Cup Circular Stamping Jig

Abstract

The present invention discloses a cup circumferential stamping jig, comprising an upper template, a lower template and an inner mold assembly arranged therebetween, the inner mold assembly comprising a mold core, a mold base, a rotating mechanism, and a clamping mechanism, the mold core is equipped with an insert compensation mechanism, the insert compensation mechanism comprises an insert, a push block and a top block which are slidably connected in sequence, the top surface of the mold core has a first opening, the front bottom of the mold core has a second opening, the top block is vertically elastically inserted into the second opening, a pressing block is fixedly arranged on the upper template, and a positioning block is fixedly arranged on the lower template, the pressing block is pressed downward so that the positioning block presses the top block into the mold core, and at the same time, the insert is ejected from the first opening through synchronous vertical movement, and abuts against the inner wall of the cup to be pressed, so that the bottom of the pressing block embosses a pattern on the cup body of the cup to be pressed. This solution adapts to cups to be pressed with different inner diameters and depths through the insert compensation mechanism to perform precise embossing.

Description

Technical Field

[0001] The invention relates to the technical field of thermos cup processing, and in particular to a cup circumference stamping jig. Background Art

[0002] Thermos cups usually use a highly sealed metal cup body for insulation. Conventional thermos cup bodies are cylindrical with the same diameter at the top and bottom. This is mainly because during the processing, a straight cylinder is more conducive to preparation. However, with the development and maturity of the thermos cup industry, conventional cylindrical thermos cups cannot meet people's needs. On the one hand, due to the disadvantages of cylindrical thermos cups themselves, cylindrical metal thermos cups are very slippery, resulting in unstable grip and easy to fall and cause damage; on the other hand, it cannot meet consumers' diverse and personalized needs for the shape and three-dimensional sense of the appearance of the thermos cup. Therefore, it is necessary to prepare a non-cylindrical thermos cup.

[0003] Some conventional non-circular thermos cups use knurling or embossing technology to process the cup body, such as those disclosed in announcement numbers CN219465306 U and CN 216802326 U. However, the knurling process uses a soft rubber wheel for rolling, and the three-dimensional appearance of the processed appearance is limited, and the rubber roller is extremely conspicuous, the preparation cost is high and the efficiency is limited. The embossing process is limited by the circumferential structure of the cup body. When the difference in the convexity of the pattern is greater than 0.3mm, it will easily get stuck on the inner mold, and the pattern with obvious convexity cannot be processed. On the other hand, for some cups with longer cup bodies, it is difficult to maintain consistent embossing depth, resulting in weak consistency in cup body processing. How to efficiently prepare a cup body with a three-dimensional sense is an urgent problem that needs to be solved. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a cup circumference punching jig.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A cup circumferential stamping jig comprises an upper template, a lower template and an inner mold assembly arranged therebetween, wherein the upper template can be lifted and slidably arranged above the lower template, the inner mold assembly comprises a mold core, a mold base, a rotating mechanism, and a clamping mechanism, the rod tail end of the mold core is fixedly connected to the front end surface of the mold base, and the mold core extends horizontally toward its front end for sleeve-mounting the cup to be pressed; the mold base is slidably arranged on the lower template through a sliding assembly, and the sliding assembly comprises a fixed seat, a first guide rod, a third spring, and a guide block, the fixed seat is fixedly arranged on the lower template, a group of the first guide rods are spaced apart in pairs and vertically fixedly arranged on the fixed seat, and each of the first guide rods is ... A third spring is sleeved on each guide rod, the mold base is sleeved on a group of the first guide rods, the two ends of the third spring are respectively in contact with the fixed base and the mold base, the two sides of the fixed base have grooves, the two guide blocks are fixedly arranged on the two sides of the mold base, and the guide blocks extend downward, and the bottom ends thereof have hooks, and the hooks are slidably arranged in the grooves; the clamping end of the clamping mechanism is arranged at the tail end of the mold core, and the cup mouth of the cup to be pressed is clamped by moving to fix the position of the cup to be pressed; the rotating end of the rotating mechanism is also arranged at the tail end of the mold core and is fixedly connected to the clamping end of the clamping mechanism to drive the cup to be pressed. The mold core is rotated; the rotating mechanism includes a dividing plate and a driving assembly that drives the dividing plate to rotate in a divided manner, the dividing plate is rotatably sleeved on the rod portion of the mold core through a bearing, the outer edge of the dividing plate is evenly distributed with teeth and grooves, the driving assembly includes a shell, an upper pressure piece, a driving spring block and a shifting block, the shell is fixedly arranged on the lower template, and through holes are arranged on the front and rear sides of the shell, the driving spring block is built into the shell, and its front and rear ends protrude from the through holes, its bottom surface abuts against a fifth spring, and its side portion is slidably connected to the tail end of the shifting block through a third inclined surface, the front end of the shifting block can extend from the shell, and the extension direction of the shifting block is the same as that of the The driving spring block is vertical and directly opposite to the tooth groove. The upper pressing piece drives the shifting block to expand and contract relative to the tooth groove by pressing down the driving spring block, so as to shift the indexing plate to perform indexing rotation. The clamping mechanism comprises a chuck and a stretching cylinder. The chuck comprises a plate body and a flap-type clamping claw. The plate body is elastically connected to the indexing plate. The flap-type clamping claw is the clamping end of the clamping mechanism. The indexing plate has an outwardly protruding shaft portion, and the outer diameter of the shaft portion gradually increases from front to back. The flap-type clamping claw is sleeved on the shaft portion. The stretching cylinder drives the chuck to move relative to the indexing plate to expand or reduce the outer diameter of the flap-type clamping claw to loosen or clamp the cup to be pressed.The head of the mold core is hollow and has an insert compensation mechanism built in, the insert compensation mechanism includes an insert, a push block and a top block that are slidably connected in sequence, the top surface of the mold core has a first opening for the insert to extend out, the front end bottom of the mold core has a second opening, the top block is vertically elastically inserted into the second opening, the top of the top block abuts against the inner wall of the mold core through a first spring, the push block is horizontally arranged, and its tail end abuts against the inner wall of the mold core through a second spring, the front end of the push block is slidably connected to the side of the top block through a first inclined surface, and the top of the push block is connected to the insert through a second inclined surface The top block is connected to the bottom of the mold by sliding, the vertical movement of the top block drives the push block to move horizontally synchronously through the first inclined surface, and the horizontal movement of the push block drives the insert to move vertically synchronously through the second inclined surface. The upper template is fixed with a pressing block facing the first opening, and the lower template is fixed with a positioning block facing the second opening. The pressing block is pressed downward so that the positioning block presses the top block into the mold core. At the same time, the insert is pushed out from the first opening through synchronous vertical movement and abuts against the inner wall of the cup to be pressed, so that the bottom of the pressing block presses a pattern on the cup body of the cup to be pressed. ;

[0007] Preferably, the shell includes a fixed shell and a movable shell, the fixed shell is fixed on the lower template, and the lower template is provided with a push rod which can move vertically relative to the fixed shell, the push rod passes through the fixed shell, and the top of the push rod is fixedly connected to the movable shell, and the driving spring block and the shift block are both built into the movable shell.

[0008] Preferably, the upper pressure piece includes a fixed pressure block, a movable pressure block, a tension spring, a limit block, and a limit strip. The top of the fixed pressure block is fixedly arranged on the upper template. The movable pressure block includes a rotating rod and two T-shaped blocks fixedly arranged at both ends of the rotating rod. The rotating rod can be pivotally inserted into the fixed pressure block. The two T-shaped blocks are symmetrically arranged at the front and rear sides of the fixed pressure block, so that the bottoms of the two T-shaped blocks are respectively opposite to the front and rear ends of the driving spring block. The first end of the head of one of the T-shaped blocks is connected to the fixed pressure block through the tension spring. The limiting block is fixedly arranged on the rear side of the fixed pressing block, and limits the rod portion of the T-block to remain in a vertical state in the initial state and the second state; the limiting bar is fixedly arranged on the rear side of the fixed shell, the top of which is higher than the limiting block, and the top of which is directly opposite to the second end of the head of the T-block, so that in the third state, the top of the limiting bar abuts against the second end of the head, so that the T-block is deflected as the fixed pressing block is pressed down, and the bottom of the T-block is separated from the front and rear ends of the driving spring block.

[0009] Preferably, a limit seat is fixedly provided on the lower template, and the limit seat has a bayonet, and the outer edge of the dividing plate is separated into a group of teeth by the tooth groove, and the bayonet matches the teeth and is engaged with the teeth during the downward pressing process of the dividing plate to limit the dividing plate.

[0010] Preferably, the dividing plate is evenly distributed with connecting holes along its edge, and each of the connecting holes is provided with a fourth spring and a connecting screw, the connecting screw passes through the connecting hole and is fixedly connected to the plate body, and both ends of the fourth spring abut between the connecting screw and the connecting hole, so that the plate body and the dividing plate are elastically connected, and the cylinder end of the stretching cylinder is fixedly connected with a connecting plate, and the front end of the connecting plate is fixedly provided with a group of connecting rods matching the connecting holes, the connecting rods are passed through the mold base and are driven by the stretching cylinder to retract and extend relative to the connecting hole, so as to drive the chuck to move relative to the dividing plate.

[0011] Preferably, two second guide columns are vertically fixed on the lower template, and the upper template is passed through the second guide columns and moves up and down along the second guide columns.

[0012] The beneficial effects of the present invention are mainly reflected in:

[0013] 1. An insert compensation mechanism is set in the mold core. The downward pressure of the pressing block drives the mold core to move downward to cooperate with the positioning block. The positioning block pushes the ejector block into the mold core to realize the ejection of the insert. On the other hand, it cooperates with the insert to emboss the cup to be pressed;

[0014] 2. The ejection structure of the insert can change the outer diameter of the mold core and the inner contour of the surface to be pressed, so that the mold core can adapt to cups to be pressed with different inner diameters and depths, thereby improving the adaptability between the mold core and the cups to be pressed. The insert plays a reliable supporting role for the cup body of the cup to be pressed, and is convenient to cooperate with the bottom of the pressing block to extrude a pattern with a depth greater than 0.3mm, thereby ensuring the concave-convex three-dimensional sense of the embossing. The outer wall of the insert defines the embossing area, and the cooperation between the insert and the pressing block defines a narrow embossing range, thereby avoiding the jamming of the pressing block in the indentation after embossing in a wider embossing area, thereby further improving the exquisiteness and smoothness of the embossing of the cup to be pressed.

[0015] 3. In this solution, the pressing of the pressing block, the rotation of the rotating mechanism, and the compensation of the insert compensation mechanism are all realized synchronously in a single pressing process of the upper template, which maximizes the optimization of the process flow and consistency, ensures the accurate embossing of the cups to be pressed, improves the yield rate, and makes it unnecessary to set up a power mechanism for the rotating mechanism, thereby reducing the cost;

[0016] 4. A clamping mechanism is provided to clamp the mouth of the cup to be pressed. The clamping plate is elastically connected to the indexing plate so that the cup to be pressed and the indexing plate are connected as one body to rotate synchronously, so that continuous embossing can be performed by rotating the cup to be pressed, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution of the present invention is further described below in conjunction with the accompanying drawings:

[0018] Figure 1 : A schematic diagram of an embodiment of the present invention;

[0019] Figure 2 : A side view of an embodiment of the present invention;

[0020] Figure 3 : Figure 2 Cross-sectional view of the direction;

[0021] Figure 4 : A cross-sectional view of the embodiment of the present invention in the main viewing direction;

[0022] Figure 5 : A rear view of an embodiment of the present invention;

[0023] Figure 6 : A schematic diagram of a driving component in an initial state according to an embodiment of the present invention;

[0024] Figure 7 : A schematic diagram of a driving component in a second state according to an embodiment of the present invention;

[0025] Figure 8 : Schematic diagram of the driving component in the third state according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0027] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0028] like Figures 1 to 8 As shown, the present invention discloses a circular stamping jig for cups, comprising an upper template 101, a lower template 102 and an inner mold assembly arranged therebetween, the upper template 101 being slidably arranged above the lower template 102 in a liftable manner, two second guide posts 110 being vertically fixed on the lower template 102, the upper template 101 being passed through the second guide posts 110 and moving up and down along the second guide posts 110.

[0029] The inner mold assembly includes a mold core 201, a mold base 202, a rotating mechanism, and a clamping mechanism. The mold base 202 is slidably arranged on the lower mold plate 102 through a sliding assembly. The tail end of the mold core 201 is fixedly arranged on the front end surface of the mold base 202 and horizontally extends toward its front end for sleeve-mounting the cup to be pressed. The clamping end of the clamping mechanism is arranged at the tail end of the mold core 201, and clamps the cup mouth of the cup to be pressed by moving to fix the position of the cup to be pressed. The rotating end of the rotating mechanism is also arranged at the tail end of the mold core 201 and is fixedly connected to the clamping end of the clamping mechanism to drive the cup to be pressed to rotate relative to the mold core 201. The mold core 201 is equipped with an insert compensation mechanism, which includes an insert 203, a push block 204 and a top block 205 that are slidably connected in sequence. The top surface of the mold core 201 There is a first opening 2011 for the insert 203 to extend out, and a second opening 2012 is provided at the bottom of the front end of the mold core 201. The top block 205 is vertically elastically inserted into the second opening 2012. The top block 205 drives the insert 203 to move vertically synchronously through the push block 204. A pressing block 104 facing the first opening 2011 is fixed on the upper template 101, and a positioning block 103 facing the second opening 2012 is fixed on the lower template 102. The pressing block 104 is pressed downward so that the positioning block 103 presses the top block 205 into the mold core 201. At the same time, the insert 203 is ejected from the first opening 2011 through synchronous vertical movement, and abuts against the inner wall of the cup to be pressed, so that the bottom of the pressing block 104 presses a pattern on the cup body to be pressed.

[0030] In this solution, an insert compensation mechanism is arranged in the mold core 201. The downward pressure of the pressing block 104 drives the mold core 201 to move downward to cooperate with the positioning block 103. The positioning block 103 pushes the ejecting block 205 into the mold core 201 to realize the ejection of the insert 203. On the other hand, it cooperates with the insert 203 to emboss the cup to be pressed to complete the embossing process.

[0031] The ejection structure of the insert 203 can change the outer diameter of the mold core 201 and the inner contour of the surface to be pressed, so that the mold core 201 can adapt to cups to be pressed with different inner diameters and depths, and different embossing requirements can be met by replacing inserts 203 with different outer walls, thereby achieving the purpose of improving the adaptability between the mold core 201 and the cup to be pressed. At the same time, the insert 203 plays a reliable supporting role for the cup body to be pressed, and is convenient to cooperate with the bottom of the pressing block 104 to extrude a pattern with a depth greater than 0.3mm, ensuring the embossing concave and convex three-dimensional sense, and the outer wall of the insert 203 defines the embossing area, and the cooperation between the insert 203 and the pressing block 104 defines a narrow embossing range, avoiding the jamming of the pressing block 104 in the indentation after the embossing is completed in the wider embossing area, further improving the exquisiteness and smoothness of the embossing of the cup to be pressed.

[0032] Specific as Figure 2 and Figure 3 As shown, the rod portion of the mold core 201 is fixedly connected to the mold base 202, and the sliding assembly includes a fixed base 105, a first guide rod 106, a third spring, and a guide block 108. The fixed base 105 is fixed on the lower mold plate 102, and a group of the first guide rods 106 are spaced apart and vertically fixed on the fixed base 105, and each of the first guide rods 106 is sleeved with a third spring. The mold base 202 is sleeved on a group of the first guide rods 106, and the two ends of the third spring are respectively in contact with the fixed base 105 and the mold base 202, so that the mold base 202 can move up and down relative to the fixed base 105, and the third spring prevents the mold base 202 and the fixed base 105 from having hard contact, and can help reset the mold base 202. Furthermore, the two sides of the fixed base 105 have grooves 109, and the two guide blocks 108 are fixedly arranged on the two sides of the mold base 202, and the guide blocks 108 extend downward, and the bottom ends thereof have hooks, and the hooks are slidably arranged in the grooves 109. The mold base 202 moves up and down along the fixed base 105 through the guide blocks 108 on both sides of the bottom thereof, so as to improve the smoothness of its movement.

[0033] Specifically, the head of the mold core 201 is hollow to accommodate the insert compensation mechanism, and the top of the top block 205 abuts against the inner wall of the mold core 201 through the first spring 206, so that when there is no external force, the top of the top block 205 extends out from the second opening 2012. The push block 204 is arranged horizontally, and its tail end abuts against the inner wall of the mold core 201 through the second spring 207. The elastic force of the second spring 207 allows the push block 204 to return to its original position without external force. The front end of the push block 204 is slidably connected to the side of the top block 205 through the first inclined surface 208, and the top of the push block 204 is slidably connected to the bottom of the insert 203 through the second inclined surface 209. The first inclined surface 208 and the second inclined surface 209 are set so that the vertical movement of the top block 205 drives the push block 204 to move horizontally synchronously through the first inclined surface 208, and the horizontal movement of the push block 204 drives the insert 203 to move vertically synchronously through the second inclined surface 209. The inclinations of the first inclined surface 208 and the second inclined surface 209 can be set according to the displacement distance required by the insert 203, the push block 204, and the top block 205.

[0034] In the preferred embodiment shown in the figure, the mold core 201 is segmented, including a solid rod and a hollow head. The outer diameter of the head is larger than the rod, and is used to fit the cup to be pressed. The insert 203 serves as compensation for the outer wall of the mold core 201. The insert 203 and the bottom of the pressing block 104 are adapted to form an embossing area between the two. Therefore, the mold core 201 can adapt to cups to be pressed with different inner diameters by adjusting the displacement height of the insert 203, and can also adapt to cups to be pressed with different inner contours by replacing inserts 203 with different outer walls to meet different embossing requirements. As shown in the embodiment shown in the figure, the head is a cone with an outer diameter that gradually decreases from the back to the front, and the outer wall of the insert 203 is a cone that matches the inner contour of the cup to be pressed.

[0035] like Figure 4-Figure 8As shown, the rotating mechanism includes a dividing plate 3 and a driving assembly for driving the dividing plate 3 to rotate in a dividing manner. The dividing plate 3 is rotatably mounted on the rod of the mold core 201 through a bearing 301. The outer edge of the dividing plate 3 is evenly distributed with tooth grooves 302, so that the dividing plate 3 forms a gear shape. The driving assembly includes a shell 303, an upper pressure piece, a driving spring block 304 and a shifting block 305. The shell 303 is fixed on the lower template 102. Through holes are provided on the front and rear sides of the shell 303. The driving spring block 304 is built in the shell 303, and its front and rear ends protrude from the through holes, its bottom surface is abutted against a fifth spring, and its side is slidably connected to the tail end of the shifting block 305 through a third inclined surface 307. The front end of the shifting block 305 can be extended from the shell 303. The extension direction of the shifting block 305 is perpendicular to the driving spring block 304 and is directly opposite to the tooth groove 302. The upper pressure piece drives the shifting block 305 to retract and retract relative to the tooth groove 302 by pressing down the driving spring block 304, so as to shift the dividing plate 3 for indexing rotation.

[0036] Specifically, the housing 303 includes a fixed housing 3031 and a movable housing 3032. The fixed housing 3031 is fixed on the lower template 102, and the lower template 102 is provided with a push rod 308 that can move vertically relative to the fixed housing 3031. The push rod 308 passes through the fixed housing 3031, and the top of the push rod 308 is fixedly connected to the movable housing 3032. The driving spring block 304 and the shift block 305 are both built into the movable housing 3032. Preferably, the bottom surface of the movable housing 3032 is formed by the top of the push rod 308, and the two together form a containing space for limiting the driving spring block 304 and the shift block 305. The movable housing 3032 is moved downward by the downward pressure of the upper pressing piece, and the bottom of the push rod 308 is arranged on the punch press, so that after the upper pressing piece is reset, the push rod 308 drives the movable housing 3032 to reset. The movable housing 3032 moves up and down relative to the fixed housing 3031 under the movement of the push rod 308 .

[0037] Furthermore, the upper pressure piece includes a fixed pressure block 309, a movable pressure block, a tension spring 310, a limit block 311, and a limit strip 312. The top of the fixed pressure block 309 is fixed on the upper template 101. The movable pressure block includes a rotating rod 313 and two T-blocks 314 fixed at both ends of the rotating rod 313. The rotating rod 313 can be pivotally inserted into the fixed pressure block 309. The two T-blocks 314 are symmetrically arranged at the front and rear sides of the fixed pressure block 309, so that the two T-blocks 314 can rotate synchronously, and the bottoms of the two T-blocks 314 are respectively opposite to the front and rear ends of the driving spring block 304. The first end 3141 of the head of one of the T-blocks 314 The limit block 311 is connected to the fixed pressure block 309 through the tension spring 310, and the limit block 311 is fixed on the rear side of the fixed pressure block 309, and limits the rod of the T-block 314 to remain in a vertical state in the initial state and the second state; the limit bar 312 is fixed on the rear side of the fixed shell 3031, and its top is higher than the limit block 311, and its top is directly opposite to the second end 3142 of the head of the T-block 314, so that in the third state, the top of the limit bar 312 abuts against the second end 3142 of the head, so that the T-block 314 is deflected as the fixed pressure block 309 is pressed down, and the bottom of the T-block 314 is separated from the front and rear ends of the driving spring block 304.

[0038] In this solution, the pressing of the pressing block 104, the pressing of the upper pressing piece in the rotating mechanism, and the compensation of the insert compensation mechanism are all realized synchronously in a single pressing process of the upper template 101, which maximizes the optimization of the process flow and consistency, ensures accurate embossing of the cups to be pressed, improves the yield rate, and makes it unnecessary to set up a power mechanism for the rotating mechanism, thereby reducing costs.

[0039] Specific as Figure 6 The figure shows the initial state of the rotating mechanism, at which time the upper template 101 is not pressed down, the rod of the T-block 314 abuts against the limit block 311, so that the rod of the T-block 314 is in a vertical state, and at this time the bottoms of the two T-blocks 314 are respectively opposite to the front and rear ends of the driving spring block 304, and the driving spring block 304 is located at the top of the movable shell 3032 under the elastic force of the fifth spring 319, and drives the shift block 305 to extend to fit into the tooth groove 302 to limit the dividing plate 3.

[0040] like Figure 7As shown, it is the second state of the rotating mechanism, at this time, the upper template 101 drives the fixed pressure block 309 to be pressed down synchronously, and the rod of the T-block 314 is still in a vertical state. The bottom of the T-block 314 presses the driving spring block 304 down to the bottom of the movable shell 3032. At this time, the shift block 305 retracts into the movable shell 3032, canceling the limit on the dividing plate 3.

[0041] At the same time, during the downward pressing process when the rotating mechanism switches from the initial state to the second state, the pressing block 104 is also pressed downward synchronously with the upper mold plate 101, and the mold core 201 is pressed downward by the pressing block 104, so that the bottom of the top block 205 abuts against the positioning block 103, and is gradually pushed into the mold core 201 by the positioning block 103. At this time, the insert 203 is synchronously moved up to abut against the inner wall of the cup to be pressed, completing the compensation of the mold core 201, and the bottom of the pressing block 104 also abuts against the outer wall of the cup to be pressed.

[0042] like Figure 8 As shown, it is the third state of the rotating mechanism, at this time, the upper template 101 drives the fixed pressure block 309 to continue to press down synchronously, so that the movable shell 3032 is tightly attached to the fixed shell 3031, and at the same time, the second end 3142 of the head of the T-block 314 abuts against the top of the limiting strip 312, so that the T-block 314 is deflected, and then the bottom of the T-block 314 is separated from the driving spring block 304, and the driving spring block 304 is reset under the elastic force of the fifth spring 319 and pushes out the shift block 305, and is inserted into the tooth groove 302 at the low position again.

[0043] Meanwhile, during the downward pressing process when the rotating mechanism switches from the second state to the third state, the pressing block 104 also continues to be pressed downward along with the upper template 101 to complete the embossing process on the cup to be pressed.

[0044] Then the upper template 101 moves upward and resets back to the initial state, and the rotating mechanism also switches synchronously from the third state to the initial state. During this upward and reset process, the shifting block 305 remains in the extended state, so that the dividing plate 3 is synchronously shifted to rotate.

[0045] In order to maintain the position of the indexing plate 3 in the second state and the third state, and to ensure the matching accuracy between the shift block 305 and the indexing plate 3, a limit seat 317 is fixedly arranged on the lower template 102, and the limit seat 317 has a bayonet 318. The outer edge of the indexing plate 3 is separated by the tooth groove 302 to form a group of teeth 306. The bayonet 318 matches the teeth 306 and is engaged with the teeth 306 during the pressing process of the indexing plate 3 to limit the indexing plate 3.

[0046] Furthermore, the clamping mechanism includes a chuck 4 and a stretching cylinder 401, the chuck 4 includes a disc body 402 and a flap-type clamping jaw 403, the disc body 402 is elastically connected to the indexing plate 3, the flap-type clamping jaw 403 is the clamping end of the clamping mechanism, the indexing plate 3 has an outwardly protruding shaft portion 316, and the outer diameter of the shaft portion 316 gradually increases from front to back, the flap-type clamping jaw 403 is sleeved on the shaft portion 316, and the stretching cylinder 401 drives the chuck 4 to move relative to the indexing plate 3 to expand or reduce the outer diameter of the flap-type clamping jaw 403 to loosen or clamp the cup to be pressed.

[0047] Specific as Figure 3 As shown, the indexing plate 3 is evenly distributed with connection holes 315 along its edge, and each of the connection holes 315 is provided with a fourth spring 404 and a connection screw 405, the connection screw 405 passes through the connection hole 315 and is fixedly connected to the plate body 402, the head of the connection screw 405 is located in the connection hole 315, and the two ends of the fourth spring 404 abut between the connection screw 405 and the connection hole 315, so that the plate body 402 is elastically connected to the indexing plate 3. The cylinder end of the stretching cylinder 401 is fixedly connected with a connection plate 406, and the front end of the connection plate 406 is fixedly provided with a group of connection rods 407 matching the connection holes 315, and the connection rods 407 are penetrated in the mold base 202 and driven by the stretching cylinder 401 to extend and retract relative to the connection hole 315, so as to drive the chuck 4 to move relative to the indexing plate 3.

[0048] The working principle of the clamping mechanism is as follows: in the initial state, the stretching cylinder 401 drives the connecting rod 407 to move forward, and the front end of the connecting rod 407 pushes the connecting screw 405 forward to make the clamping plate 4 away from the indexing plate 3. At this time, the outer diameter of the flap-type clamping jaw 403 is the smallest, and there is no clamping effect on the cup mouth of the cup to be pressed, which is convenient for the cup mouth of the cup to be pressed to be sleeved on the outside of the flap-type clamping jaw 403; in the clamping state, the stretching cylinder 401 drives the connecting rod 407 to move forward, and the front end of the connecting rod 407 pushes the connecting screw 405 forward to make the clamping plate 4 away from the indexing plate 3. 07 moves backward, the connecting rod 407 retracts into the mold base 202 to separate from the connecting screw 405, and the connecting screw 405 moves backward under the elastic force of the fourth spring 404, so that the chuck 4 moves backward close to the dividing plate 3. At this time, the flap-type clamping jaws 403 are opened by the shaft 316 of the dividing plate 3, and the outer diameter of the flap-type clamping jaws 403 reaches the maximum, so as to fit tightly with the inner wall of the cup to be pressed which is sleeved outside thereof, thereby fixing the cup to be pressed.

[0049] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0050] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. Cup circumferential stamping jig, characterized by: The invention comprises an upper mold plate (101), a lower mold plate (102) and an inner mold assembly arranged between the upper mold plate (101), the upper mold plate (101) being slidably arranged above the lower mold plate (102) in a manner that allows the upper mold plate (101) to be lifted and lowered; the inner mold assembly comprises a mold core (201), a mold base (202), a rotating mechanism and a clamping mechanism; the rear end of the rod of the mold core (201) is fixedly connected to the front end surface of the mold base (202); the mold core (201) extends horizontally toward its front end and is used to cover the cup to be pressed; the mold base (202) is slidably arranged on the lower mold plate (102) via a sliding assembly; the sliding assembly comprises a fixed seat (105), a first guide rod (106), a third spring and a guide block (108); the fixed seat ( 105) is fixed on the lower template (102), a group of the first guide rods (106) are spaced apart and vertically fixed on the fixed seat (105), each of the first guide rods (106) is sleeved with a third spring, the mold base (202) is sleeved on a group of the first guide rods (106), two ends of the third spring are respectively in contact with the fixed seat (105) and the mold base (202), two sides of the fixed seat (105) have grooves (109), two guide blocks (108) are fixed on two sides of the mold base (202), and the guide blocks (108) extend downward, and the bottom ends thereof have hooks, and the hooks are slidably arranged in the grooves (109); The clamping end of the clamping mechanism is arranged at the rear end of the mold core (201), and clamps the mouth of the cup to be pressed by moving, so as to fix the position of the cup to be pressed; the rotating end of the rotating mechanism is also arranged at the rear end of the mold core (201) and is fixedly connected to the clamping end of the clamping mechanism, so as to drive the cup to be pressed to rotate relative to the mold core (201); The rotating mechanism comprises a dividing plate (3) and a driving assembly for driving the dividing plate (3) to rotate in a dividing manner. The dividing plate (3) is rotatably sleeved on a rod portion of the mold core (201) via a bearing (301). The outer edge of the dividing plate (3) is evenly distributed with tooth grooves (302). The driving assembly comprises a shell (303), an upper pressing piece, a driving spring block (304) and a shifting block (305). The shell (303) is fixedly mounted on the lower mold plate (102). Through holes are provided on the front and rear sides of the shell (303). The driving spring block (304) is built into the shell (303). 03), and its front and rear ends protrude from the through hole, its bottom surface abuts against a fifth spring (319), and its side portion is slidably connected to the tail end of the shift block (305) through a third inclined surface (307), the front end of the shift block (305) can extend from the housing (303), the extension direction of the shift block (305) is perpendicular to the driving spring block (304), and is directly opposite to the tooth groove (302), and the upper pressing member drives the shift block (305) to extend and retract relative to the tooth groove (302) by pressing down the driving spring block (304), so as to shift the indexing plate (3) to perform indexing rotation; The clamping mechanism comprises a chuck (4) and a stretching cylinder (401); the chuck (4) comprises a disc body (402) and a flap-type clamping jaw (403); the disc body (402) is elastically connected to the indexing disc (3); the flap-type clamping jaw (403) is a clamping end of the clamping mechanism; the indexing disc (3) has an outwardly protruding shaft portion (316); and the outer diameter of the shaft portion (316) gradually increases from front to back; the flap-type clamping jaw (403) is sleeved on the shaft portion (316); and the stretching cylinder (401) drives the chuck (4) to move relative to the indexing disc (3) to expand or reduce the outer diameter of the flap-type clamping jaw (403) so as to loosen or clamp the cup to be pressed; The head of the mold core (201) is hollow and has an insert compensation mechanism built therein, the insert compensation mechanism comprising an insert (203), a push block (204) and a top block (205) which are slidably connected in sequence, the top surface of the mold core (201) has a first opening (2011) from which the insert (203) can be extended, the front end bottom of the mold core (201) has a second opening (2012), the top block (205) is vertically elastically inserted into the second opening (2012), the top of the top block (205) is in contact with the inner wall of the mold core (201) via a first spring (206), the push block (204) The push block (204) is arranged horizontally, and its tail end is in contact with the inner wall of the mold core (201) through a second spring (207); the front end of the push block (204) is slidably connected to the side of the top block (205) through a first inclined surface (208); the top of the push block (204) is slidably connected to the bottom of the insert (203) through a second inclined surface (209); the vertical movement of the top block (205) drives the push block (204) to move horizontally synchronously through the first inclined surface (208); the horizontal movement of the push block (204) drives the insert (203) to move vertically synchronously through the second inclined surface (209); A pressing block (104) facing the first opening (2011) is fixedly disposed on the upper mold plate (101), and a positioning block (103) facing the second opening (2012) is fixedly disposed on the lower mold plate (102); the pressing block (104) is pressed downward so that the positioning block (103) presses the ejector block (205) into the mold core (201); and at the same time, the ejector block (203) is ejected from the first opening (2011) through synchronous vertical movement and abuts against the inner wall of the cup to be pressed, so that the bottom of the pressing block (104) presses a pattern on the cup body of the cup to be pressed.

2. The cup circumference punching jig according to claim 1, characterized in that: The shell (303) comprises a fixed shell (3031) and a movable shell (3032); the fixed shell (3031) is fixedly mounted on the lower template (102); and the lower template (102) is provided with a push rod (308) which can move vertically relative to the fixed shell (3031); the push rod (308) passes through the fixed shell (3031); and the top of the push rod (308) is fixedly connected to the movable shell (3032); and the driving spring block (304) and the shifting block (305) are both built into the movable shell (3032).

3. The cup circumference punching jig according to claim 2, characterized in that: The upper pressing member comprises a fixed pressing block (309), a movable pressing block, a tension spring (310), a limit block (311), and a limit strip (312). The top of the fixed pressing block (309) is fixedly mounted on the upper template (101). The movable pressing block comprises a rotating rod (313) and two T-shaped blocks (314) fixedly mounted at both ends of the rotating rod (313). The rotating rod (313) is pivotally mounted in the fixed pressing block (309). The two T-shaped blocks (314) are symmetrically arranged at the front and rear sides of the fixed pressing block (309), respectively, so that the bottoms of the two T-shaped blocks (314) are respectively opposite to the front and rear ends of the driving spring block (304). The first end (3141) of the head of one of the T-shaped blocks (314) passes through the tension spring (310). The limiting block (311) is connected to the fixed pressure block (309), and is fixedly arranged on the rear side of the fixed pressure block (309), and limits the rod portion of the T-shaped block (314) to remain in a vertical state in the initial state and the second state; the limiting bar (312) is fixedly arranged on the rear side of the fixed shell (3031), and its top is higher than the limiting block (311), and its top is directly opposite to the second end (3142) of the head of the T-shaped block (314), so that in the third state, the top of the limiting bar (312) abuts against the second end (3142) of the head, so that the T-shaped block (314) deflects as the fixed pressure block (309) is pressed downward, and the bottom of the T-shaped block (314) is separated from the front and rear ends of the driving spring block (304).

4. The cup circumference punching jig according to claim 3, characterized in that: A limiting seat (317) is fixedly provided on the lower template (102), and the limiting seat (317) has a snap-fit ​​(318). The outer edge of the indexing plate (3) is separated by the tooth groove (302) to form a group of teeth (306). The snap-fit ​​(318) matches the teeth (306) and is snap-fitted with the teeth (306) during the downward pressing process of the indexing plate (3) to limit the indexing plate (3).

5. The cup circumference punching jig according to claim 4, characterized in that: The indexing plate (3) is evenly distributed with connecting holes (315) along its edge, and each connecting hole (315) is provided with a fourth spring (404) and a connecting screw (405), the connecting screw (405) passes through the connecting hole (315) and is fixedly connected to the plate body (402), and the two ends of the fourth spring (404) abut between the connecting screw (405) and the connecting hole (315), so that the plate body (402) and the indexing plate (3) are elastically connected, and the cylinder end of the stretching cylinder (401) is fixedly connected with a connecting plate (406), and the front end of the connecting plate (406) is fixedly provided with a group of connecting rods (407) matching the connecting holes (315), and the connecting rods (407) are passed through the mold base (202) and are driven by the stretching cylinder (401) to extend and retract relative to the connecting hole (315), so as to drive the chuck (4) to move relative to the indexing plate (3).

6. The cup circumference stamping jig according to claim 5, characterized in that: Two second guide columns (110) are vertically fixed on the lower template (102), and the upper template (101) is passed through the second guide columns (110) and moves up and down along the second guide columns (110).

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