Quick switching positioning mechanism for injection mold

Abstract

This utility model relates to the field of mold processing technology and discloses a quick-change positioning mechanism for injection molds. It includes a base, with support frames fixedly connected to the four corners of the top wall of the base. A fixed seat is fixedly connected to the rear side of the top wall of the base, and a hydraulic rod is installed inside the fixed seat. A connecting block is fixedly connected to the front end of the hydraulic rod. In this utility model, the hydraulic rod extends and pushes out the connecting block, causing the connecting block to drive the slider to slide towards the front of the sliding column. The slider moves forward, causing crank one to pull crank two, opening the clamping plate. When the hydraulic rod retracts, it pulls the connecting block, causing the slider to move backward, thus clamping the clamping plate. The back-and-forth extension and retraction of the hydraulic rod allows the clamping plate to perform clamping and opening actions. The clamping plate can clamp the mold and hold it in place, keeping it centered. During processing, the mold remains stable and does not shift, ensuring the positional accuracy of the mold during processing.

Description

Technical Field

[0001] This utility model relates to the field of mold processing technology, and in particular to a quick switching and positioning mechanism for injection molds. Background Technology

[0002] Injection molds are a combination of various parts that form the shape of a product by feeding plastic granules into the screw barrel of an injection molding machine through a feeding system. These parts include the moving mold, the fixed mold, the cavity (concave mold), the core (punch mold), and the molding rod. The core forms the inner surface of the product, and the cavity forms the outer surface shape of the product. After the mold is closed, the core and the cavity constitute the cavity of the mold.

[0003] When making injection molds, a quick mold changing and positioning mechanism is used. This mechanism is a key part of the quick mold changing system of the injection molding machine. It ensures that the moving mold and the fixed mold can be accurately aligned when the mold is closed. It usually uses four sets of guide pillars and guide sleeves to form a guiding component. Sometimes, it is also necessary to set mutually matching inner and outer conical surfaces on the moving mold and the fixed mold respectively to assist in positioning, so as to realize the quick positioning and installation of the mold.

[0004] Existing technologies employ advanced laser ranging technology to monitor and precisely locate the mold in real time. Typically, laser emitting and receiving devices are installed on the injection molding machine template and the mold itself. The position and orientation of the mold are determined by the reflection and reception of the laser beam. This mechanism offers extremely high positioning accuracy and can adapt to molds of various complex shapes and sizes. However, the laser beam is susceptible to dust and moisture, leading to a decrease in positioning accuracy. In harsh production environments, such as injection molding workshops with high dust levels, the reliability of laser positioning is challenged. Environmental modifications to the injection molding workshop, such as enhanced ventilation and dust removal to reduce airborne dust content, and the installation of protective covers and sealing devices for the laser positioning mechanism, can prevent dust and moisture from entering the optical path system. However, the lack of clamping force and insufficient overall rigidity of the template make it prone to deformation and wear during operation, especially when fixing larger molds. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a quick switching and positioning mechanism for injection molds, which aims to improve the problems of insufficient clamping force and overall rigidity of the template in the prior art, which easily leads to deformation and wear when fixing larger molds during operation.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a quick-change positioning mechanism for injection molds, comprising a base, with support frames fixedly connected to the four corners of the top wall of the base, a fixed seat fixedly connected to the rear side of the top wall of the base, a hydraulic rod installed inside the fixed seat, a connecting block fixedly connected to the front end of the hydraulic rod, slide rails fixedly connected to the left and right ends of the front side of the fixed seat, a mold plate slidably connected to the outer wall of the slide rails, a shell installed on the top front side of the fixed seat, and multiple sliding columns fixedly connected at equal intervals to the inner wall of the shell, the outer walls of the sliding columns slidably connected to... The device includes a slider connected to a connecting block. Rotating shafts are installed on the left and right sides of the inner wall of the outer casing. Crank 1 is rotatably connected to the left and right ends of the outer wall of the slider. Crank 2 is rotatably connected to the end of crank 1 and rotatably connected to the outer wall of the rotating shaft. A clamping plate is fixedly connected to the end of crank 2. A rubber plate is fixedly connected to the inner side of the clamping plate. A fixing frame is fixedly connected to the inner side of the base. Mounting seats are fixedly connected to the left and right sides of the top wall of the base. A shock-absorbing mechanism is installed on the inner side of the mounting seat. The shock-absorbing mechanism is used to reduce the vibration generated by the equipment and improve positioning accuracy.

[0007] As a further description of the above technical solution:

[0008] The damping mechanism includes a fixed block, which is fixedly connected to the top left side of the mounting base. Multiple support feet are equidistantly installed on the middle right side of the outer wall of the fixed block. A fixed plate is fixedly connected to the right end of each support foot. Multiple damping rods are equidistantly installed on the right side of the fixed plate. Springs are installed on the outer wall of each damping rod. Damping rods are installed on both the left and right ends of the right side of the fixed block. Springs are installed on the outer wall of each damping rod. A telescopic rod is installed on the middle right side of the fixed plate. A baffle is fixedly connected to the right end of both the telescopic rod and the damping rod. As a further description of the above technical solution:

[0009] A controller is installed on the right side of the outer wall of the base, and a display screen is installed on the upper middle part of the front side of the outer wall of the controller.

[0010] As a further description of the above technical solution:

[0011] Two hinges are installed on the left and right sides of the front side of the outer wall of the display screen, and a door panel is fixedly connected to the rear side of each of the hinges.

[0012] As a further description of the above technical solution:

[0013] The door panel has handles fixedly connected to the left and right ends of the front side of the outer wall, and anti-slip sleeves are rotatably connected to the outer sides of the two handles.

[0014] As a further description of the above technical solution:

[0015] Multiple lifting columns are equidistantly installed on the top of the fixed frame, and a positioning device is installed at the end of each lifting column.

[0016] As a further description of the above technical solution:

[0017] A power supply cabinet is fixedly connected to the top right side of the base.

[0018] As a further description of the above technical solution:

[0019] A pull rod is fixedly connected to the center of the front side of the mold plate.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the hydraulic rod extends and retracts to drive the connecting block to move. The connecting block pulls the slider to slide on the outer wall of the slide column. The hydraulic rod extends and pushes out the connecting block, causing the connecting block to drive the slider to slide towards the front of the slide column. The slider moves forward, causing crank one to pull crank two, causing the clamping plate to open. When the hydraulic rod retracts, it pulls the connecting block to move the slider backward, thus clamping the clamping plate. The back-and-forth extension and retraction of the hydraulic rod enables the clamping plate to perform clamping and opening actions. In this way, the clamping plate can clamp the mold and hold and fix the mold, keeping it in the center position. In this way, the mold can remain stable during processing and will not be displaced, ensuring the positional accuracy of the mold during processing.

[0022] 2. In this utility model, the vibration of the mold plate transmits the force to the baffle. The baffle shakes and compresses the telescopic rod and the second damping rod. The telescopic rod compresses the fixed plate. The fixed plate pulls the second spring and the first damping rod. The second damping rod then compresses the first spring. When the first and second springs are subjected to vibration, they undergo elastic deformation, absorbing and buffering the vibration energy. This allows the first and second damping rods to adapt to the vibration frequency of the mold plate, further improving the vibration resistance of the mold plate. It can effectively isolate the vibration generated during mold processing and avoid loosening, wear, or even damage of parts due to long-term vibration. Attached Figure Description

[0023] Figure 1 This is a perspective view of the injection mold quick-change positioning mechanism proposed in this utility model;

[0024] Figure 2 This is a front view of the injection mold quick-change positioning mechanism proposed in this utility model;

[0025] Figure 3 This is a partial structural diagram of the injection mold quick switching and positioning mechanism proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the internal structure of the injection mold quick switching positioning mechanism proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the shock absorption mechanism of the injection mold quick switching positioning mechanism proposed in this utility model.

[0028] Legend:

[0029] 1. Base; 2. Shock Absorption Mechanism; 201. Fixing Block; 202. Support Leg; 203. Spring 1; 204. Damping Rod 1; 205. Baffle; 206. Spring 2; 207. Telescopic Rod; 208. Damping Rod 2; 209. Fixing Plate; 3. Support Frame; 4. Fixing Frame; 5. Mounting Base; 6. Power Cabinet; 7. Display Screen; 8. Controller; 9. Hinge; 10. Door Panel; 11. Anti-slip Sleeve; 12. Handle; 13. Mold Plate; 14. Slide Rail; 15. Lifting Column; 16. Positioning Instrument; 17. Fixing Base; 18. Hydraulic Rod; 19. Connecting Block; 20. Outer Shell; 21. Pull Rod; 22. Clamping Plate; 23. Rubber Plate; 24. Crank 1; 25. Rotating Shaft; 26. Slider; 27. Sliding Column; 28. Crank 2. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 , Figure 3 , Figure 4This utility model provides an embodiment of a quick-change positioning mechanism for injection molds, comprising a base 1, with support frames 3 fixedly connected to the four corners of the top wall of the base 1, a fixed seat 17 fixedly connected to the rear side of the top wall of the base 1, a hydraulic rod 18 installed on the inner side of the fixed seat 17, a connecting block 19 fixedly connected to the front end of the hydraulic rod 18, slide rails 14 fixedly connected to the left and right ends of the front side of the fixed seat 17, a mold plate 13 slidably connected to the outer wall of the slide rails 14, and a shell 20 installed on the top front side of the fixed seat 17, with the inner wall of the shell 20 being equidistantly fixed... Multiple sliding columns 27 are fixedly connected, and sliders 26 are slidably connected to the outer walls of the sliding columns 27. The sliders 26 are connected to the connecting block 19. Rotating shafts 25 are installed on the left and right sides of the inner wall of the outer shell 20. Cranks 24 are rotatably connected to the left and right ends of the outer walls of the sliders 26. Cranks 28 are rotatably connected to the ends of cranks 24. Cranks 28 are rotatably connected to the outer walls of the rotating shafts 25. A clamping plate 22 is fixedly connected to the end of cranks 28. A rubber plate 23 is fixedly connected to the inner side of the clamping plate 22. The hydraulic rod 18 drives the connecting block 19 through its telescopic movement, thereby causing the sliding column 26 to move. Block 26 slides along the outer wall of the sliding column 27. When the hydraulic rod 18 extends, it pushes the connecting block 19, causing the slider 26 to move towards the front of the sliding column 27. This action drives crank 24, which in turn pulls crank 28, causing the clamping plate 22 to open. Conversely, when the hydraulic rod 18 retracts, it pulls the connecting block 19, causing the slider 26 to move backward, resulting in the clamping plate 22 clamping. The reciprocating extension and retraction of the hydraulic rod 18 enables the clamping plate 22 to perform clamping and opening actions, thereby holding the mold and keeping it in a centered position. In this way, the mold can... To maintain stability, avoid displacement, and ensure the accuracy of mold position during processing, a fixing bracket 4 is fixedly connected to the inner side of the base 1. Mounting seats 5 are fixedly connected to the left and right sides of the top wall of the base 1. A shock-absorbing mechanism 2 is installed inside the mounting seat 5. The shock-absorbing mechanism 2 is used to reduce the impact of vibration generated by the equipment and improve positioning accuracy. A controller 8 is installed on the right side of the outer wall of the base 1. A display screen 7 is installed on the upper middle part of the front side of the outer wall of the controller 8. Two hinges 9 are installed on the left and right ends of the front side of the outer wall of the display screen 7. A door panel 10 is fixedly connected to the rear side of the multiple hinges 9.

[0032] Specifically, the hydraulic rod 18 extends and retracts, causing the connecting block 19 to move. The connecting block 19 pulls the slider 26 to slide on the outer wall of the slide column 27. The hydraulic rod 18 extends and pushes out the connecting block 19, causing the connecting block 19 to drive the slider 26 to slide towards the front of the slide column 27. The slider 26 moves forward, causing the crank 1 24 to pull the crank 28, causing the clamping plate 22 to open. When the hydraulic rod 18 retracts, it pulls the connecting block 19, causing the slider 26 to move backward, thus clamping the clamping plate 22. The back-and-forth extension and retraction of the hydraulic rod 18 allows the clamping plate 22 to perform clamping and opening actions. In this way, the clamping plate 22 can clamp the mold and hold and fix the mold, keeping it in a centered position. In this way, the mold can remain stable during processing and will not be displaced, ensuring the positional accuracy of the mold during processing.

[0033] Reference Figure 1 , Figure 2 and Figure 5 The damping mechanism 2 includes a fixed block 201, which is fixedly connected to the top left side of the mounting base 5. Multiple support feet 202 are equidistantly installed on the middle right side of the outer wall of the fixed block 201. A fixed plate 209 is fixedly connected to the right end of each support foot 202. Multiple damping rods 204 are equidistantly installed on the right side of the fixed plate 209. Springs 206 are installed on the outer wall of each damping rod 204. Damping rods 208 are installed on both the left and right ends of the right side of the fixed block 201. Springs 203 are installed on the outer wall of each damping rod 208. A telescopic rod 207 is installed on the middle right side of the fixed plate 209. A baffle 205 is fixedly connected to the right end of both the telescopic rod 207 and the damping rod 208. When the mold plate 13 vibrates, the vibration energy is transmitted to the baffle 205, causing the baffle 205 to shake. Subsequently, the telescopic rod 207 and the damping rod 208 are compressed. 07 pushes the fixed plate 209, which in turn pulls the second spring 206 and the first damping rod 204. The second damping rod 208 will also further compress the first spring 203 during the compression process. The first spring 203 and the second spring 206 undergo elastic deformation under the influence of vibration, absorbing and buffering vibration energy. This mechanism enables the first damping rod 204 and the second damping rod 208 to adapt to the frequency of vibration of the mold plate 13, thereby enhancing the vibration resistance of the mold plate 13. This effective vibration isolation measure can prevent the loosening, wear and even damage of parts caused by continuous vibration, ensuring the stability of the mold processing process and the service life of the mold. The left and right ends of the front side of the outer wall of the door panel 10 are fixedly connected to handles 12. The outer sides of the two handles 12 are rotatably connected to anti-slip sleeves 11. Multiple lifting columns 15 are equidistantly installed on the top of the fixed frame 4. The end of the lifting column 15 is equipped with a positioning device 16.

[0034] Specifically, the vibration of the mold plate 13 transmits the force to the baffle 205. The baffle 205 shakes and compresses the telescopic rod 207 and the second damping rod 208. The telescopic rod 207 compresses the fixed plate 209. The fixed plate 209 pulls the second spring 206 and the first damping rod 204. The second damping rod 208 then compresses the first spring 203. When the first spring 203 and the second spring 206 are subjected to vibration, they undergo elastic deformation, absorbing and buffering the vibration energy. This allows the first damping rod 204 and the second damping rod 208 to adapt to the vibration frequency of the mold plate 13, further improving the vibration resistance of the mold plate 13. It can effectively isolate the vibration generated during mold processing and avoid the loosening, wear, or even damage of parts due to long-term vibration.

[0035] Reference Figure 1 , Figure 2 and Figure 3 A power cabinet 6 is fixedly connected to the top right side of the base 1, and a pull rod 21 is fixedly connected to the front middle of the mold plate 13.

[0036] Specifically, power cabinet 6 distributes the input power to each branch through the busbar, and then supplies power and controls the electrical equipment through control components such as circuit breakers and contactors. When the circuit experiences overload, short circuit or other faults, the protection components will act in time to cut off the circuit and protect the equipment and personnel. At the same time, the instruments and indicator lights can monitor and display the operating status of the circuit in real time, making it convenient for operators to operate and maintain.

[0037] Working principle: The hydraulic rod 18 drives the connecting block 19 to move through its telescopic movement. Under the push of the hydraulic rod 18, the connecting block 19 pulls the slider 26 to slide along the outer wall of the slide column 27. When the hydraulic rod 18 extends, it pushes out the connecting block 19, which in turn causes the connecting block 18 to drive the slider 26 to slide towards the front of the slide column 27. The forward movement of the slider 26 further drives the crank 1 24, which in turn pulls the crank 28, thereby causing the clamping plate 22 to open. Conversely, when the hydraulic rod 18 retracts, it pulls the connecting block 19, causing the slider 26 to move backward, causing the clamping plate 22 to clamp. This reciprocating telescopic movement of the hydraulic rod 18 enables the clamping plate 22 to perform clamping and opening actions. In this way, the clamping plate 22 can clamp the mold and hold and fix the mold, keeping it in the center position. In this way, the mold can remain stable during the processing and will not be displaced, thereby ensuring the positional accuracy of the mold during the processing.

[0038] When the mold plate 13 vibrates, this vibration force is transmitted to the baffle 205. The baffle 205 shakes under the action of vibration, which in turn compresses the telescopic rod 207 and the second damping rod 208. After being compressed, the telescopic rod 207 pushes the fixed plate 209, and the fixed plate 209 pulls the second spring 206 and the first damping rod 204. During the compression process, the second damping rod 208 also further compresses the first spring 203. The first spring 203 and the second spring 206 will undergo elastic deformation under the action of vibration, absorbing and buffering the vibration energy. This mechanism allows the first damping rod 204 and the second damping rod 208 to adapt to the vibration frequency of the mold plate 13, thereby further improving the vibration resistance of the mold plate 13. This effective vibration isolation measure can avoid the loosening, wear or even damage of parts caused by long-term vibration, ensuring the stability of the mold processing process and the service life of the mold.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick switching positioning mechanism for injection mold, comprising a base (1), characterized in that: Support frames (3) are fixedly connected to the four corners of the top wall of the base (1). A fixed seat (17) is fixedly connected to the rear side of the top wall of the base (1). A hydraulic rod (18) is installed on the inner side of the fixed seat (17). A connecting block (19) is fixedly connected to the front end of the hydraulic rod (18). A slide rail (14) is fixedly connected to the left and right ends of the front side of the fixed seat (17). A mold plate (13) is slidably connected to the outer wall of the slide rail (14). A shell (20) is installed on the top front side of the fixed seat (17). Multiple sliding columns (27) are fixedly connected at equal intervals to the inner wall of the shell (20). A slider (26) is slidably connected to the outer wall of the sliding column (27). The slider (26) is connected to the connecting block (19). The inner wall of the outer casing (20) is equipped with a rotating shaft (25) on both the left and right sides. The outer wall of the slider (26) is rotatably connected to a crank (24) on both the left and right ends. The end of the crank (24) is rotatably connected to a crank (28). The crank (28) is rotatably connected to the outer wall of the rotating shaft (25). The end of the crank (28) is fixedly connected to a clamp (22). The inner side of the clamp (22) is fixedly connected to a rubber plate (23). The inner side of the base (1) is fixedly connected to a fixing frame (4). The top wall of the base (1) is fixedly connected to a mounting seat (5) on both the left and right sides. The inner side of the mounting seat (5) is equipped with a shock-absorbing mechanism (2). The shock-absorbing mechanism (2) is used to reduce the vibration of the equipment and improve the positioning accuracy.

2. The injection mold quick-change positioning mechanism according to claim 1, characterized in that: The damping mechanism (2) includes a fixed block (201), which is fixedly connected to the top left side of the mounting base (5). Multiple support feet (202) are equidistantly installed on the right side of the outer wall of the fixed block (201). A fixed plate (209) is fixedly connected to the right end of the support feet (202). Multiple damping rods (204) are equidistantly installed on the right side of the fixed plate (209). A spring (206) is installed on the outer wall of the damping rod (204). A damping rod (208) is installed on both the left and right sides of the fixed block (201). A spring (203) is installed on the outer wall of the damping rod (208). A telescopic rod (207) is installed on the right side of the fixed plate (209). A baffle (205) is fixedly connected to the right end of both the telescopic rod (207) and the damping rod (208).

3. The injection mold quick-change positioning mechanism according to claim 1, characterized in that: A controller (8) is installed on the right side of the outer wall of the base (1), and a display screen (7) is installed on the upper middle part of the front side of the outer wall of the controller (8).

4. The injection mold quick-change positioning mechanism according to claim 3, characterized in that: Two hinges (9) are installed on the left and right sides of the front side of the outer wall of the display screen (7), and a door panel (10) is fixedly connected to the rear side of the multiple hinges (9).

5. The injection mold quick-change positioning mechanism according to claim 4, characterized in that: The door panel (10) has handles (12) fixedly connected to the left and right ends of the front side of the outer wall, and anti-slip sleeves (11) are rotatably connected to the outer sides of the two handles (12).

6. The quick change positioning mechanism for injection molds of claim 1, wherein: Multiple lifting columns (15) are equidistantly installed on the top of the fixed frame (4), and a positioning device (16) is installed at the end of the lifting column (15).

7. The injection mold quick-change positioning mechanism according to claim 1, characterized in that: The power cabinet (6) is fixedly connected to the top right side of the base (1).

8. The injection mold quick-change positioning mechanism according to claim 1, characterized in that: A pull rod (21) is fixedly connected to the middle of the front side of the mold plate (13).

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