A partition cooling shoe mold and control method thereof

Abstract

The invention discloses a zoned cooling shoe mold and a control method thereof, which belongs to the field of molds and comprises a machine platform, wherein a lower mold and an upper mold are arranged on the machine platform, the lower mold comprises a bottom plate and a cavity, the bottom plate comprises a movable part and a fixed part spliced ​​to each other, the movable part and the fixed part are both provided with a cavity for molding shoes, the cavity comprises a fixed cavity slidably connected to the movable part and a movable cavity slidably connected to the fixed part, a transmission component is installed on the machine platform, the transmission component can cause the movable part to move in a direction away from the fixed cavity and at the same time cause the movable cavity to move in a direction away from the fixed part, when cooling is required, the transmission component is used to separate the components from each other, and then zoned cooling is performed, and during the zoned cooling process, the cavity will not contact the bottom plate supporting the cavity, so the bottom plate will not consume cooling energy, thereby improving the efficiency of cavity cooling and being more energy-saving.

Description

Technical Field

[0001] The invention discloses a partition cooling shoe mold and a control method thereof, belonging to the field of molds. Background Art

[0002] In the production process of existing slippers and soles, whether it is injection molding or extrusion molding, molds are required to obtain the ideal product shape.

[0003] In the process of product production, raw materials are mainly formed under high temperature and high pressure, which inevitably affects the mold due to high temperature. Therefore, the mold needs to be cooled during the operation. The main purpose of cooling is to cool the cavity of the product. The cavity of the existing mold is fixed on a thick bottom plate. During cooling, the entire heavy mold needs to be cooled at the same time. Therefore, the existence of the bottom plate will lead to low cooling efficiency of the cavity and require more energy consumption.

[0004] In view of the above problems, a new improvement scheme of a partitioned cooling shoe mold and its control method is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned problems and provide a partition cooling shoe mold and a control method thereof.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions: a partitioned cooling shoe mold and a control method thereof, including a machine platform, a lower mold and an upper mold are arranged on the machine platform, the lower mold includes a bottom plate and a cavity, the bottom plate includes a movable part and a fixed part spliced ​​with each other, the fixed part is fixedly connected to the machine platform, the movable part is symmetrically arranged on both sides of the fixed part and is slidably connected to the machine platform, the movable part and the fixed part are both provided with a cavity, a cooling groove is opened in the cavity, the cooling groove includes a water inlet and a water outlet, a water tank and a water pump connected to each other are installed on the machine platform, the water pump is connected to the water inlet and the water outlet through a conduit, the cavity includes a fixed cavity slidably connected to the movable part and a movable cavity slidably connected to the fixed part, the fixed cavity is fixedly connected to the machine platform, and a transmission component is installed on the machine platform, the transmission component can cause the movable part to move in a direction away from the fixed cavity while allowing the movable cavity to move in a direction away from the fixed part.

[0007] Preferably, the transmission assembly includes a servo motor, a rotating shaft, a threaded seat and a rack, the servo motor is fixedly installed on the machine platform, one end of the rotating shaft is rotatably connected to the machine platform, and the other end of the rotating shaft is transmission-connected to the servo motor, the threaded seat is fixedly connected to the movable part and can slide on the machine platform, the rack is slidably installed on the machine platform and one end is fixedly connected to the movable cavity, the rotating shaft is composed of two sections of threaded shafts and a transmission shaft located between the two sections of threaded shafts, the spiral lines of the threads on the two sections of the threaded shafts are in opposite directions, the threaded shaft and the threaded seat form a screw transmission, a gear is fixedly connected to the transmission shaft, and the gear is meshed with the rack for transmission.

[0008] Preferably, guide rods are fixedly connected to the movable parts on both sides, and there is a height difference between the guide rods on both sides. A guide groove is provided on the fixed part, and a through groove is provided on the movable part. The guide rod can pass through the guide groove and extend into the through groove, and the guide rod always has a part extending into the guide groove.

[0009] Preferably, the fixed cavity and the machine platform are fixedly connected via a plurality of connecting rods, and the connecting rods are hollow inside and communicated with the water inlet and the water outlet.

[0010] Preferably, a controller is installed on the machine, a temperature measuring instrument is installed in the cavity, the controller is fixedly connected to the machine, and the controller is electrically connected to the temperature measuring instrument, the servo motor and the water pump.

[0011] Preferably, position sensors are fixedly connected to the movable part, the fixed part and the movable cavity, and the position sensors are electrically connected to the controller.

[0012] Preferably, a positioning block is fixedly connected to the threaded shaft, a positioning groove is provided on the transmission shaft, and the positioning block can be embedded in the positioning groove to form a positioning.

[0013] Preferably, a track is fixedly connected to the machine platform, a plurality of rollers are rotatably connected in the track, and the threaded seat is slidably connected to the track and abuts against the rollers.

[0014] A control method for cooling a shoe mold by partitioning, comprising the following steps:

[0015] Step 1: According to the characteristics of the mold and raw materials, a predetermined temperature is input into the controller. When the cavity reaches the predetermined temperature, it is determined that cooling is required;

[0016] Step 2: After the molding operation is completed, the controller starts the temperature measuring instrument in the cavity and records the read temperature;

[0017] Step 3: Compare the read temperature with the preset temperature in step 1. If the temperature is greater than or equal to the preset temperature, proceed to step 4. If the temperature is less than the preset temperature, no cooling is required and the next operation is continued.

[0018] Step 4: At this time, the temperature inside the cavity is greater than or equal to the predetermined temperature, and cooling is required. The controller starts the servo motor to rotate the shaft. The rotation of the shaft drives the movable part of the lower mold and the movable cavity in the cavity to move, so that the various components move away from each other. Then the controller starts the water pump to make the water pump transport the coolant in the water tank to the cooling grooves in each cavity, and the temperature in the cavity is obtained again by using the temperature measuring instrument;

[0019] Step 5: After the cavity temperature cools down to below the preset temperature, the controller starts the servo motor and uses the position sensor to reset the separated components so that the next operation can be carried out.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The transmission assembly is used to separate the bottom plate supporting the cavity from each cavity, and then cool them down, so as to ensure that the coolant used to cool the cavity can be completely applied to the cavity and will not be affected by the bottom plate that is also heated at a high temperature. This improves the cooling efficiency of the coolant on the cavity, reduces the amount of coolant used, and achieves an energy-saving effect.

[0022] By setting up a controller and embedding a control method, a temperature measuring instrument is used to detect the temperature of the cavity after operation. The controller will trigger the device to cool only when the temperature in the cavity reaches a certain threshold, rather than cooling all the time, further improving the energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the hidden upper mold state of the present invention;

[0025] Figure 3 It is a schematic diagram of the displacement state of the movable part and the movable cavity of the present invention;

[0026] Figure 4 It is a schematic diagram of the bottom plate structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the machine and transmission components of the present invention;

[0028] Figure 6 It is a schematic diagram of the rotating shaft structure of the present invention;

[0029] Figure 7It is a schematic diagram of the machine platform and the fixed cavity structure of the present invention;

[0030] Figure 8 A schematic diagram of a side view structure of any cavity of the present invention;

[0031] Fig. 9 For the present invention Figure 8 Schematic diagram of the cross-sectional structure along the AA axis.

[0032] : Illustration symbols: 1. machine table; 2. base plate; 3. cavity; 4. cooling trough; 5. water tank; 6. water pump; 7. servo motor; 8. rotating shaft; 9. threaded seat; 10. rack; 11. controller; 12. track; 13. roller; 21. movable part; 22. fixed part; 23. guide rod; 24. guide groove; 25. through groove; 31. fixed cavity; 32. movable cavity; 33. connecting rod; 41. water inlet; 42. water outlet; 81. threaded shaft; 82. transmission shaft; 83. gear; 84. positioning block; 85. positioning groove. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are 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, and therefore cannot be understood as a limitation on the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 8 and Fig. 9As shown, a partition cooling shoe mold and a control method thereof include a machine 1, on which a lower mold and an upper mold are arranged, the lower mold includes a bottom plate 2 and a cavity 3, the bottom plate 2 includes a movable part 21 and a fixed part 22 spliced ​​with each other, the fixed part 22 is fixedly connected to the machine 1, the movable part 21 is symmetrically arranged on both sides of the fixed part 22 and is slidably connected to the machine 1, the movable part 21 and the fixed part 22 are both provided with a cavity 3, a cooling groove 4 is opened in the cavity 3, the cooling groove 4 includes a water inlet 41 and a water outlet 42, a water tank 5 and a water pump 6 are installed on the machine 1, and the water pump 6 is connected with the water inlet 41 and the water outlet 42 respectively through a conduit. When cooling, the water pump 6 pumps out the coolant in the water tank 5, enters the water inlet 41 through the conduit and fills the cooling groove 4, flows in the cooling groove 4 for a circle, flows along the water outlet 42 to the cold row to dissipate heat, and finally flows back to the water tank 5, thereby utilizing the cooling The liquid takes away the heat accumulated in the cavity 3, which has the effect of cooling down. The cavity 3 includes a fixed cavity 31 slidably connected to the movable part 21 and a movable cavity 32 slidably connected to the fixed part 22. The fixed cavity 31 is fixedly connected to the machine table 1, and a transmission component is installed on the machine table 1. The transmission component can cause the movable part 21 to move in a direction away from the fixed cavity 31 and at the same time allow the movable cavity 32 to move in a direction away from the fixed part 22. When the device is in use and is cooled, unlike the conventional mold in which the bottom plate 2 and the cavity 3 are integrally formed, the product uses a transmission component to separate the bottom plate 2 supporting the cavity 3 and each cavity 3 from each other, and then performs zone cooling, thereby ensuring that the coolant used to cool the cavity 3 can be fully applied to the cavity 3 and will not be affected by the bottom plate 2 which is also heated at a high temperature, thereby improving the cooling efficiency of the coolant on the cavity 3, and reducing the amount of coolant used, thereby achieving an energy-saving effect.

[0035] like Figure 2-Figure 6As shown, the transmission assembly includes a servo motor 7, a rotating shaft 8, a threaded seat 9 and a rack 10. The servo motor 7 is fixedly installed on the machine 1. One end of the rotating shaft 8 is rotatably connected to the machine 1, and the other end of the rotating shaft 8 is transmission-connected to the servo motor 7. The threaded seat 9 is fixedly connected to the movable part 21 and can slide on the machine 1. The rack 10 is slidably installed on the machine 1 and one end is fixedly connected to the movable cavity 32. The rotating shaft 8 is composed of two threaded shafts 81 and a transmission shaft 82 located between the two threaded shafts 81. The threads on the two threaded shafts 81 are connected to the movable part 21. The spiral lines of the lower mold are in opposite directions, the threaded shaft 81 and the threaded seat 9 form a screw transmission, and the transmission shaft 82 is fixedly connected with a gear 83, and the gear 83 is meshed with the rack 10 for transmission. When the transmission assembly is started to separate the components of the lower mold from each other, the servo motor 7 starts to work, and the servo motor 7 drives the rotating shaft 8 to rotate. Since the rotating shaft 8 is composed of two sections of threaded shafts 81 with opposite spiral lines and a transmission shaft 82 fixedly connected with the gear 83, when the rotating shaft 8 rotates, the gears at both ends of the rotating shaft 8 and the threaded shaft 81 are The threaded seat 9 driven by the screw will move in opposite directions, that is, move away from each other. During the movement of the threaded seat 9, since the threaded seat 9 and the movable part 21 of the base are fixedly connected, the threaded seat 9 will drive the movable part 21 of the base to move, thereby moving away from the fixed cavity 31 installed on the movable part 21 until there is no contact surface. In the process of the threaded shaft 81 rotating to drive the threaded seat 9 to move, the gear 83 on the transmission shaft 82 also rotates synchronously, so the gear 83 will drive the rack 10 meshing with it to produce linear motion. Because one end of the rack 10 is fixedly connected to the movable cavity 32 in the cavity 3, the rack 10 will drive the movable cavity 32 to rise under the transmission effect of the gear 83, thereby making the movable cavity 32 move away from the fixed part 22 in the bottom plate 2 that is fitted with it. At this time, the various components of the lower mold are separated from each other, and then cooled, the bottom plate 2 can be bypassed to cool the cavity 3 separately, thereby ensuring that the coolant can act on the cavity 3 in its entirety, and the bottom plate 2 will not be cooled at the same time during the cooling process, causing energy waste.

[0036] like Figure 4As shown, guide rods 23 are fixedly connected to the movable parts 21 on both sides, and there is a height difference between the guide rods 23 on both sides. A guide groove 24 is provided on the fixed part 22, and a through groove 25 is provided on the movable part 21. The guide rod 23 can pass through the guide groove 24 and extend into the through groove 25. The guide rod 23 always has a part extending into the guide groove 24. By providing the guide rods 23 that always have a part extending into the guide groove 24, when the movable parts 21 on both sides of the base plate 2 move, they are limited by the guide groove 24 and the guide rods 23, so that the movement process is smoother and no skew occurs. When the movable parts 21 on both sides are close to each other for splicing, the guide rod 23 passes through the guide groove 24 and extends into the through groove 25 of the movable part 21 on the other side to complete the splicing. After splicing, the guide rod 23 and the through groove 25 are used to form a limit, so that there is no misalignment between the movable part 21 and the fixed part 22.

[0037] like Figure 7 As shown, the fixed cavity 31 is fixedly connected to the machine 1 via a plurality of connecting rods 33. The connecting rods 33 are hollow inside and communicate with the water inlet 41 and the water outlet 42. The connecting rods 33 are used to support the fixed cavity 31 so that it remains fixedly connected to the machine 1. The hollow connecting rods 33 facilitate the insertion of the catheter into and access to the water inlet 41 and the water outlet 42 on the fixed cavity 31.

[0038] For example Figure 1 , Figure 2 As shown, a controller 11 is installed on the machine 1, and a temperature measuring instrument is installed in the cavity 3. The controller 11 is fixedly connected to the machine 1, and the controller 11 is electrically connected to the temperature measuring instrument, the servo motor 7 and the water pump 6. By setting the controller 11 and the temperature measuring instrument, a control method is embedded in the controller 11 in advance, and the temperature of the cavity 3 after operation is detected by the temperature measuring instrument. When the temperature in the cavity 3 reaches a certain threshold, the controller 11 will trigger the device to make the water pump 6 transport the coolant in the water tank 5 to the cooling tank 4 of the cavity 3 for cooling. For example, when foaming shoe materials of different materials, the operating temperature may be different, and the cavity 3 does not need to be cooled in any temperature range. When the temperature of the cavity 3 rises to a certain range, it needs to be cooled to ensure the quality of subsequent operations. The device uses the temperature measuring instrument and the controller 11 to identify and determine whether cooling is needed, instead of cooling all the time, thereby further improving the energy saving effect.

[0039] In addition, position sensors are fixedly connected to the movable part 21, the fixed part 22 and the movable cavity 32, and the position sensors are electrically connected to the controller 11. By setting the position sensors, the various components of the lower mold can use the position sensors to identify the position of their own movement when moving, so as to ensure the accuracy of each separation and resetting. It should be noted that the position sensor used in this product is resistant to high temperatures. Such position sensors used in harsh environments are not uncommon on the market and will not be elaborated here.

[0040] For example Figure 6 As shown, a positioning block 84 is fixedly connected to the threaded shaft 81, and a positioning groove 85 is opened on the transmission shaft 82. The positioning block 84 can be embedded in the positioning groove 85 to form a positioning. By setting the positioning block 84 and the positioning groove 85, when splicing the rotating shaft 8, the positioning block 84 of the threaded shaft 81 is embedded in the positioning groove 85 of the transmission shaft 82 and then they are fixedly connected to each other, such as welding, which is beneficial to ensure the coaxiality after connection.

[0041] For example Figure 2 , Figure 3 or Figure 5 As shown, a track 12 is fixedly connected to the machine 1, and a plurality of rollers 13 are rotatably connected in the track 12. The threaded seat 9 is slidably connected to the track 12 and abuts against the rollers 13. By providing the rollers 13 that can rotate freely, when the threaded seat 9 performs linear motion under the drive of the rotating shaft 8, the friction force between the threaded seat 9 and the track 12 is rolling friction, thereby greatly reducing the friction force and making the movement process smoother.

[0042] This product also includes a control method for cooling the shoe mold in different zones. The control method is written in the control method of the controller 11. The control method includes the following steps:

[0043] Step 1: According to the characteristics of the mold and the raw material, a predetermined temperature is input into the controller 11. When the cavity 3 reaches the predetermined temperature, it is determined that cooling is required;

[0044] Step 2: After the molding operation is completed, the controller 11 starts the temperature measuring instrument in the cavity 3 and records the read temperature;

[0045] Step 3: Compare the read temperature with the preset temperature in step 1. If the temperature is greater than or equal to the preset temperature, proceed to step 4. If the temperature is less than the preset temperature, no cooling is required and the next operation is continued.

[0046] Step 4: At this time, the temperature inside the cavity 3 is greater than or equal to the predetermined temperature and needs to be cooled. The controller 11 starts the servo motor 7 to cause the rotating shaft 8 to rotate. The rotating shaft 8 drives the movable part 21 of the lower mold and the movable cavity 32 in the cavity 3 to move, so that the various components are separated from each other. Then, the controller 11 starts the water pump 6 to make the water pump 6 transport the coolant in the water tank 5 to the cooling groove 4 in each cavity 3, and the temperature in the cavity 3 is obtained again by using the temperature measuring instrument;

[0047] Step 5: After the temperature of the cavity 3 is cooled to below the predetermined temperature, the controller 11 starts the servo motor 7 and uses the position sensor to return the separated components to their original positions, and then the next operation can be carried out.

[0048] Working principle: In the initial state, the various components of the lower mold are spliced ​​and fitted together. Before starting the operation, the predetermined temperature required for the cooling operation is input into the controller 11, and the raw materials are poured or injected into the cavity 3. Then the upper mold and the lower mold are pressed together to form the raw materials. After the operation is completed, the controller 11 starts the temperature measuring instrument to measure the temperature of the cavity 3. If the temperature is lower than the predetermined temperature, no cooling is required and the next batch of operations is continued. After the next batch of operations is completed, the temperature measuring instrument measures the temperature again. If the temperature is higher than the predetermined temperature, the controller 11 starts the servo motor 7 to rotate the shaft 8 and drive the various components of the base plate 2 and the cavity 3 away from each other, and then starts the water pump 6 to transport the coolant to each cavity 3, thereby completing the cooling.

[0049] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A zoned cooling shoe mold, comprising a machine platform, on which a lower mold and an upper mold are arranged, characterized in that: The lower mold includes a bottom plate and a cavity, the bottom plate includes a movable part and a fixed part spliced ​​with each other, the fixed part is fixedly connected to the machine, the movable part is symmetrically arranged on both sides of the fixed part and is slidably connected to the machine, the movable part and the fixed part are both provided with a cavity, a cooling groove is opened in the cavity, the cooling groove includes a water inlet and a water outlet, a water tank and a water pump that are interconnected are installed on the machine, the water pump is connected to the water inlet and the water outlet respectively through a conduit, the cavity includes a fixed cavity that is slidably connected to the movable part and a movable cavity that is slidably connected to the fixed part, the fixed cavity is fixedly connected to the machine, and a transmission assembly is installed on the machine, the transmission assembly can cause the movable part to move in a direction away from the fixed cavity while allowing the movable cavity to move in a direction away from the fixed part.

2. A zoned cooling shoe mold according to claim 1, characterized in that: The transmission assembly includes a servo motor, a rotating shaft, a threaded seat and a rack. The servo motor is fixedly installed on the machine platform. One end of the rotating shaft is rotatably connected to the machine platform, and the other end of the rotating shaft is transmission-connected to the servo motor. The threaded seat is fixedly connected to the movable part and can slide on the machine platform. The rack is slidably installed on the machine platform and one end is fixedly connected to the movable cavity. The rotating shaft is composed of two sections of threaded shafts and a transmission shaft located between the two sections of threaded shafts. The spiral lines of the threads on the two sections of the threaded shafts are in opposite directions. The threaded shaft and the threaded seat form a screw transmission. A gear is fixedly connected to the transmission shaft, and the gear is meshed with the rack for transmission.

3. The zoned cooling shoe mold according to claim 1, characterized in that: Guide rods are fixedly connected to the movable parts on both sides, and there is a height difference between the guide rods on both sides. A guide groove is provided on the fixed part, and a through groove is provided on the movable part. The guide rod can pass through the guide groove and extend into the through groove, and the guide rod always has a part extending into the guide groove.

4. The zoned cooling shoe mold according to claim 1, characterized in that: The fixed cavity is fixedly connected to the machine platform via a plurality of connecting rods, wherein the connecting rods are hollow inside and are communicated with the water inlet and the water outlet.

5. The zoned cooling shoe mold according to claim 3, characterized in that: A controller is installed on the machine platform, a temperature measuring instrument is installed in the cavity, the controller is fixedly connected to the machine platform, and the controller is electrically connected to the temperature measuring instrument, the servo motor and the water pump.

6. The zoned cooling shoe mold according to claim 5, characterized in that: The movable part, the fixed part and the movable cavity are all fixedly connected with position sensors, and the position sensors are all electrically connected to the controller.

7. The zoned cooling shoe mold according to claim 2, characterized in that: A positioning block is fixedly connected to the threaded shaft, a positioning groove is provided on the transmission shaft, and the positioning block can be embedded in the positioning groove to form a positioning.

8. The zoned cooling shoe mold according to claim 2, characterized in that: A track is fixedly connected to the platform, a plurality of rollers are rotatably connected in the track, and the threaded seat is slidably connected to the track and abuts against the rollers.

9. A control method for a zoned cooling shoe mold, used to control a zoned cooling shoe mold as described in 1-8, characterized in that: The following steps are involved: Step 1: According to the characteristics of the mold and raw materials, a predetermined temperature is input into the controller. When the cavity reaches the predetermined temperature, it is determined that cooling is required; Step 2: After the molding operation is completed, the controller starts the temperature measuring instrument in the cavity and records the read temperature; Step 3: Compare the read temperature with the preset temperature in step 1. If the temperature is greater than or equal to the preset temperature, proceed to step 4. If the temperature is less than the preset temperature, no cooling is required and the next operation is continued. Step 4: At this time, the temperature inside the cavity is greater than or equal to the predetermined temperature, and cooling is required. The controller starts the servo motor to rotate the shaft. The rotation of the shaft drives the movable part of the lower mold and the movable cavity in the cavity to move, so that the various components move away from each other. Then the controller starts the water pump to make the water pump transport the coolant in the water tank to the cooling grooves in each cavity, and the temperature in the cavity is obtained again by using the temperature measuring instrument; Step 5: After the cavity temperature cools down to below the preset temperature, the controller starts the servo motor and uses the position sensor to reset the separated components so that the next operation can be carried out.

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