A clamping device for plastic product mold and its use method

Abstract

The present invention discloses a clamping device for a plastic product mold and a method for using the same, comprising a top plate and a bottom plate, wherein the top plate is located on the top of the bottom plate, movable plates are provided on both sides of the bottom plate, and both ends of the bottom plate are slidably connected to the inner side surfaces of the two movable plates. The present invention pushes two movable frames to move by two clamping blocks, and the two movable frames use the movable blocks to make the two slides approach or move away, and the bottom surface of the clamping plate is always in contact with the top surface of the mold, and the elastic force of the first spring is used to limit the two sides of the top of the mold, and the two rotating frames use screws to limit the bottom of the mold, and the bottom surface of the clamping plate is used to make the top surface of the mold in a horizontal state, which can prevent the mold from deviating inside the placement groove, and conveniently use the groove to spirally separate or spirally connect the rotating frame and the bottom end of the screw, so that the mold is in a stable state during the separation and installation process, realizing the process of rapid separation and stable installation of the mold, and improving the production efficiency of plastic products.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic production, and in particular relates to a clamping device for a plastic product mold and a use method thereof. Background Art

[0002] Injection molding is a method for producing industrial products. Rubber and plastic injection molding are commonly used. Injection molding can be further divided into compression molding and die casting. During the injection molding of plastic products, the finished high-temperature plastic molded product needs to be clamped and removed for placement and molding, necessitating the use of a clamping device for the plastic mold.

[0003] When existing clamping devices are used to clamp a mold, the mold can shift during the process. In severe cases, the mold may fall from the clamping device, causing damage to the mold and the plastic product. Existing mold installation and separation processes require significant time and labor to separate and install the mold from the base, reducing the production efficiency of plastic products.

[0004] Therefore, it is necessary to invent a clamping device for plastic product molds and a method of using the same to solve the above problems. Summary of the Invention

[0005] In view of the above problems, the present invention provides a clamping device for a plastic product mold and a method of using the same to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a clamping device for a plastic product mold, comprising a top plate and a bottom plate, wherein the top plate is located on top of the bottom plate, movable plates are provided on both sides of the bottom plate, and both ends of the bottom plate are slidably connected to the inner side surfaces of the two movable plates, and both sides of the top surface of the movable plate are connected to the bottom end of a first cylinder, and the output end of the first cylinder is connected to the bottom surface of the top plate, a placement groove is provided at the center of the bottom plate, and a mold is provided at the top of the inner side of the placement groove, a fixing device is provided on the inner side of the bottom plate, and the bottom of the mold is connected to the fixing device;

[0007] A clamping device is provided at the bottom inner side of the top plate, the bottom of the clamping device corresponds to the mold, and the top end of the clamping device passes through the slide groove on the surface of the top plate, and the top end of the clamping device is slidably connected to the slide groove.

[0008] Furthermore, the clamping device includes a second cylinder, which is fixedly installed at the center of the slide, and a slider is provided at both ends of the second cylinder. The two sliders are respectively located on both sides of the slide, and the sliders are slidably connected to the grooves on the inner sides of the slide, and the output end of the second cylinder is fixedly connected to the inner side of the slider;

[0009] The centers of the two sliders are both connected with square rods, and the bottom ends of the square rods are fixedly connected with clamping plates. The two clamping plates are correspondingly arranged, and the inner sides of the two clamping plates are respectively matched with the two side ends of the mold.

[0010] Furthermore, the clamping device also includes a first movable rod and a second movable rod, which are respectively located at the bottom of both sides of the top plate, and a limiting rod is provided at the center of both side surfaces of the top plate, and the two limiting rods respectively pass through the top end of the first movable rod and the top end of the second movable rod, and the bottom ends of the first movable rod and the second movable rod are respectively provided with clamping blocks, the two clamping blocks are arranged opposite to each other, and the inner sides of the two clamping blocks are provided with convex strips, the bottom surfaces of the convex strips are flush with the bottom surface of the card plate, and the inner sides of the two clamping blocks are matched with the two sides of the mold through the convex strips.

[0011] Furthermore, the bottom of the slider is fixedly connected to a limiting frame, and an annular groove is provided on the surface of the two limiting frames, and the first movable rod and the second movable rod are respectively provided with corresponding annular grooves of the two limiting frames. The bottom end of the square rod passes through the slider and the limiting frame in sequence, and a nut is spirally sleeved on the top end of the square rod. A first spring is provided between the nut and the slider and between the limiting frame and the clamping plate, and the first spring is sleeved on the surface of the square rod.

[0012] Furthermore, the surface of the first movable rod is sleeved on one end of the first rotating plate and the second rotating plate, the surface of the second movable rod is sleeved on one end of the third rotating plate and the fourth rotating plate, the first rotating plate is at the top of the second rotating plate, the third rotating plate is at the top of the fourth rotating plate, the other end of the first rotating plate and the other end of the fourth rotating plate are both sleeved on the annular groove surface of a limiting frame, and the first rotating plate is at the top of the fourth rotating plate, the other end of the second rotating plate and the other end of the third rotating plate are both sleeved on the annular groove surface of another limiting frame, and the third rotating plate is at the top of the second rotating plate, the first rotating plate, the second rotating plate, the third rotating plate and the fourth rotating plate form a parallelogram-like structure.

[0013] Furthermore, a plurality of balls are provided between the first rotating plate and the fourth rotating plate, and between the second rotating plate and the third rotating plate. The balls are arranged in an annular shape on the outer side surface of the annular groove of the limiting frame, and the bottom of the end portion of the first rotating plate and the top surface of the end portion of the fourth rotating plate, as well as the top surface of the end portion of the second rotating plate and the top surface of the end portion of the third rotating plate are all provided with semi-annular grooves corresponding to the balls.

[0014] A plurality of first protrusions are evenly arranged on the outer side surface of the annular groove, and the first protrusions penetrate the balls.

[0015] Furthermore, the fixing device includes two slide bars, and the mold is located on top of the two slide bars, and moving blocks are provided at both ends of the two slide bars. Limiting grooves are provided inside both sides of the bottom plate, and a clamping rod is provided inside the limiting groove. The two moving blocks are both sleeved on the surface of the clamping rod, and a second spring is provided between the two moving blocks, and the second spring is sleeved on the surface of the clamping rod;

[0016] The two slide bars are both located inside the placement groove, and both ends of the placement groove are provided with through grooves corresponding to the ends of the slide bars, and the limiting groove is communicated with the placement groove through the through grooves.

[0017] Furthermore, the fixing device also includes two movable frames, and a connecting groove corresponding to the movable frame is provided on the inner side of the base plate, and both ends of the two movable frames are connected to the outer ends of the slide bar through the connecting groove, and the movable frames are arranged parallel to the slide bar, and the two movable frames are respectively located on both sides of the mold.

[0018] Furthermore, two grooves are provided on the surfaces of the two slide bars, and two rotating racks are provided between the two slide bars. A second protrusion is provided on the top of each end of the rotating rack. The rotating rack is slidably connected to the groove through the second protrusion. The two rotating racks form an "eight"-shaped structure, and a thread groove is provided at the center of the top surface of the two rotating racks. The bottom end of the mold is provided with a screw corresponding to the rotating rack, and the bottom end of the screw is threadedly connected to the thread groove.

[0019] The present invention also discloses a method for using a clamping device for a plastic product mold, comprising the following steps:

[0020] S1: When the mold needs to be clamped from the inner side of the bottom plate, the first cylinder is fixed to the top of the movable plate with screws, and the two first cylinders are started. The first cylinders work to gradually move the top plate closer to the bottom plate until the bottom surface of the convex strip is flush with the top surface of the movable frame, and then the first cylinders stop working;

[0021] S2: At this time, the second cylinder is started. The second cylinder pushes the right slider to slide inside the slot of the slide. At this time, the ends of the first rotating plate and the fourth rotating plate rotate on the surface of the annular groove of the right limiting frame, causing the first movable rod and the second movable rod to move closer together while sliding on the surfaces of the two limiting rods.

[0022] S3: When the first movable rod and the second movable rod approach each other, the two clamping blocks approach each other, and the two clamping blocks push the two movable frames toward each other, pressurizing the second spring on the surface of the clamping rod, so that the inner side surfaces of the two clamping blocks are tightly fitted with the outer side surfaces of the top side of the mold, and the convex strip is at the bottom of the top side of the mold;

[0023] S4: When the inner side of the clamping block fits with the outer side of the top side of the mold, the bottom surface of the clamping plate is separated from the top surface of the mold. The two clamping blocks are used to stabilize the two side surfaces of the mold, and the two clamping plates are used to improve the stability of the two ends of the mold, avoiding the mold from shifting during movement. It can prevent the mold from falling from the bottom of the clamping device and improve the stability of the mold during transfer and clamping.

[0024] Technical effects and advantages of the present invention:

[0025] 1. The present invention pushes two movable frames to move through two clamping blocks. The two movable frames use the moving blocks to make the two slides move closer or farther away, and the bottom surface of the card plate is always in contact with the top surface of the mold. The elastic force of the first spring is used to limit the two sides of the top of the mold. The two rotating frames use screws to limit the bottom of the mold. The bottom surface of the card plate is used to make the top surface of the mold in a horizontal state, which can prevent the mold from shifting inside the placement groove. The groove is conveniently used to spirally separate or spirally connect the rotating frame and the bottom end of the screw, so that the mold is in a stable state during the separation and installation process, realizing the process of rapid separation and stable installation of the mold, and improving the production efficiency of plastic products.

[0026] 2. The present invention uses the first spring at the bottom to make the inner sides of the two clamping plates fit correspondingly with the two side ends of the mold, thereby improving the stability of the two end portions of the mold. The inner sides of the two clamping blocks clamp the two side surfaces of the mold. The two clamping blocks are used to stabilize the two side surfaces of the mold, and the two clamping plates are used to prevent the mold from being offset during movement, thereby preventing the mold from falling from the bottom of the clamping device and improving the stability of the mold during transfer and clamping.

[0027] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 A schematic diagram of the overall three-dimensional structure of a clamping device for a plastic product mold according to an embodiment of the present invention is shown;

[0030] Figure 2 A schematic diagram of the overall top view of the clamping device for a plastic product mold according to an embodiment of the present invention is shown;

[0031] Figure 3 A schematic diagram of the three-dimensional structure of a clamping device according to an embodiment of the present invention is shown;

[0032] Figure 4 The embodiment of the present invention is shown Figure 3 A magnified view of the structure of part A;

[0033] Figure 5A schematic diagram of the overall three-dimensional structure of a fixing device according to an embodiment of the present invention is shown;

[0034] Figure 6 A schematic diagram of a cross-sectional three-dimensional structure of a bottom plate according to an embodiment of the present invention is shown;

[0035] In the figure: 1. top plate; 2. bottom plate; 3. movable plate; 4. first cylinder; 5. placement groove; 6. mold; 7. slide; 8. second cylinder; 9. slider; 10. clamping groove; 11. square rod; 12. clamping plate; 13. first movable rod; 14. second movable rod; 15. limiting rod; 16. clamping block; 17. convex strip; 18. limiting frame; 19. nut; 20. first spring; 21. first rotating plate; 22. second rotating plate; 23. third rotating plate; 24. fourth rotating plate; 25. ball; 26. semi-annular groove; 27. first convex rod; 28. slide; 29. ​​moving block; 30. clamping rod; 31. second spring; 32. through groove; 33. movable frame; 34. connecting groove; 35. strip groove; 36. rotating frame; 37. second convex rod; 38. screw. DETAILED DESCRIPTION

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0037] The present invention provides a clamping device for a plastic product mold, such as Figure 1-5 As shown, it includes a top plate 1 and a bottom plate 2. The top plate 1 is located on the top of the bottom plate 2. A movable plate 3 is provided on both sides of the bottom plate 2. The two ends of the bottom plate 2 are slidably connected to the inner sides of the two movable plates 3. The top sides of the movable plates 3 are connected to the bottom ends of the first cylinder 4. The output end of the first cylinder 4 is connected to the bottom surface of the top plate 1. A placement groove 5 is provided at the center of the bottom plate 2. A mold 6 is provided at the top of the placement groove 5. A fixing device is provided on the inside of the bottom plate 2. The bottom of the mold 6 is connected to the fixing device. A clamping device is provided at the bottom inside the top plate 1. The bottom of the clamping device corresponds to the mold 6. The top of the clamping device passes through the slide groove 7 on the surface of the top plate 1 and is slidably connected to the slide groove 7. The clamping device and the fixing device cooperate to facilitate the clamping of the mold 6 from the bottom plate 2 and also to fix the mold 6 in the bottom plate 2, thereby improving the applicability of the entire clamping device.

[0038] exist Figure 1-Figure 3In the embodiment, the clamping device includes a second cylinder 8, which is fixedly mounted at the center of the chute 7, and a slider 9 is provided at both ends of the second cylinder 8. The two sliders 9 are located on both sides of the chute 7, and the sliders 9 are slidably connected to the card slots 10 on the inner side of the chute 7. The output end of the second cylinder 8 is fixedly connected to the inner side of the slider 9. A square rod 11 is passed through the center of the two sliders 9, and a clamping plate 12 is fixedly connected to the bottom end of the square rod 11. The two clamping plates 12 are correspondingly arranged, and the inner sides of the two clamping plates 12 are respectively matched with the two side ends of the mold 6. Since the cross-section of the square rod 11 is set to be square and round, and the square rod 11 passes through the slider 9 and the limiting frame 18, the square rod 11 can only slide up and down on the inside of the slider 9, so that the concave part of the inner side of the clamping plate 12 always corresponds to the position of the two side ends of the mold 6, preventing the clamping plate 12 from rotating at the bottom end of the limiting frame 18.

[0039] exist Figure 1-Figure 3 In the embodiment, the clamping device also includes a first movable rod 13 and a second movable rod 14, which are respectively located at the bottom of both sides of the top plate 1, and a limiting rod 15 is provided at the center of both side surfaces of the top plate 1, and the two limiting rods 15 respectively pass through the top of the first movable rod 13 and the top of the second movable rod 14, and the bottom ends of the first movable rod 13 and the second movable rod 14 are respectively provided with a clamping block 16, the two clamping blocks 16 are arranged opposite to each other, and the inner sides of the two clamping blocks 16 are provided with a convex strip 17, the bottom surface of the convex strip 17 is flush with the bottom surface of the clamping plate 12, and the inner sides of the two clamping blocks 16 are respectively matched with the two side surfaces of the mold 6 through the convex strips 17. The second cylinder 8 works to push the right slider 9 to slide inside the slot 10 of the slide 7. Due to the limitation of the first movable rod 13 and the second movable rod 14 by the limiting rod 15, the right slider 9 uses the limiting frame 18 to drive the ends of the first rotating plate 21 and the fourth rotating plate 24 to move. At this time, the ends of the first rotating plate 21 and the fourth rotating plate 24 rotate on the annular groove surface of the right limiting frame 18. The first rotating plate 21 and the fourth rotating plate 24 respectively pull the first movable rod 13 and the second movable rod 14 to move during the rotation process. At this time, the first movable rod 13 and the second movable rod 14 respectively approach each other during the sliding process on the surfaces of the two limiting rods 15. The first movable rod 13 and the second movable rod 14 respectively use the second rotating plate 22 and the third rotating plate 23 to make the left slider 9 slide inside the slot 10, and the two sliders 9 move away from each other. The limitation of the first movable rod 13 and the second movable rod 14 by the limiting rod 15 facilitates the two clamping blocks 16 to move closer to or away from each other.

[0040] exist Figure 1 and Figure 3In the figure, the bottom of the slider 9 is fixedly connected to a limiting frame 18, and the surfaces of the two limiting frames 18 are provided with annular grooves, and the first movable rod 13 and the second movable rod 14 are respectively provided with corresponding annular grooves of the two limiting frames 18. The bottom end of the square rod 11 passes through the slider 9 and the limiting frame 18 in sequence, and the top end of the square rod 11 is spirally sleeved with a nut 19. A first spring 20 is provided between the nut 19 and the slider 9 and between the limiting frame 18 and the clamping plate 12, and the first spring 20 is sleeved on the surface of the square rod 11. When the inner side surface of the clamping block 16 is in contact with the outer side surface of the top side of the mold 6, the bottom surface of the card plate 12 is separated from the top surface of the mold 6, and the elastic force of the first spring 20 at the bottom rebounds, causing the two card plates 12 to move down until the bottom surface of the card plate 12 is flush with the bottom surface of the convex strip 17. The card plate 12 continues to move down under the action of gravity and the elastic force of the first spring 20 at the bottom. At this time, the card plate 12 uses the nut 19 at the top of the square rod 11 to squeeze the first spring 20 at the top, and uses the first spring 20 at the top to reduce the impact force between the card plate 12 and the top surface of the bottom plate 2. The first spring 20 can be replaced according to the actual situation of the mold 6, thereby improving the adaptability of the entire clamping device to molds 6 with different shapes.

[0041] exist Figure 1-Figure 3 In the embodiment, the surface of the first movable rod 13 is sleeved on one end of the first rotating plate 21 and the second rotating plate 22, and the surface of the second movable rod 14 is sleeved on one end of the third rotating plate 23 and the fourth rotating plate 24. The first rotating plate 21 is at the top of the second rotating plate 22, and the third rotating plate 23 is at the top of the fourth rotating plate 24. The other end of the first rotating plate 21 and the other end of the fourth rotating plate 24 are both sleeved on the surface of the annular groove of a limiting frame 18, and the first rotating plate 21 is at the top of the fourth rotating plate 24, the other end of the second rotating plate 22 and the other end of the third rotating plate 23 are both sleeved on the surface of the annular groove of another limiting frame 18, and the third rotating plate 23 is at the top of the second rotating plate 22. The first rotating plate 21, the second rotating plate 22, the third rotating plate 23 and the fourth rotating plate 24 form a parallelogram-like structure. The first rotating plate 21, the second rotating plate 22, the third rotating plate 23 and the fourth rotating plate 24 form a parallelogram-like structure, which makes it convenient for the clamping plate 12 to press down the top surface of the mold 6. At the same time, the clamping block 16 can utilize the movement of the movable frame 33, and through the cooperation of the slide bar 28 and the rotating frame 36, it is convenient to separate or screw the rotating frame 36 from the screw 38, thereby improving the stability of the mold 6 during the separation and screw connection process.

[0042] exist Figure 3 and Figure 4In the figure, a plurality of balls 25 are provided between the first rotating plate 21 and the fourth rotating plate 24, and between the second rotating plate 22 and the third rotating plate 23. The balls 25 are arranged in a ring on the outer side surface of the annular groove of the limiting frame 18. The bottom end of the first rotating plate 21 and the top end surface of the fourth rotating plate 24, as well as the top end surface of the second rotating plate 22 and the top end surface of the third rotating plate 23 are provided with semi-annular grooves 26 corresponding to the balls 25; a plurality of first protrusions 27 are evenly provided on the outer side surface of the annular groove, and the first protrusions 27 pass through the balls 25. When the first rotating plate 21 and the fourth rotating plate 24 rotate on the right side of the limiting frame 18, causing the two clamping blocks 16 to approach each other, the angle between the first rotating plate 21 and the fourth rotating plate 24 gradually decreases. The end of the first rotating plate 21 rotates clockwise on the right side of the limiting frame 18, and the end of the fourth rotating plate 24 rotates counterclockwise on the right side of the limiting frame 18. The limiting frame 18 uses multiple first protrusions 27 to limit the multiple balls 25, so that the multiple balls 25 are always evenly distributed inside the semi-annular groove 26, preventing the balls 25 from accumulating inside the semi-annular groove 26. The balls 25 create rolling friction between the first rotating plate 21 and the fourth rotating plate 24, reducing friction loss between the first rotating plate 21 and the fourth rotating plate 24 and improving the service life of the clamping device. Similarly, the use of the balls 25 can also reduce friction loss between the second rotating plate 22 and the third rotating plate 23.

[0043] exist Figure 5 and Figure 6 In the figure, the fixing device includes two slide bars 28, and the mold 6 is at the top of the two slide bars 28, and moving blocks 29 are provided at both ends of the two slide bars 28. Limiting grooves are provided inside both sides of the base plate 2, and a clamping rod 30 is provided inside the limiting groove. The two moving blocks 29 are both sleeved on the surface of the clamping rod 30, and a second spring 31 is provided between the two moving blocks 29, and the second spring 31 is sleeved on the surface of the clamping rod 30; the two slide bars 28 are both on the inner side of the placement groove 5, and the two ends of the placement groove 5 are provided with through grooves 32 corresponding to the ends of the slide bars 28, and the limiting grooves are connected with the placement groove 5 through the through grooves 32. When the two slides 28 are close to each other, the moving blocks 29 at both ends of the two slides 28 will pressurize the second spring 31. At this time, the two rotating frames 36 rotate between the two slides 28, which can separate the rotating frame 36 from the bottom end of the screw 38 by spiral. By separating the two movable frames 33, the elastic force of the second spring 31 is used to separate the two moving blocks 29 from each other. At this time, the two slides 28 gradually move away from each other. At this time, the two rotating frames 36 rotate between the two slides 28, which can make the rotating frame 36 and the bottom end of the screw 38 spirally connected, thereby realizing the process of rapid separation and stable installation of the mold 6.

[0044] exist Figure 5 and Figure 6In the embodiment, the fixing device further includes two movable frames 33. A connecting groove 34 corresponding to the movable frames 33 is provided on the inner side of the base plate 2. Both ends of the two movable frames 33 are connected to the outer ends of the slide bars 28 through the connecting groove 34. The movable frames 33 are arranged parallel to the slide bars 28, and the two movable frames 33 are respectively located on both sides of the mold 6. Two grooves 35 are provided on the surface of each of the two slide bars 28, and two rotating frames 36 are provided between the two slide bars 28. A second protrusion 37 is provided on the top of each end of the rotating frame 36. The rotating frame 36 is slidably connected to the groove 35 through the second protrusion 37. The two rotating frames 36 form an "eight"-shaped structure, and a threaded groove is provided at the center of the top surface of each of the two rotating frames 36. A screw 38 corresponding to the rotating frame 36 is provided at the bottom end of the mold 6. The bottom end of the screw 38 is threadedly connected to the threaded groove. The two movable frames 33 approach each other, and both ends of the two movable frames 33 slide inside the connecting grooves 34. At this time, the two movable blocks 29 at both ends of the movable frames 33 gradually pressurize the second springs 31 on the surface of the clamping rod 30. At the same time, the two movable blocks 29 approach each other, causing the two slide bars 28 to gradually approach each other. When the two slide bars 28 approach, the two rotating frames 36 use the second protrusions 37 at both ends to slide inside the grooves 35 on the surfaces of the two slide bars 28. At this time, the two rotating frames 36 rotate between the two slide bars 28. The rotating frames 36 rotate at the bottom ends of the screw rods 38 through the threaded grooves. The rotating frame 36 on the left rotates clockwise, and the rotating frame 36 on the right rotates counterclockwise. The spiral effect of the rotating frames 36 and the bottom ends of the screw rods 38 causes the screw rods 38 at the bottom end of the mold 6 to separate from the rotating frames 36. During the rotation process, the rotating frames 36 use the screw rods 38 to push the mold 6 upward. At this time, the inner sides of the two clamping blocks 16 are tightly fitted with the outer sides of the top side of the mold 6, and the protrusions 17 are at the bottom of the top side of the mold 6. Two clamping blocks 16 are used to clamp the two side surfaces of the mold 6, and the convex strips 17 can support the side edges of the mold 6, and two clamping plates 12 are used to improve the stability of the two ends of the mold 6, thereby avoiding the mold 6 from being offset during movement, preventing the mold 6 from falling from the bottom of the clamping device, and improving the stability of the mold 6 during the transfer and clamping process.

[0045] Working principle of the present invention:

[0046] Refer to the instruction manual Figure 1-6 When the mold 6 needs to be clamped from the inner side of the bottom plate 2, select the movable plate 3 that matches the two outer sides of the bottom plate 2, use screws to fix the first cylinder 4 on the top of the movable plate 3, and use the top plate 1 and the first cylinder 4 to limit the distance between the two movable plates 3, so that the movable plate 3 and the bottom plate 2 are slidably connected, and the two movable plates 3 are pushed to move so that the center line of the top plate 1 corresponds to the center line of the bottom plate 2. At this time, the two clamping blocks 16 are respectively matched with the two side surfaces of the mold 6 through the convex strips 17, and the inner ends of the two clamping plates 12 are respectively matched with the two side ends of the mold 6.

[0047] When clamping the mold 6, the two first cylinders 4 are started. The first cylinder 4 works to make the top plate 1 gradually approach the bottom plate 2 until the bottom surface of the convex strip 17 is flush with the top surface of the movable frame 33. The first cylinder 4 stops working and the second cylinder 8 is started. The second cylinder 8 works to push the right slider 9 to slide inside the slot 10 of the slide 7. Due to the limitation of the limiting rod 15 on the first movable rod 13 and the second movable rod 14, the right slider 9 uses the limiting frame 18 to drive the ends of the first rotating plate 21 and the fourth rotating plate 24 to move. When the ends of the first rotating plate 21 and the fourth rotating plate 24 rotate on the surface of the annular groove of the right limiting frame 18, the first rotating plate 21 and the fourth rotating plate 24 respectively pull the first movable rod 13 and the second movable rod 14 to move during the rotation process. At this time, the first movable rod 13 and the second movable rod 14 approach each other in the process of sliding on the surfaces of the two limit rods 15. The first movable rod 13 and the second movable rod 14 respectively use the second rotating plate 22 and the third rotating plate 23 to make the left slider 9 slide inside the slot 10, and the two sliders 9 move away from each other.

[0048] When the first movable rod 13 and the second movable rod 14 approach each other, the two clamping blocks 16 move closer together. When the bottom surface of the protruding strip 17 contacts the top surface of the movable frame 33, the two clamping blocks 16 continue to move closer together. When the inner surfaces of the two clamping blocks 16 contact the outer surfaces of the movable frame 33, the two clamping blocks 16 push the two movable frames 33 closer together. Both ends of the two movable frames 33 slide inside the connecting groove 34. At this time, the two movable blocks 29 at both ends of the movable frames 33 gradually pressurize the second spring 31 on the surface of the clamping rod 30. At the same time, the two movable blocks 29 move closer together, causing the two slide bars 28 to gradually move closer together. When the two slides 28 are close to each other, the two rotating racks 36 use the second protrusions 37 at both ends to slide inside the grooves 35 on the surfaces of the two slides 28. At this time, the two rotating racks 36 rotate between the two slides 28, and the rotating rack 36 rotates at the bottom end of the screw 38 through the threaded groove. The rotating rack 36 on the left rotates clockwise, and the rotating rack 36 on the right rotates counterclockwise. The spiral effect of the rotating rack 36 and the bottom end of the screw 38 causes the screw 38 at the bottom end of the mold 6 to separate from the rotating rack 36. During the rotation process, the rotating rack 36 uses the screw 38 to push the mold 6 upward. At this time, the inner side surfaces of the two clamping blocks 16 are tightly fitted with the outer side surfaces of the top side edges of the mold 6, and the protrusions 17 are at the bottom of the top side edges of the mold 6.

[0049] When the clamping block 16 moves down until the bottom surface of the convex strip 17 is flush with the top surface of the movable frame 33, the two clamping plates 12 are attached to the top surface of the mold 6. At this time, the clamping plate 12 and the limiting frame 18 cooperate to pressurize the first spring 20 at the bottom. When the two sliders 9 separate and make the two clamping blocks 16 approach each other, the two sliders 9 use the square rod 11 to make the two clamping plates 12 move away from each other, and the clamping plates 12 slide on the top surface of the mold 6. When the inner surface of the clamping block 16 is attached to the outer surface of the top side of the mold 6, the bottom surface of the clamping plate 12 is attached to the outer surface of the top side of the mold 6. The top surface of the mold 6 separates, and the elastic force of the first spring 20 at the bottom rebounds, causing the two clamps 12 to move downward until the bottom surface of the clamp 12 is flush with the bottom surface of the ridge 17. The clamp 12 continues to move downward under the action of gravity and the elastic force of the first spring 20 at the bottom. At this time, the clamp 12 uses the nut 19 at the top of the square rod 11 to squeeze the first spring 20 at the top, and uses the first spring 20 at the top to reduce the impact force between the clamp 12 and the top surface of the bottom plate 2. At this time, the inner side surfaces of the two clamps 12 correspond to the two end surfaces of the mold 6. The two clamping blocks 16 are used to stabilize the two side surfaces of the mold 6, and the two clamps 12 are used to improve the stability of the two ends of the mold 6, avoiding the mold 6 from deflecting during movement, preventing the mold 6 from falling from the bottom of the clamping device, and improving the stability of the mold 6 during transfer and clamping.

[0050] Start the first cylinder 4 and use the clamping device at the bottom inner side of the top plate 1 to drive the mold 6 to move upward. When the bottom end of the screw 38 at the bottom of the mold 6 is completely higher than the top surface of the bottom plate 2, the movable plate 3 is pushed to move, causing an offset movement between the mold 6 and the bottom plate 2, making it easier to transfer the mold 6.

[0051] When the clamping block 16 is separated from the movable frame 33, the elastic force of the second spring 31 rebounds, and the two movable frames 33 are separated from each other by the moving block 29. At this time, the two slide bars 28 are also gradually separated. The two slide bars 28 use the grooves 35 to rotate the two rotating frames 36. The rotating frame 36 on the left rotates counterclockwise, and the rotating frame 36 on the right rotates clockwise.

[0052] When the mold 6 needs to be placed back on the top of the inner side of the base plate 2, after the movable plate 3 is aligned with the two sides of the base plate 2, the movable plate 3 is pushed to move so that the center line of the top plate 1 coincides with the center line of the base plate 2, and the rotating frame 36 is pushed to move. At this time, the rotating frame 36 uses the second protrusion 37 to slide inside the groove 35 of the slide bar 28, so that the thread groove on the top surface of the rotating frame 36 corresponds to the bottom end of the screw 38, and then the mold 6 is placed inside the placement groove 5 on the inner side of the base plate 2, and the first cylinder 4 is started. The first cylinder 4 works so that the bottom surface of the clamping plate 12 fits the top surface of the mold 6.

[0053] When the bottom surface of the convex strip 17 is flush with the top surface of the movable frame 33, the second cylinder 8 is started. The second cylinder 8 works to make the slider 9 on the right side move away from the second cylinder 8. Under the limitation of the limit rod 15, the first rotating plate 21 and the fourth rotating plate 24 are used to make the two clamping blocks 16 at the bottom of the first movable rod 13 and the second movable rod 14 approach each other. When the inner side of the clamping block 16 fits the outer side of the movable frame 33, the two clamping blocks 16 make the two movable frames 33 approach each other. At this time, the two moving blocks 29 on both sides pressurize the second spring 31 during the process of approaching each other, thereby making the two slide bars 28 slide inside the through groove 32 During the movement, they gradually approach each other. At this time, the two slides 28 use the grooves 35 to rotate the two turrets 36. The turrets 36 rotate with the bottom end of the screw 38 as the center of the circle. The turret 36 on the left rotates clockwise and the turret 36 on the right rotates counterclockwise. When the clamping plate 12 slides to the sides of both ends of the mold 6, the second cylinder 8 works to make the slider 9 on the right approach the second cylinder 8. At this time, the two clamping blocks 16 separate from each other, and the second spring 31 rebounds with elastic force, and the moving block 29 is used to separate the two slides 28. At this time, the two slides 28 use the grooves 35 to make the threaded groove on the top of the turret 36 spirally sleeved on the bottom end of the screw 38. The bottom surface of the card plate 12 is always in contact with the top surface of the mold 6, and the mold 6 causes the card plate 12 to squeeze the first spring 20 at the bottom, and the elastic force of the first spring 20 is used to limit the two sides of the top of the mold 6. The two rotating frames 36 use screws 38 to limit the bottom of the mold 6, and the bottom surface of the card plate 12 is used to make the top surface of the mold 6 in a horizontal state, which can prevent the mold 6 from shifting inside the placement groove 5.

[0054] The present invention also discloses a method for using a clamping device for a plastic product mold, comprising the following steps:

[0055] S1: When the mold 6 needs to be clamped from the inner side of the bottom plate 2, the first cylinder 4 is fixed to the top of the movable plate 3 with screws, and the two first cylinders 4 are started. The first cylinders 4 work to gradually move the top plate 1 closer to the bottom plate 2 until the bottom surface of the convex strip 17 is flush with the top surface of the movable frame 33, and then the first cylinders 4 stop working;

[0056] S2: At this time, the second cylinder 8 is started, and the second cylinder 8 pushes the right slider 9 to slide inside the clamping groove 10 of the slide groove 7. At this time, the ends of the first rotating plate 21 and the fourth rotating plate 24 rotate on the surface of the annular groove of the right limiting frame 18, so that the first movable rod 13 and the second movable rod 14 are moved closer to each other while sliding on the surfaces of the two limiting rods 15;

[0057] S3: When the first movable rod 13 and the second movable rod 14 approach each other, the two clamping blocks 16 approach each other, and the two clamping blocks 16 push the two movable frames 33 toward each other, pressurizing the second spring 31 on the surface of the clamping rod 30, so that the inner side surfaces of the two clamping blocks 16 are tightly fitted with the outer side surface of the top side of the mold 6, and the convex strip 17 is at the bottom of the top side of the mold 6;

[0058] S4: When the inner side surface of the clamping block 16 is fitted with the outer side surface of the top side of the mold 6, the bottom surface of the clamping plate 12 is separated from the top surface of the mold 6. The two clamping blocks 16 are used to stabilize the two side surfaces of the mold 6, and the two clamping plates 12 are used to improve the stability of the two ends of the mold 6, thereby avoiding the mold 6 from being offset during movement, preventing the mold 6 from falling from the bottom of the clamping device, and improving the stability of the mold 6 during the transfer and clamping process.

[0059] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A clamping device for a plastic product mold, characterized in that: It comprises a top plate (1) and a bottom plate (2), wherein the top plate (1) is located on the top of the bottom plate (2), movable plates (3) are provided on both sides of the bottom plate (2), and both ends of the bottom plate (2) are slidably connected to the inner side surfaces of the two movable plates (3), and both sides of the top surface of the movable plate (3) are connected to the bottom end of the first cylinder (4), and the output end of the first cylinder (4) is connected to the bottom surface of the top plate (1), a placement groove (5) is provided at the center of the bottom plate (2), and a mold (6) is provided at the top inner side of the placement groove (5), a fixing device is provided on the inner side of the bottom plate (2), and the bottom of the mold (6) is connected to the fixing device; A clamping device is provided at the bottom inner side of the top plate (1), the bottom of the clamping device corresponds to the mold (6), and the top end of the clamping device passes through the slide groove (7) on the surface of the top plate (1), and the top end of the clamping device is slidably connected to the slide groove (7); The clamping device includes a second cylinder (8), the second cylinder (8) is fixedly installed at the center of the slide groove (7), and sliders (9) are provided at both ends of the second cylinder (8), the two sliders (9) are respectively located on both sides of the slide groove (7), and the sliders (9) are slidably connected to the slots (10) on the inner side of the side of the slide groove (7), and the output end of the second cylinder (8) is fixedly connected to the inner side of the slider (9); The centers of the two sliders (9) are both connected with a square rod (11), and the bottom ends of the square rod (11) are fixedly connected with a clamping plate (12), the two clamping plates (12) are correspondingly arranged, and the inner sides of the two clamping plates (12) are respectively matched with the two side ends of the mold (6); The clamping device further comprises a first movable rod (13) and a second movable rod (14), the first movable rod (13) and the second movable rod (14) being respectively located at the bottom of both sides of the top plate (1), a limiting rod (15) being provided at the center of both side surfaces of the top plate (1), and the two limiting rods (15) respectively pass through the top end of the first movable rod (13) and the top end of the second movable rod (14), a clamping block (16) being provided at the bottom end of the first movable rod (13) and the second movable rod (14), the two clamping blocks (16) being arranged opposite to each other, and the inner side surfaces of the two clamping blocks (16) being provided with a convex strip (17), the bottom surface of the convex strip (17) being flush with the bottom surface of the clamping plate (12), and the inner side surfaces of the two clamping blocks (16) being matched with the two side surfaces of the mold (6) through the convex strip (17).

2. The clamping device for a plastic product mold according to claim 1, characterized in that: The bottom of the slider (9) is fixedly connected to a limiting frame (18), and the surfaces of the two limiting frames (18) are both provided with annular grooves, and the first movable rod (13) and the second movable rod (14) are respectively provided with the annular grooves of the two limiting frames (18). The bottom end of the square rod (11) passes through the slider (9) and the limiting frame (18) in sequence, and the top end of the square rod (11) is spirally sleeved with a nut (19). A first spring (20) is provided between the nut (19) and the slider (9) and between the limiting frame (18) and the clamping plate (12), and the first spring (20) is sleeved on the surface of the square rod (11).

3. The clamping device for a plastic product mold according to claim 2, characterized in that: The surface of the first movable rod (13) is sleeved on one end of the first rotating plate (21) and the second rotating plate (22), and the surface of the second movable rod (14) is sleeved on one end of the third rotating plate (23) and the fourth rotating plate (24). The first rotating plate (21) is located at the top of the second rotating plate (22), and the third rotating plate (23) is located at the top of the fourth rotating plate (24). The other end of the first rotating plate (21) and the other end of the fourth rotating plate (24) are both sleeved on the surface of the annular groove of a limiting frame (18), and the first rotating plate (21) is located at the top of the fourth rotating plate (24). The other end of the second rotating plate (22) and the other end of the third rotating plate (23) are both sleeved on the surface of the annular groove of another limiting frame (18), and the third rotating plate (23) is located at the top of the second rotating plate (22). The first rotating plate (21), the second rotating plate (22), the third rotating plate (23) and the fourth rotating plate (24) form a parallelogram-like structure.

4. The clamping device for a plastic product mold according to claim 3, characterized in that: A plurality of balls (25) are provided between the first rotating plate (21) and the fourth rotating plate (24), and between the second rotating plate (22) and the third rotating plate (23). The balls (25) are arranged in an annular manner on the outer side surface of the annular groove of the limiting frame (18). The bottom end of the first rotating plate (21), the top end of the fourth rotating plate (24), the top end of the second rotating plate (22), and the top end of the third rotating plate (23) are all provided with semi-annular grooves (26) corresponding to the balls (25). A plurality of first protruding rods (27) are evenly arranged on the outer side surface of the annular groove, and the first protruding rods (27) penetrate the balls (25).

5. The clamping device for a plastic product mold according to claim 4, characterized in that: The fixing device includes two slide bars (28), and the mold (6) is located on the top of the two slide bars (28). Both ends of the two slide bars (28) are provided with moving blocks (29). The inside of both sides of the bottom plate (2) is provided with a limiting groove, and the inside of the limiting groove is provided with a clamping rod (30). The two moving blocks (29) are both sleeved on the surface of the clamping rod (30), and a second spring (31) is provided between the two moving blocks (29). The second spring (31) is sleeved on the surface of the clamping rod (30); The two slide bars (28) are both located inside the placement groove (5), and both ends of the placement groove (5) are provided with through grooves (32) corresponding to the ends of the slide bars (28), and the limiting groove is connected to the placement groove (5) through the through grooves (32).

6. The clamping device for a plastic product mold according to claim 5, characterized in that: The fixing device further comprises two movable frames (33), the inner side of the bottom plate (2) is provided with a connecting groove (34) corresponding to the movable frame (33), and both ends of the two movable frames (33) are connected to the outer end of the slide bar (28) through the connecting groove (34), and the movable frames (33) are arranged parallel to the slide bar (28), and the two movable frames (33) are respectively located on both sides of the mold (6).

7. The clamping device for a plastic product mold according to claim 6, characterized in that: Two grooves (35) are provided on the surfaces of the two slide bars (28), and two rotating racks (36) are provided between the two slide bars (28). A second protruding rod (37) is provided on the top of each end of the rotating rack (36). The rotating rack (36) is slidably connected to the groove (35) through the second protruding rod (37). The two rotating racks (36) form an "eight"-shaped structure, and a thread groove is provided at the center of the top surface of the two rotating racks (36). The bottom end of the mold (6) is provided with a screw (38) corresponding to the rotating rack (36), and the bottom end of the screw (38) is threadedly connected to the thread groove.

8. A method for using the clamping device for a plastic product mold according to claim 7, characterized in that: The following steps are involved: S1: When the mold (6) needs to be clamped from the inner side of the bottom plate (2), the first cylinder (4) is fixed to the top of the movable plate (3) by screws, and the two first cylinders (4) are started. The first cylinders (4) work so that the top plate (1) gradually approaches the bottom plate (2) until the bottom surface of the convex strip (17) is flush with the top surface of the movable frame (33), and then the first cylinders (4) stop working; S2: At this time, the second cylinder (8) is started, and the second cylinder (8) works to push the right slider (9) to slide inside the slot (10) of the slide groove (7). At this time, the ends of the first rotating plate (21) and the fourth rotating plate (24) are rotated on the surface of the annular groove of the right limiting frame (18), so that the first movable rod (13) and the second movable rod (14) are respectively moved closer in the process of sliding on the surfaces of the two limiting rods (15); S3: When the first movable rod (13) and the second movable rod (14) approach each other, the two clamping blocks (16) approach each other, and the two clamping blocks (16) push the two movable frames (33) to approach each other, pressurizing the second spring (31) on the surface of the clamping rod (30), so that the inner side surfaces of the two clamping blocks (16) are tightly fitted with the outer side surfaces of the top side of the mold (6), and the convex strip (17) is at the bottom of the top side of the mold (6); S4: When the inner side surface of the clamping block (16) is fitted with the outer side surface of the top side of the mold (6), the bottom surface of the clamping plate (12) is separated from the top surface of the mold (6). The two clamping blocks (16) are used to stabilize the two side surfaces of the mold (6), and the two clamping plates (12) are used to improve the stability of the two ends of the mold (6), thereby preventing the mold (6) from being offset during movement, preventing the mold (6) from falling from the bottom of the clamping device, and improving the stability of the mold (6) during transfer and clamping.

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