Intra-mold water gap cutting mechanism for injecting glue on parting surface

Abstract

The utility model provides an in-mold water gap cutting mechanism for feeding glue on a parting surface. The in-mold water gap cutting mechanism comprises a cutter (1), a cutter driving device (2) for driving a cutter edge of the cutter (1) to translate along the parting surface, and a power device (3) for providing power for the cutter driving device (2). The in-mold water gap cutting mechanism for rubber feeding through the parting surface is compact and simple in structure, low in part cost, small in occupied space, low in mold cost, capable of being made into a standard part and good in universality, and the parting surface is perpendicular to the power direction.

Description

Technical Field

[0001] The utility model relates to the technical field of in-mold cutting, in particular to an in-mold cutting nozzle mechanism for glue feeding on a parting surface. Background Art

[0002] In-mold cutting technology is a mold injection automation technology that uses a cutting knife to shear or squeeze out the gate before the plastic mold is opened, thereby achieving part-material separation after the plastic mold is opened.

[0003] At present, many plastic parts adopt the method of direct injection from the parting surface during the injection molding process. This injection molding method is easy to leave glue marks, which will affect the appearance of the plastic parts. On the other hand, after the plastic parts are injected, the glue marks need to be removed manually, and there is no way to complete it in one step in the molding mold. In response to the above technical problems, the existing patent proposes a solution. The patent number of the patent is ZL202220131228.4, and the name is an in-mold cutting and flat cutting mechanism. The authorization publication date is October 14, 2022. The patent discloses an in-mold cutting and flat cutting mechanism, including a front mold and a rear mold, which are combined to form a cavity; a cutter module is provided between the front mold and the rear mold, and the cutter module includes: a fixed seat; a cutter, which is used to cut off the material head, and the movement direction of the cutter is parallel to the parting surface; a guide block, which is fixed on the fixed seat, and the guide block is used to guide the movement of the cutter; a power device, which is fixed on the fixed seat, and the power device is used to drive the cutter. The existing patented in-mold cutting and flat cutting mechanism has the following disadvantages: 1. Complex structure and high parts cost; 2. The parting surface is parallel to the power direction, which occupies a large space, increases the mold space requirement, and increases the mold cost; 3. It cannot be made into a standard part and has poor versatility.

[0004] In view of this, it is necessary to provide an in-mold sprue cutting mechanism for glue feeding through a parting surface to solve the deficiencies of the prior art. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide an in-mold water gate mechanism for gluing the parting surface which has a compact and simple structure, low parts cost, a parting surface perpendicular to the power direction, small space occupation, low mold cost, and can be made into a standard part with good versatility.

[0006] In order to solve the above technical problems, the utility model provides an in-mold water gate cutting mechanism for gluing on a parting surface, which includes a cutter, a cutter driving device for driving the cutting edge of the cutter to translate along the parting surface, and a power device for providing power to the cutter driving device.

[0007] A further improvement of the utility model is that the cutter drive device includes a first slider and a first top block, the first slider is provided with a dovetail or a dovetail groove intersecting the parting surface, the first top block is provided with a dovetail groove or a dovetail intersecting the parting surface, the dovetail or dovetail groove of the first slider is slidably connected with the dovetail groove or dovetail of the first top block, the cutter is installed on the first slider, the angle at which the dovetail or dovetail groove of the first slider intersects the parting surface is equal to the angle at which the dovetail groove or dovetail of the first top block intersects the parting surface, and the cutter is installed on the first slider.

[0008] A further improvement of the utility model is that the angle at which the dovetail groove or dovetail of the first top block intersects with the parting surface is 25 degrees to 60 degrees.

[0009] A further improvement of the utility model is that the angle at which the dovetail groove or dovetail of the first top block intersects with the parting surface is 45 degrees.

[0010] A further improvement of the utility model is that the cutter drive device includes a cutter drive seat, the cutter is provided with a T-shaped hanging platform or T-shaped slot, the cutter drive seat is provided with a T-shaped slot or T-shaped hanging platform intersecting with the parting surface, the cutter head is provided with a plane parallel to the parting surface, and the T-shaped hanging platform or T-shaped slot of the cutter is slidably matched with the T-shaped slot or T-shaped hanging platform of the cutter drive seat.

[0011] A further improvement of the utility model is that the cutter drive device includes a second slider, a second top block, and a pressure block, the second slider is provided with a dovetail or a dovetail groove intersecting the parting surface, the second top block is provided with a dovetail groove or a dovetail, the dovetail or dovetail groove of the second slider is slidably connected with the dovetail groove or dovetail of the second top block, the cutter is installed on the second slider, the bottom of the pressure block is provided with a cavity and an oblique through hole connected to the cavity, the second slider and the second top block are placed in the cavity at the bottom of the pressure block, and the cutter is slidably sealed with the oblique through hole of the pressure block.

[0012] A further improvement of the utility model is that the power device is ejected by a cylinder, the cylinder is installed on the rear mold, and the cylinder is in contact connection with the first ejecting block.

[0013] A further improvement of the utility model is that the utility model also includes a reset device, and the reset device is used for resetting the cutter drive device.

[0014] A further improvement of the utility model is that the power device includes a cylinder, a push rod, and an elastic element. The cylinder is installed on the rear mold, the head of the push rod is fixedly connected to the first push block, the tail of the push rod is in contact with the cylinder, and the elastic element is sleeved on the push rod and elastically pressed between the push rod and the rear mold or the mold core.

[0015] A further improvement of the utility model is that the power device also includes an extension rod, and two ends of the extension rod are respectively connected to the oil cylinder and the push rod in abutting manner.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The product nozzle is cut off by installing the cutter parallel to the parting surface or with a certain slope movement, so as to achieve a more perfect product requirement.

[0018] 2. The cutter fixing seat and the oil cylinder ejector are matched with an inclined angle to effectively reduce the size of the parts and thus reduce the cost of use, which has better versatility.

[0019] 3. The driving direction of the cutter drive device is perpendicular to the movement direction of the cutter blade, so that the parting surface is perpendicular to the power direction. The cutter drive device and the power device are both installed in the mold opening direction (longitudinal), reducing the use area of ​​the mold parting surface direction (transverse), reducing the fixed seat, guide block, pressure block and other parts, so that a compact and simple structure, low parts cost, parting surface and power direction are perpendicular, small space is occupied, low mold cost, can be made into standard parts, and have good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a three-dimensional structure of an embodiment of the utility model;

[0021] Figure 2 yes Figure 1 Expand the three-dimensional structure diagram;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the new practical implementation method II;

[0023] Figure 4 yes Figure 3 Expand the three-dimensional structure diagram;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the embodiment of the utility model;

[0025] Figure 6 yes Figure 5 Expand the three-dimensional structure diagram;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the fourth embodiment of the utility model;

[0027] Figure 8 yes Figure 7 Expand the three-dimensional structure diagram;

[0028] Fig. 9 Is a schematic cross-sectional structure diagram of the briquette of the utility model embodiment four;

[0029] Fig.10 Is a schematic diagram of the three-dimensional structure of the fifth embodiment of the utility model;

[0030] Fig.11 yes Fig.10 Expand the three-dimensional structure diagram.

[0031] The names of the components in the figure are as follows:

[0032] 1—cutter;

[0033] 2—cutter drive device;

[0034] 21 - first slider;

[0035] 22—first top block;

[0036] 23 - cutter drive seat;

[0037] 24 - second slider;

[0038] 25—second top block;

[0039] 26 - briquetting;

[0040] 261—cavity;

[0041] 262—oblique through hole;

[0042] 3—power unit;

[0043] 31—oil cylinder;

[0044] 32—rod;

[0045] 33—elastic element;

[0046] 34—Extension rod;

[0047] 4—Reset device. DETAILED DESCRIPTION

[0048] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0049] Implementation Method 1

[0050] like Figure 1-Figure 2 As shown, an in-mold sprue cutting mechanism for glue feeding on a parting surface comprises a cutter 1, the cutter 1 is provided with a cutting edge (blade), a cutter driving device 2 for driving the cutting edge of the cutter 1 to translate along the parting surface, and a power device 3 for providing power to the cutter driving device 2. The number of the cutter 1 is 1. The cutter 1 is connected to the mold core with sliding sealing glue. The cutter driving device 2 and the power device 3 are respectively installed on the rear mold.

[0051] Specifically, Figure 1-Figure 2 As shown, the cutter drive device 2 includes a first slider 21 and a first top block 22. The rear of the first slider 21 is provided with a dovetail (or dovetail groove) intersecting the parting surface, and the head of the first top block 22 is provided with a dovetail groove (or dovetail) intersecting the parting surface. The dovetail (or dovetail groove) of the first slider 21 is slidably connected with the dovetail groove (or dovetail) of the first top block 22. The front of the first slider 21 is provided with a T-slot, and the cutter 1 is provided with a T-shaped hanging platform, which is movably installed in the T-slot.

[0052] Specifically, Figure 1-Figure 2 As shown, the angle at which the dovetail (or dovetail groove) of the first slider 21 intersects with the parting surface is equal to the angle at which the dovetail groove (or dovetail) of the first top block 22 intersects with the parting surface. The angle at which the dovetail groove (or dovetail) of the first top block 22 intersects with the parting surface is 25 to 60 degrees, specifically 45 degrees. The number of the cutter 1, the first slider 21, and the first top block 22 is 1. Slides parallel to the parting surface are provided on both sides of the first slider 21, and the slides are slidably connected to the mold core.

[0053] Specifically, Figure 1-Figure 2 As shown, the power device 3 includes a cylinder 31, a push rod 32, and an elastic element 33. The cylinder 31 is fixedly installed on the rear mold, the head of the push rod 32 is threadedly fixedly connected to the first top block 22, the tail of the push rod 32 is in contact with the cylinder 31, and the elastic element 33 is sleeved on the push rod 32 and elastically pressed between the push rod 32 and the rear mold or the mold core. The number of the cylinder 31, the push rod 32, and the elastic element 33 is 1. The elastic element 33 is a spring.

[0054] The working principle of the first embodiment is as follows: the oil cylinder 31 works by pushing the first ejector block 22 upward for a distance through the ejector rod 32, and the first ejector block 22 drives the first slider 21 to translate the cutter 1 along the parting surface for a set distance through the cooperation of the dovetail groove and the dovetail, and the cutter 1 cuts off the water outlet; the oil cylinder 31 is reset, and the ejector rod 32 retreats to the original position under the action of the elastic force of the elastic element 33, and the ejector rod 32 retreats to the original position with the first ejector block 22, and the first ejector block 22 drives the first slider 21 to translate the cutter 1 along the parting surface to retreat to the original position through the cooperation of the dovetail groove and the dovetail.

[0055] Implementation Method 2

[0056] like Figure 3-Figure 4 As shown, the second embodiment is basically the same as the first embodiment, except that the power device 3 is ejected by a cylinder 31 , the cylinder 31 is fixedly mounted on the rear mold, and the cylinder 31 is in contact with the first ejector block 22 .

[0057] The utility model further comprises a reset device 4, which is used to reset the cutter drive device 2. The reset device 4 is reset by a spring, and the number of the spring is 1. The spring is fixedly mounted on the front mold, and after the mold is closed, the spring elastically abuts against the first top block 22.

[0058] The working principle of the second embodiment is as follows: the oil cylinder 31 works to push the first ejector block 22 upward for a distance, and the first ejector block 22 drives the first slider 21 to translate the cutter 1 along the parting surface for a set distance through the cooperation of the dovetail groove and the dovetail, and the cutter 1 cuts off the water outlet; the oil cylinder 31 resets, and the first ejector block 22 returns to its original position under the action of the spring elastic force, and the first ejector block 22 drives the first slider 21 to translate the cutter 1 along the parting surface for a set distance through the cooperation of the dovetail groove and the dovetail.

[0059] Implementation Method 3

[0060] like Figure 5-Figure 6 As shown, the third embodiment is basically the same as the first embodiment, except that the power device 3 further includes an extension rod 34, and the two ends of the extension rod 34 are respectively connected with the oil cylinder 31 and the push rod 32. The oil cylinder 31 is fixedly mounted on the bottom plate of the rear mold.

[0061] The working principle of the third embodiment is as follows: the oil cylinder 31 works by pushing the first ejector block 22 upward for a distance through the extension rod 34 and the ejector rod 32, and the first ejector block 22 drives the first slider 21 to translate along the parting surface a set distance with the cutter 1 through the cooperation of the dovetail groove and the dovetail, and the cutter 1 cuts off the water outlet; the oil cylinder 31 is reset, and the ejector rod 32 retreats to the original position under the action of the elastic force of the elastic element 33, and the ejector rod 32 retreats to the original position with the extension rod 34 and the first ejector block 22, and the first ejector block 22 drives the first slider 21 to translate along the parting surface with the cutter 1 to retreat to the original position through the cooperation of the dovetail groove and the dovetail.

[0062] Implementation Method 4

[0063] like Figure 7-Figure 9 As shown, the fourth embodiment is basically the same as the first embodiment, except that the number of cutters 1 is 2. The structure and composition of the cutter drive device 2 are different, the rear part of the push rod 32 of the power device 3 that contacts the oil cylinder is lengthened, and the oil cylinder 31 of the power device 3 is fixedly installed on the bottom plate of the rear mold. The cutter 1 is provided with a plane parallel to the parting surface.

[0064] Specifically, Figure 7-Figure 9As shown, the cutter drive device 2 includes a second slider 24, a second top block 25, and a pressure block 26. The number of the second slider 24 and the pressure block 26 is 1, and the number of the cutter 1 and the second top block 25 is 2. Both sides of the head of the second slider 24 are provided with dovetails (or dovetail grooves) intersecting with the parting surface, and the rear of the second top block 25 is vertically provided with a dovetail groove (or dovetail). The dovetail (or dovetail groove) of the second slider 24 is slidably connected with the dovetail groove (or dovetail) of the second top block 25. The cutter 1 is installed on the second slider 24. The bottom of the pressure block 26 is provided with a cavity 261 and two oblique through holes 262 respectively connected to the two sides of the cavity 261. The second slider 24 and the second top block 25 are placed in the cavity 261 at the bottom of the pressure block 26, and the cutter 1 is connected with the oblique through hole 262 of the pressure block 26 by sliding sealing. The rear of the cutter 1 is vertically provided with a T-shaped hanging platform, the front of the second slider 24 is vertically provided with a T-shaped slot, and the T-shaped hanging platform is movably installed in the T-shaped slot. Hanging platforms are provided on both sides of the second top block 25, a flow channel is provided on the pressure block 26, and hanging platforms are provided on both sides of the pressure block 26. The angle at which the dovetails (or dovetail grooves) on both sides of the head of the second slider 24 intersect with the parting surface is 30 degrees to 60 degrees, preferably 45 degrees.

[0065] The working principle of the fourth embodiment is as follows: the oil cylinder 31 works to push the second ejector block 25 upward for a distance through the ejector rod 32, and the second ejector block 25 drives the two second sliders 24 to translate the planes of the two cutters 1 along the parting surface for a set distance through the cooperation of the dovetail groove and the dovetail, and the cutter 1 cuts off the water outlet; the oil cylinder 31 resets, and the ejector rod 32 retreats to the original position under the action of the elastic force of the elastic element 33, and the ejector rod 32 retreats to the original position with the second ejector block 25, and the second ejector block 25 drives the two second sliders 24 to translate the planes of the two cutters 1 along the parting surface for a set distance through the cooperation of the dovetail groove and the dovetail.

[0066] Implementation Method 5

[0067] like Figure 10-11 As shown, the fifth embodiment is basically the same as the first embodiment, except that the number of cutters 1 is 2. The structure and composition of the cutter drive device 2 are different, the rear part of the push rod 32 of the power device 3 that contacts the oil cylinder is lengthened, and the oil cylinder 31 of the power device 3 is fixedly mounted on the bottom plate of the rear mold. The cutter 1 is provided with a plane parallel to the parting surface.

[0068] Specifically, Figure 10-11As shown, the cutter drive device 2 includes a cutter drive seat 23, a T-shaped platform or T-shaped slot is vertically provided at the rear of the cutter 1, a T-shaped slot or T-shaped platform intersecting the parting surface is provided at the head of the cutter drive seat 23, a plane parallel to the parting surface is provided at the head of the cutter 1, and the T-shaped platform or T-shaped slot of the cutter 1 is slidably connected with the T-shaped slot or T-shaped platform of the cutter drive seat 23. The number of the cutter drive seat 23 is 1, and the intersection angle of the T-shaped slots or T-shaped platforms on both sides of the head of the cutter drive seat 23 with the parting surface is 30 to 60 degrees, preferably 45 degrees.

[0069] The working principle of the fifth embodiment is as follows: the oil cylinder 31 works to push the cutter drive seat 23 upward for a distance through the push rod 32, and the cutter drive seat 23 drives the planes of the two cutters 1 to translate along the parting surface for a set distance through the cooperation of the dovetail groove and the dovetail, and the cutter 1 cuts off the water outlet; the oil cylinder 31 resets, and the push rod 32 retreats to the original position under the action of the elastic force of the elastic element 33, and the push rod 32 retreats to the original position with the cutter drive seat 23, and the cutter drive seat 23 drives the planes of the two cutters 1 to translate along the parting surface and retreat to the original position through the cooperation of the dovetail groove and the dovetail.

[0070] Beneficial effects of the utility model:

[0071] 1. The product nozzle is cut off by installing the cutter parallel to the parting surface or with a certain slope movement, so as to achieve a more perfect product requirement.

[0072] 2. The cutter fixing seat and the oil cylinder ejector are matched with an inclined angle to effectively reduce the size of the parts and thus reduce the cost of use, which has better versatility.

[0073] 3. The driving direction of the cutter drive device is perpendicular to the movement direction of the cutter blade, so that the parting surface is perpendicular to the power direction. The cutter drive device and the power device are both installed in the mold opening direction (longitudinal), reducing the use area of ​​the mold parting surface direction (transverse), reducing the fixed seat, guide block, pressure block and other parts, so that a compact and simple structure, low parts cost, parting surface and power direction are perpendicular, small space is occupied, low mold cost, can be made into standard parts, and have good versatility.

[0074] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. An in-mold gate cutting mechanism for glue feeding on a parting surface, characterized in that: It comprises a cutter (1), a cutter driving device (2) for driving the cutting edge of the cutter (1) to translate along a parting surface, and a power device (3) for providing power to the cutter driving device (2); The cutter drive device (2) comprises a cutter drive seat (23), the cutter (1) is provided with a T-shaped platform or a T-shaped slot, the cutter drive seat (23) is provided with a T-shaped slot or a T-shaped platform intersecting with the parting surface, the head of the cutter (1) is provided with a plane parallel to the parting surface, and the T-shaped platform or the T-shaped slot of the cutter (1) is connected to the T-shaped slot or the T-shaped platform of the cutter drive seat (23) in a sliding fit; Alternatively, the cutter drive device (2) comprises a second slider (24), a second top block (25), and a pressure block (26); the second slider (24) is provided with a dovetail or a dovetail groove intersecting the parting surface; the second top block (25) is provided with a dovetail groove or a dovetail; the dovetail or dovetail groove of the second slider (24) is slidably connected to the dovetail groove or dovetail of the second top block (25); the cutter (1) is mounted on the second slider (24); the bottom of the pressure block (26) is provided with a cavity (261) and an oblique through hole (262) communicating with the cavity (261); the second slider (24) and the second top block (25) are placed in the cavity (261) at the bottom of the pressure block (26); and the cutter (1) is slidably connected to the oblique through hole (262) of the pressure block (26) by means of glue.

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