Plastic mold changing device with quick positioning

Abstract

The utility model discloses a plastic mould replacement device with quick positioning belongs to plastic mould technical field. This kind of plastic mould replacement device with quick positioning, including main part and positioning fixed establishment, the main part includes base, upper die seat and lower die seat, and the both sides of the upper end of base are fixedly installed with a pair of slide bar, and the sliding installation of two pairs of slide bars has moving plate, and positioning fixed establishment includes a pair of moving frame, and a pair of moving frame is respectively embedded and installed in the upper end of base and the bottom of moving plate, and the opposite face of a pair of moving frame all is equipped with a pair of sliding slot, and the sliding installation of every pair of sliding slot has a pair of positioning block, and the bottom side of the opposite face of every pair of positioning block all is provided with the slot, and the bottom end both sides of upper die seat and lower die seat are respectively inserted and the sliding insertion of every pair of slot, and the opposite face of every pair of positioning block is respectively with the both sides of upper die seat and lower die seat and meets, the utility model discloses, can effectively improve the practicality of mould replacement device, has higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold technology, specifically to a plastic mold changing device with quick positioning. Background Technology

[0002] In the plastics processing industry (such as the production of daily necessities, auto parts, and electronic casings), plastic molds are the core tools for product molding. They process plastic raw materials into products of a predetermined shape through processes such as injection molding and extrusion.

[0003] Based on the above, the inventors have discovered the following problems: The current mainstream method for replacing plastic molds in the market is still mainly based on "bolt fixing + manual assisted positioning". The mold is connected to the injection molding machine template by multiple high-strength bolts. During installation, the operator needs to first lift the mold to the corresponding position of the template, manually align the bolt holes, and then tighten the bolts one by one to complete the fixing. During disassembly, the operation needs to be reversed, and the mold needs to be removed after loosening the bolts one by one. In the process of large-scale production, the time spent on each mold disassembly and assembly accumulates, which has a significant impact on the production efficiency of enterprises.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a plastic mold changing device with quick positioning, in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this utility model is to provide a plastic mold changing device with quick positioning, so as to solve the problem mentioned in the background art that the current mainstream plastic mold changing method in the market is still mainly based on "bolt fixing + manual assisted positioning".

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A plastic mold changing device with quick positioning includes a main body and a positioning and fixing mechanism. The main body includes a base, an upper mold base, and a lower mold base. A pair of sliding rods are fixedly installed on both sides of the upper end of the base, and a movable plate is slidably installed between the two pairs of sliding rods. The positioning and fixing mechanism includes a pair of movable frames, which are respectively embedded in the upper end of the base and the bottom end of the movable plate. Each pair of movable frames has a pair of sliding grooves on their facing surfaces. A pair of positioning blocks are slidably installed between each pair of sliding grooves. Each pair of positioning blocks has a slot on the bottom side of its facing surface. Each pair of slots is slidably inserted into the bottom sides of the upper mold base and the lower mold base, respectively. The facing surfaces of each pair of positioning blocks abut against the sides of the upper mold base and the lower mold base.

[0008] Furthermore, the interior of the movable frame is rotatably connected to the bottom of the slide groove, and a slider is threaded between the two ends of each pair of bidirectional screws.

[0009] The beneficial effect of adopting the above-mentioned further solution is that the bidirectional screw in the moving frame can drive the sliders at both ends to move synchronously in opposite directions, providing stable power for adjusting the spacing of the positioning blocks, ensuring that the positioning blocks are evenly clamped or released from the mold base, and avoiding uneven force on the mold base leading to displacement.

[0010] Furthermore, the top of the slider is fixedly connected to the bottom of each pair of positioning blocks, and a pressure sensor is embedded in the facing surface of each pair of positioning blocks.

[0011] The beneficial effects of adopting the above-mentioned further solution are that the slider connects to the positioning block, which can drive the positioning block to move synchronously with the screw; the pressure sensor on the positioning block can detect the clamping force on the mold base in real time, preventing the mold base from shifting due to excessively loose clamping or damaging the mold base due to excessively tight clamping, thus ensuring the safety of mold fixing.

[0012] Furthermore, a synchronization box is fixedly installed at one end of each of the mobile frames, and a pair of synchronization wheels are rotatably connected to the inner side of the synchronization box.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the synchronization box at one end of the mobile frame provides installation and protection space for the synchronization wheel, avoids external interference to the synchronization wheel, ensures stable transmission of the synchronization wheel, and provides a foundation for the synchronous rotation of the bidirectional screw.

[0014] Furthermore, one side of the central shaft of the synchronous pulley is connected to one end of each pair of bidirectional screws, and a synchronous belt is wound between each pair of synchronous pulleys.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the synchronous pulley, through the synchronous belt drive, can make the two pairs of bidirectional screws in the same moving frame rotate synchronously, avoiding deviation caused by the asynchronous movement of the positioning block of the mold base, and improving the positioning accuracy.

[0016] Furthermore, a servo motor is fixedly installed on one side of each of the synchronization boxes, and the output end of the servo motor is connected to one of the synchronization pulleys via a transmission.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the servo motor provides power to the synchronous wheel, which can control the speed and rotation angle of the synchronous wheel, thereby adjusting the moving distance and clamping force of the positioning block, realizing the automation and precision control of mold fixing, and reducing human operation errors.

[0018] Furthermore, a top plate is fixedly installed at the top of the slide rod, and hydraulic telescopic rods are inserted into both sides of the upper end of the top plate. The output ends of the hydraulic telescopic rods are fixedly connected to both sides of the upper end of the movable plate, respectively.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the top plate at the top of the slide bar provides an installation base for the hydraulic telescopic rod. The hydraulic telescopic rod can drive the moving plate to rise and fall smoothly along the slide bar, thereby driving the upper mold base and the lower mold base to accurately close or open the mold, which is suitable for the automated production needs of plastic molds and improves production efficiency.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: The plastic mold changing device with quick positioning provides sliding support for the moving plate through the base and slide rod of the main body. The moving frame of the positioning and fixing mechanism guides the positioning block to slide through the slide groove. The slot of the positioning block can quickly guide the upper mold base and the lower mold base. At the same time, the positioning block abuts against both sides of the mold base to achieve lateral fixation. The whole device combines quick positioning and mechanical clamping, which shortens the plastic mold changing time and improves the mold installation efficiency and accuracy. The bidirectional screw in the moving frame can drive the sliders at both ends to move synchronously in opposite directions, providing stable power for the spacing adjustment of the positioning blocks, ensuring that the positioning blocks clamp or release the mold base evenly, and avoiding the displacement caused by uneven force on the mold base. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the plastic mold changing device with rapid positioning disclosed in an embodiment of the present invention. Figure 1 ;

[0022] Figure 2 This is a three-dimensional structural diagram of the plastic mold changing device with rapid positioning disclosed in an embodiment of the present invention. Figure 2 ;

[0023] Figure 3 This is a three-dimensional structural diagram of the positioning block and lower mold base of the plastic mold changing device with quick positioning disclosed in an embodiment of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the upper mold base, lower mold base, and positioning block of the plastic mold changing device with quick positioning disclosed in an embodiment of this utility model;

[0025] Figure 5 This is a top sectional view of the movable frame and synchronization box of the plastic mold changing device with rapid positioning disclosed in an embodiment of this utility model.

[0026] In the diagram: 1. Main body; 101. Base; 102. Slide rod; 103. Top plate; 104. Upper mold base; 105. Hydraulic telescopic rod; 106. Lower mold base; 107. Moving plate; 2. Positioning and fixing mechanism; 201. Moving frame; 202. Slide groove; 203. Positioning block; 204. Synchronous box; 205. Servo motor; 206. Slot; 207. Bidirectional screw; 208. Slider; 209. Synchronous pulley; 210. Synchronous belt. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a plastic mold changing device with quick positioning, comprising a main body 1 and a positioning and fixing mechanism 2. The main body 1 includes a base 101, an upper mold base 104, and a lower mold base 106. A pair of sliding rods 102 are fixedly installed on both sides of the upper end of the base 101, and a movable plate 107 is slidably installed between the two pairs of sliding rods 102. The positioning and fixing mechanism 2 includes a pair of movable frames 201, which are respectively embedded in and installed on the base 101. At the top and bottom of the movable plate 107, a pair of sliding grooves 202 are provided on the facing surfaces of a pair of movable frames 201. A pair of positioning blocks 203 are slidably installed between each pair of sliding grooves 202. A slot 206 is opened on the bottom side of the facing surface of each pair of positioning blocks 203. Each pair of slots 206 is slidably inserted into the bottom sides of the upper mold base 104 and the lower mold base 106 respectively. The facing surfaces of each pair of positioning blocks 203 abut against the sides of the upper mold base 104 and the lower mold base 106 respectively.

[0029] As an embodiment of this utility model, further, the bottom end of the sliding groove 202 inside the movable frame 201 is rotatably connected with a bidirectional screw 207, and a slider 208 is threaded between the two ends of each pair of bidirectional screws 207. The bidirectional screws 207 inside the movable frame 201 can drive the sliders 208 at both ends to move synchronously in opposite directions, providing stable power for adjusting the spacing of the positioning blocks 203, ensuring that the positioning blocks 203 clamp or loosen the mold base evenly, and avoiding uneven force on the mold base leading to displacement.

[0030] As an embodiment of this utility model, the top end of the slider 208 is fixedly connected to the bottom end of each pair of positioning blocks 203. Each pair of positioning blocks 203 has a pressure sensor embedded in its facing surface. The slider 208 connects to the positioning blocks 203 and can drive the positioning blocks 203 to move synchronously with the screw. The pressure sensor on the positioning block 203 can detect the clamping force on the mold base in real time, preventing the mold base from shifting due to excessively loose clamping or damaging the mold base due to excessively tight clamping, thus ensuring the safety of mold fixing.

[0031] As an embodiment of this utility model, a synchronization box 204 is fixedly installed at one end of the movable frame 201. A pair of synchronization wheels 209 are rotatably connected to the inner side of the synchronization box 204. The synchronization box 204 at one end of the movable frame 201 provides installation and protection space for the synchronization wheels 209, avoids external interference to the synchronization wheels 209, ensures stable transmission of the synchronization wheels 209, and provides a basis for the synchronous rotation of the bidirectional screw 207.

[0032] As an embodiment of this utility model, the central shaft on one side of the synchronous wheel 209 is connected to one end of each pair of bidirectional screws 207. A synchronous belt 210 is wound around each pair of synchronous wheels 209. The synchronous wheels 209 are driven by the synchronous belt 210, which enables the two pairs of bidirectional screws 207 in the same moving frame 201 to rotate synchronously, avoiding deviation caused by asynchronous movement of the positioning block 203 in the mold base, and improving the positioning accuracy.

[0033] As an embodiment of this utility model, a servo motor 205 is fixedly installed on one side of the synchronization box 204. The output end of the servo motor 205 is connected to one of the synchronization wheels 209. The servo motor 205 provides power to the synchronization wheel 209 and can control the speed and rotation angle of the synchronization wheel 209, thereby adjusting the moving distance and clamping force of the positioning block 203, realizing the automation and precision control of mold fixing, and reducing manual operation errors.

[0034] As an embodiment of this utility model, a top plate 103 is fixedly installed at the top of the slide rod 102. Hydraulic telescopic rods 105 are inserted into both sides of the upper end of the top plate 103. The output ends of the hydraulic telescopic rods 105 are fixedly connected to both sides of the upper end of the moving plate 107. The top plate 103 at the top of the slide rod 102 provides a mounting base for the hydraulic telescopic rods 105. The hydraulic telescopic rods 105 can drive the moving plate 107 to rise and fall smoothly along the slide rod 102, thereby driving the upper mold base 104 and the lower mold base 106 to accurately close or open the mold, adapting to the automated production needs of plastic molds and improving production efficiency.

[0035] Specifically, the working principle of this plastic mold changing device with quick positioning is as follows: First, replace the lower mold base 106. Insert the lower mold base 106 into the slots 206 of the positioning block 203 on the moving frame 201 of the base 101 along both sides of its bottom end, and push it in all the way. Start the servo motor 205 of the synchronization box 204, which drives one of the synchronous pulleys 209 to rotate. This drives the other synchronous pulley 209 and the connected bidirectional screw 207 to rotate synchronously via the synchronous belt 210. The bidirectional screw 207 drives the slider 208 and the positioning block 203 to move towards each other along the slide groove 202. The positioning block 203 abuts against both sides of the lower mold base 106, and their facing surfaces... The pressure sensor monitors the clamping force in real time, and the servo motor 205 stops when the set value is reached. Similarly, the upper mold base 104 is positioned and fixed by the moving frame 201 at the bottom of the moving plate 107. Then, the hydraulic telescopic rod 105 on the top plate 103 is activated to push the moving plate 107 down along the slide rod 102, which drives the upper mold base 104 and the lower mold base 106 to close precisely. After the mold is used, the hydraulic telescopic rod 105 drives the moving plate 107 to rise and open the mold. The servo motor 205 is activated in the opposite direction to separate the positioning block 203, so that the old mold can be removed and replaced with a new mold. The whole process achieves efficient replacement and stable fixation of plastic molds through rapid positioning and automated clamping.

[0036] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

Claims

1. A plastic mold changing device with quick positioning, characterized in that, The system includes a main body (1) and a positioning and fixing mechanism (2). The main body (1) includes a base (101), an upper mold base (104), and a lower mold base (106). A pair of sliding rods (102) are fixedly installed on both sides of the upper end of the base (101), and a movable plate (107) is slidably installed between the two pairs of sliding rods (102). The positioning and fixing mechanism (2) includes a pair of movable frames (201), which are respectively embedded in the upper end of the base (101) and the bottom end of the movable plate (107). Each pair of movable frames (201) has a pair of sliding grooves (202) on their facing surfaces. A pair of positioning blocks (203) are slidably installed between each pair of sliding grooves (202). Each pair of positioning blocks (203) has a slot (206) on the bottom side of their facing surfaces. Each pair of slots (206) is slidably inserted into the bottom sides of the upper mold base (104) and the lower mold base (106). The facing surfaces of each pair of positioning blocks (203) abut against the sides of the upper mold base (104) and the lower mold base (106).

2. The plastic mold changing device with quick positioning according to claim 1, characterized in that, The interior of the movable frame (201) is rotatably connected to the bottom end of the slide groove (202) with a bidirectional screw (207), and a slider (208) is threaded between the two ends of each pair of bidirectional screws (207).

3. The plastic mold changing device with quick positioning according to claim 2, characterized in that, The top of each pair of sliders (208) is fixedly connected to the bottom of each pair of positioning blocks (203), and a pressure sensor is embedded in the facing surface of each pair of positioning blocks (203).

4. A plastic mold changing device with quick positioning according to claim 3, characterized in that, One end of each of the mobile frames (201) is fixedly equipped with a synchronization box (204), and a pair of synchronization wheels (209) are rotatably connected to the inner side of the synchronization box (204).

5. A plastic mold changing device with quick positioning according to claim 4, characterized in that, One side of the central shaft of each pair of synchronous pulleys (209) is connected to one end of each pair of bidirectional screws (207), and a synchronous belt (210) is wound between each pair of synchronous pulleys (209).

6. A plastic mold changing device with quick positioning according to claim 5, characterized in that, Each of the synchronization boxes (204) is fixedly equipped with a servo motor (205) on one side, and the output end of the servo motor (205) is connected to one of the synchronization pulleys (209) for transmission.

7. A plastic mold changing device with quick positioning according to claim 1, characterized in that, A top plate (103) is fixedly installed on the top of each of the two pairs of sliding rods (102). A hydraulic telescopic rod (105) is inserted on both sides of the upper end of the top plate (103). The output ends of the hydraulic telescopic rods (105) are fixedly connected to the upper sides of the movable plate (107).

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