Unhooking mechanism of mold

Abstract

The utility model discloses an unhooking mechanism of a die, which relates to the field of dies and comprises a fixing rod, an unhooking piece and an adjusting piece. According to the utility model, the mounting piece and the hook are arranged on the fixed rod, so that the device can drive the pitched roof to move through the hook when the upper mold moves, the ejector pin demolding effect is achieved, meanwhile, the unhooking piece is arranged on the fixed rod, and the movable sleeve on the unhooking piece can separate the hook from the convex block on the pitched roof through the unhooking groove; an adjusting piece is arranged on one side of the fixing rod, the adjusting piece drives a screw rod to move up and down through a rotating disc and a turbine worm, then a movable sleeve is driven to move up and down, the distance between the movable sleeve and the hook is adjusted, and the distance can be accurately adjusted through a distance measuring sensor and a sensor receiving end; and the demolding efficiency and the demolding quality of the device are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and in particular relates to a decoupling mechanism of a mold. Background Art

[0002] Injection molds are a type of molding mold widely used in the production of plastic products. When plastic products are demolded after molding, an ejector device is required to separate the product from the mold. The existing ejector structure generally uses an ejector plate and an ejector pin to eject the product. At the same time, the ejector plate is usually driven by a nitrogen spring to drive the ejector plate of the fixed mold to eject the ejector plate. The nitrogen spring has a short service life and is prone to fatigue failure during use. In addition, the spring pressure of the nitrogen spring is very high, which causes the ejector plate to be ejected quickly during the ejection process. The hook part on the product is prone to tearing.

[0003] The patent with publication number CN108162312A discloses a dashboard mold hook structure, including a pin plate, a pin block is provided below the pin plate, a connecting block is provided on the pin plate, a pull rod is hingedly provided on the connecting block, a wear-resistant block is provided on the outer wall of the movable mold, a pull hook is provided at the end of the pull rod away from the connecting block, a receiving groove is provided on the upper surface of the pull hook, and the wear-resistant block is limited in the receiving groove.

[0004] As shown in the aforementioned application, existing molds generally use a hook structure to drive the inclined top structure to move, and the unhooking operation is performed by a unhooking mechanism on the hook. The existing unhooking mechanism does not have a precise adjustment structure, and its adjustment accuracy is low, which cannot meet the demolding requirements of existing molds. In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A mold uncoupling mechanism, comprising:

[0007] A fixing rod, wherein a mounting plate is fixed to one side of the bottom of the fixing rod, a hook is fixed to one side of the top of the fixing rod, and a dovetail slot is opened in the middle of the other side of the fixing rod;

[0008] A decoupling member, comprising a movable sleeve, the movable sleeve being sleeved on the outer side of the middle portion of the fixed rod, and a decoupling groove being formed on one side of the top end of the movable sleeve;

[0009] An adjusting piece is provided at the lower part of one side of the fixing rod and is used for adjusting the height of the unhooking piece.

[0010] Preferably, an adjustment panel is fixed to one side of the top of the fixing rod, and a distance measuring sensor is installed on the lower surface of the adjustment panel.

[0011] Preferably, a dovetail slider is fixed to the middle of the inner wall of the other side of the movable sleeve, and the dovetail slider is located in the dovetail slot.

[0012] Preferably, an extension block is fixed to the bottom end of one side of the movable sleeve, a sensor receiving end is embedded on the upper surface of the extension block, the sensor receiving end is adapted to the distance measuring sensor, and a screw is fixed to the middle of the lower surface of the extension block.

[0013] Preferably, the adjusting member includes a protrusion, which is fixed on the mounting plate, a groove is provided inside the protrusion, a guide groove is provided through the middle of the groove, the guide groove is connected to the screw, a worm gear is provided inside the groove, an annular block is fixed to the bottom of the worm gear, the annular block is movably connected to the groove through a bearing, a screw groove is provided through the middle of the worm gear, and the screw groove is connected to the screw.

[0014] Preferably, one end of the worm wheel is connected to a worm, one end of the worm is movably connected to the inner wall of the groove through a bearing, and the other end of the worm is fixed with a turntable, which is located outside the protrusion.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The utility model provides a mounting plate and a hook on the fixed rod, so that the device can drive the inclined ejector to move through the hook when the upper mold moves, thereby playing the role of ejector demoulding. At the same time, a unhooking piece is provided on the fixed rod, and the movable sleeve on the unhooking piece can separate the hook from the protrusion on the inclined ejector through the unhooking groove, thereby playing the role of unhooking.

[0017] The utility model provides an adjusting member on one side of a fixed rod. The adjusting member drives the screw to move up and down through a turntable and a worm gear, thereby driving the movable sleeve to move up and down, thereby adjusting the distance between the movable sleeve and the hook. The distance can be accurately adjusted through a distance measuring sensor and a sensor receiving end, thereby improving the demoulding efficiency and demoulding quality of the device.

[0018] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the attached figure:

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the fixing rod structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the decoupling member of the utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the adjusting member of the utility model.

[0024] In the figure: fixing rod 1, mounting plate 11, hook 12, dovetail slide 13, adjustment panel 14, distance sensor 15, unhooking member 2, movable sleeve 21, unhooking groove 22, dovetail slider 23, extension block 24, sensor receiving end 25, screw 26, adjusting member 3, protrusion 31, groove 32, guide groove 33, worm gear 34, annular block 35, screw groove 36, worm 37, turntable 38. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0026] like Figures 1 to 4 As shown, a mold unhooking mechanism includes a fixing rod 1, a unhooking member 2 and an adjusting member 3.

[0027] Specifically, a mounting plate 11 is fixed to one side of the bottom of the fixing rod 1, and the mounting plate 11 is fixed to the lower mold through the mounting holes and bolts at both ends thereof. A hook 12 is fixed to one side of the top of the fixing rod 1, and the hook 12 cooperates with the protrusion 31 on the tilting mechanism, and plays a limiting role on the tilting mechanism when the upper mold moves upward, so that the tilting mechanism and the upper mold are relatively displaced, achieving the effect of demoulding the upper mold. A dovetail groove 13 is provided in the middle of the other side of the fixing rod 1, and an adjustment panel 14 is fixed to one side of the top of the fixing rod 1. A distance sensor 15 is installed on the lower surface of the adjustment panel 14, and the distance threshold of the distance sensor 15 can be set by adjusting the panel 14.

[0028] More specifically, the unhooking part 2 includes a movable sleeve 21, which is sleeved on the outer middle part of the fixed rod 1, and a unhooking groove 22 is provided on one side of the top of the movable sleeve 21. The unhooking groove 22 can separate the protrusion on the inclined top mechanism from the hook 12, thereby playing a role of unhooking, and preventing the inclined top mechanism from becoming too long and causing damage to the product. A dovetail slider 23 is fixed to the middle of the inner wall on the other side of the movable sleeve 21. The dovetail slider 23 is located in the dovetail groove 13, which plays a guiding role, so that the movable sleeve 21 keeps moving vertically up and down. An extension block 24 is fixed to the bottom end of one side of the movable sleeve 21, and the upper surface of the extension block 24 is inlaid with a sensor receiving end 25. The sensor receiving end 25 is adapted to the distance measuring sensor 15, and plays a role of accurately adjusting the distance. A screw 26 is fixed to the middle of the lower surface of the extension block 24.

[0029] More specifically, the adjusting member 3 is provided at the lower part of one side of the fixing rod 1 for adjusting the height of the unhooking member 2. The adjusting member 3 includes a protrusion 31, which is fixed to the mounting plate. A groove 32 is provided inside the protrusion 31. A guide groove 33 is provided through the middle of the groove 32. The guide groove 33 is connected to the screw 26. A worm gear is provided inside the groove 32. An annular block 35 is fixed to the bottom of the worm gear. The annular block 35 is movably connected to the groove 32 through a bearing. A screw groove 36 is provided through the middle of the worm gear. 36 is connected to the screw 26 through, one end of the worm wheel 34 is connected to a worm 37, one end of the worm 37 is movably connected to the inner wall of the groove 32 through a bearing, and the other end of the worm 37 is fixed with a turntable 38, which is located on the outside of the protrusion 31. The turntable 38 drives the worm 37 to rotate, and the worm 37 drives the worm wheel 34 to rotate. The worm wheel 34 drives the screw 26 to move up and down through the screw groove 36, and then drives the movable sleeve 21 to move up and down, and adjusts the height of the movable sleeve 21 to meet the demoulding and unhooking accuracy of the device.

[0030] When the device is working, the hook 12 on the fixed rod 1 first hooks the protrusion on the inclined ejection mechanism, which plays a role in limiting the inclined ejection mechanism. When the upper mold moves, the inclined ejection mechanism and the upper mold are relatively displaced, which plays a role in demoulding, until the protrusion on the inclined ejection mechanism contacts the unhooking groove 22 on the movable sleeve 21, separating the protrusion from the hook 12, releasing the limit of the inclined ejection mechanism, and avoiding the damage of the product caused by the long stroke of the inclined ejection mechanism. Before the device works, adjust the movable sleeve 21 according to the corresponding mold and product. The unhooking distance of the unhooking groove 22 is determined by first setting the distance measurement threshold on the adjustment panel 14, and then rotating the turntable 38. The turntable 38 drives the worm 37 to rotate, and the worm 37 drives the worm wheel 34 to rotate. The worm wheel 34 drives the screw 26 to move up and down through the screw groove 36, and then drives the movable sleeve 21 to move up and down. The height of the movable sleeve 21 is adjusted until the distance between the distance sensor 15 and the sensor receiving end 25 meets the threshold, and the distance sensor 15 issues an alarm. At this time, the turntable 38 is stopped, thereby improving the adjustment accuracy of the device.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mold unhooking mechanism, characterized in that: include: A fixing rod, wherein a mounting plate is fixed to one side of the bottom of the fixing rod, a hook is fixed to one side of the top of the fixing rod, and a dovetail slot is opened in the middle of the other side of the fixing rod; A decoupling member, comprising a movable sleeve, the movable sleeve being sleeved on the outer side of the middle portion of the fixed rod, and a decoupling groove being formed on one side of the top end of the movable sleeve; An adjusting piece is provided at the lower part of one side of the fixing rod and is used for adjusting the height of the unhooking piece.

2. A mold decoupling mechanism according to claim 1, characterized in that: An adjustment panel is fixed on one side of the top of the fixing rod, and a distance measuring sensor is installed on the lower surface of the adjustment panel.

3. The mold decoupling mechanism according to claim 1, characterized in that: A dovetail slider is fixed to the middle of the inner wall of the other side of the movable sleeve, and the dovetail slider is located in the dovetail sliding groove.

4. A mold decoupling mechanism according to claim 1, characterized in that: An extension block is fixed to the bottom end of one side of the movable sleeve, a sensor receiving end is inlaid on the upper surface of the extension block, the sensor receiving end is adapted to the distance measuring sensor, and a screw is fixed to the middle of the lower surface of the extension block.

5. The mold decoupling mechanism according to claim 1, characterized in that: The adjusting member includes a protrusion, which is fixed on the mounting plate. A groove is provided inside the protrusion, a guide groove is provided through the middle of the groove, and the guide groove is connected to the screw rod. A worm gear is provided inside the groove, and an annular block is fixed to the bottom of the worm gear, and the annular block is movably connected to the groove through a bearing. A screw groove is provided through the middle of the worm gear, and the screw groove is connected to the screw rod.

6. A mold decoupling mechanism according to claim 5, characterized in that: One end of the worm wheel is connected to a worm, one end of the worm is movably connected to the inner wall of the groove through a bearing, and the other end of the worm is fixed with a turntable, which is located outside the protrusion.

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