Flat cover body injection mold

Abstract

The utility model discloses a flat cover body injection mold which comprises a first mold frame bottom plate and a second mold frame bottom plate, an ejector pin fixing plate, a first mold frame, a mold core, a bottom mold plate and a second mold frame are sequentially arranged between the first mold frame bottom plate and the second mold frame bottom plate, and the mold core and the bottom mold plate are embedded into the second mold frame. A gap is reserved between the mold core and the bottom mold plate, a first pressing block and a second pressing block are arranged on the two sides of the mold core, the inner side of the first pressing block and the inner side of the second pressing block are connected with the mold core, and the outer side of the first pressing block and the outer side of the second pressing block are connected with a first air cylinder. The mold core and the pressing block are connected together, the mold core can be prevented from moving in the up-down direction and can also be prevented from moving in the left-right direction, in this way, the gap between the mold core and the bottom mold plate can be prevented from being increased, and the situation that the thickness of a formed flat cover body product is not uniform is avoided.

Description

Technical Field

[0001] The utility model relates to an injection mold, in particular to a flat cover injection mold. Background Art

[0002] Injection molding is a processing method used in mass production of certain complex-shaped parts. Simply put, the heated and molten material is injected into the mold cavity by high pressure, and after cooling and solidification, a molded product is obtained. It has the advantages of fast production speed, high efficiency, and precise size, and is suitable for mass production and processing of complex-shaped products.

[0003] The injection mold consists of a movable mold and a fixed mold. The movable mold is installed on the movable mold plate of the injection molding machine, and the fixed mold is installed on the fixed mold plate of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form a pouring system and a cavity. When the mold is opened, the movable mold and the fixed mold are separated to take out the plastic product.

[0004] However, the heated and melted plastic ejected at high pressure will increase the gap between the mold core and the bottom mold plate of the existing cover body injection mold, affecting the thickness of the cover body molding. Utility Model Content

[0005] In order to solve the defects of the prior art mentioned above, the utility model proposes an injection mold which can avoid uneven thickness of the cover body.

[0006] The technical solution of the utility model is implemented as follows: a flat cover body injection mold, comprising a first mold frame bottom plate and a second mold frame bottom plate, a pin fixing plate, a first mold frame, a mold core, a bottom mold plate and a second mold frame are sequentially arranged between the first mold frame bottom plate and the second mold frame bottom plate, the mold core and the bottom mold plate are embedded in the second mold frame, a gap is left between the mold core and the bottom mold plate, a first clamping block and a second clamping block are arranged on both sides of the mold core, the inner sides of the first clamping block and the second clamping block are connected to the mold core, and the outer sides of the first clamping block and the second clamping block are connected to the first cylinder, the bottom mold plate comprises a bottom plate and two side edges extending upward, and the bottom surfaces of the first clamping block and the second clamping block are in contact with the upper end surfaces of the side edges of the bottom mold plate.

[0007] In one of the embodiments, two side edges of the bottom template are arranged opposite to each other, namely a first side edge and a second side edge, and the first side edge and the second side edge are directly connected to the bottom plate with an arc transition.

[0008] In one embodiment, a runner column is provided in the middle of the first mold frame bottom plate, one end of the runner column is placed outside the first mold frame plate, and the other end of the runner column sequentially passes through the ejector fixing plate, the first mold frame, the mold core, and the gap between the mold core and the bottom mold plate.

[0009] In one embodiment, the end of the runner column located outside the first mold frame plate is funnel-shaped.

[0010] In one embodiment, a plurality of ejectors are provided on the ejector fixing plate, and the ejector fixing plate is connected to the second cylinder.

[0011] In one embodiment, the mold core is provided with a plurality of through holes for the runner columns and ejector pins to pass through.

[0012] In one of the embodiments, the second mold frame is provided with a receiving groove for placing the mold core, and the shape of the receiving groove is adapted to the outer contour of the mold core.

[0013] The heated and melted plastic is injected into the mold cavity by the injection molding machine at high pressure, and the heated and melted plastic is sprayed at high speed to the gap between the mold core and the bottom template through the runner column. The gap between the bottom edge and the side edge of the bottom template and the mold core constitutes a molded flat cover product. After cooling and solidification, a formed product is obtained. The utility model arranges clamping blocks on both sides of the mold core, and the mold core and the clamping blocks are connected together, which can prevent the mold core from moving in the up and down directions and the left and right directions. In this way, the gap between the mold core and the bottom template can be prevented from increasing, and the uneven thickness of the molded flat cover product can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the positions of the mold core and the bottom mold plate of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the second mold frame in the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the midsole template of the utility model.

[0018] In the figure, 1, the first mold frame bottom plate, 2, the second mold frame bottom plate, 3, the ejector fixing plate, 4, the first mold frame, 5, the mold core, 6, the bottom mold plate, 7, the second mold frame, 8, the first clamping block, 9, the second clamping block, 10, the first cylinder, 601, the bottom plate, 602, the first side, 603, the second side, 11, the runner column, 12, the second cylinder, 13, the receiving groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0022] like Figure 1 to Figure 2 As shown, the present embodiment discloses a flat cover body injection mold, comprising a first mold frame bottom plate 1 and a second mold frame bottom plate 2, wherein a pin fixing plate 3, a first mold frame 4, a mold core 5, a bottom mold plate 6 and a second mold frame 7 are sequentially arranged between the first mold frame bottom plate 1 and the second mold frame bottom plate 2, the mold core and the bottom mold plate 6 are embedded in the second mold frame 7, a gap is left between the mold core 5 and the bottom mold plate 6, a first clamping block 8 and a second clamping block 9 are arranged on both sides of the mold core 5, the inner sides of the first clamping block 8 and the second clamping block 9 are connected to the mold core 5, and the outer sides of the first clamping block 8 and the second clamping block 9 are connected to the first cylinder 10, the bottom mold plate 6 comprises a bottom plate 601 and two side edges extending upward, namely a first side edge 602 and a second side edge 603, wherein the bottom surface of the first clamping block 8 contacts the upper end surface of the first side edge 602, and the bottom surface of the second clamping block 9 contacts the upper end surface of the second side edge 603.

[0023] like Figure 4 As shown, in this embodiment, the first side edge 602, the second side edge 603 and the bottom plate 601 are directly connected with an arc transition.

[0024] In this embodiment, a runner column 11 is provided in the middle position of the first mold frame bottom plate 1, one end of the runner column 11 is placed outside the first mold frame plate 1, and the other end of the runner column 11 passes through the ejector fixing plate 3, the first mold frame 4, the mold core 5 in sequence until the gap between the mold core 5 and the bottom mold plate 6.

[0025] In this embodiment, the end of the runner column 11 disposed outside the first mold frame plate 1 is funnel-shaped.

[0026] In this embodiment, a plurality of ejectors are disposed on the ejector fixing plate 3 , and the ejector fixing plate 3 is connected to the second cylinder 12 .

[0027] In this embodiment, the mold core 5 is provided with a plurality of through holes for the runner pillars 11 and the ejector pins to pass through.

[0028] like Figure 3 As shown, in this embodiment, the second mold frame 7 is provided with a receiving groove 13 for placing the mold core 5 , and the shape of the receiving groove 13 is adapted to the outer contour of the mold core 5 .

[0029] The utility model arranges clamping blocks on both sides of the mold core, and the mold core and the clamping blocks are connected together, which can prevent the mold core from moving in the up and down directions and the left and right directions, thereby preventing the gap between the mold core and the bottom template from increasing and preventing the molded flat cover product from having uneven thickness.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flat cover injection mold, comprising a first mold frame bottom plate and a second mold frame bottom plate, wherein an ejector fixing plate, a first mold frame, a mold core, a bottom mold plate and a second mold frame are sequentially arranged between the first mold frame bottom plate and the second mold frame bottom plate, characterized in that: The mold core and the bottom mold plate are embedded in the second mold frame, a gap is left between the mold core and the bottom mold plate, a first clamping block and a second clamping block are provided on both sides of the mold core, the inner sides of the first clamping block and the second clamping block are connected to the mold core, and the outer sides of the first clamping block and the second clamping block are connected to the first cylinder, the bottom mold plate includes a bottom plate and two side edges extending upward, and the bottom surfaces of the first clamping block and the second clamping block are in contact with the upper end surfaces of the side edges of the bottom mold plate.

2. The flat cover injection mold according to claim 1, characterized in that: The two side edges of the bottom template are arranged opposite to each other, namely a first side edge and a second side edge, and the first side edge and the second side edge are directly connected with the bottom plate in a circular arc transition.

3. The flat cover injection mold according to claim 1, characterized in that: A runner column is provided in the middle of the first mold frame bottom plate, one end of the runner column is placed outside the first mold frame plate, and the other end of the runner column sequentially passes through the ejector fixing plate, the first mold frame, the mold core and the gap between the mold core and the bottom mold plate.

4. The flat cover injection mold according to claim 3, characterized in that: The end of the runner column disposed outside the first mold frame plate is funnel-shaped.

5. The flat cover injection mold according to claim 3, characterized in that: The ejector pin fixing plate is provided with a plurality of ejectors, and the ejector pin fixing plate is connected to the second cylinder.

6. The flat cover injection mold according to claim 5, characterized in that: The mold core is provided with a plurality of through holes for the runner columns and ejector pins to pass through.

7. The flat cover injection mold according to claim 1, characterized in that: The second mold frame is provided with a receiving groove for placing the mold core, and the shape of the receiving groove is adapted to the outer contour of the mold core.

Images