Gas-assisted agricultural tool plastic structural part forming mold

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a gas-assisted agricultural tool plastic structural part forming mold which comprises a base, a lower mold body is arranged at the upper end of the base, an upper mold body is arranged at the upper end of the lower mold body, and ventilation micropores are formed in the lower mold body. An auxiliary air pump is fixedly installed in the lower die body, an air outlet pipe is arranged on the left side of the auxiliary air pump, an air inlet pipe is arranged on the right side of the auxiliary air pump, and the air inlet pipe is fixedly connected with the lower die body. Through the arrangement of the motor, the first gear and other structures, the second gear can be driven to rotate, under extrusion of the inner walls of the ventilation micropores, the blocking rod can be separated from the ventilation micropores, the ventilation micropores are automatically opened and closed, the problem of gas backflow is avoided, and the ventilation micropores are automatically opened and closed in cooperation with the suction effect of the auxiliary gas pump. Excess gas generated in the injection molding process can be exhausted.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a molding mold for a gas-assisted agricultural tool plastic structure. Background Art

[0002] As we all know, the molds for forming plastic structural parts of gas-assisted agricultural tools can be designed and manufactured according to the specific product shape and size. Generally speaking, such agricultural tool plastic structural parts are usually produced by injection molding using injection molds; among them, single-cavity injection molds: are suitable for making simple gas-assisted agricultural tool plastic structural parts, such as wrench handles, handles, etc. There is only one cavity in the mold for injecting molten plastic material. This mold has a simple structure and relatively low cost; while hot runner injection molds: are suitable for gas-assisted agricultural tool plastic structural parts that have high requirements on product appearance and size. Hot runner injection molds can control the plastic flow and cooling process to reduce product flaws and defects.

[0003] However, the existing gas-assisted agricultural tool plastic structural parts molding molds still have certain shortcomings: most of the existing gas-assisted agricultural tool plastic structural parts molding molds simply use straight-through air-permeable micropores to exhaust the gases generated during the injection molding process, and it is difficult to open and close the air-permeable micropores. Due to the influence of factors such as the pressure difference between the inside and outside of the mold, gas reflux problems will occur. Utility Model Content

[0004] The purpose of the utility model is to provide a gas-assisted agricultural tool plastic structural part molding mold, which solves the problem that the existing agricultural tool plastic structural part molding molds simply use straight-through air-permeable micropores to exhaust the gas generated during the injection molding process, and it is difficult to open and close the air-permeable micropores. Due to the influence of factors such as the pressure difference between the inside and outside of the mold, gas reflux may occur.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas-assisted agricultural tool plastic structural part molding mold, comprising a base, a lower mold body is arranged at the upper end of the base, an upper mold body is arranged at the upper end of the lower mold body, air-permeable micropores are opened inside the lower mold body, an auxiliary air pump is fixedly installed inside the lower mold body, an air outlet pipe is arranged on the left side of the auxiliary air pump, an air inlet pipe is arranged on the right side of the auxiliary air pump, the air inlet pipe is fixedly connected to the lower mold body, a fixed disk is fixedly connected to the inner wall of the air inlet pipe, a plurality of flow holes arranged in a circular array are opened on the surface of the fixed disk, a movable ring is slidably connected to the inner wall of the air inlet pipe and located on the left side of the fixed disk, a filter is fixedly connected to the inner side wall of the movable ring, a semicircular block is fixedly connected to the inner wall of the air inlet pipe, the semicircular block is in contact with the movable ring, and an opening and closing mechanism is arranged inside the lower mold body.

[0006] Preferably, an elastic member is welded to the right end of the movable ring, and the other end of the elastic member is welded to the fixed disk. By setting the elastic member, the movable ring can be connected for use.

[0007] Preferably, two semicircular blocks are provided, and the two semicircular blocks are symmetrically distributed on the air intake pipe. Through the provision of the semicircular blocks, the movable ring can be limited.

[0008] Preferably, a traction line is fixedly connected to the right end of the filter screen, and the traction line is slidably connected to the fixed plate. The setting of the traction line facilitates the filter screen to be pulled to move.

[0009] Preferably, the opening and closing mechanism includes a fixed plate, the interior of the lower mold body is fixedly connected with a fixed plate, the fixed plate is in contact with the base, a motor is fixedly installed on the upper end of the fixed plate, the output shaft of the motor is rotatably connected to the lower mold body, a gear 1 is fixedly sleeved on the outer side of the output shaft of the motor, a support shaft is installed inside the fixed plate through a bearing, the support shaft is rotatably connected to the lower mold body, a gear 2 is fixedly sleeved on the outer side of the support shaft, the gear 2 is meshed with the gear 1, a blocking rod is slidably connected to the interior of the gear 2, the blocking rod is slidably connected to the air-permeable micropores, a spring is arranged on the outer side of the blocking rod, and the output shaft is driven by the motor to rotate, so as to Drive gear one to rotate. In the meshing relationship, gear one can drive gear two to rotate when it rotates, so that gear two drives the supporting shaft to rotate to ensure the stable rotation of gear two. In this process, the inner wall of the air-permeable micropore squeezes the blocking rod to push the blocking rod downward, and the spring is deformed, which eventually causes the blocking rod to separate from the air-permeable micropore, thereby making the air-permeable micropore in an open state, exhausting the gas generated during the injection molding process, starting the auxiliary air pump, and sucking the air inside the lower mold body to improve the gas exhaust effect. Through the setting of the opening and closing mechanism, the air-permeable micropore can be automatically opened and closed to avoid the problem of gas backflow in the prior art.

[0010] Preferably, one end of the spring is welded to gear 2, and the other end of the spring is welded to a connecting plate of the blocking rod. By setting the spring, the blocking rod can be connected for use.

[0011] The beneficial effects of the utility model are as follows:

[0012] 1. The utility model can drive the gear 2 to rotate through the arrangement of the motor, the gear 1 and other structures. Under the extrusion of the inner wall of the air-permeable micropore, the blocking rod can be separated from the air-permeable micropore, and the air-permeable micropore can be automatically opened and closed to avoid the problem of gas reflux. In addition, with the suction effect of the auxiliary air pump, the excess gas generated during the injection molding process can be exhausted.

[0013] 2. The utility model can blow gas into the lower mold body by adjusting the suction direction of the auxiliary air pump, and eject the die-cast plastic structural parts of the agricultural tools, which is convenient for operators to take materials and use. Under the action of the filter, impurities can be filtered out. Under the action of the traction line, elastic parts, semicircular blocks and other structures, the filter can be vibrated to clean the impurities to ensure the circulation effect of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 A front cross-sectional view of

[0016] Figure 3 For the utility model Figure 1 A cutaway perspective view of an intake pipe;

[0017] Figure 4 For the utility model Figure 3 Enlarged image of the filter.

[0018] In the figure: 1. base; 2. lower mold body; 3. upper mold body; 4. air permeable micropores; 5. auxiliary air pump; 6. outlet pipe; 7. inlet pipe; 71. fixed plate; 72. flow hole; 73. movable ring; 74. filter screen; 75. traction line; 76. elastic part; 77. semicircular block; 8. opening and closing mechanism; 81. fixed plate; 82. motor; 83. gear one; 84. support shaft; 85. gear two; 86. blocking rod; 87. spring. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1 , Figure 2 , Figure 3 , Figure 4A gas-assisted agricultural tool plastic structural part molding mold comprises a base 1, a lower mold body 2 is arranged at the upper end of the base 1, an upper mold body 3 is arranged at the upper end of the lower mold body 2, a ventilation micropore 4 is provided inside the lower mold body 2, an auxiliary air pump 5 is fixedly installed inside the lower mold body 2, an air outlet pipe 6 is provided on the left side of the auxiliary air pump 5, an air inlet pipe 7 is provided on the right side of the auxiliary air pump 5, the air inlet pipe 7 is fixedly connected to the lower mold body 2, a fixed plate 71 is fixedly connected to the inner wall of the air inlet pipe 7, a plurality of flow holes 72 arranged in a ring array are provided on the surface of the fixed plate 71, a movable ring 73 is slidably connected to the inner wall of the air inlet pipe 7 and located on the left side of the fixed plate 71, and the movable ring The inner wall of 73 is fixedly connected with a filter screen 74, and the right end of the filter screen 74 is fixedly connected with a traction line 75, which is slidably connected to the fixed disk 71. The setting of the traction line 75 facilitates the pulling of the filter screen 74 to move. An elastic member 76 is welded to the right end of the movable ring 73, and the other end of the elastic member 76 is welded to the fixed disk 71. The movable ring 73 can be connected and used through the setting of the elastic member 76. A semicircular block 77 is fixedly connected to the inner wall of the air intake pipe 7, and the semicircular block 77 is in contact with the movable ring 73. Two semicircular blocks 77 are provided, and the two semicircular blocks 77 are symmetrically distributed on the air intake pipe 7. The movable ring 73 can be limited by the setting of the semicircular blocks 77.

[0021] See also Figure 1 , Figure 2 , Figure 3, an opening and closing mechanism 8 is arranged inside the lower mold body 2, and the opening and closing mechanism 8 includes a fixed plate 81, and the lower mold body 2 is fixedly connected with the fixed plate 81, and the fixed plate 81 contacts with the base 1, and a motor 82 is fixedly installed on the upper end of the fixed plate 81, and the output shaft of the motor 82 is rotatably connected with the lower mold body 2, and a gear 1 83 is fixedly sleeved on the outer side of the output shaft of the motor 82, and a support shaft 84 is installed inside the fixed plate 81 through a bearing, and the support shaft 84 is rotatably connected with the lower mold body 2, and a gear 2 85 is fixedly sleeved on the outer side of the support shaft 84, and the gear 2 85 meshes with the gear 1 83, and a blocking rod 86 is slidably connected inside the gear 2 85, and the blocking rod 86 is slidably connected with the breathable micropore 4, and a spring 87 is arranged on the outer side of the blocking rod 86, and one end of the spring 87 is welded to the gear 2 85, and the other end of the spring 87 is welded to the connecting plate of the blocking rod 86, through the spring 8 7 is set up, the blocking rod 86 can be connected for use, and the output shaft is driven by the motor 82 to rotate, so as to drive the gear 1 83 to rotate. Under the meshing relationship, the gear 1 83 can drive the gear 2 85 to rotate when it rotates, so that the gear 2 85 drives the support shaft 84 to rotate, so as to ensure the stable rotation of the gear 2 85. During this process, the inner wall of the air-permeable micropore 4 squeezes the blocking rod 86 to push the blocking rod 86 downward, and the spring 87 is deformed, so that the blocking rod 86 is finally separated from the air-permeable micropore 4, and then the air-permeable micropore 4 is in an open state, and the gas generated during the injection molding process is exhausted, and the auxiliary air pump 5 is started to suck the air inside the lower mold body 2 to improve the gas exhaust effect. Through the setting of the opening and closing mechanism 8, the air-permeable micropore 4 can be automatically opened and closed to avoid the problem of gas backflow in the prior art.

[0022] The specific implementation process of the utility model is as follows: when it is necessary to use the gas-assisted agricultural tool plastic structural part molding mold, start the motor 82 to drive the output shaft to rotate, so as to drive the gear 1 83 to rotate. Under the meshing relationship, the gear 1 83 can drive the gear 2 85 to rotate when rotating, so that the gear 2 85 drives the support shaft 84 to rotate, so as to ensure the stable rotation of the gear 2 85. In this process, the inner wall of the air-permeable micropore 4 squeezes the blocking rod 86 to push the blocking rod 86 downward, and the spring 87 is deformed, so that the blocking rod 86 is finally separated from the air-permeable micropore 4, so that the air-permeable micropore 4 is in an open state, and the gas generated during the injection molding process is exhausted, and the auxiliary air pump 5 is started to suck the air inside the lower mold body 2 to improve the gas exhaust effect. Through the setting of the opening and closing mechanism 8, the air-permeable micropore 4 can be automatically opened and closed to avoid the problem of gas backflow in the prior art.

[0023] After the plastic structural part of the agricultural tool is formed, the suction direction of the auxiliary air pump 5 is adjusted to draw outside air into the lower mold body 2, and then the plastic structural part of the agricultural tool is ejected, which is convenient for the operator to take the material and use it. In this process, the dust and other impurities in the air can be filtered out by setting the filter screen 74, and the traction line 75 can be pulled to move to the right to drive the filter screen 74 to move, and then drive the moving ring 73 to move. Under the action of the fixed plate 71, the elastic member 76 is deformed, and then the traction line 75 is released to allow the elastic member 76 to restore the deformation, so as to push the moving ring 73 to move to the left, and then drive the filter screen 74 to move, so that the moving ring 73 and the semicircular block 77 collide with each other. Under the action of force, the moving ring 73 can drive the filter screen 74 to oscillate, and then the impurities attached to the filter screen 74 are cleaned to ensure the circulation effect of the filter screen 74.

[0024] 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 gas-assisted agricultural tool plastic structural component forming mold, comprising a base (1), characterized in that: A lower mold body (2) is arranged at the upper end of the base (1), an upper mold body (3) is arranged at the upper end of the lower mold body (2), a ventilation micropore (4) is opened inside the lower mold body (2), an auxiliary air pump (5) is fixedly installed inside the lower mold body (2), an air outlet pipe (6) is arranged on the left side of the auxiliary air pump (5), an air inlet pipe (7) is arranged on the right side of the auxiliary air pump (5), the air inlet pipe (7) is fixedly connected to the lower mold body (2), and the inner wall of the air inlet pipe (7) is fixedly connected to the lower mold body (2). A fixed plate (71) is connected, and a plurality of flow holes (72) arranged in a circular array are provided on the surface of the fixed plate (71); a movable ring (73) is slidably connected to the inner wall of the air inlet pipe (7) and located on the left side of the fixed plate (71); a filter screen (74) is fixedly connected to the inner wall of the movable ring (73); a semicircular block (77) is fixedly connected to the inner wall of the air inlet pipe (7); the semicircular block (77) is in contact with the movable ring (73); and an opening and closing mechanism (8) is provided inside the lower mold body (2).

2. A gas-assisted agricultural tool plastic structural component forming mold according to claim 1, characterized in that: An elastic member (76) is welded to the right end of the movable ring (73), and the other end of the elastic member (76) is welded to the fixed plate (71).

3. The gas-assisted agricultural tool plastic structural component forming mold according to claim 1, characterized in that: Two semicircular blocks (77) are provided, and the two semicircular blocks (77) are symmetrically distributed on the air intake pipe (7).

4. The gas-assisted agricultural tool plastic structural component forming mold according to claim 1, characterized in that: The right end of the filter screen (74) is fixedly connected with a traction line (75), and the traction line (75) is slidably connected to the fixed plate (71).

5. The gas-assisted agricultural tool plastic structural component forming mold according to claim 1, characterized in that: The opening and closing mechanism (8) includes a fixed plate (81), the interior of the lower mold body (2) is fixedly connected with the fixed plate (81), the fixed plate (81) is in contact with the base (1), the upper end of the fixed plate (81) is fixedly installed with a motor (82), the output shaft of the motor (82) is rotatably connected to the lower mold body (2), the outer side of the output shaft of the motor (82) is fixedly sleeved with a gear one (83), the interior of the fixed plate (81) is installed with a support shaft (84) through a bearing, the support shaft (84) is rotatably connected to the lower mold body (2), the outer side of the support shaft (84) is fixedly sleeved with a gear two (85), the gear two (85) is meshed with the gear one (83), the interior of the gear two (85) is slidably connected with a blocking rod (86), the blocking rod (86) is slidably connected to the air permeable micropores (4), and a spring (87) is provided on the outer side of the blocking rod (86).

6. A gas-assisted agricultural tool plastic structural component forming mold according to claim 5, characterized in that: One end of the spring (87) is welded to the second gear (85), and the other end of the spring (87) is welded to the connecting plate of the blocking rod (86).

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