Rapid film changing device

Abstract

The utility model provides a quick film changing device. Belongs to the field of foam packaging. According to the technical key points, the device comprises a lower limiting mechanism, the lower limiting mechanism comprises a lower guide seat, a rotating shaft is rotationally connected to the middle position of the top of the lower guide seat, a stepping motor is fixedly connected to one side of the interior of the lower guide seat, and a driving gear is fixedly connected to the output end of the stepping motor; the outer side of the rotating shaft is fixedly connected with a movable gear meshed with the driving gear, the outer side of the rotating shaft is fixedly connected with a lower rotating disc, a plurality of lower limiting shafts slidably penetrate through the interior of the lower rotating disc in an annular array mode, and a groove is formed in one side of the top of the lower guide seat. The utility model aims to provide a quick film changing device. The replacement of the membrane cylinder is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of foam packaging, in particular to a rapid film changing device. Background Art

[0002] Foam plastics are a type of polymer material formed by a large number of gas micropores dispersed in solid plastics. They have the characteristics of light weight, heat insulation, sound absorption, shock absorption, etc., and their dielectric properties are better than those of base resins. They are widely used. Almost all kinds of plastics can be made into foam plastics. Foam molding has become an important field in plastic processing. After foam plastics are processed and molded, they need to be wrapped with a protective film baler for easy transportation to reduce the wear of foam plastic products during transportation. During the use of the protective film baler, the packaging film cylinder needs to be replaced frequently to replenish the wrapping film.

[0003] The current rapid film changing device, as described in the patent with announcement number CN217100570U, includes a workbench, a turntable and a protective film fixing device, wherein a cavity is provided inside the workbench, a second motor is fixedly installed at the bottom of the workbench cavity, a turntable is fixedly installed at the top of the output shaft of the second motor, a fixing column is fixedly connected to the top of the turntable, a first rotating bearing is fixedly installed on the outer surface of the fixing column, a rotating socket is fixedly installed on the outer surface of the first rotating bearing, a first mounting plate is fixedly connected to the top of the workbench, and a protective film fixing device is fixedly installed on the top of the first mounting plate.

[0004] With respect to the above-mentioned related technologies, the inventors believe that since the bottom of the membrane cylinder is limited by the rotating socket, when the membrane cylinder is replaced, the membrane cylinder needs to be lifted to be taken and placed, which makes the replacement of the membrane cylinder inconvenient. Utility Model Content

[0005] The purpose of the utility model is to provide a rapid membrane replacement device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A rapid film changing device, comprising

[0008] A lower limit mechanism, wherein the lower limit mechanism comprises a lower guide seat, a rotating shaft is rotatably connected at the middle position of the top of the lower guide seat, a stepper motor is fixedly connected to an inner side of the lower guide seat, a driving gear is fixedly connected to the output end of the stepper motor, a moving gear meshing with the driving gear is fixedly connected to the outer side of the rotating shaft, a lower turntable is fixedly connected to the outer side of the rotating shaft, a plurality of lower limit shafts are slidably penetrated in a circular array inside the lower turntable, a groove is provided on one side of the top of the lower guide seat, a lower limit disk is slidably connected to the outer side of each group of the lower limit shafts, and each group of the lower limit disks is rotatably connected to the lower turntable;

[0009] An upper limit positioning mechanism comprises threaded columns symmetrically fixedly connected to both sides of the top of the lower guide seat, the tops of the two groups of threaded columns are fixedly connected to top plates, the outer sides of the two groups of threaded columns are detachably connected to connecting plates, the interior of the connecting plate is penetrated and fixed with an upper guide seat, the bottom of the upper guide seat is rotatably connected with an upper turntable, the upper turntable is slidably connected to the rotating shaft, the interior of the upper turntable is slidably penetrated by a plurality of upper limit positioning shafts in a circular array, the top of each group of the upper limit positioning shafts is fixedly connected to an extension block, and one side of the top of the upper guide seat is fixedly connected with a protrusion corresponding to the groove.

[0010] As a further solution of the utility model: the bottom of each group of lower limit shafts is movably connected with a second ball, the bottom of each group of lower limit plates is movably connected with a plurality of first balls in a circular array, and the bottom of each group of extension blocks is movably connected with a third ball.

[0011] As a further solution of the utility model: a plurality of reinforcing ribs are fixedly connected to the outer side of the upper guide seat in a ring array, and each group of the reinforcing ribs is fixedly connected to the connecting plate.

[0012] As a further solution of the utility model: the outer side of each group of the upper limit shafts is fixedly connected with a convex strip, the convex strip is slidably connected with the upper limit disk, and the convex strip is slidably connected to the upper turntable.

[0013] As a further solution of the utility model: a guide bar is fixedly connected to the outer side of the rotating shaft, the guide bar is slidably connected to the upper turntable, and the guide bar and the rotating shaft both pass through the upper guide seat.

[0014] As a further solution of the utility model: nuts are symmetrically provided on both sides of the connecting plate, and the nuts are threadedly connected to the threaded columns.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] After the utility model adopts the above structure, through the mutual cooperation of the lower limit shaft, the groove, the stepping motor, the upper limit shaft and the protrusion, when the stepping motor rotates, the driving gear and the moving gear can drive the rotating shaft to rotate, and when the rotating shaft rotates, the lower turntable and the upper turntable can be driven to rotate synchronously, and when the lower turntable and the upper turntable rotate, they can drive each group of lower limit shafts and upper limit shafts to rotate accordingly, thereby realizing the position adjustment of the film cylinder between each group of upper limit shafts and lower limit shafts, and when the consumed film cylinder is conveyed to the position corresponding to the groove, the corresponding lower limit shaft moves to correspond to the second ball, so that the lower limit shaft moves downward under the action of gravity. The top of the lower limit shaft moves downward to below the top of the corresponding lower limit disk, so that the corresponding lower limit shaft releases the bottom limit on the membrane cylinder. When the consumed membrane cylinder is conveyed to the position corresponding to the groove, the corresponding upper limit shaft and extension block move to correspond to the protrusion, so that the protrusion lifts the corresponding extension block and the upper limit shaft, thereby driving the corresponding extension block and the upper limit shaft to move upward, so that the bottom of the corresponding upper limit shaft moves upward to above the bottom of the corresponding upper limit disk, thereby stopping the limitation of the membrane cylinder, so that the membrane cylinder can be replaced without lifting the membrane cylinder, thereby making the replacement of the membrane cylinder more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the embodiments in the accompanying drawings, but this does not constitute any limitation to the present invention.

[0018] Figure 1 The figure is a schematic diagram of the overall structure of a rapid membrane replacement device.

[0019] Figure 2 A fast membrane replacement device Figure 1 Schematic diagram of the A part structure.

[0020] Figure 3 A fast membrane replacement device Figure 1 Schematic diagram of the structure of part B.

[0021] Figure 4 This is a structural schematic diagram of a rapid membrane changing device from another perspective.

[0022] Figure 5 A fast membrane replacement device Figure 4 Schematic diagram of the C part structure.

[0023] In the figure: 1. lower limit mechanism; 101. lower guide seat; 102. rotating shaft; 103. stepping motor; 104. driving gear; 105. driven gear; 106. lower turntable; 107. lower limit shaft; 108. lower limit disk; 109. first ball; 110. second ball; 111. groove; 112. guide strip; 2. upper limit mechanism; 201. threaded column; 202. top plate; 203. connecting plate; 204. upper guide seat; 205. reinforcing rib plate; 206. convex block; 207. upper turntable; 208. upper limit shaft; 209. convex strip; 210. extension block; 211. third ball; 212. nut; 213. upper limit disk. DETAILED DESCRIPTION

[0024] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0025] See also Figure 1-5 A rapid film changing device includes a lower limit mechanism 1, which includes a lower guide seat 101, and a rotating shaft 102 is rotatably connected at the middle position of the top of the lower guide seat 101. The setting of the lower guide seat 101 can provide support for the rotating shaft 102. A stepper motor 103 is fixedly connected to one side of the inner part of the lower guide seat 101, and a driving gear 104 is fixedly connected to the output end of the stepper motor 103. A moving gear 105 meshing with the driving gear 104 is fixedly connected to the outer side of the rotating shaft 102. The stepper motor 103 is set to drive the driving gear 104 and the moving gear 105 to rotate when starting the work, and the moving gear 105 can drive the rotating shaft 102 to rotate when rotating. A lower turntable 106 is fixedly connected to the outer side of the rotating shaft 102, and the setting of the lower turntable 106 can rotate when the rotating shaft 102 rotates.

[0026] The lower turntable 106 has a plurality of lower limit shafts 107 slidingly penetrated in a circular array inside, so that when the lower turntable 106 rotates, each group of lower limit shafts 107 rotates accordingly, and the lower guide seat 101 can support the lower limit shafts 107, and the lower limit shafts 107 can limit the bottom of the film cylinder. The bottom of each group of lower limit shafts 107 is movably connected with a second ball 110, and the second ball 110 can roll on the top of the lower guide seat 101 when the lower limit shaft 107 rotates with the lower turntable 106, thereby reducing the friction between the lower limit shaft 107 and the lower guide seat 101. A groove 111 is provided on one side of the top of the lower guide seat 101, and the groove 111 can be set so that when the lower limit shaft 107 rotates to a position corresponding to the groove 111, the lower limit shaft 107 moves downward under the action of gravity to release the limit on the bottom of the film cylinder.

[0027] The outer side of each group of lower limit shafts 107 is slidably connected with a lower limit disk 108, and each group of lower limit disks 108 is rotatably connected to the lower turntable 106. The setting of the lower limit disk 108 can provide support for the bottom of the film cylinder. The bottom of each group of lower limit disks 108 is movably connected with a plurality of first balls 109 in an annular array. The setting of the first balls 109 can further support the lower limit disk 108, thereby improving the stability of the lower limit disk 108. The upper limit mechanism 2 includes threaded columns 201 symmetrically fixedly connected to both sides of the top of the lower guide seat 101. The tops of the two groups of threaded columns 201 are fixedly connected with a top plate 202. The setting of the threaded columns 201 can support the top plate 202. The outer sides of the two groups of threaded columns 201 are detachably connected with connecting plates 203, and nuts 212 are symmetrically provided on both sides of the connecting plates 203. The nuts 212 are threadedly connected to the threaded columns 201. The setting of the nuts 212 can adjust the height of the nuts 212 when rotating, thereby adjusting the height of the connecting plates 203, so as to meet the requirements of limiting membrane cylinders of different heights.

[0028] The upper guide seat 204 is fixedly connected to the interior of the connecting plate 203, and a plurality of reinforcing ribs 205 are fixedly connected to the outer side of the upper guide seat 204 in an annular array, and each group of reinforcing ribs 205 are fixedly connected to the connecting plate 203. The setting of the reinforcing ribs 205 can further connect and fix the upper guide seat 204 and the connecting plate 203, thereby improving the connection stability between the upper guide seat 204 and the connecting plate 203. The bottom of the upper guide seat 204 is rotatably connected to the upper turntable 207, and the upper turntable 207 is slidably connected to the rotating shaft 102. The outer side of the rotating shaft 102 is fixedly connected to the guide bar 112, and the guide bar 112 is slidably connected to the upper turntable 207. The guide bar 112 and the rotating shaft 102 both pass through the upper guide seat 204. The setting of the guide bar 112 can drive the upper turntable 207 to rotate when the rotating shaft 102 rotates. A plurality of upper limit shafts 208 are slidably penetrated in a circular array inside the upper turntable 207. The upper limit shafts 208 can be inserted into the inside of the film cylinder from the top of the film cylinder, thereby limiting the top of the film cylinder.

[0029] The outer side of each group of upper limit shafts 208 is fixedly connected with a convex strip 209, and the convex strip 209 is slidably connected with the upper limit disk 213. The convex strip 209 is slidably connected with the upper turntable 207. The setting of the convex strip 209 can guide the upper and lower sliding of the upper limit shaft 208, and can also reduce the probability of the extension block 210 turning away from the upper guide seat 204 and the top of the convex block 206. The top of each group of upper limit shafts 208 is fixedly connected with an extension block 210, and the top side of the upper guide seat 204 is fixedly connected with a convex block 206 corresponding to the groove 111. When the upper limit shaft 208 and the extension block 210 rotate to the top of the convex block 206, the extension block 210 and the upper limit shaft 208 are lifted, so that the upper limit shaft 208 is pulled out from the inside of the film cylinder, thereby releasing the limit on the top of the film cylinder. The bottom of each group of extension blocks 210 is movably connected with a third ball 211. The third ball 211 can roll on the top of the upper guide seat 204 and the protrusion 206 when the connecting plate 203 drives the upper limit shaft 208 and the nut 212 to rotate, thereby reducing the wear between the nut 212 and the upper guide seat 204 and the protrusion 206.

[0030] When in use, a film cylinder is placed on the top of each group of lower limit plates 108, so that the protruding lower limit shaft 107 and the upper limit shaft 208 can limit the film cylinder. After the stretch film on a group of film cylinders is consumed, the stepper motor 103 can be started, so that the stepper motor 103 drives the rotating shaft 102 and the lower turntable 106 to rotate through the transmission of the active gear 104 and the movable gear 105. When the rotating shaft 102 rotates, it can drive the guide strip 112 and the upper turntable 207 to rotate accordingly, so that the upper turntable 207 and the lower turntable 106 can rotate synchronously, so that the consumed film cylinder can be rotated away from the initial position, and the adjacent film cylinder is adjusted to the initial position of the previous group of film cylinders. Then, the stretch film packaging machine is supplied with stretch film in this way. When the consumed film cylinder is conveyed to the position corresponding to the groove 111, the corresponding The lower limit shaft 107 moves to correspond to the second ball 110, so that the lower limit shaft 107 moves downward under the action of gravity, so that the top of the lower limit shaft 107 drops to below the top of the corresponding lower limit disk 108, so that the corresponding lower limit shaft 107 releases the bottom limit on the membrane cylinder, and when the consumed membrane cylinder is conveyed to the position corresponding to the groove 111, the corresponding upper limit shaft 208 and the extension block 210 move to correspond to the protrusion 206, so that the protrusion 206 lifts the corresponding extension block 210 and the upper limit shaft 208, thereby driving the corresponding extension block 210 and the upper limit shaft 208 to move upward, so that the bottom of the corresponding upper limit shaft 208 moves upward to above the bottom of the corresponding upper limit disk 213, thereby stopping the limitation of the membrane cylinder, and then the membrane cylinder can be replaced.

[0031] The above embodiments are preferred implementation modes of the present invention and are only used to facilitate the explanation of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the relevant technical field, if they do not depart from the scope of the technical features of the present invention, can make equivalent embodiments by partial changes or modifications to the technical contents disclosed in the present invention, and they still fall within the scope of the technical features of the present invention without departing from the technical features of the present invention.

Claims

1. A rapid membrane replacement device, characterized in that: include A lower limit mechanism (1), the lower limit mechanism (1) comprising a lower guide seat (101), a rotating shaft (102) being rotatably connected at the middle position of the top of the lower guide seat (101), a stepping motor (103) being fixedly connected to one side of the interior of the lower guide seat (101), a driving gear (104) being fixedly connected to the output end of the stepping motor (103), and a moving tooth meshing with the driving gear (104) being fixedly connected to the outer side of the rotating shaft (102). The lower rotating disk (106) is fixedly connected to the outer side of the rotating shaft (102), and a plurality of lower limit shafts (107) are slidably penetrated in an annular array inside the lower rotating disk (106), and a groove (111) is provided on one side of the top of the lower guide seat (101), and the outer side of each group of the lower limit shafts (107) is slidably connected to a lower limit disk (108), and each group of the lower limit disks (108) is rotatably connected to the lower rotating disk (106); An upper limit positioning mechanism (2), the upper limit positioning mechanism (2) comprising threaded columns (201) symmetrically fixedly connected to both sides of the top of the lower guide seat (101), the tops of the two groups of threaded columns (201) are fixedly connected with a top plate (202), the outer sides of the two groups of threaded columns (201) are detachably connected with a connecting plate (203), the interior of the connecting plate (203) is penetrated and fixed with an upper guide seat (204), the bottom of the upper guide seat (204) is rotatably connected with an upper turntable (207), the upper turntable (207) is slidably connected to the rotating shaft (102), the interior of the upper turntable (207) is slidably penetrated with a plurality of upper limit positioning shafts (208) in a circular array, the top of each group of the upper limit positioning shafts (208) is fixedly connected with an extension block (210), and one side of the top of the upper guide seat (204) is fixedly connected with a protrusion (206) corresponding to the groove (111).

2. A rapid membrane replacement device according to claim 1, characterized in that: The bottom of each group of the lower limit shafts (107) is movably connected to a second ball (110), the bottom of each group of the lower limit plates (108) is movably connected to a plurality of first balls (109) in a ring array, and the bottom of each group of the extension blocks (210) is movably connected to a third ball (211).

3. A rapid membrane replacement device according to claim 1, characterized in that: A plurality of reinforcing rib plates (205) are fixedly connected to the outer side of the upper guide seat (204) in an annular array, and each group of the reinforcing rib plates (205) is fixedly connected to the connecting plate (203).

4. A rapid membrane replacement device according to claim 1, characterized in that: The outer side of each group of the upper limit shafts (208) is fixedly connected with a convex strip (209), the convex strip (209) is slidably connected with the upper limit disk (213), and the convex strip (209) is slidably connected with the upper turntable (207).

5. A rapid membrane replacement device according to claim 1, characterized in that: A guide bar (112) is fixedly connected to the outer side of the rotating shaft (102), the guide bar (112) is slidably connected to the upper rotating disk (207), and the guide bar (112) and the rotating shaft (102) both pass through the upper guide seat (204).

6. A rapid membrane replacement device according to claim 1, characterized in that: Nuts (212) are symmetrically provided on both sides of the connection plate (203), and the nuts (212) are threadedly connected to the threaded columns (201).

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