Rotary sliding block core-pulling mechanism for mold

Abstract

The rotary sliding block core-pulling mechanism comprises a lower mold frame, and a first composition frame is fixedly connected to the lower mold frame; the sliding block mechanism, the first component and the second component are all arranged on the lower die frame; during demolding, the sliding block mechanism moves to be separated from the injection molding drawer, and after the unlocking mechanism triggers the first component to move downwards, the unlocking mechanism continues to move and drives the second component to move to be separated from the injection molding drawer, so that demolding is achieved. Through the combination of the first composition frame, the first composition assembly and the second composition assembly, the drawer with the protruding position at the handheld position can be subjected to integrated forming type injection molding, and in the process that the sliding block mechanism moves the loose core, the unlocking mechanism drives the first composition assembly to move downwards and then pushes the second composition assembly to move horizontally to be separated from the protruding position of the drawer. The protruding drawer can be demolded conveniently, operation is easy and convenient, and the demolded drawer is good in holding feeling when used.

Description

[0001] This case is a divisional application. The application number of the original application is 2024109925425. The patent name is: A rotating slider core pulling mechanism for a refrigerator drawer hand mold. The original application date is July 23, 2024. The entire contents of the original application are incorporated into this application by reference. Technical Field

[0002] The invention relates to the technical field of refrigerator drawer handle moulds, and in particular to a rotary slider core-pulling mechanism of a refrigerator drawer handle mould. Background Art

[0003] The refrigerator drawer is an important storage space in the refrigerator. It has the function of preservation and freshness. It can effectively inhibit the growth and reproduction of bacteria through lower temperatures and maintain the freshness of food. The arc-shaped handles on the refrigerator drawer can facilitate the user to pull out the drawer.

[0004] For example, the Chinese utility model patent with application number: 202323072805.0, entitled "A conveniently lubricated refrigerator drawer injection mold", discloses a fixed mold base and a movable mold base, wherein the fixed mold base includes a top mold docked with the injection cavity, a side mold is slidably arranged on one side of the top mold, a core-pulling cavity is opened in the side mold near the top mold, a driving cavity is opened in the side mold away from the top mold, the core-pulling cavity is connected with the driving cavity, a rotating die head is rotatably arranged in the core-pulling cavity, a rack is slidably arranged in the driving cavity, a gear is rotatably arranged in the driving cavity, an oil cylinder is arranged on one side of the side mold, an oil injection hole connected to the driving cavity is opened on the outer side of the side mold, the outlet of the oil injection hole is located above the gear, and there are platforms on both sides of the outlet of the oil injection hole, a sliding column is arranged on the platform, an oil injection plate is sleeved on the sliding column, a spring is sleeved on the sliding column, an adjusting nut is threadedly connected to the top of the sliding column, an oil storage cavity is arranged in the oil injection plate, and an oil felt is fixed at the bottom of the oil storage cavity. Thus, the lubrication of the gear drive mechanism at the rotating die head is more convenient and quick.

[0005] The shortcomings of the prior art are: in order to improve the gripping feeling of the refrigerator drawer, the curvature of the drawer handle can be increased. Since the refrigerator drawer is relatively thin, the drawer handle will be raised inside the drawer, and the raised part will affect the demolding of the one-piece drawer. For this type of refrigerator drawer, split injection molding is mostly used, and then it is spliced and combined for molding, which is very troublesome to operate and has certain shortcomings. Summary of the invention

[0006] The object of the present invention is to provide a rotating slider core-pulling mechanism for a refrigerator drawer hand mold to solve the above-mentioned deficiencies in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solution: A rotary slider core-pulling mechanism for a refrigerator drawer hand mold, including a lower mold frame, and a first component frame is fixedly connected to the lower mold frame; further including a slider mechanism, a first component assembly, and a second component assembly, all of which are arranged on the lower mold frame; during demolding, the slider mechanism moves to separate from the injection-molded drawer. After the unlocking mechanism triggers the downward movement of the first component assembly, the unlocking mechanism continues to move and drives the second component assembly to move and separate from the injection-molded drawer to achieve demolding; the slider mechanism includes a moving frame and a long strip block slidably connected to the lower mold frame. An arc-shaped block is rotatably connected in the moving frame through a rotating rod. A protruding component is arranged in the arc-shaped block. The arc-shaped block is rotatably connected to the long strip block through a rotating plate. A connecting spring is fixedly connected between the moving frame and the lower mold frame. Abutted components are also arranged on both sides of the arc-shaped block.

[0008] As a further description of the above technical solution: The first component assembly includes a second component frame slidably connected in the lower mold frame. A vertical plate and two connecting plates are fixedly connected in the second component frame; two fixing blocks are fixedly connected in the lower mold frame. A first elastic telescopic rod is fixedly connected between each of the two fixing blocks and the corresponding connecting plate. A driving groove is formed in the vertical plate. A first clamping unit for fixing the corresponding connecting plate is arranged on each of the two fixing blocks.

[0009] As a further description of the above technical solution: The first clamping unit includes a clamping rod and a side rod slidably connected in the fixing block. A linkage bar is rotatably connected between the clamping rod and the side rod; one end of the side rod is fixedly connected with a first wedge-shaped block. A first spring is fixedly connected between the first wedge-shaped block and the fixing block. The elastic force of the first spring drives the clamping rod to be in clamping cooperation with the connecting plate.

[0010] As a further description of the above technical solution: The second component assembly includes a third component frame slidably connected in the lower mold frame. Two limiting rods are fixedly connected to the third component frame; two supporting blocks are fixedly connected in the first component frame. Both of the two limiting rods slidably penetrate through the corresponding supporting blocks and are fixedly connected with the same baffle plate. A return spring is fixedly connected between the baffle plate and each of the two supporting blocks. A limiting unit is arranged on each of the two supporting blocks.

[0011] As a further description of the above technical solution: The limiting unit includes a horizontal plate fixedly connected to the support block, and an inclined surface stopper is slidably connected to the horizontal plate; an inclined tooth is fixedly connected to the limiting rod, a bottom plate is fixedly connected to the bottom end of the inclined surface stopper, a second spring is fixedly connected between the bottom plate and the horizontal plate, and the elastic force of the second spring drives the inclined surface stopper to be engaged with the inclined tooth, and a second wedge-shaped block is also fixedly connected to the bottom plate.

[0012] As a further description of the above technical solution: The unlocking mechanism includes an unlocking plate slidably connected in the lower die frame, an inclined surface block and two wedge-shaped unlocking blocks are fixedly connected to the unlocking plate; a pushing plate is fixedly connected to each of the two wedge-shaped unlocking blocks, and the unlocking plate is connected to the long strip through a transmission component.

[0013] As a further description of the above technical solution: The transmission component includes an auxiliary plate fixedly connected to the long strip, and a cross frame is arranged between the auxiliary plate and the unlocking plate.

[0014] As a further description of the above technical solution: The convex component includes a special-shaped block slidably connected in the arc-shaped block, and a first metal block is fixedly connected to the special-shaped block; a first electromagnet is fixedly connected in the arc-shaped block, a second elastic telescopic rod is arranged between the arc-shaped block and the special-shaped block, and a positioning unit for fixing the special-shaped block is also arranged in the arc-shaped block.

[0015] As a further description of the above technical solution: The positioning unit includes a second electromagnet fixedly connected in the arc-shaped block; a second metal block is slidably connected in the arc-shaped block, a positioning rod is fixedly connected to the second metal block, and an abutting spring is fixedly connected between the second metal block and the arc-shaped block, and the elastic force of the abutting spring drives the positioning rod to be engaged with the special-shaped block.

[0016] As a further description of the above technical solution: The abutting component includes a single-sided inclined block slidably connected to the arc-shaped block; a third spring is fixedly connected between the single-sided inclined block and the arc-shaped block, and a single-sided inclined groove is formed in the moving frame.

[0017] In the above technical solution, the beneficial effects of a rotary slider core-pulling mechanism of a refrigerator drawer hand mold provided by the present invention are as follows: Through the mutual cooperation among the lower mold frame, the first component frame, the slider mechanism, the first component assembly, the second component assembly and the unlocking mechanism, the first component frame, the first component assembly and the second component assembly are combined to integrally mold the drawer with a protruding grip part, improving the molding method of the traditional refrigerator drawer with a protruding part, reducing its manufacturing steps. When the slider mechanism moves to extract the core, after the unlocking mechanism drives the first component assembly to move downward, it then pushes the second component assembly to translate and separate from the protruding part of the drawer, facilitating the demolding of the protruding drawer. The operation is simple and convenient, and the drawer after demolding has a good grip when in use.

[0018] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory, and are not intended to limit the present disclosure. This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0020] Figure 1 Schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 Schematic diagram of the connection of the slider mechanism, the first component assembly, the second component assembly and the unlocking mechanism provided by an embodiment of the present invention; Figure 3 Exploded view of the slider mechanism, the first component assembly, the second component assembly and the unlocking mechanism provided by an embodiment of the present invention; Figure 4 Exploded view of the structure of the first component assembly and the second component assembly provided by an embodiment of the present invention; Figure 5 Longitudinal sectional view of the structure of the slider mechanism provided by an embodiment of the present invention; Figure 6 Cross-sectional view of the structure of the arc-shaped block provided by an embodiment of the present invention; Figure 7 Longitudinal sectional view of the partial structure provided by an embodiment of the present invention; Figure 8 Cross-sectional view of the partial structure provided by an embodiment of the present invention; Figure 9 Schematic diagram of the structure of the wedge-shaped unlocking block provided by an embodiment of the present invention; Figure 10is Figure 3 an enlarged view of part A in Figure 11 is Figure 5 an enlarged view of part B in Figure 12 is Figure 7 an enlarged view of part C in Figure 13 is Figure 8 an enlarged view of part D in Figure 14 a schematic structural view of an injection - molded refrigerator drawer provided by an embodiment of the present invention.

[0021] Explanation of reference numerals: 1. Lower mold frame; 11. First component frame; 21. Moving frame; 22. Long strip; 23. Rotating rod; 24. Arc block; 25. Rotating plate; 26. Connecting spring; 31. Second component frame; 32. Vertical plate; 33. Connecting plate; 34. Fixed block; 35. First elastic telescopic rod; 36. Driving groove; 41. Clamping rod; 42. Side rod; 43. Linking bar; 44. First wedge block; 45. First spring; 51. Third component frame; 52. Limiting rod; 53. Support block; 54. Baffle; 55. Reset spring; 61. Horizontal plate; 62. Inclined surface baffle; 63. Inclined tooth; 64. Bottom plate; 65. Second spring; 66. Second wedge block; 71. Unlocking plate; 72. Inclined surface block; 73. Wedge - shaped unlocking block; 74. Pushing plate; 81. Auxiliary plate; 82. Cross - frame; 91. Special - shaped block; 92. First metal block; 93. First electromagnet; 94. Second elastic telescopic rod; 101. Second electromagnet; 102. Second metal block; 103. Positioning rod; 104. Abutting spring; 111. Single - side inclined block; 112. Third spring; 113. Single - side inclined groove. Detailed implementation manners

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0023] Please refer to Figures 1-14, a rotary slider core-pulling mechanism of a refrigerator drawer hand mold provided in this embodiment includes a lower mold frame 1. The lower mold frame 1 is an existing device and will not be elaborated here. A first component frame 11 is fixedly connected to the lower mold frame 1. One side of the first component frame 11 can be set to be inclined or flat, and its specific shape can be set according to the shape of the refrigerator drawer to be injection-molded. It also includes a slider mechanism, a first component assembly, and a second component assembly, all of which are arranged on the lower mold frame 1. The slider mechanism is arranged at the hand-holding part of the refrigerator drawer. The first component frame 11, the first component assembly, and the second component assembly can form a complete inner lining layer of the refrigerator drawer. Among them, the first component assembly is arranged between the first component frame 11 and the second component assembly. During demolding, the slider mechanism moves to separate from the injection-molded drawer. After the unlocking mechanism triggers the first component assembly to move downward, the unlocking mechanism continues to move and drives the second component assembly to move and separate from the injection-molded drawer to achieve demolding. When the first component assembly moves downward, it can provide space for the lateral movement of the second component assembly. And the second component assembly is arranged at the convex part of the refrigerator drawer. By the lateral movement of the second component assembly, its convex part can be separated, facilitating the direct demolding of the formed refrigerator drawer. The setting of this solution can effectively improve the molding method of the convex part of the refrigerator drawer, and the operation is simple and convenient. The slider mechanism includes a moving frame 21 and a long strip 22 slidably connected to the lower mold frame 1. The lower mold frame 1 is provided with movement grooves for the moving frame 21 and the long strip frame. An arc-shaped block 24 is rotatably connected to the moving frame 21 through a rotating rod 23. A convex component is arranged in the arc-shaped block 24. The arc-shaped block 24 is rotatably connected to the long strip 22 through a rotating plate 25. A connecting spring 26 is fixedly connected between the moving frame 21 and the lower mold frame 1. Abuttment components are also arranged on both sides of the arc-shaped block 24.

[0024] In a further embodiment provided by the present invention, the first component assembly includes a second component frame 31 slidably connected to the lower mold frame 1. A vertical plate 32 and two connecting plates 33 are fixedly connected in the second component frame 31. The second component frame 31 is set in an inverted U shape. The vertical plate 32 is arranged at the central position inside the second component frame 31. The two connecting plates 33 are respectively arranged on both sides of the vertical plate 32. Two fixing blocks 34 are fixedly connected in the lower mold frame 1. A first elastic telescopic rod 35 is fixedly connected between each of the two fixing blocks 34 and the corresponding connecting plate 33. By setting the first elastic telescopic rod 35, the connecting plate 33 can be controlled to drive the second component frame 31 to move vertically. A driving groove 36 is opened in the vertical plate 32. The driving groove 36 is set as an inclined through groove, and its specific shape can be referred to in the attached Figure 3 drawings. First clamping units for fixing the corresponding connecting plates 33 are arranged on both of the two fixing blocks 34. By setting the first clamping units, the stability of the second component frame 31 can be improved, so that the second component frame 31 and the first component frame 11 are fixed and kept on the same plane, and the second component frame 31 slides on one side of the first component frame 11.

[0025] Further, the first clamping unit includes a clamping rod 41 and a side rod 42 that are slidably connected in the fixed block 34. A linkage bar 43 is rotatably connected between the clamping rod 41 and the side rod 42. A groove for the movement of the clamping rod 41 and the side rod 42 is provided in the fixed block 34, and the clamping rod 41 and the side rod 42 are distributed relatively perpendicularly. When the side rod 42 is forced to move towards the fixed block 34, the clamping rod 41 can be driven by the linkage bar 43 to contract synchronously into the fixed block 34. One end of the side rod 42 is fixedly connected with a first wedge-shaped block 44. A first spring 45 is fixedly connected between the first wedge-shaped block 44 and the fixed block 34. The elastic force of the first spring 45 drives the clamping rod 41 to be in clamping cooperation with the connecting plate 33. A hole adapted to the clamping rod 41 can be formed in the connecting plate 33, which is convenient for increasing the connection between the clamping rod 41 and the connecting plate 33 and further improving the stability of the second component frame 31.

[0026] In the embodiment further provided by the present invention, the second component assembly includes a third component frame 51 that is slidably connected in the lower mold frame 1. The length of the third component frame 51 is greater than the length of the second component frame 31, and the part of the third component frame 51 inside the lower mold frame 1 is wider, and a groove is formed in its wider part, and this groove is adapted to the second component frame 31. The second component frame 31 is arranged between the first component frame 11 and the second component frame 31. When the second component frame 31 is completely retracted into the lower mold frame 1, the third component frame 51 moves towards the second component frame 31 side and wraps the second component frame 31. And the third component frame 51 is in contact with the convex side of the refrigerator drawer. By the lateral movement of the third component frame 51, it can be separated from the convex part of the refrigerator drawer, avoiding the third component frame 51 blocking it when the refrigerator drawer is demolded upwards, which affects its demolding effect. Two limiting rods 52 are fixedly connected to the third component frame 51; two supporting blocks 53 are fixedly connected in the first component frame 11. Both limiting rods 52 slidably penetrate through the corresponding supporting blocks 53 and are fixedly connected to the same baffle 54. A return spring 55 is fixedly connected between the baffle 54 and both supporting blocks 53. A hole for the movement of the limiting rod 52 is provided in the supporting block 53, and the elastic force of the return spring 55 drives the baffle 54 to approach the supporting block 53. Limiting units are provided on both supporting blocks 53.

[0027] Further, the limiting unit includes a cross plate 61 fixedly connected to the support block 53, and an inclined surface stopper 62 is slidably connected to the cross plate 61; an inclined tooth 63 is fixedly connected to the limiting rod 52, a bottom plate 64 is fixedly connected to the bottom end of the inclined surface stopper 62, and a second spring 65 is fixedly connected between the bottom plate 64 and the cross plate 61. The elastic force of the second spring 65 drives the inclined surface stopper 62 to be engaged with the inclined tooth 63. The sides of the inclined surface stopper 62 and the inclined tooth 63 away from the baffle 54 are arranged in an inclined shape, and the other sides are arranged in a flat shape. By setting the inclined surface stopper 62 to be engaged with the inclined tooth 63, the movement of the limiting rod 52 can be restricted. A second wedge-shaped block 66 is also fixedly connected to the bottom plate 64.

[0028] In the embodiment provided by the present invention, the unlocking mechanism includes an unlocking plate 71 slidably connected in the lower die frame 1. An inclined surface block 72 and two wedge-shaped unlocking blocks 73 are fixedly connected to the unlocking plate 71; pushing plates 74 are fixedly connected to both wedge-shaped unlocking blocks 73. The unlocking plate 71 is connected to the long strip 22 through a transmission component. During the movement of the inclined surface block 72 along with the unlocking plate 71, it will enter the driving groove 36 in the vertical plate 32. When the unlocking plate 71 enters the driving groove 36, it will drive the vertical plate 32 to drive the second component frame 31 to move downward. The sides and the bottom of the two wedge-shaped unlocking blocks 73 facing away from each other are arranged in an inclined shape, and the specific shapes of the two wedge-shaped unlocking blocks 73 can be referred to in the attached Figure 9 When the unlocking plate 71 moves, it will first drive the wedge-shaped unlocking block 73 to move into contact with the first wedge-shaped block 44, and push the first wedge-shaped block 44 to move. Under the action of the side rod 42 and the linkage bar 43, it drives the clamping rod 41 to separate from the connecting plate 33. At this time, the inclined surface block 72 enters the driving groove 36 in the vertical plate 32 and drives the vertical plate 32 to drive the unlocked second component frame 31 to move downward; then the wedge-shaped unlocking block 73 continues to move into contact with the second wedge-shaped block 66. The second wedge-shaped block 66 is squeezed by the wedge-shaped unlocking block 73 and drives the inclined surface stopper 62 to move downward through the bottom plate 64 to separate from the inclined tooth 63. At this time, the pushing plate 74 arranged on the wedge-shaped unlocking block 73 will push the unlocked baffle 54 to move. Through the limiting rod 52, the third component frame 51 can be driven to move synchronously to separate from the formed refrigerator drawer. The pushing plate 74 is arranged in an L shape.

[0029] In a further solution provided by the present invention, the transmission component includes an auxiliary plate 81 fixedly connected to the long strip 22. A cross frame 82 is arranged between the auxiliary plate 81 and the unlocking plate 71. By arranging the cross frame 82 between the auxiliary plate 81 and the unlocking plate 71, when one side of the auxiliary plate 81 moves along with the long strip 22, it can drive the other side of the unlocking plate 71 to move in the opposite direction synchronously. The cross frame 82 rotates in the lower die frame 1, and the connection methods between the cross frame 82 and the auxiliary plate 81 and the unlocking plate 71 are existing technologies and will not be elaborated here.

[0030] In a further solution provided by the present invention, the convex component includes a special-shaped block 91 slidably connected in the arc-shaped block 24. A first metal block 92 is fixedly connected to the special-shaped block 91. A groove for the movement of the special-shaped block 91 is provided in the arc-shaped block 24. By providing the special-shaped block 91, the radian of the hand-holding part of the refrigerator drawer can be increased, and the comfort level when the refrigerator drawer is pulled out and taken in can be improved; a first electromagnet 93 is fixedly connected in the arc-shaped block 24. A second elastic telescopic rod 94 is provided between the arc-shaped block 24 and the special-shaped block 91. A positioning unit for fixing the special-shaped block 91 is also provided in the arc-shaped block 24. The first electromagnet 93 is connected to an external power supply. When the first electromagnet 93 is energized, it generates magnetism to overcome the elastic force of the second elastic telescopic rod 94 and the adhesion between the injection-molded part and the special-shaped block 91, and attracts the first metal block 92, so as to drive the special-shaped block 91 into the arc-shaped block 24. When the first electromagnet 93 is de-energized, the magnetism disappears, and the attraction force on the first metal block 92 disappears. At this time, the restoring force of the second elastic telescopic rod 94 can drive the special-shaped block 91 to pop out, and the popped-out special-shaped block 91 can be fixed by the positioning unit, improving the stability of the special-shaped block 91 during injection molding.

[0031] In a further solution provided by the present invention, the positioning unit includes a second electromagnet 101 fixedly connected in the arc-shaped block 24; a second metal block 102 is slidably connected in the arc-shaped block 24. A positioning rod 103 is fixedly connected to the second metal block 102. An abutting spring 104 is fixedly connected between the second metal block 102 and the arc-shaped block 24. The elastic force of the abutting spring 104 drives the positioning rod 103 to be engaged with the special-shaped block 91. The second electromagnet 101 and the first electromagnet 93 are connected to the same power supply. The second electromagnet 101 and the first electromagnet 93 are energized synchronously. When the second electromagnet 101 is energized, it generates magnetism to overcome the elastic force of the abutting spring 104 and attracts the second metal block 102, so that the second metal block 102 drives the positioning rod 103 to move away from the arc-shaped block 24. When the first metal block 92 and the second metal block 102 are energized, the second metal block 102 can generate magnetism earlier than the first metal block 92. When de-energized, the second metal block 102 can lose magnetism later than the first metal block 92. The elastic substance on the second elastic telescopic rod 94 and the abutting spring 104 are both made of 304 stainless steel or 316 stainless steel materials. These two types of stainless steel have a high austenite content, and the austenite structure is non-magnetic at room temperature, so it will not be affected by the energization of the first electromagnet 93 and the second electromagnet 101.

[0032] In a further solution provided by the present invention, the abutting component includes a single-sided inclined block 111 slidably connected to the arc-shaped block 24. One side of the single-sided inclined block 111 close to the third component frame 51 is provided with an inclined surface, and a groove for the movement of the single-sided inclined block 111 is provided in the arc-shaped block 24; a third spring 112 is fixedly connected between the single-sided inclined block 111 and the arc-shaped block 24. A single-sided inclined groove 113 is formed in the moving frame 21, and one side of the single-sided inclined groove 113 close to the third component frame 51 is also provided with an inclined surface. After the single-sided inclined block 111 enters the single-sided inclined groove 113, the inclined surface side of the single-sided inclined groove 113 contacts the inclined surface side of the single-sided inclined block 111. When the single-sided inclined block 111 needs to be separated from the single-sided inclined groove 113, a certain thrust is required for separation, and this thrust is greater than the elastic force of the connecting spring 26. It is not until the moving frame 21 is completely reset and the arc-shaped block 24 continues to receive a thrust that the single-sided inclined block 111 can be driven to separate from the single-sided inclined groove 113.

[0033] Working principle: During operation, after the lower mold frame 1 and the existing upper mold frame are spliced and combined, liquid is injected into the injection holes inside them. The liquid flows in the gap between the lower mold frame 1 and the upper mold frame and finally forms a complete refrigerator drawer. Then, demolding operation is required. By pulling the upper mold frame upward, the upper mold frame is separated from the formed refrigerator drawer, and the first electromagnet 93 and the second electromagnet 101 are energized. After the second electromagnet 101 is energized, it generates magnetism and overcomes the elastic force of the abutting spring 104 to drive the second metal block 102 to drive the positioning rod 103 to move and separate from the arc-shaped block 24. At this time, the first electromagnet 93 is energized to generate magnetism and overcomes the elastic force of the first elastic telescopic rod 35 and the adsorption force between the injection molded part and the special-shaped block 91, driving the first metal block 92 to drive the special-shaped block 91 to separate from the injection molded part and enter the inside of the arc-shaped block 24. Then, by starting an external drive source, the long strip 22 is driven to move. When the long strip 22 moves, it will pull the arc-shaped block 24 on the rotating rod 23 to rotate through the rotating plate 25, so that the arc-shaped block 24 is separated from the hand-holding part on the refrigerator drawer. It is not until the single-sided inclined block 111 on the arc-shaped block 24 enters the single-sided inclined groove 113 in the moving block that when the long strip 22 continues to pull the fixed arc-shaped block 24 to move through the rotating plate 25, the moving frame 21 can be driven to move synchronously and separated from the injection molded refrigerator drawer, realizing the core-pulling operation; Moreover, while the long strip 22 is moving, it will drive the auxiliary plate 81 connected to its bottom to move synchronously. The movement of the auxiliary plate 81 drives the cross frame 82 to unfold and drives the unlocking plate 71 on the other side to move towards each other synchronously. When the unlocking plate 71 moves, the wedge-shaped unlocking block 73 connected to it will first contact the first wedge-shaped block 44 on the side rod 42 and push the first wedge-shaped block 44 to drive the side rod 42 to move towards the fixed block 34 side. The side rod 42 moves and drives the clamping rod 41 to enter the fixed block 34 through the linkage bar 43. After the clamping rod 41 enters the fixed block 34, it will separate from the connecting plate 33. At this time, the inclined plane block 72 connected to the unlocking plate 71 will enter the driving groove 36 on the vertical plate 32 and squeeze the vertical plate 32 to drive the second component frame 31 to move downward. When the second component frame 31 moves, it will drive the first elastic telescopic rod 35 connected between the fixed block 34 and the connecting plate 33 to deform until the second component frame 31 is completely retracted into the lower mold frame 1. At this time, the wedge-shaped unlocking block 73 continues to move forward and contacts and squeezes the second wedge-shaped block 66. After the second wedge-shaped block 66 is squeezed, it drives the inclined plane baffle 54 to move downward synchronously through the bottom plate 64, so that after the inclined plane baffle 54 separates from the inclined tooth 63, the pushing plate 74 connected to the wedge-shaped unlocking block 73 will contact the baffle 54 and push the baffle 54 to move. After the baffle 54 moves, it will drive the third component frame 51 to move towards the first component frame 11 side through the limiting rod 52 and separate from the convex part of the formed refrigerator drawer, which is convenient for demolding.

[0034] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different 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 rotary slider core-pulling mechanism for a mold, including a lower mold frame (1), characterized in that: A first component frame (11) is fixedly connected to the lower mold frame (1); It further includes a slider mechanism, a first component assembly, and a second component assembly, all of which are arranged on the lower mold frame (1); During demolding, the slider mechanism moves to separate from the injection drawer. After the unlocking mechanism triggers the downward movement of the first component assembly, the unlocking mechanism continues to move and drives the second component assembly to move and separate from the injection drawer to achieve demolding; The slider mechanism includes a moving frame (21) and a long strip (22) slidably connected to the lower mold frame (1). An arc-shaped block (24) is rotatably connected in the moving frame (21) through a rotating rod (23). A protruding component is arranged in the arc-shaped block (24). The arc-shaped block (24) is rotatably connected to the long strip (22) through a rotating plate (25). A connecting spring (26) is fixedly connected between the moving frame (21) and the lower mold frame (1). Abutting components are also arranged on both sides of the arc-shaped block (24); The abutting component includes a single-sided inclined block (111) slidably connected to the arc-shaped block (24); A third spring (112) is fixedly connected between the single-sided inclined block (111) and the arc-shaped block (24). A single-sided inclined groove (113) is formed on the moving frame (21); The unlocking mechanism includes an unlocking plate (71) slidably connected in the lower mold frame (1). An inclined surface block (72) and two wedge-shaped unlocking blocks (73) are fixedly connected to the unlocking plate (71); Push plates (74) are fixedly connected to both of the wedge-shaped unlocking blocks (73). The unlocking plate (71) is connected to the long strip (22) through a transmission component.

2. The rotary slider core-pulling mechanism for a mold according to claim 1, wherein The first component assembly includes a second component frame (31) slidably connected in the lower mold frame (1). A vertical plate (32) and two connecting plates (33) are fixedly connected in the second component frame (31); Two fixing blocks (34) are fixedly connected in the lower mold frame (1). First elastic telescopic rods (35) are fixedly connected between the two fixing blocks (34) and the corresponding connecting plates (33). A driving groove (36) is formed in the vertical plate (32). First clamping units for fixing the corresponding connecting plates (33) are arranged on both of the fixing blocks (34).

3. The rotary slider core-pulling mechanism for a mold according to claim 2, characterized in that, The first clamping unit includes a clamping rod (41) and a side rod (42) slidably connected in the fixing block (34). A linkage bar (43) is rotatably connected between the clamping rod (41) and the side rod (42); One end of the side rod (42) is fixedly connected with a first wedge-shaped block (44). A first spring (45) is fixedly connected between the first wedge-shaped block (44) and the fixing block (34). The elastic force of the first spring (45) drives the clamping rod (41) to be in clamping cooperation with the connecting plate (33).

4. A rotary slider core-pulling mechanism for a mold according to claim 1, characterized in that, The second component assembly includes a third component frame (51) slidably connected in the lower mold frame (1). Two limiting rods (52) are fixedly connected to the third component frame (51); Two support blocks (53) are fixedly connected in the first set of forming frames (11). Both of the limiting rods (52) slidably penetrate through the corresponding support blocks (53) and are fixedly connected to the same baffle (54). A return spring (55) is fixedly connected between the baffle (54) and each of the two support blocks (53). A limiting unit is provided on each of the two support blocks (53).

5. A rotary slider core-pulling mechanism for a mold according to claim 4, characterized in that, The limiting unit includes a cross plate (61) fixedly connected to the support block (53), and an inclined surface stop block (62) is slidably connected to the cross plate (61); An inclined tooth (63) is fixedly connected to the limiting rod (52). A bottom plate (64) is fixedly connected to the bottom end of the inclined surface stop block (62). A second spring (65) is fixedly connected between the bottom plate (64) and the cross plate (61). The elastic force of the second spring (65) drives the inclined surface stop block (62) to be in clamping fit with the inclined tooth (63). A second wedge-shaped block (66) is also fixedly connected to the bottom plate (64).

6. The rotating slider core-pulling mechanism for a mold according to claim 1, characterized in that, The transmission assembly includes an auxiliary plate (81) fixedly connected to the long strip block (22), and a cross frame (82) is arranged between the auxiliary plate (81) and the unlocking plate (71).

7. A rotary slider core-pulling mechanism for a mold according to claim 1, characterized in that, The protruding assembly includes a special-shaped block (91) slidably connected in the arc-shaped block (24), and a first metal block (92) is fixedly connected to the special-shaped block (91); A first electromagnet (93) is fixedly connected in the arc-shaped block (24). A second elastic telescopic rod (94) is arranged between the arc-shaped block (24) and the special-shaped block (91). A positioning unit for fixing the special-shaped block (91) is also arranged in the arc-shaped block (24).

8. A rotary slider core-pulling mechanism for a mold according to claim 1, characterized in that, The positioning unit includes a second electromagnet (101) fixedly connected in the arc-shaped block (24); A second metal block (102) is slidably connected in the arc-shaped block (24). A positioning rod (103) is fixedly connected to the second metal block (102). A contact spring (104) is fixedly connected between the second metal block (102) and the arc-shaped block (24). The elastic force of the contact spring (104) drives the positioning rod (103) to be in clamping fit with the special-shaped block (91).

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