A glue injection tail plate locking port structure

Abstract

The application belongs to the technical field of electric injection molding machines, and particularly discloses a glue injection tail plate locking port structure arranged on the glue injection tail of an electric injection molding machine, which comprises two groups of locking components, the two groups of locking components are correspondingly matched with two supporting legs respectively, and each group of locking components comprises at least two locking pieces. The glue injection tail plate locking port structure is used for fixing the limiting structure on the guide plate by the vertical connecting part of the locking piece, and simultaneously, the horizontal locking part is used for forming the physical limiting in the vertical direction on the supporting leg, so that the up-and-down movement freedom of the supporting leg is effectively restricted without affecting the normal sliding of the guide plate along the guide rail.

Description

Technical Field

[0001] This invention relates to the field of electric injection molding machine technology, and in particular to a locking structure for an injection tail plate. Background Technology

[0002] The injection tail section of an electric injection molding machine typically includes a tail section body, two opposing support legs fixedly connected to the lower part of the tail section body, guide plates connected to the lower parts of the support legs, and guide rails fixed to the injection molding machine frame. The guide plates are slidably fitted onto the guide rails, allowing the entire injection tail section to move linearly back and forth along the guide rails. The injection tail section has two injection plates. During actual operation, the two injection plates move at high speed back and forth in the injection direction under the transmission action of the front and rear lead screws to complete the injection action.

[0003] In actual operation, the injection tail section primarily relies on the sliding fit between the guide plate and the guide rail for guidance and support. However, during injection, the high-speed linear motion of the injection plate generates a momentary impact force that surges upwards in the vertical direction (perpendicular to the guide rail) due to factors such as the meshing clearance of the screw drive pair, the clearance of the guide rail fit, and sudden changes in injection resistance. This momentary impact force is transmitted to the guide plate and guide rail at the injection tail section, causing a slight vertical jump in the guide plate, which in turn causes the entire injection tail section to sway up and down during the injection process. This swaying not only exacerbates wear between the guide rail and guide plate, reducing the equipment's service life, but also directly affects the coaxiality of the injection screw and the stability of the injection pressure, leading to decreased weight repeatability accuracy of the injection molded products and severely impacting product quality.

[0004] In summary, the existing technology suffers from the problem of instantaneous impact force during the sliding process of the injection tail, causing vertical movement, which in turn aggravates the wear between the guide rail and the guide plate and reduces the service life of the equipment. Summary of the Invention

[0005] This invention provides a locking structure for a glue injection tail plate, which can solve the problem in the prior art where the instantaneous impact force during the sliding process of the glue injection tail causes vertical movement, which in turn aggravates the wear between the guide rail and the guide plate and reduces the service life of the equipment.

[0006] A locking structure for a glue injection tail plate is provided on the glue injection tail of an electric injection molding machine. The glue injection tail includes a tail body, two oppositely arranged support legs, a guide plate, and a guide rail. The tail body is mounted on the guide plate via the two support legs, and the guide plate is slidably disposed on the guide rail. The locking structure for the glue injection tail plate includes two sets of locking components, which respectively cooperate with the two support legs. Each set of locking components includes at least two locking elements. The locking member includes a vertical connecting part and a horizontal locking part. The vertical connecting part is connected to the guide plate, and the horizontal locking part is connected to the vertical connecting part and extends upward to the corresponding support leg to limit the support leg in the vertical direction.

[0007] Furthermore, an adjustment mechanism is provided between the two support legs; The adjustment mechanism includes: An intermediate gear is rotatably mounted on the guide plate; Two racks are arranged in parallel and opposite directions and respectively mesh with the intermediate gear. The opposite ends of the two racks are respectively connected to the vertical connecting parts in the two sets of locking assemblies. An external drive mechanism, connected to the intermediate gear, is used to drive the intermediate gear to rotate, thereby causing the two sets of locking components to move closer or further apart via the two racks.

[0008] Furthermore, the guide plate is also provided with guide plates that respectively cooperate with the two racks, and the racks are slidably engaged with the corresponding guide plates.

[0009] Furthermore, the guide plate is U-shaped, and the rack is slidably disposed within the U-shaped opening of the guide plate.

[0010] Furthermore, the lateral locking part has an inclined surface on one side near the support leg.

[0011] Furthermore, the vertical connecting part is fixed to the guide plate by bolt connection.

[0012] Furthermore, an elastic buffer assembly is provided on the side of the lateral locking part near the support leg; The elastic buffer assembly includes an intermediate buffer and a first connecting plate and a second connecting plate respectively disposed on both sides of the intermediate buffer. The first connecting plate is connected to the lateral locking part, and the second connecting plate is used to abut against the support leg.

[0013] Furthermore, the elastic cushioning component is a spring or a rubber pad.

[0014] Furthermore, the elastic buffer assembly also includes a sleeve structure disposed outside the intermediate buffer member, the sleeve structure including a first sleeve and a second sleeve slidably sleeved inside the first sleeve; The first sleeve is connected to the first connecting plate, and the second sleeve is connected to the second connecting plate.

[0015] Furthermore, the injection tailplate locking structure also includes a pressure sensor, which is located on the side of the lateral locking part near the support leg and is used to detect the pressure between the lateral locking part and the support leg.

[0016] This invention provides a locking structure for a glue injection tailplate, which, compared to the prior art, has, but is not limited to, the following beneficial effects: In this injection tailplate locking structure, two sets of locking components are respectively engaged with two support legs. Specifically, the first set of locking components engages with the support leg on the left, and the second set engages with the support leg on the right. Each locking component set includes at least two locking elements, which are spaced apart above the corresponding support leg along the front-to-back direction of the injection tail (i.e., the injection direction). By setting multiple locking elements on the same support leg, the support leg can be simultaneously limited vertically from multiple positions, ensuring a uniform distribution of limiting force and preventing stress concentration caused by excessive force on a single locking element.

[0017] The locking component can be L-shaped, comprising a vertical connecting part and a horizontal locking part. The vertical connecting part extends vertically, with its lower end connected to the upper surface of the guide plate. The horizontal locking part extends horizontally, connecting to or near the upper end of the vertical connecting part, and extends upwards towards the corresponding support leg, so that the projection of the support leg in the vertical direction at least partially falls within the coverage area of ​​the horizontal locking part. In other words, the horizontal locking part can be suspended above the support leg, forming a small gap or being in contact with the lower surface of the horizontal locking part between the upper surface of the support leg and the lower surface of the horizontal locking part, thereby physically limiting the support leg in the vertical direction. When an upward instantaneous impact force is generated during the injection process, and the support leg tends to move upwards, the upper surface of the support leg immediately abuts against the lower surface of the horizontal locking part. The horizontal locking part transmits the limiting reaction force to the guide plate through the vertical connecting part, thereby preventing the support leg from continuing to move upwards and achieving displacement constraint on the injection tail in the vertical direction.

[0018] This invention provides a locking structure for a glue injection tail plate. The vertical connecting part of the locking member fixes the limiting structure to the guide plate, while the horizontal locking part forms a physical limit on the support leg in the vertical direction. Thus, without affecting the normal sliding of the guide plate along the guide rail, the vertical movement freedom of the support leg is effectively constrained. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a front view of a glue injection tailplate locking stop structure provided by the present invention; Figure 2 This is a schematic diagram of a locking stop structure for a glue injection tailplate provided by the present invention; Figure 3 Provided by the present invention Figure 2 Enlarged view of the structure at point A in the image; Figure 4 A cross-sectional view of an elastic buffer assembly for a glue injection tailplate locking stop structure provided by the present invention; Figure 5 The main structural view of the adjustment mechanism of the injection tail plate locking stop structure provided by the present invention; Figure 6 A top view of the adjustment mechanism of the injection tail plate locking stop structure provided by the present invention; Figure 7 A partial top view of the adjustment mechanism for a glue injection tailplate locking stop structure provided by the present invention; Figure 8 A front view of a glue injection tailplate locking structure provided in one embodiment of the present invention; Figure 9 Provided by the present invention Figure 8 Enlarged view of the structure at point B in the image.

[0020] Explanation of reference numerals in the attached figures: 1. Injection tail section; 101. Tail section body; 102. Support leg; 103. Guide plate; 104. Guide rail; 2. Locking component; 201. Vertical connecting part; 202. Horizontal locking part; 203. Inclined surface; 3. Adjustment mechanism; 301. Intermediate gear; 302. Rack; 4. Elastic buffer assembly; 401. Intermediate buffer component; 402. First connecting plate; 403. Second connecting plate; 404. First sleeve; 405. Second sleeve. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, specific embodiments of this application are described clearly and completely below with reference to the accompanying drawings. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0022] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the specification of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," "comprise," etc., in the specification, claims, and accompanying drawings of this application are open-ended terms, indicating that a method comprises one or more steps, or an apparatus comprises one or more elements, but do not exclude the inclusion of other steps or elements. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or primary / secondary relationship. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, C and / or B can represent: C existing alone, C and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0026] like Figures 1 to 2As shown, an injection tail plate locking structure provided in this embodiment of the invention is provided on the injection tail 1 of an electric injection molding machine. The injection tail 1 includes a tail body 101, two oppositely arranged support legs 102, a guide plate 103 and a guide rail 104. The tail body 101 is mounted on the guide plate 103 through the two support legs 102, and the guide plate 103 is slidably disposed on the guide rail 104. The injection tailplate locking structure includes two sets of locking components, which are respectively matched with two support legs 102. Each set of locking components includes at least two locking parts 2. The locking member 2 includes a vertical connecting part 201 and a horizontal locking part 202. The vertical connecting part 201 is connected to the guide plate 103, and the horizontal locking part 202 is connected to the vertical connecting part 201 and extends upward to the corresponding support leg 102 to limit the support leg 102 in the vertical direction.

[0027] Specifically, the injection tail section 1 of the electric injection molding machine has an injection plate and a screw drive mechanism, etc. The guide plate 103 is slidably mounted on the guide rail 104. The guide rail 104 can be fixedly installed on the frame of the injection molding machine, so that the entire injection tail section 1 can move back and forth linearly along the guide rail 104 to realize the injection action.

[0028] The injection tail plate locking structure provided in this embodiment of the invention includes two sets of locking components, which respectively cooperate with two support legs 102. Specifically, the first set of locking components cooperates with the support leg 102 located on the left, and the second set of locking components cooperates with the support leg 102 located on the right. Each set of locking components includes at least two locking elements 2. The two locking elements 2 in the same set are arranged at intervals above the corresponding support leg 102 along the front-back direction (i.e., the injection direction) of the injection tail 1. By setting multiple locking elements 2 on the same support leg 102, vertical limiting of the support leg 102 can be provided simultaneously from multiple front and rear positions, ensuring uniform distribution of limiting force and avoiding stress concentration caused by excessive force on a single locking element 2. It is understood that, under the premise of meeting the limiting strength and stability, each set of locking components can also be set with no less than three locking elements 2 according to the actual working conditions to further improve the reliability and uniformity of limiting.

[0029] The locking member 2 can be L-shaped, including a vertical connecting part 201 and a horizontal locking part 202. The vertical connecting part 201 extends vertically, and its lower end is connected to the upper surface of the guide plate 103. The horizontal locking part 202 extends horizontally, and it is connected to the upper end or near the upper end of the vertical connecting part 201. The horizontal locking part 202 extends above the corresponding support leg 102, so that the projection of the support leg 102 in the vertical direction at least partially falls within the coverage area of ​​the horizontal locking part 202. In other words, the horizontal locking part 202 can be suspended above the support leg 102, so that a small gap is formed between the upper surface of the support leg 102 and the lower surface of the horizontal locking part 202 or they are in a close fit, thereby constituting a physical limit on the support leg 102 in the vertical direction. When an instantaneous upward impact force is generated during the injection process and the support leg 102 has an upward tendency, the upper surface of the support leg 102 immediately abuts against the lower surface of the transverse locking part 202. The transverse locking part 202 transmits the limiting reaction force to the guide plate 103 through the vertical connecting part 201, thereby preventing the support leg 102 from continuing to move upward and realizing the vertical displacement constraint of the injection tail 1.

[0030] This application uses the vertical connecting part 201 of the locking member 2 to fix the limiting structure to the guide plate 103, and at the same time uses the horizontal locking part 202 to form a vertical physical limit on the support leg 102, thereby effectively restricting the vertical movement freedom of the support leg 102 without affecting the normal sliding of the guide plate 103 along the guide rail 104.

[0031] The working principle of this application embodiment is as follows: When the injection plate moves at high speed in a straight line along the injection direction under the transmission of the front and rear lead screws, a momentary impact force that surges upward in the vertical direction is generated at the injection tail 1 due to factors such as the meshing clearance of the lead screw transmission pair, the guide rail fit clearance, and sudden changes in injection resistance. This impact force is transmitted to the support leg 102, causing the support leg 102 to tend to jump upward. At the same time, since the lateral locking part 202 is located directly above the support leg 102, the slight upward displacement of the support leg 102 is immediately blocked by the lower surface of the lateral locking part 202.

[0032] Therefore, through the ingenious arrangement of the L-shaped locking member 2, this application achieves reliable vertical positioning of the support leg 102 while maintaining the original sliding performance of the injection tail 1. This fundamentally solves the problem of accelerated wear of the guide rail and reduced product quality caused by instantaneous movement during injection. At the same time, the structure is simple, easy to process, and low in cost, making it suitable for large-scale application in the field of electric injection molding machines.

[0033] In a preferred embodiment, the lateral locking part 202 and the vertical connecting part 201 are preferably integrally molded to ensure that the locking part 2 has sufficient rigidity and bending strength to withstand the instantaneous impact force generated during the injection process without plastic deformation. Furthermore, a gap of 0.1~0.5mm can be maintained between the lower surface of the lateral locking part 202 (i.e., the side facing the upper surface of the support leg 102) and the upper surface of the support leg 102 in the initial installation state. This gap provides space for the normal sliding of the injection tail 1 and allows for rapid elimination of the gap and rigid contact when movement occurs, thus balancing smooth sliding and fast limiting response. Preferably, this gap can be set to 0.2mm according to actual working conditions.

[0034] like Figures 1 to 7 As shown, in some embodiments of the present invention, an adjustment mechanism 3 is also provided between the two legs 102; The adjustment mechanism 3 includes an intermediate gear 301, two racks 302, and an external drive mechanism; The intermediate gear 301 is rotatably mounted on the guide plate 103; Two racks 302 are arranged in parallel and opposite to each other, and mesh with the intermediate gear 301 respectively. The opposite ends of the two racks 302 (i.e. the left end of the rear rack 302 and the right end of the front rack 302) are respectively connected to the vertical connecting parts 201 in the two sets of locking assemblies. The external drive mechanism is connected to the intermediate gear 301 for driving the intermediate gear 301 to rotate, so as to drive the two sets of locking components to move closer or further apart through the two racks 302.

[0035] Specifically, the intermediate gear 301 can be mounted on the upper surface of the guide plate 103 via a gear shaft and bearing housing, and is located in the space between the two legs 102, so as to ensure that the intermediate gear 301 can rotate freely around its axis.

[0036] The external drive mechanism can take the form of a manual operating handle, a servo motor, or a stepper motor, and its output end is connected to the gear shaft of the intermediate gear 301 through a coupling or reducer. When the external drive mechanism drives the intermediate gear 301 to rotate, since the two racks 302 are respectively engaged on both sides (such as the front and rear sides) of the intermediate gear 301, the rotational motion of the intermediate gear 301 is converted into the synchronous reverse translational motion of the two racks 302. That is, the two racks 302 move closer or further away from each other, thereby driving the two sets of locking components to move closer or further away from each other, thereby adjusting the horizontal relative position between the transverse locking part 202 and the support leg 102 to adapt to support legs 102 of different widths or to adjust the position between the locking part 2 and the support leg 102.

[0037] In some embodiments of the present invention, the guide plate 103 is further provided with guide plates that respectively cooperate with the two racks 302, and the racks 302 are slidably cooperated with the corresponding guide plates.

[0038] Specifically, two guide plates are fixedly installed on the upper surface of the guide plate 103, respectively positioned on the sides of the two racks 302. The racks 302 are slidably fitted onto the corresponding guide plates. The guide plates provide guidance and support for the translational movement of the racks 302, ensuring that the racks 302 maintain linear motion under the drive of the intermediate gear 301, preventing the racks 302 from deviating or tilting, thereby ensuring the meshing accuracy and transmission smoothness between the racks 302 and the intermediate gear 301.

[0039] In some embodiments of the present invention, the guide plate is U-shaped, and the rack 302 is slidably disposed within the U-shaped opening of the guide plate.

[0040] Specifically, the U-shaped guide plate includes a middle plate and two side plates respectively connected to both sides of the middle plate. One side plate is fixed to the guide plate 103, and the middle plate is perpendicular to the guide plate 103. The two side plates are arranged opposite each other to form a U-shaped opening. The non-tooth side of the rack 302 (i.e., the side facing away from the intermediate gear 301) is accommodated in the U-shaped opening, while the tooth side of the rack 302 is exposed outside the U-shaped opening to mesh with the intermediate gear 301.

[0041] The two side walls of the U-shaped guide plate limit the rack 302 in the width and height directions, allowing the rack 302 to slide only along its length. This U-shaped structure design is not only simple in structure and easy to manufacture, but also provides three-sided constraint on the rack 302, effectively improving the straightness and stability of the rack 302's sliding trajectory.

[0042] like Figures 1 to 7 As shown, in some embodiments of the present invention, the vertical connecting part 201 is fixed to the guide plate 103 by bolt connection.

[0043] Specifically, the lower end of the vertical connecting part 201 may be provided with a mounting flange or mounting hole, and a threaded hole is provided on the guide plate 103 at the corresponding position. After the bolt passes through the mounting hole of the vertical connecting part 201, it is screwed into the threaded hole of the guide plate 103 to lock the vertical connecting part 201 onto the guide plate 103.

[0044] The bolted connection method not only provides high connection strength and good seismic performance, but also facilitates the installation, disassembly, and position adjustment of the locking component 2, which is beneficial for equipment assembly and maintenance. Understandably, in applications requiring frequent adjustments to the position of the locking component 2, shims or adjusting washers can be added between the vertical connection 201 and the guide plate 103 to fine-tune the installation height of the locking component 2.

[0045] like Figures 1 to 7 As shown, in some embodiments of the present invention, an elastic buffer assembly 4 is also provided on the side of the lateral locking part 202 near the support leg 102. The elastic buffer assembly 4 includes an intermediate buffer 401 and a first connecting plate 402 and a second connecting plate 403 respectively disposed on both sides of the intermediate buffer 401; The first connecting plate 402 is connected to the transverse locking part 202, and the second connecting plate 403 is used to abut against the support leg 102.

[0046] Specifically, the intermediate buffer 401 is sandwiched between the first connecting plate 402 and the second connecting plate 403. The first connecting plate 402 is fixedly connected to the transverse locking part 202, while the second connecting plate 403 is a free end facing the upper surface of the support leg 102. When an upward instantaneous impact force is generated during the injection process, the support leg 102 jumps upward and first contacts the second connecting plate 403. The impact force is transmitted to the intermediate buffer 401 through the second connecting plate 403. The intermediate buffer 401 undergoes elastic deformation to absorb the impact energy and then transmits the remaining force to the first connecting plate 402 and the transverse locking part 202. The setting of this elastic buffer component 4 transforms the rigid impact between the support leg 102 and the locking part 2 into elastic contact, effectively reducing the peak impact force. This not only reduces the wear on the upper surface of the support leg 102 and the lower surface of the transverse locking part 202 but also reduces impact noise, improving the operational stability and service life of the equipment.

[0047] like Figures 1 to 7 As shown, in some embodiments of the present invention, the elastic buffer component 4 is a spring or a rubber pad.

[0048] Specifically, when the elastic buffer component 4 uses a spring, the spring can be a helical compression spring or a disc spring, which is disposed between the first connecting plate 402 and the second connecting plate 403, relying on the compression deformation of the spring to absorb impact energy. When the elastic buffer component 4 uses a rubber pad, the rubber pad can be a block or sheet structure made of natural rubber, nitrile rubber, or polyurethane rubber, relying on the elastic deformation of the rubber material to absorb impact energy. Both springs and rubber pads are elastic elements widely used in industry, with the advantages of low cost, easy replacement, and stable and reliable buffering effect, which can meet the buffering needs under different working conditions. Preferably, in working conditions with large impact force or high impact frequency, a spring can be used as an intermediate buffer component 401; in working conditions with high noise control requirements, a rubber pad can be used as an intermediate buffer component 401.

[0049] like Figures 1 to 7 As shown, in some embodiments of the present invention, the elastic buffer assembly 4 further includes a sleeve structure disposed outside the intermediate buffer member 401, the sleeve structure including a first sleeve 404 and a second sleeve 405 slidably sleeved inside the first sleeve 404; The first sleeve 404 is connected to the first connecting plate 402, and the second sleeve 405 is connected to the second connecting plate 403.

[0050] Specifically, the first sleeve 404 is a cylindrical structure with one open end, and its closed end is fixedly connected to the first connecting plate 402; the second sleeve 405 is also a cylindrical structure, and its closed end is fixedly connected to the second connecting plate 403. The open end of the second sleeve 405 is inserted into the interior of the first sleeve 404 from the open end of the first sleeve 404, and can slide axially within the first sleeve 404. The intermediate buffer 401 is disposed within the internal space formed by the first sleeve 404 and the second sleeve 405. When the support leg 102 moves upward, the second connecting plate 403 drives the second sleeve 405 to slide along the inner wall of the first sleeve 404 towards the first connecting plate 402, compressing the intermediate buffer 401. At the same time, the inner wall of the first sleeve 404 guides and constrains the outer wall of the second sleeve 405, preventing the second connecting plate 403 from tilting or shifting laterally during compression.

[0051] This sleeve structure not only provides protection for the intermediate buffer 401 (preventing dust and oil from entering), but also ensures the consistency of the movement direction of the elastic buffer assembly 4 during compression and reset, avoiding the tilting and jamming phenomenon of the second connecting plate 403 due to uneven force, thus improving the working reliability and service life of the buffer assembly.

[0052] like Figures 1 to 7 As shown, in some embodiments of the present invention, the injection tailplate locking structure further includes a pressure sensor, which is disposed on the side of the lateral locking part 202 near the support leg 102, for detecting the pressure between the lateral locking part 202 and the support leg 102.

[0053] Specifically, the pressure sensor can be installed on the lower surface of the transverse locking part 202 or embedded inside the transverse locking part 202, with its sensing surface facing the upper surface of the support leg 102. The signal output terminal of the pressure sensor can be connected to the control system of the injection molding machine. During operation, the pressure sensor detects the contact pressure between the transverse locking part 202 and the support leg 102 in real time and feeds the detection signal back to the control system. When the detected pressure value exceeds the preset range, the control system can issue an alarm signal. The operator can fine-tune the position of the locking part 2 through the adjusting mechanism 3. Since the vertical connecting part 201 is fixed to the guide plate 103 by bolt connection, the position of the locking part 2 can also be fine-tuned by adjusting the tightness of the bolts to restore the normal locking pressure.

[0054] In detail, the installation of this pressure sensor enables the locking structure to have real-time monitoring and intelligent feedback functions. By continuously monitoring the pressure between the transverse locking part 202 and the support leg 102, abnormal changes in locking force caused by factors such as guide rail wear, loose locking parts, or thermal expansion can be detected in a timely manner. This provides data support for predictive maintenance and automatic compensation adjustment of the equipment, thereby further improving the intelligence level and operational safety of the equipment.

[0055] like Figures 8 to 9 As shown, in some embodiments of the present invention, the side of the lateral locking portion 202 near the support leg 102 (i.e., the lower surface of the lateral locking portion 202) has an inclined surface 203.

[0056] Specifically, the inclined surface 203 is disposed on the side of the lower surface of the transverse locking part 202 near the upper surface of the support leg 102. The inclined surface 203 can gradually tilt downward from the end of the transverse locking part 202 (the end away from the vertical connecting part 201) towards the direction of the vertical connecting part 201, that is, the inclined surface 203 forms a certain angle with the horizontal plane.

[0057] The inclined surface 203 is provided so that when the locking member 2 moves horizontally toward the support leg 102 under the drive of the adjustment mechanism 3, the inclined surface 203 can easily form a clearance area so that the lateral locking part 202 can be moved to the top of the support leg 102.

[0058] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A locking structure for an injection tail plate, disposed on the injection tail section (1) of an electric injection molding machine, wherein the injection tail section (1) includes a tail body (101), two opposing support legs (102), a guide plate (103), and a guide rail (104), wherein the tail body (101) is mounted on the guide plate (103) via the two support legs (102), and the guide plate (103) is slidably disposed on the guide rail (104), characterized in that, The injection tail plate locking structure includes two sets of locking components, which are respectively matched with two support legs (102). Each set of locking components includes at least two locking parts (2). The locking member (2) includes a vertical connecting part (201) and a horizontal locking part (202). The vertical connecting part (201) is connected to the guide plate (103), and the horizontal locking part (202) is connected to the vertical connecting part (201) and extends upward to the corresponding support leg (102) to limit the support leg (102) in the vertical direction.

2. The injection tailplate locking structure according to claim 1, characterized in that, An adjustment mechanism (3) is also provided between the two support legs (102); The adjustment mechanism (3) includes: An intermediate gear (301) is rotatably mounted on the guide plate (103); Two racks (302) are arranged in parallel and opposite directions and respectively mesh with the intermediate gear (301). The opposite ends of the two racks (302) are respectively connected to the vertical connecting parts (201) in the two sets of locking assemblies. An external drive mechanism is connected to the intermediate gear (301) for driving the intermediate gear (301) to rotate, so as to drive the two sets of locking components to move closer or further apart through the two racks (302).

3. The injection tailplate locking structure according to claim 2, characterized in that, The guide plate (103) is also provided with guide plates that correspond to and cooperate with the two racks (302), and the racks (302) are slidably engaged with the corresponding guide plates.

4. The injection tailplate locking structure according to claim 3, characterized in that, The guide plate is U-shaped, and the rack (302) is slidably disposed in the U-shaped opening of the guide plate.

5. The injection tailplate locking structure according to claim 1, characterized in that, The lateral locking part (202) has an inclined surface (203) on one side near the support leg (102).

6. The injection tailplate locking structure according to claim 1, characterized in that, The vertical connecting part (201) is fixed to the guide plate (103) by bolt connection.

7. The injection tailplate locking structure according to claim 6, characterized in that, An elastic buffer assembly (4) is also provided on the side of the lateral locking part (202) near the support leg (102). The elastic buffer assembly (4) includes an intermediate buffer (401) and a first connecting plate (402) and a second connecting plate (403) respectively disposed on both sides of the intermediate buffer (401). The first connecting plate (402) is connected to the transverse locking part (202), and the second connecting plate (403) is used to abut against the support leg (102).

8. The injection tailplate locking structure according to claim 7, characterized in that, The elastic buffer component (4) is a spring or a rubber pad.

9. The injection tailplate locking structure according to claim 7, characterized in that, The elastic buffer assembly (4) further includes a sleeve structure disposed outside the intermediate buffer (401), the sleeve structure including a first sleeve (404) and a second sleeve (405) slidably sleeved inside the first sleeve (404). The first sleeve (404) is connected to the first connecting plate (402), and the second sleeve (405) is connected to the second connecting plate (403).

10. The injection tailplate locking structure according to claim 1, characterized in that, It also includes a pressure sensor, which is located on the side of the lateral locking part (202) near the support leg (102) and is used to detect the pressure between the lateral locking part (202) and the support leg (102).

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