A molding die for cleaning a machine joint

Abstract

The utility model relates to a kind of forming mould of cleaning machine joint, including respectively front and rear arrangement and mutually cooperate dynamic forming module and fixed forming module, panel is fixed in the front side of dynamic forming module, bottom plate is arranged in the rear side of fixed forming module, and ejection assembly is arranged between bottom plate and fixed forming module;Two respectively left and right distribution's mould cores are further provided between dynamic forming module and fixed forming module, and mould core includes two respectively embedded in the rear side of dynamic forming module and the front side of fixed forming module and mutually cooperate core block;Dynamic forming module and fixed forming module between still be equipped with with two mould cores mutually cooperate's longitudinal core-pulling mechanism, longitudinal core-pulling mechanism further includes two respectively left and right setting cavity hole forming unit;The utility model has simplified processing step to improve production efficiency, eliminate the distribution error of cavity hole to improve machining accuracy simultaneously, in addition, joint is also avoided to occur damage when processing to reduce scrap rate.

Description

Technical Field

[0001] This utility model relates to a molding die for a cleaning machine connector. Background Technology

[0002] Cleaning machine connectors are specialized accessories used to connect cleaning machines to external equipment such as water pipes and air pipes. Their main function is to ensure the stability and sealing of high-pressure water or gas transmission. Cleaning machine connectors on the market are mainly made of metal or plastic. Because plastic cleaning machine connectors are easier to process and reduce costs, they have a higher market share. Like other plastic parts, the production of plastic cleaning machine connectors depends on matching injection molding molds and corresponding injection molding machines.

[0003] To ensure uniform water flow, multiple cavities for diverting water are evenly distributed on the outer circumference of the cleaning machine connector. Due to the large number and dense distribution of these cavities, conventional injection molds cannot form them all at once. Instead, the process is divided into two steps: first, the injection mold can only form the two end interfaces and internal channels; then, after demolding, a separate drilling process is arranged to complete the processing of the cavities. Therefore, the processing steps are cumbersome, resulting in low production efficiency. In addition, there are errors in the distribution of the cavities, so the processing accuracy is not high. Furthermore, the connector is easily damaged during processing, resulting in a high scrap rate. Further improvements are needed. Utility Model Content

[0004] In view of the current state of the prior art, the technical problem to be solved by this utility model is to provide a molding die for a cleaning machine connector that simplifies the processing steps to improve production efficiency, improves processing accuracy, and reduces the scrap rate.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a molding die for a cleaning machine connector, comprising a movable molding module and a fixed molding module respectively arranged front and rear and cooperating with each other, a panel fixed on the front side of the movable molding module, a base plate disposed on the rear side of the fixed molding module, and an ejection assembly disposed between the base plate and the fixed molding module, characterized in that: The moving forming module and the fixed forming module are further provided with two mold cores distributed on the left and right respectively. The mold cores include two core blocks that are respectively embedded on the rear side of the moving forming module and the front side of the fixed forming module and cooperate with each other. The moving forming module and the fixed forming module are further provided with a longitudinal core-pulling mechanism that cooperates with both mold cores. The longitudinal core-pulling mechanism includes a slider that is movably connected to the front of the fixed forming module to have the function of vertical movement and is located above the two mold cores, a seat block fixed to the lower side of the slider, two first core pillars that are vertically fixed on the seat block, and two second core pillars that are vertically and movably inserted into the lower side of the fixed forming module. The ends of the two first core pillars are vertically downward and respectively set towards the two mold cores, and the ends of the two second core pillars are vertically upward and respectively set towards the two mold cores. The longitudinal core-pulling mechanism also includes two cavity forming units arranged on the left and right sides respectively. Each cavity forming unit includes two cavity forming modules. The two cavity forming modules in the cavity forming unit on the left side are symmetrically arranged on the left and right sides of a mold core on the left side, and the two cavity forming modules in the cavity forming unit on the right side are symmetrically arranged on the left and right sides of a mold core on the right side. The cavity forming module includes a side slider movably connected to the front of the fixed forming module to have left and right translation function, a guide rod obliquely inserted in the side slider, a guide block fixed on the guide rod facing the outer wall of the mold core, and a core rod assembly disposed inside the guide block. The front end of the guide rod is fixed on the moving forming module.

[0006] Preferably, each of the two core blocks in each mold core has a vertically distributed semi-circular groove on its opposite outer wall. Each core block also has a guide notch groove on the left and right edges of the outer wall on the side where the semi-circular groove is located, which communicates with the inner wall of the semi-circular groove. The two guide notches groove divide the semi-circular groove into a first semi-circular forming groove and a second semi-circular forming groove that are distributed vertically.

[0007] Preferably, the ends of the two first core pillars are respectively concentrically positioned above the semi-circular groove on one of the core blocks located on the fixed forming module of the two mold cores, and the ends of the two second core pillars are respectively concentrically positioned below the semi-circular groove on one of the core blocks located on the fixed forming module of the two mold cores.

[0008] Preferably, the mandrel assembly includes a plurality of mandrels laterally inserted into the guide block on one side of the outer wall facing the mandrel. Each mandrel has an arc surface formed on one end facing the mandrel, and a semi-circular concave surface is formed on the guide block on one side of the outer wall facing the mandrel. Each arc surface is concentric with the semi-circular concave surface.

[0009] Preferably, the guide block in each cavity forming module is movably disposed in a guide notch groove on the same side of a corresponding core block.

[0010] Preferably, a symmetrically arranged feed bar is fixed to the rear side of the moving forming module and the front side of the fixed forming module, and each feed bar is located between two core blocks on the moving forming module or the fixed forming module.

[0011] Preferably, each of the two feed bars has a transversely distributed and mutually cooperating feed groove on its opposite outer wall. Correspondingly, each of the two core blocks in each mold core also has a feed notch between the edge of one side facing the feed bar and the inner wall of the adjacent side of the first semi-circular forming groove on its opposite outer wall. Each feed notch is connected to the opening on the opposite side of the corresponding feed groove.

[0012] Compared with the prior art, the advantages of this utility model are as follows: This utility model can form multiple cavities evenly distributed on the outer circumference of the cleaning machine connector in one injection molding process, without having to be divided into two steps, thus eliminating the need to arrange the drilling process separately after demolding, thereby simplifying the processing steps and improving production efficiency. At the same time, it eliminates the distribution error of the cavities to improve processing accuracy. In addition, it also avoids damage to the connector during processing, thereby reducing the scrap rate. Attached Figure Description

[0013] The above and other features, advantages, and aspects of the embodiments of this application will become more apparent when taken in conjunction with the accompanying drawings and the following detailed description; throughout the drawings, the same or similar reference numerals denote the same or similar elements; it should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale; in the drawings: Figure 1 This is an exploded view of the right front side of this utility model; Figure 2 This is a structural diagram of the left rear side of the core block of this utility model; Figure 3 This is an exploded view of the left rear side of the cavity forming module of this utility model. Detailed Implementation

[0014] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0015] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0016] like Figures 1-3 As shown, a molding die for a cleaning machine connector includes a movable molding module 1 and a fixed molding module 2 that are respectively arranged in front of and behind and cooperate with each other, a panel 3 fixed on the front side of the movable molding module 1, a base plate 4 located on the rear side of the fixed molding module 2, and an ejection assembly 5 located between the base plate 4 and the fixed molding module 2. Two mold cores are also provided between the moving forming module 1 and the fixed forming module 2, which are distributed on the left and right respectively. The mold cores include two core blocks 6 that are respectively embedded on the rear side of the moving forming module 1 and the front side of the fixed forming module 2 and cooperate with each other. A longitudinal core-pulling mechanism 7 is also provided between the moving molding module 1 and the fixed molding module 2, which cooperates with both mold cores. The longitudinal core-pulling mechanism 7 includes a slider 77 movably connected to the front side of the fixed molding module 2 to have the function of vertical movement and located above the two mold cores, a seat block 78 fixed to the lower side of the slider 77, two first core pillars 79 vertically fixed on the seat block 78, and two second core pillars 72 vertically and movably inserted into the lower side of the fixed molding module 2. The ends of the two first core pillars 79 are vertically downward and respectively set towards the two mold cores, and the ends of the two second core pillars 72 are vertically upward and respectively set towards the two mold cores. The longitudinal core-pulling mechanism 7 also includes two cavity forming units arranged on the left and right sides respectively. Each cavity forming unit includes two cavity forming modules. The two cavity forming modules in the cavity forming unit on the left side are symmetrically arranged on the left and right sides of a mold core on the left side respectively. The two cavity forming modules in the cavity forming unit on the right side are symmetrically arranged on the left and right sides of a mold core on the right side respectively. The cavity forming module includes a side slider 73 movably connected to the front of the fixed forming module 2 to have left and right translation function, a guide rod 74 obliquely inserted in the side slider 73, a guide block 75 fixed on the guide rod 74 facing the outer wall of the mold core, and a core rod assembly 76 disposed inside the guide block 75. The front end of the guide rod 74 is fixed on the moving forming module 1.

[0017] Each of the two core blocks 6 in the mold core has a vertically distributed semi-circular groove 61 on its opposite outer wall. On the left and right edges of the outer wall of the side where the semi-circular groove 61 is located, there is a guide notch 62 that communicates with the inner wall of the semi-circular groove 61. The two guide notches 62 divide the semi-circular groove 61 into a first semi-circular forming groove 63 and a second semi-circular forming groove 64 that are distributed vertically.

[0018] The ends of the two first core pillars 79 are respectively concentrically located above the semi-circular groove 61 on one of the core blocks 6 on the fixed forming module 2 of the two mold cores, and the ends of the two second core pillars 72 are respectively concentrically located below the semi-circular groove 61 on one of the core blocks 6 on the fixed forming module 2 of the two mold cores.

[0019] The mandrel assembly 76 includes a plurality of mandrels 76 that are laterally inserted into the outer wall of the guide block 75 facing the mandrel 6. Each mandrel 76 has an arc surface 762 formed on one end facing the mandrel 6. A semi-circular concave surface 751 is formed on the outer wall of the guide block 75 facing the mandrel 6. Each arc surface 762 is concentric with the semi-circular concave surface 751.

[0020] In each cavity forming module, the guide block 75 is movably disposed in a guide notch 62 on the same side of the corresponding core block 6.

[0021] The front side of the molding module 2 is also fixed with a horizontally arranged guide beam 9, and the two first core columns 79 are movably inserted in the guide beam 9.

[0022] A symmetrically arranged feed bar 8 is fixed on the rear side of the moving forming module 1 and the front side of the fixed forming module 2. Each feed bar 8 is located between two core blocks 6 on the moving forming module 1 or the fixed forming module 2.

[0023] Each of the two feed bars 8 has a feed groove 81 that is laterally distributed and cooperates with each other on the opposite outer wall. Correspondingly, each of the two core blocks 6 in each mold core has a feed notch 65 between the edge of one side facing the feed bar 8 and the inner wall of the first semi-circular forming groove 63. Each feed notch 65 is connected to the opening on the opposite side of the corresponding feed groove 81.

[0024] The first core post 79 has a first stepped post 791 formed concentrically downward at its end, a second stepped post 792 formed concentrically downward at its end, a third stepped post 793 formed concentrically downward at its end, a fourth stepped post 794 formed concentrically downward at its end, and a core needle 795 formed concentrically downward at its end.

[0025] The end of the second core post 72 has a fifth step post 721 that is concentrically arranged upwards, the end of the fifth step post 721 has a sixth step post 722 that is concentrically arranged upwards, the end of the sixth step post 722 has a protrusion 723 that is concentrically arranged upwards, and two locking blocks 724 that are diagonally arranged outwards are also formed on the outer wall of the fifth step post 721.

[0026] Working principle: The panel 3 and the base plate 4 are respectively installed on the action mechanism and the machine body of the injection molding machine. When the mold is closed, the action mechanism is operated to drive the panel 3 to move backward, thereby driving the moving molding module 1 to move towards the fixed molding module 2 until the two are joined together (existing technology). At this time, the two core blocks 6 in each mold core are also joined together, thereby causing the semi-circular grooves 61 on the two core blocks 6 to also join together.

[0027] As the moving molding module 1 moves, it also drives the guide rods 74 in each cavity molding module to move synchronously, thereby forcing each side slider 73 to move toward the core block 6. This causes each guide block 75 to slide along a guide notch 62 toward the core block 6, so that the end of each core rod 76 in the core rod assembly facing the core block 6 extends into the corresponding two semi-circular grooves 61 and is located between the first semi-circular molding groove 63 and the second semi-circular molding groove 64.

[0028] Next, the slider 77 in the longitudinal core-pulling mechanism 7 is driven downward by manual or automatic means, and then the two first core pillars 79 are driven downward by the seat block 78, so that the ends of the two first core pillars 79 are respectively inserted into the two corresponding and joined first semi-circular forming grooves 63. At the same time, the two second core pillars 72 are driven upward by manual or automatic means, so that the ends of the two second core pillars 72 are respectively inserted into the two corresponding and joined second semi-circular forming grooves 64.

[0029] Subsequently, the molten material enters between the two feed bars 8 through the gate in the panel 3 and the sprue in the moving forming module 1, and then enters into the two interlocking feed grooves 81, which then splits into two streams of material. The stream on the left enters between the two core blocks 6 through the feed notches 65 on the two core blocks 6 in the left mold core, and the stream on the right enters between the two core blocks 6 through the feed notches 65 on the two core blocks 6 in the right mold core. After cooling, two cleaning machine joints (existing technology) are formed.

[0030] Each core rod 76 has a cavity formed between the inner and outer walls of the middle part of the cleaning machine connector at one end facing the core block 6, and the ends of the first core rod 79 and the second core rod 72 respectively form an interconnected channel at the upper and lower ends of the cleaning machine connector.

[0031] After molding is completed, the two first core pillars 79 are driven to move upward until their ends leave the two corresponding first semi-circular molding grooves 63, and the two second core pillars 72 are driven to move downward until their ends leave the two corresponding second semi-circular molding grooves 64. Then, the moving molding module 1 is driven forward to leave the fixed molding module 2 by means of the action mechanism. Then, each guide block 75 is driven to move back to its original position, thereby driving the end of the core rod 76 in each core rod assembly facing the core block 6 to leave the two corresponding semi-circular grooves 61. Finally, the two molding cleaning machine connectors are pushed forward by the ejection component 5 (existing technology).

[0032] This invention can mold multiple cavities evenly distributed on the outer circumference of the cleaning machine connector in one step during injection molding, eliminating the need for two separate steps. This simplifies the processing steps and improves production efficiency. It also eliminates the distribution error of the cavities to improve processing accuracy. Furthermore, it avoids damage to the connector during processing, thus reducing the scrap rate.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A molding die for a cleaning machine connector, comprising a movable molding module and a fixed molding module respectively arranged front to back and cooperating with each other, a panel fixed to the front side of the movable molding module, a base plate disposed on the rear side of the fixed molding module, and an ejection assembly disposed between the base plate and the fixed molding module, characterized in that: The moving forming module and the fixed forming module are further provided with two mold cores distributed on the left and right respectively. The mold cores include two core blocks that are respectively embedded on the rear side of the moving forming module and the front side of the fixed forming module and cooperate with each other. The moving forming module and the fixed forming module are further provided with a longitudinal core-pulling mechanism that cooperates with both mold cores. The longitudinal core-pulling mechanism includes a slider that is movably connected to the front of the fixed forming module to have the function of vertical movement and is located above the two mold cores, a seat block fixed to the lower side of the slider, two first core pillars that are vertically fixed on the seat block, and two second core pillars that are vertically and movably inserted into the lower side of the fixed forming module. The ends of the two first core pillars are vertically downward and respectively set towards the two mold cores, and the ends of the two second core pillars are vertically upward and respectively set towards the two mold cores. The longitudinal core-pulling mechanism also includes two cavity forming units arranged on the left and right sides respectively. Each cavity forming unit includes two cavity forming modules. The two cavity forming modules in the cavity forming unit on the left side are symmetrically arranged on the left and right sides of a mold core on the left side, and the two cavity forming modules in the cavity forming unit on the right side are symmetrically arranged on the left and right sides of a mold core on the right side. The cavity forming module includes a side slider movably connected to the front of the fixed forming module to have left and right translation function, a guide rod obliquely inserted in the side slider, a guide block fixed on the guide rod facing the outer wall of the mold core, and a core rod assembly disposed inside the guide block. The front end of the guide rod is fixed on the moving forming module.

2. The forming mold for a cleaning machine connector according to claim 1, characterized in that, Each of the two core blocks in each mold core has a vertically distributed semi-circular groove on its opposite outer wall. Each core block also has a guide notch groove on its left and right sides of the outer wall on the side where the semi-circular groove is located. The two guide notches grooves divide the semi-circular groove into a first semi-circular forming groove and a second semi-circular forming groove that are distributed vertically.

3. The forming mold for a cleaning machine connector according to claim 2, characterized in that, The ends of the two first core pillars are respectively concentrically positioned above the semi-circular groove on one of the core blocks located on the fixed forming module of the two mold cores, and the ends of the two second core pillars are respectively concentrically positioned below the semi-circular groove on one of the core blocks located on the fixed forming module of the two mold cores.

4. The forming mold for a cleaning machine connector according to claim 1, characterized in that, The mandrel assembly includes multiple mandrels that are laterally inserted into the guide block on one side of the outer wall facing the mandrel. Each mandrel has an arc surface at one end facing the mandrel, and the guide block has a semi-circular concave surface on one side of the outer wall facing the mandrel. Each arc surface is concentric with the semi-circular concave surface.

5. The forming mold for a cleaning machine connector according to claim 2, characterized in that, The guide block in each cavity forming module is movably disposed in a guide notch groove on the same side of the corresponding core block.

6. The forming mold for a cleaning machine connector according to claim 1, characterized in that, The rear side of the moving forming module and the front side of the fixed forming module are each fixed with a symmetrically arranged feeding bar, and each feeding bar is located between two core blocks on the moving forming module or the fixed forming module.

7. The forming mold for a cleaning machine connector according to claim 6, characterized in that, Each of the two feed bars has a feed groove that is laterally distributed and cooperates with each other on its opposite outer wall. Correspondingly, each of the two core blocks in each mold core has a feed notch between the edge of the feed bar on one side and the inner wall of the first semi-circular forming groove on the opposite outer wall. Each feed notch is connected to the opening on the opposite side of the corresponding feed groove.

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