove member.

[0013] Preferably, the movable slot member includes an outer member and an inner member, the inner member is clamped inside the outer member by a second positioning mechanism, a first positioning mechanism is arranged between the bottom of the outer member and the top of the base, and the inner member is a replaceable sample molding member.

[0014] Preferably, a screw position is provided on the outer side of the outer component to facilitate the use of tools for locking and rotating.

[0015] Preferably, a screw position is provided on the outer side of the base to facilitate the use of tools for positioning and rotation.

[0016] Preferably, the extrusion nut is a butterfly nut.

[0017] Preferably, the positioning mechanism is annular, so that the axes of the movable groove member and the connecting rod base coincide with each other, and the movable groove member and the connecting rod base can rotate relative to each other.

[0018] Some of the tools can be replaced by other components that meet the required geometry, size and bearing capacity during the actual operation. For example, the auxiliary tool for limiting can be replaced by a component that meets the size requirements and pressure bearing capacity.

[0019] The multifunctionality of this mold is reflected in the functions of forming mold, screw extrusion during forming, screw demoulding, multi-type specimens, repeated use, etc. It is suitable for the preparation of non-giant specimens. According to the specific application, the components can be made of a variety of materials. It is recommended to use a full set of metal materials, such as a full set of metal copper materials, which can be made into a universal specimen tool. Plastic and metal can be used to make accessories, but the connecting rod base and butterfly nut bear the function of screw extrusion and need to be made of metal with better strength.

[0020] The following are the appearance and assembly drawings of the components of the movable slot multifunctional sample molding mold, but it is not limited to the appearance, but more about its movable slot, multifunctionality and sample molding, as well as the ingenious use of the screw extrusion working principle in its working process, and its strength process is uniform and the speed is controllable.

[0021] Compared with the prior art, the advantages of the present invention are: the present invention can be used for molding various annular samples, O-rings, and various sealing gaskets; during the use of this device, demoulding can be a slow process, thereby reducing damage to the sample and reducing the product defective rate, and the device can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the mold appearance of the present invention;

[0023] Figure 2 It is a cross-sectional view of the mold of the present invention;

[0024] Figure 3 It is the mold-closing explosion diagram of the present invention;

[0025] Figure 4 It is a schematic diagram of the demoulding appearance of the present invention;

[0026] Figure 5 It is a demoulding cross-sectional view of the present invention;

[0027] Figure 6 The appearance and various views of the connection base of the present invention;

[0028] Figure 7 The appearance and various views of the movable slot of the present invention;

[0029] Figure 8 The appearance and various views of the extrusion sleeve of the present invention;

[0030] Fig. 9 The appearance and various views of the extrusion nut of the present invention;

[0031] Fig.10 The appearance and various views of the limiting tool of the present invention;

[0032] Fig.11 A top view of the limiting tool of the present invention;

[0033] Fig.12 The demoulding position and demoulding sequence of the sample of the present invention Figure 1 ;

[0034] Fig.13 The demoulding position and demoulding sequence of the sample of the present invention Figure 2 ;

[0035] Fig.14 The demoulding position and demoulding sequence of the sample of the present invention Figure 3 ;

[0036] Fig.15 The demoulding position and demoulding sequence of the sample of the present invention Figure 4 ;

[0037] Fig.16 The demoulding position and demoulding sequence of the sample of the present invention Figure 5 ;

[0038] Fig.17 The demoulding position and demoulding sequence of the sample of the present invention Figure 6 ;

[0039] Fig.18 The demoulding position and demoulding sequence of the sample of the present invention Figure 7 ;

[0040] Fig.19 The demoulding position and demoulding sequence of the sample of the present invention Figure 8 ;

[0041] In the figure: 1, connecting rod base, 2, movable groove part, 3, extrusion sleeve, 4, extrusion nut, 5, limiting tool, 6, sample slot, 7, sample;

[0042] 101. base, 102. connecting rod, 103. positioning mechanism 1;

[0043] 201, outer part, 202, inner part, 203, positioning mechanism 2;

[0044] 301, extrusion end, 302, extrusion end;

[0045] 501. “T” shaped step groove. DETAILED DESCRIPTION

[0046] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0047] like Figures 1 to 11As shown, a movable groove multifunctional sample forming mold includes a connecting rod base 1, a movable groove part 2, an extrusion sleeve 3, and an extrusion nut 4. The connecting rod base 1 includes a base 101 and a connecting rod 102. The connecting rod 102 is arranged on the base 101. The movable groove part 2 is movably installed on the base 101 through the connecting rod 102. A positioning mechanism 103 is provided between the movable groove part 2 and the base 101. The extrusion sleeve 3 passes through the connecting rod 102 and is pressed on the movable groove part 2. The upper part of the connecting rod 102 is provided with a thread that cooperates with the extrusion nut 4. The extrusion nut 4 is screwed into the connecting rod 102 to compress the extrusion sleeve 3. A sample groove 6 is formed between the base 101, the movable groove part 2, the extrusion sleeve 3 and the connecting rod 102.

[0048] Preferably, it also includes a limiting tool 5, wherein the limiting tool (5) is in a "U" shape (such as Fig.10 The limiting tool 5 is provided with a step groove 501 with a "T"-shaped cross section, which is used to clamp the movable groove member 2 when the sample is demoulded after molding and allow the molded sample to pass through.

[0049] Preferably, the extrusion sleeve 3 includes an extrusion end 301 and an extrusion end 302, the outer diameter of the extrusion end 301 is larger than the outer diameter of the extrusion end 302; the outer diameter of the extrusion end 301 is larger than the inner diameter of the movable groove part 2, and is used to form the upper cover of the sample groove 6; the outer diameter of the extrusion end 302 is not larger than the inner diameter of the movable groove part 2, and is used to extrude the sample after the sample is formed.

[0050] Preferably, the outer diameter of the extrusion end 302 is equal to or slightly smaller than the inner diameter of the movable groove member 2 .

[0051] Preferably, the movable slot member 2 includes an outer member 201 and an inner member 202, the inner member 202 is clamped inside the outer member 201 through a positioning mechanism 203, a positioning mechanism 103 is provided between the bottom of the outer member 201 and the top of the base 101, and the inner member 202 is a replaceable sample molding member.

[0052] Preferably, a screw position is provided on the outer side of the outer member 201 to facilitate the use of tools for positioning and rotation.

[0053] Preferably, a screw position is provided on the outer side of the base 101 to facilitate the use of tools for positioning and rotation.

[0054] Preferably, the extrusion nut 4 is a butterfly nut.

[0055] Preferably, the positioning mechanism 103 is annular, so that the axes of the movable groove member 2 and the connecting rod base 1 coincide with each other, and the movable groove member 2 and the connecting rod base 1 can rotate relative to each other.

[0056] At present, there is no invention patent that adopts the design method of movable groove, and there is no sample molding mold for screw extrusion in the current patent.

[0057] The patent of the present invention applies pressure-free forming and demoulding, and also provides a pressurized forming method and a demoulding method.

[0058] For flexible samples, they can be directly removed with the help of auxiliary tools such as auxiliary tweezers, but the kit can also be used to achieve molding and demoulding.

[0059] 1. Sample molding and extrusion

[0060] The molding state of the empty mold of the present invention is as follows Figure 2 As shown, the mold completes the pre-assembly of the connecting rod base 1 and the sample slot 6. The assembly sequence is: first, the movable slot part 2 is inserted into the connecting rod 102, and the movable slot part 2 and the base 101 are relatively fixed by the positioning mechanism 103; after the sample casting is completed, for the sample to be extruded, the extrusion sleeve 3 can be inserted into the connecting rod 102, the extrusion end 301 of the extrusion sleeve 3 faces the sample slot 6, and the extrusion nut 4 is screwed on. By slowly tightening the extrusion nut, the sample slot 6 is extruded and the sample is formed.

[0061] (II) Sample demoulding position and demoulding order

[0062] 1. Unscrew the extrusion nut 4, such as Fig.12 As shown;

[0063] 2. Remove the extrusion sleeve 3, such as Fig.13 As shown;

[0064] 3. Twist the movable groove member 2 and the connecting rod base 1 relative to each other to separate the movable groove member 2 and the sample from the upper supporting surface of the connecting rod base 1; and make the sample and the sample groove 6 deviate upward from the supporting surface of the base 101 by a short distance; Fig.14 As shown;

[0065] 4. After the base 101 is separated from the sample slot 6, a limiting tool 5 can be placed between the base 101 and the sample slot 6, and the limiting tool 5 is placed, such as Fig.15 As shown;

[0066] 5. Insert the extrusion sleeve 3 into the connecting rod and make its extrusion end 302 face the sample slot 6, then screw on the extrusion nut 4 and quickly tighten it to the extrusion sleeve 3 and the limiting tool 5, as shown in the figure. Fig.16 As shown;

[0067] 6. After that, the extrusion nut 4 is difficult to rotate and needs to be rotated slowly or with the help of a tool. The extrusion force of the connecting rod rotation is used to slowly squeeze the sample out of the sample slot 6. Fig.17 As shown;

[0068] 7. After the sample is completely out of the groove, unscrew the extrusion nut 4, remove the extrusion sleeve 3, the limiting tool 5 and the movable groove part 2, and then slowly unscrew the sample manually or with the help of tools for later use. Fig.18 and Fig.19 shown.

[0069] Now, we take the preparation of hollow cylindrical specimens for electromagnetic testing as an example to illustrate the problems in application. Figures 11 to 18 As shown, after injection molding, unscrew the butterfly nut and remove the extrusion sleeve. Due to the expansion of the sample during the molding process, the movable groove part and the connecting rod part will be squeezed and held tightly and cannot be easily removed. In this case, a wrench can be used to tighten the screw position at the bottom of the connecting rod base and the outer ring of the movable groove part to separate the sample and the sample groove from the upper support surface of the connecting rod base, and make the sample and the sample groove deviate upward from the support surface of the base by a small distance, so that a limiting tool can be placed between the base and the sample groove surface. Insert the extrusion end of the extrusion sleeve suitable for the sample into the connecting rod toward the sample groove, screw on the butterfly nut, and quickly tighten it to the extrusion sleeve and the limiting tool. After that, it is difficult to rotate the butterfly nut, and it needs to be rotated slowly or with the help of a tool. The extrusion force of the screw rotation is used to slowly squeeze the sample out of the groove. After it is completely out of the groove, unscrew the butterfly nut, and remove the extrusion sleeve, limiting tool and movable groove part. Then, the sample can be slowly unscrewed manually or with the help of a tool for standby use.

[0070] Some other places to explain are that the square support at the bottom is convenient for the wrench to connect and the placement and fixation of the entire kit. The sample slot is movable to solve the problem of sample expansion and squeezing. The sample slot can be adjusted according to the thickness of the sample and can be deepened to form a cylindrical sample. It can be designed as an O-ring shape and the cross-section can be other required shapes according to requirements. The outer ring of the sample slot is designed to be square for easy wrench connection. In case the formed sample forms suction or it is difficult to remove the extrusion sleeve, the circular outer ring of the extrusion end of the extrusion sleeve can be modified to a square or a nut design, and a screw position can be set so that it can be loosened with the help of tools or directly unscrewed.

[0071] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. The movable slot multifunctional sample forming mold is characterized by: The invention comprises a connecting rod base (1), a movable groove member (2), an extrusion sleeve (3), and an extrusion nut (4), wherein the connecting rod base (1) comprises a base (101) and a connecting rod (102), wherein the connecting rod (102) is arranged on the base (101), wherein the movable groove member (2) passes through the connecting rod (102) and is movably mounted on the base (101), wherein a positioning mechanism (103) is arranged between the movable groove member (2) and the base (101), wherein the extrusion sleeve (3) passes through the connecting rod (102) and is pressed on the movable groove member (2), wherein the upper part of the connecting rod (102) is provided with a thread matching with the extrusion nut (4), wherein the extrusion nut (4) is screwed into the connecting rod (102) and is used to press the extrusion sleeve (3), and wherein a sample slot (6) is formed between the base (101), the movable groove member (2), the extrusion sleeve (3), and the connecting rod (102); It also includes a limiting tool (5), which is in a "U" shape and is provided with a step groove with a "T"-shaped cross section, which is used to clamp the movable groove part (2) when the sample is demoulded after molding and allows the molded sample to pass through; The extrusion sleeve (3) comprises an extrusion end (301) and an extrusion end (302); the outer diameter of the extrusion end (301) is larger than the outer diameter of the extrusion end (302); the outer diameter of the extrusion end (301) is larger than the inner diameter of the movable groove member (2) and is used to form the upper cover of the sample groove (6); the outer diameter of the extrusion end (302) is not larger than the inner diameter of the movable groove member (2) and is used to extrude the sample after the sample is formed; The outer diameter of the extrusion end (302) is equal to or slightly smaller than the inner diameter of the movable groove member (2).

2. The movable groove multifunctional sample forming mold according to claim 1, characterized in that: The movable groove member (2) comprises an outer member (201) and an inner member (202); the inner member (202) is clamped inside the outer member (201) by a second positioning mechanism (203); a first positioning mechanism (103) is arranged between the bottom of the outer member (201) and the top of the base (101); the inner member (202) is a replaceable sample molding member; a plurality of contact surfaces are formed between the sample molding member and the sample; the molding member is a movable member relative to the peripheral fixed member of the mold and can be removed together with the sample.

3. The movable slot multifunctional sample forming mold according to claim 2, characterized in that: The outer side of the outer part (201) is provided with a screw position to facilitate the use of tools for locking and rotating.

4. The movable slot multifunctional sample forming mold according to claim 1, characterized in that: The outer side of the base (101) is provided with a screw position to facilitate the use of tools for locking and rotating.

5. The movable slot multifunctional sample forming mold according to claim 1, characterized in that: The extrusion nut (4) is a butterfly nut.

6. The movable slot multifunctional sample forming mold according to claim 1, characterized in that: The first positioning mechanism (103) is annular, so that the axes of the movable groove member (2) and the connecting rod base (1) coincide with each other, and the movable groove member (2) and the connecting rod base (1) can rotate relative to each other.

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