Injection mold and injection molding machine

Abstract

An injection mold comprises a front mold body, a rear mold body and a sliding block mechanism, when the sliding block mechanism is located at a first position, the front mold body and the rear mold body form a first closed space, and when the sliding block mechanism is located at a second position, the front mold body, the sliding block mechanism and the rear mold body form a second closed space; and the first closed space and the second closed space are used for accommodating a filter paperboard. According to the injection mold and the injection molding machine disclosed by the utility model, the glue thicknesses of different products can be adjusted by adopting one set of mold, so that not only can the combination and matching of filter paperboards with different thicknesses be realized, but also the finished product injection molding of single-layer or double-layer filter paperboards can be realized. The injection mold and the injection molding machine are low in cost, flexible to use, convenient to operate and high in production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of biological pharmaceutical process technology, specifically relates to a injection mold and injection molding machine. BACKGROUND

[0002] Filters are widely used in biological pharmaceutical process technology, and can be divided into deep filters, surface filters, membrane filters and the like according to different application scenarios. Deep filters have a huge dirt load capacity and are usually used to process pre-filtered solutions.

[0003] The deep filter paperboard comprises an upper cover plate, a lower cover plate and a filter unit, the filter unit is welded with the upper cover plate and the lower cover plate as a whole, and the upper cover plate comprises an upper cover liquid inlet, an upper cover exhaust port and an upper cover liquid outlet communicated with the filter unit. The filter unit is composed of a frame and a deep filter paperboard combined with the frame. Specifically, in the manufacturing process of the filter unit, the mold is placed in the injection molding machine, and then the deep filter paperboard is placed in the mold to perform injection molding on the deep filter paperboard to form a sealed frame. The thickness of the existing deep filter paperboard is basically between 2.90mm and 5.0mm, and the mold design has a fixed value of the mold sealing distance, so only a fixed product glue thickness can be supported. Specifically, the thickness difference of different filter paperboards is about 2.0mm. In order to save costs, the existing technology generally designs the mold sealing distance as the minimum value of the thickness of the paperboard, which will cause the following problems in the injection molding process:

[0004] (1) The thin filter paperboard or the paperboard with high diatomite content will produce different degrees of overflow during the injection molding process, and the product will have a local glue shortage;

[0005] (2) The thick filter paperboard will cause edge cracking.

[0006] In order to meet the development requirements of different types of filter paperboards, multiple sets of molds with different glue thicknesses need to be developed. Although this can meet the production needs of various types of filter paperboards, the following problems still exist:

[0007] (1) Multiple molds need to be switched, and the molds, the mold temperature machine, the hot runner temperature control box and other related accessories need to be replaced, reconnected and operated, which is complicated;

[0008] (2) After replacing the mold, the mold needs to be reheated, and the waiting time can be as long as 2-3 hours, which is a long production process, low efficiency and high labor cost;

[0009] (3) Frequent switching of molds and accessories will also cause problems such as poor product stability and defective products. SUMMARY

[0010] In order to overcome the prior art defects, one object of the utility model is to provide a injection mold, another object of the utility model is to provide a injection molding machine. In order to realize the above-mentioned purpose, the utility model adopts the technical scheme as follows:

[0011] One aspect of the utility model provides a injection mold, including front mould, back mould and slider mechanism, when the slider mechanism is located first position, the front mould and back mould form first closed space for accommodating filter paper board, when the slider mechanism is located second position, with the front mould, the back mould forms second closed space for accommodating filter paper board, the height of second closed space is greater than the height of first closed space.

[0012] Optionally, the slider mechanism includes a control assembly for controlling the slider mechanism to move to the first position or the second position.

[0013] Optionally, the slider mechanism includes symmetrically arranged first slider and second slider, when the first slider and second slider are located at the first position, the front mold and the back mold form the first closed space, when the first slider and second slider are located at the second position, the front mold and the back mold form the second closed space.

[0014] Optionally, the injection mold further includes a limiting piece for fixing the first slider and the second slider to the first position.

[0015] Optionally, the front mold includes a front mold core, and the back mold includes a back mold core, the first position is located at the outer edge of the front mold core and the back mold core, when the first slider and the second slider are located at the first position, the front mold core and the back mold core are fitted to form the first closed space, and the second position is located between the front mold core and the back mold core, when the first slider and the second slider are located at the second position, the front mold core and the back mold core form the second closed space.

[0016] Optionally, the front mold core includes a boss, and the height of the boss is greater than or equal to the thickness of the first slider and the second slider.

[0017] Optionally, the injection mold further includes an ejection mechanism, when the filter paper board completes injection in the first closed space or the second closed space, the ejection mechanism ejects the filter paper board from the first closed space or the second closed space.

[0018] Optionally, the limiting piece is a wave bead screw.

[0019] Optionally, the control assembly is an oil cylinder.

[0020] The utility model discloses an injection molding machine, including the injection mold as aforementioned, the filter paperboard is contained in injection mold.

[0021] The injection mold of the utility model, through control assembly control slider mechanism removes, adjust the height of the space of injection mold for containing filter paperboard, to adapt the injection molding demand of filter paperboard of different thickness. The injection mold, injection molding machine of the utility model, adopt a set of mould to adjust different product glue thickness, can realize the combination collocation of filter paperboard of different thickness, also can realize the finished product injection molding of single -layer or double -layer filter paperboard. The injection mold, injection molding machine of the utility model, low cost, use nimble, convenient operation, high production efficiency, have higher practical value. BRIEF DESCRIPTION OF DRAWINGS

[0022] The reader will understand various aspects of the utility model more clearly after reading the specific embodiment of the utility model with reference to the drawings. Among them,

[0023] Figure 1 It is injection mold structure diagram for an embodiment of the utility model;

[0024] Figure 2 It is front mould structure diagram for an embodiment of the utility model;

[0025] Figure 3 It is back mould and slider mechanism structure diagram-1 for an embodiment of the utility model;

[0026] Figure 4 It is cross section view-1 of injection mold for an embodiment of the utility model;

[0027] Figure 5 It is back mould and slider mechanism structure diagram-2 for another embodiment of the utility model;

[0028] Figure 6 It is cross section view-2 of injection mold for another embodiment of the utility model;

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 1: front mould;2: back mould;3: slider mechanism;4: limit piece;5: ejection mechanism;6: filter paperboard;

[0031] 11: front mould core;

[0032] 21: back mould core;22: back mould pressing strip;23: back mould baffle;

[0033] 31: control assembly;32: first slider;33: second slider;

[0034] 111: boss. DETAILED DESCRIPTION

[0035] In order to make the technical content disclosed in the present application more detailed and complete, reference can be made to the accompanying drawings and the following specific embodiments of the present application. However, it should be understood by those skilled in the art that the embodiments provided below are not intended to limit the scope encompassed by the present application. In addition, the accompanying drawings are only used for illustrative purposes and are not drawn to scale.

[0036] In the specification, "connection" includes both direct connection and indirect connection. In the specification, "several", "a plurality of" means two or more. In the specification and claims and the above drawings, the terms "first", "second", "third" and the like (if any) are used only for the purpose of distinguishing similar objects, and do not necessarily imply a specific order or sequence.

[0037] It should be understood that the data thus used can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0038] The technical solutions of the present application will be described in detail below. The following embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0039] Embodiment one:

[0040] The present embodiment provides an injection mold for accommodating filter paper board 6 so as to injection mold the filter paper board 6. Please refer to Figures 1-6 , the injection mold includes front mold 1, back mold 2, slider mechanism 3, limiting piece 4, ejection mechanism 5. The front mold 1 includes front mold core 11, the front mold core 11 includes boss 111; the back mold 2 includes back mold core 21, back mold strip 22 and back mold baffle 23; the slider mechanism 3 includes control assembly 31, first slider 32 and second slider 33, specifically, the height of the boss 111 is greater than or equal to the thickness of the first slider 32 and the second slider 33.

[0041] In the present embodiment, the front mold 1 is arranged opposite to the rear mold 2, and the slider mechanism 3 can be located in a first position or a second position. When the slider mechanism 3 is located in the first position, the front mold 1 and the rear mold 2 form a first closed space for accommodating the filter paper board 6. When the slider mechanism 3 is located in the second position, the front mold 1 and the rear mold 2 form a second closed space for accommodating the filter paper board 6. Specifically, the first position is located at the outer edge of the front mold cavity 11 and the rear mold cavity 21. Specifically, when the slider mechanism 3 is located in the first position, the first slider 32 is located at one side of the outer edge of the front mold cavity 11 and the rear mold cavity 21, and the second slider 33 is located at the other side of the outer edge of the front mold cavity 11 and the rear mold cavity 21. The second position is located between the front mold cavity 11 and the rear mold cavity 21.

[0042] In the embodiment, the control assembly 31 is used to control the slider mechanism 3 to move to the first position or the second position, when the slider mechanism 3 is located at the first position, the injection mold is in the first state, when the slider mechanism 3 is located at the second position, the injection mold is in the second state. Specifically, the control assembly 31 is an oil cylinder, the slider mechanism 3 is respectively provided with a first oil cylinder and a second oil cylinder on both sides of the injection mold, which are respectively used to control the first slider 32 and the second slider 33. Specifically, when the slider mechanism 3 is located at the first position, the front mold core 11 and the rear mold core 21 are attached to form the first closed space, specifically, when the slider mechanism 3 is located at the first position, the first slider 32 and the second slider 33 are respectively located on both sides of the outer edges of the front mold core 11 and the rear mold core 21, because the front mold core 11 is provided with the boss 111, specifically, the boss 111 is an annular protrusion, at this time, the boss 111 and the rear mold core 21 form the first closed space, specifically, because the height of the boss 111 is higher than the thickness of the first slider 32 and the second slider 33, the first slider 32 and the second slider 33 will not contact the front mold core 11 when in the first position, on the one hand, the distance of the slider mechanism 3 moving between the first position and the second position is shortened, on the other hand, it prevents the slider mechanism 3 from colliding with the front mold core 11 due to misoperation. When the slider mechanism 3 is located at the second position, the front mold core 11, the first slider 32, the second slider 33 and the rear mold core 21 form the second closed space, specifically, the first slider 32 and the second slider 33 are located above the rear mold core 21, therefore, the thickness of the first slider 32 and the second slider 33, that is, the increased height of the second closed space compared with the first closed space, the thickness of the first slider 32 and the second slider 33 can be set according to the commonly used thickness of the filter paper board in the actual application scenario.

[0043] In the embodiment, the limiting piece 4 is used to fix the slider mechanism 3 at the first position. Specifically, the limiting piece 4 is a wave bead screw, the wave bead screw includes an extendable protrusion, the bottom of the first slider 32 and the second slider 33 is provided with a groove matched with the size of the protrusion, when the control assembly 31 controls the slider mechanism 3 to move to the first position, the bottom of the first slider 32 and the second slider 33 applies pressure to the wave bead screw, prompting the wave bead screw to enter the groove under the action of the elastic force, and form a clamping with the groove, thereby fixing the first slider 32 and the second slider 33 at the first position.

[0044] In the embodiment, when the filter paper board 6 is completed injection molding, the ejection mechanism 5 ejects the filter paper board 6 from the first closed space or the second closed space, and then the filter paper board 6 can be taken out to perform injection molding of the next batch of filter paper boards.

[0045] In the embodiment, the rear mold strips 22 are arranged on the lateral sides of the slider mechanism 3 respectively, and are used to limit the first slider 32 and the second slider 33 in the lateral direction to ensure that the first slider 32 and the second slider 33 move stably; the rear mold baffles 23 are arranged on the longitudinal sides of the slider mechanism 3 respectively, and are used to limit the first slider 32 and the second slider 33 in the longitudinal direction after the wave bead screw fails.

[0046] Embodiment two:

[0047] The embodiment provides an injection molding machine for injection molding of the filter paper board 6, and the injection molding machine comprises the injection molding mold and the injection molding assembly in the embodiment one. The injection molding mold is used for placing the filter paper board 6, and the injection molding assembly is used for injecting injection molding material into the injection molding mold to realize injection molding of the filter paper board 6. Specifically, the injection molding material enters the injection molding mold to encapsulate the edges of the filter paper board 6.

[0048] In the embodiment, the filter paper board 6 is placed in the injection molding mold, the slider mechanism 3 is controlled to move to the first position or the second position by the control assembly 31 to form the first closed space or the second closed space, the first closed space and the second closed space are used for accommodating the filter paper board 6, and the height of the second closed space is higher than that of the first closed space, so that the first closed space and the second closed space meet the injection molding requirements of filter paper boards 6 with different thicknesses.

[0049] In the embodiment, the injection molding machine can be used for injection molding of single-layer filter paper boards and double-layer filter paper boards.

[0050] Embodiment three:

[0051] The embodiment provides a use process of the injection molding mold in the embodiment one, to further illustrate the technical scheme of the utility model. Please refer to Figures 3-6 , wherein the Figure 3 , 4 are structural diagrams and sectional views of the injection molding mold in state one, and the Figure 5 , 6 are structural diagrams and sectional views of the injection molding mold in state two.

[0052] 1. Injection molding in the first state

[0053] When the injection mold is set to the first state, the thickness of the filter paper board 6 is 2.9mm-3.9mm in this embodiment. The injection step is as follows:

[0054] (1) The front mold 1 is removed;

[0055] (2) The first slider 32 and the second slider 33 are moved to the first position on both sides of the injection mold under the pulling force of the oil cylinder, at this time, the convex points of the wave bead screws on both sides are respectively clamped with the grooves of the first slider 32 and the second slider 33, so as to fix the slider mechanism 3 at the first position;

[0056] (3) The filter paper board 6 is placed in the back mold core 21;

[0057] (4) The front mold 1 is placed on the back mold 2, that is, the front mold 1 and the back mold 2 are clamped, specifically, the breaking surface of the front mold core 11 is pressed on the upper surface of the back mold core 21 to form the first closed space, at this time, the glue sealing surface of the front mold core 11 and the back mold core 21 is pressed on the edge of the filter paper board 6;

[0058] (5) The injection mold is injected with glue, and the filter paper board 6 is encapsulated;

[0059] (6) After the injection is completed, the front mold 1 is opened, and the filter paper board 6 after injection is ejected by the ejection mechanism 5.

[0060] 2, injection in the second state

[0061] When the injection mold is set to the first state, the thickness of the filter paper board 6 is 2.9mm-3.9mm in this embodiment. The injection step is as follows:

[0062] (1) the first slider 32, the second slider 33 are moved from the both sides of the injection mold to the rear mold core 21 under the pushing of the oil cylinder, at this time, the convex points are extruded and retracted under the pressing of the force of the lower surface of the first slider 32 and the second slider 33, thereby releasing the convex points from the grooves, in particular, the convex point bottom is provided with a spring, and a ball body is exposed on the surface, the grooves of the first slider 32 and the second slider 33 are provided with arc corners, the arc corners have a guiding effect, when the oil cylinder pushes the first slider 32 and the second slider 33, under the horizontal force, the convex points will naturally slide down, thereby releasing the convex points from the grooves, at this time, the first slider 32 and the second slider 33 are stably moved to the rear mold core 21 to the second position, at this time, the first slider 32 and the second slider 33 form a tight state with the rear mold core 21 Figure 6

[0063] (2) the filter paper board 6 is placed in the rear mold core 21;

[0064] (3) when the mold is closed, the front mold core 11 is pressed on the upper surface of the first slider 32 and the second slider 33 to form the second closed space, at this time, the height of the second closed space is increased by 1.0mm-3.0mm based on the first closed space, and the increased height can be set according to actual needs;

[0065] (4) the injection molding is performed on the injection mold, and the filter paper board 6 is encapsulated;

[0066] (5) after the injection molding is completed, the front mold 1 is opened, and the filter paper board 6 is ejected by the ejection mechanism 5.

[0067] The injection mold of the utility model, through the control assembly control slider mechanism moves, adjustment injection mold is used to accommodate the height of filter paper board space, to adapt to the injection molding demand of different thickness filter paper board. The injection mold and the injection molding machine of the utility model can adjust different product glue thickness with a set of mold, can realize the combination and collocation of filter paper boards with different thickness, and can also realize the finished product injection molding of single-layer or double-layer filter paper boards. The injection mold and the injection molding machine of the utility model are low in cost, flexible to use, convenient to operate, high in production efficiency, and have high practical value.

[0068] ​Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application, and for those skilled in the art, on the basis of the above description, other different forms of changes or variations can be made, the enumerated embodiments of the present application cannot be exhausted for all the implementation modes, and any obvious changes or variations derived from the technical solutions of the present application still belong to the protection scope of the present application. All the documents mentioned in the present application are cited as references in the present application, just like a document is cited as a reference alone.

Claims

1. An injection mold characterized in that, The injection mold comprises a front mold, a rear mold and a slider mechanism, when the slider mechanism is in a first position, the front mold and the rear mold form a first closed space for accommodating filter paper board, when the slider mechanism is in a second position, the front mold and the rear mold form a second closed space for accommodating filter paper board, the height of the second closed space is greater than the height of the first closed space.

2. The injection mold of claim 1, wherein The slider mechanism comprises a control assembly for controlling the slider mechanism to move to the first position or the second position.

3. The injection mold of claim 2, wherein, The slider mechanism comprises a first slider and a second slider symmetrically arranged, when the first slider and the second slider are in the first position, the front mold and the rear mold form the first closed space, when the first slider and the second slider are in the second position, the front mold and the rear mold form the second closed space.

4. The injection mold of claim 3, wherein The injection mold further comprises a limiting piece for fixing the first slider and the second slider in the first position.

5. The injection mold of claim 4, wherein, The front mold comprises a front mold core, the rear mold comprises a rear mold core, the first position is located at the outer edge of the front mold core and the rear mold core, when the first slider and the second slider are in the first position, the front mold core and the rear mold core are fitted to form the first closed space; the second position is located between the front mold core and the rear mold core, when the first slider and the second slider are in the second position, the front mold core and the rear mold core form the second closed space.

6. The injection mold of claim 5, wherein, The front mold core comprises a boss, the height of the boss is greater than or equal to the thickness of the first slider and the second slider.

7. The injection mold of claim 1, wherein, The injection mold further comprises an ejection mechanism, when the filter paper board completes injection in the first closed space or the second closed space, the ejection mechanism ejects the filter paper board out of the first closed space or the second closed space.

8. The injection mold of claim 4, wherein, The limiting piece is a wave bead screw.

9. The injection mold of claim 2, wherein, The control assembly is an oil cylinder.

10. An injection molding machine characterized by, The injection mold comprises a front mold, a rear mold and a slider mechanism, when the slider mechanism is in a first position, the front mold and the rear mold form a first closed space for accommodating filter paper board, when the slider mechanism is in a second position, the front mold and the rear mold form a second closed space for accommodating filter paper board, the height of the second closed space is greater than the height of the first closed space. The slider mechanism comprises a control assembly for controlling the slider mechanism to move to the first position or the second position. The slider mechanism comprises a first slider and a second slider symmetrically arranged, when the first slider and the second slider are in the first position, the front mold and the rear mold form the first closed space, when the first slider and the second slider are in the second position, the front mold and the rear mold form the second closed space. The injection mold further comprises a limiting piece for fixing the first slider and the second slider in the first position. The injection mold comprises a front mold, a rear mold and a slider mechanism, when the slider mechanism is in a first position, the front mold and the rear mold form a first closed space for accommodating filter paper board, when the slider mechanism is in a second position, the front mold and the rear mold form a second closed space for accommodating filter paper board, the height of the second closed space is greater than the height of the first closed space. The front mold comprises a front mold core, the rear mold comprises a rear mold core, the first position is located at the outer edge of the front mold core and the rear mold core, when the first slider and the second slider are in the first position, the front mold core and the rear mold core are fitted to form the first closed space; the second position is located between the front mold core and the rear mold core, when the first slider and the second slider are in the second position, the front mold core and the rear mold core form the second closed space. The front mold core comprises a boss, the height of the boss is greater than or equal to the thickness of the first slider and the second slider. The injection mold further comprises an ejection mechanism, when the filter paper board completes injection in the first closed space or the second closed space, the ejection mechanism ejects the filter paper board out of the first closed space or the second closed space. The limiting piece is a wave bead screw. The control assembly is an oil cylinder. The injection mold comprises a front mold, a rear mold and a slider mechanism, when the slider mechanism is in a first position, the front mold and the rear mold form a first closed space for accommodating filter paper board, when the slider mechanism is in a second position, the front mold and the rear mold form a second closed space for accommodating filter paper board, the height of the second closed space is greater than the height of the first closed space.

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