Demolding device

Abstract

The utility model relates to a kind of stripping devices, comprising: first bearing, second bearing, driving mechanism and reset piece, wherein, first bearing has with the first surface opposite second bearing, second bearing has with the second surface opposite first bearing, first surface and second surface between being adapted to set mould, first surface or second surface is provided with the positioning part for abutting and positioning mould;Driving mechanism drives at least one of first bearing and second bearing, so that first bearing and second bearing move towards each other;Reset piece is arranged between first bearing and second bearing, and first bearing and / or second bearing after driving can be reset. By using the stripping device of the utility model, the internal stress of the mould is more uniform during the entire stripping process, and it is easier to achieve successful stripping. Moreover, the stripping device is simple in structure, easy to manufacture and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the technical field of powder tablet production, and more specifically to a demolding device for demolding tablets formed in a mold. Background Technology

[0002] The pelleting method is a widely used laboratory testing method for determining the properties of solid pellets, applicable to many key fields such as chemical engineering, materials science, and biomedicine. For solid samples that are easily broken, pulverized, or require a specific morphology for subsequent analysis, the pelleting method uses a pelleting die to transform the raw material into pellets of uniform size and compact structure, providing a sample basis for subsequent component analysis and physical property testing. For example, raw material powder is spread in a pelleting die with a cylindrical inner wall, and pressure is applied to the upper and lower ends of the cylindrical die to compress the powder into a circular sheet.

[0003] After tableting is completed using the compression method, the existing method for demolding tablets typically involves manually turning the screw on the press. This method is labor-intensive, and because the screw pressure is difficult to control precisely, it can easily cause scratches, cracks, or even complete damage to the tablet surface during demolding, affecting the integrity of the tablet and the accuracy of subsequent tests. Utility Model Content

[0004] In view of the above problems, this utility model provides a demolding device, which drives the first and second bearing members to move in opposite directions through a driving mechanism, so that the two ends of the mold are subjected to force, and the pressing sheet inside the mold is pressed out of the mold cavity to complete the demolding of the pressing sheet, without directly applying force to the pressing sheet, thus ensuring the integrity of the pressing sheet.

[0005] To this end, the present invention provides a demolding device, comprising: a first support member and a second support member, the first support member having a first surface opposite to the second support member, the second support member having a second surface opposite to the first support member, a mold being disposed between the first surface and the second surface, and a positioning portion for abutting and positioning the mold being provided on the first surface or the second surface; a driving mechanism configured to drive at least one of the first support member and the second support member to move toward each other; and a reset member disposed between the first support member and the second support member, the reset member being configured to reset the first support member and / or the second support member after being driven to move toward each other.

[0006] Based on the above technical concept, the present invention may further include any one or more of the following optional forms.

[0007] In some alternative forms, the demolding device further includes at least one slide bar, and at least one of the first and second carrier members is provided with a through hole through which the slide bar passes, so that the first and second carrier members are adapted to move toward or away from each other along the slide bar.

[0008] In some alternative forms, one of the first and second carriers is fixedly connected to the slide column, and the other of the first and second carriers is slidable along the slide column.

[0009] In some alternative forms, the reset element includes a spring that is sleeved on the slide and compressed against the first and second carriers.

[0010] In some alternative forms, the drive mechanism includes a lifting mechanism that abuts against a third surface of one of the first and second carriers opposite to the other, to drive the first and second carriers to move toward each other.

[0011] In some alternative forms, there are multiple sliding columns that extend vertically, and the first and second support members are configured as parallel plate structures, wherein the first support member is fixedly connected to the multiple sliding columns, and the second support member is slidable along the multiple sliding columns; and / or, the lifting mechanism is a hydraulic jack.

[0012] In some alternative forms, the third surface is provided with a first recess for abutting and positioning the lifting mechanism.

[0013] In some alternative forms, the demolding device further includes a plate opposite the third surface and adapted to house the drive mechanism.

[0014] In some alternative forms, the positioning portion is disposed on a surface opposite to the third surface and includes a second recess for placing and positioning the mold.

[0015] In some alternative forms, the depth of the second recess is set to 1 to 3 mm.

[0016] Compared with the prior art, the demolding device according to this utility model can produce several beneficial technical effects, especially: the mold is set between the first surface and the second surface, and the first and second bearing members are driven to move towards each other by the driving mechanism to achieve demolding. The mold is subjected to uniform force throughout the demolding process, making it easier to achieve complete demolding. The positioning part on the first surface or the second surface limits the mold. By limiting the mold by the positioning part, uneven force on the mold during demolding is further avoided, and the success rate of demolding is improved. Furthermore, the reset part is provided for the first bearing member and / or the second bearing member, so that the demolding device can be reset after demolding for the next demolding. Attached Figure Description

[0017] Other features and advantages of this invention will be better understood through the following detailed description of preferred embodiments in conjunction with the accompanying drawings. In the drawings, the same reference numerals denote the same or similar parts.

[0018] Figure 1 This is a schematic diagram of the demolding device provided in one embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram showing the mold placed on the demolding device.

[0020] Figure 3 This is a schematic diagram of the structure of the first support component of the demolding device.

[0021] Figure 4 This is a structural schematic diagram of the first load-bearing component from another angle.

[0022] Figure 5 For along Figure 2 The schematic diagram of the cross-sectional structure taken from section AA shows the demolding device in the demolding start state.

[0023] Figure 6 For along Figure 2 The cross-sectional structure diagram is taken from section AA, in which the demolding device is in the demolding completed state.

[0024] The elements in the accompanying drawings are shown for simplicity and clarity and are not necessarily drawn to exact scale. It should be understood that these drawings are not only for explaining and illustrating the present invention, but also, where necessary, for defining the present invention. Detailed Implementation

[0025] The implementation and use of specific embodiments are discussed in detail below. However, it should be understood that the specific embodiments discussed are merely illustrative of particular ways of implementing and using this utility model, and are not intended to limit the scope of this utility model.

[0026] The directional and positional terms used in this utility model can be referred to as follows: Figures 1 to 6 The exemplary structures shown are explained below. Directional terms such as "upper" and "lower" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting terms on the scope of protection of this application. Terms such as "first," "second," and "third" are used to describe various elements without intending to limit the positional, temporal, or importance relationships of these elements; such terms are merely used to distinguish one element from another.

[0027] The preferred embodiments of this utility model will now be described with reference to the accompanying drawings.

[0028] Figure 1 A demolding device 10 is shown. For example... Figure 1 As shown, the demolding device 10 includes a first support member 100, a second support member 200, a drive mechanism 300, and a reset member 400. The first support member 100 and the second support member 200 are used to arrange the mold, the drive mechanism 300 is used to make the first support member 100 and the second support member 200 move towards each other to achieve mold demolding, and the reset member 400 is used to assist the first support member 100 and the second support member 200 in moving away from each other to achieve the reset of the demolding device 10.

[0029] Specifically, in combination Figure 1 and Figure 2The surface of the first support member 100 facing the second support member 200 is defined as the first surface 101, and the surface of the second support member 200 facing the first support member 100 is defined as the second surface 201. The mold 20 is disposed between the first surface 101 and the second surface 201, and a positioning part 120 for abutting and positioning the mold 20 is provided on the surface on which the mold 20 is placed (the first surface 101 or the second surface 201). The driving mechanism 300 can drive any one or both of the first support member 100 and the second support member 200 to move towards each other, thereby allowing the first surface 101 and the second surface 201 to abut against the two ends of the mold 20 respectively until the mold 20 is demolded. Then, the drive mechanism 300 stops its active action on the first support member 100 and the second support member 200. After the first support member 100 and the second support member 200 no longer move towards each other, the reset member 400, which is located between the first support member 100 and the second support member 200, drives the first support member 100 and / or the second support member 200 to the initial position, completing the reset. With the demolding device 10 provided by this utility model, the internal force of the mold 20 is more uniform throughout the demolding process, making successful demolding easier. The positioning part 120 limits the mold 20, further avoiding uneven force on the mold during demolding and increasing the probability of complete demolding. The distance between the first support member 100 and the second support member 200 can be flexibly adjusted, making it suitable for various mold models. Furthermore, this demolding device has a simple structure, is easy to manufacture, and is convenient to operate.

[0030] In some embodiments, the demolding device 10 further includes at least one slide post 500. At least one of the first support member 100 and the second support member 200 is provided with a through hole 130. The slide post 500 passes through the through hole 130, allowing the first support member 100 and the second support member 200 to move towards or away from each other along the slide post. To make the demolding device 10 simple in structure and easy to manufacture, one of the first support member 100 and the second support member 200 is fixedly connected to the slide post 500, and the other of the first support member 100 and the second support member 200 is provided with a through hole 130, allowing the other support member to slide along the slide post 500 through the through hole 130. The reset member 400 can also preferably be configured as a spring 410. Figure 1In the demolding device 10 shown, springs 410 are sleeved on corresponding sliding pillars 500, and both are compressed and abut against the first support member 100 and the second support member 200. During demolding, the springs 410 act as dampers, making the force on the mold 20 more even. They also absorb energy and release it evenly on the first support member 100 and the second support member 200 after demolding, assisting the demolding device 10 in resetting. More specifically, the driving mechanism 300 includes a lifting mechanism that abuts against a third surface 102 of one of the first support member 100 and the second support member 200, opposite to the other, to drive the first support member 100 and the second support member 200 to move towards each other. The demolding device 10 further includes a plate 600, which faces the third surface 102 and is used to house the driving mechanism 300. Preferably, to make the force applied to the mold 20 by the demolding device 10 more even, multiple sliding pillars 500 extending vertically can be provided. The first support member 100 and the second support member 200 can be configured as parallel plate structures, for example, as horizontal flat plates. The first support member 100 is fixedly connected to a plurality of sliding columns 500, and the second support member 200 is slidable along the plurality of sliding columns 500, allowing the second support member 200 to be vertically aligned with or away from the first support member 100. The lifting mechanism can be configured, for example, as... Figure 2 The hydraulic jack shown.

[0031] In the illustrated embodiments, for example Figure 2 As shown, four sliding pillars 500 are respectively provided at the four corners of the horizontally placed first support member 100, second support member 200, and plate 600. The four corners of the second support member 200 are fixedly connected to one end of the corresponding sliding pillar 500, and the four corners of the plate 600 are fixedly connected to the other end of the corresponding sliding pillar 500. Through holes 130 are provided at the four corners of the first support member 100, and each sliding pillar 500 passes through the through hole 130, allowing the first support member 100 to slide along the sliding pillar 500 to move closer to or away from the second support member 200. A spring 410 is fitted onto each sliding pillar 500, and the spring 410 abuts against the first support member 100 and the second support member 200 respectively. A lifting mechanism is placed on the plate 600, and the working end of the lifting mechanism abuts against the third surface 102 of the first support member 100, which is opposite to the second support member 200. Figure 3 and Figure 4The first surface 101 and the third surface 102 of the first support member 100 are shown respectively. A first recess 110 is provided on the third surface 102 to abut and position the lifting mechanism. A positioning part 120 is provided on the first surface 101 opposite to the third surface 102. The positioning part 120 includes a second recess for placing and positioning the mold 20. The depth of the second recess is, for example, 1-3 mm, and the shape of the second recess can be set with reference to the contour of the mold 20 placed on the first surface 101. In this way, the mold 20 can be placed more stably on the demolding device 10, making the force on the mold 20 more uniform during demolding and improving the success rate of demolding by the demolding device 10.

[0032] Figure 2 , Figures 5-6 Taking a common tableting mold for pressing powder into thin sheets as an example, the application of the demolding device 10 provided by this utility model is further introduced. Figure 5 and Figure 6 All along Figure 2 A schematic diagram of the cross-sectional structure taken from section AA, wherein, Figure 5 The mold is in the initial stage of tablet demolding. Figure 6 The mold is in the tableting and demolding completed state. Those skilled in the art should know that, besides the tableting mold shown in the figure, there are other similar structures for tableting molds, all of which are basically applicable to the demolding device 10 proposed in this utility model. Specifically, Figure 5 The mold sleeve 210 of the mold 20 shown has a through mold cavity 211, and a countersunk platform 212 is provided at one end of the mold cavity 211. Before the mold 20 is ready for pressing, the mold sleeve 210 is designed to... Figure 5 In the inverted state shown, firstly, the mold base (not shown) is placed on the countersunk 212 of the mold sleeve 210, so that the bottom surface of the mold sleeve 210 near the countersunk 212 is filled. Then, the first gasket 230 is placed from the other end of the mold cavity 211 of the mold sleeve 210. After the first gasket 230 is placed flat, the powder to be pressed is poured into the mold cavity 211 of the mold sleeve 210. Then, the second gasket 240 is placed into the mold cavity 211. After the second gasket 240 is placed flat, the punch 230 is inserted into the mold cavity 211 and pressed on the second gasket 240. At this time, the punch 230 will protrude from the mold cavity 211. The above mold structure is placed in a press (not shown), and pressure is applied to the mold structure with both ends of the press to compress the powder into a pressed sheet 30. Remove the mold structure from the press, remove the mold base, and attach the demolding sleeve 220 with an internal cavity 221 to the countersunk platform 212 of the mold sleeve 210, so that the cavity 221 aligns with the mold cavity 211 to form the mold 20 in the demolding state of this utility model.

[0033] During demolding, the punch 230 of the mold 20 abuts against and is fixed on the positioning part 120 of the first support member 100, and the drive mechanism 300 is activated, causing the first support member 100 and the second support member 200 to move towards each other. (Continue to refer to...) Figure 5 , Figure 5 The second support member 200 is pressed against one end of the mold 20 (i.e., against the ejector sleeve 220). In this state, the first support member 100 and the second support member 200 continue to move towards each other via the drive mechanism 300. At this time, the punch 230 will slide in the mold cavity 211, causing the first pad 230, the pressure plate 30, and the second pad 240 to move together toward the cavity 221 of the ejector sleeve 220 until the pressure plate 30 slides out of the mold cavity 211 into the cavity 221 of the ejector sleeve 220. Figure 6 The demolding process is shown in the diagram. After demolding, the connection between the drive mechanism 300 and the first support member 100 is removed. The first support member 100 is reset by the push of the reset member 400 and its own gravity. Then the mold and the demolded sheet can be removed.

[0034] The technical content and features of this utility model have been disclosed above. However, it is understood that under the creative concept of this utility model, those skilled in the art can combine different embodiments or examples and features of different embodiments or examples described in this utility model, but all of them fall within the protection scope of this utility model.

[0035] The above description of the embodiments is exemplary and not restrictive, and the scope of protection of this utility model is determined by the claims.

Claims

1. A demolding device (10), characterized in that, include: A first support member (100) and a second support member (200), the first support member (100) having a first surface (101) opposite to the second support member (200), the second support member (200) having a second surface (201) opposite to the first support member (100), a mold (20) being adapted to be disposed between the first surface (101) and the second surface (201), and a positioning part (120) for abutting and positioning the mold (20) being provided on the first surface (101) or the second surface (201). A drive mechanism (300) configured to drive at least one of the first carrier (100) and the second carrier (200) to move the first carrier (100) and the second carrier (200) toward each other; and A reset member (400) is disposed between the first carrier (100) and the second carrier (200), the reset member (400) being configured to reset the first carrier (100) and / or the second carrier (200) after being driven to move in opposite directions.

2. The demolding device (10) according to claim 1, characterized in that, The demolding device (10) further includes at least one slide (500), at least one of the first support member (100) and the second support member (200) is provided with a through hole (130) through which the slide (500) passes, so that the first support member (100) and the second support member (200) are adapted to move toward or away from each other along the slide (500).

3. The demolding device (10) according to claim 2, characterized in that, One of the first support member (100) and the second support member (200) is fixedly connected to the slide column (500), and the other of the first support member (100) and the second support member (200) is slidable along the slide column (500).

4. The demolding device (10) according to claim 2, characterized in that, The reset member (400) includes a spring (410), which is sleeved on the slide (500) and in a compressed state abuts against the first support member (100) and the second support member (200).

5. The demolding device (10) according to any one of claims 2 to 4, characterized in that, The drive mechanism (300) includes a lifting mechanism that abuts against a third surface (102) of one of the first carrier (100) and the second carrier (200) opposite to the other, so as to drive the first carrier (100) and the second carrier (200) to move toward each other.

6. The demolding device (10) according to claim 5, characterized in that, The number of sliding columns (500) is multiple, and the multiple sliding columns (500) extend in a vertical direction. The first support member (100) and the second support member (200) are configured as parallel plate structures. The first support member (100) is fixedly connected to the multiple sliding columns (500), and the second support member (200) is slidable along the multiple sliding columns (500). And / or, the lifting mechanism is a hydraulic jack.

7. The demolding device (10) according to claim 5, characterized in that, The third surface (102) is provided with a first recess (110) for abutting and positioning the lifting mechanism.

8. The demolding device (10) according to claim 5, characterized in that, The demolding device (10) further includes a plate (600) which is opposite to the third surface (102) and is adapted to place the drive mechanism (300).

9. The demolding device (10) according to claim 5, characterized in that, The positioning part (120) is disposed on the surface opposite to the third surface (102) and includes a second recess for placing and positioning the mold (20).

10. The demolding device (10) according to claim 9, characterized in that, The depth of the second recess is set to 1 to 3 mm.

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