Lampshade ring surface assembly production mold

Abstract

The invention relates to the technical field of plastic processing, and discloses a lampshade ring surface assembly production mold which comprises a supporting rod, a lower layer shell is fixedly connected to the outer portion of the lower layer of the supporting rod, a supporting plate is fixedly connected to the outer portion of the lower layer shell, and a supporting column is fixedly connected to the upper surface of the supporting plate. The inner top wall of the supporting rod is fixedly connected with an electric push rod, the output end of the electric push rod is connected with an upper layer shell, an injection opening is formed in the upper layer shell, a cover plate is arranged outside the lower layer shell, a hole is formed in the lower layer shell, and the lower layer shell is provided with an ejector rod assembly. The interior of the cover plate is slidably connected with a buckle assembly, and the cover plate is fixedly connected to the exterior of the lower layer shell through the buckle assembly. The upper-layer shell ascends to pull the connecting strip, the rotating rod is driven to drive the gear to be meshed with the rack, the ejector plate is pushed to be perpendicular to the ejector piece, manual intervention is not needed in the whole process, the ejection path is accurate and reliable, and the ejector piece deviation risk is eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic processing, and particularly to a production mold for a lamp cover toroidal component. Background Art

[0002] In the technical field of plastic processing, injection molds, as the core equipment for realizing mass production of plastic products, their automation degree and structural reliability directly affect production efficiency and product quality. Especially in the lighting industry, the injection molding of lamp cover toroidal components needs to meet the production requirements of high precision and large quantity. Therefore, the design of the ejection and reset mechanisms of the mold becomes a key technical link.

[0003] In the prior art, the ejection mechanisms of traditional production molds for lamp cover toroidal components usually adopt manual push rods or simple hydraulic drive structures. For example, in some molds, the ejector rod is driven to move by manually rotating a screw to complete part taking, or relies on a hydraulic cylinder to provide the ejection force, and the reset process is achieved through the elastic potential energy of a spring. Such solutions have the following technical characteristics: the ejection action requires manual intervention or an additional power source, there is no one-way locking mechanism in the transmission path, and it is difficult to synchronize the storage and release process of the reset power with the mold opening and closing actions.

[0004] However, during the process of implementing the technical solution of the present application, the inventors of the present application found that the above technology has at least the following technical problems: the automation degree of the ejection mechanism is insufficient, resulting in many manual intervention links in the production cycle. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a production mold for a lamp cover toroidal component, which solves the problem of insufficient automation degree of the ejection mechanism in the prior art, resulting in many manual intervention links in the production cycle.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A production mold for a lamp cover toroidal component, including a support rod, the outer layer of the lower part of the support rod is fixedly connected with a lower shell, the outside of the lower shell is fixedly connected with a support plate, the upper surface of the support plate is fixedly connected with a support column, the inner top wall of the support rod is fixedly connected with an electric push rod, the output end of the electric push rod is connected with an upper shell, an injection port is opened inside the upper shell, both sides inside the upper shell are slidably connected to the outside of the support column, a cover plate is arranged outside the lower shell, a hole is opened inside the lower shell, a ejector rod assembly is arranged in the lower shell, a buckle assembly is slidably connected inside the cover plate, and the cover plate is fixedly connected to the outside of the lower shell through the buckle assembly.

[0007] By adopting the above technical solution, the output end of the electric push rod is connected to the upper shell, which can accurately control the upper shell to slide along the support column to realize the automatic closing and opening of the mold, replacing the traditional manual operation and laying the foundation for automation; the ejector rod assembly of the lower shell is linked with the movement of the upper shell, and its structures such as gear rack and spring energy storage can trigger the automatic ejection of the top plate for the molded part synchronously when the mold is opened, without manual intervention throughout the process; at least two symmetrically distributed support columns provide double-track guidance for the upper shell, restricting lateral offset and ensuring its movement accuracy, enabling the transmission of the ejector rod assembly to be synchronized with the action of the mold parting surface and improving the reliability of automatic ejection; the cover plate is quickly fixed to the lower shell through the buckle assembly, reducing the downtime caused by traditional manual disassembly and assembly, ensuring the continuous operation of the automated production line. The above technical features cooperate with each other, converting the mold opening and closing power into automatic ejection kinetic energy, forming a full-process automated closed loop, fundamentally solving the problem of the ejection mechanism relying on manual operation in the prior art, and significantly improving production efficiency and stability.

[0008] Preferably, the ejector rod assembly includes a rotating rod, one side of the outer part of the rotating rod is fixedly connected with a gear, both the rotating rod and the gear are rotatably connected inside the cover plate, the tooth end of the gear is meshed and connected with a rack, the outer part of the rack is slidably connected inside the cover plate, the top end of the rack is fixedly connected with a top plate, and the outer part of the top plate is arranged inside the cover plate.

[0009] Preferably, the other side of the outer part of the rotating rod is fixedly connected with a spring and a ratchet, the fixed end of the spring is fixedly connected to the outside of the ratchet, the tooth end of the ratchet is meshed and connected with a ratchet tooth, and the outer part of the ratchet tooth is fixedly connected with a dial.

[0010] Preferably, one end outer wall of the rotating rod is fixedly connected with a mounting post, a connecting strip is arranged outside the mounting post, the connecting strip is wound around the outside of the mounting post, the top end of the connecting strip is fixedly connected with a fixing post, and the outside of the fixing post is fixedly connected to the outside of the upper shell.

[0011] Preferably, a guide rod is fixedly connected to the outside of the upper shell, and the fixing post and the guide rod are arranged adjacent to each other.

[0012] Preferably, the buckle assembly includes a housing, the outside of the housing is slidably connected inside the cover plate and the lower shell, a sliding column is slidably connected inside the housing, one end of the sliding column is fixedly connected with a handle, and the other end of the sliding column is fixedly connected with a sliding plate.

[0013] Preferably, a connecting column is rotatably connected to the inside of one side of the housing, a clamping plate is fixedly connected to the outside of the connecting column, a connecting rope is fixedly connected to the outside of the clamping plate, and the other end of the connecting rope is fixedly connected to the outside of the sliding plate.

[0014] Preferably, a spring is provided on the outer wall of the clamping plate, and the other end of the spring is arranged inside the housing. The spring is used to push the clamping plate to reset and engage.

[0015] Preferably, the number of the support columns is at least two, symmetrically distributed on the upper surface of the support plate, and used to stabilize the sliding track of the upper shell.

[0016] Preferably, the buckle assembly corresponds to the position of the hole.

[0017] Working principle: First, start the electric push rod. The output end of the electric push rod drives the upper shell to slide downward along the outer wall of the support column. When the lower surface of the upper shell completely fits the upper surface of the lower shell, the mold is closed to form a complete annular cavity. At this time, the molten plastic raw material is injected into the cavity through the injection port to complete the injection molding filling and pressure holding process. After injection molding, the electric push rod starts in the reverse direction, driving the upper shell to slide upward to open the mold. During the upward movement of the upper shell, the ejector rod assembly ejects the formed lamp cover ring surface assembly inside the lower shell, facilitating manual part taking. At the same time, it provides the reset power for the next ejection action.

[0018] When it is necessary to clean the inside of the lower shell or replace the mold, the buckle assembly is disengaged from the card slot of the lower shell. At this time, the cover plate can slide along the outer wall of the lower shell to open. After the maintenance operation is completed, the lower shell is re-locked to achieve the quick fixation of the cover plate.

[0019] The present invention provides a production mold for a lamp cover ring surface assembly. It has the following beneficial effects: 1. In the present invention, when the upper shell rises, it pulls the connecting bar, drives the rotating rod to drive the gear and the rack to engage, and pushes the top plate to vertically eject the part. The whole process does not require manual intervention. The combination of the ratchet and the ratchet teeth ensures that only the upward ejection action is allowed. The coiled spring is automatically tightened and stored energy due to the guide rod limit when the mold is closed, providing the reset power for the next cycle, avoiding power interruption, avoiding oil pollution and energy consumption problems, and the ejection path is accurate and reliable, eliminating the risk of ejector part offset, meeting the technical trend of energy conservation and emission reduction.

[0020] 2. In the present invention, through the spring self-locking and linkage rope design of the buckle assembly, the quick installation and disassembly of the cover plate are realized. When pressing the grip, the sliding plate pulls the connecting rope to compress the spring and release the clamping plate, enabling the cover plate to be separated within 3 seconds; after maintenance, the elastic force of the spring drives the clamping plate to rebound to the hole to complete self-locking. The maintenance process is shortened, and the shutdown maintenance efficiency is improved.

[0021] 3. In the present invention, the coordinated design of the connecting bar and the guide rod converts the linear motion of the upper shell into the rotational motion of the rotating rod, forming a compact power transmission path. The guide rod avoids the offset or winding of the connecting bar during the transmission process by limiting the movement track of the connecting bar, ensuring that the action of the ejector rod assembly is synchronized with the opening and closing of the mold. No additional transmission components are required, reducing mechanical losses and failure points. At the same time, it saves the internal space of the mold and is convenient for miniaturized design. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a partial structural schematic diagram of the lower shell of the present invention; Figure 3 is a partial structural schematic diagram of the cover plate of the present invention; Figure 4 is a partial structural schematic diagram of the rack of the present invention; Figure 5 is a partial structural schematic diagram of the mainspring of the present invention; Figure 6 is a partial structural schematic diagram of the fixed column of the present invention; Figure 7 is a partial structural schematic diagram of the buckle assembly of the present invention; Figure 8 is a partial structural schematic diagram of the sliding plate of the present invention.

[0023] Wherein, 1, support rod; 2, lower shell; 3, support plate; 4, support column; 5, electric push rod; 6, upper shell; 7, injection port; 8, cover plate; 9, hole; 10, ejector rod assembly; 101, rotating rod; 102, gear; 103, rack; 104, top plate; 105, mainspring; 106, ratchet wheel; 107, ratchet teeth; 108, dial; 109, mounting column; 1010, connecting bar; 1011, fixed column; 1012, guide rod; 11, buckle assembly; 111, outer shell; 112, sliding column; 113, grip; 114, sliding plate; 115, connecting column; 116, clamping plate; 117, connecting rope; 118, spring. DETAILED DESCRIPTION OF THE INVENTION

[0024] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0025] Please refer to the attached Figure 1 - attached Figure 3, an embodiment of the present invention provides a production mold for a lamp shade toroidal component, including a support rod 1. The outer layer of the support rod 1 is fixedly connected with a lower layer shell 2. The outside of the lower layer shell 2 is fixedly connected with a support plate 3. The upper surface of the support plate 3 is fixedly connected with a support column 4. The inner top wall of the support rod 1 is fixedly connected with an electric push rod 5. The output end of the electric push rod 5 is connected with an upper layer shell 6. An injection port 7 is opened inside the upper layer shell 6. The two sides inside the upper layer shell 6 are slidably connected to the outside of the support column 4. A cover plate 8 is arranged outside the lower layer shell 2. A hole 9 is opened inside the lower layer shell 2. A ejector rod assembly 10 is arranged on the lower layer shell 2. A buckle assembly 11 is slidably connected inside the cover plate 8. The cover plate 8 is fixedly connected to the outside of the lower layer shell 2 through the buckle assembly 11.

[0026] Specifically, first start the electric push rod 5. The output end of the electric push rod 5 drives the upper layer shell 6 to slide downward along the outer wall of the support column 4. When the lower surface of the upper layer shell 6 is completely attached to the upper surface of the lower layer shell 2, the mold is closed to form a complete annular cavity. At this time, molten plastic raw materials are injected into the cavity through the injection port 7 to complete the injection molding filling and pressure holding process.

[0027] After injection molding, the electric push rod 5 starts in the reverse direction, driving the upper layer shell 6 to slide upward to open the mold. During the upward movement of the upper layer shell 6, the fixed column 1011 moves upward accordingly, pulling the connecting strip 1010 wound around the mounting column 109, and then driving the rotating rod 101 to rotate. The gear 102 at one end of the rotating rod 101 meshes with the rack 103 as it rotates, driving the rack 103 to slide upward along the inner chute of the cover plate 8, so that the top plate 104 ejects the formed lamp shade toroidal component inside the lower layer shell 2, facilitating manual part taking.

[0028] The ratchet 106 at the other end of the rotating rod 101 cooperates with the ratchet teeth 107 to ensure that the rotating rod 101 can only rotate in one direction. When the upper layer shell 6 rises, the ejector rod assembly 10 ejects the formed lamp shade toroidal component, and locks when descending, preventing the top plate 104 from accidentally falling back. The hairspring 105 is wound around the rotating rod 101. When the upper layer shell 6 descends to close the mold, under the limiting action of the guide rod 1012, the hairspring 105 is gradually tightened and stores elastic potential energy, providing a reset power for the next ejection action.

[0029] When it is necessary to clean the inside of the lower layer shell 2 or replace the mold, pull the handle 113 of the buckle assembly 11. The sliding column 112 drives the sliding plate 114 to slide inside the outer shell 111, and drags the clamping plate 116 to rotate around the connecting column 115 through the connecting rope 117, so that the clamping plate 116 disengages from the card slot of the lower layer shell 2. At this time, the cover plate 8 can slide along the outer wall of the lower layer shell 2 to open. After the maintenance operation is completed, release the handle 113, and the spring 118 pushes the clamping plate 116 to reset, re-clamping the lower layer shell 2 to achieve rapid fixation of the cover plate 8.

[0030] Please refer to the attached Figure 4 - attachedFigure 6 , the ejector rod assembly 10 includes a rotating rod 101. On the outer side of one side of the rotating rod 101, a gear 102 is fixedly connected. The rotating rod 101 and the gear 102 are both rotatably connected inside the cover plate 8. The tooth end of the gear 102 is meshed with a rack 103. The outer side of the rack 103 is slidably connected inside the cover plate 8. The top end of the rack 103 is fixedly connected with a top plate 104. The outer side of the top plate 104 is arranged inside the cover plate 8. On the outer side of the other side of the rotating rod 101, a hairspring 105 and a ratchet wheel 106 are fixedly connected. The fixed end of the hairspring 105 is fixedly connected to the outer side of the ratchet wheel 106. The tooth end of the ratchet wheel 106 is meshed with a ratchet tooth 107. The outer side of the ratchet tooth 107 is fixedly connected with a dial 108.

[0031] Specifically, when the upper shell 6 is driven by the electric push rod 5 to move upward, the fixed column 1011 pulls the connecting strip 1010 to drive the rotating rod 101 to rotate. The gear 102 on one side of the rotating rod 101 meshes with the rack 103 to drive the top plate 104 to vertically push out the molded part upward. The ratchet wheel 106 on the other side of the rotating rod 101 cooperates with the ratchet tooth 107 to form a one-way lock to prevent the top plate 104 from falling back due to the melt pressure during injection molding. At the same time, the hairspring 105 is wound up and stores elastic potential energy during the ejection process. When the mold is closed, the potential energy is released to drive the rotating rod 101 to reset, thus realizing automatic part ejection.

[0032] Please refer to the appendix Figure 5 and the appendix Figure 6 , on the outer wall of one end of the rotating rod 101, a mounting column 109 is fixedly connected. A connecting strip 1010 is arranged outside the mounting column 109. The connecting strip 1010 is wound around the mounting column 109. The top end of the connecting strip 1010 is fixedly connected with a fixed column 1011. The outer side of the fixed column 1011 is fixedly connected to the outer side of the upper shell 6. A guide rod 1012 is fixedly connected to the outer side of the upper shell 6. The fixed column 1011 and the guide rod 1012 are arranged adjacent to each other.

[0033] Specifically, when the upper shell 6 is driven by the electric push rod 5 to move upward, the fixed column 1011 synchronously pulls the connecting strip 1010 wound around the mounting column 109, and converts the linear motion into the rotational motion of the rotating rod 101 through friction, thereby driving the ejector rod assembly 10 to complete the ejection action.

[0034] Please refer to the appendix Figure 7 and the appendix Figure 8, the buckle assembly 11 includes a housing 111, the outside of the housing 111 is slidably connected inside the cover plate 8 and the lower housing 2, a sliding column 112 is slidably connected inside the housing 111, one end of the sliding column 112 is fixedly connected with a grip 113, and the other end of the sliding column 112 is fixedly connected with a sliding plate 114; a connecting column 115 is rotatably connected inside one side of the housing 111, a clamping plate 116 is fixedly connected to the outside of the connecting column 115, a connecting rope 117 is fixedly connected to the outside of the clamping plate 116, and the other end of the connecting rope 117 is fixedly connected to the outside of the sliding plate 114; a spring 118 is arranged on the outer wall of the clamping plate 116, the other end of the spring 118 is arranged inside the housing 111, and the spring 118 is used to push the clamping plate 116 to reset and engage.

[0035] Specifically, when pulling the grip 113, the sliding column 112 drives the sliding plate 114 to pull the clamping plate 116 to rotate around the connecting column 115 through the connecting rope 117 to unlock and disengage from the card slot of the lower housing 2. At this time, the spring 118 is compressed and stores energy. The buckle assembly 11 is pulled out to complete the disassembly. When the cover plate 8 and the lower housing 2 need to be installed, the buckle assembly 11 is inserted into the lower housing 2 through the cover plate 8. After releasing the grip 113, the spring 118 releases its potential energy to push the clamping plate 116 to reset, and its serrated locking surface forms a 60° wedging angle with the card slot to achieve self-locking.

[0036] Please refer to the appendix Figure 1 and the appendix Figure 2 , the number of the support columns 4 is at least two, symmetrically distributed on the upper surface of the support plate 3, and is used to stabilize the sliding track of the upper housing 6; the buckle assembly 11 corresponds to the position of the hole 9.

[0037] Specifically, the support column 4 adopts a symmetric double-column constraint model. Through the symmetric layout of the two support columns 4 on the support plate 3, a double-rail constraint on the upper housing 6 is formed to ensure that it only retains one-way movement in the Y-axis direction. At the same time, the melt pressure borne by the upper housing 6 during injection molding is evenly transmitted to the support column 4, effectively solving the problems of the upper housing 6 tilting caused by eccentric load and flash defects caused by poor fitting of the parting surface in the traditional single-column structure. The hole 9 is used to support the sliding of the buckle assembly 11.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production mold for a lampshade toroidal component, including a support rod (1), characterized in that, A lower layer of the support rod (1) is fixedly connected to an outer layer of a lower shell (2). The outer layer of the lower shell (2) is fixedly connected to a support plate (3). The upper surface of the support plate (3) is fixedly connected to a support column (4). The inner top wall of the support rod (1) is fixedly connected to an electric push rod (5). The output end of the electric push rod (5) is connected to an upper shell (6). An injection port (7) is formed inside the upper shell (6). Both sides of the upper shell (6) are slidably connected to the outside of the support column (4). A cover plate (8) is arranged outside the lower shell (2). A hole (9) is formed inside the lower shell (2). A top rod assembly (10) is arranged on the lower shell (2). A buckle assembly (11) is slidably connected inside the cover plate (8). The cover plate (8) is fixedly connected to the outside of the lower shell (2) through the buckle assembly (11).

2. The production mold of a lamp shade toroidal surface component according to claim 1, characterized in that, The top rod assembly (10) includes a rotating rod (101). A gear (102) is fixedly connected to an outer side of the rotating rod (101). Both the rotating rod (101) and the gear (102) are rotatably connected inside the cover plate (8). The tooth end of the gear (102) is meshed with a rack (103). The outside of the rack (103) is slidably connected inside the cover plate (8). The top end of the rack (103) is fixedly connected to a top plate (104). The outside of the top plate (104) is arranged inside the cover plate (8).

3. A production mold for a lamp cover toroidal component according to claim 2, characterized in that, A spring (105) and a ratchet (106) are fixedly connected to the other outer side of the rotating rod (101). The fixed end of the spring (105) is fixedly connected to the outside of the ratchet (106). The tooth end of the ratchet (106) is meshed with a ratchet tooth (107). A dial (108) is fixedly connected to the outside of the ratchet tooth (107).

4. A production mold for a lamp cover toroidal component according to claim 3, characterized in that, An installation column (109) is fixedly connected to an outer wall of one end of the rotating rod (101). A connecting strip (1010) is arranged outside the installation column (109). The connecting strip (1010) is wound around the installation column (109). The top end of the connecting strip (1010) is fixedly connected to a fixed column (1011). The outside of the fixed column (1011) is fixedly connected to the outside of the upper shell (6).

5. A production mold for a lamp cover toroidal component according to claim 4, characterized in that, A guide rod (1012) is fixedly connected to the outside of the upper shell (6). The fixed column (1011) and the guide rod (1012) are arranged adjacent to each other.

6. The production mold for a lamp cover toroidal surface component according to claim 1, characterized in that, The buckle assembly (11) includes a housing (111). The outside of the housing (111) is slidably connected inside the cover plate (8) and the lower shell (2). A sliding column (112) is slidably connected inside the housing (111). A grip (113) is fixedly connected to one end of the sliding column (112). A sliding plate (114) is fixedly connected to the other end of the sliding column (112).

7. A production mold for a lamp shade toroidal surface assembly according to claim 6, characterized in that, One side inside of the said outer shell (111) is rotationally connected with a connecting column (115). A clamping plate (116) is fixedly connected to the outside of the connecting column (115). A connecting rope (117) is fixedly connected to the outside of the clamping plate (116). The other end of the connecting rope (117) is fixedly connected to the outside of the sliding plate (114).

8. A production mold for a lamp cover toroidal surface assembly according to claim 7, characterized in that, A spring (118) is arranged on the outer wall of the clamping plate (116). The other end of the spring (118) is arranged inside the outer shell (111). The spring (118) is used to push the clamping plate (116) to reset and engage.

9. A production mold for a lamp cover toroidal component according to claim 1, characterized in that, The number of the support columns (4) is at least two, symmetrically distributed on the upper surface of the support plate (3), and is used to stabilize the sliding track of the upper shell (6).

10. The production mold of a lamp cover toroidal surface component according to claim 1, characterized in that The buckle assembly (11) corresponds to the position of the hole (9).

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