Inclined jacking glue feeding device

Abstract

The embodiment of the utility model discloses a pitched roof glue feeding device which comprises a bottom plate, a front mold and a rear mold, the front mold and the rear mold are arranged on the bottom plate in the vertical direction, and when the front mold and the rear mold are attached, a forming cavity used for injecting glue to form a product is formed in the attaching side; the injection mold further comprises a pitched roof glue injection mechanism, the glue outlet end of the pitched roof glue injection mechanism is communicated with the forming cavity, and a glue injection runner of the pitched roof glue injection mechanism is provided with at least one time of bending. According to the inclined ejection glue feeding device, the speed and impact force of melt entering the forming cavity are reduced through the bending design of the glue injection runner, the defect that impact lines are generated due to high-speed impact is overcome, the influence of glue feeding pressure on a product is effectively reduced, and the defects of shrinkage deformation, glue powder dragging and the like are reduced; and the formation of punched lines at the pouring gate position is reduced, and the appearance quality of a product is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an inclined top glue feeding device. Background Art

[0002] With the rapid development of modern materials and manufacturing technology, the market has increasingly stringent requirements on the surface quality of injection molded products. In the field of high-end injection molding, products must not only have excellent performance parameters, but their appearance quality has become an important indicator to measure product competitiveness.

[0003] Traditionally, the ejector injection method has been widely used in the injection molding process due to its flexible selection of gate location and its ability to separate from the product. However, as the market continues to increase its requirements for product appearance quality, the limitations of the ejector injection method have gradually become apparent. Specifically, the ejector injection method is prone to shrinkage, deformation, and glue powder defects during the injection molding process due to the high injection pressure, and obvious punching marks are formed at the gate position, which seriously damages the product's appearance quality and assembly performance. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide an inclined ejector glue feeding device to solve the problems that the existing latent ejector glue feeding method, due to the large glue feeding pressure, is prone to shrinkage deformation, dragging glue powder and other defects in the product during the injection molding process, and obvious punching marks are formed at the gate position, which seriously damages the appearance quality and assembly performance of the product.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An embodiment of the utility model provides a slanted glue feeding device, which includes: a base plate, and a front mold and a rear mold arranged on the base plate along the vertical direction, when the front mold is bonded with the rear mold, a molding cavity for glue injection molding products is formed on the bonding side; it also includes a slanted glue injection mechanism, the glue outlet end of the slanted glue injection mechanism is connected to the molding cavity, and the glue injection flow channel of the slanted glue injection mechanism has at least one bend.

[0007] As a preferred technical solution of the utility model, an ejector panel and an ejector bottom plate are provided between the bottom plate and the rear mold, and the ejector panel and the ejector bottom plate are movably arranged in the vertical direction; the lower end of the inclined ejector glue injection mechanism is connected to the ejector bottom plate.

[0008] As a preferred technical solution of the utility model, the inclined top glue injection mechanism includes an inclined top assembly and a glue injection assembly, one end of the inclined top assembly is connected to the ejector pin base plate, and the other end is obliquely penetrated through the rear mold, and a first flow channel connected to the molding cavity is opened on the other end of the inclined top assembly; one end of the glue injection assembly is used to receive the melt, and the other end of the glue injection assembly penetrates the front mold, and a second flow channel is opened between the two ends of the glue injection assembly; the second flow channel is connected to the first flow channel.

[0009] As a preferred technical solution of the utility model, the first flow channel is opened on the outer surface of the inclined top component in the horizontal direction, the second flow channel is located on the side of the inclined top component where the first flow channel is opened, and a fluid hole is opened on the rear mold, and the second flow channel and the first flow channel are connected through the fluid hole.

[0010] As a preferred technical solution of the present utility model, the first flow channel includes a first horizontal flow channel and a first vertical flow channel, one end of the first horizontal flow channel is connected to the fluid hole, the other end of the first horizontal flow channel is connected to the lower end of the first vertical flow channel, and the upper end of the first vertical flow channel is connected to the molding cavity.

[0011] As a preferred technical solution of the present invention, the width of the first vertical runner gradually decreases toward the direction approaching the forming cavity.

[0012] As a preferred technical solution of the present utility model, the first horizontal flow channel is opened along the horizontal direction, and the first vertical flow channel and the second flow channel are opened along the vertical direction.

[0013] As a preferred technical solution of the utility model, the inclined ejector assembly includes an inclined ejector seat and an inclined ejector rod, the inclined ejector seat is installed on the ejector base plate, the rear mold is provided with an air avoidance hole, the inclined ejector rod is passed through the air avoidance hole and one end is rotatably connected to the inclined ejector seat, and the other end extends toward the molding cavity to form a flow channel portion, the first flow channel is opened on one side of the flow channel portion in the horizontal direction, and the inclined direction of the inclined ejector rod is away from the second flow channel.

[0014] As a preferred technical solution of the utility model, a guide block is installed in the air avoidance hole, a guide hole is opened on the guide block, and the inclined push rod is also passed through the guide hole; the inclinations of the air avoidance hole and the guide hole are the same as those of the inclined push rod, the radial width of the air avoidance hole is larger than the radial width of the inclined push rod, and the radial width of the guide hole is the same as the radial width of the inclined push rod.

[0015] As a preferred technical solution of the utility model, it also includes a driving mechanism, and the driving mechanism is used to drive the ejector base plate to approach or move away from the rear mold along the vertical direction.

[0016] Compared with the prior art, the inclined top glue feeding device of the utility model slows down the speed and impact force of the melt entering the molding cavity through the bending design of the glue injection flow channel, avoids the defects of punching marks caused by high-speed impact, effectively reduces the influence of the glue feeding pressure on the product, reduces the occurrence of defects such as shrinkage deformation and glue powder dragging, and reduces the formation of punching marks at the gate position, thereby significantly improving the appearance quality of the product.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a front view of an assembly of an inclined top glue feeding device of the utility model;

[0020] Figure 2 This is a front view of the internal structure of an inclined top glue feeding device of the utility model;

[0021] Figure 3 This is a three-dimensional view of the internal structure of an inclined top glue feeding device of the utility model;

[0022] Figure 4 This is a schematic diagram of the rear mold and product structure of an inclined top glue feeding device of the utility model;

[0023] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at point A;

[0024] Figure 6 It is a schematic diagram of the first flow channel, the second flow channel and the three-dimensional structure of the product of an inclined top glue feeding device of the utility model;

[0025] Figure 7 It is a schematic diagram of the top view of the first flow channel, the second flow channel and the product of an inclined top glue feeding device of the utility model;

[0026] Figure 8 for Figure 7 AA section view;

[0027] Description of the symbols in the figure:

[0028] 1. Bottom plate; 2. Front mold; 3. Back mold; 31. Air-avoiding hole; 32. Fluid hole; 4. Ejector bottom plate; 41. Ejector panel; 5. Slanted ejector glue injection mechanism; 51. Slanted ejector assembly; 511. First flow channel; 5111. First horizontal flow channel; 5112. First vertical flow channel; 512. Slanted ejector seat; 513. Slanted ejector rod; 5131. Flow channel portion; 514. Guide block; 52. Glue injection assembly; 521. Second flow channel; 6. Product. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[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 of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships described 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 referred device or element 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.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0036] See also Figures 1 to 4 The embodiment of the utility model discloses a slanted top glue feeding device, which includes: a bottom plate 1, and a front mold 2 and a rear mold 3 arranged on the bottom plate 1 in a vertical direction, when the front mold 2 and the rear mold 3 are attached to each other, a molding cavity for a glue injection molding product 6 is formed on the attached side; and also includes a slanted top glue injection mechanism 5, the glue outlet end of the slanted top glue injection mechanism 5 is connected to the molding cavity, and the glue injection flow channel of the slanted top glue injection mechanism 5 has at least one bend. Compared with the traditional submerged ejector glue feeding structure, the slanted top glue feeding device proposed in this embodiment realizes a smooth transition of the melt (i.e., the injection material injected into the molding cavity) from the glue injection component 52 to the molding cavity through the slanted top glue injection mechanism 5 with at least one bend in the glue injection channel, which helps to reduce the direct impact of the injection pressure on the product and reduce punching and deformation.

[0037] Furthermore, an ejector panel 41 and an ejector bottom plate 4 are provided between the bottom plate 1 and the rear mold 3 . The ejector panel 41 and the ejector bottom plate 4 are movably connected to the bottom plate 1 in the vertical direction. The lower end of the inclined ejector glue injection mechanism 5 is connected to the ejector bottom plate 4 .

[0038] Specifically, the inclined ejector glue injection mechanism 5 includes an inclined ejector assembly 51 and an injection assembly 52, one end of the inclined ejector assembly 51 is connected to the ejector base plate 4, and the other end is obliquely penetrated through the rear mold 3, and a first flow channel 511 connected to the molding cavity is opened on the other end of the inclined ejector assembly 51; one end of the injection assembly 52 is used to receive the melt, and the other end of the injection assembly 52 penetrates the front mold 2, and a second flow channel 521 is opened between the two ends of the injection assembly 52; the second flow channel 521 is connected to the first flow channel 511.

[0039] It should be explained that the movable ejector base plate 4 is used to achieve demolding. In a possible working scenario, the injection molding machine injects the melt through the second flow channel 521 of the injection assembly 52, and the melt enters the first flow channel 511 through the second flow channel 521, and finally enters the molding cavity. The melt is cooled and solidified in the molding cavity to form a product 6. When the product 6 is cooled and solidified, the drive mechanism is started to make the ejector base plate 4 drive the inclined ejector injection mechanism 5 to lift up, so that the product 6 is separated from the rear mold 3 with the lifting of the inclined ejector injection mechanism 5, and can be grasped by a robot or manually.

[0040] Furthermore, the first runner 511 is opened on the outer surface of the inclined top component 51 in the horizontal direction, the second runner 521 is located on one side of the inclined top component 51 where the first runner 511 is opened and is separated from the first runner 511, a fluid hole 32 is opened on the rear mold 3, the second runner 521 and the first runner 511 are connected through the fluid hole 32, and the first runner 511 and the second runner 521 are connected through the fluid hole 32, ensuring that the melt can smoothly flow from the injection component 52 into the inclined top component 51 and finally enter the molding cavity. At the same time, since the first runner 511 is opened on the outer surface of the inclined top component 51 in the horizontal direction, the demolding of the product 6 and the rear mold 3 can be smoother, and the solidified melt retained in the first runner 511 can be smoothly separated together with the product 6. It should be pointed out that the part of the solidified melt retained in the first runner 511 will be removed from the product 6 in the subsequent process, which will not be elaborated here.

[0041] Further, the first flow channel 511 includes a first horizontal flow channel 5111 and a first vertical flow channel 5112. One end of the first horizontal flow channel 5111 is connected to the fluid hole 32, the other end of the first horizontal flow channel 5111 is connected to the lower end of the first vertical flow channel 5112, and the upper end of the first vertical flow channel 5112 is connected to the molding cavity. Specifically, the first horizontal flow channel 5111 is opened in the horizontal direction, and the first vertical flow channel 5112 and the second flow channel 521 are opened in the vertical direction. In a possible working process, the injection molding machine injects the melt into the fluid hole 32 through the second flow channel 521 of the injection component 52. The melt enters the first horizontal flow channel 5111 from the fluid hole 32 and flows in the horizontal direction. During this process, the flow rate and flow direction of the melt are initially controlled to reduce the generation of turbulence and bubbles; the melt enters the lower end of the first vertical flow channel 5112 from the other end of the first horizontal flow channel 5111 and begins to flow vertically upward. During this process, the melt gradually fills the first vertical flow channel 5112 and continues to move upward; the melt finally enters the molding cavity from the upper end of the first vertical flow channel 5112 and begins to fill various parts of the molding cavity. Since the melt is filled in a layered manner, the uniformity and quality of the filling can be ensured. Finally, the melt is cooled and solidified in the molding cavity to obtain product 6.

[0042] Specifically, the width of the first vertical channel 5112 gradually decreases toward the direction close to the molding cavity. It is understandable that in fluid mechanics, the pressure of the fluid will be transmitted along the flow direction, and the gradual decrease in the width of the first vertical channel 5112 will cause the melt to be subjected to gradually increasing pressure during the rising process. This pressure change helps to improve the uniform filling effect of the melt in the molding cavity, and when the melt flows through the gradually narrowing channel, shear force will be generated, which helps to improve the mixing and dispersion effect of the melt and reduce the generation of bubbles and inclusions.

[0043] Furthermore, the inclined ejector assembly 51 includes an inclined ejector seat 512 and an inclined ejector rod 513. The inclined ejector seat 512 is installed on the ejector base plate 4. The rear mold 3 is provided with an air avoidance hole 31. The inclined ejector rod 513 is passed through the air avoidance hole 31 and one end is rotatably connected to the inclined ejector seat 512, and the other end extends toward the molding cavity to form a flow channel portion 5131. The first flow channel 511 is opened on one side of the flow channel portion 5131 in the horizontal direction, and the inclined direction of the inclined ejector rod 513 is away from the second flow channel 521.

[0044] Specifically, a guide block 514 is installed in the air avoidance hole 31, a guide hole is opened on the guide block 514, and the inclined ejector rod 513 is also inserted into the guide hole; the inclination of the air avoidance hole 31 and the guide hole is the same as that of the inclined ejector rod 513, the radial width of the air avoidance hole 31 is greater than the radial width of the inclined ejector rod 513, and the radial width of the guide hole is the same as the radial width of the inclined ejector rod 513. When it is necessary to eject the product 6, the inclined ejector rod 513 starts to move under the action of the driving force. Since the inclined direction of the inclined ejector rod 513 is away from the second flow channel 521, the product 6 can be smoothly ejected from the rear mold 3 without causing damage to the surface of the product 6. At the same time, the guide block 514 and the guide hole provide stable guidance and support for the inclined ejector rod 513. It can be understood that due to the existence of the guide block 514, the flow channel portion 5131 will move upward as the inclined ejector rod 513 rises, and will also move in the direction away from the second flow channel 521, so that the product 6 can be ejected from the rear mold 3 smoothly.

[0045] Furthermore, the inclined ejector glue feeding device also includes a driving mechanism, which is used to drive the ejector base plate 4 to approach or move away from the rear mold 3 in the vertical direction. When the driving mechanism is started, the ejector base plate 4 will move toward the rear mold 3. As the ejector base plate 4 gradually approaches the rear mold 3, the inclined ejector rod 513 moves upward under the guidance of the guide hole, and also moves away from the second flow channel 521, so that the inclined ejector assembly 51, the rear mold 3 and the product 6 can be separated smoothly, and the solidified material originally located in the first flow channel 511 can also be smoothly moved out with the product 6 to leave the first flow channel 511.

[0046] Compared with the prior art, the inclined top glue feeding device of the utility model slows down the speed and impact force of the melt entering the molding cavity through the bending design of the glue injection flow channel, avoids the defects of punching marks caused by high-speed impact, effectively reduces the influence of the glue feeding pressure on the product, reduces the occurrence of defects such as shrinkage deformation and glue powder dragging, and reduces the formation of punching marks at the gate position, thereby significantly improving the appearance quality of the product.

[0047] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An inclined top glue feeding device, characterized in that: include: A base plate, and a front mold and a rear mold arranged on the base plate in a vertical direction, when the front mold is bonded with the rear mold, a molding cavity for injection molding products is formed on the bonding side; it also includes an inclined top injection mechanism, the glue outlet end of the inclined top injection mechanism is connected to the molding cavity, and the injection flow channel of the inclined top injection mechanism has at least one bend.

2. The oblique top glue feeding device according to claim 1, characterized in that: An ejector panel and an ejector bottom plate are provided between the bottom plate and the rear mold, and the ejector panel and the ejector bottom plate are movably arranged in the vertical direction; the lower end of the inclined ejector glue injection mechanism is connected to the ejector bottom plate.

3. The oblique top glue feeding device according to claim 2 is characterized in that: The inclined ejector glue injection mechanism includes an inclined ejector assembly and a glue injection assembly, one end of the inclined ejector assembly is connected to the ejector pin base plate, and the other end is obliquely penetrated through the rear mold, and a first flow channel connected to the molding cavity is opened on the other end of the inclined ejector assembly; one end of the glue injection assembly is used to receive the melt, and the other end of the glue injection assembly penetrates the front mold, and a second flow channel is opened between the two ends of the glue injection assembly; the second flow channel is communicated with the first flow channel.

4. The oblique top glue feeding device according to claim 3 is characterized in that: The first flow channel is opened on the horizontal outer surface of the inclined top component, the second flow channel is located on the side of the inclined top component where the first flow channel is opened, a fluid hole is opened on the rear mold, and the second flow channel and the first flow channel are connected through the fluid hole.

5. The oblique top glue feeding device according to claim 4, characterized in that: The first flow channel includes a first horizontal flow channel and a first vertical flow channel, one end of the first horizontal flow channel is connected to the fluid hole, the other end of the first horizontal flow channel is connected to the lower end of the first vertical flow channel, and the upper end of the first vertical flow channel is connected to the molding cavity.

6. The oblique top glue feeding device according to claim 5, characterized in that: The width of the first vertical channel gradually decreases toward the direction approaching the forming cavity.

7. The oblique top glue feeding device according to claim 5, characterized in that: The first horizontal flow channel is opened along the horizontal direction, and the first vertical flow channel and the second flow channel are opened along the vertical direction.

8. The oblique top glue feeding device according to claim 3, characterized in that: The inclined ejector assembly includes an inclined ejector seat and an inclined ejector rod, the inclined ejector seat is installed on the ejector base plate, the rear mold is provided with an air avoidance hole, the inclined ejector rod is passed through the air avoidance hole and one end is rotatably connected to the inclined ejector seat, and the other end extends toward the molding cavity to form a flow channel portion, the first flow channel is provided on one side of the flow channel portion in the horizontal direction, and the inclined direction of the inclined ejector rod is away from the second flow channel.

9. The oblique top glue feeding device according to claim 8, characterized in that: A guide block is installed in the air avoidance hole, a guide hole is opened on the guide block, and the inclined push rod is also passed through the guide hole; the inclinations of the air avoidance hole and the guide hole are the same as those of the inclined push rod, the radial width of the air avoidance hole is larger than the radial width of the inclined push rod, and the radial width of the guide hole is the same as the radial width of the inclined push rod.

10. The oblique top glue feeding device according to claim 2, characterized in that: It also includes a driving mechanism, which is used to drive the ejector base plate to approach or move away from the rear mold in a vertical direction.

Images