Automatic material pulling device of injection molding machine

Abstract

The invention relates to the technical field of machining equipment, in particular to an automatic material pulling device of an injection molding machine. The adjusting assembly is arranged on the inner wall of the main body assembly and comprises a bottom plate, a material pulling part arranged at the end part of the bottom plate and an adjusting part arranged on the outer wall of the bottom plate; the pulling structure is arranged to be matched with the material pulling component, after material belt injection molding is completed, a material belt can be effectively separated from a mold and pulled, meanwhile, the pulling structure is matched with the adjusting component, the position of the material belt can be finely adjusted, the material belt is aligned to the mold, the quality of an injection molded product is improved, and the production efficiency is improved. According to the automatic material pulling and calibrating device, automatic material pulling and calibrating of the material belt after injection molding are achieved, manual operation can be effectively reduced, the production efficiency is improved, meanwhile, the positioning accuracy of the material belt is guaranteed, and production errors caused by human factors are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing equipment, in particular to an automatic material pulling device of an injection molding machine. Background Art

[0002] Traditional injection molding machines require manual labor to remove the product from the mold after the mold is opened. This is not only labor-intensive, but also poses safety hazards such as burns. In addition, during the material pulling process, traditional injection molding machines are prone to product position deviation due to unreasonable design of the positioning mechanism, affecting the smooth progress of subsequent processes.

[0003] The Chinese patent application with authorization announcement number CN209240358U discloses an automatic material pulling mechanism for injection molding. After the material strip completes the injection molding process, the mechanism uses an ejection assembly to eject the material strip limited by a pin, and then the material pulling device pulls and moves the completed material strip to facilitate the next process, which can save a lot of manual labor and improve work efficiency.

[0004] However, this technical solution still has some problems: although it facilitates the pulling and displacement of the material strip, the material strip is not positioned during the injection molding process. During the injection molding, it is easy for the inaccurate position of the material strip to cause the injection molding to fail, affecting the progress of the next step. Summary of the invention

[0005] In view of the above problems in the prior art, the present invention is proposed.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic material pulling device for an injection molding machine, comprising a main body component; An adjusting component is arranged on the inner wall of the main component, and the adjusting component includes a base plate, a pulling component arranged on the end of the base plate, and an adjusting component arranged on the outer wall of the base plate. A pulling structure is installed on the inner wall of the adjusting component. The pulling structure is used to drive the material strip to separate it from the inner wall of the mold arranged on the surface of the base plate and align the material strip with the mold at the same time. The pulling component is used to drive the material strip to move on the mold surface, and the adjusting component is used to push the material strip to align it with the mold.

[0007] As a preferred solution of the automatic material pulling device of the injection molding machine described in the present invention, wherein: the pulling structure includes a pushing cylinder arranged on the outer wall of the base plate, the surface of the pushing cylinder is connected with a slide, the slide is slidably matched with a guide rail installed on the surface of the base plate, a moving block is arranged at the end of the slide and a roller is arranged on the outer wall of the moving block, and the roller is located on the outer wall of the material belt and is used to drive the material belt to leave the surface of the base plate.

[0008] As a preferred solution of the automatic material pulling device of the injection molding machine described in the present invention, wherein: the outer wall of the movable block is also provided with a fixed block, the inner wall of the fixed block is movably provided with a rotating rod, the end of the rotating rod is provided with a sliding column and the other end away from the sliding column is provided with a roller, the outer wall of the sliding column is sleeved with a pushing block and the inner wall of the pushing block is provided with a threaded groove, the end of the sliding column extends to the inner wall of the threaded groove and slidably cooperates with it, a cylinder is also provided inside the fixed block and an inclined block is provided at the end of the cylinder, the pushing block moves at the end of the rotating rod and squeezes the inclined block, drives the cylinder downward and squeezes the first elastic member provided at the end of the inclined block to deform it.

[0009] As a preferred solution of the automatic material pulling device of the injection molding machine described in the present invention, wherein: a mounting plate is fixed to the outer wall of the base plate, a guide plate is provided on the end face of the mounting plate and a guide groove is opened on the end face of the guide plate, the roller slides on the inner wall of the guide groove, a rack is provided on the inner wall of the guide groove and the rack is meshed with the gear on the outer wall of the roller.

[0010] As a preferred solution of the automatic material pulling device of the injection molding machine described in the present invention, wherein: a branch plate is hinged on the inner wall of the guide groove, one end of the branch plate is located in a notch opened on the end face of the guide groove, and the roller passes through the branch plate and enters the upper end of the guide groove.

[0011] As a preferred solution of the automatic material pulling device of the injection molding machine described in the present invention, wherein: a limit rod is provided on the inner wall of the adjusting component, a movable plate is movably provided on the outer wall of the limit rod, a second elastic member is sleeved on the end of the limit rod and the second elastic member is located at the end of the movable plate, an adjusting rod is provided in an array on the end face of the movable plate and the adjusting rod is opposite to a positioning column fixed on the surface of the bottom plate, and the positioning column is fixed on the outer wall of the mold opened on the surface of the bottom plate.

[0012] As a preferred solution of the automatic material pulling device of the injection molding machine described in the present invention, the end face of the mounting plate is provided with an opening, the end of the movable plate extends to the inner wall of the opening and slidably cooperates therewith, and a push column is provided at the end of the movable plate, and the push column extends to the inside of the opening.

[0013] As a preferred solution of the automatic material pulling device of the injection molding machine described in the present invention, a driving motor is fixed to the outer wall of the mounting plate, an oblique ring is arranged at the axis of the driving motor, the end of the pushing column is in contact with the end face of the oblique ring, and the driving column is driven to move when the oblique ring rotates.

[0014] As a preferred solution of the automatic material pulling device of the injection molding machine of the present invention, the material pulling component includes a moving table, a strip plate is fixed to the end surface of the moving table, and a cylinder is arranged on the end surface of the strip plate.

[0015] As a preferred solution of the automatic material pulling device of the injection molding machine described in the present invention, wherein: a servo motor is arranged inside the movable platform, an internal gear is arranged at the axis of the servo motor, a pawl is arranged on the outer wall of the internal gear, an external gear is sleeved on the outer wall of the internal gear and a ratchet is arranged on the inner wall of the external gear, the pawl is engaged with the ratchet and restricts the external gear, and a pulling column is arranged on the outer wall of the external gear for pulling the material belt.

[0016] The beneficial effects of the present invention: The present invention sets a pulling structure to cooperate with the pulling component, which can effectively separate and pull the material strip from the mold after the injection molding of the material strip is completed. At the same time, in cooperation with the adjusting component, the position of the material strip can be finely adjusted to align the material strip with the mold, thereby improving the quality of the injection molded product and realizing automatic pulling and calibration of the material strip after the injection molding is completed, which can effectively reduce manual operations and improve production efficiency, while ensuring the positioning accuracy of the material strip and avoiding production errors caused by human factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of an automatic material pulling device of an injection molding machine of the present invention; Figure 2 It is a schematic diagram of the overall structure of the regulating component in the present invention; Figure 3 It is a schematic diagram of the structure of the adjusting component and the bottom plate in the present invention; Figure 4 It is a schematic diagram of the internal structure of the adjusting component in the present invention; Figure 5 It is a schematic diagram of the connection relationship between the push cylinder and the slide table in the present invention; Figure 6 It is a side view of the adjustment component in the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the structure enlargement at point A; Figure 8 It is a structural schematic diagram of the guide plate in the present invention; Fig. 9 For the present invention Figure 8 A schematic diagram of the structure at B in FIG. Fig.10 is a side sectional view of the mobile station of the present invention; Fig.11It is a schematic diagram of the positional relationship between the inner gear and the outer gear in the present invention.

[0019] Reference numerals: 100, main body assembly; 200, adjustment component; 201, bottom plate; 2011, mold; 2012, positioning column; 202, material pulling component; 2021, moving table; 2022, strip plate; 2023, cylinder; 2024, servo motor; 2025, internal gear; 2026, ratchet; 2027, external gear; 2028, ratchet; 2029, pulling column; 203, adjustment component; 2031, limit rod; 2032, movable plate; 2033, second elastic member; 2034, adjustment rod; 2035, push column; 204, mounting plate; 2 041, opening; 2042, guide plate; 2043, drive motor; 2044, oblique ring; 205, guide rail; 2051, push cylinder; 2052, slide; 2053, moving block; 2054, roller; 2055, fixed block; 206, rotating rod; 2061, sliding column; 2062, roller; 2063, push block; 2064, threaded groove; 2065, cylinder; 2066, oblique block; 2067, first elastic member; 207, guide groove; 2071, rack; 2072, shunt plate; 2073, notch. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0023] Example 1

[0024] This is the first embodiment of the present invention, which provides an automatic material pulling device for an injection molding machine.

[0025] Specifically, refer to Figure 1 and Figure 2 , an automatic material pulling device for an injection molding machine, comprising: a main body component 100; The adjusting component 200 is arranged on the inner wall of the main component 100, and the adjusting component 200 includes a base plate 201, a pulling component 202 arranged at the end of the base plate 201, and an adjusting component 203 arranged on the outer wall of the base plate 201. A pulling structure is installed on the inner wall of the adjusting component 203. The pulling structure is used to drive the material belt to make it detach from the inner wall of the mold 2011 arranged on the surface of the base plate 201 and align the material belt with the mold 2011 at the same time. The pulling component 202 is used to drive the material belt to move on the surface of the mold 2011, and the adjusting component 203 is used to push the material belt to further align it with the mold 2011.

[0026] The material pulling component 202 is symmetrically arranged at the upper and lower ends of the bottom plate 201. The material pulling component 202 can be moved at the two ends of the bottom plate 201 by being pushed by the cylinder. The adjusting component 203 is fixed at the two sides of the bottom plate 201. The material strip is pulled on the surface of the bottom plate 201 by the material pulling component 202. The position of the material strip and the mold 2011 is adjusted by the pulling structure. After the position of the material strip and the mold 2011 is further calibrated by the adjusting component 203, the material strip is brought close to the mold 2011. Then, the bottom plate 201 and the main body are assembled. The injection molding parts outside the part 100 are injection molded to complete the injection molding of the material strip, and then the base plate 201 is separated from the injection molding parts. The pulling parts 202 at the upper and lower ends drive the material strip after injection molding outward from the mold 2011 at the ends of the base plate 201 to make it separate from the inside of the mold 2011. Then the pulling structure further adjusts the material strip outward to completely separate it from the mold 2011. Then the pulling part 202 brings the injected material strip away from the base plate 201, and the material strip to be processed is pulled to the surface of the base plate 201 for the next round of injection molding.

[0027] Example 2

[0028] This is the second embodiment of the present invention, which is implemented based on the previous embodiment.

[0029] Specifically, refer to Figure 5 The pulling structure includes a pushing cylinder 2051 arranged on the outer wall of the base plate 201, and a slide 2052 is connected to the surface of the pushing cylinder 2051. The slide 2052 slides with the guide rail 205 installed on the surface of the base plate 201. A moving block 2053 is arranged at the end of the slide 2052 and a roller 2054 is arranged on the outer wall of the moving block 2053. The roller 2054 is located on the outer wall of the material belt and is used to drive the material belt to leave the surface of the base plate 201.

[0030] The guide rails 205 are symmetrically fixed on the outer walls of the bottom plate 201 on both sides, and the push cylinder 2051 pushes the slide 2052 to slide on the surface of the guide rails 205. The surface of the slide 2052 is installed with a moving block 2053. One side of the moving block 2053 is divided into two parts, such as Figure 5As shown, a portion of the outer wall is installed with a roller 2054, and the roller 2054 is attached to the bottom of the edge of the material belt. As the slide 2052 moves, the roller 2054 moves under the material belt, lifts the material belt upward, and picks up the injection molded workpiece from the mold 2011, which is convenient for the next step of operation.

[0031] Preferably, refer to Figure 6 and Figure 7 A fixed block 2055 is also provided on the outer wall of the movable block 2053, and a rotating rod 206 is movably provided on the inner wall of the fixed block 2055. A sliding column 2061 is provided on the end of the rotating rod 206, and a roller 2062 is provided on the other end away from the sliding column 2061. A pushing block 2063 is sleeved on the outer wall of the sliding column 2061, and a thread groove 2064 is provided on the inner wall of the pushing block 2063. The end of the sliding column 2061 extends to the inner wall of the thread groove 2064 and slides with it. A cylinder 2065 is also provided inside the fixed block 2055, and an inclined block 2066 is provided on the end of the cylinder 2065. The pushing block 2063 moves at the end of the rotating rod 206 and squeezes the inclined block 2066, driving the cylinder 2065 downward and squeezing the first elastic member 2067 to deform it.

[0032] Among them, the fixed block 2055 is on one side of the moving block 2053 and is an integral part with the moving block 2053. The rotating rod 206 is installed inside the fixed block 2055. A sliding column 2061 is provided on the outer wall of the rotating rod 206 inside the fixed block 2055, and the top of the other part is located on the outside of the moving block 2053, and a roller 2062 is fixed on the surface, and a gear is also fixed on the outer surface of the roller 2062.

[0033] A pushing block 2063 is installed inside the fixed block 2055. The pushing block 2063 is square in shape as a whole, moves inside the fixed block 2055 and cannot rotate. A threaded groove 2064 is provided on the inner wall of the pushing block 2063. The roller 2062 rotates under the influence of external force, driving the rotating rod 206 to rotate inside the fixed block 2055. When the sliding column 2061 at the other end rotates with the rotating rod 206, the pushing block 2063 moves inside the fixed block 2055, squeezing the inclined block 2066 at the end of the fixed block 2055, pressing the inclined block 2066 downward, and at this time, the first elastic member 2067 below the inclined block 2066 is deformed, and at the same time, the cylinder 2065 moves downward and exposes the end to the bottom of the fixed block 2055.

[0034] Reference Figure 2~Figure 4 , Figure 7~Figure 9 A mounting plate 204 is fixed to the outer wall of the bottom plate 201, a guide plate 2042 is provided on the end face of the mounting plate 204, and a guide groove 207 is opened on the end face of the guide plate 2042, the roller 2062 slides on the inner wall of the guide groove 207, a rack 2071 is provided on the inner wall of the guide groove 207, and the rack 2071 is meshed with the gear on the outer wall of the roller 2062.

[0035] The mounting plate 204 is fixed on both sides of the bottom plate 201, and a guide plate 2042 is fixed on the surface. The guide plate 2042 is on the side of the guide rail 205, and a guide groove 207 is opened on the surface of the guide plate 2042. Figure 8 As shown, the guide groove 207 is divided into two layers, an upper layer and a lower layer, and they are connected. The mounting plate 204 is close to the guide rail 205, and the roller 2062 is fixed on the rotating rod 206 and is located outside the moving block 2053. Inside the guide groove 207, when the pushing cylinder 2051 pushes the slide 2052 to move, the roller 2062 slides inside the guide groove 207. At the same time, a rack 2071 is provided at the starting end of the guide groove 207. The rack 2071 is meshed with the pinion on the surface of the roller 2062. When the roller 2062 passes the starting end of the guide groove 207, it rotates, driving the rotating rod 206 to rotate.

[0036] Reference Figure 8 , Fig. 9 A branch plate 2072 is hinged on the inner wall of the guide groove 207 , and one end of the branch plate 2072 is located in a notch 2073 opened on the end surface of the guide groove 207 . The roller 2062 passes through the branch plate 2072 and enters the upper end of the guide groove 207 .

[0037] Among them, the branch plate 2072 is hinged inside the guide groove 207, where the layering begins at the starting end. One end of the branch plate 2072 is located inside the notch 2073 below the guide groove 207. When the cylinder 2051 pushes the slide 2052 to slide on the guide rail 205, the roller 2062 slides in the guide groove 207. When the roller 2062 passes through the branch plate 2072, it will pass through the branch plate 2072 and enter the guide groove 207 of the upper layer. At this time, the moving block 2053 is above the slide 2052 and rises a distance. As the moving block 2053 moves upward, the roller 2054 rises together. When the roller 2054 rises upward, it will lift the current material belt upward.

[0038] When the roller 2062 reaches the other end of the guide groove 207, it will fall into the guide groove 207 of the lower layer. At this time, the cylinder 2051 pushes the slide 2052 to slide from one end of the guide rail 205 to the other end. At this time, the material strip that was originally injection molded inside the mold 2011 is picked up by the roller 2054, and the material strip on the surface of the bottom plate 201 is completely separated from the mold 2011, which is convenient for the next step of operation.

[0039] At the same time, the roller 2062 falls into the guide groove 207 of the lower layer, and moves back as the push cylinder 2051 retracts. When passing through the branch plate 2072, the branch plate 2072 is flipped with its hinge point as the fulcrum and continues to move, enters the starting end of the guide groove 207, and engages with the rack 2071.

[0040] The roller 2062 meshes with the rack 2071 to drive the rotating rod 206 to rotate inside the fixed block 2055, and the sliding column 2061 at the top of the rotating rod 206 rotates inside the thread groove 2064. Through the cooperation between the thread groove 2064 and the sliding column 2061, the pushing block 2063 moves forward inside the fixed block 2055.

[0041] Reference Figure 3 and Figure 4 A limiting rod 2031 is provided on the inner wall of the adjusting component 203, and a movable plate 2032 is movably provided on the outer wall of the limiting rod 2031. A second elastic member 2033 is sleeved on the end of the limiting rod 2031 and the second elastic member 2033 is located at the end of the movable plate 2032. An adjusting rod 2034 is provided in an array on the end face of the movable plate 2032 and the adjusting rod 2034 is opposite to the positioning column 2012 fixed on the surface of the bottom plate 201, and the positioning column 2012 is fixed on the outer wall of the mold 2011 opened on the surface of the bottom plate 201.

[0042] The adjusting component 203 has an accommodating cavity inside, and two limiting rods 2031 are fixed therein. A second elastic member 2033 is sleeved on the surface of each limiting rod 2031. The second elastic member 2033 is located between the inner wall of the accommodating cavity and the movable plate 2032. The movable plate 2032 passes through the limiting rod 2031 and moves on the surface of the limiting rod 2031. Figure 3 and Figure 4 As shown, the adjustment rod 2034 on the surface of the movable plate 2032 is opposite to the positioning column 2012 on the surface of the bottom plate 201 . When the movable plate 2032 approaches the bottom plate 201 , the adjustment rod 2034 fits with the positioning column 2012 .

[0043] An opening 2041 is formed on the end surface of the mounting plate 204 . The end of the movable plate 2032 extends to the inner wall of the opening 2041 and slidably cooperates therewith. A pushing column 2035 is disposed on the end of the movable plate 2032 and extends into the opening 2041 .

[0044] Among them, an opening 2041 is opened on the surface of the mounting plate 204, the lower part of the movable plate 2032 moves in the opening 2041, and the lower part of the limiting rod 2031 also passes through the surface of the mounting plate 204. The second elastic member 2033 on the surface of the limiting rod 2031 is affected by the elastic force, pushing the movable plate 2032 toward the mounting plate 204, and pushing the lower end of the movable plate 2032 toward the opening 2041.

[0045] Preferably, a driving motor 2043 is fixed to the outer wall of the mounting plate 204, an oblique ring 2044 is provided at the axis of the driving motor 2043, the end of the pushing column 2035 is in contact with the end surface of the oblique ring 2044, and the oblique ring 2044 drives the pushing column 2035 to move when it rotates.

[0046] Among them, the pushing column 2035 fixed on the lower surface of the movable plate 2032 is in contact with the oblique ring 2044 on the surface of the mounting plate 204, and the oblique ring 2044 is driven by the driving motor 2043 to rotate. Since the surface of the oblique ring 2044 is inclined, when the oblique ring 2044 rotates, when the high part of the oblique ring 2044 contacts the surface of the pushing column 2035, the pushing column 2035 drives the movable plate 2032 upward in the accommodating cavity of the adjusting component 203, squeezing the second elastic member 2033. When the low part of the oblique ring 2044 contacts the surface of the pushing column 2035, the second elastic member 2033 loses its extrusion and pushes the movable plate 2032 toward the mounting plate 204. At this time, the adjusting rod 2034 on the surface of the movable plate 2032 is in contact with the positioning column 2012 on the surface of the bottom plate 201.

[0047] In summary, during use, after a mold closing and injection molding operation has just been completed, the material strip after injection molding is still inside the mold 2011. First, move the pulling parts 202 at the upper and lower ends of the bottom plate 201 outward to initially separate the injected material strip from the mold 2011. Then, push the cylinder 2051 to push the slide 2052 along the guide rail 205. The rotating rod 206 in the moving block 2053 moves with the slide 2052. At the same time, the roller 2062 at the end of the rotating rod 206 slides along the guide groove 207 on the inner wall of the guide plate 2042.

[0048] The roller 2062 slides inside the guide groove 207, and when passing through the branch plate 2072, it enters the upper layer of the guide groove 207 through the branch plate 2072. At this time, the moving block 2053 rises to a certain height on the surface of the slide 2052. At this time, the roller 2054 on the side of the moving block 2053 also lifts the material strip outward, and removes the round hole on the edge of the material strip from the positioning column 2012. At this time, the material strip is completely separated from the mold 2011. As the slide 2052 moves, the material strip in the mold 2011 is completely detached, and then the pulling component 202 pulls away the material strip after injection molding. At this time, the uninjected material strip replaces the position of the original material strip.

[0049] Then the roller 2062 falls from the upper layer of the guide groove 207 to the next layer. At this time, the fixed block 2055 at the front end of the moving block 2053 is attached to the surface of the material belt and presses it down a little, so that the material belt is close to the positioning column 2012. Then the cylinder 2051 is pushed to pull the slide 2052 back. The fixed block 2055 moves back with the slide 2052 and presses the material belt downward. When the roller 2062 is engaged with the rack 2071, the rotating rod 206 The push block 2063 at the other end of the rotating rod 206 moves and squeezes the inclined block 2066, so that the cylinder 2065 is exposed downward. At this time, the cylinder 2065 is attached to the surface of the material belt, and as the slide 2052 continues to move backward, it moves along the surface of the material belt until it engages with the round hole on the surface of the feed belt. When the roller 2062 is at the end position of the guide groove 207, the cylinder 2065 is just located after the material belt is engaged with the mold 2011. The position of the circular hole on the surface of the material belt that is not opposite to the positioning column 2012, when the cylinder 2065 moves along the surface of the material belt, if the position of the material belt deviates from the mold 2011 at this time, and the circular hole does not match the positioning column 2012, the cylinder 2065 will be engaged in the circular hole and will pull the material belt backward a short distance until it stops in the circular hole on the surface of the material belt where the cylinder 2065 is engaged. At this time, the position of the material belt is just opposite to the positioning column 2012, and then the driving motor 2043 on the side of the mounting plate 204 rotates, and the movable plate 2032 is moved toward the direction of the bottom plate 201 through the rotation of the oblique ring 2044. At this time, the adjusting rod 2034 is in contact with the positioning column 2012, and the diameter of the adjusting rod 2034 is smaller than the diameter of the positioning column 2012, so the adjusting rod 2034 is easier to pass through the circular hole. During the bonding process, the adjusting rod 2034 first passes through the circular hole on the side of the material belt, and then fits with the positioning column 2012.

[0050] After the cylinder 2065 pulls the material strip for preliminary position adjustment, the adjustment rod 2034 on the surface of the movable plate 2032 passes through the circular hole of the material strip and fits with the positioning column 2012. When the mold is closed for injection molding, the inner wall of the circular hole of the material strip slides along the outer wall of the adjustment rod 2034 to the outer wall of the positioning column 2012, thereby realizing the position calibration of the material strip and the mold 2011.

[0051] Example 3

[0052] This is the third embodiment of the present invention, which is implemented based on the previous embodiment.

[0053] Specifically, refer to Fig.10 The material pulling component 202 includes a moving platform 2021, a strip board 2022 is fixed to the end surface of the moving platform 2021, and a cylinder 2023 is arranged on the end surface of the strip board 2022.

[0054] Among them, a strip board 2022 is installed on the surface of the moving platform 2021 and a cylinder 2023 is set on the surface of the strip board 2022. The cylinder 2023 is used to transport the material belt. When the pulling component 202 drives the material belt to move, the material belt is transported close to the cylinder 2023.

[0055] Better, refer to Fig.11 A servo motor 2024 is arranged inside the movable platform 2021, an inner gear 2025 is arranged at the axis of the servo motor 2024, a ratchet 2026 is arranged on the outer wall of the inner gear 2025, an outer gear 2027 is sleeved on the outer wall of the inner gear 2025, and a ratchet 2028 is arranged on the inner wall of the outer gear 2027, the ratchet 2026 is engaged with the ratchet 2028 and restricts the outer gear 2027, and a pulling column 2029 is arranged on the outer wall of the outer gear 2027 for pulling the material belt.

[0056] The servo motor 2024 is installed inside the moving platform 2021, and the outer gear 2027 is sleeved on the outside of the inner gear 2025 and connected to the pawl 2026 through the ratchet 2028. Fig.11 As shown, when it is necessary to pull the material strip, the pawl 2026 on the surface of the inner gear 2025 engages into the inside of the ratchet 2028, and the inner gear 2025 drives the outer gear 2027 to rotate. The pulling column 2029 on the surface of the outer gear 2027 corresponds to the circular hole on the surface of the material strip, pulling the material strip to move after the injection molding is completed, and pulling the unprocessed material strip to the surface of the mold 2011 to prepare for the next round of mold closing and injection molding. In the process of the cylinder 2065 pulling the material strip to adjust the position, when the outer gear 2027 rotates, the pawl 2026 on the surface of the inner gear 2025 is pressed downward and does not engage with the ratchet 2028.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An automatic material pulling device for an injection molding machine, characterized in that: include: Main body assembly (100); An adjustment component (200) is arranged on the inner wall of the main body component (100), the adjustment component (200) comprising a bottom plate (201), a material pulling component (202) arranged at the end of the bottom plate (201), and an adjustment component (203) arranged on the outer wall of the bottom plate (201); a pulling structure is installed on the inner wall of the adjustment component (203); the pulling structure is used to drive the material belt to separate from the inner wall of the mold (211) arranged on the surface of the bottom plate (201) and align the material belt with the mold (211); the material pulling component (202) is used to drive the material belt to move on the surface of the mold (211); and the adjustment component (203) is used to push the material belt to align it with the mold (211).

2. The automatic material pulling device for an injection molding machine according to claim 1, characterized in that: The pulling structure comprises a pushing cylinder (2051) arranged on the outer wall of the base plate (201); a slide (2052) is connected to the surface of the pushing cylinder (2051); the slide (2052) is slidably matched with a guide rail (205) installed on the surface of the base plate (201); a moving block (2053) is arranged at the end of the slide (2052); and a roller (2054) is arranged on the outer wall of the moving block (2053); the roller (2054) is located on the outer wall of the material belt and is used to drive the material belt to leave the surface of the base plate (201).

3. The automatic material pulling device for an injection molding machine according to claim 2, characterized in that: The outer wall of the movable block (2053) is further provided with a fixed block (2055), the inner wall of the fixed block (2055) is movably provided with a rotating rod (206), the end of the rotating rod (206) is provided with a sliding column (2061), and the other end away from the sliding column (2061) is provided with a roller (2062), the outer wall of the sliding column (2061) is sleeved with a pushing block (2063), and the inner wall of the pushing block (2063) is provided with a threaded groove (2064), the sliding column The end of the screw thread groove (2061) extends to the inner wall of the screw thread groove (2064) and slidably cooperates therewith. A cylinder (2065) is further arranged inside the fixed block (2055) and an inclined block (2066) is arranged at the end of the cylinder (2065). The pushing block (2063) moves at the end of the rotating rod (206) and squeezes the inclined block (2066), driving the cylinder (2065) downward and squeezing the first elastic member (2067) arranged at the end of the inclined block (2066) to deform it.

4. The automatic material pulling device for an injection molding machine according to claim 3, characterized in that: A mounting plate (204) is fixed to the outer wall of the bottom plate (201); a guide plate (2042) is provided on the end face of the mounting plate (204); and a guide groove (207) is provided on the end face of the guide plate (2042); the roller (2062) slides on the inner wall of the guide groove (207); a rack (2071) is provided on the inner wall of the guide groove (207); and the rack (2071) meshes with a gear on the outer wall of the roller (2062).

5. The automatic material pulling device for an injection molding machine according to claim 4, characterized in that: A branch plate (2072) is hingedly connected to the inner wall of the guide groove (207), one end of the branch plate (2072) is located in a notch (2073) provided on the end surface of the guide groove (207), and the roller (2062) passes through the branch plate (2072) and enters the upper end of the guide groove (207).

6. The automatic material pulling device for an injection molding machine according to claim 5, characterized in that: The inner wall of the adjusting component (203) is provided with a limiting rod (2031), the outer wall of the limiting rod (2031) is movably provided with a movable plate (2032), the end of the limiting rod (2031) is sleeved with a second elastic member (2033) and the second elastic member (2033) is located at the end of the movable plate (2032), the end surface array of the movable plate (2032) is provided with an adjusting rod (2034) and the adjusting rod (2034) is opposite to a positioning column (2012) fixed on the surface of the bottom plate (201), and the positioning column (2012) is fixed to the outer wall of the mold (2011) opened on the surface of the bottom plate (201).

7. The automatic material pulling device for an injection molding machine according to claim 6, characterized in that: An opening (2041) is provided on the end surface of the mounting plate (204), an end of the movable plate (2032) extends to the inner wall of the opening (2041) and slidably cooperates therewith, and a push column (2035) is provided at the end of the movable plate (2032), and the push column (2035) extends into the interior of the opening (2041).

8. The automatic material pulling device for an injection molding machine according to claim 7, characterized in that: A driving motor (2043) is fixed to the outer wall of the mounting plate (204), an oblique ring (2044) is arranged at the axis of the driving motor (2043), an end of the pushing column (2035) is in contact with the end surface of the oblique ring (2044), and when the oblique ring (2044) rotates, it drives the pushing column (2035) to move.

9. The automatic material pulling device for an injection molding machine according to claim 8, characterized in that: The material pulling component (202) comprises a moving platform (2021), a strip board (2022) is fixed on the end surface of the moving platform (2021), and a cylinder (2023) is arranged on the end surface of the strip board (2022).

10. The automatic material pulling device for an injection molding machine according to claim 9, characterized in that: A servo motor (2024) is arranged inside the movable platform (2021), an internal gear (2025) is arranged at the axis of the servo motor (2024), a ratchet (2026) is arranged on the outer wall of the internal gear (2025), an external gear (2027) is sleeved on the outer wall of the internal gear (2025), and a ratchet (2028) is arranged on the inner wall of the external gear (2027), the ratchet (2026) is engaged with the ratchet (2028) and restricts the external gear (2027), and a pulling column (2029) is arranged on the outer wall of the external gear (2027) for pulling the material belt.

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