Double-guide-slope demolding mold structure for wide injection molding part

Abstract

The utility model discloses a double-guide inclined plane demolding mold structure for a wide injection molded part, and relates to the technical field of demolding mold structures. The double-guide-slope demolding mold structure for the wide injection molding part comprises a left side mold and a right side mold which are oppositely arranged, a double-guide-slope demolding assembly used for demolding is installed on the right side mold, and a buffering assembly is installed below the right side mold in a sliding mode and used for bearing the wide injection molding part falling off from the right side mold; the lifting assembly is installed between the buffering assembly and the right side mold and used for driving the buffering assembly to ascend and descend below the right side mold; by arranging the buffering assembly, the lifting assembly and the overturning assembly, a product demolded from the right mold can be carried by the overturning plate and then conveyed to the lower portion, and damage caused by falling of a wide injection molding part is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of demoulding mold structures, in particular to a double-guide inclined-surface demoulding mold structure for wide-width injection molded parts. Background Art

[0002] Wide-width injection molded parts refer to injection molded products with relatively large width dimensions. Demolding by using a sloped surface can make the plastic parts slide out of the mold more easily, reduce demolding resistance, thereby improving demolding efficiency and reducing the risk of damage to the plastic parts.

[0003] A demoulding structure for injection molds disclosed in the patent application with reference publication number CN208118321U comprises: a fixed frame, the upper end of which is inserted with a guide inclined column and a casting pipe; an upper template, which is located in the fixed frame, the lower end of the casting pipe is movably inserted in the upper template, a first inclined hole is opened on the upper template, and the lower end of the guide inclined column passes through the first inclined hole; an upper mold core, which is embedded in the lower end of the upper template, a second inclined hole is opened on the upper mold core, and the lower end of the guide inclined column is inserted in the second inclined hole; a lower mold, which is located in the fixed frame, the upper end of the lower mold is embedded with a lower mold core, and the upper end of the lower mold core is against the lower end of the upper mold core. Compared with the prior art, the advantage of the utility model is that the guide inclined column of the demoulding structure for injection molds provides a moving path for the upper template and the upper mold core during demoulding, the upper template and the upper mold core can move obliquely, and the product and the upper mold core can be gradually separated during the movement, avoiding strong separation in the later stage and reducing product damage.

[0004] As shown in the above-mentioned prior art, the existing injection mold demolding structure assists demolding by setting a slope demolding method to reduce product damage. After the existing mold is successfully demolded, the product is usually removed manually next to the machine, or the product falls directly from the mold. Manual removal consumes manpower, and allowing the product to fall directly can easily cause scratches on the product when it falls for wide injection molds, and scratches lead to a decrease in product yield.

[0005] Therefore, it is necessary to provide a double-guided inclined-surface demoulding mold structure for wide-width injection molded parts to solve the above-mentioned technical problems. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In order to solve the above technical problems, the utility model provides a double-guide slope demoulding mold structure for wide injection molded parts.

[0008] (II) Technical solution

[0009] To achieve the above purpose, the utility model implements a double-guided inclined-surface demoulding mold structure for wide-width injection molded parts through the following technical scheme, including a left mold and a right mold that are relatively arranged, and a double-guided inclined-surface demoulding component for demoulding is installed on the right mold;

[0010] A buffer assembly is slidably mounted below the right mold and is used to receive the wide injection molded part dropped from the right mold;

[0011] A lifting assembly is installed between the buffer assembly and the right mold, and is used to drive the buffer assembly to rise and fall below the right mold;

[0012] The buffer assembly consists of a horizontal bar fixed on the protruding end of the lifting assembly, a flip plate rotatably mounted on the bottom surface of the horizontal bar and pressed against the bottom surface of the horizontal bar, and a flip assembly installed between the flip plate and the horizontal bar.

[0013] Preferably, a sliding rod is fixed to one end of the horizontal bar close to the right mold, and the sliding rod is slidably connected to the right mold through a sliding hole.

[0014] Preferably, the lifting assembly includes a first electric push rod fixed to the outer wall of the right mold, and the protruding end of the first electric push rod is fixed to the end of the horizontal bar.

[0015] Preferably, the bottom surface of one end of the horizontal bar away from the electric push rod is rotatably connected to a rotating shaft through a bearing, one side of the flip plate is fixed to the rotating shaft, a torsion spring is sleeved on the outer side of the rotating shaft, one end of the torsion spring is fixed to the outer wall of the rotating shaft and the other end is fixed to the bottom surface of the horizontal bar.

[0016] Preferably, the flip assembly includes a gear fixed at one end of the rotating shaft, a connecting strip is fixed on the outer wall of the right mold, a rack is fixed at the lower end of the connecting strip, and the gear can be meshed and connected with the rack during the process of following the flip plate to descend.

[0017] Preferably, the double-guide bevel demolding assembly includes a second electric push rod fixed at the middle part of the upper end of the right mold, a first demolding valve stem slidably connected to the right mold through a sliding hole is fixed to the protruding end of the second electric push rod, a third electric push rod arranged obliquely is fixed to the middle part of the lower end of the right mold, a second demolding valve stem slidably connected to the right mold through a sliding hole is fixed to the protruding end of the third electric push rod, and the first demolding valve stem and the second demolding valve stem are flush with the side of the right mold close to the left mold.

[0018] (III) Beneficial effects

[0019] The utility model provides a double-guided inclined-surface demoulding mold structure for wide-width injection molded parts. Compared with the prior art, it has the following beneficial effects:

[0020] 1. The application sets a buffer component, a lifting component and a flip component, so that the product demoulded from the right mold can be received by the flip plate and transported to the bottom, preventing damage caused by the falling of wide injection molded parts. The flip plate is tilted by the flip component to pour the product out of the flip plate and onto the conveyor of the next process. Compared with the traditional method of directly demoulding the product and letting it fall downward, the impact force of the product falling is reduced, the product is effectively protected, and the product yield is improved;

[0021] 2. This application sets up a double-guided inclined demolding component so that the wide-width injection molded parts can be pushed out of the right mold by the first demolding valve stem and the second demolding valve stem after injection molding. Since the second demolding valve stem is set at an angle, the demolding resistance is reduced, which better assists the demolding work of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the position of the horizontal bar of the utility model;

[0024] Figure 3 This is a schematic diagram of the gear position of the utility model;

[0025] Figure 4 This is a schematic diagram of the flip plate structure of the utility model;

[0026] Figure 5 For this utility model Figure 4 A magnified image of point A;

[0027] Figure 6 This is a schematic diagram of the tilting state of the flip plate of the utility model;

[0028] Figure 7 This is a schematic diagram of the position of the second demoulding valve stem of the utility model.

[0029] Numbers in the figure: 1. left mold; 2. right mold; 3. horizontal bar; 4. flip plate; 5. sliding rod; 6. third electric push rod; 7. electric push rod; 8. rotating shaft; 9. torsion spring; 10. gear; 11. connecting bar; 12. rack; 13. second electric push rod; 14. first demoulding valve stem; 15. second demoulding valve stem. DETAILED DESCRIPTION

[0030] 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.

[0031] The utility model provides two technical solutions:

[0032] Figures 1 to 6 The first embodiment is shown: a double-guided inclined-surface demoulding mold structure for wide-width injection molded parts, comprising a left mold 1 and a right mold 2 arranged opposite to each other, a double-guided inclined-surface demoulding assembly for demoulding is installed on the right mold 2, and also comprises a buffer assembly and a lifting assembly, the buffer assembly is slidably installed under the right mold 2, and is used to receive the wide-width injection molded parts dropped from the right mold 2, and the lifting assembly is installed between the buffer assembly and the right mold 2, and is used to drive the buffer assembly to rise and fall under the right mold 2;

[0033] The buffer assembly consists of a horizontal bar 3 fixed at the protruding end of the lifting assembly, a flip plate 4 rotatably installed on the bottom surface of the horizontal bar 3 and pressed against the bottom surface of the horizontal bar 3, and a flip assembly installed between the flip plate 4 and the horizontal bar 3. A sliding rod 5 is fixed to the end of the horizontal bar 3 close to the right mold 2. The sliding rod 5 is slidably connected to the right mold 2 through a sliding hole, and the sliding rod 5 realizes the sliding connection between the horizontal bar 3 and the right mold 2.

[0034] By setting a flip plate 4 that can be lifted and flipped under the right mold 2, the product falls on the flip plate 4 during demoulding, and then the lifting component drives the flip plate 4 to descend. After it falls into place, the flip component drives the flip plate 4 to be inclined, and then the product slides from the flip plate 4 to the conveying device for conveying, thereby preventing the product from falling directly on the conveying device.

[0035] The lifting assembly includes a first electric push rod 7 fixed on the outer wall of the right mold 2. The extended end of the first electric push rod 7 is fixed to the end of the horizontal bar 3. The lifting and lowering of the horizontal plate and the flip plate 4 can be driven by extending or retracting the first electric push rod 7.

[0036] The bottom surface of one end of the horizontal bar 3 away from the electric push rod 7 is rotatably connected to the rotating shaft 8 through a bearing. One side of the flip plate 4 is fixed to the rotating shaft 8. A torsion spring 9 is sleeved on the outer side of the rotating shaft 8. One end of the torsion spring 9 is fixed to the outer wall of the rotating shaft 8 and the other end is fixed to the bottom surface of the horizontal bar 3. The torsion spring 9 enables the flip plate 4 to always be flipped and pressed against the bottom surface of the horizontal plate. It should be emphasized that the resilience of the torsion spring 9 is large enough, the demoulded product is light, and falling on the flip plate 4 cannot cause the flip plate 4 to flip. The flip plate 4 is stable and remains horizontal.

[0037] The turning assembly includes a gear 10 fixed at one end of the rotating shaft 8, a connecting strip 11 is fixed on the outer wall of the right mold 2, and a rack 12 is fixed at the lower end of the connecting strip 11. The gear 10 can be meshed and connected with the rack 12 during the process of following the turning plate 4 to descend. When the first electric push rod 7 is extended, the transverse plate drives the turning plate 4 to descend. Until the turning plate 4 descends to a certain position, the gear 10 is meshed with the rack 12, and then continues to descend and is driven by the toggle of the rack 12 to rotate the rotating shaft 8 to overcome the elastic force of the torsion spring 9, so that the turning plate 4 is turned and maintained in an inclined state, and at this time, the lower edge of the turning plate 4 is close to the top surface of the conveying device. The conveying device is not shown in the figure. This is the prior art and will not be repeated again. After the turning plate 4 is tilted, the product slides along its inner wall onto the conveying device, and then the first electric push rod 7 is retracted, so that the turning plate 4 is turned and reset to be horizontal, and then remains horizontal and follows the horizontal plate to rise and reset. Then the right mold 2 and the left mold 1 continue to close the mold for injection molding.

[0038] Figure 7 A second embodiment is shown, and its main difference from the first embodiment is that a double-guided inclined-surface demoulding assembly comprises a second electric push rod 13 fixed at the middle of the upper end of the right mold 2, a first demoulding valve stem 14 slidably connected to the right mold 2 through a sliding hole is fixed to the protruding end of the second electric push rod 13, a third electric push rod 6 arranged obliquely is fixed to the middle of the lower end of the right mold 2, a second demoulding valve stem 15 slidably connected to the right mold 2 through a sliding hole is fixed to the protruding end of the third electric push rod 6, a first demoulding valve stem 14 and a second demoulding valve stem 15 close to the left mold 1 are both flush with a side of the right mold 2 close to the left mold 1, and when demoulding is performed after the molds are separated, the second electric push rod 13 and the third electric push rod 6 are driven to be pushed out together, thereby pushing the first demoulding valve stem 14 and the second demoulding valve stem 15 to slide and push the product, so that the product is separated from the right mold 2, demoulded and falls off.

[0039] Working principle: When in use, the left mold 1 and the right mold 2 are driven to open and close to realize injection molding. After the left mold 1 is separated from the right mold 2, the demoulding work is realized by extending the second electric push rod 13 and the third electric push rod 6, and then the product falls onto the flip plate 4. The middle part of the top surface of the flip plate 4 is concave, and the upper edge of the inner wall of the concave is inclined. Then the first electric push rod 7 is extended to make the flip plate 4 descend. After the flip plate 4 falls into place, the gear 10 is driven and rotated by the rack 12 to make the flip plate 4 flip and tilt. The product slides along the inner wall of the concave to the conveying device, and then the first electric push rod 7 is retracted to make the flip plate 4 return to a horizontal state and rise and reset, and then the injection molding work is continued.

[0040] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-guided inclined-surface demoulding mold structure for wide-width injection molded parts, comprising a left mold (1) and a right mold (2) arranged opposite to each other, wherein a double-guided inclined-surface demoulding component for demoulding is installed on the right mold (2), and is characterized in that: A buffer component is slidably mounted below the right mold (2) and is used to receive the wide injection molded part that falls from the right mold (2); A lifting assembly, installed between the buffer assembly and the right mold (2), and used to drive the buffer assembly to rise and fall below the right mold (2); The buffer assembly comprises a horizontal bar (3) fixed to the protruding end of the lifting assembly, a flip plate (4) rotatably mounted on the bottom surface of the horizontal bar (3) and pressed against the bottom surface of the horizontal bar (3), and a flip assembly mounted between the flip plate (4) and the horizontal bar (3).

2. The double-guide slope demoulding mold structure for wide-width injection molded parts according to claim 1 is characterized in that: A sliding rod (5) is fixed to one end of the horizontal bar (3) close to the right mold (2), and the sliding rod (5) is slidably connected to the right mold (2) through a sliding hole.

3. The double-guide slope demoulding mold structure for wide-width injection molded parts according to claim 2 is characterized in that: The lifting assembly comprises a first electric push rod (7) fixed to the outer wall of the right mold (2), and the protruding end of the first electric push rod (7) is fixed to the end of the horizontal bar (3).

4. The double-guide slope demoulding mold structure for wide-width injection molded parts according to claim 3 is characterized in that: The bottom surface of one end of the horizontal bar (3) away from the electric push rod (7) is rotatably connected to a rotating shaft (8) via a bearing, one side of the flip plate (4) is fixed to the rotating shaft (8), and a torsion spring (9) is sleeved on the outer side of the rotating shaft (8), one end of the torsion spring (9) is fixed to the outer wall of the rotating shaft (8) and the other end is fixed to the bottom surface of the horizontal bar (3).

5. The double-guide slope demoulding mold structure for wide-width injection molded parts according to claim 4 is characterized in that: The flip assembly comprises a gear (10) fixed to one end of the rotating shaft (8), a connecting bar (11) is fixed to the outer wall of the right mold (2), a rack (12) is fixed to the lower end of the connecting bar (11), and the gear (10) can be meshed and connected with the rack (12) during the process of following the downward movement of the flip plate (4).

6. The double-guide slope demoulding mold structure for wide injection molded parts according to claim 5, characterized in that: The double-guide bevel demoulding assembly comprises a second electric push rod (13) fixed to the middle of the upper end of the right mold (2); a first demoulding valve stem (14) slidably connected to the right mold (2) through a sliding hole is fixed to the protruding end of the second electric push rod (13); a third electric push rod (6) arranged in an inclined manner is fixed to the middle of the lower end of the right mold (2); a second demoulding valve stem (15) slidably connected to the right mold (2) through a sliding hole is fixed to the protruding end of the third electric push rod (6); and a side of the first demoulding valve stem (14) and the second demoulding valve stem (15) close to the left mold (1) are both flush with a side of the right mold (2) close to the left mold (1).

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