Small-space swing rod pitched roof structure and method

Abstract

The invention relates to a small-space swing rod pitched roof structure and method.The small-space swing rod pitched roof structure comprises a mold core, the top face of the mold core comprises a glue sealing face and a forming face, two forming inserts are arranged on the mold core in a sliding mode, the two forming inserts extend to the glue sealing face, jacking swing rods are arranged at the bottom ends of the two forming inserts, two mold core grooves are formed in the glue sealing face, and the two mold core grooves are matched with the jacking swing rods. A reset ejector block is slidably arranged in the mold core groove, the side wall, away from the corresponding forming insert, of the mold core groove is a guide inclined face, an ejector block inclined face coplanar with the guide inclined face is arranged on the reset ejector block, an extension block is arranged at the top end of the reset ejector block, and a sliding rod is slidably arranged at the bottom end of the extension block in a limiting mode. The reset ejector blocks are matched with the guide inclined planes through the ejector block inclined planes to enable the two reset ejector blocks to move downwards and move relatively in the horizontal direction at the same time, so that the two corresponding forming inserts are drawn close to each other through the two reset ejector blocks, resetting of the forming inserts is completed, and the reset mechanism is simple in structure, small in occupied mold space, high in applicability, convenient to disassemble and assemble and low in manufacturing cost.

Description

Technical Field

[0001] The invention relates to the field of injection molds, and more specifically to a small-space swing rod inclined top structure and method. Background Art

[0002] At present, for plastic products with threaded column structures that form undercuts, the mold generally adopts a slider structure so that when the mold is opened, the slider drives the mold cores of the molded threaded column to move away from each other, thereby facilitating the ejection and demoulding of the product. However, in order to prevent the product from sticking to the front mold and to place the threaded column in the rear mold, the slider structure is often not adopted. In this case, the insert is driven by a motor to rotate to separate the insert from the threaded column, and then the product can be ejected for demoulding. However, the injection mold that adopts the rotary demoulding of the motor and the slider structure occupies a large mold space and is costly. Summary of the invention

[0003] In view of the above-mentioned defects of the prior art, a small-space rocker inclined roof structure is provided.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a small space rocker inclined top structure, including a mold core, the top surface of the mold core includes a sealing surface and a molding surface, the mold core is slidably provided with two molding inserts that cooperate with each other to form threaded columns, the two molding inserts are extended to the sealing surface, the two molding inserts are arranged oppositely, and the bottom ends of the two molding inserts are provided with a lifting rocker, and the two lifting rockers drive the two molding inserts away from each other when lifting the molding inserts, and two mold core grooves are arranged on the sealing surface, and the two mold core grooves are correspondingly located at the two molding At one end of the inserts away from each other, a reset top block abutting against the corresponding molding insert is slidably provided in the mold core groove, the side wall of the mold core groove away from the corresponding molding insert is a guide slope, and the guide slope is inclined from the bottom of the mold core groove to the side of the top of the mold core groove away from the molding insert, and the reset top block is provided with a top block slope coplanar with the guide slope, and the top of the reset top block is provided with an extension block extending to the side away from the corresponding molding insert, and the bottom end of the extension block is limitedly slidably provided with a sliding rod for driving the extension block to rise and fall, and the sliding rod slides back and forth along the extension direction of the extension block.

[0005] Preferably, the mold core is provided with two vertical mold core cavities, the molding insert is slidably arranged in the corresponding mold core cavity, the upper end of the lifting rocker arm is also located in the corresponding mold core cavity, the lifting rocker arm is located on the side of the bottom surface of the molding insert away from the corresponding mold core groove, and a rocker arm slope is provided on the side wall of the lifting rocker arm away from the corresponding mold core groove, the rocker arm slope is inclined from the bottom to the top close to the corresponding mold core groove, and a cavity slope parallel to and spaced apart from the rocker arm slope is provided in the mold core cavity.

[0006] Preferably, the distance from the highest point of the rocker arm slope to the highest point of the cavity slope is greater than the height of the molding insert, the vertical height of the top block slope of the reset top block is also greater than the height of the molding insert, and the vertical height of the top block slope of the reset top block is also greater than the distance from the lowest point of the rocker arm slope to the highest point of the cavity slope.

[0007] Preferably, the shortest distance from the side wall of the mold core groove on the mold core cavity to the corresponding lifting rocker arm is not less than the horizontal distance from the highest point of the rocker arm inclined surface to the lowest point of the rocker arm inclined surface.

[0008] Preferably, a first slide groove with a T-shaped structure is arranged on the bottom surface of the extension block, a first slide block with a T-shaped structure is matched and slidably arranged in the first slide groove, and the top end of the slide rod is connected to the first slide block.

[0009] Preferably, one end of the first slide groove away from the corresponding molding insert is an open structure, and the extension block is provided with a stopper for blocking the opening of the first slide groove.

[0010] Preferably, a top rod is provided at the bottom end of the lifting rocker arm, a second slide groove with a T-shaped structure is provided at the bottom end of the lifting rocker arm, a second slider with a T-shaped structure is matched and slidably provided in the second slide groove, and the top end of the top rod is connected to the second slider.

[0011] A small space swing rod inclined top method, the method comprising the following steps:

[0012] S101, after the mold forms the product, the two lifting rocker rods lift the corresponding molding inserts, and at the same time, the two lifting rocker rods drive the corresponding two molding inserts to move away from each other. At this time, the two slide bars drive the corresponding reset top blocks to move upward synchronously through the extension blocks, and the molding insert drives the reset top block to move. At this time, the slide bars slide relatively along the corresponding extension blocks.

[0013] S102, when the two molding inserts move away from each other and are separated from the threads of the threaded column of the product, the mold ejects the product and demolds it.

[0014] S103, after the product is ejected and demolded, the two lifting rocker rods drive the corresponding molding inserts to descend, and at the same time, the sliding rod drives the corresponding reset top block to descend synchronously. At this time, the two reset top blocks approach each other with the cooperation of the top block inclined surface and the guide inclined surface, and the two reset top blocks drive the corresponding two molding inserts to approach each other, thereby completing the reset of the molding insert.

[0015] The beneficial effects of the present invention are: the lifting rocker lifts the forming insert, and at this time the slide bar synchronously lifts the reset top block through the extension block, and at the same time the lifting rocker drives the two forming inserts away from each other, thereby facilitating the ejection and demolding of the product, and the forming insert simultaneously drives the corresponding reset top blocks to slide to both sides. After the product is ejected, the lifting rocker drives the forming insert to move downward, and the slide bar drives the reset top block to move downward. At this time, the reset top block cooperates with the guide inclined surface through the top block inclined surface so that the two reset top blocks move downward and move relative to each other in the horizontal direction, so that the two reset top blocks drive the corresponding two forming inserts to move closer to each other, completing the reset of the forming insert. The present invention has a simple structure, occupies very little mold space, has strong applicability, is easy to disassemble and assemble, and has a low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic cross-sectional structural diagram of an embodiment of the present invention;

[0017] Figure 2 Embodiment of the present invention Figure 1 A magnified schematic diagram of the middle A area;

[0018] Figure 3 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0019] Figure 4 Embodiment of the present invention Figure 3 A magnified schematic diagram of the middle B area;

[0020] Figure 5 2 is a schematic diagram of the mold core structure of an embodiment of the present invention;

[0021] Figure 6 2 is a schematic diagram of the structure of the resetting top block and the extension block according to an embodiment of the present invention;

[0022] Figure 7 It is a partial structural schematic diagram of a product of an embodiment of the present invention.

[0023] Figure numerals: 1 mold core, 10 sealing surface, 11 molding surface, 12 mold core groove, 13 guide slope, 2 molding insert, 3 lifting rocker arm, 30 rocker arm slope, 31 second slide groove, 4 reset ejector block, 40 ejector block slope, 5 extension block, 50 first slide groove, 51 stopper, 6 slide rod, 60 first slide block, 7 mold core cavity, 70 cavity slope, 8 ejector rod, 80 second slide block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be clearly and completely described in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention. In addition, the directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", etc., are only referenced to the directions of the attached diagrams. The directional terms used are for better and clearer explanation and understanding of the present invention, rather than indicating or implying the orientation that the present invention must have, and therefore cannot be understood as limitations on the present invention.

[0025] Embodiments of the present invention Figures 1 to 7 As shown in, a small space rocker inclined top structure includes a mold core 1, the top surface of the mold core 1 includes a sealing surface 10 and a molding surface 11, the sealing surface 10 prevents the molten plastic from flowing out of the mold cavity, and the molding surface 11 is used to mold products, the mold core 1 is slidably provided with two molding inserts 2 that cooperate with each other to form threaded columns, the two molding inserts 2 both extend to the sealing surface 10, the two molding inserts 2 are arranged opposite to each other, the two molding inserts 2 are arranged opposite to each other in the left and right directions, and the bottom ends of the two molding inserts 2 are provided with lifting rocker rods 3, when the two lifting rocker rods 3 lift the molding inserts 2, the two molding inserts 2 are driven away from each other, that is, when the two lifting rocker rods 3 lift the molding inserts 2, the two molding inserts 2 are driven to move left and right accordingly, and the sealing surface 10 is provided with two mold core grooves 12, the two mold core grooves 12 are correspondingly located at one end of the two molding inserts 2 that are away from each other, that is, the two mold core grooves 12 are correspondingly located at the left end of the molding insert 2 on the left and the molding insert on the right. 2, a reset top block 4 is slidably provided in the mold core groove 12 and abutted against the corresponding molding insert 2, and the side wall of the mold core groove 12 away from the corresponding molding insert 2 is a guide slope 13, that is, the left side wall of the mold core groove 12 on the left side is a guide slope 13, and the right side wall of the mold core groove 12 on the right side is also a guide slope 13, and the guide slope 13 is inclined from the bottom of the mold core groove 12 to the side of the top of the mold core groove 12 away from the molding insert 2, and the reset top block 4 is provided with a The top block inclined surface 40 is coplanar with the guide inclined surface 13, and the top of the reset top block 4 is provided with an extension block 5 extending away from the corresponding molding insert 2. The sealing surface 10 of the mold core 1 is provided with an avoidance gap for avoiding the extension block 5. The extension block 5 is located in the avoidance gap. Preferably, the top surface of the extension block 5 is coplanar with the sealing surface 10 of the mold core 1, and the bottom end of the extension block 5 is limitedly slidingly provided with a slide rod 6 for driving the extension block 5 to rise and fall, and the slide rod 6 slides back and forth along the extension direction of the extension block 5.

[0026] The lifting rocker arm 3 lifts the molding insert 2, and at this time, the slide bar 6 synchronously lifts the reset top block 4 through the extension block 5. At the same time, the lifting rocker arm 3 drives the two molding inserts 2 to move away from each other, that is, the two molding inserts 2 move to the left and right sides respectively, and the molding inserts 2 are separated from the threads of the threaded column on the product, thereby facilitating the ejection and demolding of the product. The molding insert 2 simultaneously drives the corresponding reset top block 4 to slide to both sides. After the product is ejected, the lifting rocker arm 3 drives the molding insert 2 to move downward, and the slide bar 6 drives the reset top block 4 to move downward. At this time, the reset top block 4 cooperates with the guide inclined surface 13 through the top block inclined surface 40 so that the two reset top blocks 4 move downward while moving relative to each other in the horizontal direction, so that the two reset top blocks 4 bring the corresponding two molding inserts 2 closer to each other, completing the reset of the molding insert 2. The structure is simple, occupies very little mold space, has strong applicability, is easy to disassemble and assemble, and has low manufacturing cost.

[0027] Further improvements, such as Figure 1 and Figure 5 As shown in , the mold core 1 is provided with two vertical mold core cavities 7, the molding insert 2 is matched and slidably arranged in the corresponding mold core cavity 7, the upper end of the lifting swing rod 3 is also located in the corresponding mold core cavity 7, and the lifting swing rod 3 is located on the side of the bottom surface of the molding insert 2 away from the corresponding mold core groove 12, that is, the lifting swing rod 3 on the left side is located on the right side of the bottom surface of the molding insert 2 on the left side, and the lifting swing rod 3 on the right side is located on the left side of the bottom surface of the molding insert 2 on the right side. The side wall of the lifting swing rod 3 away from the corresponding mold core groove 12 is provided with a swing rod inclined surface 30, and the swing rod inclined surface 30 is from The side that is inclined toward the upper side and close to the corresponding mold core groove 12 is inclined, that is, a rocker arm slope 30 is provided on the left side wall of the right lifting rocker arm 3, and at this time, the rocker arm slope 30 is inclined from the lower left to the upper right, and a rocker arm slope 30 is provided on the right side wall of the left lifting rocker arm 3, and at this time, the rocker arm slope 30 is inclined from the lower right to the upper left, and a cavity slope 70 parallel to and spaced from the rocker arm slope 30 is provided in the mold core cavity 12, that is, a cavity slope 70 is provided on the left inner wall of the mold core cavity 7 on the right, and a cavity slope 70 is also provided on the right inner wall of the mold core cavity 7 on the left.

[0028] Further improvements, such as Figure 1As shown in the figure, the distance from the highest point of the swing arm inclined surface 30 to the highest point of the cavity inclined surface 70 is greater than the height of the molding insert 2, so that the molding insert 2 can be completely lifted out of the corresponding mold core cavity and then moved horizontally, and the mold core 1 will not interfere with the horizontal movement of the molding insert 2. The vertical height of the top block inclined surface 40 of the reset top block 4 is also greater than the height of the molding insert 2. The vertical height of the top block inclined surface 40 of the reset top block 4 is also greater than the distance from the lowest point of the swing arm inclined surface 30 to the highest point of the cavity inclined surface 70. This allows the reset top block 4 to first cooperate with the guide through the top block inclined surface 40 when the molding insert 2 is reset. The inclined surface 13 moves horizontally, so that the reset top block 4 can first reset the molding insert 2 horizontally, so that the molding insert 2 will not contact the sealing surface 10 of the mold core 1, and avoid the wear of the sealing surface 10 to cause leakage and form burrs. The shortest distance from the side wall of the mold core groove 12 on the mold core cavity 7 to the corresponding lifting rocker 3 is not less than the horizontal distance from the highest point of the rocker inclined surface 30 to the lowest point of the rocker inclined surface 30, which ensures that the rocker inclined surface 30 cooperates with the cavity inclined surface 70 to make the molding insert 2 move horizontally a sufficient distance, thereby ensuring that the molding insert 2 is separated from the thread of the threaded column on the product after molding.

[0029] Further improvements such as Figure 1 , Figure 2 and Figure 6 As shown in the figure, a first slide groove 50 with a T-shaped structure is arranged on the bottom surface of the extension block 5, and the first slide groove 50 extends in the left and right directions. A first slider 60 with a T-shaped structure is matched and slidably arranged in the first slide groove 50, and the top end of the slide rod 6 is connected to the first slider 60, and the slide rod 6 and the first slider 60 are integrally formed. When the slide rod 6 lifts or pulls down the extension block 5, it does not affect the left and right movement of the extension block 5.

[0030] Further improvements such as Figure 1 and Figure 2 As shown in the figure, the end of the first slide groove 50 away from the corresponding molding insert 2 is an open structure, and the extension block 5 is provided with a stopper 51 that blocks the opening of the first slide groove 50. Preferably, the stopper 51 and the extension block 5 are detachably connected, and the stopper 51 and the extension block 5 can be connected by screws, so as to facilitate the installation of the integrally formed slide rod 6 and the first slider 60, and the stopper 51 prevents the slide rod 6 from sliding out of the first slide groove 50.

[0031] Further improvements such as Figure 3 and Figure 4 As shown in the figure, a top rod 8 is provided at the bottom end of the lifting rocker arm 3, and a second slide groove 31 with a T-shaped structure is provided at the bottom end of the lifting rocker arm 3. A second slider 80 with a T-shaped structure is matched and slidably provided in the second slide groove 31. The top end of the top rod 8 is connected to the second slider 80, and the top rod 8 and the second slider 80 are integrally formed. This allows the top rod 8 to lift or pull down the lifting rocker arm 3 without affecting the left and right movement of the lifting rocker arm 3.

[0032] A small space swing rod inclined top method, the method comprising the following steps:

[0033] S101, after the mold forms the product, the two lifting rocker rods 3 lift the corresponding molding inserts 2, and at the same time, the two lifting rocker rods 3 drive the corresponding two molding inserts 2 to move away from each other. At this time, the two slide bars 6 drive the corresponding reset top blocks 4 to move upward synchronously through the extension blocks 5, and the molding inserts 2 drive the corresponding reset top blocks 4 to move. At this time, the slide bars 6 slide relatively along the corresponding extension blocks 5.

[0034] S102, when the two molding inserts 2 move away from each other and are separated from the threads of the threaded column of the product, the mold ejects the product and demolds it.

[0035] S103, after the product is ejected and demolded, the two lifting rocker arms 3 drive the corresponding molding inserts 2 to descend, and at the same time, the slide rod 3 drives the corresponding reset top block 1 to descend synchronously. At this time, the two reset top blocks 4 approach each other with the cooperation of the top block inclined surface 40 and the guide inclined surface 13, and the two reset top blocks 4 drive the corresponding two molding inserts 2 to approach each other, thereby completing the reset of the molding insert 2.

[0036] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A small space swing rod inclined roof structure, including a mold core; characterized in that: The top surface of the mold core includes a sealing surface and a molding surface; two molding inserts that cooperate with each other to form threaded columns are slidably arranged on the mold core; the two molding inserts both extend to the sealing surface; the two molding inserts are arranged oppositely; the bottom ends of the two molding inserts are both provided with a lifting swing rod; when the two lifting swing rods lift the molding inserts, the two molding inserts are driven away from each other; two mold core grooves are arranged on the sealing surface; the two mold core grooves are correspondingly located at one end of the two molding inserts that are away from each other; a reset top block that abuts against the corresponding molding insert is slidably arranged in the mold core groove; the side wall of the mold core groove away from the corresponding molding insert is a guiding inclined surface; the guiding inclined surface is inclined from the bottom of the mold core groove to the side of the mold core groove top away from the molding insert; the reset top block is provided with a top block inclined surface coplanar with the guiding inclined surface; the top end of the reset top block is provided with an extension block extending to the side away from the corresponding molding insert; the bottom end of the extension block is limited and slidably provided with a sliding rod that drives the extension block to rise and fall; the sliding rod slides back and forth along the extension direction of the extension block.

2. A small space swing rod inclined roof structure according to claim 1, characterized in that: The mold core is provided with two vertical mold core cavities; the molding insert is slidingly arranged in the corresponding mold core cavity; the upper end of the lifting rocker is also located in the corresponding mold core cavity; the lifting rocker is located on the bottom surface of the molding insert on the side away from the corresponding mold core groove; a rocker slope is provided on the side wall of the lifting rocker away from the corresponding mold core groove; the rocker slope is inclined from the bottom to the top close to the corresponding mold core groove; a cavity slope is provided in the mold core cavity which is parallel to and spaced from the rocker slope.

3. The small space swing rod inclined roof structure according to claim 2, characterized in that: The distance from the highest point of the rocker arm slope to the highest point of the cavity slope is greater than the height of the molding insert; the vertical height of the top block slope of the reset top block is also greater than the height of the molding insert; the vertical height of the top block slope of the reset top block is also greater than the distance from the lowest point of the rocker arm slope to the highest point of the cavity slope.

4. The small space swing rod inclined roof structure according to claim 2, characterized in that: The shortest distance from the side wall of the mold core groove on the mold core cavity to the corresponding lifting swing rod is not less than the horizontal distance from the highest point of the swing rod inclined surface to the lowest point of the swing rod inclined surface.

5. The small space swing rod inclined roof structure according to claim 1, characterized in that: A first sliding groove with a T-shaped structure is arranged on the bottom surface of the extension block; a first sliding block with a T-shaped structure is matched and slidably arranged in the first sliding groove; and the top end of the sliding rod is connected to the first sliding block.

6. The small space swing rod inclined roof structure according to claim 5, characterized in that: One end of the first slide groove away from the corresponding molding insert is an open structure; and a stopper for blocking the opening of the first slide groove is arranged on the extension block.

7. The small space swing rod inclined roof structure according to claim 1, characterized in that: A top rod is arranged at the bottom end of the lifting swing rod; a second slide groove with a T-shaped structure is arranged at the bottom end of the lifting swing rod; a second slider with a T-shaped structure is matched and slidably arranged in the second slide groove; and the top end of the top rod is connected to the second slider.

8. A small space swing rod tilting method, based on a motor commutator spot welding device according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: S101, after the mold forms the product, the two lifting rocker rods lift the corresponding molding inserts, and at the same time, the two lifting rocker rods drive the corresponding two molding inserts to move away from each other. At this time, the two slide bars drive the corresponding reset top blocks to move upward synchronously through the extension blocks, and the molding insert drives the reset top block to move. At this time, the slide bars slide relatively along the corresponding extension blocks. S102, when the two molding inserts move away from each other and are separated from the threads of the threaded column of the product, the mold ejects the product and demolds it. S103, after the product is ejected and demolded, the two lifting rocker rods drive the corresponding molding inserts to descend, and at the same time, the sliding rod drives the corresponding reset top block to descend synchronously. At this time, the two reset top blocks approach each other with the cooperation of the top block inclined surface and the guide inclined surface, and the two reset top blocks drive the corresponding two molding inserts to approach each other, thereby completing the reset of the molding insert.

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