Hot melt fixing device for upper shell and screen fixing frame of refrigerator deodorizing sterilizer

Abstract

The application discloses a hot melting fixing device for an upper shell and a separation net fixing frame of a refrigerator deodorizing sterilizer, which comprises a rack, a first translation mechanism, a first conveying line, a pushing mechanism, a second conveying line, a pressing mechanism, a hot melting mechanism and a semi-finished product frame, the first translation mechanism is arranged on the rack, a mold and a top material mechanism are connected to an output end of the first translation mechanism, the first conveying line is arranged at a conveying start end of the first translation mechanism, and a conveying direction of the first translation mechanism is perpendicular to a conveying direction of the first conveying line, the pushing mechanism is arranged on the rack, the second conveying line is arranged on the rack, the pressing mechanism is arranged above the second conveying line, the hot melting mechanism is arranged at a conveying end of the first translation mechanism, and the semi-finished product frame is arranged on the rack and corresponds to the first conveying line. The hot melting fixing device for the upper shell and the separation net fixing frame of the refrigerator deodorizing sterilizer has the functions of realizing automatic assembly of the upper shell and the separation net fixing frame, improving work efficiency and guaranteeing product consistency and yield.

Description

Technical Field

[0001] This invention relates to the technical field of refrigerator deodorizing and sterilizing device assembly equipment, and particularly to a hot-melt fixing device for the upper shell and mesh fixing frame of a refrigerator deodorizing and sterilizing device. Background Technology

[0002] Refrigerator deodorizers and sterilizers primarily work by converting electrical energy into energy through a transducer to remove odors and harmful bacteria from inside the refrigerator.

[0003] like Figure 1 The assembly diagram shown depicts the upper shell a and the mesh fixing frame b. Due to the limited internal dimensions of the upper shell a, fasteners cannot be used to securely connect the upper shell a and the mesh fixing frame b. Therefore, a protruding, integral plastic column a2 is pre-installed inside the upper shell a. The mesh fixing frame b has through holes that match the plastic column. During assembly, the mesh fixing frame is placed inside the upper shell, and the plastic column is inserted into the through hole. Then, the plastic column is melted by heating to securely connect the upper shell and the mesh fixing frame. In existing mesh fixing frame assemblies, the operator inserts the through hole of the mesh fixing frame into the plastic column of the upper shell, and then uses a hot melt gun to heat-melt the top of the plastic column to form a mushroom head, thus securing the mesh fixing frame to the upper shell. However, manual operation is inefficient, resulting in low product consistency and yield, and is prone to insufficient internal fixation, failing to meet high-quality requirements.

[0004] It is evident that existing technologies still need improvement and enhancement. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a hot-melt fixing device for the upper shell and the mesh fixing frame of a refrigerator deodorizer and sterilizer, which aims to realize the function of automatic assembly of the upper shell and the mesh fixing frame, improve work efficiency, and ensure product consistency and yield.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A heat-melting fixing device for the upper shell and mesh fixing frame of a refrigerator deodorizer and sterilizer, including: a frame;

[0008] The first translation mechanism is located on the frame, and its output end is connected to a mold for placing the upper shell and an ejector mechanism for ejecting the upper shell from the mold.

[0009] The first conveyor line is located at the beginning of the conveying process of the first translation mechanism and is used to convey the upper shell. The conveying direction of the first translation mechanism is perpendicular to the conveying direction of the first conveyor line.

[0010] The pushing mechanism, located on the frame, is used to push the upper shell on the first conveyor line into the mold;

[0011] The second conveyor line, located on the frame, is used to convey the mesh fixing frame;

[0012] The pressing mechanism, located above the second conveyor line, is used to press the mesh fixing frame on the second conveyor line into the upper shell located on the mold;

[0013] A heat-fusion mechanism, located at the conveying end of the first translation mechanism, is used to heat-fuse and fix the upper shell and the partition mesh fixing frame; and,

[0014] The semi-finished product rack is set on the machine frame and is corresponding to the first conveyor line. The top material mechanism lifts the upper shell after it is fused with the partition net fixing frame, and the push material mechanism pushes the upper shell into the semi-finished product rack.

[0015] Furthermore, the mold includes a plurality of grooves sequentially formed along the conveying direction of the first translation mechanism, the grooves being used to place the upper shell.

[0016] Furthermore, one groove corresponds to one first conveyor line, and two stops are symmetrically hinged on both sides of the conveying end of the first conveyor line. The stops are provided with a first torsion spring for resetting.

[0017] Furthermore, the feeding mechanism is provided with a first lifting mechanism on the frame and a second translation mechanism at the output end of the first lifting mechanism. The conveying end of the second translation mechanism is connected to a push block that matches the number of grooves. The push block is provided with two inserts, and the distance between the two inserts matches the width of the upper shell.

[0018] Furthermore, one of the grooves is provided with one second conveyor line, and two support blocks are symmetrically hinged at the bottom of the conveying end of the second conveyor line. The support blocks are provided with a second torsion spring for resetting.

[0019] Furthermore, the pressing mechanism includes a second lifting mechanism located above the frame and a gripping mechanism located at the output end of the second lifting mechanism. The gripping mechanism includes gripping components that match the number of the gripping drive components and the number of the grooves. Each gripping component includes two symmetrically arranged grippers. The gripping drive components drive the two grippers to move towards each other or away from each other.

[0020] Furthermore, the clamping drive assembly includes a third translation mechanism and a rack located at the output end of the third translation mechanism. The rack is meshed with gears that match the number of clamping assemblies. Each gear is fixed with a symmetrical cam, and the wheel surface of the symmetrical cam acts on two grippers.

[0021] Furthermore, the hot-melt mechanism includes a support, a fourth lifting mechanism disposed on the support, a micro-lifting component disposed at the output end of the fourth lifting mechanism, and a working head disposed at the output end of the micro-lifting component, the number of working heads matching the number of grooves.

[0022] Furthermore, the top material mechanism includes a third lifting mechanism and a top block located at the output end of the third lifting mechanism. The number of top blocks matches the number of grooves, and the bottom of the mold is provided with a clearance groove for the top blocks to pass through.

[0023] Furthermore, the hot-melting mechanism has two symmetrically arranged material preparation stations on both sides, each material preparation station including a first translation mechanism, a first conveyor line, a pushing mechanism, a second conveyor line, a pressing mechanism, and a semi-finished product rack.

[0024] Beneficial effects:

[0025] The hot-melt fixing device for the upper shell and mesh fixing frame of the refrigerator deodorizer and sterilizer provided by the present invention assembles the mesh fixing frame into the upper shell through the cooperation of a first conveyor line, a second conveyor line, a pushing mechanism and a pressing mechanism. Driven by a first translation mechanism, the upper shell moves to the bottom of the hot-melt mechanism for hot-melt fixing. After being fixed with the mesh fixing frame, the upper shell returns under the action of the first translation mechanism and is pushed out above the groove by the top material mechanism. Finally, it is pushed out to the semi-finished product rack by the pushing mechanism. This realizes the function of automatic assembly of the upper shell and the mesh fixing frame, improves work efficiency, and ensures product consistency and yield. Attached Figure Description

[0026] Figure 1 A schematic diagram of the assembly of the upper shell and mesh fixing bracket for the refrigerator deodorizer and sterilizer.

[0027] Figure 2 Exploded view of the upper shell and mesh fixing frame of the refrigerator deodorizer and sterilizer.

[0028] Figure 3 This is a schematic diagram of the structure of the hot-melt fixing device for the upper shell and the mesh fixing frame of the refrigerator deodorizer and sterilizer provided by the present invention.

[0029] Figure 4 A schematic diagram of the structure of the first conveyor line in the hot-melt fixing device for the upper shell and mesh fixing frame of the refrigerator deodorizer and sterilizer provided by the present invention.

[0030] Figure 5 This is a top view of the first conveyor line in the hot-melt fixing device for the upper shell and mesh fixing frame of the refrigerator deodorizer and sterilizer provided by the present invention.

[0031] Figure 6 A cross-sectional view of the first conveyor line in the hot-melt fixing device for the upper shell and mesh fixing frame of the refrigerator deodorizer and sterilizer provided by the present invention.

[0032] Figure 7 This is a schematic diagram of the top material mechanism in the hot-melt fixing device for the upper shell and mesh fixing frame of the refrigerator deodorizer and sterilizer provided by the present invention.

[0033] Figure 8A schematic diagram of the pressing mechanism in the hot-melt fixing device for the upper shell and mesh fixing frame of the refrigerator deodorizer and sterilizer provided by the present invention.

[0034] Figure 9 A cross-sectional view of the pressing mechanism in the hot-melt fixing device for the upper shell and mesh fixing frame of the refrigerator deodorizer and sterilizer provided by the present invention.

[0035] Figure 10 The front view of the hot-melt mechanism in the hot-melt fixing device for the upper shell and mesh fixing frame of the refrigerator deodorizer and sterilizer provided by the present invention.

[0036] Figure 11 for Figure 10 Enlarged view of point E.

[0037] Figure 12 This is a schematic diagram of the structure of the hot-melt fixing device for the upper shell and the mesh fixing frame of the refrigerator deodorizer and sterilizer provided by the present invention.

[0038] Key component symbols: 1. Frame; 2. First translation mechanism; 3. Mold; 31. Groove; 32. Clearance groove; 4. Ejection mechanism; 41. Third lifting mechanism; 42. Ejector block; 421. Short rod; 422. Long rod; 423. U-shaped support bar; 5. First conveyor line; 51. Stop block; 52. First L-shaped support bar; 53. First belt conveyor assembly; 6. Pushing mechanism; 61. First lifting mechanism; 62. Second translation mechanism; 63. Ejection block; 631. Insert plate; 632. L-shaped bracket; 64. Push plate; 7. Second conveyor line; 71. Support block; 72. Second L-shaped support bar; 73. Second belt conveyor assembly; 74. Baffle; 8. Pressing mechanism; 81. Second lifting mechanism; 82. Gripping mechanism; 821. Clamping drive assembly Components; 8211, Third translation mechanism; 8212, Rack; 8213, Gear; 8214, Symmetrical cam; 822, Gripper; 83, Mounting base; 84, First guide rod; 85, First spring; 86, Pin; 9, Hot melt mechanism; 91, Support; 92, Fourth lifting mechanism; 93, Micro-lifting assembly; 931, Fourth translation mechanism; 932, Lever; 933, Second guide rod; 934, Movable plate; 935, Second spring; 936, Adjusting block; 9361, Slide groove; 94, Working head; 941, Hot press column; 95, Mounting plate; 10, Semi-finished product rack; 101, Slide rail; a, Upper shell; a1, Arc surface; a2, Plastic column; b, Partition mesh fixing frame; b1, Through hole; b2, Mounting groove; b3, Screw mounting hole. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0041] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0042] Furthermore, the terms "installation," "setup," "equipped with," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances.

[0043] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0044] The technical solution of the present invention will be further described below with reference to the embodiments and accompanying drawings.

[0045] Example

[0046] Please see Figure 3-11This invention provides a hot-melt fixing device for the upper shell and mesh fixing frame of a refrigerator deodorizer and sterilizer, including a frame 1, a first translation mechanism 2, a first conveyor line 5, a pushing mechanism 6, a second conveyor line 7, a pressing mechanism 8, a hot-melt mechanism 9, and a semi-finished product rack 10; the first translation mechanism 2 is mounted on the frame 1, and its output end is connected to a mold 3 for placing the upper shell and a pushing mechanism 4 for ejecting the upper shell from the mold 3; the first conveyor line 5 is located at the beginning of the conveying of the first translation mechanism 2, and the first conveyor line 5 is used to convey the upper shell, and the conveying direction of the first translation mechanism 2 is perpendicular to the conveying direction of the first conveyor line 5; the pushing mechanism... The first conveyor line 5 is mounted on the frame 1 and is used to push the upper shell on the first conveyor line 5 into the mold 3; the second conveyor line 7 is mounted on the frame 1 and is used to convey the partition net fixing frame; the pressing mechanism 8 is mounted above the second conveyor line 7 and is used to press the partition net fixing frame on the second conveyor line 7 into the upper shell located on the mold 3; the hot-melt mechanism 9 is mounted at the conveying end of the first translation mechanism 2 and is used to hot-melt and fix the upper shell and the partition net fixing frame; the semi-finished product rack 10 is mounted on the frame 1 and is correspondingly arranged to the first conveyor line 5; the ejector mechanism 4 lifts the upper shell after it has been fused with the partition net fixing frame, and the pusher mechanism 6 pushes the upper shell into the semi-finished product rack 10.

[0047] The existing refrigerator deodorizing and sterilizing device's upper shell a and mesh fixing bracket b, such as Figure 1 , 2 As shown, the lower surface of the upper shell a is an arc surface a1. The upper shell 1 has a raised, integrally formed plastic column a2. The mesh fixing frame b has a through hole b1 that matches the plastic column a2, a mounting groove b2 for placing the ozone generator, and a screw mounting hole b3 for fixing the ozone generator. After assembly, the mesh fixing frame b is located inside the upper shell a, and the plastic column a2 is inserted into the through hole b1. After the heat is melted, the top of the plastic column is heat-melted into a mushroom head so that the mesh fixing frame is fixedly connected to the upper shell.

[0048] In use, the first conveyor line 5 conveys the upper shell forward and the second conveyor line 7 conveys the mesh fixing frame forward. Here, it should be noted that the plastic column a2 and the through hole b1 are located on the same side and on the same vertical plane. The first translation mechanism 2 drives the mold 3 to move to the beginning of the conveying process, i.e., the mold 3 is located at the end of the conveying process of the first conveying line 5. Then, the pushing mechanism 6 pushes the upper shell into the mold 3. The pressing mechanism 8 presses the mesh fixing frame into the upper shell, thus completing the assembly of the upper shell and the mesh fixing frame. Then, the first translation mechanism 2 drives the mold 3 to move to the end of the conveying process, i.e., the mold 3 is located below the hot melt mechanism 9. The hot melt mechanism 9 melts the top of the plastic column a2 into a mushroom head, realizing the fixed connection between the mesh fixing frame and the upper shell. Next, the first translation mechanism 2 drives the mold 3 to return to the beginning of the conveying process. The ejecting mechanism 4 ejects the upper shell from the mold 3. At the same time as the pushing mechanism 6 pushes the upper shell out of the first conveying line 5, the upper shell ejected by the ejecting mechanism 4 is pushed into the semi-finished product rack 10. This completes one melting and fixing action. The above actions are repeated in sequence. Compared with the prior art, this can realize the function of automatic assembly of the upper shell and the mesh fixing frame, improve work efficiency, and ensure product consistency and yield.

[0049] In a preferred embodiment, see [reference] Figure 4 , 5 The mold 3 includes a plurality of grooves 31 sequentially formed along the conveying direction of the first translation mechanism 2. The grooves 31 are used to place the upper shell. In this embodiment, the number of grooves 31 is preferably 5. The grooves 31 match the arc surface a1 of the upper shell a. By setting multiple grooves 31, multiple upper shells and mesh fixing frames can be assembled simultaneously.

[0050] The first translation mechanism 2 mentioned above can be a cylinder-driven translation mechanism, a ball screw transmission assembly-driven translation mechanism, or a synchronous belt transmission assembly-driven translation mechanism, which can realize the reciprocating movement of the drive mold 3 between the conveying end of the first conveying line 5 and the hot melt mechanism 9.

[0051] In a preferred embodiment, see [reference] Figure 4 , 56. Each groove 31 corresponds to one first conveyor line 5. Specifically, the first conveyor line 5 includes symmetrically arranged first L-shaped support strips 52 and two first belt conveyor assemblies 53 respectively disposed at the bottom of the first L-shaped support strips 52. The two first belt conveyor assemblies 53 cooperate to act on the bottom surfaces of the two ends of the upper shell and convey the upper shell forward. The distance between the two side walls of the two first L-shaped support strips 52 is the length of the upper shell, so as to limit the conveying direction. Two stops 51 are symmetrically hinged on both sides of the conveying end of the first conveyor line 5. The stops 51 are equipped with a first torsion spring for resetting. That is, the two stops 51 are respectively hinged to the side walls of the two first L-shaped support strips 52 and are set near the conveying end of the first belt conveyor assembly 53. The stops 51 play the role of blocking the material. Due to the presence of the first torsion spring, when the pushing mechanism 6 pushes out the upper shell, the end of the upper shell pushes away the stops 51 until the upper shell is far away from the stops 51. Under the action of the first torsion spring, the stops 51 reset and block the next upper shell from being pushed forward, thereby playing the role of pushing the upper shells on each of the first conveyor lines 5 one by one.

[0052] For the first conveyor line 5 to continuously convey the upper shell forward, the operator can place the upper shell in the correct order at the beginning of the first conveyor line 5, or the beginning of the first conveyor line 5 can be spliced ​​with the end of the conveyor line of the previous process of the upper shell.

[0053] Further, see Figure 4 , 5 6. The pushing mechanism 6 is provided on the frame 1 with a first lifting mechanism 61 and a second translation mechanism 62 provided at the output end of the first lifting mechanism 61. The conveying end of the second translation mechanism 62 is connected to a push-out block 63 that matches the number of grooves 31. The push-out block 63 is provided with two inserts 631, and the distance between the two inserts 631 matches the width of the upper shell.

[0054] The first lifting mechanism 61 can be driven by a cylinder to perform lifting and lowering movements on the second translation mechanism 62, which in turn can be driven by a cylinder to perform simultaneous translational movements on the two inserts 631. Specifically, the conveying end of the second translation mechanism 62 is connected to a push plate 64, and the two inserts 631 located in the same first conveying line 5 are each connected to two L-shaped brackets 632, which are fixed on the push plate 64. When the upper shell stops under the action of the stop block 51, the push block 63 is located below the upper shell. The first lifting mechanism 61 drives the first translation mechanism 2 to move upward so that the two inserts 631 are inserted into the front and rear sides of the upper shell respectively. The first translation mechanism 2 drives the push block 63 to move forward so that the two inserts 631 cooperate to push the upper shell forward. During this process, the two ends of the upper shell push open the two stop blocks 51 respectively. Then the two stop blocks 51 are reset under the action of the first torsion spring and block the next upper shell from continuing to be conveyed forward. When the upper shell moves above the mold 3, it falls into the groove 31 below due to its own weight. After the push is completed, the second translation mechanism 62 drives the push block 63 to move backward a certain distance so that the inserts 631 are away from the mold 3. Then the first lifting mechanism 61 drives the second translation mechanism 62 to move downward, and the second translation mechanism 62 drives the push block 63 to move backward to the initial state and wait for the next push action.

[0055] It should be noted that, in order to ensure that the two inserts 631 can smoothly push the upper shell above the corresponding groove 31, the two first L-shaped support strips 52 should extend above the mold 3; in order to avoid positional interference between the upper shell and the L-shaped support 632 during the process of the upper shell falling into the groove 31, the distance between the two L-shaped supports 632 should be greater than the length of the upper shell.

[0056] In a preferred embodiment, see [reference] Figure 8 , 9Each groove 31 corresponds to one second conveyor line 7. Specifically, the second conveyor line 7 includes symmetrically arranged second L-shaped support strips 72 and two second belt conveyor assemblies 73 respectively located at the bottom of the second L-shaped support strips 72. The two second belt conveyor assemblies 73 cooperate to act on the bottom surfaces of the two ends of the mesh fixing frame and convey the mesh fixing frame forward. The distance between the two side walls of the two second L-shaped support strips 72 is the length of the mesh fixing frame, which serves to limit the conveying direction. The end of the second L-shaped support strip 72 near the end of the second belt conveyor has a baffle 74 to limit movement. At the bottom of the conveying end of the second conveyor line 7, two support blocks 71 are symmetrically hinged. The support blocks 71 are equipped with a second torsion spring for resetting. That is, the two support blocks 71 are respectively hinged to the bottom of the two second L-shaped support strips 72. The support blocks 71 serve to support the mesh fixing frame. Due to the second torsion spring, after the pressing mechanism 8 clamps the mesh fixing frame located on the support block 71, it presses it down onto the upper shell. The end of the mesh fixing frame pushes away from the support block 71 until it is far away from the support block 71. Under the action of the second torsion spring, the support block 71 resets and prevents the next mesh fixing frame from falling down, thereby pressing down the mesh fixing frames on each second conveyor line 7 one by one.

[0057] For the second conveyor line 7 to continuously convey the mesh fixing frame forward, the operator can correctly place the mesh fixing frame in sequence at the beginning of the second conveyor line 7, or the beginning of the second conveyor line 7 can be spliced ​​with the end of the conveyor line of the previous process of the mesh fixing frame.

[0058] In this embodiment, the conveying surfaces of the first belt conveyor assembly 53 and the second belt conveyor assembly 73 are both equipped with anti-slip textures to ensure that the upper shell and the partition net fixing frame are conveyed forward smoothly.

[0059] In a preferred embodiment, see [reference] Figure 8 , 9The pressing mechanism 8 includes a second lifting mechanism 81 located above the frame 1 and a gripping mechanism 82 located at the output end of the second lifting mechanism 81. The gripping mechanism 82 includes a gripping drive assembly 821 and a number of gripping assemblies matching the number of grooves 31. Each gripping assembly includes two symmetrically arranged grippers 822. The gripping drive assembly 821 drives the two grippers 822 to move towards or away from each other. During clamping, the second lifting mechanism 81 drives the gripping mechanism 82 to descend, so that the grippers 822 on each clamping component descend into the mounting slot b2 of the mesh fixing frame. Then, the clamping drive component 821 drives the two grippers 822 to move away from each other, and the two grippers 822 act on the inner wall of the mounting slot b2 to clamp the mesh fixing frame. Then, the second lifting mechanism 81 drives the gripping mechanism 82 to move downward to press the mesh fixing frame into the upper shell. Subsequently, the clamping drive component 821 drives the two grippers 822 on each clamping component to reset, and the grippers 822 release the mesh fixing frame. Finally, the second lifting mechanism 81 drives the gripping mechanism 82 to reset.

[0060] Furthermore, the output end of the second lifting mechanism 81 is provided with a mounting base 83. The clamping drive assembly 821 includes a third translation mechanism 8211 provided on the mounting base 83 and a rack 8212 provided on the output end of the third translation mechanism 8211. The rack 8212 is slidably connected to the mounting base 83. A gear 8213 matching the number of clamping assemblies is meshed on the rack 8212. The gear 8213 is horizontally arranged and rotatably connected to the mounting base 83. A symmetrical cam 8214 is fixed on each gear 8213. The wheel surface of the symmetrical cam 8214 acts on two grippers 822. Specifically, four horizontally slidable first guide rods 84 are provided on the front and rear sides of the mounting base 83. All four first guide rods 84 are fixed on the grippers 822. A first spring 85 is sleeved on the first guide rod 84, and the first spring 85 is located between the grippers 822 and the side wall of the mounting base 83. The third translation mechanism 8211 can be driven by a cylinder or an electric push rod to move the rack 8212 horizontally. When the rack 8212 drives the gear 8213 to rotate, the larger part of the outer diameter of the symmetrical cam 8214 acts on the two grippers 822, and the two grippers 822 move away from each other, so that the two grippers 822 clamp the mounting groove b2. Conversely, when the smaller part of the outer diameter of the symmetrical cam 8214 acts on the two grippers 822, the two grippers 822 move closer to each other under the action of the first spring 85, and the two grippers 822 release the mounting groove b2.

[0061] To prevent the mounting base 83 from interfering with the first conveyor line 5 during the descent driven by the second lifting mechanism 81, the gripper 822 has a certain length, so that after the mesh fixing frame presses against the inner shell, the bottom of the mounting base 83 is higher than the top of the first conveyor line 5.

[0062] To improve the clamping force of the gripper 822, a rubber pad with anti-slip protrusions is provided on the inner side of the gripper 822 near the mounting groove.

[0063] To prevent relative movement between the mesh fixing frame and the gripper 822 during assembly of the upper shell and the mesh fixing frame, the bottom of the mounting base 83 is provided with a pin 86 that mates with the screw mounting hole b3 of the mesh fixing frame.

[0064] In the above, the third lifting mechanism 41 can be a cylinder-driven mounting base 83 to perform lifting and lowering movements, or a ball screw transmission assembly can drive the mounting base 83 to perform lifting and lowering movements.

[0065] In a preferred embodiment, see [reference] Figure 10 , 11 The hot-melting mechanism 9 includes a support 91, a fourth lifting mechanism 92 mounted on the support 91, a micro-lifting component 93 located at the output end of the fourth lifting mechanism 92, and a working head 94 with an output end of the micro-lifting component 93. The number of working heads 94 matches the number of grooves 31. A heating element is installed inside each working head 94, and a hot-pressing column 941 is located at the bottom of the working head 94. The heat from the heating element is transferred to the working head 94, enabling the hot-pressing column 941 to hot-melt the plastic column at high temperatures. During hot-melt fixing, the fourth lifting mechanism 92 drives the working head 94 to descend, causing the hot-pressing column 941 to move to the plastic column a2. Driven by the micro-lifting component 93, the hot-pressing column 941 melts the plastic column. After the plastic column solidifies, it forms a mushroom head, thus achieving a fixed connection between the upper shell and the mesh fixing frame.

[0066] The fourth lifting mechanism 92 described above can be driven by a cylinder to perform lifting and lowering movements on the micro-lifting assembly 93. The distance by which the working head 94 descends driven by the micro-lifting assembly 93 is the length of the plastic column to be melted. Specifically, the output end of the fourth lifting mechanism 92 is connected to a mounting plate 95. The micro-lifting assembly 93 includes a fourth translation mechanism 931 mounted on the mounting plate 95 and several levers 932 mounted on the output ends of the fourth translation mechanism 931. The number of levers 932 matches the number of working heads 94. Each working head 94 has a heat insulation plate connected to its top. Four second guide rods 933 are vertically arranged on the heat insulation plate. The second guide rods 933 are slidably connected to the mounting plate 95, and each has a movable plate 934 fixed to its top. A second spring 935 is sleeved on the second guide rod 933. The two ends of the second spring 935 are connected to the movable plate 934 and the mounting plate 95, respectively. An adjusting block 936 is installed on the movable plate 934. The adjusting block 936 has an inclined sliding groove 9361. Each lever 932 is slidably connected to the sliding groove 9361. When the fourth translation mechanism 931 drives the lever 932 to move horizontally, the lever 932 slides along the sliding groove 9361 to drive the working head 94 to move up and down a small distance.

[0067] In a preferred embodiment, see [reference] Figure 6 ,7 The ejector mechanism 4 includes a third lifting mechanism 41 and an ejector block 42 provided at the output end of the third lifting mechanism 41. The number of ejector blocks 42 matches the number of the grooves 31, and an avoidance groove 32 for the ejector block 42 to pass through is provided at the bottom of the mold 3. Among them, the third lifting mechanism 41 can be a cylinder to drive the ejector block 42 to move up and down. Specifically, the ejector block 42 includes three short rods 421 and one long rod 422. The three short rods 421 are respectively vertically connected to one long rod 422 to form a "king" character structure, and a U-shaped support strip 423 is fixed at the bottom of the long rod 422. The U-shaped support strip 423 is provided at the output end of the third lifting mechanism 41. The third lifting mechanism 41 drives the ejector block 42 to move upward, and the ejector block 42 passes through the avoidance groove 32 and jacks up. Then, during the process of the pushing mechanism 6 pushing out the upper shell located on the first conveyor line 5, the insertion piece 631 on the front side pushes out the upper shell jacked up by the ejector block 42 onto the semi-finished product rack 10.

[0068] Refer to Figure 4 In this embodiment, slideways 101 corresponding to the positions of the multiple grooves 31 are provided on the semi-finished product rack 10, which is convenient for receiving the assembled upper shells.

[0069] In a preferred embodiment, refer to Figure 12 Two material preparation stations are symmetrically arranged on both sides of the hot melting mechanism 9. Each material preparation station includes a first translation mechanism 2, a first conveyor line 5, a pushing mechanism 6, a second conveyor line 7, a pressing mechanism 8 and a semi-finished product rack 10, so as to realize that the hot melting mechanism ********** alternate melting and fixing of the upper shells and the mesh fixing frames on the two material preparation stations, and further improve the working efficiency.

[0070] In addition, the operator can sit on the side of the first translation mechanism 2 away from the hot melting mechanism 9 to observe the assembly situation of the upper shell and the mesh fixing frame. When it is found that the assembly is not in place, it can be corrected in time.

[0071] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solutions and inventive concepts of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention. It should be noted that there is an unclear part in the description of the "hot melting mechanism 9" in item where some content is missing and replaced by **********. You may need to check and correct it according to the actual situation.

Claims

1. A heat-melting fixing device for the upper shell and mesh fixing frame of a refrigerator deodorizing and sterilizing device, characterized in that, include: frame; The first translation mechanism is located on the frame, and its output end is connected to a mold for placing the upper shell and an ejector mechanism for ejecting the upper shell from the mold. The first conveyor line is located at the beginning of the conveying process of the first translation mechanism and is used to convey the upper shell. The conveying direction of the first translation mechanism is perpendicular to the conveying direction of the first conveyor line. The pushing mechanism, located on the frame, is used to push the upper shell on the first conveyor line into the mold; The second conveyor line, located on the frame, is used to convey the mesh fixing frame; The pressing mechanism, located above the second conveyor line, is used to press the mesh fixing frame on the second conveyor line into the upper shell located on the mold; A heat-fusion mechanism, located at the conveying end of the first translation mechanism, is used to heat-fuse and fix the upper shell and the partition mesh fixing frame; and, A semi-finished product rack is set on the machine frame and corresponding to the first conveyor line. The top material mechanism lifts the upper shell after it is fused with the partition net fixing frame, and the pushing material mechanism pushes the upper shell into the semi-finished product rack. The mold includes a plurality of grooves sequentially opened along the conveying direction of the first translation mechanism, the grooves being used to place the upper shell; One of the grooves is provided with one second conveyor line, and two support blocks are symmetrically hinged at the bottom of the conveying end of the second conveyor line. The support blocks are provided with a second torsion spring for resetting. The pressing mechanism includes a second lifting mechanism located above the frame and a gripping mechanism located at the output end of the second lifting mechanism. The gripping mechanism includes gripping components that match the number of gripping drive components and the number of the grooves.

2. The heat-melting fixing device for the upper shell and mesh fixing frame of the refrigerator deodorizer and sterilizer according to claim 1, characterized in that, Each groove corresponds to one of the first conveying lines. Two stops are symmetrically hinged on both sides of the conveying end of the first conveying line, and the stops are provided with a first torsion spring for resetting.

3. The heat-melting fixing device for the upper shell and mesh fixing frame of the refrigerator deodorizing and sterilizing device according to claim 1, characterized in that, The feeding mechanism is provided on the frame with a first lifting mechanism and a second translation mechanism at the output end of the first lifting mechanism. The conveying end of the second translation mechanism is connected to a push block that matches the number of grooves. The push block is provided with two inserts, and the distance between the two inserts matches the width of the upper shell.

4. The heat-melting fixing device for the upper shell and mesh fixing frame of the refrigerator deodorizer and sterilizer according to claim 1, characterized in that, Each clamping assembly includes two symmetrically arranged jaws, and the clamping drive assembly drives the two jaws to move toward or away from each other.

5. The heat-melting fixing device for the upper shell and mesh fixing frame of the refrigerator deodorizer and sterilizer according to claim 4, characterized in that, The clamping drive assembly includes a third translation mechanism and a rack located at the output end of the third translation mechanism. Gears matching the number of clamping assemblies are meshed on the rack. A symmetrical cam is fixed on each gear, and the wheel surface of the symmetrical cam acts on two grippers.

6. The heat-melting fixing device for the upper shell and mesh fixing frame of the refrigerator deodorizer and sterilizer according to claim 1, characterized in that, The hot-melting mechanism includes a support, a fourth lifting mechanism mounted on the support, a micro-lifting component mounted at the output end of the fourth lifting mechanism, and a working head with an output end of the micro-lifting component. The number of working heads matches the number of grooves.

7. The heat-melting fixing device for the upper shell and mesh fixing frame of the refrigerator deodorizer and sterilizer according to claim 1, characterized in that, The top material mechanism includes a third lifting mechanism and a top block located at the output end of the third lifting mechanism. The number of top blocks matches the number of grooves, and the bottom of the mold is provided with a clearance groove for the top blocks to pass through.

8. The heat-melting fixing device for the upper shell and mesh fixing frame of the refrigerator deodorizer and sterilizer according to any one of claims 1-7, characterized in that, The hot-melting mechanism has two symmetrical material preparation stations on both sides. Each material preparation station includes a first translation mechanism, a first conveyor line, a pushing mechanism, a second conveyor line, a pressing mechanism, and a semi-finished product rack.

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