A press-mould for a hose head fitting

Abstract

The utility model relates to the technical field of machining, disclose a kind of pressing die of hose head accessory, including pressing machine frame and the sliding slot frame being fixed in the inside of pressing machine frame, pressing machine frame top is equipped with hydraulic assembly push rod lower surface and upper die, and the sleeve of lower surface outer wall is equipped with along the sliding of pressing machine frame inner wall sliding rod, and pressing machine frame middle part is equipped with lower die ejector pin platform and connecting assembly, and the ejection column is fixed above ejector pin platform, and the pulley is connected below ejection column, and the sliding block of screw rod and the sliding block driven by screw rod are equipped in sliding slot frame, and the protruding block of fitting pulley is fixed above sliding block.The utility model provides rigid vertical direction for upper die lower pressure by sliding rod cooperation sleeve to prevent deflection scrapping, utilizes driving device to control screw rod driven sliding block and protruding block horizontal movement and pushes the pulley to rise conversion into vertical ejection force, and drives ejection column to rise steadily in lower die and pushes out accessory, and mechanical automatic demoulding replaces artificial prying and reduces mould damage risk.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a pressing mold for a hose head fitting. Background Technology

[0002] In the assembly and production of hose head fittings, molding equipment is used to subject the connector to heavy-duty extrusion and plastic deformation to achieve a tight connection between the connector and the hose body. Conventional molding equipment relies on top hydraulic transmission components to directly drive the upper mold to move downwards and close the mold. During the compression deformation stage, uneven force on the contact surface causes the upper mold to sway laterally. The structure supported by the central push rod lacks the rigid vertical trajectory constraint of the outer perimeter. The lack of a guide structure leads to a decrease in the alignment accuracy between the upper and lower molds, resulting in the processing parts being misaligned and scrapped during pressing. After pressing, the parts expand under pressure and fit tightly inside the forming cavity of the lower mold. The basic frame of the molding equipment does not integrate an automatic bottom ejection and demolding mechanism. Operators rely on hard metal tools to manually pry and peel off the parts. The repeated force and scraping of the tools damage the dimensional accuracy and surface finish of the lower mold. The lack of vertical guidance and anti-eccentric load function and the absence of an automatic non-destructive demolding structure result in a low yield rate in the assembly process and frequent maintenance and replacement of the mold basic components.

[0003] Therefore, this utility model proposes a pressing mold for hose head fittings to overcome the shortcomings of the prior art. Utility Model Content

[0004] In view of the problems in the existing technology of hose head fitting compression molds, such as the lack of external rigid vertical trajectory constraint when the hydraulic transmission component at the top of the molding equipment directly drives the pressing down, which easily leads to lateral sway and pressing misalignment and scrap, and the lack of an integrated bottom automatic ejection demolding mechanism inside the basic frame, which leads to the need to manually pry and peel off the fitting with hard metal tools, damaging the internal dimensional accuracy and surface finish of the mold, this utility model provides a hose head fitting compression mold with an improved structure to solve the above problems.

[0005] This utility model provides a pressing mold for a hose head accessory, including a pressing machine frame. A lower mold is fixedly connected to the middle of the pressing machine frame, and a hydraulic component is fixedly connected to the upper end of the pressing machine frame. A lower pressing surface is fixedly connected to the output end of the hydraulic component, and an upper mold is fixedly connected to the lower end of the lower pressing surface. A lead screw is rotatably connected inside the pressing machine frame, and a slider is threadedly connected to the outer side of the lead screw. A protrusion is fixedly connected to the upper end of the slider. An ejector platform is slidably connected to the middle of the pressing machine frame, and an ejector post is fixedly connected to the upper end of the ejector platform. A pulley is rotatably connected to the lower end of the ejector platform, and the outer side of the pulley abuts against the protrusion. The ejector post is slidably connected to the lower mold. The upper surface of the protrusion is provided with an undulating slope, and the outer side of the pulley fits against the undulating slope. An ejection channel is opened inside the lower mold, and the bottom end of the ejector post is fixedly connected to the upper end of the ejector platform by a threaded engagement. The ejector post is slidably connected to the interior of the ejection channel.

[0006] Preferably, a drive device is fixedly connected to the outside of the pressing machine frame, and the output end of the drive device is fixedly connected to the end of the lead screw.

[0007] Preferably, a push rod is fixedly connected between the hydraulic component and the lower pressing surface, a slide rod is fixedly connected to the inner wall of the pressing machine frame, a sleeve is fixedly connected to the outer side of the lower pressing surface, and the inner side of the sleeve is slidably connected to the outer side of the slide rod.

[0008] Preferably, a sliding groove frame is fixedly connected to the inner bottom end of the pressing machine frame, the outer side of the lead screw is rotatably connected to the inner side of the sliding groove frame, and the outer side of the slider is slidably connected to the inner side of the sliding groove frame.

[0009] Preferably, the lower end face of the upper mold has an upper pressing cavity, and the upper end face of the lower mold has a lower pressing cavity.

[0010] Preferably, a connecting component is provided between the ejector platform and the pulley, and the lower end of the ejector platform is fixedly connected to the connecting component, and the lower end of the connecting component is rotatably connected to the pulley.

[0011] Preferably, the connecting assembly includes a supporting plumb rod and a mounting U-shaped seat. The lower end of the ejector platform is fixedly connected to the supporting plumb rod, and the lower end of the supporting plumb rod is fixedly connected to the mounting U-shaped seat. The pulley is rotatably connected to the interior of the mounting U-shaped seat.

[0012] This utility model has the following beneficial effects: 1. This utility model uses a sleeve installed on the outer side of the lower pressing surface and a sliding rod installed vertically inside the frame of the pressing machine for sliding guidance. During the process of the hydraulic component pushing the push rod and the upper mold pressing the hose head accessory downward, the sliding rod provides rigid vertical movement trajectory constraint for the sleeve, restricting the lateral displacement of the upper mold when it is pressed down, ensuring that the upper mold and the lower mold maintain precise alignment and fit, and avoiding product scrap and mold damage caused by pressing position deviation.

[0013] 2. This utility model, by setting a lead screw and slider transmission mechanism controlled by a drive device at the bottom of the equipment, uses a protrusion fixedly connected to the upper end of the slider to move horizontally and push the pulley above. The undulating inclined surface of the protrusion converts the horizontal linear motion into a vertical mechanical thrust, which drives the ejector platform and ejector column to rise upward inside the lower mold, directly contacting and smoothly pushing out the hose head accessory that is tightly attached to the molding cavity. The mechanical automatic demolding replaces manual prying, reducing the risk of mold surface damage and improving part removal efficiency.

[0014] 3. This utility model separates the high-pressure pressing downward drive module and the high-precision ejection upward demolding module in upper and lower space. The top relies on hydraulic components to provide heavy-duty molding pressure and is maintained vertically by a slide rod. The bottom uses a screw and slider mechanism to provide stable ejection displacement and is limited by a slide frame. The two core transmission structures are independent of each other in physical space and mechanical transmission, which improves the smoothness of the overall mold system operation and the long-term stability of operation under complex molding actions. Attached Figure Description

[0015] Figure 1 This is a perspective view of a pressing mold for a hose head accessory proposed in this utility model; Figure 2 This is a front view of a pressing mold for a hose head fitting according to the present invention. Figure 3 This is a diagram illustrating a pressing mold for a hose head accessory according to this utility model. Figure 4 This is an exploded view of a compression mold for a hose head accessory proposed in this utility model; Figure 5 This is a schematic diagram of a pressing mold for a hose head accessory proposed in this utility model; Figure 6 This is a partial view of a pressing mold for a hose head accessory proposed in this utility model.

[0016] Legend: 1. Pressing machine frame; 2. Slide frame; 3. Lead screw; 4. Drive device; 5. Slider; 6. Protrusion; 7. Ejector platform; 8. Ejector column; 9. Connecting assembly; 10. Pulley; 11. Hydraulic assembly; 12. Push rod; 13. Lower pressing surface; 14. Upper mold; 15. Slide rod; 16. Sleeve. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] Example: Please refer to Figures 1 to 6 This utility model provides a pressing mold for hose head fittings, solving the structural defects of existing hose head fittings in the pressing process, such as product scrap due to pressing path misalignment and difficulty in demolding due to the workpiece being tightly attached to the inner wall of the lower mold after pressing. Please refer to... Figure 1 and Figure 2 The pressing mold for the hose head fitting includes a pressing machine frame 1 and a sliding groove frame 2 fixedly connected to the bottom of the inside of the pressing machine frame 1. The pressing machine frame 1 serves as the supporting base frame of the overall equipment, and the sliding groove frame 2 provides horizontal mounting and motion guidance space for the internal transmission components.

[0019] The lead screw 3, which is rotatably connected inside the slide frame 2, is used to transmit rotational power. The drive device 4, which is fixedly connected to the outer wall of the press frame 1 and whose output end is fixedly connected to the end of the lead screw 3, is used to provide the initial rotational driving force. The drive device 4 is specifically a servo motor. The slider 5, which is threadedly connected to the outer wall of the lead screw 3 and slidably connected inside the slide frame 2, is used to convert the rotational motion of the lead screw 3 into a linear displacement in the horizontal direction. The protrusion 6, which is fixedly connected to the upper end of the slider 5, is used to move horizontally synchronously with the slider 5.

[0020] The upper surface of the protrusion 6 is an undulating slope. The undulating slope is used to output the vertical height trajectory difference to the upper structure as it moves horizontally. The ejector platform 7, which is slidably connected to the middle of the press frame 1, is used to support and drive the upper part to perform vertical lifting and lowering movements. The ejector column 8, which is fixedly connected to the upper end of the ejector platform 7, is used to contact and push the workpiece away from the mold. The connecting component 9, which is fixedly connected to the lower end of the ejector platform 7, is used to connect the upper ejector platform 7 and the lower power receiving component. The pulley 10, which is rotatably connected to the center of the lower end of the connecting component 9 and abuts against the surface of the protrusion 6, is used to roll along the surface of the protrusion 6 to receive the vertical bumping thrust. The outer wall of the pulley 10 fits against the undulating slope to maintain the smoothness and continuity of power transmission.

[0021] A guide hole is provided in the middle of the press frame 1. The guide hole provides space for the connecting component 9 to pass through and guide vertical lifting. The connecting component 9 slides through the guide hole. The connecting component 9 connects the ejector platform 7 and the pulley 10 and transmits vertical thrust. The connecting component 9 includes a support rod and a mounting U-shaped seat fixedly connected to the lower end of the support rod. The upper end of the support rod is fixedly connected to the lower end of the ejector platform 7. The support rod serves as the main transmission rod for vertical power. The mounting U-shaped seat provides a wrap-around installation space. The pulley 10 is rotatably connected to the mounting U-shaped seat through a rotating shaft. The rotating shaft serves as the basic support point for the rotation of the pulley 10. The bottom end of the ejector column 8 is fixedly connected to the ejector platform 7 through a threaded connection. The threaded connection ensures that the ejector column 8 remains stable when subjected to vertical reaction force.

[0022] The lower mold, fixedly connected to the middle of the press machine frame 1 and located directly below the upper mold 14, is used to place the hose head fittings to be processed and to serve as a bottom force support. An ejection channel is provided inside the lower mold to accommodate the ejector column 8 and restrict its movement trajectory. The ejector column 8 slides through the ejection channel. The hydraulic assembly 11, fixedly connected to the upper end of the press machine frame 1, is used to output vertical downward pressing power. The push rod 12, fixedly connected to the output end of the hydraulic assembly 11, is used to transmit the hydraulic power downward. A connecting flange is fixedly connected to the end of the push rod 12 to expand the contact area and provide a fastening mounting position. The lower pressing surface 13, fixedly connected to the lower end of the push rod 12, serves as a base bearing plate for dispersing pressure. The upper end face of the lower pressing surface 13 is fixedly connected to the connecting flange by fastening bolts. The upper mold 14, fixedly connected to the lower end of the lower pressing surface 13, is used to close as the lower pressing surface 13 moves downward.

[0023] A slide rod 15, fixedly connected to the center of the front and rear of the inner wall of the press machine frame 1, is used to provide an absolutely vertical motion reference. The two ends of the slide rod 15 are fixedly connected to the press machine frame 1 through fixed flanges. A sleeve 16, fixedly connected to the outer wall of the lower pressing surface 13 and slidably connected to the outer wall of the slide rod 15, is used to cooperate with the slide rod 15 for constraint and guidance. A linear bearing is embedded inside the sleeve 16 and sleeved on the outer wall of the slide rod 15. The linear bearing is used to reduce the frictional resistance between the sleeve 16 and the slide rod 15 to ensure smooth downward pressing. The slide rod 15 cooperates with the sleeve 16 to limit the movement trajectory of the push rod 12 during the downward pressing process. The lower end face of the upper mold 14 has an upper pressing cavity, and the upper end face of the lower mold has a lower pressing cavity corresponding to the position of the upper pressing cavity. The upper pressing cavity and the lower pressing cavity are used to squeeze the hose head accessory to produce plastic deformation during mold closing to complete the pressing process.

[0024] In a preferred embodiment, the rotation of the lead screw 3 drives the slider 5, which is threaded to the outside, to move horizontally in a straight line inside the slide frame 2. The slide frame 2 is used to limit the horizontal movement trajectory of the slider 5.

[0025] In a preferred embodiment, the upper surface of the protrusion 6 is an undulating slope, and the outer wall of the pulley 10 is in contact with the undulating slope. The undulating slope is used to convert the horizontal displacement of the slider 5 into the vertical height change of the pulley 10. A guide hole is provided in the middle of the pressing machine frame 1, and the connecting component 9 is slidably inserted inside the guide hole. The guide hole is used to provide physical limit for the lifting and lowering action of the connecting component 9 to prevent vertical sway.

[0026] In a preferred embodiment, the end of the push rod 12 is fixedly connected to a connecting flange, and the upper end face of the lower pressing surface 13 is fixedly connected to the connecting flange by fastening bolts. The connecting flange is used to increase the force-bearing area at the end of the push rod 12, and the fastening bolts are used to provide a detachable rigid locking force. The two ends of the slide rod 15 are fixedly connected to the press machine frame 1 by fixing flanges. The fixing flanges are used to enhance the stability of the vertical installation of the slide rod 15 to resist the mechanical reaction force generated during the pressing operation.

[0027] In a preferred embodiment, the lower end face of the upper mold 14 is provided with an upper pressure forming cavity, and the upper end face of the lower mold is provided with a lower pressure forming cavity corresponding to the position of the upper pressure forming cavity. The upper pressure forming cavity and the lower pressure forming cavity are closed to form a processing pressure space for plastic deformation of the part. The lower mold is provided with an ejection channel, and the ejector pin 8 is slidably inserted inside the ejection channel. The ejection channel is used to provide vertical upward movement trajectory restriction for the ejector pin 8. The bottom end of the ejector pin 8 is fixedly connected to the ejector pin platform 7 by a threaded engagement. The threaded engagement is used to facilitate quick disassembly and replacement of the ejector pin 8 after long-term high-pressure contact damage.

[0028] Working principle: During the pressing operation, the hydraulic component 11 at the top of the pressing machine frame 1 is activated to output a downward thrust. The hydraulic component 11 pushes the push rod 12 downward. The push rod 12 drives the lower pressing surface 13 and the upper mold 14 to move downward as a whole through the connecting flange and fastening bolts. During the downward movement of the lower pressing surface 13, the outer sleeve 16 slides downward along the slide rod 15 fixed inside the pressing machine frame 1. The linear bearing inside the sleeve 16 reduces the sliding friction resistance to ensure smooth pressing. The slide rod 15 provides a rigid vertical guide limit for the sleeve 16 to prevent the push rod 12 from deviating from its trajectory when it moves downward under pressure. Under the guidance limit of the slide rod 15, the upper mold 14 moves straight downward and fits precisely with the lower mold. The upper pressing cavity on the lower end face of the upper mold 14 cooperates with the lower pressing cavity on the upper end face of the lower mold to squeeze the hose head fitting placed inside, causing plastic deformation and completing the pressing process. After the pressing process is completed, the hose head fitting is pressed and adhered to the inside of the lower mold. When demolding is required, the drive device 4 on the outside of the pressing machine frame 1 is activated to output rotational power. The drive device 4 drives the lead screw 3 to rotate inside the slide frame 2. The rotation of the lead screw 3 drives the slider 5, which is threaded to the outside, to move horizontally in a straight line inside the slide frame 2. The horizontal movement of the slider 5 synchronously drives the upper protrusion 6 to move horizontally. The undulating slope of the upper end face of the protrusion 6 changes the contact height during the horizontal displacement and pushes the pulley 10 that is attached to the outer wall upward. After being squeezed, the pulley 10 generates a vertical upward displacement and drives the connecting component 9 to slide upward in the guide hole in the middle of the pressing machine frame 1. The upward movement of the connecting component 9 pushes the ejector platform 7 to move vertically. The ejector platform 7 drives the upper ejector column 8 to move upward along the ejection channel inside the lower mold, contacting and pushing the hose head fitting inside to complete the separation and demolding operation.

Claims

1. A pressing mold for a hose head fitting, comprising a pressing machine frame (1), characterized in that, A lower mold is fixedly connected to the middle of the pressing machine frame (1), a hydraulic assembly (11) is fixedly connected to the upper end of the pressing machine frame (1), a lower pressing surface (13) is fixedly connected to the output end of the hydraulic assembly (11), an upper mold (14) is fixedly connected to the lower end of the lower pressing surface (13), a lead screw (3) is rotatably connected inside the pressing machine frame (1), a slider (5) is threadedly connected to the outer side of the lead screw (3), a protrusion (6) is fixedly connected to the upper end of the slider (5), and an ejector platform (7) is slidably connected to the middle of the pressing machine frame (1). The upper end of the ejector pin platform (7) is fixedly connected to an ejector pin (8), and the lower end of the ejector pin platform (7) is rotatably connected to a pulley (10). The outer side of the pulley (10) abuts against the protrusion (6). The ejector pin (8) is slidably connected to the lower mold. The upper surface of the protrusion (6) is provided with an undulating slope. The outer side of the pulley (10) fits against the undulating slope. An ejection channel is opened inside the lower mold. The bottom end of the ejector pin (8) is fixedly connected to the upper end of the ejector pin platform (7) by a threaded connection. The ejector pin (8) is slidably connected to the inside of the ejection channel.

2. The pressing mold for a hose head fitting according to claim 1, characterized in that, A drive device (4) is fixedly connected to the outside of the press frame (1), and the output end of the drive device (4) is fixedly connected to the end of the lead screw (3).

3. The pressing mold for a hose head fitting according to claim 1, characterized in that, A push rod (12) is fixedly connected between the hydraulic component (11) and the lower pressing surface (13). A slide rod (15) is fixedly connected to the inner wall of the pressing machine frame (1). A sleeve (16) is fixedly connected to the outer side of the lower pressing surface (13). The inner side of the sleeve (16) is slidably connected to the outer side of the slide rod (15).

4. The pressing mold for a hose head fitting according to claim 1, characterized in that, The inner bottom of the press frame (1) is fixedly connected to a sliding groove frame (2), the outer side of the screw (3) is rotatably connected to the inside of the sliding groove frame (2), and the outer side of the slider (5) is slidably connected to the inside of the sliding groove frame (2).

5. The pressing mold for a hose head fitting according to claim 4, characterized in that, The upper mold (14) has an upper pressing cavity on its lower end face, and the lower mold has a lower pressing cavity on its upper end face.

6. The pressing mold for a hose head fitting according to claim 1, characterized in that, A connecting component (9) is provided between the ejector platform (7) and the pulley (10). The lower end of the ejector platform (7) is fixedly connected to the connecting component (9), and the lower end of the connecting component (9) is rotatably connected to the pulley (10).

7. The pressing mold for a hose head fitting according to claim 6, characterized in that, The connecting assembly (9) includes a support plumb line and a mounting U-shaped seat. The lower end of the pin platform (7) is fixedly connected to the support plumb line, and the lower end of the support plumb line is fixedly connected to the mounting U-shaped seat. The pulley (10) is rotatably connected to the interior of the mounting U-shaped seat.

Images