Stamp quick-changing structure of die-casting die

Abstract

The utility model discloses a seal quick-changing structure of a die-casting die, which comprises a base, a movable die plate arranged at the top of the base, a fixed die plate arranged at the top of the movable die plate, a connecting mechanism detachably connected to the inner bottom wall of the fixed die plate, a movable die core detachably connected to the inner part of the movable die plate, and a changing mechanism detachably connected to the inner part of the movable die plate. An ejector plate is fixedly connected to the inner bottom wall of the base. According to the utility model, the fixed mold core can be quickly and stably mounted and dismounted by the equipment through the arranged connecting mechanism, so that the seal can be quickly replaced; by means of the arranged replacement mechanism, the equipment can rapidly and conveniently replace the seal body, the whole die-casting die does not need to be disassembled, the operation difficulty and the time cost are reduced, and when the seal body is replaced, only the seal body needs to be screwed out of the mounting groove.

Description

Technical Field

[0001] This utility model relates to the field of die-casting mold technology, specifically to a quick-change stamp structure for die-casting molds. Background Technology

[0002] The lower mold part of the existing die casting mold includes a template, mold core, guide pillar, ejector plate, stamp and positioning pin. The guide pillar is fixedly connected to the template, the ejector plate is slidably connected to the guide pillar, the mold core is set in the mold core cavity of the template, and the mold core has a through hole that passes through the opposite sides of it. The positioning pin passes through the through hole from the second side and is threadedly connected to the stamp on the first side, so that the stamp is embedded on the first side. The stamp can be used to print the date or model information on the molded workpiece.

[0003] Patent CN217315807U discloses a quick-change stamp structure for a die-casting mold, including a mold core, a positioning pin, and a stamp. The mold core has a first through hole that passes between opposite first and second sides of the mold core. The positioning pin is located inside the first through hole. The stamp is fixedly connected to the first extension end of the positioning pin and located on the first side. A limiting part is provided inside the first through hole. The second extension end of the positioning pin has an elastic part that can move from a first position to a second position. When the elastic part is in the first position, the limiting part restricts the elastic part in a first direction, which is from the second side to the first side. When the elastic part is in the second position, the limiting part releases the restriction on the elastic part, and the positioning pin can move along the first direction, causing the stamp to protrude outward from the first side.

[0004] Currently, the traditional quick-change stamp structure of die-casting molds has limitations in actual use. Since the stamp needs to be changed frequently, the high temperature and pressure inside the die-casting mold cavity during die-casting often make it difficult to remove the stamp and replace it quickly, thus affecting production efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a quick-change stamp structure for die-casting molds, so as to solve the problem that in the actual use of the quick-change stamp structure for die-casting molds mentioned in the background art, the stamp needs to be changed frequently, but due to the high temperature of the die-casting mold and the high pressure in the cavity during die-casting, the stamp is often difficult to remove and cannot be changed quickly, thus affecting production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-change stamp structure for a die-casting mold, comprising a base, a movable template provided on the top of the base, a fixed template provided on the top of the movable template, a connecting mechanism detachably connected to the inner bottom wall of the fixed template, a movable mold core detachably connected to the inside of the movable template, a replacement mechanism detachably connected to the inner wall of the movable template, and an ejector plate fixedly connected to the inner bottom wall of the base;

[0007] The connecting mechanism includes a receiving groove, the outer wall of which is embedded and connected to the bottom inner wall of the fixed template. A fixed mold core is provided inside the receiving groove, and a cavity is provided at the bottom of the fixed mold core. Positioning grooves are embedded and connected to the top four corners of the fixed mold core. Connecting holes are provided through the four corners of the inner top wall of the receiving groove, and connecting parts are threaded to the inner wall of the connecting holes.

[0008] Preferably, the bottom of the moving template is detachably connected to the top of the base, and the bottom of the fixed template is bolted to the top of the moving template.

[0009] Preferably, the inner wall of the receiving groove is in close contact with the outer wall of the fixed mold core, and the bottom of the fixed mold core has a cavity.

[0010] Preferably, the number of connectors is four, and each connector passes through the connector hole and extends into the positioning grooves at the top four corners of the mold core.

[0011] Preferably, the replacement mechanism includes a through hole, the interior of the moving template has a through hole, the top of the inner wall of the through hole has a movable cavity in the radial direction, a push rod is slidably connected inside the through hole, a pin end is welded to the top of the push rod, a push plate is movably connected to the top of the pin end, a mounting part is fixedly connected to the top of the push plate, a mounting groove is opened inside the top of the mounting part, and a stamp body is threadedly connected inside the mounting groove.

[0012] Preferably, the inner wall of the through hole is inserted into the outer wall of the top rod.

[0013] Preferably, the bottom of the seal body passes through the top of the moving template and is threaded into the mounting groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, through its designed connecting mechanism, enables the equipment to quickly and securely install and disassemble the fixed mold core, thereby achieving rapid replacement of the stamp. In use, the fixed mold core is first placed into the receiving groove, and the positioning groove is aligned with the connecting hole. Then, the connecting piece passes through the connecting hole and is threaded into the positioning groove, thus securely installing the fixed mold core in the receiving groove. When the fixed mold core needs to be replaced, simply unscrew the connecting piece from the positioning groove to remove the fixed mold core from the receiving groove, thereby achieving rapid replacement of the fixed mold core and greatly improving production efficiency.

[0016] 2. This utility model, through its designed replacement mechanism, enables the equipment to quickly and conveniently replace the stamp body without disassembling the entire die-casting mold, reducing operational difficulty and time costs. When replacing the stamp body, simply unscrew it from the mounting slot and then thread the new stamp body into the mounting slot. Simultaneously, the design of components such as the push plate, mounting part, and movable cavity makes the stamp body more stable during installation and disassembly, preventing damage or safety accidents caused by improper operation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the connection mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the replacement mechanism of this utility model;

[0020] Figure 4 This is a side-view exploded view of the three-dimensional structure of this utility model.

[0021] In the diagram: 1. Base; 2. Moving mold plate; 3. Fixed mold plate; 4. Connecting mechanism; 5. Moving mold core; 6. Changing mechanism; 7. Ejector plate; 41. Receiving groove; 42. Fixed mold core; 43. Cavity; 44. Positioning groove; 45. Connecting hole; 46. Connecting piece; 61. Through hole; 62. Movable cavity; 63. Ejector rod; 64. Ejector pin end; 65. Push plate; 66. Mounting part; 67. Mounting groove; 68. Stamp body. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 and Figure 4 This utility model provides a technical solution: a quick-change structure for a die-casting mold stamp, including a base 1, a movable template 2 on the top of the base 1, a fixed template 3 on the top of the movable template 2, a connecting mechanism 4 detachably connected to the inner bottom wall of the fixed template 3, a movable mold core 5 detachably connected to the inside of the movable template 2, and a replacement mechanism 6 detachably connected to the inside of the movable template 2. The replacement mechanism 6 is used to realize the quick replacement of the stamp body 68, and an ejector plate 7 is fixedly connected to the inner bottom wall of the base 1.

[0024] The connecting mechanism 4 includes a receiving groove 41, the outer wall of which is embedded and connected to the bottom inner wall of the fixed template 3. A fixed mold core 42 is provided inside the receiving groove 41, and a cavity 43 is provided at the bottom of the fixed mold core 42. Positioning grooves 44 are embedded and connected to the four corners of the top of the fixed mold core 42. Connecting holes 45 are provided through the four corners of the inner top wall of the receiving groove 41, and connecting parts 46 are threaded onto the inner walls of the connecting holes 45. The bottom of the moving template 2 is detachably connected to the top of the base 1, and the bottom of the fixed template 3 is bolted to the top of the moving template 2.

[0025] Please see Figure 2 In order to quickly install or remove the fixed mold core 42 in the fixed template 3, the inner wall of the receiving groove 41 is in close contact with the outer wall of the fixed mold core 42, and a cavity 43 is opened at the bottom of the fixed mold core 42. The number of connecting pieces 46 is provided, and they all pass through the connecting hole 45 and extend into the positioning grooves 44 at the top four corners of the fixed mold core 42.

[0026] Furthermore, the inner wall of the receiving groove 41 is tightly fitted to the outer wall of the fixed mold core 42, ensuring the stability and precision of the mold during the die-casting process. The cavity 43 at the bottom of the fixed mold core 42 is used to form the die-cast part; its shape and size are determined according to specific product requirements. Positioning grooves 44 at the four corners of the top of the fixed mold core 42 cooperate with the connecting pieces 46 to achieve precise positioning and fixation of the fixed mold core 42 within the receiving groove 41. Four connecting pieces 46 are provided, each passing through the connecting hole 45 and inserted into the positioning grooves 44 at the four corners of the top of the fixed mold core 42. The fixed mold core 42 is securely fixed within the receiving groove 41 via threaded connections, ensuring that the mold will not loosen or deform under the high pressure and high temperature of die casting.

[0027] Please see Figure 3 In order to quickly fix the stamp body 68 onto the mounting part 66, the replacement mechanism 6 includes a through hole 61. The moving template 2 has a through hole 61 inside. The top of the inner wall of the through hole 61 is provided with a movable cavity 62 in the radial direction. A push rod 63 is slidably connected inside the through hole 61. A pin end 64 is welded to the top of the push rod 63. A push plate 65 is movably connected to the top of the pin end 64. The top of the push plate 65 is fixed to the mounting part 66. A mounting groove 67 is provided inside the top of the mounting part 66. The stamp body 68 is threadedly connected inside the mounting groove 67.

[0028] The inner wall of the through hole 61 is inserted into the outer wall of the ejector pin 63, and the bottom of the stamp body 68 penetrates the top of the moving mold core 2 and is threaded into the mounting groove 67. The push plate 65 is movably disposed within the movable cavity 62, and the mounting part 66 is disposed inside the through hole 61. The bottom of the ejector pin 63 can abut against the top of the ejector plate 7. The top of the through hole 61 penetrates the moving mold core 5, and the stamp body 68 is located on top of the moving mold core 5.

[0029] To facilitate the rapid installation and fixing of the stamp body 68, a movable cavity 62 is provided at the top of the inner wall of the through hole 61. The movable cavity 62 facilitates the movement of the push plate 65 within a certain range. The bottom of the stamp body 68 is designed to penetrate the top of the movable template 2 and be threaded into the mounting groove 67. This design not only ensures the stability of the stamp body 68 but also facilitates its rapid replacement and installation. To facilitate the disassembly and installation of the stamp body 68 on the mounting part 66, the outer wall of the bottom of the stamp body 68 is provided with external threads, and the inner wall of the mounting groove 67 is provided with internal threads that match the external threads.

[0030] In use, the operator simply screws the external thread at the bottom of the stamp body 68 into the internal thread of the mounting slot 67 to fix the stamp body 68 onto the mounting part 66. When the stamp body 68 needs to be replaced, the operator simply rotates the stamp body 68 in the opposite direction to unscrew it from the mounting slot 67, thus achieving quick replacement of the stamp body 68 and further improving replacement efficiency. In addition, in order to ensure that the push rod 63 can move stably up and down within the through hole 61, the outer wall of the push rod 63 is adapted to the inner wall of the through hole 61, and the setting of the ejector plate 7 can limit the push rod 63, so that the push rod 63 will not deviate during movement, thereby ensuring that the stamp body 68 can be stably fixed on the mounting part 66.

[0031] Meanwhile, to enable the push plate 65 to move the mounting part 66 up and down, the bottom of the push plate 65 is tightly attached to the top of the push rod 63. During use, when the push rod 63 moves upward, the push plate 65 moves upward simultaneously, thereby moving the mounting part 66 upward. After the stamp body 68 is replaced, the push plate 65 is pushed downward, causing the mounting part 66 and the push plate 65 to move downward. At this time, the push plate 65 pushes the push rod 63 downward, thus realizing the up and down movement of the stamp body 68. This facilitates the replacement and installation of the stamp body 68 on the mounting part 66, greatly saving labor efficiency. Furthermore, to ensure the stamp body 68 can better contact the workpiece and leave an imprint, the top of the stamp body 68 is provided with an engraving surface. The function of the engraving surface is to allow the stamp body 68 to better leave an imprint on the workpiece when in contact, thus ensuring the clarity of the imprint. Through the connection mechanism 4 and the replacement mechanism 6, the stamp body 68 can be quickly replaced, thereby improving replacement efficiency and ensuring production efficiency.

[0032] In use, the operator only needs to screw the external thread at the bottom of the stamp body 68 into the internal thread of the mounting groove 67 to fix the stamp body 68 on the mounting part 66. When the stamp body 68 needs to be replaced, the operator only needs to rotate the stamp body 68 in the opposite direction to unscrew the stamp body 68 from the mounting groove 67, thereby realizing the quick replacement of the stamp body 68 and further improving the replacement efficiency. The above is the working process of the entire device. All contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-change stamp structure for a die-casting mold, comprising a base (1), characterized in that: The base (1) is provided with a movable template (2) at the top, and a fixed template (3) is provided at the top of the movable template (2). The fixed template (3) is detachably connected to the inner bottom wall of the fixed template (3) and a connecting mechanism (4). The movable template (2) is detachably connected to the inside and a movable mold core (5). The movable template (2) is detachably connected to the inside and a replacement mechanism (6). The base (1) is fixedly connected to the inner bottom wall with an ejector plate (7). The connecting mechanism (4) includes a receiving groove (41), the outer wall of the receiving groove (41) is embedded and connected to the bottom inner wall of the fixed template (3), a fixed mold core (42) is provided inside the receiving groove (41), a cavity (43) is provided at the bottom of the fixed mold core (42), positioning grooves (44) are embedded and connected to the top four corners of the fixed mold core (42), and connecting holes (45) are provided through the four corners of the inner top wall of the receiving groove (41), and connecting parts (46) are threadedly connected to the inner wall of the connecting holes (45).

2. The quick-change stamp structure for a die-casting mold according to claim 1, characterized in that: The bottom of the moving template (2) is detachably connected to the top of the base (1), and the bottom of the fixed template (3) is bolted to the top of the moving template (2).

3. The quick-change stamp structure for a die-casting mold according to claim 1, characterized in that: The inner wall of the receiving groove (41) is in close contact with the outer wall of the fixed mold core (42), and the bottom of the fixed mold core (42) is provided with a cavity (43).

4. The quick-change stamp structure for a die-casting mold according to claim 3, characterized in that: The number of connectors (46) is four, all of which pass through the connector holes (45) and extend into the positioning grooves (44) at the top four corners of the fixed mold core (42).

5. The quick-change stamp structure for a die-casting mold according to claim 1, characterized in that: The replacement mechanism (6) includes a through hole (61). The moving template (2) has a through hole (61) inside. The top of the inner wall of the through hole (61) is provided with a movable cavity (62) in the radial direction. A push rod (63) is slidably connected inside the through hole (61). A pin end (64) is welded to the top of the push rod (63). A push plate (65) is movably connected to the top of the pin end (64). A mounting part (66) is fixedly connected to the top of the push plate (65). A mounting groove (67) is provided inside the top of the mounting part (66). A stamp body (68) is threadedly connected inside the mounting groove (67).

6. The quick-change stamp structure for a die-casting mold according to claim 5, characterized in that: The inner wall of the through hole (61) is inserted into the outer wall of the top rod (63).

7. The quick-change stamp structure for a die-casting mold according to claim 5, characterized in that: The bottom of the seal body (68) passes through the top of the moving template (2) and is inserted into the mounting groove (67) for internal thread connection.

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