Injection mold with automatic ejection function

Abstract

The utility model relates to the field of mold manufacturing, in particular to an injection mold with an automatic ejection function. The utility model provides an injection mold with an automatic ejection function, which comprises a lower mold, guide rods, an upper mold and a glue injection pipe, the guide rods are fixedly connected to the periphery of the upper part of the lower mold, the upper mold is arranged on the guide rods in a sliding manner, the top in the upper mold is communicated with the glue injection pipe, and the injection mold further comprises a pressing rod, an ejection block, a connecting rod, a push rod and a limiting block, a pressing rod is fixedly connected to the bottom of the upper mold, an ejector block is fixedly connected to the middle in the upper mold, connecting rods are rotationally arranged on the left side and the right side of the bottom of the ejector block, and push rods are slidably arranged on the connecting rods. And the upper mold moves upwards, so that the ejection block can eject up the formed mold, the purpose of automatically ejecting out the mold is achieved, and the use convenience of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mould manufacturing, especially a injection mould with automatic ejection function. BACKGROUND

[0002] The injection mould is a tool for producing plastic products, which refers to the shaped product obtained by injecting the heated and melted plastic into the mould cavity by the injection machine under high pressure, and then cooling and solidifying, and the mould needs to be taken out after moulding, in order to avoid deformation or damage to the mould when taking out, the injection mould with automatic ejection function is usually used to take out the mould, so as to ensure the quality of the product.

[0003] The patent with the patent authorization announcement No. CN205130272U discloses an injection mould, which comprises a stripping plate, a front mould plate and a rear mould plate, the stripping plate and the front mould plate are provided with a flow channel module, the flow channel module comprises a sprue bush provided with a main flow channel and a front mould insert provided with a branch flow channel, although the above-mentioned patent can save injection materials and reduce costs, the injection mould needs to be provided with a material pulling needle to be pulled out of the accommodating hole of the stripping insert, so that the injection material at the front end of the material pulling needle is extruded and falls off, the taking-out mode is relatively troublesome, and the injection material is easy to be pulled and deformed when being taken out, thereby affecting the quality of the mould output.

[0004] Therefore, it is urgent to provide an injection mould with automatic ejection function, which achieves the purpose of automatically ejecting the mould through the parts such as the pressing rod, the top block, the connecting rod and the push rod. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings that the injection mould needs to be provided with a material pulling needle to be pulled out of the accommodating hole of the stripping insert, so that the injection material at the front end of the material pulling needle is extruded and falls off, the taking-out mode is relatively troublesome, and the injection material is easy to be pulled and deformed when being taken out, the utility model provides an injection mould with automatic ejection function, which achieves the purpose of automatically ejecting the mould through the parts such as the pressing rod, the top block, the connecting rod and the push rod.

[0006] The utility model realizes through the following technical ways: an injection mould with automatic ejection function, including lower mould, guide rod, upper mould and glue injection pipe, the lower mould upper part all fixed junctions have the guide rod, the guide rod is provided with the upper mould in the sliding mode, the upper mould is opened in two positioning holes, the upper mould top is connected with the glue injection pipe, still including the pressing rod, the top block, the connecting rod, the push rod and the limit block, the upper mould bottom is fixed with the pressing rod, the upper mould middle part is fixed with the top block, the top block bottom left and right sides are all provided with the connecting rod in the rotating mode, the connecting rod is provided with the push rod in the sliding mode, the push rod all is fixed with the limit block, the limit block is connected with the elastic piece between the push rod, the elastic piece is covered on the push rod.

[0007] In a preferred embodiment of the utility model, still include detector, controller, alarm lamp and radiator, the top block bottom left side is installed with detector, the detector front side is installed with controller, the lower mould inside front side is installed with radiator, the radiator left upper side is installed with alarm lamp.

[0008] In a preferred embodiment of the utility model, still include fixed block and rotary cylinder, the lower mould outside evenly interval fixedly connected with fixed block, install rotary cylinder on fixed block.

[0009] In a preferred embodiment of the utility model, still include guide column, the lower mould is evenly interval fixedly connected with guide column.

[0010] In a preferred embodiment of the utility model, still include placing frame, the lower mould rear side is fixedly connected with placing frame.

[0011] In a preferred embodiment of the utility model, still include dust screen, the radiator front side is provided with dust screen.

[0012] The above structure of the utility model is described, and the design starting point, concept and advantage of the utility model are: 1, by the upper die upward movement, the top block can be formed and the die is lifted, thereby achieving the purpose of automatic ejection die, improve the use convenience of the device.

[0013] 2, by starting rotary cylinder, the output shaft of rotary cylinder rotates inward and presses the four ends of upper die, thereby can fix upper die, avoid the offset of upper die when forming and affect the die forming.

[0014] 3, by starting radiator to heat dissipation lower die, thereby can avoid the temperature too high and affect the strength of die forming, enhance the production quality of die plastic product. DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0016] Figure 2 It is the three-dimensional structure schematic diagram of injection tube, positioning hole and other parts of the utility model.

[0017] Figure 3 It is the three-dimensional structure schematic diagram of detector, controller and other parts of the utility model.

[0018] Figure 4 It is the three-dimensional structure schematic diagram of limiting block, elastic member and other parts of the utility model.

[0019] Figure 5 It is the three-dimensional structure schematic diagram of fixed block, rotary cylinder and other parts of the utility model.

[0020] The drawings show: 1 - lower mold, 2 - guide rod, 3 - upper mold, 4 - glue injection pipe, 5 - pressing rod, 6 - top block, 7 - connecting rod, 8 - push rod, 9 - limiting block, 10 - elastic piece, 11 - detector, 12 - controller, 13 - alarm light, 14 - radiator, 15 - fixed block, 16 - rotary cylinder, 17 - guide column, 18 - positioning hole, 19 - placing frame, 20 - dustproof net. DETAILED DESCRIPTION

[0021] It is first to be pointed out that in the different described embodiments, the same components are provided with the same reference signs or the same component names, wherein the disclosure contained in the entire specification can be transferred to the same components with the same reference signs or the same component names in the sense. The selected position descriptions in the specification, for example, up, down, lateral, etc., also refer to the directly described and shown drawings and are transferred to the new position in the sense when the position changes. Example 1

[0022] An injection mold with automatic ejection function, as shown in Figure 1 , Figure 2 and Figure 4 , comprising a lower mold 1, a guide rod 2, an upper mold 3 and a glue injection pipe 4, the upper part of the lower mold 1 is connected with the vertically upward guide rod 2 through bolts, the upper mold 3 is slidably arranged on the guide rod 2, the upper mold 3 is communicated with the glue injection pipe 4 at the top, further comprising a pressing rod 5, a top block 6, a connecting rod 7, a push rod 8 and a limiting block 9, the bottom of the upper mold 3 is fixed with the pressing rod 5 by welding, the middle part of the upper mold 3 is provided with the top block 6 by welding, the left and right sides of the bottom of the top block 6 are rotatably provided with the connecting rod 7, the push rod 8 is slidably arranged on the connecting rod 7, the limiting block 9 is fixed on the push rod 8 by welding, the elastic piece 10 is connected between the limiting block 9 and the push rod 8, and the elastic piece 10 is sleeved on the push rod 8.

[0023] When the device is to be used, the worker pours the injection liquid from the glue pipe 4 into the upper mold 3, then the worker moves the upper mold 3 downward, so that the upper mold 3 is attached to the lower mold 1, the upper mold 3 moves downward to drive the pressing rod 5 to move downward, the pressing rod 5 moves downward to contact and extrude the push rod 8, the push rod 8 moves outward, the elastic element 10 is compressed, the push rod 8 moves outward to drive the connecting rod 7 and the top block 6 to move downward, the injection liquid is transported into the lower mold 1 through the glue pipe 4, and then the upper mold 3 and the lower mold 1 can be in a closed state for injection molding, when the injection mold is formed, the worker moves the upper mold 3 upward, the upper mold 3 drives the pressing rod 5 to move upward, so that the pressing rod 5 moves upward and is out of contact with the push rod 8, the elastic element 10 is stretched to drive the push rod 8 to move inward to drive the connecting rod 7 and the top block 6 to move upward, so that the top block 6 can lift the formed mold, thereby achieving the purpose of automatically ejecting the mold, improving the use convenience of the device, and after completion, the upper mold 3 can be loosened. Example 2

[0024] Based on example 1, referring to Figure 3 It also includes a detector 11, a controller 12, an alarm light 13 and a radiator 14, the bottom left side of the top block 6 is provided with the detector 11 capable of detecting the temperature inside the lower mold 1, the front side of the detector 11 is provided with the controller 12, and the front side inside the lower mold 1 is provided with the radiator 14 capable of radiating heat inside the lower mold 1, and the upper left side of the radiator 14 is provided with the alarm light 13.

[0025] When the upper mold 3 and the lower mold 1 are injection molded, the worker starts the controller 12 to turn on the detector 11, so that the detector 11 can detect the injection temperature inside the lower mold 1, when the detector 11 detects that the temperature inside the lower mold 1 is too high, the detector 11 transmits the information to the controller 12, the controller 12 starts the alarm light 13 to issue an alarm to remind the worker to cool down the inside of the lower mold 1, then starts the radiator 14 to cool down the lower mold 1, thereby avoiding that the high temperature affects the strength of the mold forming, and enhancing the production quality of the mold plastic products.

[0026] Referring to Figure 5 It also includes a fixed block 15 and a rotary air cylinder 16, the outer part of the lower mold 1 is uniformly and interval fixed by welding with the fixed block 15, and the fixed block 15 is provided with the rotary air cylinder 16.

[0027] When the upper mold 3 is attached to the lower mold 1, the worker starts the rotary air cylinder 16, the output shaft of the rotary air cylinder 16 rotates inward to press the four ends of the upper mold 3, thereby fixing the upper mold 3, avoiding that the upper mold 3 deviates during forming and affecting the mold forming.

[0028] Referring to Figure 3As shown, guide posts 17 are also included, and the lower mold 1 is fixedly connected with guide posts 17 at even intervals.

[0029] See Figure 1 As shown, a placement frame 19 is also included. The placement frame 19 capable of placing tools is fixed to the rear side of the lower mold 1 by welding.

[0030] See Figure 1 As shown, a dustproof net 20 is also included. The dustproof net 20 is provided on the front side of the radiator 14.

[0031] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An injection mold with automatic ejection function, comprising a lower mold (1), a guide rod (2), an upper mold (3) and a glue injection pipe (4), the lower mold (1) is fixed with the guide rod (2) around the upper part, the guide rod (2) is slidably provided with the upper mold (3), and the upper mold (3) is communicated with the glue injection pipe (4) at the top, characterized in that, The present invention also includes a pressure rod (5), a top block (6), a connecting rod (7), a push rod (8) and a limit block (9), wherein the bottom of the upper mold (3) is fixedly connected with the pressure rod (5), the middle part of the upper mold (3) is fixedly connected with the top block (6), the bottom left and right sides of the top block (6) are rotatably provided with connecting rods (7), the connecting rod (7) is slidably provided with a push rod (8), the push rod (8) is fixedly connected with the limit block (9), an elastic member (10) is connected between the limit block (9) and the push rod (8), and the elastic member (10) is sleeved on the push rod (8).

2. The injection mold with automatic ejection function according to claim 1, characterized in that, The invention also includes a detector (11), a controller (12), an alarm light (13) and a radiator (14), wherein the detector (11) is installed on the left side of the bottom of the top block (6), the controller (12) is installed on the front side of the detector (11), the radiator (14) is installed on the inner front side of the lower mold (1), and the alarm light (13) is installed on the upper left side of the radiator (14).

3. The injection mold with automatic ejection function according to claim 2, characterized in that, It also includes a fixed block (15) and a rotating cylinder (16). The fixed blocks (15) are fixedly connected to the outside of the lower mold (1) at even intervals, and the rotating cylinder (16) is installed on the fixed block (15).

4. The injection mold with automatic ejection function according to claim 3, characterized in that, It also includes guide posts (17), which are fixedly connected to the lower mold (1) at even intervals.

5. The injection mold with automatic ejection function according to claim 4, characterized in that, It also includes a placement frame (19), and the rear side of the lower mold (1) is fixedly connected to the placement frame (19).

6. The injection mold with automatic ejection function according to claim 5, characterized in that, A dustproof net (20) is also included, and the front side of the radiator (14) is provided with the dustproof net (20).

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