Forming mold for easy-open lid production

Abstract

The utility model discloses a forming die for easy-to-pull lid production, and relates to the technical field of easy-to-pull lids. The forming mold for easy-open lid production comprises a clamping device, a mold structure and an ejection structure are arranged at the top end of the clamping device, the ejection structure is located on the inner side of the mold structure, the mold structure comprises a lower mold base and a driving frame, and the lower mold base and the driving frame are both fixedly installed on the top of a containing table top. The interior of the driving frame is slidably connected with an upper die base through an electric push rod. According to the forming mold for easy-open lid production, the clamping device is arranged, a driving motor is used for promoting a displacement plate to drive a clamping side plate to automatically clamp an easy-open lid plate through a driving screw rod and a follow-up screw rod, and the whole process adopts mechanical operation, so that the process of manual positioning is avoided, the positioning mode is time-saving and labor-saving, and the production efficiency is improved. And the situation that the easy-to-pull cover plate is easy to deviate due to manual positioning is avoided, so that the positioning stability of the easy-to-pull cover plate is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of easy-open lids, in particular to a forming mould for producing easy-open lids. Background Art

[0002] Easy-open lids, also known as easy-open lids, are used for canned food sealing and opening. They are defined as lids that are pre-engraved with a certain depth of score lines and riveted with pull rings, and can be safely torn open along the score lines when opened. They are metal packaging products. They are mostly made of aluminum or tinplate, and come in a variety of sizes, suitable for iron cans, aluminum cans, composite cans, PET plastic cans, and paper cans.

[0003] The main forming process of the easy-open cover is to press the easy-open cover sheet into shape through a mold, completing the processes of forming, extrusion sealing and stamping of the easy-open cover, and finally making the finished product after steps such as packaging, sterilization and boxing.

[0004] After searching, it is found that in the aluminum reverse safety edge full-open easy-open lid production forming die with patent publication number CN218503081U, "the lower die and the punch cooperate with each other to punch the raw material into the easy-open lid basic lid, and the groove of the reverse safety edge can be punched out while punching the basic lid, thereby reducing costs and improving work efficiency. At the same time, the raw material can be limited to improve the punching accuracy."

[0005] However, the above scheme still has certain shortcomings in actual use. In this scheme, a centering adjustment component is used to assist in positioning the easy-pull cover sheet, but the drive of the centering adjustment component is still manually operated, and the manually rotated adjustment screw is not provided with a limit structure, which causes the adjustment screw to easily rotate by itself after the rotation is completed, thereby causing the easy-pull cover sheet to become cheap, thereby affecting the positioning stability of the easy-pull cover sheet. Utility Model Content

[0006] The utility model provides a forming die for producing an easy-open lid, so as to solve the problems in the background technology.

[0007] To achieve the above object, the utility model provides the following technical solution: a forming mold for producing an easy-open lid, comprising a clamping device, wherein a mold structure and an ejection structure are arranged at the top of the clamping device, and the ejection structure is located on the inner side of the mold structure;

[0008] The clamping device comprises a processing machine, a placing table is fixedly installed on the top of the processing machine, a follower screw and a driving screw are rotatably connected in the inner cavity of the processing machine through a driving motor and a transmission chain, two displacement plates are arranged between the follower screw and the driving screw, and a clamping side plate is arranged on the top of the displacement plate;

[0009] The mold structure includes a lower mold base and a driving frame, both of which are fixedly installed on the top of the placement table. The interior of the driving frame is slidably connected to an upper mold base via an electric push rod, and a punch is arranged at the bottom end of the upper mold base.

[0010] Furthermore, the surfaces of the follower screw and the active screw are respectively provided with two sections of thread grooves in opposite directions, and two thread blocks are fixedly installed on the bottom of the displacement plate. The two thread blocks at the bottom of the same displacement plate are respectively threadedly connected to the thread grooves in the same direction of the follower screw and the active screw, and the movement directions of the two displacement plates are relative.

[0011] Furthermore, a receiving tube is fixedly mounted on the top of the displacement plate, and the inner wall of the receiving tube is slidably connected to the bottom end of the clamping side plate via a damping spring.

[0012] Furthermore, a slide groove is provided inside the placement table, and the clamping side plate passes through the slide groove and extends to the top of the placement table.

[0013] Furthermore, the ejection structure includes an articulated seat, the bottom end of which is fixedly connected to the top of the placement table, the interior of the articulated seat is rotatably connected to a hydraulic cylinder, and the movable end of the hydraulic cylinder is fixedly installed with an ejection inclined block.

[0014] Compared with the prior art, the utility model provides a forming mold for producing an easy-open lid, which has the following beneficial effects:

[0015] The forming die for producing the easy-open lid is provided with a clamping device, and a driving motor is used to drive a displacement plate to drive a clamping side plate to automatically clamp the easy-open lid sheet through an active screw and a follower screw, and the entire process is mechanized, thereby avoiding the need for manual positioning, making the positioning method time-saving and labor-saving, and avoiding the easy-open lid sheet being easily offset due to manual positioning, thereby ensuring the positioning stability of the easy-open lid sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the clamping device of the utility model;

[0018] Figure 3 This is a schematic diagram of the mold structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the ejection structure of the utility model.

[0020] In the figure: 1. Clamping device; 101. Processing machine; 102. Placement table; 103. Driving motor; 104. Follow-up screw; 105. Active screw; 106. Displacement plate; 107. Thread block; 108. Storage tube; 109. Clamping side plate; 2. Mold structure; 201. Lower mold base; 202. Driving frame; 203. Electric push rod; 204. Upper mold base; 205. Punch; 3. Ejection structure; 301. Articulated seat; 302. Hydraulic cylinder; 303. Ejection inclined block; 4. Control panel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model discloses a molding die for producing an easy-open lid, comprising a clamping device 1, a top end of which is provided with a mold structure 2 and an ejection structure 3, and the ejection structure 3 is located on the inner side of the mold structure 2.

[0023] The clamping device 1 includes a processing machine 101, and a placement table 102 is fixedly installed on the top of the processing machine 101. The inner cavity of the processing machine 101 is rotatably connected with a follower screw 104 and a driving screw 105 through a driving motor 103 and a transmission chain. Two displacement plates 106 are arranged between the follower screw 104 and the driving screw 105. A clamping side plate 109 is arranged on the top of the displacement plate 106. A slide groove is opened inside the placement table 102, and the clamping side plate 109 passes through the slide groove and extends to the top of the placement table 102.

[0024] By setting up the clamping device 1, the driving motor 103 is used to drive the displacement plate 106 to drive the clamping side plate 109 to automatically clamp the easy-open cover sheet through the active screw 105 and the follower screw 104, and the entire process is mechanized, thereby avoiding the need for manual positioning, making the positioning method time-saving and labor-saving, and avoiding the situation where the easy-open cover sheet is easily offset due to manual positioning, thereby ensuring the positioning stability of the easy-open cover sheet.

[0025] The mold structure 2 includes a lower mold base 201 and a driving frame 202, both of which are fixedly installed on the top of the placement table 102. The interior of the driving frame 202 is slidably connected to an upper mold base 204 through an electric push rod 203, and a punch 205 is provided at the bottom end of the upper mold base 204.

[0026] Specifically, the surfaces of the follower screw 104 and the active screw 105 are respectively provided with two sections of thread grooves in opposite directions, and two thread blocks 107 are fixedly installed on the bottom of the displacement plate 106. The two thread blocks 107 at the bottom of the same displacement plate 106 are respectively threadedly connected to the thread grooves in the same directions of the follower screw 104 and the active screw 105, and the movement directions of the two displacement plates 106 are opposite.

[0027] In this embodiment, the displacement plate 106 drives the clamping side plate 109 to gradually contact the easy-open cover sheet material, so that the clamping side plate 109 fixes the easy-open cover sheet material on the lower mold base 201 .

[0028] Specifically, a receiving tube 108 is fixedly mounted on the top of the displacement plate 106 , and the inner wall of the receiving tube 108 is slidably connected to the bottom end of the clamping side plate 109 via a damping spring.

[0029] In this embodiment, the automatic rebound resilience of the damping spring can make the clamping side plate 109 be stretched to generate a reaction force after contacting the easy-open cover sheet, so that the damping spring can press the clamping side plate 109 onto the easy-open cover sheet, thereby further improving the positioning stability of the easy-open cover sheet.

[0030] Specifically, the ejection structure 3 includes an articulated seat 301, the bottom end of which is fixedly connected to the top of the placement table 102, the interior of the articulated seat 301 is rotatably connected to a hydraulic cylinder 302, and the movable end of the hydraulic cylinder 302 is fixedly installed with an ejection inclined block 303.

[0031] In this embodiment, when the ejection structure 3 is not in use, the ejection bevel block 303 is usually in a flipped state, that is, the ejection bevel block 303 usually does not contact the lower mold base 201, thereby ensuring the placement stability of the easy-open cover sheet.

[0032] When in use, the easy-open cover sheet is first placed on the lower die base 201, and then the clamping device 1 is started through the control panel 4, so that the driving motor 103 drives the active screw 105 and the follower screw 104 to rotate through the transmission chain, so that the active screw 105 and the follower screw 104 start to rotate synchronously, and because the surfaces of the active screw 105 and the follower screw 104 are provided with two sections of thread grooves in opposite directions, and the two thread blocks 107 at the bottom of the same displacement plate 106 will respectively engage with the The thread grooves of the active screw 105 and the follower screw 104 are threadedly connected in the same direction, so when the displacement plate 106 is misaligned with the thread grooves of the active screw 105 and the follower screw 104 through the thread block 107, the thread block 107 will drive the displacement plate 106 to slide horizontally, and the two displacement plates 106 will move relatively, so that the displacement plate 106 drives the clamping side plate 109 to gradually contact the easy-open cover sheet, so that the clamping side plate 109 fixes the easy-open cover sheet on the lower die seat 201;

[0033] Then, the electric push rod 203 is started, so that the movable end of the electric push rod 203 drives the upper die seat 204 to gradually descend, so that the upper die seat 204 drives the punch 205 to start punching and forming the easy-open cover sheet, and punches the easy-open cover sheet into a basic cover of the easy-open cover;

[0034] Then, the hydraulic cylinder 302 is flipped through the hinged seat 301, so that the hydraulic cylinder 302 drives the ejection inclined block 303 to gradually overlap with the top of the lower die base 201, and then the hydraulic cylinder 302 is started, so that the movable end of the hydraulic cylinder 302 drives the ejection inclined block 303 to slide on the top of the lower die base 201, prompting the ejection inclined block 303 to eject the basic cover of the easy-open cover from the top of the lower die base 201.

[0035] In summary, the molding die for producing the easy-open lid is provided with a clamping device 1, and utilizes a driving motor 103 to drive the displacement plate 106 to drive the clamping side plate 109 to automatically clamp the easy-open lid sheet through the active screw 105 and the follower screw 104, and the entire process is mechanized, thereby avoiding the need for manual positioning, making the positioning method time-saving and labor-saving, and avoiding the easy-open lid sheet material from being easily offset due to manual positioning, thereby ensuring the positioning stability of the easy-open lid sheet material.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A molding die for producing an easy-open lid, comprising a clamping device (1), characterized in that: The top end of the clamping device (1) is provided with a mold structure (2) and an ejection structure (3), and the ejection structure (3) is located on the inner side of the mold structure (2); The clamping device (1) comprises a processing machine (101), a placing table (102) is fixedly installed on the top of the processing machine (101), a follower screw (104) and a driving screw (105) are rotatably connected in the inner cavity of the processing machine (101) through a driving motor (103) and a transmission chain, two displacement plates (106) are arranged between the follower screw (104) and the driving screw (105), and a clamping side plate (109) is arranged on the top of the displacement plate (106); The mold structure (2) comprises a lower mold base (201) and a driving frame (202), wherein the lower mold base (201) and the driving frame (202) are both fixedly mounted on the top of a placement table (102), and the interior of the driving frame (202) is slidably connected to an upper mold base (204) via an electric push rod (203), and a punch (205) is provided at the bottom end of the upper mold base (204).

2. A molding die for producing an easy-open lid according to claim 1, characterized in that: The surfaces of the follower screw (104) and the active screw (105) are respectively provided with two sections of thread grooves in opposite directions. Two thread blocks (107) are fixedly installed at the bottom of the displacement plate (106). The two thread blocks (107) at the bottom of the same displacement plate (106) are respectively threadedly connected to the thread grooves in the same direction of the follower screw (104) and the active screw (105). The movement directions of the two displacement plates (106) are opposite.

3. A molding die for producing an easy-open lid according to claim 1, characterized in that: A receiving tube (108) is fixedly mounted on the top of the displacement plate (106), and the inner wall of the receiving tube (108) is slidably connected to the bottom end of the clamping side plate (109) via a damping spring.

4. The molding die for producing an easy-open lid according to claim 1, characterized in that: A slide groove is provided inside the placement table (102), and the clamping side plate (109) passes through the slide groove and extends to the top of the placement table (102).

5. The molding die for producing an easy-open lid according to claim 1, characterized in that: The ejection structure (3) comprises an articulated seat (301), the bottom end of the articulated seat (301) is fixedly connected to the top of the placement table (102), the interior of the articulated seat (301) is rotatably connected to a hydraulic cylinder (302), and the movable end of the hydraulic cylinder (302) is fixedly mounted with an ejection inclined block (303).

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