A rotating slider core-pulling mechanism for a refrigerator drawer hand mold

Abstract

The present invention discloses a rotating slider core-pulling mechanism for a refrigerator drawer hand mold, comprising a lower mold frame, on which a first component frame is fixedly connected; further comprising a slider mechanism, a first component assembly and a second component assembly, which are all arranged on the lower mold frame; during demoulding, the slider mechanism moves and separates from the injection molding drawer, and after the first component assembly is triggered to move downward by an unlocking mechanism, the unlocking mechanism continues to move and drives the second component assembly to move and separate from the injection molding drawer to achieve demoulding. Through the combination of the first component frame, the first component assembly and the second component assembly, the drawer with a protrusion at the hand grip can be integrally molded by injection molding. When the slider mechanism moves and pulls the core, the unlocking mechanism drives the first component assembly to move downward, and then pushes the second component assembly to move horizontally and separate from the protrusion of the drawer, so as to facilitate demoulding of the protruding drawer, and the operation is simple and convenient, and the drawer after demoulding has a good grip when used.

Description

Technical Field

[0001] 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

[0002] 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.

[0003] 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.

[0004] 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

[0005] 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.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rotating slider core pulling mechanism of a refrigerator drawer hand mold, comprising a lower mold frame, on which a first component frame is fixedly connected; further comprising a slider mechanism, a first component assembly and a second component assembly, which are all arranged on the lower mold frame; during demolding, the slider mechanism moves and separates from the injection molding drawer, and after the first component assembly is triggered to move downward by an unlocking mechanism, the unlocking mechanism continues to move and drives the second component assembly to move and separate from the injection molding drawer to achieve demolding; the slider mechanism comprises a moving frame and a long strip block slidably connected to the lower mold frame, the moving frame is rotatably connected to an arc block through a rotating rod, a protrusion assembly is arranged in the arc block, the arc 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, and abutment assemblies are also arranged on both sides of the arc block.

[0007] As a further description of the above technical solution:

[0008] The first component includes a second component frame slidably connected to the lower mold frame, and a vertical plate and two connecting plates are fixedly connected to the second component frame; two fixed blocks are fixedly connected to the lower mold frame, and a first elastic telescopic rod is fixedly connected between the two fixed blocks and the corresponding connecting plates, a driving groove is opened in the vertical plate, and the two fixed blocks are provided with a first clamping unit for fixing the corresponding connecting plates.

[0009] As a further description of the above technical solution:

[0010] The first clamping unit includes a clamping rod and a side rod slidably connected in the fixed block, and a linkage bar is rotatably connected between the clamping rod and the side rod; one end of the side rod is fixedly connected to a first wedge block, and a first spring is fixedly connected between the first wedge block and the fixed block, and the elastic force of the first spring drives the clamping rod to engage with the connecting plate.

[0011] As a further description of the above technical solution:

[0012] The second component includes a third component frame slidably connected to the lower mold frame, and two limit rods are fixedly connected to the third component frame; the first component frame is fixedly connected to two support blocks, and the two limit rods slide through the corresponding support blocks and are fixedly connected to the same baffle, and a return spring is fixedly connected between the baffle and the two support blocks, and a limit unit is set on the two support blocks.

[0013] As a further description of the above technical solution:

[0014] The limiting unit includes a transverse plate fixedly connected to the support block, and a sloped stopper is slidably connected to the transverse plate; helical teeth are fixedly connected to the limiting rod, and the bottom end of the sloped stopper is fixedly connected to a bottom plate, and a second spring is fixedly connected between the bottom plate and the transverse plate, and the elastic force of the second spring drives the sloped stopper to engage with the helical teeth, and a second wedge block is also fixedly connected to the bottom plate.

[0015] As a further description of the above technical solution:

[0016] The unlocking mechanism includes an unlocking plate slidably connected to the lower mold frame, and a ramp block and two wedge-shaped unlocking blocks are fixedly connected to the unlocking plate; a push plate is fixedly connected to the two wedge-shaped unlocking blocks, and the unlocking plate is connected to the long strip block through a transmission assembly.

[0017] As a further description of the above technical solution:

[0018] The transmission assembly comprises an auxiliary plate fixedly connected to the long strip block, and a cross frame is arranged between the auxiliary plate and the unlocking plate.

[0019] As a further description of the above technical solution:

[0020] The protrusion assembly includes a special-shaped block slidably connected to the arc block, and a first metal block is fixedly connected to the special-shaped block; a first electromagnet is fixedly connected to the arc block, a second elastic telescopic rod is arranged between the arc block and the special-shaped block, and a positioning unit for fixing the special-shaped block is also arranged in the arc block.

[0021] As a further description of the above technical solution:

[0022] The positioning unit includes a second electromagnet fixedly connected in the arc block; a second metal block is slidably connected in the arc block, a positioning rod is fixedly connected to the second metal block, and an abutment spring is fixedly connected between the second metal block and the arc block, and the elastic force of the abutment spring drives the positioning rod to engage with the special-shaped block.

[0023] As a further description of the above technical solution:

[0024] The abutment assembly comprises 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 provided on the moving frame.

[0025] In the above technical solution, the rotary slider core-pulling mechanism of a refrigerator drawer hand mold provided by the present invention has the beneficial effects of:

[0026] The present invention cooperates with each other among the lower mold frame, the first component frame, the slider mechanism, the first component assembly, the second component assembly and the unlocking mechanism, and through the combination of the first component frame, the first component assembly and the second component assembly, a drawer with a raised handle can be integrally molded by injection molding, which improves the molding method of the traditional refrigerator drawer with a raised handle and reduces its manufacturing steps. When the slider mechanism moves the core pulling process, the unlocking mechanism drives the first component assembly to move downward, and then pushes the second component assembly to move horizontally and separate from the raised handle of the drawer, so that the raised drawer can be demolded conveniently. The operation is simple and convenient, and the demolded drawer has a good grip when used.

[0027] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0028] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0030] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of the connection between the slider mechanism, the first component, the second component and the unlocking mechanism provided in an embodiment of the present invention;

[0032] Figure 3 An exploded schematic diagram of a slider mechanism, a first component, a second component, and an unlocking mechanism provided in an embodiment of the present invention;

[0033] Figure 4 A schematic diagram of the structural decomposition of the first component and the second component provided in an embodiment of the present invention;

[0034] Figure 5 A schematic longitudinal section diagram of a slider mechanism structure provided by an embodiment of the present invention;

[0035] Figure 6 A cross-sectional schematic diagram of an arc block structure provided by an embodiment of the present invention;

[0036] Figure 7 A schematic longitudinal section diagram of a local structure provided by an embodiment of the present invention;

[0037] Figure 8 A schematic cross-sectional view of a local structure provided by an embodiment of the present invention;

[0038] Fig. 9 A schematic diagram of the structure of a wedge-shaped unlocking block provided in an embodiment of the present invention;

[0039] Fig.10 for Figure 3 The enlarged view of point A in the middle;

[0040] Fig.11 for Figure 5 The enlarged view of point B in the middle;

[0041] Fig.12 for Figure 7 Enlarged view of point C in the middle;

[0042] Fig.13 for Figure 8 The enlarged view of point D in the middle;

[0043] Fig.14 A schematic diagram of the structure of an injection-molded refrigerator drawer provided in an embodiment of the present invention.

[0044] Description of reference numerals:

[0045] 1. Lower mold frame; 11. First component frame; 21. Moving frame; 22. Long strip block; 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. Linkage bar; 44. First wedge block; 45. First spring; 51. Third component frame; 52. Limit rod; 53. Support block; 54. Baffle; 55. Reset spring; 61. Horizontal Plate; 62, inclined surface block; 63, oblique teeth; 64, bottom plate; 65, second spring; 66, second wedge block; 71, unlocking plate; 72, inclined surface block; 73, wedge 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-sided oblique block; 112, third spring; 113, single-sided oblique groove. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0047] See also Figure 1-14 The present embodiment provides a rotating slider core-pulling mechanism for a refrigerator drawer hand mold, comprising a lower mold frame 1. The lower mold frame 1 is an existing device and will not be described in detail herein. 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 an inclined surface or a flat surface. Its specific setting shape can be set according to the shape of the injection-molded refrigerator drawer as required; it also includes a slider mechanism, a first component assembly and a second component assembly, which are all arranged on the lower mold frame 1. The slider mechanism is arranged at the handle of the refrigerator drawer. The first component frame 11, the first component assembly and the second component assembly can form a complete refrigerator drawer lining layer, wherein the first component assembly is arranged between the first component frame 11 and the second component assembly; during demolding, the slider mechanism moves and separates from the injection-molded drawer. After the first component assembly is triggered to move downward by the unlocking mechanism, the unlocking mechanism continues to move and drives the second component assembly The demoulding is realized by separating the moving and injection molding drawers. When the first component is moved downward, space can be provided for the lateral movement of the second component, and the second component is arranged at the protrusion of the refrigerator drawer. The protrusion can be separated by the lateral movement of the second component, so that the molded refrigerator drawer can be directly demoulded. The arrangement of this scheme can effectively improve the molding method of the protrusion of the refrigerator drawer, and the operation is simple and convenient. The slider mechanism includes a moving frame 21 and a long strip block 22 slidably connected to the lower mold frame 1. The lower mold frame 1 is provided with a movement groove for the moving frame 21 and the long strip frame. The moving frame 21 is rotatably connected with an arc block 24 through a rotating rod 23. A protrusion assembly is provided in the arc block 24. The arc block 24 is rotatably connected with the long strip block 22 through a rotating plate 25. A connecting spring 26 is fixedly connected between the moving frame 21 and the lower mold frame 1, and abutment assemblies are also provided on both sides of the arc block 24.

[0048] In an embodiment further provided by the present invention, the first constituent component 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 to the second component frame 31, the second component frame 31 is arranged in an inverted U shape, the vertical plate 32 is arranged at the center position inside the second component frame 31, and the two connecting plates 33 are respectively arranged on both sides of the vertical plate 32; two fixed blocks 34 are fixedly connected to the lower mold frame 1, and a first elastic telescopic rod 35 is fixedly connected between the two fixed blocks 34 and the corresponding connecting plates 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, and a driving groove 36 is opened in the vertical plate 32, and the driving groove 36 is arranged as an inclined through groove. Its specific shape can be referred to in the appendix of the instruction manual. Figure 3 Both fixing blocks 34 are provided with first clamping units for fixing the corresponding connecting plates 33. By providing the first clamping units, the stability of the second assembly frame 31 can be improved so that the second assembly frame 31 and the first assembly frame 11 are fixed on the same plane, and the second assembly frame 31 slides on one side of the first assembly frame 11.

[0049] Furthermore, the first clamping unit includes a clamping rod 41 and a side rod 42 which are slidably connected in the fixed block 34, and a linkage bar 43 is rotatably connected between the clamping rod 41 and the side rod 42. A groove for the clamping rod 41 and the side rod 42 to move is provided in the fixed block 34, and the clamping rod 41 and the side rod 42 are relatively vertically distributed. When the side rod 42 is subjected to a force to move toward the fixed block 34, the clamping rod 41 can be driven by the linkage bar 43 to synchronously retract into the fixed block 34; one end of the side rod 42 is fixedly connected to a first wedge block 44, and a first spring 45 is fixedly connected between the first wedge block 44 and the fixed block 34. The elastic force of the first spring 45 drives the clamping rod 41 to engage with the connecting plate 33, and a hole adapted to the clamping rod 41 can be opened on the connecting plate 33, so as to increase the connectivity between the clamping rod 41 and the connecting plate 33, thereby further improving the stability of the second component frame 31.

[0050] In an embodiment further provided by the present invention, the second constituent component includes a third constituent frame 51 slidably connected to the lower mold frame 1, the length of the third constituent frame 51 is greater than the length of the second constituent frame 31, and the portion of the third constituent frame 51 inside the lower mold frame 1 is wider, and a groove is provided in the wider portion, which is adapted to the second constituent frame 31, and the second constituent frame 31 is arranged between the first constituent frame 11 and the second constituent frame 31. When the second constituent frame 31 is fully retracted into the lower mold frame 1, the third constituent frame 51 moves toward the second constituent frame 31 and wraps the second constituent frame 31, and the third constituent frame 51 is in contact with the raised side of the refrigerator drawer, through the third constituent frame 51. The third component frame 51 moves laterally and can be separated from the protrusion of the refrigerator drawer to avoid the third component frame 51 blocking the refrigerator drawer when it is moved up for demoulding, thereby affecting its demoulding effect. Two limit rods 52 are fixedly connected to the third component frame 51; two support blocks 53 are fixedly connected to the first component frame 11, and the two limit rods 52 both slide through the corresponding support blocks 53 and are fixedly connected to the same baffle 54, and a return spring 55 is fixedly connected between the baffle 54 and the two support blocks 53. A hole for the limit rod 52 to move is provided on the support block 53, and the elastic force of the return spring 55 drives the baffle 54 to approach the support block 53, and the two support blocks 53 are provided with a limit unit.

[0051] Furthermore, the limiting unit includes a transverse plate 61 fixedly connected to the support block 53, and a bevel stopper 62 is slidably connected to the transverse plate 61; a helical tooth 63 is fixedly connected to the limiting rod 52, and a bottom end of the bevel stopper 62 is fixedly connected to a bottom plate 64, and a second spring 65 is fixedly connected between the bottom plate 64 and the transverse plate 61. The elastic force of the second spring 65 drives the bevel stopper 62 to engage with the helical tooth 63. The bevel stopper 62 and the helical tooth 63 are arranged to be inclined on one side away from the baffle 54, and the other side thereof is arranged to be flat. By arranging the bevel stopper 62 to engage with the helical tooth 63, the movement of the limiting rod 52 can be limited. A second wedge block 66 is also fixedly connected to the bottom plate 64.

[0052] In the embodiment provided by the present invention, the unlocking mechanism includes an unlocking plate 71 slidably connected to the lower mold frame 1, and an inclined block 72 and two wedge-shaped unlocking blocks 73 are fixedly connected to the unlocking plate 71; a pushing plate 74 is fixedly connected to the two wedge-shaped unlocking blocks 73, and the unlocking plate 71 is connected to the long strip block 22 through a transmission assembly. The inclined block 72 will enter the driving groove 36 in the vertical plate 32 during the movement of the unlocking plate 71. 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 side and bottom of the two wedge-shaped unlocking blocks 73 that are away from each other are both set to an inclined surface shape, and the specific setting shape of the two wedge-shaped unlocking blocks 73 can be found in the attached figure of the specification. Fig. 9When the unlocking plate 71 moves, it will first drive the wedge-shaped unlocking block 73 to move and contact the first wedge block 44, and push the first wedge block 44 to move, and under the action of the side rod 42 and the linkage bar 43, the clamping rod 41 is separated 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 and contacts the second wedge block 66, the second wedge block 66 is squeezed by the wedge-shaped unlocking block 73 and drives the inclined surface block 62 to move downward and separate from the oblique teeth 63 through the bottom plate 64, at this time, the pushing plate 74 set by the wedge-shaped unlocking block 73 will push the unlocked baffle 54 to move, and the third component frame 51 can be driven to move synchronously and separate from the formed refrigerator drawer through the limiting rod 52, and the pushing plate 74 is set to be L-shaped.

[0053] In the solution further provided by the present invention, 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. By arranging the cross frame 82 between the auxiliary plate 81 and the unlocking plate 71, when the auxiliary plate 81 on one side moves with the long strip block 22, the unlocking plate 71 on the other side can be driven to move synchronously in the opposite direction. The cross frame 82 rotates in the lower mold frame 1, and the connection method between the cross frame 82 and the auxiliary plate 81 and the unlocking plate 71 is the existing technology, which will not be elaborated on here.

[0054] In the solution further provided by the present invention, the protrusion assembly includes a special-shaped block 91 slidably connected to the arc block 24, a first metal block 92 is fixedly connected to the special-shaped block 91, and a groove for the special-shaped block 91 to move is provided in the arc block 24. By providing the special-shaped block 91, the curvature of the refrigerator drawer can be increased by the provision of the special-shaped block 91, and the comfort when the refrigerator drawer is taken out can be improved; a first electromagnet 93 is fixedly connected to the arc block 24, a second elastic telescopic rod 94 is provided between the arc block 24 and the special-shaped block 91, and a positioning unit for fixing the special-shaped block 91 is also provided in the arc block 24. The first electromagnet 93 is fixedly connected to the arc block 24, and a second elastic telescopic rod 94 is provided between the arc block 24 and the special-shaped block 91. The magnet 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, thereby driving the special-shaped block 91 into the arc block 24. When the first electromagnet 93 is powered off, the magnetism disappears, and the attraction to 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, thereby improving the stability of the special-shaped block 91 during injection molding.

[0055] In the solution further provided by the present invention, the positioning unit includes a second electromagnet 101 fixedly connected to the arc block 24; a second metal block 102 is slidably connected to the arc block 24, a positioning rod 103 is fixedly connected to the second metal block 102, an abutment spring 104 is fixedly connected between the second metal block 102 and the arc block 24, the elastic force of the abutment spring 104 drives the positioning rod 103 to engage 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, the second electromagnet 101 is energized to generate magnetism to overcome the elastic force of the abutment spring 104, and the second metal block 10 2 is attracted so that the second metal block 102 drives the positioning rod 103 to move and separate from the arc block 24. When the first metal block 92 and the second metal block 102 are energized, the second metal block 102 can generate magnetism before the first metal block 92. When the power is off, the second metal block 102 can lose magnetism after the first metal block 92. The elastic material on the second elastic telescopic rod 94 and the contact spring 104 are both made of 304 stainless steel or 316 stainless steel. 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.

[0056] In the solution further provided by the present invention, the abutment assembly includes a single-sided inclined block 111 slidably connected to the arc block 24, the side of the single-sided inclined block 111 close to the third component frame 51 is set as an inclined surface, and the arc block 24 is provided with a groove for the single-sided inclined block 111 to move; a third spring 112 is fixedly connected between the single-sided inclined block 111 and the arc block 24, a single-sided inclined groove 113 is opened on the moving frame 21, and the single-sided inclined groove 113 is also provided on the side close to the third component frame 51. After the single-sided inclined block 111 enters the single-sided inclined groove 113, the inclined side of the single-sided inclined groove 113 contacts the inclined 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 to separate. This thrust is greater than the elastic force of the connecting spring 26. Until the moving frame 21 is completely reset, the arc block 24 continues to be pushed to drive the single-sided inclined block 111 to separate from the single-sided inclined groove 113.

[0057] 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 hole inside the lower mold frame 1 and the upper mold frame. After the liquid flows in the gap between the lower mold frame 1 and the upper mold frame and finally forms a complete refrigerator drawer, it is necessary to perform a demolding operation. By pulling the upper mold frame upward, the upper mold frame is separated from the molded 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 block 24. At this time, the first electromagnet 93 is energized to generate magnetism and overcome the elastic force of the first The elastic force of the rod 35 and the adsorption force between the injection molded part and the special-shaped block 91 drive the first metal block 92 to drive the special-shaped block 91 to separate from the injection molded part and enter the interior of the arc block 24. At this time, the long strip block 22 is driven to move by starting the external driving source. When the long strip block 22 moves, the arc block 24 on the rotating rod 23 is pulled to rotate by the rotating plate 25, so that the arc block 24 is separated from the hand grip on the refrigerator drawer, until the single-sided inclined block 111 on the arc block 24 enters the single-sided inclined groove 113 in the moving block. At this time, the long strip block 22 continues to pull the fixed arc block 24 to move by the rotating plate 25, which can drive the moving frame 21 to move synchronously, and separate from the injection molded refrigerator drawer, to achieve the core pulling operation;

[0058] When the long strip block 22 moves, the auxiliary plate 81 connected to the bottom thereof will move synchronously. The movement of the auxiliary plate 81 drives the cross frame 82 to expand and drives the unlocking plate 71 on the other side to move synchronously. When the unlocking plate 71 moves, the wedge-shaped unlocking block 73 connected thereto will first contact the first wedge block 44 on the side rod 42, and push the first wedge block 44 to drive the side rod 42 to move toward 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 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, and the second When the assembly frame 31 moves, the first elastic telescopic rod 35 connected between the fixed block 34 and the connecting plate 33 will be driven to deform until the second assembly 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 block 66. After the second wedge block 66 is squeezed, it drives the inclined baffle 54 to move downward synchronously through the bottom plate 64, so that the inclined baffle 54 is separated from the oblique teeth 63. At this time, 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 assembly frame 51 to move toward the side of the first assembly frame 11 through the limiting rod 52, and separate from the protrusion of the molded refrigerator drawer, so as to facilitate demolding.

[0059] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rotating slider core-pulling mechanism for a refrigerator drawer hand mold, comprising a lower mold frame (1), characterized in that: The lower mold frame (1) is fixedly connected to a first assembly frame (11); It also includes a slider mechanism, a first component and a second component, all of which are arranged on the lower mold frame (1); During demoulding, the slider mechanism moves and separates from the injection drawer. After the first component is triggered to move downward by the unlocking mechanism, the unlocking mechanism continues to move and drives the second component to move and separate from the injection drawer to achieve demoulding; The slider mechanism comprises a moving frame (21) and a long strip block (22) slidably connected to the lower mold frame (1); an arc block (24) is rotatably connected to the moving frame (21) via a rotating rod (23); a protrusion component is provided in the arc block (24); the arc block (24) is rotatably connected to the long strip block (22) via a rotating plate (25); a connecting spring (26) is fixedly connected between the moving frame (21) and the lower mold frame (1); and abutment components are also provided on both sides of the arc block (24); The protrusion assembly comprises 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 to the arc block (24), a second elastic telescopic rod (94) is provided between the arc block (24) and the special-shaped block (91), and a positioning unit for fixing the special-shaped block (91) is also provided in the arc block (24).

2. The rotating slider core-pulling mechanism of the refrigerator drawer hand mold according to claim 1, characterized in that: The first component comprises a second component frame (31) slidably connected to the lower mold frame (1), and a vertical plate (32) and two connecting plates (33) are fixedly connected to the second component frame (31); Two fixed blocks (34) are fixedly connected in the lower mold frame (1), and a first elastic telescopic rod (35) is fixedly connected between the two fixed blocks (34) and the corresponding connecting plates (33). A driving groove (36) is provided in the vertical plate (32), and a first clamping unit for fixing the corresponding connecting plate (33) is provided on the two fixed blocks (34).

3. The rotating slider core-pulling mechanism of the refrigerator drawer hand mold according to claim 2, characterized in that: The first clamping unit comprises a clamping rod (41) and a side rod (42) slidably connected in the fixed 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 to a first wedge block (44), a first spring (45) is fixedly connected between the first wedge block (44) and the fixed block (34), and the elastic force of the first spring (45) drives the clamping rod (41) to engage with the connecting plate (33).

4. The rotating slider core-pulling mechanism of a refrigerator drawer hand mold according to claim 1, characterized in that: The second component comprises a third component frame (51) slidably connected to the lower mold frame (1), and two limit rods (52) are fixedly connected to the third component frame (51); Two support blocks (53) are fixedly connected in the first component frame (11); the two limit rods (52) slide through the corresponding support blocks (53) and are fixedly connected to the same baffle plate (54); a return spring (55) is fixedly connected between the baffle plate (54) and the two support blocks (53); and limit units are provided on the two support blocks (53).

5. The rotary slider core-pulling mechanism of the refrigerator drawer hand mold according to claim 4, characterized in that: The limiting unit comprises a transverse plate (61) fixedly connected to the support block (53), and a sloped stopper (62) is slidably connected to the transverse plate (61); The limiting rod (52) is fixedly connected with an oblique tooth (63), the bottom end of the oblique surface stopper (62) is fixedly connected with a bottom plate (64), 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 oblique surface stopper (62) to engage with the oblique tooth (63), and a second wedge block (66) is also fixedly connected to the bottom plate (64).

6. The rotating slider core-pulling mechanism of the refrigerator drawer hand mold according to claim 1, characterized in that: The unlocking mechanism comprises an unlocking plate (71) slidably connected to the lower mold frame (1), and a slope block (72) and two wedge-shaped unlocking blocks (73) are fixedly connected to the unlocking plate (71); The two wedge-shaped unlocking blocks (73) are both fixedly connected with a pushing plate (74), and the unlocking plate (71) is connected to the long strip block (22) via a transmission assembly.

7. The rotating slider core-pulling mechanism of the refrigerator drawer hand mold according to claim 6, characterized in that: The transmission assembly comprises an auxiliary plate (81) fixedly connected to the long strip block (22), and a cross frame (82) is provided between the auxiliary plate (81) and the unlocking plate (71).

8. The rotating slider core-pulling mechanism of a refrigerator drawer hand mold according to claim 1, characterized in that: The positioning unit comprises a second electromagnet (101) fixedly connected in the arc block (24); A second metal block (102) is slidably connected to the arc block (24), a positioning rod (103) is fixedly connected to the second metal block (102), an abutment spring (104) is fixedly connected between the second metal block (102) and the arc block (24), and the elastic force of the abutment spring (104) drives the positioning rod (103) to engage with the special-shaped block (91).

9. The rotating slider core-pulling mechanism of a refrigerator drawer hand mold according to claim 1, characterized in that: The abutment assembly comprises 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), and a single-sided inclined groove (113) is provided on the moving frame (21).

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