A release agent coating device before injection molding of front cabin decorative cover

Abstract

The present invention discloses a device for coating a mold release agent before injection molding of a front cabin decorative cover, which relates to the field of injection molding technology, and includes a frame, and also includes: a die: which is rotatably connected to the frame, a punch: which moves in the vertical direction of the frame; a spraying part: which is horizontally slidably connected to the frame, and is used to coat the mold release agent on the die and the punch; a transmission component: which is arranged on the frame, connected to the spraying part, and also drives the die to rotate at the same time; after the injection molding is completed, the transmission component drives the die to move to the injection molding stroke and also drives the spraying part to slide on the frame, thereby realizing the coating of the mold release agent on the die and the punch. After the demoulding is completed, the die and the punch are driven by the transmission component to move to the injection molding formation and also drive the spraying part to move in the horizontal direction of the frame, thereby making the spraying part spray the mold release agent evenly in the mold cavity, saving processing time.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding, and in particular to a release agent coating device before injection molding of a front cabin decorative cover. Background Art

[0002] The front cabin decorative cover of the car is generally processed by injection molding. During the processing, a layer of mold release agent is generally coated on the concave mold and the convex mold. After the injection molding is completed, the front cabin decorative cover can be demoulded.

[0003] In the utility model with announcement number: CN218078761U, announcement date: 2022-12-20, and name "A release agent automatic coating device", it includes a horizontally arranged workbench and a support leg fixedly arranged at the bottom of the workbench; a liquid storage box with an upper opening is fixedly arranged on the workbench, and the liquid storage box is used to store the release agent; a rotary coating table is provided on the workbench, and the rotary coating table includes a vertically arranged lifting mandrel and a base fixedly arranged at the bottom of the lifting mandrel, and the base is detachably fixedly connected to the workbench; the lifting mandrel is a lifting rod structure with adjustable upper and lower lengths, and the lifting mandrel includes a sleeve and a lifting rod fixedly arranged on the base, and the lower part of the lifting rod is movably arranged in the sleeve; the lifting rod A connecting plate is fixed on the top, and a mounting base plate is detachably fixed on the bottom of the connecting plate. The mounting base plate is located directly above the liquid storage box, and a sponge block is fixed below the mounting base plate, and the sponge block is used to dip the release agent in the liquid storage box; a horizontally arranged mold placement plate is rotatably provided on the sleeve, and a mold holder is detachably fixed on the mold placement plate, and a removable mold to be processed is clamped on the mold holder, and an inner cavity with an upper opening is provided in the mold to be processed, and the mold to be processed can be rotated to directly below the sponge block along with the mold placement plate; the horizontal cross-sectional shape of the sponge block is the same as the horizontal cross-sectional shape and size of the inner cavity of the mold to be processed, and the height of the sponge block is greater than or equal to the depth of the inner cavity of the mold to be processed.

[0004] In the prior art including the above-mentioned patent, after the injection molding of the front cabin decorative cover is completed, in order to allow the front cabin decorative cover to be quickly demolded from the mold, a layer of mold release agent is generally applied in the mold cavity formed between the die and the punch after the demolding is completed and before the injection molding, while in the prior art, the mold release agent is generally applied after the demolding is completed, and the transmission mechanism for driving the die and the punch to separate and the mechanism for driving the sprayed parts to move generally use two sets of driving mechanisms, which also prolongs the processing time to a certain extent. Summary of the invention

[0005] The object of the present invention is to provide a release agent coating device before injection molding of a front cabin decorative cover to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A device for coating a mold release agent before injection molding of a front cabin decorative cover comprises a frame, and also comprises: a die, which is rotatably connected to the frame, and a punch, which moves in the vertical direction of the frame; a spraying part, which is horizontally slidably connected to the frame and is used to coat the mold release agent on the die and the punch; a transmission component, which is arranged on the frame, connected to the spraying part, and also drives the die to rotate; after the injection molding is completed, the transmission component drives the die to move to the injection molding stroke and also drives the spraying part to slide on the frame, thereby realizing the coating of the mold release agent on the die and the punch.

[0008] Preferably, the spraying part includes a slider slidably connected to the frame and a spraying pipe rotatably connected to the slider, and the spraying pipe performs spraying operation during the movement of the die to the injection molding.

[0009] Preferably, a fixing seat is provided on the frame, a transmission groove is formed through the fixing seat, and the feed pipe on the spray pipe is matched with the transmission groove.

[0010] Preferably, the transmission groove comprises a horizontal portion and two arc-shaped portions, and the first and last sections of the horizontal portion are respectively connected to the ends of the arc-shaped portions.

[0011] Preferably, the transmission assembly comprises a first driving unit and a second driving unit, wherein the first driving unit is used to drive the spray pipe to slide on the frame, and the second driving unit is used to drive the die to flip.

[0012] Preferably, the first driving unit comprises a telescopic rod arranged between the frame and the male mold and a hinged rod hinged on the female mold and the male mold.

[0013] Preferably, the spray pipe has a first state perpendicular to the horizontal direction of the frame workbench and a second state parallel to the horizontal direction of the workbench on the frame. In the spraying state, the spray pipe is provided with a plurality of spray holes at the positions corresponding to the concave mold and the convex mold.

[0014] Preferably, the second driving unit comprises a driving gear fixedly connected to the hinge shaft of the die, a driven gear rotatably connected to the frame, and a rack fixedly connected to the slide block.

[0015] Preferably, the driving gear is driven by a motor, and the motor is mounted on a frame.

[0016] Preferably, the driving gear is meshed with the driven gear, and the driven gear is meshed with the rack.

[0017] In the above technical scheme, the present invention provides a release agent coating device before injection molding of the front cabin decorative cover. After demolding is completed, the transmission component drives the die and the punch to move to the injection molding process, and also drives the spraying parts to move the frame in the horizontal direction, so that the spraying parts can evenly spray the release agent in the mold cavity, saving processing time.

[0018] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0019] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the overall structure of a coating device provided in an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the installation structure of the telescopic rod provided in an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the fixing base installation structure provided in an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the driving gear structure provided by an embodiment of the present invention;

[0025] Figure 5 A schematic diagram of the spray pipe structure provided by an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of a rack installation structure provided in an embodiment of the present invention;

[0027] Figure 7 A schematic diagram of a slider structure provided by an embodiment of the present invention;

[0028] Figure 8 A schematic diagram of the feed port installation structure provided in an embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 1. Frame; 1.1. Concave die; 1.10. Articulated rod; 1.2. Punch die; 1.20. Telescopic rod; 1.3. Spraying pipe; 1.30. Feeding port; 1.4. Slider; 1.5. Motor; 1.6. Driving gear; 1.7. Driven gear; 1.8. Rack; 1.9. Fixed seat; 1.90. Transmission groove. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0032] Reference Figure 1-8 As shown, the present invention provides a release agent coating device for a front cabin decorative cover before injection molding, comprising a frame 1, and further comprising: a female mold 1.1: which is rotatably connected to the frame 1, and a male mold 1.2; which moves in the vertical direction of the frame 1;

[0033] Spraying part: It is horizontally slidably connected to the frame 1 and is used to apply the release agent to the concave mold 1.1 and the convex mold 1.2;

[0034] Transmission assembly: It is arranged on the frame 1, connected with the spraying part, and also drives the die 1.1 to rotate;

[0035] After the injection molding is completed, the transmission assembly drives the die 1.1 to move to the injection stroke and also drives the sprayed part to slide on the frame 1, thereby coating the release agent on the die 1.1 and the punch 1.2.

[0036] Specifically, a female mold 1.1 is rotatably connected to the working surface of the frame 1. The hinged section of the female mold 1.1 can be adjusted according to the installation and production on site, and the end of the female mold 1.1 is not hinged on the frame 1. The frame 1 can also be adjusted accordingly to the position of the female mold 1.1. An injection port is provided on the female mold 1.1, and a through hole adapted to the injection nozzle is also provided at the position corresponding to the injection port on the frame 1. A male mold 1.2 is slidably connected to the frame 1 in the vertical direction. The male mold 1.2 and the female mold 1.1 have injection positions and demoulding positions, such as Figure 1 The demoulding position is shown. Figure 3 The injection molding position is shown. Figure 2 The figure shows the movement from the demoulding position to the injection position after the injection molding is completed.

[0037] Spraying parts: Its sliding link is on the workbench of the frame 1. The spraying parts move in the horizontal position of the frame 1 to evenly spray the release agent in the injection cavity formed between the concave mold 1.1 and the convex mold 1.2 to prevent the mold from being demoulded after the injection molding is completed. Figure 1-3 As shown, the spray part includes a spray pipe 1.3, and a feed port 1.30 is connected through the spray pipe 1.3. The feed port 1.30 is connected to a release agent container through a bellows. Since the spray pipe 1.3 not only moves in the horizontal direction but also has a flipping process, a rotary joint can be provided between the feed port 1.30 and the port of the bellows to connect the feed port 1.30 to the bellows. When the die 1.1 and the punch 1.2 move to the injection stroke (not shown in the figure), the spray pipe starts to spray the release agent. When the die 1.1 and the punch 1.2 move to the demolding stroke, the spray pipe slides on the frame 1, but does not spray the release agent.

[0038] Transmission assembly: It is arranged on the frame 1. When driving the female mold 1.1 to rotate, the transmission assembly also drives the male mold 1.2 to move in the vertical direction of the frame 1, so that the female mold 1.1 and the male mold 1.2 can be molded together for injection molding and demolded after mold separation, and also drives the spray pipe 1.3 to slide in the horizontal direction of the frame 1, so that during the demolding stroke, the spray pipe sprays the demolding agent evenly in the mold cavity formed by the female mold 1.1 and the male mold 1.2. In this embodiment, the transmission assembly is a mechanism that converts circular motion into linear reciprocating motion. In the prior art, the mechanical mechanisms that can realize this motion include crank rocker mechanism, gear rack 1.8 mechanism, cylindrical protrusion rotating groove, etc., which can convert circular motion into reciprocating linear motion. All of them are suitable for this embodiment.

[0039] During use, after the injection molding of the front cabin decorative cover is completed, the die 1.1 starts to rotate, so that the die 1.1 moves from a state parallel to the workbench of the frame 1 to a state perpendicular to the workbench of the frame 1. In this process, the die 1.1 drives the punch 1.2 to move in the vertical direction of the frame 1, so that the die 1.1 and the punch 1.2 are in a state of relative movement, that is, the die 1.1 and the punch 1.2 are relatively separated. At the same time, the transmission assembly also drives the spray pipe 1.3 to move in the horizontal direction of the frame 1, so that the spray pipe 1.3 evenly sprays the release agent in the mold cavity.

[0040] The present invention provides a release agent coating device for a front cabin decorative cover before injection molding. After demolding is completed, the transmission component drives the concave mold 1.1 and the convex mold 1.2 to move to the injection molding process, and also drives the spraying part to move the frame 1 in the horizontal direction, so that the spraying part evenly sprays the release agent in the mold cavity, saving processing time.

[0041] Reference Figure 2 ,4 -8, in another embodiment provided by the present invention, the spraying part includes a slider 1.4 slidably connected to the frame 1 and a spraying tube 1.3 rotatably connected to the slider 1.4, and the spraying tube 1.3 performs spraying operation when the die 1.1 moves to the injection stroke.

[0042] Among them, a fixing seat 1.9 is arranged on the frame 1, and a transmission groove 1.90 is formed through the fixing seat 1.9, and the feed pipe on the spray pipe is matched with the transmission groove 1.90.

[0043] The transmission groove 1.90 comprises a horizontal portion and two arc-shaped portions, and the first and last sections of the horizontal portion are respectively connected to the ends of the arc-shaped portions.

[0044] Specifically, a fixed seat 1.9 is fixedly connected to the frame 1, and a transmission groove 1.90 is provided on the fixed seat 1.9. The transmission groove 1.90 includes a horizontal portion and two arc-shaped portions. The first and tail sections of the horizontal portion are respectively connected with the ends of each arc-shaped portion. The central angle of each arc-shaped portion is 90°. The feed port 1.30 on the spray pipe 1.3 is matched with the transmission groove 1.90, and the feed port 1.30 slides in the transmission groove 1.90. A slide groove matched with the slider 1.4 is provided on the workbench on the frame 1. The slider 1.4 is located in the slide groove, and a spray pipe 1.3 is rotatably connected to the slider 1.4.

[0045] During use, when the injection molding of the front cabin decorative cover is completed, the die 1.1 starts to rotate, so that the die 1.1 moves from a state parallel to the workbench of the frame 1 to a state perpendicular to the workbench of the frame 1. In this process, the die 1.1 drives the punch 1.2 to move in the vertical direction of the frame 1, so that the die 1.1 and the punch 1.2 are in a state of relative movement, that is, the die 1.1 and the punch 1.2 are relatively separated, and at the same time, the transmission assembly drives the slider 1.4 to slide horizontally on the workbench of the frame 1, and the feed port 1.30 on the spray pipe 1.3 slides in the transmission groove 1.90, so that the spray pipe moves from the circular arc section of the transmission groove 1.90 to the horizontal section, so that the spray pipe 1.3 rotates from a state parallel to the workbench of the frame 1 to a state perpendicular to the workbench of the frame 1, and the spray pipe 1.3 begins to spray the release agent evenly on the die 1.1 and the punch 1.2.

[0046] Reference Figure 4-8 As shown, in another embodiment provided by the present invention, the transmission assembly includes a first driving unit and a second driving unit, the first driving unit is used to drive the spray pipe 1.3 to slide on the frame 1, and the second driving unit is used to drive the die 1.1 to flip.

[0047] The first driving unit comprises a telescopic rod 1.20 arranged between the frame 1 and the punch 1.2 and an articulated rod 1.10 hinged on the die 1.1 and the punch 1.2.

[0048] The spray pipe 1.3 has a first state perpendicular to the workbench of the frame 1 and a second state parallel to the workbench on the frame 1 in the horizontal direction. In the spraying state, the spray pipe 1.3 is provided with a plurality of spray holes at positions corresponding to the concave mold 1.1 and the convex mold 1.2.

[0049] The second driving unit comprises a driving gear 1.6 fixedly connected to the hinge shaft of the die 1.1, a driven gear 1.7 rotatably connected to the frame 1, and a rack 1.8 fixedly connected to the slide block 1.4.

[0050] The driving gear 1.6 is driven by the motor 1.5, and the motor 1.5 is mounted on the frame 1.

[0051] The driving gear 1.6 meshes with the driven gear 1.7, and the driven gear 1.7 meshes with the rack 1.8.

[0052] Specifically, a motor 1.5 is fixedly installed on the frame 1, and the output shaft of the motor 1.5 is coaxially fixedly connected with the driving gear 1.6, and the driving gear 1.6 is coaxially fixedly connected with the hinge shaft of the die 1.1. One of the driving gears 1.6 is meshed with a driven gear 1.7, and the driven gear 1.7 is rotatably connected to the frame 1. The transmission ratio between the driving gear 1.6 and the driven gear 1.7 can be adjusted accordingly by technical personnel in the relevant field according to the on-site installation and manufacturing conditions, so that the spray pipe 1.3 will not interfere with the movement trajectory of the die 1.1 and the punch 1.2 during the movement of the horizontal section, and the driven gear 1.7 is meshed with the rack 1.8, and the rack 1.8 is fixedly connected to the slider 1.4, and then the driven gear 1.7 is driven to rotate by the rotation of the driving gear 1.6, so that the driven gear 1.7 drives the rack 1.8 to move, and the rack 1.8 drives the slider 1.4 to slide on the horizontal plane of the workbench.

[0053] During use, after the injection molding of the front cabin decorative cover is completed, the female mold 1.1 starts to rotate, so that the female mold 1.1 drives the hinge rod 1.10 to move during the rotation, and then the hinge rod 1.10 drives the female mold 1.1 to move upward in the vertical direction of the frame 1, so that the female mold 1.1 moves from a state parallel to the workbench of the frame 1 to a state perpendicular to the workbench of the frame 1. In this process, the female mold 1.1 and the punch 1.2 are in a state of relative movement, that is, the female mold 1.1 and the punch 1.2 are relatively separated. At this time, since the active gear 1.6 not only drives the female mold 1.1 to rotate during the rotation, but also The driving gear 1.6 is driven to rotate, so that the driving gear 1.6 drives the driven gear to move, and the driven gear 1.7 drives the rack 1.8 to move, and then the rack 1.8 drives the slider 1.4 to move in the horizontal direction of the workbench of the frame 1, and then the feed port 1.30 on the spray pipe 1.3 moves from the arc section of the transmission groove 1.90 to the horizontal section. In this process, the spray pipe 1.3 is rotated from a horizontal state parallel to the workbench of the frame 1 to a state perpendicular to the workbench of the frame 1. At this time, the release agent starts to be sprayed in the spray pipe 1.3, so that after demoulding, the release agent is evenly sprayed in the mold cavity.

[0054] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A release agent coating device for a front cabin decorative cover before injection molding, comprising a frame (1), characterized in that: Also includes: Concave die (1.1): rotatably connected to the frame (1), and convex die (1.2); It moves in the vertical direction of the frame (1); Spraying part: It is horizontally slidably connected to the frame (1) and is used to apply a release agent to the concave mold (1.1) and the convex mold (1.2); A transmission assembly: it is arranged on the frame (1), is connected to the spraying part, and simultaneously drives the die (1.1) to rotate; After demoulding is completed, the transmission component drives the female mold (1.1) to move to the injection stroke and also drives the sprayed part to slide on the frame (1), thereby achieving the coating of the demoulding agent on the female mold (1.1) and the male mold (1.2); The spraying part comprises a slider (1.4) slidably connected to the frame (1) and a spraying pipe (1.3) rotatably connected to the slider (1.4), wherein the spraying pipe (1.3) performs a spraying operation when the die (1.1) moves to the injection stroke; The frame (1) is provided with a fixed seat (1.9), the fixed seat (1.9) is provided with a transmission groove (1.90) extending therethrough, and the feed pipe on the spray pipe (1.3) is adapted to the transmission groove (1.90); The transmission groove (1.90) comprises a horizontal portion and two arc-shaped portions, and the first and last sections of the horizontal portion are respectively connected to the ends of the arc-shaped portions; The transmission assembly comprises a first drive unit and a second drive unit, the first drive unit being used to drive the spray pipe (1.3) to slide on the frame (1), and the second drive unit being used to drive the die (1.1) to flip; The first driving unit comprises a driven gear (1.7) rotatably connected to the frame (1) and a rack (1.8) fixedly connected to the slider (1.4); The second driving unit comprises a telescopic rod (1.20) arranged between the frame (1) and the male mold (1.2), an articulated rod (1.10) hinged on the female mold (1.1) and the male mold (1.2), and a driving gear (1.6) fixedly connected to the articulated shaft of the female mold (1.1); The driving gear (1.6) meshes with the driven gear (1.7), and the driven gear (1.7) meshes with the rack (1.8); The driving gear (1.6) is driven by a motor (1.5), and the motor (1.5) is mounted on the frame (1).

2. The device for coating a release agent before injection molding of a front cabin decorative cover according to claim 1, characterized in that: The spray pipe (1.3) has a first state in which it is perpendicular to the workbench of the frame (1) in the horizontal direction and a second state in which it is parallel to the workbench on the frame (1) in the horizontal direction. In the spraying state, the spray pipe (1.3) is provided with a plurality of spray holes at positions corresponding to the concave mold (1.1) and the convex mold (1.2).

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