Forming die of hollow collecting tube placing rack

Abstract

The utility model discloses a forming die of a hollow collecting tube placing frame, which comprises a panel, a plate A, a plate B and a bottom plate, a plurality of first runners are arranged on the plate B, a plurality of second runners are arranged on the plate A, a guide plate is arranged between a fixed die core and the panel, and a core needle and a main runner are arranged on the guide plate. According to the utility model, the plurality of first runners and second runners are arranged, so that glue can be fed from the plurality of runners at the same time, and the cavity can be filled with glue to the greatest extent; the second runner is arranged to be of an ox horn structure to form an inclined upward diving opening structure, so that the pressure of a glue solution entering a cavity can be relieved, damage and deformation of the outer wall or a cross-linked structure, close to the runner, of a product are avoided or reduced, and the appearance quality and the mechanical strength of the internal cross-linked structure of the product are ensured; the first guide assemblies and the second guide assemblies which are opposite in insertion direction are arranged between the plate A and the plate B which are matched with each other, so that the plate A and the plate B can be guided, all parts of the plate A and the plate B can be ensured to be completely and tightly attached together during complete mold closing, and the forming precision of a product is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of plastics, in particular to a molding die for a hollow collection tube placement rack. Background Art

[0002] Collection tubes are widely used in the research and development and application of biomedicine and other fields. In order to facilitate collection and management, they are generally placed on a storage rack. At present, the storage racks for collection tubes are generally divided into two types: solid structure and simple bracket. The solid bracket structure is stable and not easy to deform, but consumes more raw materials and is costly. The simple bracket is light in weight, low in cost and easy to freely assemble, but the part that supports the collection tube inside is easy to deform.

[0003] Therefore, some designers have improved the structure of the placement rack and set it to a hollow structure that is cross-linked with each other, which combines the advantages of the above-mentioned two commonly used placement racks. However, the yield rate in production is not high. The main reason is that the lower part of the placement rack is a hollow structure. Although the lower ends of the hole walls are cross-linked with each other, the cross-linked structure is relatively small and complicated. During the molding process, the glue is often difficult to completely fill the cavity, resulting in insufficient strength of the cross-linked part and a relatively weak supporting connection structure between the hole walls. Utility Model Content

[0004] In view of the problems existing in the above-mentioned prior art, the utility model provides a method of simultaneously feeding glue from multiple flow channels to ensure that the glue can fill the mold cavity to the greatest extent, and set the second flow channel as a bull horn structure to avoid or reduce damage and deformation of the outer wall or cross-linked structure close to the flow channel on the product, thereby ensuring its appearance quality and the mechanical strength of the internal cross-linked structure.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is as follows:

[0006] A forming die for a hollow collection tube placement rack, comprising a panel, an A plate, a B plate and a bottom plate, wherein:

[0007] A movable mold core is provided on the B plate, and a plurality of forming blocks are arranged horizontally on the movable mold core, and a protruding first forming portion is provided at the end of each forming block, which is adapted to the hollow structure at the lower end of the placement rack; a group of first flow channels is provided on the movable mold core beside each forming block, and each group of the first flow channels is connected to another group of the first flow channels adjacent to it;

[0008] The A plate is provided with a fixed mold core that can be matched and engaged with the movable mold core, and one end of the fixed mold core is provided with a plurality of second molding parts that are matched one by one with the first molding parts, each of the second molding parts is connected with a group of second flow channels, each group of the second flow channels is connected with another group of the second flow channels adjacent to it, and each group of the second flow channels is provided on the fixed mold core and matches with one of the first flow channels; a guide plate is provided between the fixed mold core and the panel, and a plurality of groups of core needles extending along the mold opening direction are installed on the guide plate, and each group of the core needles is slidably connected with the guide plate and the second molding part; a main flow channel is provided on the guide plate, and the main flow channel passes through the fixed mold core and is connected with each of the second flow channels and the first flow channel.

[0009] As a further elaboration of the above technical solution:

[0010] In the above technical solution, the second forming portion is a groove, and the second flow channel includes a plurality of connecting flow channels and bull horn flow channels arranged in parallel. An opening end of each bull horn flow channel is arranged on a side wall of the groove, and the other opening end is arranged at the end of the fixed mold core. The connecting flow channel is arranged between the two parallel bull horn flow channels, and one of the connecting flow channels is connected to the main flow channel.

[0011] In the above technical solution, the movable mold core is provided with a plurality of ejector holes extending along the mold opening direction, and each of the ejector holes is connected with the first flow channel; each of the ejector holes is provided with a ejector, and each of the ejector holes is transmission-connected with the ejector plate provided on the bottom plate and can slide in the ejector hole under the push of the ejector plate.

[0012] In the above technical solution, one or more matching first guide components are provided on each side wall of the A plate and the B plate, each of the first guide components includes a first female seat and a first male head, and each pair of matching first female seat and first male head are respectively arranged on the A plate and the B plate.

[0013] In the above technical solution, second guide assemblies are symmetrically provided on both sides of more than one first guide assembly, and each of the second guide assemblies includes a second female seat and a second male head, and the insertion direction of the two second male heads is opposite to the insertion direction of the first male head.

[0014] Compared with the prior art, the beneficial effects of the utility model are: by setting a plurality of matching first flow channels and second flow channels, it is possible to simultaneously feed glue from a plurality of flow channels, thereby ensuring to the greatest extent that the glue can fill the cavity enclosed by the first molding part and the second molding part; by setting the second flow channel as a bull horn structure to form an upwardly inclined diving port structure, the pressure of the glue entering the cavity can be reduced, thereby avoiding or reducing damage and deformation of the outer wall or cross-linked structure of the product close to the flow channel, thereby ensuring its appearance quality and the mechanical strength of the internal cross-linked structure; by setting a plurality of first guide components and second guide components with opposite insertion directions between the matching A plate and B plate, the A plate and the B plate can be guided and ensured that their parts are completely and tightly fitted together when the mold is fully closed, thereby ensuring the molding accuracy of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of this embodiment;

[0016] Figure 2 Schematic diagram of the exploded structure of the A plate, the B plate and their internal components in this embodiment;

[0017] Figure 3 Schematic diagram of the structure of the forming block in this embodiment;

[0018] Figure 4 Schematic diagram of the structure of the movable mold core in this embodiment;

[0019] Figure 5 It is a structural schematic diagram of the fixed mold core in this embodiment;

[0020] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure of part A in the middle.

[0021] In the figure: 10, panel; 20, A plate; 30, B plate; 40, bottom plate; 50, movable mold core; 51, first flow channel; 52, ejector pin hole; 60, molding block; 61, first molding part; 70, fixed mold core; 71, second molding part; 72, second flow channel; 80, guide plate; 81, main flow channel; 90, core needle; 100, ejector pin; 110, ejector pin plate; 120, product; 130, sprue; 1, connecting flow channel; 2, bull horn flow channel; 3, first guide assembly; 301, first female seat; 302, first male head; 4, second guide assembly; 401, second female seat; 402, second male head. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and cannot be understood as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "several" and "multiple" mean two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features being in direct contact, or it can include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0024] like Figure 1 As shown, a forming mold of a hollow collection tube placement rack includes a panel 10, an A plate 20, a B plate 30 and a bottom plate 40, wherein:

[0025] like Figure 2-3As shown, a movable mold core 50 is provided on the B plate 30, and a plurality of forming blocks 60 are horizontally arranged on the movable mold core 50. A protruding first forming portion 61 is provided at the end of each forming block 60, which is adapted to the hollow structure at the lower end of the placement frame; a group of first flow channels 51 is provided on the movable mold core 50 beside each forming block 60, and each group of first flow channels 51 is connected to another group of first flow channels 51 adjacent to it;

[0026] like Figure 2 , 4 -6, the A plate 20 is provided with a fixed mold core 70 that can be matched and snapped with the movable mold core 50, and one end of the fixed mold core 70 is provided with a plurality of second molding parts 71 that are matched one by one with the first molding part 61, each second molding part 71 is connected with a group of second flow channels 72, each group of second flow channels 72 is connected with another group of second flow channels 72 adjacent to it, and each group of second flow channels 72 is provided in the fixed mold core 70 and matches with a first flow channel 51; a guide plate 80 is provided between the fixed mold core 70 and the panel 10, and a plurality of groups of core needles 90 extending along the mold opening direction are installed on the guide plate 80, and each group of core needles 90 is slidably connected with the guide plate 80 and the second molding part 71; a main flow channel 81 is provided on the guide plate 80, and the main flow channel 81 passes through the fixed mold core 70 and is connected with each second flow channel 72 and the first flow channel 51.

[0027] A number of limit rods are arranged between the panel 10 and the A plate 20 of the mold to hold the A plate when the mold is opened so that it moves synchronously with the B plate 30 by a certain distance at the initial stage of the mold opening, and then separates from the B plate 30 after being pulled away by a certain distance from the panel 10. The limit structure therebetween is common knowledge to those skilled in the art and will not be elaborated here.

[0028] The utility model can realize simultaneous glue feeding from multiple flow channels by providing a plurality of matching first flow channels 51 and second flow channels 72, thereby ensuring that the glue can fill the cavity surrounded by the first molding part 61 and the second molding part 71 to the greatest extent.

[0029] Further, such as Figure 5-6 As shown, the second forming portion 71 is a groove, and the second flow channel 72 includes a plurality of connecting flow channels 1 and parallel bull horn flow channels 2. An opening end of each bull horn flow channel 2 is arranged on a side wall of the groove, and the other opening end is arranged at the end of the fixed mold core 70. Connecting flow channels are arranged between the parallel bull horn flow channels 2, and a connecting flow channel 1 is connected to the main flow channel 81.

[0030] It can be understood that the bull horn flow channel 2 can form an upwardly inclined diving port structure on the fixed mold core 70, which conforms to the structural characteristics of the hollow lower end of the product, and can reduce the pressure of the glue entering the cavity, avoid or reduce the damage and deformation of the outer wall or cross-linked structure close to the flow channel on the product, and ensure its appearance quality and the mechanical strength of the internal cross-linked structure.

[0031] This embodiment is a mold with two cavities in one mold. Two first runners 51 and two second runners 72 form a structure similar to the Chinese character "王" (king). A number of connecting runners 1 are arranged on the central axis, and a number of horn runners 2 are symmetrically arranged on both sides thereof. The main runner 81 is at the exact center of a number of connecting runners to ensure that the glue liquid flows into the cavity evenly.

[0032] Further, as Figure 4 shown, a number of ejector pin holes 52 extending along the mold opening direction are provided on the moving mold core 50, and each ejector pin hole 52 communicates with the first runner 51; an ejector pin 100 is provided in each ejector pin hole 52, and each ejector pin 100 is in driving connection with an ejector pin plate 110 provided on the bottom plate 40 and can slide in the ejector pin hole 52 under its push.

[0033] During mold opening, the B plate 30 pulls the A plate 20 away from the face plate 10, and the end of the sprue disengages. After a certain distance, the face plate 10 pulls the A plate 20 to separate it from the B plate 30. The second molding part 71 leaves the first molding part 61, and the product 120 remains on the molding block 60. The ejector pin plate 110 pushes the ejector pin 100 to slide in the ejector pin hole 52 to push the sprue 130 of the product 120 away from the molding block.

[0034] Generally, a number of ejector pins are also provided under the product 120 on the ejector pin plate 110 of the plastic mold to push the product 120 away from the moving mold after complete mold opening. This structure is a conventional structure of the plastic mold and belongs to the common knowledge of those skilled in the art, so it will not be elaborated here.

[0035] Further, as Figure 1 shown, more than one pair of matching first guiding components 3 are provided on each side wall of the A plate 20 and the B plate 30. Each first guiding component 3 includes a first female seat 301 and a first male head 302, and each pair of matching first female seat 301 and first male head 302 are respectively provided on the A plate 20 and the B plate 30.

[0036] Further, second guiding components 4 are symmetrically provided on both sides of more than one first guiding component 3. Each second guiding component 4 includes a second female seat 401 and a second male head 402, and the insertion directions of the two second male heads 402 are opposite to the insertion direction of the first male head 302.

[0037] It can be understood that a number of parallel hole columns are densely arranged in the hollow part of the product formed by the present utility model. To ensure its precision, the mold must have a high mold closing precision. By providing a plurality of first guiding components 3 and second guiding components 4 with opposite insertion directions between the mating A plate 20 and B plate 30, the A plate 20 and the B plate 30 can be aligned and ensured to be completely and tightly fitted together when completely closed, ensuring the molding precision of the product.

[0038] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A forming mold for a hollow collection tube placement rack, characterized in that: It includes the panel, A plate, B plate and bottom plate, of which: A movable mold core is provided on the B plate, and a plurality of forming blocks are arranged horizontally on the movable mold core, and a protruding first forming portion is provided at the end of each forming block, which is adapted to the hollow structure at the lower end of the placement rack; a group of first flow channels is provided on the movable mold core beside each forming block, and each group of the first flow channels is connected to another group of the first flow channels adjacent to it; The A plate is provided with a fixed mold core that can be matched and engaged with the movable mold core, and one end of the fixed mold core is provided with a plurality of second molding parts that are matched one by one with the first molding parts, each of the second molding parts is connected with a group of second flow channels, each group of the second flow channels is connected with another group of the second flow channels adjacent to it, and each group of the second flow channels is provided on the fixed mold core and matches with one of the first flow channels; a guide plate is provided between the fixed mold core and the panel, and a plurality of groups of core needles extending along the mold opening direction are installed on the guide plate, and each group of the core needles is slidably connected with the guide plate and the second molding part; a main flow channel is provided on the guide plate, and the main flow channel passes through the fixed mold core and is connected with each of the second flow channels and the first flow channel.

2. The forming mold of the hollow collection tube placement rack according to claim 1, characterized in that: The second forming portion is a groove, and the second flow channel includes a plurality of connecting flow channels and bull horn flow channels arranged in parallel. An opening end of each bull horn flow channel is arranged on a side wall of the groove, and the other opening end is arranged at the end of the fixed mold core. The connecting flow channel is arranged between two adjacent bull horn flow channels, and one of the connecting flow channels is connected to the main flow channel.

3. The forming mold of the hollow collection tube placement rack according to claim 2, characterized in that: The movable mold core is provided with a plurality of ejector holes extending along the mold opening direction, and each of the ejector holes is connected with the first flow channel; each of the ejector holes is provided with a ejector, and each of the ejector holes is transmission-connected with an ejector plate provided on the bottom plate and can slide in the ejector hole under the push of the ejector plate.

4. A forming mold for a hollow collection tube placement rack according to any one of claims 1 to 3, characterized in that: One or more matching first guide components are provided on each side wall of the A plate and the B plate, each of the first guide components includes a first female seat and a first male head, and each pair of matching first female seat and first male head is respectively provided on the A plate and the B plate.

5. The forming die of the hollow collection tube placement rack according to claim 4, characterized in that: Second guide assemblies are symmetrically arranged on both sides of more than one of the first guide assemblies, and each of the second guide assemblies includes a second female seat and a second male head, and the insertion direction of the two second male heads is opposite to the insertion direction of the first male head.

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