Injection mold with linked slider

Abstract

The present invention discloses an injection mold with a linkage slider, comprising: a front mold, comprising a front template, a main slider is slidably connected to the front template, a driven slider is slidably connected to the main slider, and the straight line where the sliding direction of the driven slider intersects with the straight line where the sliding direction of the main slider is; a front mold, comprising a front template, a shovel base on which a pushing mechanism cooperates with the driven slider is provided on the front template, an inclined guide structure along the sliding direction of the driven slider and inclined toward the outside of the rear template is provided on the shovel base, a connecting portion that cooperates with the inclined guide structure is provided on the driven slider, and the pushing mechanism is connected to the first slider. The present invention can realize the mold opening and resetting process of the mold only by using the movement of the front template, effectively avoiding the risk of the slider colliding with the product, effectively improving the number of clamping lines left by the slider on the appearance surface of the product, improving the appearance quality of the product, and meeting the appearance requirements of customers.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to an injection mold with a linkage slider. Background Art

[0002] Two-color injection molds have gradually become the mainstream production tools for two-color plastic products in the injection mold industry. The application of two-color injection molds is becoming more and more extensive. With the production design of two-color injection molds, the application technology of two-color injection molds has also been greatly improved. Since the injection molding machine has only one mold opening direction, the injection mold also has only one mold opening direction. However, many plastic products have through holes, grooves or bosses on the side walls, so the mold needs to have multiple core pulling directions. These side core pulling, that is, the slider mechanism, must be completed before the plastic parts are demolded.

[0003] The working premise of the two-color mold is to ensure that the rear mold of the first beer is the same as the rear mold of the second beer, while the front molds of the two beers can be different, and the sliders of the front mold part can also be different. For two-color products with special structures, multiple sliders are required to assist demoulding. However, the ordinary multi-slide independent sliding device will leave more clamping lines on the appearance of the product. For example, if the product used for analysis this time uses an ordinary slider mechanism, clamping lines will be left on the side and bottom of the product. The products produced in this way are neither beautiful nor meet the customer's requirements for product appearance. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an injection mold with a linkage slider, which can ensure smooth opening and closing of the mold and avoid the risk of the slider hitting the product.

[0005] According to the first aspect of the present invention, an injection mold with a linked slider comprises: a front mold, comprising a front template, a main slider is slidably connected to the front template, at least one driven slider is slidably connected to the main slider, and the straight line where the sliding direction of the driven slider intersects with the straight line where the sliding direction of the main slider is located; a front mold, comprising a front template, a pushing mechanism is provided on the front template with at least one shovel base that cooperates with the driven slider, the shovel base is provided with an inclined guide structure along the sliding direction of the driven slider and inclined toward the outside of the rear template, the driven slider is provided with a connecting portion that cooperates with the inclined guide structure, the pushing mechanism is connected to the first slider and when the front template is opened upward, the pushing mechanism can push the main slider to move toward the outside of the rear template.

[0006] The injection mold with a linkage slider according to the embodiment of the present invention has at least the following beneficial effects:

[0007] Under the premise of ensuring the smooth opening and closing of the injection mold, the movement of the slider is used to drive the movement of the small slider, so as to realize the one-time linkage demoulding process in the mold opening process, realize the innovation in action, and ensure the safety between the slider and the product. The product can be demoulded safely and reset safely after demoulding. The mold opening and reset process can be realized only by the movement of the front template, which effectively avoids the risk of collision between the slider and the product, improves the number of clamping lines left by the slider on the appearance surface of the product, improves the appearance quality of the product, and meets the appearance requirements of customers.

[0008] According to some embodiments of the present invention, the inclined guide structure is obliquely arranged at the bottom of the front template, and is an inclined guide portion inclined away from the product along the movement direction of the driven slider. The driven slider is provided with an open inclined groove matching the inclined guide portion, and the groove surface of the open inclined groove is parallel to the movement direction of the main slider. It is one of the preferred structures of the inclined guide structure, which pushes the driven slider to open outward during the movement along the main slider.

[0009] According to some embodiments of the present invention, the driven slider is provided with several, including a first slider and a second slider, the front template is provided with a first shovel base and a second shovel base cooperating with the first slider and the second slider, respectively, the rear template is provided with a first beer cavity located between the first slider and the second slider, the opening direction of the opening inclined groove is inclined back to the first beer cavity, and the first slider and the second slider are reasonably arranged to realize the slider opening process.

[0010] According to some embodiments of the present invention, four driven sliders are provided, including a third slider and a fourth slider, and a second beer cavity is further provided on the rear template. The second beer cavity and the first beer cavity are arranged opposite to each other on the rear template, and the third slider and the fourth slider are respectively arranged on both sides of the second beer cavity. A third shovel base and a fourth shovel base cooperating with the third slider and the fourth slider are provided on the front template, and the opening directions of the opening inclined grooves of the third shovel base and the fourth shovel base are inclined away from the second beer cavity. Two consistent first beer cavities and second beer cavities are designed to be suitable for the injection molding process of the two-color injection mold.

[0011] According to some embodiments of the present invention, the pushing mechanism includes an inclined rod obliquely arranged along the sliding direction of the main slider and a tensioning spring sleeved on the inclined rod, the inclined rod is fixedly connected to the bottom of the front template and the front template is provided with a accommodating groove for accommodating the upper end of the tensioning spring, the rear template is provided with a sliding seat fixedly connected to the main slider, and the sliding seat is provided with a pushing surface abutting against the lower end of the tensioning spring.

[0012] According to some embodiments of the present invention, the inclined rod is inserted into the sliding seat, and the pushing surface is an inclined surface adapted to the bottom of the tensioning spring.

[0013] According to some embodiments of the present invention, the diagonal rod is a triple screw.

[0014] According to some embodiments of the present invention, the main slider is provided with a guide groove perpendicular to the movement direction of the main slider, and the driven slider is installed on the guide groove and can move along the guide groove.

[0015] According to some embodiments of the present invention, the inclination angle of the open inclined slot is greater than the inclination angle of the inclined rod.

[0016] According to some embodiments of the present invention, the main slider is further provided with a limit block arranged on the relative motion path of the driven slider and the main slider, and a travel groove is provided at the bottom of the driven slider, and the limit block is arranged in the travel groove.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 A schematic structural diagram of a rear mold according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the embodiment of the present invention when the mold is opened;

[0021] Figure 3 for Figure 1 The structural schematic diagram of the main slider shown;

[0022] Figure 4 for Figure 2 The structural schematic diagram of the row seat shown;

[0023] Figure 5 for Figure 1 Schematic diagram of the separation structure of the shovel base and the driven slider.

[0024] Reference numerals:

[0025] The rear template 100, the first beer cavity 110, the second beer cavity 120, the rear mold core 130, the front template 200, the main slider 300, the guide groove 310, the pressure block 320, the limit block 330, the driven slider 400, the opening inclined groove 410, the travel groove 420, the shovel base 500, the inclined guide part 510, the sliding seat 600, the inclined rod 710, and the tightening spring 720. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] Reference Figures 1 to 5 , the following describes an injection mold with a linkage slider according to an embodiment of the invention.

[0031] like Figures 1 to 5 As shown, an injection mold with a linkage slider includes a front mold and a rear mold, wherein the front mold includes a front mold plate 200 and the rear mold includes a rear mold plate 100.

[0032] A main slider 300 is slidably connected to the rear template 100, and the rear template 100 is a fixed template. The main slider 300 and the motion module are arranged on the rear mold. The movement direction of the main slider 300 intersects with or is even perpendicular to the mold closing direction of the front mold. At least one driven slider 400 is slidably connected to the main slider 300. The driven slider 400 can slide relatively on the main slider 300. The straight line where the sliding direction of the driven slider 400 is located intersects with the straight line where the sliding direction of the main slider 300 is located, that is, the sliding direction of the main slider 300 is different from the sliding direction of the driven slider 400.

[0033] The front template 200 is provided with a pushing mechanism and at least one shovel base 500 cooperating with the driven slider 400. The shovel base 500 is provided with an inclined guide structure along the sliding direction of the driven slider 400 and inclined toward the outside of the rear template 100. The driven slider 400 is provided with a connecting part cooperating with the inclined guide structure. When the front mold is opened and closed, the shovel base 500 is pushed outward to open or reset by the inclined guide structure. The pushing mechanism is connected to the main slider 300, and is a linkage mechanism between the front template 200 and the main slider 300. When the front template 200 opens the mold upward, the pushing structure pushes the main slider 300 to move toward the outside of the rear module, that is, the main slider 300 opens outward along its sliding direction to perform the demolding process. The pushing mechanism converts the opening and closing movement of the front template 200 into an opening or resetting process of the main slider 300. During the sliding process, the main slider 300 drives the driven slider 400 to move along the sliding direction of the main slider 300. During the movement, due to the common movement of the shovel base 500 with the front template 200, the driven slider 400 is pushed outward to open and detach from the product during the driving process of the main slider 300 through the inclined guide structure, and the common demolding process is realized by utilizing the linkage process between the sliders.

[0034] The above structure eliminates the core pulling structure. Through the linkage relationship between the multiple sliders, the demoulding process is realized only through the mold opening process of the front template 200, which solves the problem of wire clamping that is easily generated during the core pulling process, greatly simplifies the demoulding process, and is more convenient than the ordinary multi-slider independent motion mechanism. The produced products are beautiful and wire clamping is reduced.

[0035] In some embodiments of the present invention, the inclined guide structure is an inclined guide portion 510 obliquely arranged at the bottom of the front template 200, and the inclined direction of the inclined guide portion 510 is along the movement direction of the driven slider 400, that is, the outward opening direction relative to the main slider 300. The inclined guide portion 510 is inclined away from the product, and the driven slider 400 is provided with an open inclined groove 410 that matches the inclined guide portion 510. The open inclined groove 410 is a connecting portion connected to the inclined guide structure. When the shovel base 500 moves along the mold opening direction driven by the front template 200, the inclined guide portion 510 presses against the groove surface of the open inclined groove 410 and gradually separates from the opening. The inclined groove 410 pushes the driven slider 400 to move outward relative to the active slider, and the inclined surface of the open inclined groove 410 is parallel to the movement direction of the main slider 300, so that the open inclined groove 410 does not affect the movement of the driven slider 400 along the driven slider 400 with the main slider 300, and the driven slider 400 can slide along with the main slider 300. When the inclined guide portion 510 does not separate from the open inclined groove 410, the inclined guide portion 510 is equivalent to a guide slide in the sliding direction of the main slider 300, and the driven slider 400 gradually opens outward while sliding along with the main slider 300. In addition, the open inclined groove 410 can also be set on the shovel base 500, and the inclined guide portion 510 is set on the driven slider 400, which can also achieve the above-mentioned technical effects. If other inclined guide structures are used, the function of the driven slider 400 moving along with the main slider 300 and gradually opening outward can be achieved, which is also within the protection scope of the present invention.

[0036] In some embodiments of the present invention, a plurality of driven sliders 400 are provided, including a first slider and a second slider. The front template 200 is respectively provided with a first shovel base and a second shovel base cooperating with the first slider and the second slider. The first slider and the second slider are driven sliders 400 both arranged on the main slider 300. The first shovel base and the second shovel base are used to move and open the first slider and the second slider during the mold opening process. The rear template 100 is provided with a first beer cavity 110 located between the first slider and the second slider. The first slider and the second slider are used to cooperate with the first beer cavity 110 to form a through hole, a groove, a barb or a boss. The opening inclined grooves 410 of the first slider and the second slider are inclined away from the first beer cavity 110, so that the first slider and the second slider are opened when the mold is opened.

[0037] In some embodiments of the present invention, four driven sliders 400 are provided, which include a third slider and a fourth slider in addition to the first slider and the second slider. A second beer cavity 120 is also provided on the rear template 100. The first beer cavity 110 and the second beer cavity 120 are arranged opposite to each other and have the same structure. The third slider and the fourth slider are respectively arranged on both sides of the second beer cavity 120. The front template 200 is provided with a third shovel base 500 and a fourth shovel base 500 that cooperate with the third slider and the fourth slider. The opening mode of the opening inclined groove 410 of the third shovel base 500 and the fourth shovel base 500 is inclined back to the second beer cavity 120. The third slider, the fourth slider, and the second beer cavity 120 are symmetrically arranged with the first slider, the third slider, and the first beer cavity 110. It is a structural design of a two-color injection mold, which is one of the embodiments adapted to the product, so that the present invention is applied to the two-color injection mold. It should be noted that in the two-color mold, since the injection molding machine has only one mold opening direction, the injection mold also has only one mold opening direction. The working principle of the two-color mold is to divide the front mold into two parts, one of which has a rubber cavity corresponding to the shape of the first beer product of the two-color product, and the other cavity corresponds to the shape of the second beer rubber. The rear mold of the two-color injection mold is two cavities with 180° center symmetry. When the two-color mold is working, the rubber of the first beer is first injected into the cavity of the first beer to form the first beer product. The product formed at this time is a semi-finished product, and then the mold is opened, and the product does not need to be ejected and glued to the rear mold part of the mold. Then the mold uses the rotation provided by the injection molding machine to rotate the rear mold 180° to drive the product to rotate 180°. The mold is closed, and the semi-finished plastic product is matched with the second beer product cavity on the front mold. The mold injects the plastic material of the second beer product to form a two-color product. Finally, the complete two-color product is ejected, which is the two-color injection molding process. In addition, the present invention can also be applied to other injection molds, and the technical effects of the present invention can also be achieved.

[0038] Reference Figure 1 and Figure 4In some embodiments of the present invention, the pushing mechanism includes an inclined rod 710 obliquely arranged along the sliding direction of the main slider 300 and a tensioning spring 720 sleeved on the inclined rod 710, the inclined rod 710 is fixedly connected to the bottom of the front template 200, the front template 200 is provided with a receiving groove for accommodating the upper end of the tensioning spring 720, the receiving groove enables the tensioning spring 720 to be retracted to between the front mold and the rear mold during the mold closing process, the rear template 100 is provided with a sliding seat 600 fixedly connected to the main slider 300, the main slider 300 can be fixedly connected to the sliding seat 600 by screw connection, the sliding seat 600 is provided with a pushing surface abutting against the lower end of the top spring, the sliding seat 600 is an indirect connection structure between the pushing mechanism and the main slider 300, and the pushing process of the main slider 300 is realized through the sliding seat 600. The downward tilting direction of the inclined rod 710 is toward the demoulding direction of the sliding direction of the main slider 300, so that when the front mold is opened, the tension spring 720 acts as a driving force to push the slider seat 600 to drive the main slider 300 to move, so that the front mold plate 200 and the main slider 300 are linked to each other. In addition, a pushing surface can be directly set on the main slider 300, and the tension spring 720 can also make the main slider 300 move by directly pushing the main slider 300.

[0039] Specifically, the inclined rod 710 is installed on the slider seat 600, and serves as a limiting guide rod of the slider seat 600. When moving along the mold opening movement direction, it drives the slider seat 600 to perform a demolding process relative to the rear template 100. The structure is simple and compact, and constitutes a mold opening linkage structure to make the main slider 300 demold in a specific direction. The pushing surface is an inclined surface adapted to the bottom of the tightening spring 720, which increases the contact area between the tightening spring 720 and the slider seat 600, enhances the pushing effect, and reduces contact wear.

[0040] In some embodiments of the present invention, the inclined rod 710 is a three-dozen screws, which is one of the preferred structures of the inclined rod 710. The three-dozen screws can be fixedly connected to the front template 200 by threads. In addition, the inclined rod 710 can also be other shaft-type or rod-type structures on the market, which can also realize the pushing process.

[0041] In some embodiments of the present invention, a guide groove 310 perpendicular to the movement direction of the main slider 300 is provided on the main slider 300, and the driven slider 400 is installed on the guide groove 310 and can move along the guide groove 310. The relative sliding direction of the driven slider 400 on the main slider 300 is perpendicular to the sliding direction of the main slider 300, so that the driven slider 400 is easier to detach from the product and has a better sliding process, making it easier to open.

[0042] Specifically, the inclination angle of the open inclined groove 410 is greater than the inclination angle of the inclined rod 710, and the outward movement distance of the driven slider 400 will be greater than the leftward movement distance of the main slider 300, thereby preventing the driven slider 400 from directly dragging to the right and touching the product during the sliding of the main slider 300.

[0043] In some embodiments of the present invention, the main slider 300 is further provided with a limit block 330 arranged on the relative path between the driven slider 400 and the main slider 300, and a travel groove 420 is provided at the bottom of the driven slide groove. The limit block 330 is arranged in the travel groove 420. The travel groove 420 limits the outward demolding distance of the driven slider 400 to prevent the driven slider 400 from separating from the rear template 100.

[0044] In some embodiments of the present invention, a pressure block 320 is further provided on the main slider 300 , and the pressure block 320 is used to press the driven slider 400 to play a limiting role and prevent the driven slider 400 from falling off the rear template 100 .

[0045] In specific implementation, when opening the mold, under the action of the injection molding machine, the front mold moves backward, the front mold plate 200 gradually opens, and the top spring gradually generates elastic force to act on the slider seat 600. The slider seat 600 drives the main slider 300 to move along the demoulding direction under the guidance of the inclined rod 710, and the driven slider 400 moves along the movement direction of the main slider 300 under the action of the pressure block 320 and the guide slide groove. At the same time, during the mold opening process, the shovel base 500 uses the inclined guide structure to push the driven slider 400 to open along the guide slide groove until the limit block 330 blocks the movement, thereby realizing the mold opening process. Similarly, when closing the mold, the front mold gradually closes with the rear mold, and the main slider 300 and the driven slider 400 are driven by the pushing mechanism to close the mold. In this embodiment, a rear mold core 130 is provided on the rear mold plate 100, and the rear mold core 130 cooperates with the first beer cavity 110 and the second beer cavity 120120 to injection mold the product.

[0046] The main slider 300 and the driven slider 400 move simultaneously with the front template 200, and a suitable linkage mechanism is designed by controlling the angle and stroke of the shovel base 500 and the inclined rod 710.

[0047] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An injection mold with a linkage slider, characterized in that: include: A rear mold, comprising a rear mold plate (100), a main slider (300) being slidably connected to the rear mold plate (100), at least one driven slider (400) being slidably connected to the main slider (300), and a straight line on which the sliding direction of the driven slider (400) lies intersecting with a straight line on which the sliding direction of the main slider (300) lies; A front mold, comprising a front mold plate (200), the front mold plate (200) being provided with a pushing mechanism and at least one shovel base (500) cooperating with the driven slider (400), the shovel base (500) being provided with an inclined guide structure along the sliding direction of the driven slider (400) and inclined toward the outside of the rear mold plate (100), the driven slider (400) being provided with a connecting portion cooperating with the inclined guide structure, the pushing mechanism being connected to the main slider (300) and being able to push the main slider (300) to move toward the outside of the rear mold plate (100) when the front mold plate (200) is opened upward; The oblique guide structure is obliquely arranged at the bottom of the front template (200), and is an oblique guide portion (510) inclined away from the product along the moving direction of the driven slider (400); the driven slider (400) is provided with an open oblique groove (410) that matches the oblique guide portion (510); the inclined surface of the open oblique groove (410) is parallel to the moving direction of the main slider (300); The pushing mechanism comprises an inclined rod (710) arranged obliquely along the sliding direction of the main sliding block (300) and a tensioning spring (720) sleeved on the inclined rod (710), the inclined rod (710) being fixedly connected to the bottom of the front template (200), and the front template (200) being provided with a receiving groove for receiving the upper end of the tensioning spring (720), the rear template (100) being provided with a sliding seat (600) fixedly connected to the main sliding block (300), and the sliding seat (600) being provided with a pushing surface abutting against the lower end of the tensioning spring (720); The inclined rod (710) is inserted into the sliding seat (600), and the pushing surface is an inclined surface adapted to the bottom of the tensioning spring (720); The main slider (300) is provided with a guide slide groove (310) perpendicular to the movement direction of the main slider (300), and the driven slider (400) is mounted on the guide slide groove (310) and is capable of moving along the guide slide groove (310); The inclination angle of the open inclined groove (410) is greater than the inclination angle of the inclined rod (710).

2. The injection mold with a linkage slider according to claim 1, characterized in that: The driven sliders (400) are provided with a plurality of sliders, including a first slider and a second slider. The front template (200) is provided with a first shovel base and a second shovel base respectively matched with the first slider and the second slider. The rear template (100) is provided with a first beer cavity (110) located between the first slider and the second slider. The opening direction of the opening inclined groove (410) is inclined away from the first beer cavity (110).

3. The injection mold with a linkage slider according to claim 2, characterized in that: The driven sliders (400) are provided with four, including a third slider and a fourth slider. The rear template (100) is also provided with a second beer cavity (120). The second beer cavity (120) and the first beer cavity (110) are arranged opposite to each other on the rear template (100). The third slider and the fourth slider are respectively arranged opposite to each other on both sides of the second beer cavity (120). The front template (200) is provided with a third shovel base and a fourth shovel base that cooperate with the third slider and the fourth slider. The opening directions of the opening inclined grooves (410) of the third shovel base and the fourth shovel base are inclined away from the second beer cavity (120).

4. The injection mold with a linkage slider according to claim 1, characterized in that: The diagonal rod (710) is a triple screw.

5. The injection mold with a linkage slider according to claim 1, characterized in that: The main slider (300) is also provided with a limit block (330) arranged on the relative motion path of the driven slider (400) and the main slider (300); a travel groove (420) is provided at the bottom of the driven slider (400); and the limit block (330) is arranged in the travel groove (420).

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