Rapid cooling device for elevator hand strap forming die

Abstract

The utility model discloses a quick cooling device for an elevator hand strap forming die, which relates to the technical field of die cooling and comprises a cooling box and openings arranged on two side walls of the cooling box, vertical plates are arranged in inner cavities on two sides of the cooling box, and fixing rods are fixedly connected between the outer walls of the vertical plates and the inner cavity walls of the cooling box. A plurality of rotating rods are rotationally connected between the inner side walls of the bottoms of the two vertical plates, rollers fixedly sleeve the surfaces of rod bodies at the two ends of each rotating rod, a plurality of cooling fins are fixedly installed on the inner side walls of the tops of the vertical plates at equal intervals, a plurality of sets of cooling holes are formed in the surfaces of plate bodies of the upper ends of the vertical plates, and a movable cooling mechanism is arranged in an inner cavity of the top of the cooling box. By means of the movable cooling mechanism and under the cooperation effect of the cooling fins and the cooling holes, common heat dissipation in multiple modes is achieved, the single heat dissipation mode is avoided, the heat dissipation rate can be increased, rapid cooling can be achieved, and therefore the production cycle of elevator hand strap products is shortened.

Description

Technical Field

[0001] This utility model relates to the field of mold cooling technology, specifically a rapid cooling device for elevator handrail belt forming mold. Background Technology

[0002] The cooling device for elevator handrail belt molding molds is a device used to reduce the temperature of the molding mold and ensure that the elevator handrail belt can be cooled quickly and evenly during the molding process. The main raw material of elevator handrail belts is rubber, which generates a lot of heat during the molding process. The cooling device removes the heat from the mold by circulating coolant or using other cooling methods, keeping the mold within a suitable temperature range. This helps to improve the molding quality and dimensional accuracy of the handrail belt. Rapid cooling can shorten the molding cycle of the handrail belt, allowing the product to be ejected from the mold more quickly and enter the next production process, thereby improving production efficiency.

[0003] Chinese Patent Publication No. CN222697668U discloses a cooling device for a rubber molding die, which includes an oil tank, an oil pump that draws heat transfer oil from the oil tank into the die, and an air-cooled unit that cools the heat transfer oil flowing out of the die. A diversion system is provided between the oil pump and the air-cooled unit. In this invention, when the thermometer detects that the temperature of the heat transfer oil in the second tube exceeds a preset range, the diversion valve diverts a small amount of heat transfer oil in the second tube to the oil tank through the first diversion pipe. The cooling oil in the third tube is cooled for the first time from the outside of the third tube. The heat transfer oil in the oil tank flows into the third tube through the second diversion pipe and mixes with the heat transfer oil in the third tube, thereby completing the second cooling. After the second cooling, the temperature of the heat transfer oil mixed in the third tube is lower than that of the heat transfer oil that just entered the third tube. Subsequently, the heat transfer oil is cooled by the air-cooled unit to complete the third cooling, so that the temperature of the heat transfer oil in the oil tank no longer rises, or even falls.

[0004] However, the molding die cooling device disclosed in the above patent still has certain shortcomings in actual use. When cooling the molding die, it only uses heat transfer oil to cool the molding die. The method of cooling the molding die by relying on oil temperature is relatively simple and the rate is slow, which is not convenient for achieving rapid cooling and thus shortening the production cycle of the product. Utility Model Content

[0005] The purpose of this utility model is to provide a rapid cooling device for elevator handrail belt forming molds, so as to solve the problem mentioned in the background art that the existing cooling devices have a relatively simple cooling method, a slow rate, and are not convenient for achieving rapid cooling, thereby shortening the product production cycle.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid cooling device for an elevator handrail belt forming mold, comprising a cooling box and openings on both sides of the cooling box. Vertical plates are provided in the inner cavities on both sides of the cooling box. A fixing rod is fixedly connected between the outer wall of the vertical plate and the inner wall of the cooling box. Multiple rotating rods are rotatably connected between the bottom inner walls of the two vertical plates. Rollers are fixedly sleeved on the surfaces of both ends of the rotating rods. Multiple heat dissipation fins are equidistantly fixedly installed on the top inner wall of the vertical plate. Multiple sets of heat dissipation holes are opened on the upper surface of the vertical plate. A movable cooling mechanism is provided in the top inner cavity of the cooling box.

[0007] Preferably, the movable cooling mechanism includes a reciprocating lead screw rotatably connected between the two side walls of the inner cavity of the cooling box, a motor whose output end is connected to the end of the reciprocating lead screw is fixed to the rear side wall of the cooling box, and a guide rod is provided on one side of the reciprocating lead screw, with the two ends of the guide rod respectively fixedly connected to the two side walls of the inner cavity of the cooling box.

[0008] Preferably, the movable cooling mechanism further includes a movable seat screwed onto the surface of the reciprocating lead screw, the other end of the movable seat being slidably connected to the surface of the guide rod, a connecting column being fixedly installed on the bottom wall of the movable seat, and an mounting plate being fixedly installed on the bottom wall of the connecting column.

[0009] Preferably, the mobile cooling mechanism further includes a cooling fan installed on one side of the bottom wall of the mounting plate, and a spray pipe installed on the other side of the bottom wall of the mounting plate.

[0010] Preferably, the input end of the spray pipe is connected to a coolant pipe, and a through groove is provided on the top wall of the cooling tank, with the coolant pipe body passing through the cavity of the through groove.

[0011] Preferably, a partition is fixedly installed in the bottom inner cavity of the cooling box, and multiple through holes are evenly opened on the surface of the partition. A drain pipe is connected to one side wall of the bottom of the cooling box, and the partition is located at the bottom of the rotating rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention places the forming mold of the elevator handrail belt on the surface of the roller in the cooling box. Under the action of the rotating rod, the forming mold can be directly pushed to move on the roller surface. Furthermore, the forming mold can be quickly fed and discharged through the two openings, which helps to speed up the cooling process. Furthermore, the motor drives the reciprocating screw to rotate, and under the action of the guide rod, the moving seat moves back and forth along the reciprocating screw. During the movement, the moving seat drives the mounting plate to move back and forth via the connecting column, so that the cooling fan and spray pipe on the mounting plate can move back and forth on the top of the forming mold. During the movement of the cooling fan, it can blow out cooling air to achieve air cooling of the forming mold. When the coolant pipe supplies coolant, the spray pipe can spray coolant onto the forming mold, further accelerating the cooling speed of the elevator handrail belt forming mold. In addition, by setting heat sinks and heat dissipation holes on the vertical plate, the forming mold can be in contact with the heat sinks on both sides when it is on the roller. The heat sinks can accelerate the heat loss from the surface of the forming mold. Thus, with the combined action of the cooling fan, spray pipe, heat sinks, and heat dissipation holes, multiple heat dissipation methods are achieved, avoiding the use of a single heat dissipation method. This is beneficial to improve the heat dissipation rate and achieve rapid cooling, thereby shortening the production cycle of elevator handrail belt products. Attached Figure Description

[0014] Figure 1 This is a first-view structural schematic diagram of a rapid cooling device for an elevator handrail belt forming mold according to the present invention.

[0015] Figure 2 This is a second-view cross-sectional structural diagram of a rapid cooling device for an elevator handrail belt forming mold according to the present invention.

[0016] Figure 3 This is a third-view cross-sectional structural diagram of a rapid cooling device for an elevator handrail belt forming mold according to the present invention.

[0017] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0018] In the diagram: 1. Cooling tank; 2. Opening; 3. Partition; 4. Through hole; 5. Drain pipe; 6. Through groove; 7. Coolant pipe; 8. Motor; 9. Vertical plate; 10. Fixing rod; 11. Heat sink; 12. Heat dissipation hole; 13. Rotating rod; 14. Roller; 15. Reciprocating screw; 16. Guide rod; 17. Moving seat; 18. Connecting column; 19. Mounting plate; 20. Cooling fan; 21. Spray pipe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 This utility model provides a technical solution: a rapid cooling device for an elevator handrail belt forming mold, comprising a cooling box 1 and openings 2 on the front and rear side walls of the cooling box 1. The purpose of the openings 2 is to facilitate the entry and exit of the elevator handrail belt forming mold from the cooling box 1. Two vertical plates 9 are respectively disposed in the inner cavities on the left and right sides of the cooling box 1. A fixing rod 10 is welded between the outer wall of the vertical plate 9 and the inner wall of the cooling box 1. The side wall away from the center of the cavity between the two vertical plates 9 is the outer wall, and the side wall closer to the center of the cavity between the two vertical plates 9 is the inner wall. Multiple rotating rods 13 are rotatably connected between the bottom inner walls of the two vertical plates 9 via bearings. The left and right ends of the rotating rods 13 are respectively mounted on the surfaces of the left and right vertical plates 9 via bearings. Rollers 14 are welded and sleeved on the surfaces of the left and right ends of the rotating rods 13, so that the rollers 14 can rotate with the rotating rods 13. Multiple heat sinks 11 are equidistantly welded to the top inner wall of the vertical plate 9, and multiple sets of heat dissipation holes 12 are opened on the upper surface of the vertical plate 9, with the heat sinks 11 and heat dissipation holes 12 arranged longitudinally. A movable cooling mechanism is located in the top inner cavity of the cooling box 1.

[0021] The movable cooling mechanism includes a reciprocating lead screw 15 rotatably connected between the front and rear side walls of the inner cavity of the cooling box 1 via bearings. The rear end of the reciprocating lead screw 15 passes through the rear side wall of the cooling box 1. A motor 8 is fixed to the rear side wall of the cooling box 1 by screws, with its output end connected to the end of the reciprocating lead screw 15. The output end of the motor 8 is connected to the rear end of the reciprocating lead screw 15 via a coupling, the purpose of which is to allow the motor 8 to drive the reciprocating lead screw 15 to rotate. A guide rod 16 is located on the right side of the reciprocating lead screw 15. The front and rear ends of the guide rod 16 are welded to the front and rear side walls of the inner cavity of the cooling box 1, respectively. The movable cooling mechanism also includes a movable seat 17 screwed onto the surface of the reciprocating lead screw 15. The other end of the movable seat 17 is slidably connected to the surface of the guide rod 16, the purpose of which is to allow the movable seat 17 to reciprocate along the surface of the reciprocating lead screw 15 under the limiting and guiding action of the guide rod 16 when the reciprocating lead screw 15 rotates. The connecting column 18 is welded to the bottom wall of the movable base 17, and the mounting plate 19 is welded to the bottom wall of the connecting column 18. The movable cooling mechanism also includes a cooling fan 20 installed on the front bottom wall of the mounting plate 19, a spray pipe 21 installed on the other bottom wall of the mounting plate 19, and a coolant pipe 7 connected to the input end of the spray pipe 21. The other end of the coolant pipe 7 can be externally connected to a pump body and a coolant storage tank. A through groove 6 is opened on the top wall of the cooling box 1, and the body of the coolant pipe 7 passes through the cavity of the through groove 6. The purpose is to allow the coolant pipe 7 to move easily when the movable base 17 moves. A partition plate 3 is welded to the bottom inner cavity of the cooling box 1. Multiple through holes 4 are evenly opened on the surface of the partition plate 3. The purpose is to facilitate the collection of used coolant, so that the coolant can be stored in the bottom inner cavity of the cooling box 1 through the through holes 4. The drain pipe 5 is connected to the bottom right side wall of the cooling tank 1, and the baffle 3 is located at the bottom of the rotating rod 13. Its purpose is to facilitate the discharge of used coolant, so as to facilitate its reuse and avoid waste of resources.

[0022] In use, by placing the forming mold of the elevator handrail belt on the surface of the roller 14 in the cooling box 1, the forming mold can be moved directly on the surface of the roller 14 by the action of the rotating rod 13. The two openings 2 allow for rapid feeding and unloading of the forming mold, which helps to accelerate the cooling process. Furthermore, the motor 8 drives the reciprocating screw 15 to rotate, and the guide rod 16 causes the moving seat 17 to move back and forth along the reciprocating screw 15. During this movement, the moving seat 17 moves back and forth along the mounting plate 19 via the connecting column 18. This allows the cooling fan 20 and spray pipe 21 on the mounting plate 19 to move back and forth on the top of the forming mold. The cooling fan 20 blows cooling air to the forming mold during its movement, and the spray pipe 21 sprays coolant onto the forming mold when coolant is supplied by the coolant pipe 7, further accelerating the cooling process. The cooling speed of the elevator handrail belt forming mold is improved by setting heat sinks 11 and heat dissipation holes 12 on the vertical plate 9. When the forming mold is located on the roller 14, it can be in contact with the heat sinks 11 on both sides. The heat sinks 11 can accelerate the loss of heat from the surface of the forming mold. Thus, with the combined action of the cooling fan 20, spray pipe 21, heat sinks 11, and heat dissipation holes 12, multiple heat dissipation methods are achieved, avoiding the use of a single heat dissipation method. This is beneficial to improve the heat dissipation rate and achieve rapid cooling, thereby shortening the production cycle of elevator handrail belt products.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid cooling device for an elevator handrail belt forming mold, comprising a cooling box (1) and openings (2) on both sides of the cooling box (1), characterized in that: The cooling box (1) has vertical plates (9) on both sides of its inner cavity. A fixed rod (10) is fixedly connected between the outer wall of the vertical plate (9) and the inner wall of the cooling box (1). Multiple rotating rods (13) are rotatably connected between the bottom inner walls of the two vertical plates (9). Rollers (14) are fixedly sleeved on the surfaces of the rods at both ends of the rotating rods (13). Multiple heat sinks (11) are fixedly installed at equal intervals on the top inner wall of the vertical plate (9). Multiple sets of heat dissipation holes (12) are opened on the upper plate surface of the vertical plate (9). A movable cooling mechanism is provided in the top inner cavity of the cooling box (1).

2. The rapid cooling device for elevator handrail belt forming mold according to claim 1, characterized in that: The mobile cooling mechanism includes a reciprocating lead screw (15) rotatably connected between the two inner walls of the cooling box (1). A motor (8) with its output end connected to the end of the reciprocating lead screw (15) is fixed to the rear wall of the cooling box (1). A guide rod (16) is provided on one side of the reciprocating lead screw (15). The two ends of the guide rod (16) are respectively fixed to the two inner walls of the cooling box (1).

3. The rapid cooling device for elevator handrail belt forming mold according to claim 2, characterized in that: The movable cooling mechanism also includes a movable seat (17) screwed onto the surface of the reciprocating screw (15). The other end of the movable seat (17) is slidably connected to the surface of the guide rod (16). A connecting column (18) is fixedly installed on the bottom wall of the movable seat (17), and an mounting plate (19) is fixedly installed on the bottom wall of the connecting column (18).

4. The rapid cooling device for elevator handrail belt forming mold according to claim 3, characterized in that: The mobile cooling mechanism also includes a cooling fan (20) installed on one side of the bottom wall of the mounting plate (19), and a spray pipe (21) is installed on the other side of the bottom wall of the mounting plate (19).

5. The rapid cooling device for elevator handrail belt forming mold according to claim 4, characterized in that: The input end of the spray pipe (21) is connected to a coolant pipe (7), and a through groove (6) is provided on the top wall of the cooling box (1). The pipe body of the coolant pipe (7) passes through the cavity of the through groove (6).

6. The rapid cooling device for elevator handrail belt forming mold according to claim 1, characterized in that: A partition (3) is fixedly installed in the bottom inner cavity of the cooling box (1). Multiple through holes (4) are evenly opened on the surface of the partition (3). A drain pipe (5) is connected to one side wall of the bottom of the cooling box (1). The partition (3) is located at the bottom of the rotating rod (13).

Images