Bottom punching forming device

Abstract

The utility model belongs to the field of paper cup machines, and provides a bottom punching forming device which comprises a forming assembly, a transmission seat and a cam. Wherein the forming assembly comprises a bottom punching guide cylinder and a forming main shaft; the first shaft part and the second shaft part are located on the two sides of the flange part, and the transmission base is in transmission connection with the bottom punching guide cylinder through the second shaft part and used for driving the bottom punching guide cylinder to reciprocate in the axial direction of the transmission base. The first shaft part is sleeved with the cam, the axial direction of the cam is parallel to the first shaft part, a plurality of connecting structures used for being detachably connected with the cam are formed on the flange part around the first shaft part, and the cam is detachably connected with the flange part through the connecting structures and can rotate around the first shaft part after being separated from the flange part. The transmission seat is in transmission connection with the forming spindle through a cam and used for driving the forming spindle to reciprocate in the axial direction.

Description

Technical Field

[0001] The present application belongs to the field of paper cup machines, and in particular to a bottom punching and forming device. Background Art

[0002] In the punching and forming device of a traditional paper cup machine, the transmission system plays a vital role. It is responsible for driving the punching and forming structure to move at a predetermined time interval to ensure the precise forming of the bottom of the paper cup.

[0003] However, due to the structural design of the transmission system, the structures used for punching and forming in the traditional punching and forming device can only be operated at fixed time intervals. However, in the actual production process, due to the changes in the material, thickness and production speed of the paper cup, it is often necessary to adjust the time interval between punching and forming to obtain the best forming effect. However, the traditional device cannot meet this demand. Therefore, it is necessary to solve the above technical problems. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a bottom punching and forming device to solve the technical problem of poor flexibility in the use of the bottom punching and forming device in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a bottom punching and forming device, comprising:

[0006] A forming assembly, including a punch guide cylinder and a forming spindle;

[0007] A transmission seat, which forms a flange portion and a first shaft portion and a second shaft portion located on both sides of the flange portion, wherein the transmission seat is connected to the bottom punching guide cylinder through the second shaft portion and is used to drive the bottom punching guide cylinder to reciprocate along its own axial direction;

[0008] A cam is mounted on the first shaft portion and the axial direction of the cam is parallel to the first shaft portion. A plurality of connection structures for detachably connecting with the cam are formed on the flange portion around the first shaft portion. The cam is detachably connected to the flange portion through the connection structures and can rotate around the first shaft portion after being separated from the flange portion. The transmission seat is connected to the forming spindle through the cam transmission and is used to drive the forming spindle to reciprocate along its own axial direction.

[0009] Optionally, the connection structure is a mounting hole provided on the flange portion, and a plurality of waist-shaped holes corresponding to the mounting hole are formed on the cam.

[0010] Optionally, the mounting holes are arranged in two groups and are symmetrical about the first axis portion, and the distance between adjacent mounting holes in each group is the same.

[0011] Optionally, the second shaft portion is parallel to the first shaft portion, a shaft hole parallel to the second shaft portion and eccentrically disposed with respect to the second shaft portion is formed on the transmission base, and the bottom punching and forming device further includes a transmission shaft connected to the transmission base through the shaft hole and a swing sleeve movably sleeved on the second shaft portion and capable of rotating around the second shaft portion;

[0012] The transmission base is in transmission connection with the bottom punching guide cylinder through the swing sleeve.

[0013] Optionally, the bottom punching and forming device further includes a swing fork hinged to the bottom punching guide cylinder and an adjusting rod connected between the swing fork and the swing sleeve and having an adjustable length;

[0014] The swing sleeve and the swing fork are connected to two ends of the adjusting rod along the self-length adjusting direction of the adjusting rod.

[0015] Optionally, the transmission base is detachably connected to the transmission shaft.

[0016] Optionally, a key groove parallel to the shaft hole and communicating with the shaft hole is formed on the transmission base, and a step abutting against the second shaft portion is formed on the transmission shaft;

[0017] The bottom punching and forming device further includes a pressing plate detachably connected to the transmission shaft, and the transmission base is clamped between the pressing plate and the step.

[0018] Optionally, the first shaft portion is coaxial with the shaft hole.

[0019] Optionally, one end of the swing fork away from the bottom punching guide cylinder is hinged to the box body, the transmission shaft is rotationally supported by the box body, and the bottom punching guide cylinder is slidably supported by the box body.

[0020] The beneficial effect of the bottom punching and forming device provided by the present application is that: compared with the prior art, in the bottom punching and forming device provided by the present application, the bottom punching guide cylinder for punching the target paper pattern is in transmission connection with the second shaft portion on the transmission base, and the forming main shaft for forming the punched target paper pattern into the target cup bottom is in transmission connection with the first shaft portion on the transmission base through a cam. Since the axis of the cam is parallel to the first shaft portion and can rotate around the first shaft portion after being separated from the flange portion, and a plurality of connection structures for detachably connecting with the cam are formed around the first shaft portion on the flange portion. In this way, by rotating the cam around the first shaft portion, the initial phase of the cam relative to the transmission base can be adjusted, and thus the forming main shaft transmission-connected to the cam and the bottom punching guide cylinder directly transmission-connected to the transmission base can act at different time intervals, which is beneficial to significantly improving the use flexibility of the bottom punching and forming device in the present application, far superior to the prior art. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 Explosion structure schematic diagram of the bottom punching and forming device provided by the embodiment of the present application;

[0023] Figure 2 Side view structure schematic diagram of the bottom punching and forming device provided by the embodiment of the present application;

[0024] Figure 3 Along Figure 2 Cross-sectional view along the A-A line in;

[0025] Figure 4 Cooperating structure schematic diagram of the transmission seat and the cam provided by the embodiment of the present application;

[0026] Figure 5 Overall structure schematic diagram of the transmission seat provided by the embodiment of the present application.

[0027] Among them, each reference numeral in the figure: 101, bottom punching guide cylinder; 102, forming main shaft; 200, transmission seat; 201, flange part; 202, first shaft part; 203, second shaft part; 204, mounting hole; 205, shaft hole; 206, keyway; 300, cam; 301, kidney-shaped hole; 400, transmission shaft; 401, step; 500, swing sleeve; 600, swing fork; 700, adjusting rod; 800, pressing plate; 900, roller; 1000, box body. Detailed implementation manners

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the following further details the present application in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0032] Please refer to Figures 1 to 5 , and a bottom punching and forming device provided by an embodiment of the present application will be described below. The bottom punching and forming device includes a forming assembly, a transmission seat 200, and a cam 300. Among them:

[0033] The transmission seat 200 forms a flange portion 201 and a first shaft portion 202 and a second shaft portion 203 located on both sides of the flange portion 201. The transmission seat 200 is drivingly connected to the bottom punching guide cylinder 101 through the second shaft portion 203 and is used to drive the bottom punching guide cylinder 101 to reciprocate along its own axis; the cam 300 is sleeved on the first shaft portion 202 and the axis of the cam 300 is parallel to the first shaft portion 202. A plurality of connection structures for detachably connecting with the cam 300 are formed on the flange portion 201 around the first shaft portion 202. The cam 300 is detachably connected to the flange portion 201 through the connection structure and can rotate around the first shaft portion 202 after being separated from the flange portion 201. The transmission seat 200 is drivingly connected to the forming main shaft 102 through the cam 300 and is used to drive the forming main shaft 102 to reciprocate along its own axis. It can be understood that the forming assembly in this embodiment can be selected as a common structure in the prior art. Generally, a cutter capable of punching out a circular paper pattern is connected to the bottom punching guide cylinder 101. After the bottom punching is completed, the forming main shaft 102 can then press the circular paper pattern into the target cup bottom shape. The punch and the forming die driven by the forming main shaft 102 can adopt the prior art. Usually, the cam 300 adopts a conjugate cam structure, and two rollers 900 are arranged on the forming main shaft 102. The two rollers 900 are respectively located on both sides of the axis of the cam 300 so that the forming main shaft 102 can reciprocate along its own axis under the action of the rollers 900 during the rotation of the cam 300; the bottom punching guide cylinder 101 is also coaxially arranged with the forming main shaft 102 to achieve stable relative movement between the two, which will not be elaborated here.

[0034] According to the above structure provided in this embodiment, in the bottom punching and forming device provided in this embodiment, the bottom punching guide cylinder 101 for punching the target paper pattern is in transmission connection with the second shaft portion 203 on the transmission seat 200, and the forming main shaft 102 for forming the punched target paper pattern into the target cup bottom is in transmission connection with the first shaft portion 202 on the transmission seat 200 through the cam 300. Since the axis of the cam 300 is parallel to the first shaft portion 202 and can rotate around the first shaft portion 202 after being separated from the flange portion 201, and a plurality of connection structures for detachably connecting with the cam 300 are formed around the first shaft portion 202 on the flange portion 201. In this way, by rotating the cam 300 around the first shaft portion 202, the initial phase of the cam 300 relative to the transmission seat 200 can be adjusted. Thus, the forming main shaft 102 transmission-connected to the cam 300 and the bottom punching guide cylinder 101 directly transmission-connected to the transmission seat 200 can act at different time intervals, which is beneficial to significantly improving the use flexibility of the bottom punching and forming device in this embodiment, far superior to the prior art.

[0035] In another embodiment of the present application, please refer to Figures 1 to 5 , the connection structure is the mounting hole 204 provided on the flange portion 201, and a plurality of waist-shaped holes 301 corresponding to the mounting hole 204 are formed on the cam 300. According to the above structure provided in this embodiment, by corresponding the waist-shaped holes 301 on the cam 300 with different mounting holes 204 on the flange portion 201, the initial phase of the cam 300 relative to the transmission seat 200 can be quickly adjusted. In addition, the waist-shaped holes 301 provided on the cam 300 also allow a certain degree of fine adjustment of the cam 300 after it is connected to a certain mounting hole 204, which is beneficial to further improving the use flexibility of the bottom punching and forming device in this embodiment.

[0036] In another embodiment of the present application, please refer to Figures 1 to 5 , two groups of mounting holes 204 are provided and are symmetric about the first shaft portion 202, and the distance between adjacent mounting holes 204 in each group is the same. According to the above structure provided in this embodiment, the mounting holes 204 symmetric about the first shaft portion 202 can enable the cam 300 to form two stable connection sites with the transmission seat 200 after being adjusted relative to the transmission seat 200, which is beneficial to significantly improving the use stability of the bottom punching and forming device in this embodiment.

[0037] In another embodiment of the present application, please refer to Figures 1 to 5, the second shaft portion 203 is parallel to the first shaft portion 202. A shaft hole 205 is formed on the transmission seat 200, which is parallel to the second shaft portion 203 and eccentrically arranged with respect to the second shaft portion 203. Among them, the first shaft portion 202 is coaxial with the shaft hole 205; the bottom punching and forming device further includes a transmission shaft 400 connected to the transmission seat 200 through the shaft hole 205 and a swing sleeve 500 movably sleeved on the second shaft portion 203 and capable of rotating around the second shaft portion 203; the transmission seat 200 is in transmission connection with the bottom punching guide cylinder 101 through the swing sleeve 500. According to the above structure provided in this embodiment, since the second shaft portion 203 is parallel to the first shaft portion 202 and eccentrically arranged with respect to the shaft hole 205, when the transmission shaft 400 rotates, the second shaft portion 203 can be driven to yaw around the central axis parallel to the axial direction of the cam 300, so that the initial phase adjustment of the cam 300 relative to the transmission seat 200 can more fully affect the action time interval between the bottom punching guide cylinder 101 and the forming main shaft 102, which is beneficial to further improving the use flexibility of the bottom punching and forming device in this embodiment.

[0038] In another embodiment of the present application, please also refer to Figures 1 to 5 , the bottom punching and forming device further includes a swing fork 600 hinged on the bottom punching guide cylinder 101 and an adjusting rod 700 with an adjustable length connected between the swing fork 600 and the swing sleeve 500; the swing sleeve 500 and the swing fork 600 are connected to both ends of the adjusting rod 700 along the direction of its own length adjustment; here, one end of the swing fork 600 away from the bottom punching guide cylinder 101 is hinged to the box body 1000, the transmission shaft 400 is rotationally supported by the box body 1000, and the bottom punching guide cylinder 101 is slidably supported by the box body 1000. Generally, a sliding bearing is provided between the bottom punching guide cylinder 101 and the box body 1000. According to the above structure provided in this embodiment, since the length of the adjusting rod 700 is adjustable, when the length of the adjusting rod 700 changes, the initial position of the swing fork 600 relative to the swing sleeve 500 will also change correspondingly, so that the relative position matching during the action between the bottom punching guide cylinder 101 and the forming main shaft 102 can also be changed, which is beneficial to further improving the use flexibility of the bottom punching and forming device in this embodiment.

[0039] In another embodiment of the present application, please also refer to Figures 1 to 5 , the transmission seat 200 is detachably connected to the transmission shaft 400. According to the above structure provided in this embodiment, the transmission seat 200 detachably connected to the transmission shaft 400 can be replaced very conveniently, so that the diameter sizes of the first shaft portion 202 and the second shaft portion 203 on the transmission seat 200 and the positions of the connection holes on the flange portion 201 can be adjusted more flexibly, which is beneficial to further improving the use flexibility of the bottom punching and forming device in this embodiment.

[0040] In another embodiment of the present application, please also refer to Figures 1 to 5, a key groove 206 parallel to and communicating with the shaft hole 205 is formed on the transmission seat 200, and a step 401 abutted against the second shaft portion 203 is formed on the transmission shaft 400; the bottom punching and forming device further includes a pressing plate 800 detachably connected to the transmission shaft 400, and the transmission seat 200 is clamped between the pressing plate 800 and the step 401. According to the above structure provided in this embodiment, on the one hand, the pressing plate 800 can cooperate with the step 401 provided on the transmission shaft 400 to stably clamp the transmission seat 200, and on the other hand, it can also enable the transmission seat 200 to be quickly and conveniently detached from the transmission shaft 400, which is beneficial to further improving the use flexibility of the bottom punching and forming device in this embodiment.

[0041] The foregoing is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A bottom punching and forming device, characterized in that: include: A forming assembly, comprising a punch guide cylinder (101) and a forming spindle (102); A transmission seat (200) is formed with a flange portion (201) and a first shaft portion (202) and a second shaft portion (203) located on both sides of the flange portion (201); the transmission seat (200) is transmission-connected to the bottom punching guide cylinder (101) via the second shaft portion (203) and is used to drive the bottom punching guide cylinder (101) to reciprocate along its own axial direction; A cam (300) is sleeved on the first shaft portion (202) and the axial direction of the cam (300) is parallel to the first shaft portion (202); a plurality of connection structures for detachably connecting to the cam (300) are formed on the flange portion (201) around the first shaft portion (202); the cam (300) is detachably connected to the flange portion (201) via the connection structures and can rotate around the first shaft portion (202) after being separated from the flange portion (201); and the transmission seat (200) is transmission-connected to the forming spindle (102) via the cam (300) and is used to drive the forming spindle (102) to reciprocate along its own axis.

2. The bottom punching and forming device according to claim 1, characterized in that: The connection structure is a mounting hole (204) provided on the flange portion (201), and a plurality of waist-shaped holes (301) corresponding to the mounting hole (204) are formed on the cam (300).

3. The bottom punching and forming device according to claim 2, characterized in that: The mounting holes (204) are arranged in two groups and are symmetrical about the first shaft portion (202), and the distance between adjacent mounting holes (204) in each group is the same.

4. The bottom punching and forming device according to claim 1, characterized in that: The second shaft portion (203) is parallel to the first shaft portion (202); an axial hole (205) is formed on the transmission seat (200) and is parallel to the second shaft portion (203) and is eccentrically arranged with respect to the second shaft portion (203); the bottom punching forming device further comprises a transmission shaft (400) connected to the transmission seat (200) via the axial hole (205) and a swing sleeve (500) movably sleeved on the second shaft portion (203) and capable of rotating around the second shaft portion (203); The transmission seat (200) is transmission-connected to the bottom punching guide cylinder (101) via the swing sleeve (500).

5. The bottom punching and forming device according to claim 4, characterized in that: The punch bottom forming device further comprises a swing fork (600) hinged on the punch bottom guide cylinder (101) and an adjustment rod (700) connected between the swing fork (600) and the swing sleeve (500) and having an adjustable length; The swing sleeve (500) and the swing fork (600) are connected to two ends of the adjustment rod (700) along the length adjustment direction thereof.

6. The bottom punching and forming device according to claim 4, characterized in that: The transmission seat (200) is detachably connected to the transmission shaft (400).

7. The bottom punching and forming device according to claim 6, characterized in that: A keyway (206) is formed on the transmission seat (200) and is parallel to the shaft hole (205) and communicates with the shaft hole (205); and a step (401) is formed on the transmission shaft (400) and abuts against the second shaft portion (203); The bottom punching and forming device further comprises a pressing plate (800) detachably connected to the transmission shaft (400), and the transmission seat (200) is clamped between the pressing plate (800) and the step (401).

8. The bottom punching and forming device according to claim 4, characterized in that: The first shaft portion (202) is coaxial with the shaft hole (205).

9. The bottom punching and forming device according to claim 5, characterized in that: One end of the swing fork (600) away from the bottom punching guide cylinder (101) is hinged to the box body (1000), the transmission shaft (400) is rotatably supported by the box body (1000), and the bottom punching guide cylinder (101) is slidably supported by the box body (1000).

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