A protective cover automatic dipping and mould turning machine and protective cover production line

Abstract

The invention discloses an automatic material dipping and mold turning machine for a protective cover and a protective cover production line. A motor drives a vertical lead screw connected to both sides of a bracket to rotate, driving a top plate to rise and fall, so that a mold placed on the top plate can be automatically dipped, and then a first cylinder drives an active wheel to swing, driving a transmission wheel to rotate, so that a rotating shaft and a mold frame fixed on the rotating shaft rotate, so that the mold fixed on the mold frame after dipping can be turned over, so that the surface of the product is uniform and no tear points are formed. The machine has a high degree of automation, improves production efficiency and reduces labor intensity. A braking structure is arranged at one end of the mold turning mechanism to control the mold turning angle, so that the mold is prevented from being suddenly hit, causing the material body on the mold to be thrown off due to inertia, or causing uneven wall thickness of the protective cover.

Description

Technical Field

[0001] The present invention relates to the field of protective cover production equipment, and particularly relates to an automatic dipping and mold - turning machine for protective covers and a protective cover production line. Background Art

[0002] In the current automatic production line of protective covers, there is usually no mold - turning mechanism. For example, in the double - mold continuous automatic dipping machine disclosed in Chinese Patent CN201436182, when the automatic dipping machine produces a protective cover with a relatively long size, such as a handle cover, when the mold finishes dipping and slowly leaves the slurry, some slurry that has not had time to solidify at the tail will flow down to the top of the protective cover, forming teardrop points, making its top not smooth and resulting in unqualified products. Before the installation of the mold - turning mechanism, in order to solve the problem of dripping, only manual operation of flipping is adopted at present. However, this operation method has a high labor intensity for workers and low production efficiency.

[0003] It can be seen that the existing technology still needs to be improved. Summary of the Invention

[0004] In view of the deficiencies of the above - mentioned existing technology, the purpose of the present invention is to provide an automatic dipping and mold - turning machine for protective covers and a protective cover production line, which solve the problems that the existing protective covers have dripping after dipping, resulting in uneven wall thickness, and the low production efficiency of manual mold - turning operation.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An automatic dipping and mold - turning machine for protective covers includes a bracket, a lifting mechanism, a mold - turning mechanism, and a material box; the lifting mechanism includes lead screws rotating on both sides of the bracket, a bottom plate fixedly connected to a lead - screw nut on the lead screw, a guide post fixed on the bottom plate, a top plate fixed on the top of the guide post, and a motor fixed at the bottom of the bracket and driving the lead screw to rotate; the mold - turning mechanism includes a rotating shaft rotatably connected to the top plate at both ends and a mold holder fixed in the middle of the rotating shaft. A clamping mechanism is provided on the mold holder. One end of the rotating shaft is connected to a driving mechanism. One end of the driving mechanism is connected to a connecting plate, and both ends of the connecting plate are respectively fixed on the bottom plate and the top plate. Limiting members are provided on both sides of the rotating shaft on the top plate; the material box is arranged below the mold holder and between the two lead screws.

[0007] In the automatic dipping and mold - turning machine for protective covers, the driving mechanism includes a transmission wheel fixed at the end of the rotating shaft, a driving wheel meshing with the transmission wheel, and a first cylinder with one end hinged to an eccentric position of the driving wheel and driving the driving wheel to rotate. The other end of the first cylinder is hinged to the connecting plate, and the center of the driving wheel is rotatably connected to the top plate.

[0008] In the automatic dipping and mold - turning machine for protective covers, the driving wheel is fan - shaped, and the radius of the driving wheel is greater than the radius of the transmission wheel.

[0009] In the described automatic dipping and mold - turning machine for protective covers, the position - limiting members include a first position - limiting nail that restricts the mold rack to 0 degrees and a second position - limiting nail that restricts the mold rack to 180 degrees. Both the first position - limiting nail and the second position - limiting nail are thread - connected to the top surface of the top plate.

[0010] In the described automatic dipping and mold - turning machine for protective covers, the clamping mechanism includes a second air cylinder fixed to one side surface of the mold rack. The piston rod of the second air cylinder passes through the other side of the mold rack and a pressing plate is fixed to its end.

[0011] In the described automatic dipping and mold - turning machine for protective covers, there is also a braking structure, and the braking structure is connected to the end of the rotating shaft far from the driving mechanism.

[0012] In the described automatic dipping and mold - turning machine for protective covers, the braking structure includes a brake wheel fixed to the end of the rotating shaft. A clamp - type brake is provided on the edge of the brake wheel. The clamp - type brake is fixed to the top plate. One end of the clamp - type brake is connected to a steel cable, and the other end of the steel cable is fixed to the outer surface of the rotating shaft.

[0013] In the described automatic dipping and mold - turning machine for protective covers, a trolley is provided below the material box, and the material box is placed on the trolley.

[0014] In the described automatic dipping and mold - turning machine for protective covers, a cross - beam is also fixed to the top surface of the top plate, and a liquid - level detector extending vertically downward is connected to the middle of the cross - beam.

[0015] An automatic production line for protective covers includes a cooling box, a mold - baking box, a material - baking box, a mold - discharging rack, a linear guide rail, a machine frame, and a manipulator. The linear guide rail is fixed to the upper end of the machine frame. The described automatic dipping and mold - turning machine is also included. The mold - discharging rack, the cooling box, the mold - baking box, the material - baking box, and the automatic dipping and mold - turning machine are arranged in sequence below the linear guide rail. The manipulator is arranged on the linear guide rail, and the manipulator is used to clamp and remove the molds on the mold - discharging rack, the cooling box, the mold - baking box, the material - baking box, and the automatic dipping and mold - turning machine.

[0016] In the described automatic production line for protective covers, there is also a mold - release oil spraying structure, and the mold - release oil spraying structure is fixed between the cooling box and the mold - baking box.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] 1. The vertical lead screw connected to both sides of the bracket is driven by a motor to rotate, driving the top plate to rise and fall, so that the mold placed on the top plate can be automatically dipped, and the dipped material is fixed on the top plate through the mold turning mechanism. After the dip action is completed, the first cylinder drives the active wheel to swing, driving the transmission wheel to rotate, so that the rotating shaft and the mold frame fixed on the rotating shaft rotate, so as to realize the mold flipping after the dipped material is fixed on the mold frame, so that the slurry that flows downward due to gravity during the rising process of the mold due to uncured will flow in the opposite direction after the mold is flipped, and the mold frame is limited to the position of 0 degrees by the first limit pin and the position of 180 degrees by the second limit pin, so that its surface is uniform and no tear points are formed.

[0019] 2. By setting a brake structure at one end of the mold turning mechanism, the mold turning angle can be controlled, so that when the mold turning action is executed, the mold is turned 180 degrees and then braked to achieve limit. Since the brake pads of the clamp brake are generally made of rubber or other colloids, the mold has a certain deceleration time during the process of friction between the brake pads of the clamp brake and the brake wheel to lock, so as to avoid the mold being suddenly hit and causing the material on the mold to fall off due to inertia, or causing uneven wall thickness of the protective cover.

[0020] 3. Through the setting of the automatic dipping and mold turning machine for protective covers, the production line can realize automatic dipping and automatic mold turning at the same time, so that the surface of the produced protective covers is uniform and no tear points will be formed; and the degree of automation is high, which improves production efficiency and reduces labor intensity. Brief Description of the Figures

[0021] Figure 1 This is a three-dimensional structural diagram of the automatic dipping and mould turning machine for protective cover provided by the present invention.

[0022] Figure 2 Yes Figure 1 Enlarged view of point A.

[0023] Figure 3 This is a three-dimensional structural diagram of the protective cover automatic dipping and mold turning machine provided by the present invention from another direction.

[0024] Figure 4 Yes Figure 3 Enlarged view at B.

[0025] Figure 5 This is a top view of the brake structure.

[0026] Figure 6 This is a schematic diagram of the protective cover production line.

[0027] Main component symbols: 101-mold, 102-brake structure, 1021-brake wheel, 1022-clamp brake, 1023-steel cable, 1024-sleeve, 1025-fixing screw;

[0028] 103 - Clamping mechanism, 1031 - Second cylinder, 1032 - Pressure plate;

[0029] 104 - Trolley, 105 - Connecting plate, 106 - Lead screw, 107 - Bottom plate, 108 - Belt drive mechanism, 109 - Lead screw nut, 110 - Motor, 111 - Bracket, 112 - Guide post;

[0030] 113 - Drive mechanism, 1131 - First cylinder, 1132 - Driving wheel, 1133 - Transmission wheel, 1134 - Rotating shaft, 1135 - Bearing block, 1136 - Mold frame;

[0031] 114 - Top plate, 116 - Limiting part, 1161 - First limiting nail, 1162 - Second limiting nail;

[0032] 117 - Material box, 118 - Cross beam, 119 - Liquid level detector;

[0033] 10 - Automatic dipping and mold - turning machine for protective cover, 20 - Frame, 30 - Manipulator, 40 - Linear guide rail, 50 - Mold - removing frame, 60 - Cooling box, 70 - Mold - baking box, 80 - Material - baking box. Specific embodiments

[0034] The present invention provides an automatic dipping and mold - turning machine for protective covers and a protective cover production line. To make the purpose, technical solution and effects of the present invention clearer and more definite, the following further elaborates on the present invention with reference to the accompanying drawings and by way of examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the protection scope of the present invention.

[0035] Refer to Figure 1 and Figure 3 For an automatic dipping and mold - turning machine for protective covers, it includes a bracket 111, a lifting mechanism, a mold - turning mechanism and a material box 117; the lifting mechanism includes lead screws 106 rotatably arranged on both sides of the bracket 111, a bottom plate 107 fixedly connected to a lead screw nut 109 on the lead screw 106, guide posts 112 fixed on the bottom plate 107, a top plate 114 fixed at the top of the guide posts 112, and a motor 110 fixed at the bottom of the bracket 111 and driving the rotation of the lead screw 106; wherein, the lead screw 106 is vertically arranged, its upper and lower ends are rotatably connected to the bracket 111 through bushings, the middle threaded position of the lead screw 106 is connected to the lead screw nut 109, and the bottom plate 107 is fixed on the lead screw nut 109, and the bottom plate 107 is fixedly connected to the top plate 114 through the guide posts 112, that is, the bottom plate 107, the guide posts 112 and the top plate 114 are fixed as a whole, so that when the motor 110 drives the rotation of the lead screw 106, the top plate 114 is driven to move up and down through the lead screw nut 109, realizing the lifting of the mold - turning mechanism fixed on the top plate 114.

[0036] Among them, in order to reduce the use of the motor 110, the lead screws 106 on both sides can be connected to the same motor 110 through existing transmission methods such as a belt drive structure 108. The position of the motor 110 can be set according to actual needs. In this application, it is preferably fixed at one end of the bottom of the bracket 111 so as not to affect the installation and replacement of the material box 117 and to facilitate the installation of the belt for transmission.

[0037] In practical applications, in order to make the overall composed of the bottom plate 107, the guide posts 112, and the top plate 114 operate more smoothly during lifting, the number of lead screws 106 can be appropriately increased, or guide rods parallel to the lead screws 106 can be provided. The two ends of the guide rods are fixed to the bracket 111, and the middle part passes through the bottom plate 107. So that in addition to being restricted by the lead screws 106, the bottom plate 107 is also restricted by the guide rods.

[0038] Refer to Figure 2 , the mold turning mechanism includes a rotating shaft 1134 whose two ends are rotatably connected to the top plate 114 and a mold frame 1136 fixed in the middle of the rotating shaft 1134. Among them, the rotating shaft 1134 and the mold frame 1136 are arranged horizontally. The two ends of the rotating shaft 1134 are rotatably connected to the top plate 114 through bearing seats, and the mold frame 1136 is fixed on the surface of the rotating shaft 1134.

[0039] A clamping mechanism 103 is provided on the mold frame 1136. The clamping mechanism 103 includes a second cylinder 1031 fixed on one side surface of the mold frame 1136. The piston rod of the second cylinder 1031 passes through the other side of the mold frame 1136 and a pressing plate is fixed at the end. When the mold 101 is placed on the mold frame 1136, the second cylinder 1031 drives the piston rod to contract, so that the pressing plate clamps the mold 101 on the mold frame 1136. To prevent the mold 101 from shaking during movement and flying out during the mold turning process.

[0040] In the above, the mold frame 1136 is fixed on the outer surface of the rotating shaft 1134, and the mold frame 1136 is tangent to the outer surface of the rotating shaft 1134. Of course, the mold frame 1136 may not be tangent to the rotating shaft 1134.

[0041] Specifically, a driving mechanism 113 is connected to one end of the rotating shaft 1134. One end of the driving mechanism 113 is connected to a connecting plate 105, and the two ends of the connecting plate 105 are respectively fixed on the bottom plate 107 and the top plate 114. Among them, the driving mechanism 113 includes a transmission wheel 1133 fixed at the end of the rotating shaft 1134, a driving wheel 1132 meshing with the transmission wheel 1133, a first cylinder 1131 whose one end is hinged to the eccentric position of the driving wheel 1132 and drives the driving wheel 1132 to rotate. The other end of the first cylinder 1131 is hinged to the connecting plate 105, and the center of the driving wheel 1132 is rotatably connected to the top plate 114.

[0042] As described above, when the first cylinder 1131 expands and contracts, since the piston rod end of the first cylinder 1131 is hinged to the eccentric position of the driving wheel 1132, the driving wheel 1132 can be driven to swing around its center, so as to drive the driven wheel 1133 engaged with the driving wheel 1132 to rotate, that is, to realize the rotation of the rotating shaft 1134, and then the mold 101 on the mold frame 1136 realizes the mold turning action. Since the driving mechanism is installed on the top plate 114, when the top plate 114 moves up and down, the driving mechanism moves up and down together with the top plate 114.

[0043] Among them, in the stopped state, the center of the driving wheel 1132 is not on the axis of the first cylinder 1131. According to the mechanical principle, when the center of the driving wheel 1132 is on the axis of the first cylinder 1131, a self-locking phenomenon will occur. However, the center of the driving wheel 1132 not being on the axis of the first cylinder 1131 in the stopped state avoids the problem of being unable to start due to the self-locking phenomenon.

[0044] When the diameter of the driving wheel 1132 is less than or equal to the diameter of the driven wheel 1133, when the driven wheel 1133 rotates half a turn, the driving wheel 1132 needs to rotate half a turn or more. Therefore, at least one self-locking point needs to be passed through, and by using the continuous expansion and contraction of the first cylinder 1131 and the rotational kinetic energy of the driving wheel 1132, the action of driving the driven wheel 1133 to rotate is realized.

[0045] In a preferred embodiment, the radius of the driving wheel 1132 is greater than the radius of the driven wheel 1133. As described above, when the center of the driving wheel 1132 is on the axis of the first cylinder 1131, there will be a self-locking point. When the radius of the driving wheel 1132 is greater than the radius of the driven wheel 1133, when the driven wheel 1133 rotates half a turn, the rotation of the driving wheel 1132 is less than half a turn, and the self-locking point can be avoided, that is, by using a single extension or expansion and contraction of the first cylinder 1131, the mold turning or resetting of the mold 101 can be realized. In this embodiment, the driving wheel 1132 is fan-shaped, which can effectively reduce the weight of the driving wheel 1132 and save materials.

[0046] Refer to Figure 2 and Figure 4 、 Figure 5, a top plate 114 is provided with limit members 116 on both sides of a rotating shaft 1134. Specifically, the limit members 116 include a first limit nail 1161 that restricts the mold frame 1136 to be at 0 degrees and a second limit nail 1162 that restricts the mold frame 1136 to be at 180 degrees. Both the first limit nail 1161 and the second limit nail 1162 are fixed on the top surface of the top plate 114. Herein, 0 degrees refers to the position before mold turning after the mold impregnation is completed, at which time the mold is vertically downward. The first limit nail 1161 and the second limit nail 1162 are connected to the top surface of the top plate 114 by threads. In actual applications, the heights of the first limit nail 1161 and the second limit nail 1162 can be adjusted to realize the adjustment of the limited range of the swing angle of the mold frame 1136.

[0047] In actual applications, the first limit nail 1161 and the second limit nail 1162 can directly act on the mold frame 1136 or directly act on the fixed position of the mold 101. The latter way is adopted in the attached drawings of the specification.

[0048] Refer to Figures 3 - 5 , in a preferred embodiment, the above structure further includes a braking structure 102, and the braking structure 102 is connected to one end of the rotating shaft 1134 away from the driving mechanism. Specifically, the braking structure 102 includes a braking wheel 1021 fixed at the end of the rotating shaft 1134. A caliper brake 1022 is provided at the edge of the braking wheel 1021. The caliper brake 1022 is fixed on the top plate 114. One end of the caliper brake 1022 is connected with a steel cable 1023, and the other end of the steel cable 1023 is fixed on the outer surface of the rotating shaft 1134.

[0049] In the above braking structure 102, the caliper brake 1022 is a caliper brake 1022 structure existing for bicycle braking. Since one end of the steel cable 1023 is fixed on the outer surface of the rotating shaft 1134 and the other end is connected to the caliper brake 1022, when the rotating shaft 1134 rotates, one end of the steel cable 1023 is pulled, so that the other end pulls the caliper brake 1022 to clamp and brake the braking wheel 1021. Herein, in actual use, by adjusting the length of the steel cable 1023 at the fixed position of the caliper brake 1022 and the rotating shaft 1134, when the rotating shaft 1134 rotates to the set range, the caliper brake 1022 just clamps the braking wheel 1021.

[0050] In practical applications, since the brake pads of the clamp brake 1022 are generally made of colloids such as rubber, which have a certain compressibility, it takes a certain angle of rotation of the rotating shaft 1134 for the brake pads of the clamp brake 1022 to generate frictional force with the brake wheel 1021 until the locked state. Therefore, during the process of the brake pads of the clamp brake 1022 generating frictional force with the brake wheel 1021 until the locked state, the mold 101 has a certain deceleration time to prevent the mold 101 from being suddenly impacted, causing the material on the mold 101 to be thrown off due to inertia or resulting in uneven wall thickness of the protective sleeve. For example: taking the 180-degree mold turning as an example, when the rotating shaft 1134 rotates 120 degrees, the steel cable 1023 is tightened and the brake pads of the clamp brake 1022 start to generate friction with the brake wheel 1021. After that, the frictional force gradually increases, and the brake pads of the clamp brake 1022 are deformed by the force. When the rotating shaft 1134 rotates 180 degrees, the frictional force of the brake pads of the clamp brake 1022 on the brake wheel 1021 just overcomes the rotational force of the rotating shaft 1134 to achieve locked braking.

[0051] In practical applications, when the braking structure 102 does not lock the brake wheel 1021, the limiting member 116 also functions to ensure the range of the swing angle of the mold holder 1136. That is, during long-term use, the braking structure 102 will wear, so the limited swing range will become larger and the length of the steel cable 1023 needs to be readjusted. The setting of the limiting member 116 ensures that when the braking structure 102 wears, the range of the swing angle of the mold holder 1136 remains unchanged. And when adjusting the length of the steel cable 1023, it is also possible to swing the mold holder 1136 to the position of the second limit pin, that is, the position where the clamp brake 1022 and the brake wheel 1021 are locked, making it more convenient to adjust the steel cable 1023.

[0052] Refer to Figure 5 In a further embodiment, a sleeve 1024 is fixed between the brake wheel 1021 and the bearing seat 1135 on the rotating shaft 1134. The sleeve 1024 is provided with a fixing screw 1025, and the steel cable 1023 is connected to the fixing screw 1025. Among them, a radial screw hole is provided on the sleeve 1024, and the fixing screw 1025 is fixed in the screw hole, and the steel cable 1023 is connected to the fixing screw 1025. The fixing screw 1025 is preferably a bolt with a hole.

[0053] Refer to Figure 1 and Figure 3, specifically, the material box 117 is arranged below the mold rack 1136 and between the two lead screws 106. When the lead screws 106 drive the mold rack 1136 to drive the mold 101 to descend, the mold 101 just enters the interior of the material box 117 to realize its dipping action. When the lead screws 106 drive the mold rack 1136 to drive the mold 101 to ascend, the mold 101 moves out of the material box 117, so that the mold 101 will not hit the inner wall of the material box 117 during mold turning, avoiding affecting the execution of the mold turning action.

[0054] In a further embodiment, a cross beam 118 is further fixed on the top surface of the top plate 114, and a liquid level detector 119 extending vertically downward is connected to the middle of the cross beam 118. Among them, the length of the liquid level detector 119 matches the length of the mold 101, so that when the lead screws 106 drive the mold rack 1136 to drive the mold 101 to descend, the liquid level detector 119 also descends at the same time. Therefore, through the liquid level detector 119, it is possible to know the contact between the mold 101 and the material and the depth of the mold 101 in the material. Compared with the traditional method of setting the descending height, this method can avoid the inconsistent contact depth between the mold 101 and the material caused by the decrease of the liquid level, and further avoid the inconsistent length of the product; and by comparing the descending height of the mold 101 with the data of the liquid level detector 119, it is also possible to know the height of the liquid level, that is, after the height of the liquid level drops, when the liquid level detector 119 enters the same depth, the descending height of the mold 101 is greater. In this data comparison, since the mold turning action and the manipulator 30 clamping the workpiece both require the mold 101 to move out of the top surface position of the material box 117, the positions of the mold turning action and the manipulator 30 clamping the workpiece are used as reference points, which is convenient for data comparison. The above is the preferred solution. Of course, the length of the liquid level detector 119 can also be longer or shorter than the mold 101.

[0055] In a further preferred embodiment, a trolley 104 is arranged below the material box 117, and the material box 117 is placed on the trolley 104. During the production process, the material in the material box 117 will be consumed and some dust will be brought in. Therefore, it is necessary to frequently supplement the material or filter and purify the material. By placing the material box 117 on the trolley 104, it is convenient to pull out the material box 117 from the support 111 for material supplement, replacement or filter purification.

[0056] Refer to Figure 6, An automatic production line for protective covers, including a cooling box 60, a mold baking box 70, a material baking box 80, a mold discharging rack 50, a linear guide rail 40, a machine frame 20, and a manipulator 30. The linear guide rail 40 is fixed to the upper end of the machine frame 20. It also includes the automatic dipping and mold turning machine 10. The mold discharging rack 50, the cooling box 60, the mold baking box 70, the material baking box 80, and the automatic dipping and mold turning machine 10 are sequentially arranged below the linear guide rail 40. The manipulator 30 is arranged on the linear guide rail 40. The manipulator 30 can adopt an existing structure and is used to clamp and remove the mold 101 on the mold discharging rack 50, the cooling box 60, the mold baking box 70, the material baking box 80, and the automatic dipping and mold turning machine 10.

[0057] In the above production line, it also includes a mold release oil spraying structure, and the mold release oil spraying structure is fixed between the cooling box 60 and the mold baking box 70.

[0058] A method for producing a protective cover using the above production line includes the following steps:

[0059] a. Heating the mold 101. The manipulator 30 clamps the mold 101 from the mold discharging rack 50 and places it into the mold baking box 70, and heats the mold 101 to about 150 degrees.

[0060] a1. Spraying mold release oil before heating the mold 101.

[0061] b. Dipping the material. The manipulator 30 clamps the mold 101 from the mold baking box 70 and places it into the automatic dipping and mold turning machine. The automatic dipping and mold turning machine drives the mold rack 1136 to descend for dipping the material, and then drives the mold rack 1136 to rise to move the mold 101 out of the automatic dipping and mold turning machine.

[0062] c. Flipping the mold. The driving mold flipping mechanism of the automatic dipping and mold turning machine rotates 180 degrees to flip the mold 101. After the material dipped on the mold 101 is cured, then drives the mold flipping mechanism to rotate 180 degrees in the reverse direction.

[0063] d. Baking the material. The manipulator 30 clamps the mold 101 from the automatic dipping and mold turning machine and places it into the material baking box 80 to bake and cure the material.

[0064] e. Cooling. The manipulator 30 takes the mold 101 from the material baking box 80 and places it into the cooling box 60 for cooling. The protective cover is cooled by cooling water. Of course, other cooling methods can also be used, such as natural cooling.

[0065] f. Discharging the mold. The manipulator 30 clamps the mold 101 from the cooling box 60 and places it on the mold discharging rack 50 to separate the mold 101 from the product.

[0066] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0067] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] 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.

Claims

1. A protective cover automatic dipping and mould turning machine, characterized in that: It includes a bracket, a lifting mechanism, a mold turning mechanism and a material box; the lifting mechanism includes screw rods rotating on both sides of the bracket, a bottom plate fixedly connected to the screw nuts on the screw rods, a guide column fixed on the bottom plate, a top plate fixed on the top of the guide column, and a motor fixed at the bottom of the bracket and driving the screw rods to rotate; the mold turning mechanism includes a rotating shaft with both ends rotatably connected to the top plate and a mold frame fixed in the middle of the rotating shaft, a clamping mechanism is provided on the mold frame, one end of the rotating shaft is connected to a driving mechanism, one end of the driving mechanism is connected to a connecting plate, two ends of the connecting plate are respectively fixed to the bottom plate and the top plate, and the top plate is provided with limit members on both sides of the rotating shaft; the material box is arranged below the mold frame and between the two screw rods, the driving mechanism includes a transmission fixed at the end of the rotating shaft A driving wheel, a driving wheel meshed with a transmission wheel, a first cylinder having one end hinged to an eccentric position of the driving wheel and driving the driving wheel to rotate, the other end of the first cylinder being hinged to a connecting plate, the center of the driving wheel being rotatably connected to a top plate, a limiting member comprising a first limiting nail for limiting the mold frame to be at 0 degrees and a second limiting nail for limiting the mold frame to be at 180 degrees, the first limiting nail and the second limiting nail being both threadedly connected to the top surface of the top plate, and also comprising a braking structure, the braking structure being connected to one end of the rotating shaft away from the driving mechanism, the braking structure comprising a braking wheel fixed to the end of the rotating shaft, a caliper brake being provided on an edge of the braking wheel, the caliper brake being fixed to the top plate, one end of the caliper brake being connected to a steel cable, and the other end of the steel cable being fixed to the outer surface of the rotating shaft.

2. The automatic dipping and moulding machine for protective cover according to claim 1, characterized in that: The driving wheel is fan-shaped, and the radius of the driving wheel is greater than the radius of the transmission wheel.

3. The automatic dipping and moulding machine for protective cover according to claim 1, characterized in that: The clamping mechanism comprises a second cylinder fixed on one side of the mold frame, a piston rod of the second cylinder passes through the other side of the mold frame and a pressing plate is fixed at the end.

4. The automatic dipping and moulding machine for protective cover according to claim 1, characterized in that: A trolley is provided under the material box, and the material box is placed on the trolley.

5. The automatic dipping and moulding machine for protective cover according to claim 1, characterized in that: A crossbeam is also fixed on the top surface of the top plate, and a liquid level detector extending vertically downward is connected to the middle of the crossbeam.

6. An automatic production line for protective covers, characterized in that: The invention comprises a cooling box, a baking mold box, a baking material box, a mold ejection frame, a linear guide rail, a frame and a manipulator, wherein the linear guide rail is fixed at the upper end of the frame, and further comprises the automatic material dipping and mold turning machine as described in any one of claims 1 to 5, wherein the mold ejection frame, the cooling box, the baking mold box, the baking material box and the automatic material dipping and mold turning machine are sequentially arranged below the linear guide rail, and the manipulator is arranged on the linear guide rail, and the manipulator is used for clamping and taking out the molds on the mold frame, the cooling box, the baking mold box, the baking material box and the automatic material dipping and mold turning machine.

Images