Vulcanizing mold for belt of plastic film residue recycling machine

Abstract

The utility model relates to the technical field of agricultural machinery, and discloses a vulcanizing mold for a residual film recycling machine belt, which comprises a forming mold, a screw embedding structure is additionally arranged at the bottom in a mold cavity of the forming mold, and the embedding structure comprises a positioning boss arranged corresponding to a screw head and a positioning column arranged corresponding to a screw punching position; two positioning bosses are distributed on the positioning bosses in the length direction of a die cavity of the forming die, the positioning columns correspond to the positioning bosses in a one-to-one mode, the positioning columns are arranged at the circle centers of the tops of the corresponding positioning bosses, and extrusion bosses used for reserving the offset of screw heads are further arranged at the positions, close to the positioning bosses, of the inner bottom of the die cavity of the forming die. The effect of prolonging the service life of the belt is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural machinery, and in particular to a vulcanization mold for a belt of a residual film recycling machine. Background Art

[0002] The mulching technology has been widely promoted and applied in agricultural planting areas due to its advantages of efficient income increase, temperature increase and moisture retention. However, since the residual plastic film is difficult to degrade, if it is not recycled in time and effectively, it will have a serious impact on farmland and the ecological environment, causing "white pollution". The "white pollution" formed by the residual film not only seriously pollutes the ecological environment and soil, but also is not conducive to mechanical operation. Therefore, as a major agricultural country, my country has studied a variety of residual film recycling machinery.

[0003] During the operation of the residual film recycling machine, the soil around the film is loosened, the film lifting shovel pushes up the residual film on the surface, and the film lifting teeth lift up the residual film. Finally, the film stripping (unloading) mechanism removes the lifted residual film and sends it to the film collecting component. Among them, the film picking, film stripping and film collecting components are the core mechanisms that affect the film collection effect. The spike-tooth residual film recycling belt is made of a high-power V-belt with holes drilled and fixed with spikes. Each spike is fixed by two screws, and the screw spacing is 50mm. The quality of the residual film recycling belt plays a vital role in the residual film recycling machine.

[0004] The current residual film recovery belt will break prematurely during operation, and the premature damage is mainly caused by the extrusion of the screws at the bottom of the belt. The belt needs to pass through the round roller during normal operation, which will cause the belt to bend. Since the belt is an elastic body, it can be deformed during the bending process, but the screw head is a metal part and is not easy to bend and deform. Therefore, when the belt passes through the round roller, the rubber part of the belt is repeatedly squeezed outward by the screw head, and a gap of about 5mm will be squeezed out at the bottom of the belt, which will eventually cause the belt to fail, and even cause the belt strength to decrease, resulting in the risk of belt breakage and shutdown. Utility Model Content

[0005] In order to increase the life of the belt, the present application provides a vulcanization mold for the belt of a residual film recovery machine.

[0006] The present application provides a vulcanization mold for a belt of a residual film recycling machine using the following technical solution:

[0007] A vulcanizing mold for the belt of a residual film recycling machine includes a molding mold, a screw embedding structure is added to the bottom of the mold cavity of the molding mold, the embedding structure includes a positioning boss arranged corresponding to the screw head and a positioning column arranged corresponding to the screw drilling position, the positioning boss has two positioning bosses distributed along the length direction of the mold cavity of the molding mold, the positioning columns correspond to the positioning bosses one by one, and the positioning columns are arranged at the center of the top of the corresponding positioning bosses, and an extrusion boss for reserving the screw head offset is also arranged at a position near the positioning boss at the bottom of the mold cavity of the molding mold.

[0008] By adopting the above technical solution, the positioning boss, positioning column and extrusion boss are set at the bottom of the vulcanization mold for making the belt, so that the belt made by the vulcanization mold has a placement groove corresponding to the screw head, a positioning hole corresponding to the screw hole, and an extrusion groove that reserves an offset for the screw head when the belt is deformed around the roller. The setting of the placement groove on the belt reduces the bulge caused by the screw, thereby increasing the smoothness of the belt operation; the setting of the positioning hole on the belt can better locate the intercept of the two screws, which is convenient for the precise installation of the spike teeth on the belt, and improves the work efficiency of installing the spike teeth on the belt; and the setting of the extrusion groove on the belt reduces the possibility of the screw head contacting the belt during the winding process when the belt roller is deformed, and also reduces the possibility of the screw tearing the belt during the operation of the belt, thereby increasing the service life of the belt and reducing the frequency of belt replacement, thereby saving the cost of using the residual film recycling machine.

[0009] Optionally, the thickness of the screw head is 2.6 mm, and the height of the positioning boss is 2.3-2.5 mm.

[0010] By adopting the above technical solution, the height of the positioning boss is slightly smaller than the thickness of the screw head, which satisfies the requirement for the screw to be embedded in the belt. As a result, when the belt is running around the round roller, the height at which the top surface of the screw head contacts the round roller and lifts up the belt is reduced, thereby increasing the smoothness of the belt operation. At the same time, it also prevents the screw head from being completely sunk into the belt, making it easier for the operator to subsequently replace the spikes on the belt.

[0011] Optionally, the extrusion boss is crescent-shaped and is disposed on opposite sides of the two positioning bosses, and a slope is disposed on the side of the extrusion boss facing the positioning boss, and the slope is inclined from top to bottom toward the side close to the positioning boss.

[0012] By adopting the above technical solution, when the belt passes through the round roller, the rubber part of the belt is repeatedly squeezed outward by the screw head, and a gap of about 5mm will be squeezed out at the bottom of the belt, which will eventually cause the belt to fail to operate, and even cause the belt strength to decrease, resulting in the risk of belt breakage and downtime. The extrusion boss in the vulcanization mold is set in an inclined crescent shape, so that the extrusion groove on the molded belt is also set in an inclined crescent shape, and the maximum width of the inclined crescent-shaped extrusion groove is 5mm, which just matches the 5mm gap that may be squeezed out at the bottom of the original belt, so as to protect the strength of the belt to the greatest extent and reduce the possibility of belt breakage.

[0013] Optionally, a cover plate is provided on the top of the forming mold, a sealing gasket is provided on the side of the cover plate facing the forming mold, a plug-in groove is opened on the top wall of the forming mold corresponding to the sealing gasket, and the sealing gasket is plug-fitted into the plug-in groove.

[0014] By adopting the above technical solution, the setting of the cover plate reduces the possibility of external dust entering the cavity during the belt forming process, and the setting of the sealing gasket further strengthens the sealing of the molding cavity during the belt forming process.

[0015] Optionally, an ejection mechanism for ejecting the molding belt is provided at the bottom of the molding mold, and the ejection mechanism includes a plurality of ejector rods for ejecting the molding belt from the cavity and a lifting member for driving the plurality of ejector rods to rise and fall, and the plurality of ejector rods are arrayed at the bottom of the molding mold along the length direction of the molding mold, and the plurality of ejector rods all slide vertically through the bottom wall of the molding mold and extend to the inner bottom wall of the molding mold.

[0016] By adopting the above technical solution, after the belt in the molding groove is molded, the cover plate is opened, and the lifting member is used to push a plurality of ejector rods upward, and the ejector rods are distributed in an array, so that the molded belt is ejected from the mold cavity as a whole by the plurality of ejector rods, which makes it convenient for the operator to take the molded belt, thereby improving the demolding efficiency of the molded belt.

[0017] Optionally, a support frame is provided below the forming mold, and a circle of connecting strips is provided on the outer ring of the bottom of the forming mold, and the connecting strips are connected to the top of the support frame by bolts, and the bottom ends of several ejection rods are commonly connected to a connecting plate, and the connecting plate is located inside the support frame, and the connecting plate is vertically slidably set on the support frame, and the lifting member includes a screw rod vertically rotatably arranged on the workbench and a sleeve arranged at the bottom of the connecting plate corresponding to the screw rod, and the sleeve is threadedly sleeved on the screw rod.

[0018] By adopting the above technical solution, the forming mold frame is arranged on the support frame, so that the ejector rod can be more stable when ejecting the forming belt, and the bottom ends of several ejector rods are fixed on a connecting plate. When the screw is rotated, the sleeve is driven to move upward through the threaded cooperation between the sleeve and the screw and the guiding and limiting of the connecting plate by the support frame, thereby pushing the connecting plate to move upward, and finally the connecting plate pushes several ejector rods to eject the forming belt from the mold cavity.

[0019] Optionally, a driven gear is sleeved on the screw, a servo motor is arranged on the workbench located on one side of the screw, and a driving gear meshing with the driven gear is sleeved on the output shaft of the servo motor.

[0020] By adopting the above technical solution, the servo motor is driven to work, and the output shaft of the servo motor rotates to drive the driving gear to rotate, thereby rotating the driven gear meshing with it, and then driving the screw to rotate. A plurality of ejector rods are automatically driven to eject the molding belt from the mold cavity, thereby improving the demoulding efficiency of the molding belt.

[0021] Optionally, a handle is provided on the top of the cover.

[0022] By adopting the above technical solution, the setting of the handle makes it convenient for operators to take the cover.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The positioning boss, positioning column and extrusion boss are arranged at the bottom of the vulcanization mold for making the belt, so that the belt made by the vulcanization mold has placement grooves corresponding to the screw heads, positioning holes corresponding to the screw holes, and extrusion grooves that reserve offset for the screw heads when the belt roller is deformed. The placement grooves on the belt reduce the protrusions caused by the screws, thereby increasing the smoothness of the belt operation; the positioning holes on the belt can better locate the intercept of the two screws, which is convenient for the precise installation of spikes on the belt and improves the work efficiency of installing spikes on the belt; and the extrusion grooves on the belt reduce the possibility of the screw head contacting the belt during the winding process when the belt roller is deformed, and also reduce the possibility of the screws tearing the belt during the operation of the belt, thereby increasing the service life of the belt and reducing the frequency of belt replacement, thereby saving the use cost of the residual film recovery machine;

[0025] 2. The height of the positioning boss is slightly smaller than the thickness of the screw head, which allows the screw to be embedded in the belt. This reduces the height of the top surface of the screw head that contacts the roller and lifts the belt when the belt is running around the roller, thereby increasing the smoothness of the belt operation. At the same time, it also prevents the screw head from being completely sunk into the belt, making it easier for operators to replace the spikes on the belt later.

[0026] 3. As the belt passes through the round roller, the rubber part of the belt is repeatedly squeezed outward by the screw head, and a gap of about 5mm will be squeezed out at the bottom of the belt, which will eventually cause the belt to fail to operate, and even cause the belt strength to decrease, resulting in the risk of belt breakage and downtime. The extrusion boss in the vulcanization mold is set in an inclined crescent shape, so that the extrusion groove on the molded belt is also set in an inclined crescent shape, and the maximum width of the inclined crescent extrusion groove is 5mm, which just matches the 5mm gap that may be squeezed out at the bottom of the original belt, so as to protect the strength of the belt to the greatest extent and reduce the possibility of belt breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of Example 1.

[0028] Figure 2 It is a schematic diagram of the overall structure of Example 2.

[0029] Figure 3 It is a cross-sectional view of the overall structure of Example 2.

[0030] Description of reference numerals:

[0031] 01. Workbench; 1. Molding mold; 11. Connecting strip; 12. Plug-in slot; 2. Embedded structure; 21. Positioning boss; 22. Positioning column; 3. Extrusion boss; 4. Support frame; 5. Connecting plate; 6. Ejector mechanism; 61. Ejector rod; 62. Lifting member; 621. Screw; 622. Sleeve; 7. Cover plate; 71. Sealing gasket; 72. Handle; 8. Servo motor; 81. Driving gear; 9. Driven gear. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-3 This application is described in further detail.

[0033] The embodiment of the present application discloses a vulcanization mold for the belt of a residual film recovery machine.

[0034] Example 1

[0035] Reference Figure 1 The vulcanization mold for the belt of the residual film recycling machine includes a forming mold 1, a screw embedding structure 2 is added near the center of the bottom of the mold cavity of the forming mold 1, and an extrusion boss 3 for reserving the screw head offset is also provided near the positioning boss 21 at the bottom of the mold cavity of the forming mold 1.

[0036] Reference Figure 1 In this embodiment, the length of the molding die 1 is 320 mm, the width is 59.1 mm, the height is 27.5 mm, and the width of the top of the mold cavity of the molding die 1 is 38.1 mm.

[0037] Reference Figure 1 The embedded structure 2 includes a positioning boss 21 and a positioning column 22. Two positioning bosses 21 are integrally formed in the cavity of the molding mold 1. The center distance between the two positioning bosses 21 is 50 mm to match the nail teeth to be installed. The positioning boss 21 is used to reserve a placement groove for the screw head on the molding belt. The height range of the positioning boss 21 is between 2.3 and 2.5 mm, and the corresponding thickness of the screw head is slightly smaller than 2.6 mm. The positioning boss 21 in this embodiment has a diameter of 22 mm and a height of 2.4 mm, which meets the requirements of the screw being embedded in the belt and prevents the screw head from being completely sunk into the belt.

[0038] Reference Figure 1 The positioning column 22 is integrally formed at the center of the top of the corresponding positioning boss 21, and a positioning hole is reserved for the position of the screw hole.

[0039] Reference Figure 1 The extrusion boss 3 is integrally formed in a crescent shape on the bottom wall of the cavity of the molding die 1, and the two extrusion bosses 3 are respectively arranged on the opposite sides of the two positioning bosses 21, and the side of the extrusion boss 3 facing the positioning boss 21 is provided with an inclined surface from top to bottom approaching the positioning boss 21. In this embodiment, the maximum width of the crescent-shaped extrusion boss 3 is 5mm, which just matches the 5mm gap that may be squeezed out at the bottom of the original belt, so as to protect the strength of the belt to the greatest extent and reduce the possibility of the belt breaking.

[0040] The implementation principle of a vulcanization mold for a belt of a residual film recycling machine according to an embodiment of the present application is as follows: a positioning boss 21, a positioning column 22, and an extrusion boss 3 are arranged at the bottom of the vulcanization mold for making the belt, so that the belt made by the vulcanization mold has a placement groove corresponding to the screw head, a positioning hole corresponding to the screw hole, and an extrusion groove for reserving an offset for the screw head when the belt is deformed around the roller. The setting of the placement groove on the belt reduces the protrusion caused by the screw, thereby increasing the smoothness of the belt operation; the setting of the positioning hole on the belt can better locate the intercept of the two screws, which is convenient for accurately installing the spike teeth on the belt, and improves the work efficiency of installing the spike teeth on the belt; and the setting of the extrusion groove on the belt reduces the possibility of the screw head contacting the belt during the winding process when the belt roller is deformed, and also reduces the possibility of the screw tearing the belt during the operation of the belt.

[0041] Example 2

[0042] Reference Figure 2 and Figure 3The difference between this embodiment and the embodiment 1 is that a support frame 4 is fixedly provided on the workbench 01, and a circle of connecting strips 11 are integrally formed on the outer ring of the bottom of the forming mold 1. The connecting strips 11 are connected to the support frame 4 by bolts to fix the forming mold 1 and the support frame 4. An ejection mechanism 6 is provided between the bottom of the forming mold 1 and the workbench 01. The ejection mechanism 6 is located inside the support frame 4 and is used to improve the efficiency of demolding the forming belt. In addition, a cover plate 7 for sealing the mold cavity is detachably provided on the top of the forming mold 1.

[0043] Reference Figure 2 and Figure 3 The ejection mechanism 6 includes a plurality of ejection rods 61 and a lifting member 62. The plurality of ejection rods 61 are arranged at the bottom of the molding die 1 along the length direction of the molding die 1, and vertically slide through the bottom wall of the molding die 1 to extend to the inner bottom wall of the molding die 1. The bottom ends of the plurality of ejection rods 61 are fixedly connected to a connecting plate 5. The connecting plate 5 is vertically slidably matched with the supporting frame 4.

[0044] Reference Figure 2 and Figure 3 The lifting member 62 in this embodiment includes a screw 621 and a sleeve 622. The screw 621 is arranged on the workbench 01 for vertical rotation, and a driven gear 9 is fixedly sleeved on the screw 621. A servo motor 8 is fixedly arranged on the workbench 01, and a driving gear 81 meshing with the driven gear 9 is fixedly sleeved on the output shaft of the servo motor 8. The sleeve 622 is sleeved on the screw 621 by a thread, and the outer top wall of the sleeve 622 is fixedly arranged on the bottom of the connecting plate 5.

[0045] Reference Figure 2 and Figure 3 When the screw 621 rotates to the top end to abut against the top wall of the sleeve 622, the tops of the ejector rods 61 are at the same level as the bottom wall of the cavity of the molding die 1 and fit tightly with the bottom wall of the cavity of the molding die 1.

[0046] Reference Figure 2 A circle of plug-in grooves 12 are provided on the top wall of the molding die 1 , and a sealing gasket 71 is inserted into the plug-in groove 12 . The top of the sealing gasket 71 is fixedly disposed on the cover plate 7 , and a handle 72 is fixedly disposed on the top of the cover plate 7 .

[0047] The implementation principle of Example 2 is that after the rubber belt in the molding groove is vulcanized and formed, the driving motor is used to drive the active gear 81 to rotate, and the rotation of the active gear 81 drives the driven gear 9 meshing with it to rotate, thereby driving the screw 621 to rotate. When the screw 621 is rotated, the sleeve 622 is driven to move upward through the threaded cooperation between the sleeve 622 and the screw 621 and the guiding and limiting of the connecting plate 5 by the support frame 4, thereby pushing the connecting plate 5 to move upward, and finally the connecting plate 5 pushes a plurality of ejection rods 61 to eject the molded belt from the mold cavity.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. The vulcanizing mold for the belt of the residual film recycling machine is characterized in that: The invention comprises a forming die (1), wherein a screw embedding structure (2) is additionally provided at the bottom of the mold cavity of the forming die (1), wherein the embedding structure (2) comprises a positioning boss (21) provided corresponding to the screw head and a positioning column (22) provided corresponding to the screw punching position, wherein two positioning bosses (21) are distributed along the length direction of the mold cavity of the forming die (1), wherein the positioning columns (22) correspond to the positioning bosses (21) one by one, and the positioning columns (22) are provided at the center of the top of the corresponding positioning boss (21), and an extrusion boss (3) for reserving the screw head offset is also provided at a position near the positioning boss (21) at the bottom of the mold cavity of the forming die (1).

2. The vulcanization mold for the belt of the residual film recycling machine according to claim 1, characterized in that: The thickness of the screw head is 2.6 mm, and the height of the positioning boss (21) is 2.3-2.5 mm.

3. The vulcanization mold for the belt of the residual film recycling machine according to claim 1, characterized in that: The extrusion boss (3) is crescent-shaped and is arranged on opposite sides of the two positioning bosses (21), and a slope is arranged on the side of the extrusion boss (3) facing the positioning boss (21), the slope inclining from top to bottom towards the side close to the positioning boss (21).

4. The vulcanization mold for the belt of the residual film recycling machine according to claim 1, characterized in that: A cover plate (7) is arranged on the top of the molding die (1); a sealing gasket (71) is arranged on the side of the cover plate (7) facing the molding die (1); a plug-in groove (12) is provided on the top wall of the molding die (1) corresponding to the sealing gasket (71); the sealing gasket (71) is plug-fitted into the plug-in groove (12).

5. The vulcanization mold for the belt of the residual film recycling machine according to claim 4, characterized in that: The bottom of the molding die (1) is provided with an ejection mechanism (6) for ejecting the molding belt, the ejection mechanism (6) comprising a plurality of ejection rods (61) for ejecting the molding belt from the cavity and a lifting member (62) for driving the plurality of ejection rods (61) to rise and fall, the plurality of ejection rods (61) being arranged in an array at the bottom of the molding die (1) along the length direction of the molding die (1), and the plurality of ejection rods (61) all vertically slide through the bottom wall of the molding die (1) and extend to the inner bottom wall of the molding die (1).

6. The vulcanization mold for the belt of the residual film recycling machine according to claim 5, characterized in that: A support frame (4) is arranged below the forming mold (1), a circle of connecting strips (11) is arranged on the outer ring of the bottom of the forming mold (1), and the connecting strips (11) are connected to the top of the support frame (4) by bolts. The bottom ends of a plurality of ejector rods (61) are commonly connected to a connecting plate (5), and the connecting plate (5) is located inside the support frame (4), and the connecting plate (5) is arranged on the support frame (4) in a vertical sliding manner. The lifting member (62) includes a screw rod (621) arranged on the workbench (01) in a vertically rotatable manner and a sleeve (622) arranged at the bottom of the connecting plate (5) corresponding to the screw rod (621), and the sleeve (622) is arranged on the screw rod (621) by a threaded sleeve.

7. The vulcanization mold for the belt of the residual film recycling machine according to claim 6, characterized in that: A driven gear (9) is sleeved on the screw rod (621), a servo motor (8) is arranged on a workbench (01) located on one side of the screw rod (621), and a driving gear (81) meshing with the driven gear (9) is sleeved on the output shaft of the servo motor (8).

8. The vulcanization mold for the belt of the residual film recycling machine according to claim 4, characterized in that: A handle (72) is provided on the top of the cover plate (7).

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