CN207808340U - Plastics Healding box handle mould with buckle type covering plate structure - Google Patents

Abstract

The utility model provides a handle mold of a plastic finishing box with a buckle-type cover plate structure. It belongs to the technical field of plastic product processing. The utility model comprises a fixed template and a movable template, the movable template is connected with a mold frame, the fixed template is provided with a glue injection port, the fixed template is provided with a first cavity and a first core, and the movable template is A second cavity and a second core are provided, and when the fixed plate and the movable plate are clamped, the first cavity and the first core correspond to the positions of the second core and the second cavity respectively, The side wall of the second core close to the second cavity is evenly spaced with several snap grooves, and the several snap grooves are arranged symmetrically along the center line of the second core. The utility model adopts the design of the buckle groove, thereby realizing the fastening connection between the handle and the buckle-type cover plate, so that the buckle-type cover plate can realize a firm connection.

Description

Plastic organizer box handle mold with snap-on cover structure

technical field

The utility model belongs to the technical field of plastic product processing and relates to a handle mold of a plastic finishing box with a snap-on cover plate structure.

Background technique

At present, there is a sorting box that adopts a snap-on cover structure, that is, the cover of the sorting box is formed by a combination of two overlapped covers. This design is for the convenience of sorting. It is necessary to open one of the cover plates to take and place the contents without opening the whole cover plate, which is convenient for users to operate.

Although the snap-on cover has the advantages of convenient storage, the fastness of the lap joint needs to be improved by using the handle, that is, the handle plays the role of fixing the snap-on cover. When the ordinary handle is fastened to the snap-on cover It can only achieve line contact positioning, and the fixing effect on the cover needs to be strengthened. In the process of producing handles, injection molding is usually used, and the mold directly determines the shape and structure of the handle.

Utility model content

The purpose of this utility model is to provide a plastic finishing box handle mold with a snap-on cover plate structure for the above-mentioned problems and defects.

In order to achieve the above object, the utility model provides the following technical solutions:

A plastic finishing box handle mold with a snap-on cover plate structure, comprising a fixed template and a movable template, the movable template is connected with a mold frame, the fixed template is provided with a glue injection port, and the fixed template is provided with The first mold cavity and the first mold core, the second mold cavity and the second mold core are arranged on the movable platen, when the fixed mold plate and the movable mold plate are closed, the first mold cavity and the first mold core are respectively connected with the second mold core. The positions of the second core and the second cavity are corresponding,

The side walls of the second core near the second cavity are evenly spaced with several snap grooves, and the several snap grooves are arranged symmetrically along the center line of the second core.

In the plastic finishing box handle mold with a buckle-type cover plate structure described above, the cross-sectional area of the buckle groove gradually increases from the bottom of the second core to the top, and the buckle groove communicates with the second cavity .

In the above-mentioned plastic finishing box handle mold with snap-on cover plate structure, two positioning blocks symmetrically distributed along the center line of the second core are provided on the side wall of the second core close to the second cavity , The positioning block is provided with a positioning hole.

In the above-mentioned plastic finishing box handle mold with snap-on cover plate structure, the two ends of the side wall of the second core away from the second cavity are respectively provided with a pin shaft forming hole and a pin shaft positioning plate, so The pin shaft positioning plate described above is connected to the pin shaft forming hole.

In the above-mentioned plastic finishing box handle mold with snap-on cover plate structure, the second core is provided with a forming guide groove that is sunken to the inside of the second core, and the forming guide groove is The two sides are respectively connected with the second cavity and the buckle groove.

In the plastic finishing box handle mold with a buckle-type cover structure described above, the first core is connected to the first cavity, and a protruding first core is respectively provided at both ends of the first core. The sealing and positioning part of the second mold core is connected to the second cavity, and a sealing positioning hole sunken to the inside of the second cavity is respectively provided at both ends of the second cavity, when the fixed template and the movable template are closed , the first core snaps into the second cavity and the sealing positioning part seals with the sealing positioning hole.

In the plastic finishing box handle mold with a snap-on cover structure, the injection port is connected to the first cavity with a flow channel, and the flow channel is I-shaped and connected with eight first-type cavity.

In the plastic finishing box handle mold with a buckle-type cover plate structure described above, eight first mold cavities and six first mold cores are arranged on the fixed mold plate, and four parallel molded cores are connected to the two sides of the runner respectively. The first cavity and three parallel first cores, the three parallel first cores are located on both sides of the first core in the middle respectively connected to a first cavity.

In the plastic finishing box handle mold with a snap-on cover plate structure described above, the second core is provided with three ejector pin holes in a triangular distribution, and the mold frame is provided with a plurality of ejector pins, and There is a one-to-one correspondence between the ejector rod and the ejector rod hole.

In the above-mentioned plastic finishing box handle mold with a snap-on cover plate structure, the mold base is movably connected with a push rod backing plate, the push rod is fixed on the push rod backing plate, and the fixed template is connected with a A feed positioning plate is provided with a gun head hole matching with the gun head of the injection molding machine on the feed positioning plate, and the gun head hole corresponds to the position of the injection port.

Compared with the prior art, the utility model has the advantages of:

1. The design of the buckle groove is adopted to realize the buckle connection between the handle and the buckle cover, so that the buckle cover can be firmly connected.

2. Reasonable design can save mold material and mold processing time.

3. The handle obtained by injection molding is smooth and has no burrs.

Other advantages, objectives and features of the utility model will partly be embodied through the following description, and partly will be understood by those skilled in the art through the research and practice of the utility model.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the internal structure of the utility model.

Fig. 3 is a schematic diagram of the utility model after the fixed template is opened.

In the figure: fixed template 1, movable template 2, mold base 3, glue injection port 4, first cavity 5, first core 6, second cavity 7, second core 8, buckle groove 9, positioning Block 10, positioning hole 11, pin shaft forming hole 12, pin shaft positioning plate 13, forming guide groove 14, sealing positioning part 15, sealing positioning hole 16, flow channel 17, ejector rod hole 18, ejector rod 19, ejector rod Backing plate 20, feed positioning plate 21, gun head hole 22.

Detailed ways

As shown in Figure 1, a plastic finishing box handle mold with a snap-on cover plate structure includes a fixed template 1 and a movable template 2, the movable template 2 is connected with a mold frame 3, and the fixed template 1 is provided with an injection mold. Glue port 4, as shown in Figure 3, the fixed template 1 is provided with a first cavity 5 and a first core 6, and the movable template 2 is provided with a second cavity 7 and a second core 8, when When the fixed template 1 and the movable template 2 are closed, the first cavity 5 and the first core 6 correspond to the positions of the second core 8 and the second cavity 7 respectively, and the second core The side wall near the second mold cavity 7 is evenly spaced with several snap grooves 9 , and the several snap grooves 9 are arranged symmetrically along the center line of the second core 8 .

As shown in FIG. 3, three ejector pin holes 18 distributed in a triangle are provided on the second core 8. As shown in FIG. The rod holes 18 correspond one by one, the handle is formed on the second core 8, and the ejector rod 19 is used to eject the handle.

As shown in FIG. 1 , the formwork 3 is movably connected with a ejector backing plate 20, preferably two ejector backing plates, and the ejector 19 is fixed on the ejector backing plate 20, and the fixed template 1 is connected with a The feed positioning plate 21 is provided with a gun head hole 22 matching with the gun head of the injection molding machine on the feed positioning plate 21 , and the gun head hole 22 corresponds to the position of the injection port 4 .

In this embodiment, when the mold is closed, the first core 6 and the second cavity 7 are hermetically fitted, and the handle forms a molding cavity through the cooperation of the first cavity 5 and the second core 8, because the first core 6 and the second cavity The second cavity 7 is sealed and fit, and there is no burr around the handle after molding.

The buckle groove 9 of this embodiment forms a buckle strip after molding, and the buckle strip is fastened with the groove body on the buckle-type cover plate, so that the cover plate is fixed to form an integrated structure.

As shown in Fig. 3, the cross-sectional area of the buckle groove 9 gradually increases from the bottom to the top of the second core 8, and the buckle strip formed from the bottom gradually decreases to the top, and the structural strength is improved. And the hasp groove 9 communicates with the second cavity 7 .

The side wall of the second core 8 near the second cavity 7 is provided with two positioning blocks 10 symmetrically distributed along the center line of the second core. The positioning blocks 10 are located in the middle of the snap groove 9. On the positioning blocks 10 A positioning hole 11 is provided, and the positioning hole 11 is used to form a positioning block, and is used in conjunction with the buckle strip formed by the buckle groove 9 .

The second mold core 8 is provided with a forming diversion groove 14 that is sunken to the inside of the second mold core 8. The molding diversion groove 14 forms a thickened part of the handle, and the two sides of the molding diversion groove 14 are respectively connected to the second cavity 7 and The buckle groove 9 and the thickened part of the handle strengthen the buckle strip and improve the strength of the buckle strip formed by the buckle groove 9 . Two ends of the side wall of the second core 8 away from the second cavity 7 are respectively provided with a pin forming hole 12 and a pin positioning plate 13 , and the pin positioning plate 13 is connected to the pin forming hole 12 .

The first core 6 is connected to the first cavity 5, and a sealing positioning part 15 protruding from the first core is provided at both ends of the first core 6, and the second core 8 is connected to the second core. Cavity 7, at both ends of the second cavity 7 are respectively provided with a sealing positioning hole 16 sunken to the inside of the second cavity, when the fixed platen 1 and the movable platen 2 are molded together, the first core 6 snaps into the second cavity In the second cavity 7 and the sealing positioning part 15 is in sealing fit with the sealing positioning hole 16 .

The cooperation between the sealing positioning portion 15 and the sealing positioning hole 16 is helpful for positioning, thereby achieving a high degree of sealing between the first core 6 and the second cavity 7 .

When the movable platen and the fixed platen are molded together, the injection port 4 is connected to the first cavity 5 with a flow channel 17 , and the flow channel 17 is H-shaped and connected with eight first cavity 5 . That is to say, the utility model can produce eight handles at one time, that is, one injection molding can realize the production of eight handles.

Preferably, the fixed plate 1 is provided with eight first cavities 5 and six first cores 6, and the two sides of the runner 17 are respectively connected with four first cavities 5 arranged parallel to each other and three parallel cavities. First mold core 6 , three first mold cores 6 parallel to each other are located in the middle, and both sides of the first mold core 6 are respectively connected with a first mold cavity 5 .

The above arrangement saves two first mold cores 6 and two second mold cavities 7, which reduces the steps of mold processing.

The working principle of this embodiment is:

During injection molding, the fixed template 1 and the movable template 2 are molded together, the gun tip is inserted into the gun tip hole 22 for injection molding, the feeding positioning plate 21 is pressed against the fixed template 1, and the melted plastic enters the first cavity 5 and the first cavity 5 through the injection port 4. In the mold cavity formed by the second mold core 8, a design of one out of eight is adopted, and eight handles are molded at one time. Core 8 is ejected.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Although the fixed template 1, the movable template 2, the mold frame 3, the injection port 4, the first cavity 5, the first core 6, the second cavity 7, the second core 8, and the buckle are often used in this paper. Groove 9, positioning block 10, positioning hole 11, pin shaft forming hole 12, pin shaft positioning plate 13, forming guide groove 14, sealing positioning part 15, sealing positioning hole 16, flow channel 17, ejector pin hole 18, ejector pin 19. Terms such as ejector backing plate 20, feed positioning plate 21, gun head hole 22, etc., but the possibility of using other terms is not excluded. These terms are only used to describe and explain the essence of the utility model more conveniently; interpreting them as any kind of additional limitation is contrary to the spirit of the utility model.

Claims (10)

1. a plastic finishing box handle mold with snap-on cover plate structure, comprises fixed formwork (1) and movable formwork (2), and described movable formwork (2) is connected with formwork (3), fixed formwork ( 1) is provided with a glue injection port (4), and is characterized in that a first cavity (5) and a first core (6) are provided on the fixed template (1), and a movable template (2) is provided with There is a second cavity (7) and a second core (8). When the fixed template (1) and the movable template (2) are closed, the first cavity (5) and the first core (6) ) respectively correspond to the positions of the second core (8) and the second cavity (7), The side wall of the second core (8) close to the second cavity (7) is evenly spaced with several snap grooves (9), and several snap grooves (9) are arranged along the second core (8) centerline symmetric setting. 2. The plastic finishing box handle mold with snap-on cover plate structure according to claim 1, characterized in that, the cross-sectional area of the snap groove (9) is determined by the bottom of the second core (8). It gradually increases toward the top, and the hasp groove (9) communicates with the second cavity (7). 3. The plastic finishing box handle mold with snap-on cover plate structure according to claim 2, characterized in that, the second core (8) is provided on the side wall close to the second cavity (7). There are two positioning blocks (10) distributed symmetrically along the center line of the second core, and positioning holes (11) are arranged on the positioning blocks (10). 4. The plastic finishing box handle mold with snap-on cover structure according to claim 3, characterized in that, the second core (8) is far away from the two ends of the side wall of the second cavity (7) A pin shaft forming hole (12) and a pin shaft positioning plate (13) are respectively provided, and the pin shaft positioning plate (13) is connected to the pin shaft forming hole (12). 5. The plastic finishing box handle mold with snap-on cover plate structure according to claim 2, characterized in that, the second core (8) is provided with a concave shape toward the inside of the second core (8). The forming guide groove (14), and the two sides of the forming guide groove (14) are respectively connected with the second cavity (7) and the buckle groove (9). 6. The plastic finishing box handle mold with snap-on cover plate structure according to claim 1, characterized in that, the first core (6) is connected to the first cavity (5), and in the first mold The two ends of the core (6) are respectively provided with a sealing positioning part (15) protruding from the first core, and the second core (8) is connected to the second cavity (7). Both ends of (7) are respectively provided with a sealing positioning hole (16) sunken to the inside of the second cavity. When the fixed platen (1) and the movable platen (2) are closed, the first core (6) snaps into the second cavity (7) and the sealing positioning part (15) is in sealing fit with the sealing positioning hole (16). 7. The plastic finishing box handle mold with snap-on cover plate structure according to claim 1, is characterized in that, when the movable template and the fixed template are molded together, the described glue injection port (4) uses a runner ( 17) Connect the first cavity (5), the flow channel (17) is I-shaped and connected with eight first cavity (5). 8. The plastic finishing box handle mold with snap-on cover plate structure according to claim 7, characterized in that, the fixed template (1) is provided with eight first cavity (5) and six first-type The core (6), the two sides of the runner (17) are respectively connected with four first mold cavities (5) arranged parallel to each other and three first mold cores (6) parallel to each other, and three first mold cores (6) parallel to each other. The two sides of the first mold core (6) in which the core (6) is located in the middle are respectively connected with a first mold cavity (5). 9. The plastic finishing box handle mold with snap-on cover plate structure according to claim 1, characterized in that, said second core (8) is provided with three ejector pin holes (18) distributed in a triangle ), the mold base (3) is provided with some ejector pins (19), and the ejector pins (19) correspond to the ejector pin holes (18) one by one. 10. The plastic finishing box handle mold with snap-on cover plate structure according to claim 9, characterized in that, the mold base (3) is movably connected with a push rod backing plate (20), and the push rod ( 19) It is fixed on the ejector pin backing plate (20), and a feed positioning plate (21) is connected to the fixed template (1), and the feed positioning plate (21) is provided with the gun head of the injection molding machine. A matching gun head hole (22), the gun head hole (22) corresponds to the position of the glue injection port (4).