Pulling structure for cooling water jacket

Abstract

The invention belongs to the technical field of hot runners, and particularly relates to a pulling structure for a cooling water jacket. Conventional hoisting hole hoisting is replaced, and the cooling water jacket is rapidly and stably pulled out of an injection mold by improving the structure of the cooling water jacket and matching with the improved special pulling tool for the cooling water jacket. Comprising a pulling handle, the end of the pulling handle is connected with one end of a connecting body, the other end of the connecting body is connected with a clamping jaw mechanism, and the clamping jaw mechanism extends into an inner cavity of a cooling water jacket and then is clamped and fixed with the wall surface of the inner cavity; the pulling handle is clamped and fixed to the wall face of the inner cavity through the clamping jaw mechanism to pull the cooling water jacket out of the injection mold from the interior of the injection mold. According to the cooling water jackets of different specifications and the corresponding diameters of the inner ring groove and the inner clamping groove, stretching and contracting of the clamping jaws are adjusted, and the cooling water jackets are pulled out of the injection mold through vertically upward force when the clamping parts at the ends of the clamping jaws can abut against the top of the inner ring groove or the top of the inner clamping groove.

Description

Technical Field

[0001] The invention belongs to the technical field of hot runners, and in particular relates to a pulling structure for a cooling water jacket. Background Art

[0002] With the widespread use of plastic products in daily life, people's requirements for plastic products are getting higher and higher, so the requirements for hot runners in mold production are also increasing. In the use of hot runners, the requirements for injection temperature vary according to the injection molding materials, especially the location of the upper gate on the product. The use of cooling water jackets is more convenient for customers to add water channels, reduce high temperature burns during material molding, as well as wire drawing, casting, carbonization decomposition and other problems. Therefore, cooling water jackets can optimize the mold core water channel, improve product quality, and are widely used in hot runner systems. This structure can replace the customer's mold water channel cooling inserts, and can be used in open needle valve systems.

[0003] After the cooling water jacket structure is installed, it needs to be hoisted to remove the cooling water jacket during the disassembly process. The existing cooling water jacket structure is provided with two hoisting holes for hoisting and removal. However, there are two problems in the current disassembly implementation: one is that when the structural space is compact, the cooling water jacket structure cannot accommodate a suitable hoisting hole, and it cannot be hoisted if the hoisting hole is too small; the other is that there are usually two hoisting holes, which are symmetrically set at 180°. Because the hoisting equipment is large, the angle is easy to deviate during hoisting, and if there is a deviation, it is difficult to hoist.

[0004] Therefore, the above-mentioned problems need to be solved urgently. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a pulling structure for a cooling water jacket, which replaces the existing lifting holes for lifting. By improving the cooling water jacket structure and cooperating with the improved cooling water jacket special pulling tooling, the cooling water jacket can be quickly and smoothly pulled out from the injection mold.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: A pulling structure for a cooling water jacket comprises a pulling handle, wherein the end of the pulling handle is connected to one end of a connector, and the other end of the connector is connected to a claw mechanism, and the claw mechanism is inserted into an inner cavity of the cooling water jacket and is clamped and fixed with the inner cavity wall surface; the pulling handle is clamped and fixed with the inner cavity wall surface through the claw mechanism to pull the cooling water jacket out of the injection mold.

[0007] Furthermore, an inner groove is circumferentially formed on the inner cavity wall surface, and the inner groove is used to resist the claw mechanism.

[0008] Furthermore, the inner ring groove is evenly distributed with inner clamping grooves symmetrically arranged at two end points along the diameter of the inner ring groove.

[0009] Furthermore, the claw mechanism includes two claws I, one end of the claw I is rotatably connected to the other end of the connecting body, the other end of the claw I is provided with a clamping portion I, and the clamping portion I is clamped and fixed to the inner slot; an elastic member is provided between the two claws I, and the connecting body is provided with a sliding sleeve that can slide onto the two claws I; the elastic member is an element that undergoes elastic deformation under the action of external force and can restore its original shape.

[0010] Furthermore, the sliding sleeve slides on the connecting body toward the side of the clamping part I to squeeze the two claws I so that the elastic member contracts and deforms, and the two clamping parts I approach each other; the sliding sleeve slides on the claws I toward the side of the connecting body to release the two claws I so that the elastic member stretches and deforms, and the two clamping parts I move away from each other.

[0011] Furthermore, the inner wall surface of the sliding sleeve includes an internal thread I and a smooth surface, and the connecting body is provided with an external thread I that matches the internal thread I.

[0012] Furthermore, the claw mechanism includes a connecting plate, a fixing plate is provided on the top of the connecting plate, the fixing plate is fixedly connected to the other end of the connecting body, a servo motor is installed on the back of the connecting plate, and a first gear matching the output end of the servo motor is provided on the front of the connecting plate, the first gear is meshed with a second gear rotatably connected to the connecting plate, and the second gear is meshed with a third gear rotatably connected to the connecting plate; the second gear is hinged to one end of a claw II, and the third gear is hinged to one end of another claw II; the other ends of the two claws II are respectively provided with a clamping part II, and the clamping part II is clamped and fixed to the inner slot; the servo motor drives the first gear to rotate, the first gear drives the second gear to rotate, and the second gear drives the third gear to rotate, thereby driving the two claws II to open and close.

[0013] Furthermore, the connecting handle I of the second gear is hinged to the front upper end of the left claw II, and the back upper end of the left claw II is hinged with one end of a connecting rod, and the other end of the connecting rod is hinged to the back of the connecting plate, and the front and back middle parts of the left claw II are hinged with one end of a connecting rod, and the other end of the connecting rod is hinged to the back of the connecting plate; the connecting handle II of the third gear is hinged to the front upper end of the right claw II, and the back upper end of the right claw II is hinged with one end of a connecting rod, and the other end of the connecting rod is hinged to the back of the connecting plate, and the front and back middle parts of the right claw II are hinged with one end of a connecting rod, and the other end of the connecting rod is hinged to the back of the connecting plate; the connecting handle I, connecting handle II and six connecting rods move synchronously.

[0014] Furthermore, the first gear includes an axial connecting rod, a concave toothed disc, a convex gear, and a bolt; a connecting gear is provided at one end of the axial connecting rod, and teeth are evenly distributed on the outer circumference of the connecting gear, and an internal thread is provided in the connecting gear hole of the connecting gear, and the other end of the axial connecting rod is fixedly connected to the output end of the servo motor; a concave toothed disc hole is penetrated from one side to the other side of the center of the concave toothed disc, and the inner wall of the concave toothed disc hole is circumferentially provided with teeth matching with the connecting gear, and the connecting gear is installed in the concave toothed disc hole; a concave tooth groove is opened on one side of the concave toothed disc with the concave toothed disc hole as the center, and the inner wall surface of the concave tooth groove is circumferentially provided with teeth matching with the convex gear, and the convex gear is installed in the concave tooth groove; a convex gear hole is penetrated from one side to the other side of the center of the convex gear; the bolt enters the convex gear hole, passes through the concave toothed disc, and enters the connecting gear hole to be threaded and fixed.

[0015] Furthermore, the connecting plate is provided with a through hole I and a through hole II; the convex gear is installed on the concave gear plate through the through hole I, and the through hole II is used for connecting rod installation pin.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The pulling structure consists of two parts, one is the pulling tool, and the other is the cooling water jacket structure used in conjunction with the pulling tool. The two parts are used in conjunction to facilitate after-sales personnel to manually pull out the cooling water jacket from the injection mold, changing the existing method of pulling out the cooling water jacket through the lifting hole and the lifting equipment; according to the different specifications of the cooling water jacket and the corresponding inner ring groove and inner card groove diameter, the extension and contraction of the claws are adjusted, so that the clamping part at the end of the claw can resist the inner ring groove or the top of the inner card groove, and the cooling water jacket is pulled out from the injection mold through the vertical upward force. According to the size of the cooling water jacket, as well as the mold core and cavity height, different specifications of pulling tooling are designed, which are convenient for replacement, operation and carrying, improving the work efficiency of after-sales personnel, and eliminating the cumbersome steps of the existing lifting equipment in conjunction with the lifting hole.

[0017] 2. The inner wall of the cooling water jacket is designed with a circle of inner grooves in the circumferential direction. The inner grooves can make the clamping parts of the claws extend into the inner grooves and abut against the top surface of the claws. The structure of the inner grooves is flexible, and the clamping parts of the two claws can be located at any two points in the inner grooves to perform pulling. If it is necessary to always keep the angle perpendicular to the cooling water jacket and pull it upward during the pulling process, the two clamping parts need to be engaged at two points in the inner groove that are symmetrical in the diameter direction, so as to ensure the stable vertical angle of the cooling water jacket during the pulling process. By adding symmetrical inner grooves in the inner grooves, the inner grooves are arranged at two points along a diameter.

[0018] 3. The extension and contraction of the claw in the claw mechanism can be designed to be manually controlled or electrically controlled. Either method can achieve the abutment and fixation between the clamping part of the claw and the inner ring groove or the inner clamping groove in the cooling water jacket. When the two are selected for use, they share a set of pulling handles and connectors. It is only necessary to replace the different types of claw mechanisms at the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the first embodiment of the claw mechanism of the present invention; Figure 2 It is a structural schematic diagram of a first embodiment of the claw mechanism of the present invention; Figure 3 It is a schematic diagram of the cooling water jacket structure of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure in the middle AA direction; Figure 5 This is a schematic diagram of the structure of the extraction handle of the present invention; Figure 6 This is a schematic diagram of the connector structure of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the structure in the middle BB direction; Figure 8 This is a schematic diagram of the structure of the clamping claw I of the present invention; Fig. 9 It is a schematic diagram of the exploded structure of the threaded connection between the connector and the sleeve of the present invention; Fig.10 This is a schematic diagram of the second structure of the claw mechanism of the present invention; Fig.11 For the present invention Fig.10 Schematic diagram of the structure of claw II in extended state; Fig.12 For the present invention Fig.10 Schematic diagram of the structure of claw II in the contracted state; Fig.13 For the present invention Fig.12 Schematic diagram of the CC structure; Fig.14 For the present invention Fig.10 Schematic diagram of the exploded structure of the first gear; Fig.15 For the present invention Fig.10 Schematic diagram of the connecting plate structure in FIG. Fig.16 For the present invention Figure 1 The middle elastic member is a schematic diagram of the implementation structure of a spring sheet; Fig.17 For the present invention Figure 1 The middle elastic member is a schematic diagram of the implementation structure of the spring sheet. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed but is merely representative of selected embodiments of the present invention.

[0022] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field under the instructions before making creative work shall fall within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] Embodiment 1, as Figure 1 , 2 As shown: A cooling water jacket extraction structure comprises an extraction handle 1, wherein one end of the extraction handle 1 is connected to one end of a connector 2, and the other end of the connector 2 is connected to a clamping mechanism, which is inserted into an inner cavity of a cooling water jacket 3 and is clamped and fixed with an inner cavity wall 31 thereof; the extraction handle 1 is clamped and fixed with the inner cavity wall 31 to extract the cooling water jacket 3 from the injection mold to the outside of the injection mold.

[0027] like Figure 5 , 6As shown, a handle groove 11 is provided at the end of the extraction handle 1, and a handle groove internal thread 12 and a handle groove positioning surface 13 are provided on the inner wall surface of the handle groove 11. One end of the connector 2 installed on the handle groove 11 is provided with a connector external thread 22, a connector positioning surface 23, and a connector wrench position 24 in sequence. The extraction handle 1 is threadedly connected and fixed to the connector 2, and is tightened by the connector wrench position 24, so that the handle groove positioning surface 13 and the connector positioning surface 23 realize axial positioning.

[0028] The claw mechanism is adjusted according to the diameter of the inner cavity wall 31 of the cooling water jacket 3 . One end of the claw mechanism is mounted on the connector 2 , and the other end is adjusted according to the use environment to be clamped on the inner cavity wall 31 .

[0029] Embodiment 2, based on embodiment 1, the inner ring groove and the claw mechanism are used to form a clamping connection to achieve the removal of the cooling water jacket, without the need for lifting holes and lifting equipment. Figure 3 , 4 As shown: An inner groove 311 is circumferentially formed on the inner cavity wall surface 31 , and the inner groove 311 is used to resist the claw mechanism.

[0030] like Figure 3 As shown, the cross section of the inner ring groove 311 is an open rectangle with one long side and two short sides. When the claw mechanism is in the inner ring groove 311, it is lifted upward to abut against one of the short sides, thereby pulling the cooling water jacket out of the injection mold.

[0031] Example 3, based on Example 2, in order to ensure the balance when the cooling water jacket is pulled out vertically upward and prevent the unsmooth pulling out caused by the tilting angle, this example uses two symmetrical inner slots and claw mechanisms to ensure the smooth and balanced pulling out of the cooling water jacket, such as Figure 3 , 4 As shown: Inner grooves 312 are evenly distributed in the inner groove 311 and are symmetrical at two ends of the diameter of the inner groove 311 .

[0032] like Figure 4 As shown, the inner card grooves 312 are evenly distributed in the inner ring groove 311, and the distance between any inner card groove 312 and another symmetrical inner card groove 312 is equal to the diameter of the inner ring groove 311, so as to ensure that when the claw mechanism is engaged in any two symmetrical inner card grooves 312, the cooling water jacket 3 can be pulled out vertically upward to ensure balance and vertical pulling to avoid tilting.

[0033] Example 4, the first implementation method of the claw mechanism, by manually controlling the extension and contraction of the claw I to adapt to the inner ring groove or inner groove in the cooling water jacket to abut and fix, such as Figure 1 , 2 , as shown in 8: The claw mechanism includes two claws Ⅰ4, one end of the claw Ⅰ4 is rotatably connected to the other end of the connecting body 2, and the other end of the claw Ⅰ4 is provided with a clamping portion Ⅰ41, and the clamping portion Ⅰ41 is clamped and fixed with the inner slot 312; an elastic member is provided between the two claws Ⅰ4, and a sliding sleeve 5 that can slide onto the two claws Ⅰ4 is provided on the connecting body 2; the elastic member is an element that undergoes elastic deformation under the action of external force and can restore its original shape.

[0034] like Figure 7 As shown, the outer wall surface of the end of the connector 2 is symmetrically provided with a connector groove 25 along the diameter direction, and the connector groove 25 passes through the outer wall surface of the connector 2. A threaded fixing column 26 is installed in the connector groove 25. The outer periphery of the threaded fixing column 26 includes a threaded surface and a smooth surface. One end of the claw Ⅰ4 is provided with a mounting hole, which is sleeved on the threaded fixing column 26 and is locked by fixing the threaded surface on 26 with a nut and a thread. The claw Ⅰ4 can rotate on the smooth surface of the threaded fixing column 26.

[0035] like Figure 8 The end corner of the clamping part Ⅰ41 or the upward contact surface of the clamping part Ⅰ41 abuts against the top surface of the inner clamping groove 312 to pull up the cooling water jacket 3.

[0036] like Figure 1 When the elastic member is compressed by the sleeve, the sleeve 5 is hollow, and the hollow channel slides on the connector 2; the elastic member is in an extended state by default, that is, the opening of the two clamping claws Ⅰ4 with the clamping part Ⅰ41 is the largest; the sleeve 5 slides from the clamping claw Ⅰ4 at one end of the connector 2 to the clamping part Ⅰ41 at the other end, and the elastic member is gradually contracted due to the diameter restriction of the hollow channel of the sleeve 5, so that the two clamping parts Ⅰ41 gradually approach to adapt to the distance between the two symmetrical inner slots 312.

[0037] like Figure 2 When the elastic member is in the extended state, the engaging portion Ⅰ41 is located in the inner slot 312 , so the extension range of the elastic member is limited by the distance between the two symmetrical inner slots 312 and does not continue to extend.

[0038] Embodiment 5, based on embodiment 4, the elastic member can be implemented in two structures, such as Figure 1 , 2 , 16, 17 as shown: The sliding sleeve 5 slides on the connecting body 2 toward the side of the clamping part Ⅰ41 to squeeze the two claws Ⅰ4 so that the elastic member contracts and deforms, and the two clamping parts Ⅰ41 move closer to each other; the sliding sleeve 5 slides on the claws Ⅰ4 toward the side of the connecting body 2 to release the two claws Ⅰ4 so that the elastic member stretches and deforms, and the two clamping parts Ⅰ41 move away from each other.

[0039] One structure of the elastic member is implemented as a torsion spring 6, see Figure 1 , 2, the opening of the torsion spring 6 faces the side of the clamping part Ⅰ41, the upper connecting rod 61 and the lower connecting rod 62 of the torsion spring 6 are respectively fixed on the claw Ⅰ4, and the claw Ⅰ4 has a hole, and the upper connecting rod 61 and the lower connecting rod 62 are inserted and fixed; the sliding sleeve 5 slides on the claw Ⅰ4 toward the side of the clamping part Ⅰ41, and the upper connecting rod 61 and the lower connecting rod 62 of the torsion spring 6 are contracted and approached to each other; the sliding sleeve 5 slides on the claw Ⅰ4 toward the side of the connecting body 2, and the upper connecting rod 61 and the lower connecting rod 62 of the torsion spring 6 are stretched away from each other.

[0040] The second structure of the elastic member is implemented as a spring sheet 7, see Fig.16 , 17 The opening of the spring sheet 7 faces one side of the connecting body 2, and the upper connecting part 71 and the lower connecting part 72 of the spring sheet 7 are respectively fixed on the claw Ⅰ4. The claw Ⅰ4 has a threaded hole, and the upper connecting part 71 and the lower connecting part 72 have holes. Bolts are inserted into the holes on the upper connecting part 71 and the lower connecting part 72 and enter into the threaded holes on the claw Ⅰ4 to be threadedly connected and fixed; the sliding sleeve 5 slides on the claw Ⅰ4 toward the side of the clamping part Ⅰ41, and the spring sheet 7 is squeezed by the sliding sleeve 5 on the two claws Ⅰ4, so that the spring sheet 7 shrinks and deforms; the sliding sleeve 5 slides on the claw Ⅰ4 toward the side of the connecting body 2, and the spring sheet 7 is released by the sliding sleeve 5 on the two claws Ⅰ4, so that the spring sheet 7 stretches and deforms.

[0041] Embodiment 6, on the basis of embodiment 4, when the extraction handle vertically pulls out the cooling water jacket, the sleeve is fixed on the connector to prevent the sleeve from sliding down to the claw mechanism and interfering with it. Fig. 9 As shown: The inner wall surface of the sliding sleeve 5 includes an internal thread Ⅰ51 and a smooth surface 52 , and the connecting body 2 is provided with an external thread Ⅰ21 matching with the internal thread Ⅰ51 .

[0042] In the default state, the sleeve 5 is threadedly connected to the connector 2, and the sleeve 5 is immovable at this time; when the sliding sleeve 5 needs to be slid to squeeze and contract the claw Ⅰ4, the sleeve 5 is rotated to remove it; when the sleeve 5 is used up, it is slid onto the connector 2 to the external thread Ⅰ21 and threadedly connected and fixed with its internal thread Ⅰ51.

[0043] In order to achieve that the sleeve 5 can be fixed on the connecting body 2, only a small number of threads are needed; the smooth surface 52 is to provide smoothness when sliding to the claw Ⅰ4 and squeezing the claw Ⅰ4. If a large area of ​​the thread is in contact with the claw Ⅰ4 and squeezed, it is easy to cause damage to the thread and scratches on the claw Ⅰ4.

[0044] Example 7, based on Example 3, a second implementation of the claw mechanism, the extension and contraction of the claw II is controlled by a servo motor to adapt to the inner ring groove or inner groove in the cooling water jacket, such as Figure 6 , 7 , 10, 11, 12 as shown: The claw mechanism includes a connecting plate 8, a fixing plate 81 is provided on the top of the connecting plate 8, the fixing plate 81 is fixedly connected to the threaded fixing 26 of the connecting body 2, a servo motor 82 is installed on the back of the connecting plate 8, and a first gear 83 matching the output end of the servo motor 82 is provided on the front of the connecting plate 8, the first gear 83 is meshed with a second gear 84 rotatably connected to the connecting plate 8, and the second gear 84 is meshed with a third gear 85 rotatably connected to the connecting plate 8; the second gear 84 is hinged to one end of a claw II 86, and the third gear 85 is hinged to one end of another claw II 86; the other ends of the two claws II 86 are respectively provided with a clamping part II 87, and the clamping part II 87 is clamped and fixed with the inner slot 312; the servo motor 82 drives the first gear 83 to rotate, the first gear 83 drives the second gear 84 to rotate, and the second gear 84 drives the third gear 85 to rotate, thereby driving the two claws II 86 to open and close.

[0045] The servo motor 82 is installed on the back of the connecting plate 8. The installation and fixation of the servo motor 82 is a known mature technology and is not a structure to be improved in this application, so it will not be described in detail here.

[0046] The mounting holes on the fixing plate 81 are sleeved on the threaded fixing column 26. By adding a gasket, the total thickness of the fixing plate 81 and the gasket can be abutted and fixed with the nut, so that the fixing plate 81 is fixed on the threaded fixing column 26 instead of being rotatable.

[0047] Reference Fig.12 Taking the perspective as an example, the two claws II 86 are close to each other; at this time, the servo motor 82 is started to rotate counterclockwise to drive the first gear 83 to rotate counterclockwise, the first gear 83 rotates counterclockwise to drive the second gear 84 to rotate clockwise, and the second gear 84 rotates clockwise to drive the third gear 85 to rotate counterclockwise; the two claws II 86 are separated from each other, and the distance between the two clamping parts II 87 gradually increases to adapt to the two symmetrical inner slots 312, see Fig.11 .

[0048] Reference Fig.10 Taking the perspective as an example, the two claws II 86 are in a state of being away from each other; at this time, the servo motor 82 is started to rotate clockwise to drive the first gear 83 to rotate clockwise, the first gear 83 rotates clockwise to drive the second gear 84 to rotate counterclockwise, and the second gear 84 rotates counterclockwise to drive the third gear 85 to rotate clockwise; the two claws II 86 are close to each other, and the distance between the two clamping parts II 87 gradually decreases. Fig.12 .

[0049] Embodiment 8, based on embodiment 7, the two claws II are hinged by a connecting rod to achieve synchronous and stable movement, such as Fig.10 , 11 、13 as shown: The connecting handle Ⅰ841 of the second gear 84 is hinged to the front face of the upper end of the left-side clamping claw Ⅱ86, and the back face of the upper end of the left-side clamping claw Ⅱ86 is hinged with one end of a connecting rod 88, and the other end of the connecting rod 88 is hinged to the back face of the connecting plate 8; the connecting handle Ⅱ851 of the third gear 85 is hinged to the front face of the upper end of the right-side clamping claw Ⅱ86, and the back face of the upper end of the right-side clamping claw Ⅱ86 is hinged with one end of a connecting rod 88, and the other end of the connecting rod 88 is hinged to the back face of the connecting plate 8; the connecting handle Ⅰ841, the connecting handle Ⅱ851 and the six connecting rods 88 move synchronously.

[0050] Embodiment 9, based on embodiment 7, further defines the first gear structure, which is used to cooperate with the power of the servo motor to be transmitted to the second gear, such as Fig.14 As shown: The first gear 83 includes an axial connecting rod 831, a concave toothed disc 832, a convex gear 833, and a bolt 834; a connecting gear 8311 is provided at one end of the axial connecting rod 831, and teeth are evenly distributed on the outer circumference of the connecting gear 8311. An internal thread is provided in the connecting gear hole 8312 of the connecting gear 8311, and the other end of the axial connecting rod 831 is fixedly connected to the output end of the servo motor 82; a concave toothed disc hole 8321 runs through the center of the concave toothed disc 832 from one side to the other side, and a concave toothed disc hole 8321 is provided on the inner wall circumferentially with a The concave toothed disc 832 has teeth, and the connecting gear 8311 is installed in the concave toothed disc hole 8321; a concave tooth groove 8322 is opened on one side of the concave toothed disc 832 with the concave toothed disc hole 8321 as the center, and the inner wall surface of the concave tooth groove 8322 is circumferentially provided with teeth matching with the convex gear 833, and the convex gear 833 is installed in the concave tooth groove 8322; a convex gear hole 8331 passes through the center of the convex gear 833 from one side to the other side; the bolt 834 enters the convex gear hole 8331, passes through the concave toothed disc 832, and enters the connecting gear hole 8312 to be threaded and fixed.

[0051] Embodiment 10, on the basis of embodiment 9, as Fig.15 As shown: The connecting plate 8 is provided with a through hole I89 and a through hole II810; the convex gear 833 passes through the through hole I89 and is installed on the concave gear plate 832, and the through hole II810 is used for the connecting rod 88 to install the pin shaft.

[0052] The use principle can be divided into two ways, one is the cooperation between claw I and elastic parts, the other is the cooperation between claw II and gears and servo motors; the details are as follows: 1. Coordination between the clamping claw Ⅰ and the elastic member: Hold the pulling handle 1, remove the sliding sleeve 5 from the connecting body 2 by thread, slide the sliding sleeve 5 to the end of the clamping claw Ⅰ4, and continue to slide along the clamping claw Ⅰ4 toward the other end. When the torsion spring 6 or the spring sheet 7 between the two clamping claws Ⅰ4 is squeezed and deformed by the inner diameter of the sliding sleeve 5, the two clamping parts Ⅰ41 can enter the cooling water jacket 3. The sliding sleeve 5 moves toward the connecting body 2. While moving, the torsion spring 6 or the spring sheet 7 will gradually rebound and stretch to drive the clamping claw Ⅰ4 to stretch. The two clamping parts Ⅰ41 are aligned with the inner groove 312 until the sliding sleeve 5 slides onto the connecting body 2. At this time, the clamping part Ⅰ41 is clamped and fixed in the inner groove 312. Hold the pulling handle 1 and pull the cooling water jacket 3 upward from the injection mold.

[0053] 2. Coordination of claws II, gears and servo motor: the pulling handle 1 and the connector 2 are consistent with those in the above “a”; the two claws II 86 are in the default state of contraction, that is, the claws II 86 are close to each other, and the two claws II 86 extend into the cooling water jacket 3; the servo motor 82 is started, and the output end of the servo motor 82 rotates counterclockwise to drive the first gear 83 to rotate counterclockwise, the first gear 83 rotates counterclockwise to drive the second gear 84 to rotate clockwise, and the second gear 84 rotates clockwise to drive the third gear 85 to rotate counterclockwise, and the two claws II 86 gradually move away from each other, that is, the distance between the two clamping parts II 87 gradually increases to adapt to the two symmetrical inner slots 312. When the two clamping parts II 87 are clamped in the inner slots 312, the servo motor 82 is stopped, and the claws II 86 also stop extending at this time; the pulling handle 1 is held and the cooling water jacket 3 is pulled out upward from the injection mold.

[0054] The present invention is described exemplarily above in conjunction with the accompanying drawings, and it is obvious that the specific implementation of the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make various modifications or variations to the present invention without departing from the technical concept of the present invention, and these modifications or variations certainly fall within the protection scope of the present invention.

Claims

1. A cooling water jacket lifting structure, characterized in that: It comprises a pulling handle (1), the end of the pulling handle (1) is connected to one end of a connector (2), the other end of the connector (2) is connected to a clamping claw mechanism, and the clamping claw mechanism is inserted into the inner cavity of the cooling water jacket (3) and is clamped and fixed to the inner cavity wall surface (31) thereof; The extraction handle (1) is fixedly engaged with the inner cavity wall surface (31) through a claw mechanism to extract the cooling water jacket (3) from the injection mold to the outside of the injection mold.

2. The cooling water jacket lifting structure according to claim 1, characterized in that: An inner ring groove (311) is circumferentially formed on the inner cavity wall surface (31), and the inner ring groove (311) is used to resist the claw mechanism.

3. The cooling water jacket lifting structure according to claim 2, characterized in that: The inner ring groove (311) is evenly distributed with inner clamping grooves (312) symmetrically arranged at two ends of the diameter of the inner ring groove (311).

4. The cooling water jacket lifting structure according to claim 3, characterized in that: The clamping claw mechanism comprises two clamping claws I (4), one end of the clamping claw I (4) is rotatably connected to the other end of the connecting body (2), the other end of the clamping claw I (4) is provided with a clamping portion I (41), and the clamping portion I (41) is clamped and fixed to the inner clamping groove (312); An elastic member is provided between the two clamping claws I (4), and a sliding sleeve (5) is sleeved on the connecting body (2) and can slide onto the two clamping claws I (4); The elastic member is an element that undergoes elastic deformation under the action of external force and can restore its original shape.

5. The cooling water jacket lifting structure according to claim 4, characterized in that: The sliding sleeve (5) slides on the connecting body (2) toward one side of the clamping portion I (41) to squeeze the two clamping claws I (4) so ​​that the elastic member contracts and deforms, and the two clamping portions I (41) approach each other; The sliding sleeve (5) slides on the clamping claws I (4) toward one side of the connecting body (2) to release the two clamping claws I (4) so ​​that the elastic member stretches and deforms, and the two clamping parts I (41) move away from each other.

6. The cooling water jacket lifting structure according to claim 4, characterized in that: The inner wall surface of the sliding sleeve (5) comprises an internal thread I (51) and a smooth surface (52), and the connecting body (2) is provided with an external thread I (21) matching the internal thread I (51).

7. The cooling water jacket lifting structure according to claim 3, characterized in that: The claw mechanism comprises a connecting plate (8), a fixing plate (81) is provided on the top of the connecting plate (8), the fixing plate (81) is fixedly connected to the other end of the connecting body (2), a servo motor (82) is installed on the back of the connecting plate (8), and a first gear (83) is provided on the front of the connecting plate (8) to cooperate with the output end of the servo motor (82), the first gear (83) is meshed with a second gear (84) rotatably connected to the connecting plate (8), and the second gear (84) is meshed with a third gear (85) rotatably connected to the connecting plate (8); The second gear (84) is hinged to one end of a claw II (86), and the third gear (85) is hinged to one end of another claw II (86); The other ends of the two clamping claws II (86) are respectively provided with clamping parts II (87), and the clamping parts II (87) are clamped and fixed to the inner clamping groove (312); The servo motor (82) drives the first gear (83) to rotate, the first gear (83) drives the second gear (84) to rotate, the second gear (84) drives the third gear (85) to rotate, thereby driving the two claws II (86) to open and close.

8. The cooling water jacket lifting structure according to claim 7, characterized in that: The connecting handle I (841) of the second gear (84) is hinged to the front face of the upper end of the left clamping claw II (86); the upper end of the left clamping claw II (86) is hinged to one end of a connecting rod (88) on the back face; the other end of the connecting rod (88) is hinged to the back face of the connecting plate (8); the middle part of the left clamping claw II (86) is hinged to one end of a connecting rod (88) on the front face and the back face; the other end of the connecting rod (88) is hinged to the back face of the connecting plate (8); The connecting handle II (851) of the third gear (85) is hinged to the front of the upper end of the right clamping claw II (86); the upper end of the right clamping claw II (86) is hinged to one end of a connecting rod (88) on the back; the other end of the connecting rod (88) is hinged to the back of the connecting plate (8); the middle part of the right clamping claw II (86) is hinged to one end of a connecting rod (88) on the front and back; the other end of the connecting rod (88) is hinged to the back of the connecting plate (8); The connecting handle I (841), the connecting handle II (851) and the six connecting rods (88) move synchronously.

9. The cooling water jacket lifting structure according to claim 7, characterized in that: The first gear (83) comprises a shaft connecting rod (831), a concave toothed disc (832), a convex gear (833), and a bolt (834); A connecting gear (8311) is provided at one end of the shaft connecting rod (831), teeth are evenly distributed on the outer circumference of the connecting gear (8311), an internal thread is provided in the connecting gear hole (8312) of the connecting gear (8311), and the other end of the shaft connecting rod (831) is fixedly connected to the output end of the servo motor (82); A concave toothed disc hole (8321) penetrates the center of the concave toothed disc (832) from one side to the other side, and teeth cooperating with the connecting gear (8311) are circumferentially arranged on the inner wall of the concave toothed disc hole (8321), and the connecting gear (8311) is installed in the concave toothed disc hole (8321); A concave tooth groove (8322) is provided on one side of the concave tooth disc (832) with the concave tooth disc hole (8321) as the center, and teeth cooperating with the convex gear (833) are provided on the inner wall surface of the concave tooth groove (8322) in the circumferential direction, and the convex gear (833) is installed in the concave tooth groove (8322); A convex gear hole (8331) runs through the center of the convex gear (833) from one side to the other side; The bolt (834) enters the convex gear hole (8331), passes through the concave gear plate (832), enters the connecting gear hole (8312), and is threadedly connected and fixed.

10. The cooling water jacket lifting structure according to claim 9, characterized in that: The connecting plate (8) is provided with a through hole I (89) and a through hole II (810); The convex gear (833) passes through the through hole I (89) and is installed on the concave gear plate (832), and the through hole II (810) is used for installing the pin shaft of the connecting rod (88).

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