Injection molding machine

Abstract

The utility model belongs to the technical field of injection molding machines, and particularly relates to an injection molding machine which comprises an injection assembly and a supporting assembly and comprises a charging barrel, an injection head plate, an injection tail plate and a plunger rod, the charging barrel is connected with the injection head plate, the plunger rod is connected with the injection tail plate, the plunger rod is inserted into the charging barrel, and the plunger rod is connected with the injection head plate. The plunger rod can slide in the charging barrel so as to extrude materials in the charging barrel; and the supporting assembly is arranged on the injection head plate and is supported at the bottom of the charging barrel so as to support the charging barrel. According to the scheme, the supporting assembly is used for supporting the charging barrel, the problem that the charging barrel inclines downwards can be avoided, it is guaranteed that the center of the charging barrel and the axis of the plunger rod are located on the same straight line all the time, and the situation that when the plunger rod slides in the charging barrel, the plunger rod and the inner wall of the charging barrel are abraded, and a matching surface is abraded is avoided; the problems of glue leakage, plunger jamming and the like are avoided, and the plasticizing effect and the rigidity of a plasticizing mechanism are guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of injection molding machines, and particularly relates to an injection molding machine. BACKGROUND

[0002] At present, due to the production process, the barrel is relatively long, and the center of gravity of the barrel is located at the front side due to the filling of the material in the barrel, so that the barrel is fixed on the injection head plate to form a cantilever effect, which causes the center line of the injection unit to deviate, accelerates the wear of related parts, and affects the plasticizing effect and the rigidity of the plasticizing mechanism. CONTENT OF THE UTILITY MODEL

[0003] The application aims to solve the problems in the prior art, such as the long barrel, the filling of the material in the barrel, the formation of the cantilever effect of the barrel on the injection head plate, the deviation of the center line of the injection unit, the acceleration of the wear of related parts, and the influence on the plasticizing effect and the rigidity of the plasticizing mechanism.

[0004] The application provides an injection molding machine, which comprises:

[0005] An injection assembly comprises a barrel, an injection head plate, an injection tail plate and a plunger rod, the barrel is connected with the injection head plate, the plunger rod is connected with the injection tail plate, the plunger rod is inserted into the barrel, and the plunger rod can slide in the barrel to extrude the material in the barrel.

[0006] A supporting assembly is arranged on the injection head plate and supports the bottom of the barrel to support the barrel.

[0007] In an exemplary embodiment of the application, the supporting assembly comprises:

[0008] A supporting plate is connected with the bottom of the barrel.

[0009] An adjusting piece is arranged between the supporting plate and the injection head plate.

[0010] The adjusting piece can move in the axial direction of the barrel, and the supporting plate can move in the radial direction of the barrel during the movement of the adjusting piece to lift or lower the height of the barrel.

[0011] In an exemplary embodiment of the application, the injection head plate comprises a supporting bridge plate, and one side of the supporting bridge plate close to the barrel is an inclined surface.

[0012] The adjusting piece is arranged between the supporting bridge plate and the supporting plate, one side of the adjusting piece close to the supporting bridge plate is an adjusting surface, and the other side of the adjusting piece close to the barrel is a flat surface, and the adjusting surface is matched with the inclined surface.

[0013] Wherein, when the adjusting member slides on the inclined surface, the support plate is driven to move towards or away from the barrel.

[0014] In an exemplary embodiment of the present application, when the adjusting member moves towards the injection tail plate, the support plate moves towards the barrel; when the adjusting member moves away from the injection tail plate, the support plate moves away from the barrel.

[0015] In an exemplary embodiment of the present application, the slope of the inclined surface is 0.14-0.36.

[0016] In an exemplary embodiment of the present application, the adjusting member comprises an adjusting block and an inclined block, the adjusting block is arranged on the side wall of the inclined block, the upper and lower surfaces of the inclined block are respectively provided with the flat surface and the adjusting surface, and the adjusting block is provided with a first threaded hole and a second threaded hole.

[0017] The support assembly further comprises an ejection screw and a tension screw, the ejection screw penetrates the first threaded hole, and the ejection screw can exert an ejection force away from the side of the support bridge plate when tightened; the tension screw penetrates the second threaded hole, and the tension screw penetrating the second threaded hole is threadedly connected with a third threaded hole on the support bridge plate, and the tension screw can exert a tension force to the inside of the support bridge plate when tightened, the tension force is equal to the ejection force, so that the adjusting member is stably arranged between the support plate and the support bridge plate.

[0018] In an exemplary embodiment of the present application, the support assembly is provided with a first ejection screw and a second ejection screw, and the tension screw is arranged between the first ejection screw and the second ejection screw.

[0019] In an exemplary embodiment of the present application, the support plate comprises a body and a plurality of support columns arranged on the top of the body, the body is connected with the adjusting member, and the support columns are connected with the bottom of the barrel.

[0020] In an exemplary embodiment of the present application, the injection molding machine further comprises:

[0021] A base, the base is provided with a sliding rail extending in the axial direction of the barrel;

[0022] The bottom of the injection head plate and the bottom of the injection tail plate are both provided with a sliding block, the sliding block can slide on the sliding rail, so that the injection head plate and the injection tail plate slide on the base.

[0023] In an exemplary embodiment of the present application, the injection molding machine further comprises a first nut and a second nut, the first nut is connected with the barrel passing through the injection head plate to fix the barrel to the injection head plate; the second nut is connected with the plunger rod passing through the injection tail plate to fix the plunger rod to the injection tail plate; and / or

[0024] The injection head plate comprises a first injection oil cylinder, a second injection oil cylinder and a connecting part for connecting the first injection oil cylinder and the second injection oil cylinder, the connecting part is provided with a fixing hole for fixing the barrel, in the axial direction of the barrel, the length of the first injection oil cylinder and the second injection oil cylinder is longer than the length of the connecting part, and the first injection oil cylinder and the second injection oil cylinder are connected through the support bridge plate away from the injection tail plate.

[0025] The injection molding machine of the present application has at least the following beneficial effects:

[0026] The injection molding machine of the present application comprises an injection assembly and a support assembly. The injection assembly comprises a barrel, an injection head plate, an injection tail plate and a plunger rod, the barrel is connected with the injection head plate, the plunger rod is connected with the injection tail plate, the plunger rod can be inserted into the barrel, and the plunger rod can slide in the barrel to drive the material inside the barrel to be ejected. The support assembly is arranged on the injection head plate and supports the bottom of the barrel, which can support the barrel. By supporting the barrel with the support assembly, the problem of the barrel tilting downward due to the excessive length of the barrel and the excessive weight of the material inside the barrel can be avoided, ensuring that the center of the barrel and the axis of the plunger rod are always on the same straight line, avoiding the wear of the plunger rod and the inner wall of the barrel when the plunger rod slides in the barrel, and avoiding the problems of glue leakage and plunger jamming, ensuring the plasticizing effect and the rigidity of the plasticizing mechanism.

[0027] Other characteristics and advantages of the present application will become apparent from the following detailed description, or will be learned by practice of the present application.

[0028] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0029] The drawings herein are incorporated into the specification and form part of the specification, showing embodiments consistent with the present application, and together with the specification, serve to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1A perspective structural schematic diagram of an injection molding machine is shown.

[0031] Figure 2 A structural schematic diagram of an injection head plate is shown.

[0032] Figure 3 A front view structural schematic diagram of an injection molding machine is shown.

[0033] Figure 4 A perspective structural schematic diagram of an injection molding machine is shown. Figure 3 A cross-sectional structural schematic diagram of A-A' in the injection molding machine is shown.

[0034] Figure 5 A perspective structural schematic diagram of an injection molding machine is shown. Figure 4 A structural schematic diagram of a connection between a barrel and a support assembly at B in the injection molding machine is shown.

[0035] Figure 6 A structural schematic diagram of a support assembly is shown.

[0036] Legend of reference signs:

[0037] 100, injection molding machine; 110, injection assembly; 111, injection head plate; 111a, first injection oil cylinder; 111b, second injection oil cylinder; 111c, connecting part; 1110, support bridge plate; 112, barrel; 1120, first step position; 113, plunger rod; 1130, second step position; 114, injection tail plate; 114a, first plunger rod; 114b, second plunger rod; 120, support assembly; 121, support plate; 1210, body; 1211, support column; 1211a, first support column; 1211b, second support column; 1211c, third support column; 1211d, fourth support column; 122, adjusting piece; 122a, adjusting surface; 1220, adjusting block; 1221, inclined block; 123, ejection screw; 123a, first ejection screw; 123b, second ejection screw; 124, tensioning screw; 130, base; 131, slide rail; 140, slide block; 150, first pin; 160, first nut; 170, second pin; 180, second nut. DETAILED DESCRIPTION

[0038] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example implementations to those skilled in the art.

[0039] In the present application, the terms "first", "second" are used only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0040] In the present application, unless otherwise explicitly specified and limited, the terms "assembly", "connection" and other terms should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or integral; can be mechanical connection, can be electrical connection; can be directly connected, can be indirectly connected through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In addition, the described features, structures or characteristics can be combined in any suitable way in one or more embodiments. In the following description, many specific details are provided to give a sufficient understanding of the embodiments of the present application. However, those skilled in the art will realize that the technical solutions of the present application can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be used. In other cases, well-known methods, devices, implementations or operations are not shown or described in detail to avoid obscuring the aspects of the present application.

[0042] Figure 1 A perspective structural schematic diagram of an injection molding machine provided by an embodiment of the present application is shown. Figure 2 A structural schematic diagram of an injection head plate provided by an embodiment of the present application is shown. Figure 3 A front view structural schematic diagram of an injection molding machine provided by an embodiment of the present application is shown. Figure 4 A cross-sectional structural schematic diagram of the injection molding machine provided by an embodiment of the present application is shown. Figure 3 A cross-sectional structural schematic diagram of the injection molding machine provided by an embodiment of the present application is shown. Figure 5 A cross-sectional structural schematic diagram of the injection molding machine provided by an embodiment of the present application is shown. Figure 4 A structural schematic diagram of the connection between the barrel and the support assembly at position B in the injection molding machine provided by an embodiment of the present application is shown. Figure 6 A structural schematic diagram of the support assembly provided by an embodiment of the present application is shown.

[0043] An injection molding machine 100 is provided by an embodiment of the present application, which can be used for injection molding of materials such as resin.

[0044] In some embodiments of the present application, referring to Figure 1 As shown, the injection molding machine 100 includes an injection assembly 110 and a support assembly 120. The injection assembly 110 is used to eject molten material. The support assembly 120 is used to support the injection assembly 110.

[0045] Wherein, please continue to see Figures 1 to 4 As shown in the figure, the injection assembly 110 includes an injection head plate 111, a barrel 112, a plunger rod 113 and an injection tail plate 114.

[0046] In some embodiments of the present application, please see Figures 1 to 4 As shown in the figure, the injection head plate 111 and the injection tail plate 114 are spaced apart from each other. The injection head plate 111 is provided with a through hole (not shown in the figure), and the barrel 112 passes through the through hole of the injection head plate 111 and exposes part of the barrel 112.

[0047] In some embodiments of the present application, the injection tail plate 114 is provided with a through hole corresponding to the fixed hole, and the plunger rod 113 passes through the through hole of the injection tail plate 114 and exposes part of the plunger rod 113.

[0048] In some embodiments of the present application, please see Figure 4 As shown in the figure, the barrel 112 is a cylindrical hollow structure, and the inside of the barrel 112 can store high-temperature and high-pressure molten plastic.

[0049] In some embodiments of the present application, please continue to see Figure 1 And Figure 4 As shown in the figure, the side of the plunger rod 113 close to the injection head plate 111 can be inserted into the inside of the barrel 112 and can move relative to the barrel 112 to push the material inside the barrel 112 to complete injection.

[0050] In some embodiments of the present application, please see Figure 1 And Figure 4 As shown in the figure, the plunger rod 113 and the barrel 112 can adopt a cylindrical structure, and the center of the plunger rod 113 and the center of the barrel 112 are located on the same straight line, that is, the barrel 112 and the plunger rod 113 are concentric. When the plunger rod 113 moves axially relative to the barrel 112, the inner wall of the barrel 112 will not be abraded, and thus the faults such as glue leakage and plunger rod 113 jamming will not occur.

[0051] In some embodiments of the present application, the injection tail plate 114 can move relative to the injection head plate 111; for example, move towards the side close to the injection head plate 111 or move away from the side away from the injection head plate 111, thereby driving the plunger rod 113 to move in the barrel 112 along its axial direction.

[0052] It can be understood that, in order to avoid the material inside the barrel 112 from flowing out from the side of the plunger rod 113, the cooperation gap between the inner diameter of the barrel 112 and the outer diameter of the plunger rod 113 is tightly connected.

[0053] In some embodiments of the present application, please see Figure 1As shown in the figure, the injection head plate 111 includes a first injection oil cylinder 111a and a second injection oil cylinder 111b located on opposite sides of the barrel 112, respectively. The first injection oil cylinder 111a and the second injection oil cylinder 111b are connected with a first piston rod 114a and a second piston rod 114b on the injection tail plate 114, one end of the first piston rod 114a is inserted into the first injection oil cylinder 111a, and the other end is inserted into the injection tail plate 114, one end of the second piston rod 114b is inserted into the second injection oil cylinder 111b, and the other end is inserted into the injection tail plate 114.

[0054] As shown in the figure, Figure 1 As shown in the figure, the first injection oil cylinder 111a and the second injection oil cylinder 111b can drive the first piston rod 114a and the second piston rod 114b to move linearly in the axial direction of the barrel 112, and then drive the injection tail plate 114 to move linearly in the axial direction of the barrel 112, so as to drive the plunger rod 113 to move linearly in the barrel 112, so as to extrude the material in the barrel 112.

[0055] In some embodiments of the present application, please continue to refer to Figure 1 As shown in the figure, the injection head plate 111 further includes a connecting portion 111c for connecting the first injection oil cylinder 111a and the second injection oil cylinder 111b, the connecting portion 111c is provided with a material port (not marked in the figure) for feeding material and the fixed hole. The fixed hole is provided in the axial direction of the barrel 112, and the material port is provided at the top of the connecting portion 111c and communicates with the inside of the barrel 112, so that the material can be directly fed between the barrel 112 and the plunger rod 113 to complete the injection molding.

[0056] It should be noted that, please continue to refer to Figure 1 As shown in the figure, in the axial direction of the barrel 112, the length of the first injection oil cylinder 111a and the second injection oil cylinder 111b is longer than the length of the connecting portion 111c, and the length of the barrel 112 away from the injection tail plate 114 is longer than the length of the first injection oil cylinder 111a and the second injection oil cylinder 111b.

[0057] During the pushing process of the plunger rod 113, the material is mainly concentrated on the front side of the barrel 112. Because the length of the barrel 112 is relatively long, when the material is concentrated on the front side of the barrel 112, the center of gravity of the barrel 112 moves forward, which will cause the barrel 112 to tilt downward, and then cause the inner diameter of the barrel 112 to be eccentric with the outer diameter of the plunger rod 113. At this time, when the plunger rod 113 and the barrel 112 move again, the plunger rod 113 and the inner wall of the barrel 112 will be worn, and then the faults such as glue leakage and plunger rod 113 jamming will occur.

[0058] In some embodiments of the present application, please refer to Figure 1As shown in the drawings, the support assembly 120 is arranged on the front side of the barrel 112. The support assembly 120 is arranged on the injection head plate 111 and supported on the bottom of the barrel 112 to support the barrel 112, thereby avoiding the barrel 112 from tilting downward, ensuring the inner diameter of the barrel 112 and the outer diameter of the plunger rod 113 are concentric, and the plunger rod 113 will not be abraded by the inner wall of the barrel 112, ensuring the injection effect.

[0059] It can be understood that the support assembly 120 can automatically adjust the height of the barrel 112, or manually adjust the height of the barrel 112.

[0060] In some embodiments of the present application, referring to Figure 5 and Figure 6 As shown in the drawings, the support assembly 120 includes a support plate 121 and an adjusting member 122. The support plate 121 is connected to the bottom of the barrel 112, which is used to support the barrel 112 and move the barrel 112 together. The adjusting member 122 is arranged between the support plate 121 and the injection head plate 111. The adjusting member 122 can move in the axial direction of the barrel 112, and the support plate 121 can move in the radial direction of the barrel 112 during the movement of the adjusting member 122, that is, the support plate 121 can move in the direction of gravity to lift or lower the height of the barrel 112, so that the inner diameter of the barrel 112 and the outer diameter of the plunger rod 113 are concentric, ensuring that the plunger rod 113 and the inner wall of the barrel 112 will not be abraded, ensuring the injection effect.

[0061] In another embodiment of the present application, the injection molding machine 100 further comprises a laser sensor and a controller. The laser sensor is used to detect the position of the barrel 112 from the placement platform, and the controller can receive the position signal transmitted by the laser sensor. The controller can determine whether to control the support assembly 120 to work according to the position signal and the preset position range signal. The support assembly 120 can adopt a hydraulic structure or a mechanical driving structure. When the position of the barrel 112 from the placement platform does not conform to the preset position range signal, the controller will control the hydraulic structure or the mechanical driving structure to work, so that the inner diameter of the barrel 112 and the outer diameter of the plunger rod 113 are concentric, ensuring that the plunger rod 113 and the inner wall of the barrel 112 will not be abraded, ensuring the injection effect.

[0062] It should be noted that the adjusting member 122 can adopt a connecting rod structure, a wedge structure, or a gear and rack structure to drive the support plate 121 to move upward or downward.

[0063] In some embodiments of the present application, referring to Figure 5 and Figure 6 As shown in the drawings, the adjusting member 122 adopts a wedge-shaped adjusting plate, that is, the adjusting member 122 has an inclined adjusting surface 122a.

[0064] In some embodiments of the present application, referring to Figure 2 As shown, the injection head plate 111 comprises a support bridge plate 1110. This support bridge plate 1110 can be used to connect the first injection cylinder 111a and the second injection cylinder 111b away from the side of the injection tail plate 114, i.e. the support bridge plate 1110 is used to connect the head of the first injection cylinder 111a and the second injection cylinder 111b.

[0065] In some embodiments of the present application, the support assembly 120 can be placed on this support bridge plate 1110. The side of the support bridge plate 1110 close to the barrel 112 is an inclined surface, and the adjusting member 122 is arranged between the support bridge plate 1110 and the support plate 121. The adjusting surface 122a of the adjusting member 122 is matched with the inclined surface of the support bridge plate 1110. During the axial movement of the adjusting member 122, the adjusting surface 122a slides on the inclined surface, thereby driving the support plate 121 to move upward or downward, so that the inner diameter of the barrel 112 and the outer diameter of the plunger rod 113 are coaxially arranged.

[0066] It can be understood that the upward or downward movement of the support plate 121 is determined according to the design position of the inclined surface and the movement position of the support member.

[0067] For example, referring to Figure 5 As shown, the side of the adjusting member 122 close to the barrel 112 is a flat surface, and the support plate 121 is stably fixed on the adjusting member 122 and is not easy to incline, thereby ensuring the support effect of the support plate 121 on the barrel 112. The support plate 121 and the adjusting member 122 can be connected in a detachable manner by using bolts or rivets. The adjusting surface 122a is arranged on the side of the adjusting member 122 facing the support bridge plate 1110. When the adjusting member 122 moves toward the side close to the injection tail plate 114, the support plate 121 moves toward the side close to the barrel 112, i.e. when the adjusting member 122 moves toward the side close to the injection tail plate 114, the support plate 121 is driven to move upward, thereby lifting the barrel 112 upward, so that the inner diameter of the barrel 112 and the outer diameter of the plunger rod 113 are coaxial. When the adjusting member 122 moves away from the side of the injection tail plate 114, the support plate 121 moves away from the side of the barrel 112, i.e. when the adjusting member 122 moves away from the side of the injection tail plate 114, the support plate 121 is driven to move downward, so that the barrel 112 moves downward, so that the inner diameter of the barrel 112 and the outer diameter of the plunger rod 113 are coaxial.

[0068] In another example, the adjusting member 122 is flat on one side close to the barrel 112, and the support plate 121 is more stably fixed on the adjusting member 122 and is not easy to tilt, thereby ensuring the supporting effect of the support plate 121 on the barrel 112. The support plate 121 and the adjusting member 122 can be detachably connected by bolts or rivets. The adjusting surface 122a is also arranged towards the support bridge plate 1110. When the adjusting member 122 moves towards the side close to the injection tail plate 114, the support plate 121 moves downwards, that is, when the adjusting member 122 moves towards the side close to the injection tail plate 114, the support plate 121 is driven to move downwards, so that the inner diameter of the barrel 112 is concentrically arranged with the outer diameter of the plunger rod 113. When the adjusting member 122 moves away from the side of the injection tail plate 114, the support plate 121 moves upwards, that is, when the adjusting member 122 moves away from the side of the injection tail plate 114, the support plate 121 is driven to move upwards, so that the inner diameter of the barrel 112 is concentrically arranged with the outer diameter of the plunger rod 113.

[0069] That is, according to the different inclination directions of the inclined surface, the moving position of the adjusting member 122 will drive the support plate 121 to move in the opposite direction.

[0070] In some embodiments of the present application, in order to facilitate the adjustment of the adjusting member 122, the inclination direction of the inclined surface is left-downward, taking the right view as the standard. The front view is the front side of the injection barrel 112.

[0071] In some embodiments of the present application, the slope of the inclined surface is 0.14 to 0.36. For example, it can be 0.14, 0.18, 0.21, 0.25, 0.30, 0.36, etc.

[0072] It can be understood that the slope of the inclined surface corresponds to the inclination slope of the support bridge plate 1110, and the size of the inclination slope is related to the inclination angle, that is, the inclination angle of the support bridge plate 1110 can be 8° to 30°, for example, 8°, 10°, 22°, 24°, 27°, 30°.

[0073] That is, the greater the slope of the inclined surface, the greater the inclination slope of the support bridge plate 1110, and the steeper the support bridge plate 1110. Correspondingly, the inclined surface is matched with the adjusting surface 122a. When the slope of the inclined surface is greater, the inclination slope of the adjusting member 122 is also greater, and the moving distance of the support plate 121 becomes farther. Specifically, it can be determined according to the length of the barrel 112 and the weight of the material stored inside. When the barrel 112 is long and the material is heavy, the slope of the inclined surface can be greater to ensure the supporting effect on the barrel 112. When the barrel 112 is short and the material is light, the slope of the inclined surface can be smaller to make the inner diameter of the barrel 112 concentrically arranged with the outer diameter of the plunger rod 113.

[0074] In some embodiments of the present application, please refer toFigure 5 and Figure 6 As shown, in order to ensure that the adjusting member 122 does not fall off the support bridge plate 1110, and to adjust the depth of the adjusting member 122 inserted between the support plate 121 and the support bridge plate 1110, the support assembly 120 also includes an ejector screw 123 and a tensioning screw 124 to fix the adjusting member 122 on the support bridge plate 1110 and to adjust the depth of the adjusting member 122 inserted between the support plate 121 and the support bridge plate 1110, thereby adjusting the height of the support plate 121.

[0075] It is understandable that the support bridge plate 1110 and the injection head plate 111 can be fixedly connected by detachable means such as screws or rivets.

[0076] Please refer to some embodiments of this application. Figure 6 As shown, the adjusting component 122 includes an adjusting block 1220 and an inclined block 1221. The adjusting block 1220 and the inclined block 1221 can be integrally formed or assembled. The adjusting block 1220 is provided on the side wall of the inclined block 1221. In an optional embodiment, the adjusting block 1220 is provided on the side of the inclined block 1221 away from the injection tail plate 114, that is, the adjusting block 1220 is provided on the side of the inclined block 1221 away from the injection tail plate 114, so as to facilitate the subsequent adjustment of the ejection screw 123 and the tensioning screw 124.

[0077] Please see below. Figure 5 and Figure 6 As shown, the top surface of the tilting block 1221 is a plane, and the bottom surface of the tilting block 1221 is an adjusting surface 122a. The adjusting block 1220 is connected to the adjusting surface 122a, and the length of the adjusting block 1220 is greater than the thickness of the tilting block 1221. The adjusting block 1220 is provided with a mounting part, which is connected to the highest point of the adjusting surface 122a. The mounting part corresponds to and is spaced apart from the supporting bridge plate 1110.

[0078] Please see Figure 6 As shown, the mounting part is provided with a first threaded hole and a second threaded hole. The first threaded hole is used to connect with the ejector screw 123, which passes through the first threaded hole. The second threaded hole is used to connect with the tension screw 124, which passes through the second threaded hole and is threadedly connected with a third threaded hole on the support bridge plate 1110.

[0079] Tighten the ejector screw 123 installed in the first threaded hole, the ejector screw 123 will generate an ejecting force away from the support bridge plate 1110. At the same time, tighten the tensioning screw 124 installed in the second threaded hole, the tensioning screw 124 gradually extends into the third threaded hole in the support bridge plate 1110, so that the adjusting part 122 generates a tensioning force close to the support bridge plate 1110, at this time, the balance of the ejecting force and the tensioning force will make the adjusting part 122 not slide on the inclined surface, so that the adjusting part 122 is fixed between the support plate 121 and the support bridge plate 1110, thereby ensuring the stability of the support plate 121 to the barrel 112, ensuring that the inner diameter of the barrel 112 and the outer diameter of the plunger rod 113 are always concentric, and ensuring the injection effect.

[0080] In some embodiments of the present application, referring to Figure 6 As shown, the support assembly 120 is provided with a first ejector screw 123a and a second ejector screw 123b, which are respectively arranged on both sides of the tensioning screw 124. That is, two first threaded holes are respectively arranged on both sides of the second threaded hole of the mounting portion, and the two first threaded holes are symmetrically arranged with respect to the center of the second threaded hole.

[0081] It can be understood that, by the first ejector screw 123a and the second ejector screw 123b, the asymmetric setting of the ejecting force is avoided, so that the adjusting part 122 slides on the inclined surface, and the stability of the support plate 121 to the barrel 112 is ensured.

[0082] In addition, by adjusting the tightening distance of the ejector screw 123 and the tensioning screw 124, the position of the adjusting part 122 between the support plate 121 and the support bridge plate 1110 can be adjusted, that is, the size of the adjusting part 122 inserted between the support plate 121 and the support bridge plate 1110 is adjusted, so that the moving position of the support plate 121 is controlled, and then the support force is given to the barrel 112 to adjust the height of the front end of the barrel 112, so that the inner diameter of the barrel 112 and the outer diameter of the plunger rod 113 are kept concentric.

[0083] In some embodiments of the present application, referring to Figure 6 As shown, the nut is arranged between the ejector screw 123 and the tensioning screw 124 and the mounting portion, so as to avoid the problem of damage to the mounting portion caused by the abutment between the ejector screw 123 and the tensioning screw 124 and the mounting portion.

[0084] In some embodiments of the present application, referring to Figure 6As shown, the support plate 121 comprises a body 1210 and a plurality of support columns 1211 arranged on the top of the body 1210. The body 1210 adopts a planar plate structure, and can also adopt other structures, for example, an arc structure, etc. The support columns 1211 are used to connect the barrel 112, which can improve the overall rigidity and stability of the support assembly 120, and reduce the risk of deformation and damage of the support assembly 120.

[0085] For example, as shown in Figure 6 As shown, the support plate 121 comprises a body 1210, a first support column 1211a, a second support column 1211b, a third support column 1211c, and a fourth support column 1211d. The first support column 1211a, the second support column 1211b, the third support column 1211c, and the fourth support column 1211d are arranged at the four corners of the support plate 121, respectively. One end of each of the first support column 1211a, the second support column 1211b, the third support column 1211c, and the fourth support column 1211d is fixedly connected to the bottom of the barrel 112. By adjusting the ejection screw 123 and the tensioning screw 124, the first support column 1211a, the second support column 1211b, the third support column 1211c, and the fourth support column 1211d can be adjusted to move upward or downward, thereby lifting or lowering the barrel 112.

[0086] In some embodiments of the present application, as shown in Figure 1 and Figure 4 As shown, the injection molding machine 100 further comprises a base 130. The base 130 can have an elongated strip structure. The injection head plate 111 and the injection tail plate 114 are arranged on the base 130. In order to facilitate the movement of the injection tail plate 114 relative to the injection head plate 111, the base 130 is further provided with a sliding rail 131 extending in the axial direction of the barrel 112. The bottom of the injection head plate 111 and the bottom of the injection tail plate 114 are both provided with a sliding block 140, which is fixed to the injection head plate 111 and the injection tail plate 114. The sliding block 140 is slidably arranged on the sliding rail 131, so that the injection head plate 111 and the injection tail plate 114 can slide relative to each other.

[0087] In some embodiments of the present application, as shown in Figure 4 As shown, the injection head plate 111 and the injection tail plate 114 are respectively provided with 6 sliding blocks 140 and 4 sliding blocks 140, which are used to drive the injection head plate 111 and the injection tail plate 114 to move.

[0088] In some embodiments of the present application, as shown in Figure 4As shown, the first step position 1120 on the barrel 112 abuts against the injection head plate 111 to limit the displacement of the barrel 112 in the axial direction. The first pin 150 hole is provided on the barrel 112 close to the first step position 1120, and the first limiting hole corresponding to the first pin 150 is provided on the injection head plate 111. When the first pin 150 is inserted into the first pin 150 hole and the barrel 112 is inserted into the middle hole, the first pin 150 is located in the first limiting hole to limit the movement of the barrel 112 in the circumferential direction.

[0089] In addition, referring to Figure 4 As shown, the barrel 112 passes through the middle hole on the injection head plate 111 and exposes a part of the barrel 112. In order to better fix the barrel 112, the first nut 160 is arranged on the tail of the barrel 112 to fix the barrel 112 on the injection head plate 111.

[0090] Correspondingly, referring to Figure 4 As shown, the second step position 1130 on the plunger rod 113 abuts against the injection tail plate 114 to limit the displacement of the plunger rod 113 in the axial direction. The second pin 170 hole is provided on the plunger rod 113 close to the second step position 1130, and the second limiting hole corresponding to the second pin 170 is provided on the injection tail plate 114. When the second pin 170 is inserted into the second pin 170 hole and the plunger rod 113 is inserted into the through hole, the second pin 170 is also located in the second limiting hole to limit the movement of the plunger rod 113 in the circumferential direction.

[0091] In addition, referring to Figure 4 As shown, the plunger rod 113 passes through the through hole on the injection tail plate 114 and exposes a part of the plunger rod 113. In order to better fix the plunger rod 113, the second nut 180 is arranged on the tail of the plunger rod 113 to fix the plunger rod 113 on the injection tail plate 114.

[0092] In the description of the present specification, the description referring to the terms "some embodiments", "exemplarily", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0093] Although the embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are merely exemplary, and are not to be construed as limiting the present application, and that changes, modifications, substitutions and variations can be made thereto by those skilled in the art without departing from the scope of the present application, and that any changes or modifications made by the present claims and specification should be within the scope of the present patent.

Claims

1. An injection molding machine, characterized in that, include: An injection assembly includes a barrel, an injection head plate, an injection tail plate, and a plunger rod. The barrel is connected to the injection head plate, and the plunger rod is connected to the injection tail plate. The plunger rod is inserted into the barrel and can slide within the barrel to compress the material inside the barrel. A support assembly is disposed on the injection head plate and supported at the bottom of the barrel to support the barrel.

2. The injection molding machine according to claim 1, characterized in that, The support components include: A support plate, which is connected to the bottom of the material cylinder; An adjusting member is disposed between the support plate and the injection head plate; The adjusting member is movable in the axial direction of the material cylinder, and the support plate is movable in the radial direction of the material cylinder during the movement of the adjusting member, so as to raise or lower the height of the material cylinder.

3. The injection molding machine according to claim 2, characterized in that, The injection head plate includes a support bridge plate, and the side of the support bridge plate near the barrel is an inclined surface; The adjusting member is disposed between the supporting bridge plate and the supporting plate, and the side of the adjusting member facing the supporting bridge plate is the adjusting surface, the side of the adjusting member facing the material cylinder is a plane, and the adjusting surface matches the inclined surface; When the adjusting member slides on the inclined surface, it drives the support plate to move towards or away from the material cylinder.

4. The injection molding machine according to claim 3, characterized in that, When the adjusting member moves toward the side closer to the injection tail plate, the support plate moves toward the side closer to the barrel; when the adjusting member moves away from the injection tail plate, the support plate moves away from the barrel.

5. The injection molding machine according to claim 4, characterized in that, The slope of the inclined surface is 0.14-0.

36.

6. The injection molding machine according to claim 4, characterized in that, The adjusting component includes an adjusting block and an inclined block. The adjusting block is disposed on the side wall of the inclined block. The upper and lower surfaces of the inclined block are respectively provided with the plane and the adjusting surface. The adjusting block is provided with a first threaded hole and a second threaded hole. The support assembly further includes an ejector screw and a tension screw. The ejector screw passes through the first threaded hole and can apply an ejection force away from the support bridge plate when tightened. The tension screw passes through the second threaded hole and is threadedly connected to a third threaded hole on the support bridge plate. The tension screw can apply a tension force into the support bridge plate when tightened. The tension force is equal to the ejection force, so as to stabilize the adjusting member between the support plate and the support bridge plate.

7. The injection molding machine according to claim 6, characterized in that, The support assembly is provided with a first ejector screw and a second ejector screw, and the tensioning screw is located between the first ejector screw and the second ejector screw.

8. The injection molding machine according to claim 2, characterized in that, The support plate includes a body and a plurality of support columns disposed on the top of the body. The body is connected to the adjusting member, and the support columns are connected to the bottom of the material cylinder.

9. The injection molding machine according to claim 1, characterized in that, The injection molding machine also includes: A base, wherein a slide rail extends axially from the material cylinder; The bottom of the injection head plate and the bottom of the injection tail plate are both provided with sliders, which can slide on the slide rail so that the injection head plate and the injection tail plate can slide on the base.

10. The injection molding machine according to claim 3, characterized in that, The injection molding machine further includes a first nut and a second nut, the first nut being connected to the barrel passing through the injection head plate to fix the barrel to the injection head plate; the second nut being connected to the plunger rod passing through the injection tail plate to fix the plunger rod to the injection tail plate; and / or The injection head plate includes a first injection cylinder, a second injection cylinder, and a connecting part for connecting the first injection cylinder and the second injection cylinder. The connecting part is provided with a fixing hole for fixing the material cylinder. In the axial direction of the material cylinder, the length of the first injection cylinder and the second injection cylinder is longer than the length of the connecting part, and the first injection cylinder and the second injection cylinder are connected by the support bridge plate on the side away from the injection tail plate.

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