Small-modulus injection molded gear production device and production process therefor

Abstract

The present invention relates to the field of injection molded gear production, and provides a small-modulus injection molded gear production device and a production process therefor. The small-modulus injection molded gear production device comprises a workbench, a supporting disc, manufacturing plates, and clamping plates. Four vertical fixing rods are fixedly arranged on the upper end face of the workbench. The fixing rods are annularly arranged. According to the present invention, a gear ring sample of a small-modulus gear is formed by means of simulation. In this case, a worker can perform reference comparison on a simulated model and a required small-modulus gear, and manufacture an injection mold according to model sand after measuring whether process requirements are met or not, so as to reduce the production error of a gear. According to the present invention, after a sample gear is produced, the sample gear is taken out to be compared with a simulated gear of the model sand, so that production workers can conveniently carry out gear contrast comparison, the process problem or the gear problem can be found in time, the subsequent production loss is reduced, and furthermore, small-modulus injection molded gears required are correctly produced.

Description

Small-module injection-molded gear production equipment and production process Technical Field

[0001] The present invention relates to the technical field of injection molded gear production, in particular to small-module injection molded gear production equipment and a production process thereof. Background Art

[0002] The main processing method for small module gears is injection molding. During injection molding, plastic small module gears must go through three steps: heating and melting engineering plastics, liquid plastic flow molding, and cooling and solidification in the mold cavity.

[0003] For example, a Chinese patent discloses "An Injection Molding Device and Injection Molding Method for Automotive Injection Molded Gears" (Patent No.: CN202211361468.4). This patent includes a base, a discharge mechanism disposed above the base, and multiple cooling molding mechanisms disposed above the discharge mechanism for cooling the gears. The multiple cooling molding mechanisms are evenly spaced, and a drive mechanism is disposed on one side of the cooling molding mechanism for placing the gears cooled on the cooling molding mechanism onto the discharge mechanism. The drive mechanism includes a side plate, a motor, and a turntable. The side plate is fixedly connected to the base, and a turntable is rotatably connected to the side plate. A motor for driving the turntable to rotate is mounted on the side plate. With the drive mechanism, this injection molding device for automotive injection molded gears can drop all the gears on the cooling molding mechanism into the discharge mechanism simply by controlling the turntable to rotate once through the motor, thereby enabling rapid discharge and greatly improving efficiency.

[0004] However, the above-mentioned injection molding method for gears is mainly to improve efficiency by quickly discharging the material. For the production of small-module injection molding gears, before injection molding, the gear model must be compared with the actual gear to be produced. Only when the model and the finished product are in good agreement can production begin. In addition, small-module injection molding gears are difficult to compare due to their small module and high precision, which affects production efficiency. Technical issues

[0005] In view of the deficiencies in the prior art, the present invention provides a small-module injection molded gear production device and a production process thereof, which solves the problems raised in the above-mentioned background technology. Technical Solutions

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a small-modulus injection molded gear production equipment and its production process, including a workbench, a support plate, a production plate and a clamping plate, the upper end surface of the workbench is fixed with four vertical fixing rods, the fixing rods are arranged in a ring, a lifting cavity with an opening upward is provided in the fixing rod, a lifting support rod that can move up and down is provided in the lifting cavity, the support plate is fixed on the upper end surface of the lifting support rod, the support plate is in a circular ring shape, a ring-shaped annular guide plate is fixed on the upper end surface of the support plate, a guide groove with an opening upward is provided in the annular guide plate, two movable movable rotating rods are provided in the guide groove, the movable rotating rods on both sides are symmetrically positioned, and the movable rotating rods on The end face is installed with a rotating support plate, and a circular connecting ring is fixed between the rotating support plates on both sides. A detachable support rod is installed in the connecting ring. The lower end face of the support rod can be respectively installed with a detachable simulation plate and a mold support plate. A detector is fixed on the lower end face of the simulation plate. Two adjusting rods are movable on the lower end face of the simulation plate. The positions of the adjusting rods on both sides are symmetrical. The production plate is fixed on the lower end face of the adjusting rod. An injection mold is installed on the lower end of the mold support plate. Injection tubes are connected on both sides of the injection mold. Four fixed plates are fixed on the end face of the workbench. The fixed plates on four sides are arranged in a ring. The clamping plate is provided on the side where the fixed plates are close to each other, and the clamping plate can move.

[0007] Preferably, a telescopic slot with an inward opening is provided in the fixed plate, a telescopic connecting rod that can be telescopically moved is provided in the telescopic slot, one end face of the telescopic connecting rod extends outward and is fixedly connected to the clamping plate, and the clamping plate is arc-shaped.

[0008] Preferably, a lifting threaded shaft is rotatably provided on the lower wall of the lifting chamber, and the lifting threaded shaft is threadedly connected to the lifting support rod.

[0009] Preferably, a lifting motor is fixedly provided in the lower wall of the lifting chamber, and the lower end of the lifting threaded shaft is connected to the lifting motor in a power connection.

[0010] Preferably, two detachable simulation sand trays and an injection molder can be installed on the upper end surface of the simulation sand tray, and model sand is provided on the upper end of the simulation sand tray.

[0011] Preferably, four support rods are fixedly connected to the lower end surface of the workbench, and the four support rods are arranged in a ring. Two support grooves with outward openings are provided on both sides of the support rods, and lifting connecting rods that can move up and down are provided in the support grooves.

[0012] Preferably, the lower end surfaces of the lifting links on both sides extend downward and are fixedly connected to a support base plate, and a shock-absorbing spring is fixedly connected between the upper end surface of the support base plate and the support rod.

[0013] Preferably, the lower end surface of the mounting plate is provided with two symmetrically positioned movable cavities with downward openings, the movable cavities on both sides are symmetrically positioned, a movable threaded shaft is rotatably provided between the two walls in the movable cavity, a movable movable support plate is provided in the movable cavity, the movable support plate is threadedly connected to the movable threaded shaft, and the adjusting rod is fixedly connected to the lower end of the movable support plate.

[0014] A small-module injection molded gear production device and a production process thereof, comprising the following steps:

[0015] Step one: first move the workbench to a suitable working position, and then use the support base to provide stable support to the ground. Then, control the lifting assembly inside the support slot, and then use the lifting assembly to drive the lifting link to move up and down, and then use the lifting and moving support to change the height of the workbench. By changing the height of the workbench, subsequent work will be facilitated, and the shock-absorbing spring will provide a shock-absorbing support effect.

[0016] Step 2: Install the simulation sandbox to the upper end of the workbench, and drive the telescopic connecting rod to move telescopically through the telescopic component in the fixed plate, thereby driving the clamping plate to move telescopically, and by driving the clamping plate to move and stably clamp the bottom of the simulation sandbox, thereby improving the stability of the simulation sandbox. When the simulation sandbox is stably placed, fill the simulation sandbox with model sand. At this time, according to the parameters of the small module gears to be produced, first, by changing the number and specifications of the model teeth installed on the arc surface of the production plate, the outer tooth profile shape of the small module gear to be produced is constructed, and by changing the curvature of the production plate, the parameters of the small module gear are adapted. At the same time, the mobile motor is controlled to start and rotate, and then the mobile threaded shaft is driven to move by the threaded connection between the mobile threaded shaft and the mobile support plate, thereby changing the spacing between the production plates on both sides.

[0017] Step three, at this time, the lifting motor is started to drive the lifting threaded shaft to rotate, and then the lifting threaded shaft is threadedly connected to the lifting support rod to drive the lifting support rod to move downward, and then the production plate is driven to move downward, and the model sand on the surface of the simulation sandbox is removed by pressing down. Then the lifting motor is reversed and reset, and in this process, the moving assembly of the annular guide plate is used to drive the moving rod to move along the guide groove, and then the rotating support plate is driven to rotate, and the mounting plate is driven to rotate, and then the production plate is driven to rotate in the direction of rotation. After rotating a certain angle, the lifting motor is started and continues to press down, and then a small module gear ring sample is formed through repeated pressing. At this time, the staff can compare the simulated model with the required small module gear, and after measuring whether it meets the process requirements, make an injection mold according to the model sand.

[0018] Step 4. After disassembling the simulation sand table, reinstall the injection molder to the upper end face of the workbench, and re-move and fix the injection molder through the clamping plate. At the same time, disassemble the simulation plate at the lower end of the connecting ring and replace it with a mold support plate, and install the prepared injection mold to the lower end of the mold support plate, and perform actual sample small-module gear injection molding. After the sample gear is produced, take out the sample gear and compare it with the simulated gear in the model sand, which makes it convenient for production workers to compare the gears, and can timely discover process problems or gear problems, reducing subsequent production losses.

[0019] Step 5: When the sample and the model are compared and meet the production requirements, the inspection of the injection mold is completed, and the subsequent small-module injection molded gear production can begin. Beneficial effects

[0020] The present invention provides a small-module injection molded gear production device and a production process thereof. It has the following beneficial effects:

[0021] 1. The present invention forms a ring gear sample of a small module gear through simulation. At this time, the staff can compare the simulated model with the required small module gear, and measure whether it meets the process requirements. Then, the injection mold is made according to the model sand, thereby reducing the production error of the gear.

[0022] 2. After the sample gear is produced, the present invention takes out the sample gear and compares it with the simulated gear made of model sand, thereby facilitating the production workers to compare the gears, thereby being able to promptly discover process problems or gear problems, reducing subsequent production losses, and further facilitating the correct production of small-module injection molded gears required by the production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic diagram of the appearance structure of the present invention;

[0024] FIG2 is a schematic diagram of the appearance structure of the present invention;

[0025] FIG3 is a front view of the appearance structure of the present invention;

[0026] FIG4 is a cross-sectional view taken along the AA direction in FIG3 of the present invention;

[0027] FIG5 is a bottom view of the appearance structure of the present invention;

[0028] FIG6 is a schematic diagram of the injection molding working state of the present invention;

[0029] FIG7 is a front view of FIG6 of the present invention in working state;

[0030] FIG8 is an enlarged structural diagram of the clamping plate component in FIG1 of the present invention;

[0031] FIG. 9 is an enlarged structural diagram of the rotating support plate component in FIG. 6 of the present invention.

[0032] In the figure: 101, workbench; 102, simulation sand table; 103, support base; 104, shock-absorbing spring; 105, lifting connecting rod; 106, support rod; 107, fixed plate; 108, fixed rod; 109, support plate; 111, lifting support rod; 112, movable rotating rod; 114, rotating support plate; 115, connecting ring; 116, mounting plate; 117, adjusting rod; 118, production plate; 120, ring guide ; 122. Simulation board; 123. Lifting threaded shaft; 124. Lifting chamber; 125. Lifting motor; 126. Clamping plate; 127. Guide groove; 128. Mold support plate; 129. Injection tube; 130. Injection mold; 131. Telescopic groove; 132. Telescopic connecting rod; 133. Detector; 134. Injection molder; 135. Support groove; 136. Moving support plate; 137. Moving threaded shaft; 138. Moving chamber. Best Mode for Carrying Out the Invention

[0033] The embodiment of the present invention provides a small-module injection molded gear production equipment and a production process thereof, as shown in Figures 1-9, comprising a workbench 101, a support plate 109, a production plate 118 and a clamping plate 126. Four vertical fixed rods 108 are fixedly provided on the upper end surface of the workbench 101. The fixed rods 108 are arranged in a ring. A lifting cavity 124 with an opening facing upward is provided in the fixed rod 108. A lifting support rod 111 that can move up and down is provided in the lifting cavity 124. The support plate 109 is fixedly provided on the upper end surface of the lifting support rod 111. The support plate 109 is in a circular ring shape. A ring-shaped annular guide plate 120 is fixedly provided on the upper end surface of the support plate 109. A guide groove 127 with an opening facing upward is provided in the annular guide plate 120. Two movable movable rotating rods 112 are provided in the guide groove 127. The movable rotating rods 112 on both sides are symmetrically positioned. There is a rotating support plate 114, and a circular connecting ring 115 is fixed between the rotating support plates 114 on both sides. A detachable support rod 106 is installed in the connecting ring 115. The lower end surface of the support rod 106 can be respectively installed with a detachable simulation plate 122 and a mold support plate 128. A detector 133 is fixed on the lower end surface of the simulation plate 122. Two adjusting rods 117 are movable on the lower end surface of the simulation plate 122. The adjusting rods 117 on both sides are symmetrically positioned. The production plate 118 is fixed on the lower end surface of the adjusting rod 117. An injection mold 130 is installed on the lower end of the mold support plate 128. An injection tube 129 is connected on both sides of the injection mold 130. Four fixed plates 107 are fixed on the upper end surface of the workbench 101. The four side fixed plates 107 are arranged in a ring. The clamping plate 126 is arranged on the side where the fixed plates 107 are close to each other, and the clamping plate 126 can move.

[0034] It is worth noting that the production plate 118 is elastic, and the inner arc surface of the production plate 118 is provided with detachable model teeth. The annular guide plate 120 is provided with a moving component of the existing technology center, and the moving component can drive the moving rotating rod 112 to move along the guide groove 127.

[0035] As shown in FIG7 , a telescopic slot 131 opening inward is provided in the fixed plate 107 , a telescopic connecting rod 132 that can be telescopically moved is provided in the telescopic slot 131 , one end face of the telescopic connecting rod 132 extends outward and is fixedly connected to the clamping plate 126 , and the clamping plate 126 is arc-shaped.

[0036] It should be further explained that a telescopic assembly is provided in the fixing plate 107 , and the telescopic assembly can drive the telescopic connecting rod 132 to move telescopically, thereby driving the clamping plate 126 to move telescopically.

[0037] As shown in FIG. 4-FIG . 5 , a lifting threaded shaft 123 is rotatably provided on the lower wall of the lifting chamber 124 , and the lifting threaded shaft 123 is threadedly connected to the lifting support rod 111 .

[0038] Furthermore, a lifting motor 125 is fixedly provided in the lower wall of the lifting chamber 124 , and the lower end of the lifting threaded shaft 123 is power-connected to the lifting motor 125 .

[0039] When the lifting motor 125 is started, it can drive the lifting threaded shaft 123 to rotate, and then the lifting threaded shaft 123 is rotated to be threadedly connected to the lifting support rod 111, driving the lifting support rod 111 to move up and down.

[0040] As shown in FIG1 and FIG5 , two detachable simulation sand trays 102 and an injection molder 134 can be installed on the upper end surface of the simulation sand tray 102 , and model sand is provided on the upper end of the simulation sand tray 102 .

[0041] It should be noted that the injection molding device 134 is provided with an injection molding device in the prior art.

[0042] It should be noted that the injection mold 130 and the injection molding machine 134 are injection molding machines in the prior art.

[0043] As shown in Figures 3 and 4, four support rods 106 are fixedly connected to the lower end surface of the workbench 101. The four support rods 106 are arranged in a ring. Two support grooves 135 with outward openings are provided on both sides of the support rods 106. The support grooves 135 are provided with lifting connecting rods 105 that can move up and down.

[0044] Furthermore, the lower end surfaces of the lifting links 105 on both sides extend downward and are fixedly connected to the support base plate 103 , and the shock-absorbing spring 104 is fixedly connected between the upper end surface of the support base plate 103 and the support rod 106 .

[0045] It is worth noting that a lifting assembly is provided in the support groove 135 , and the lifting assembly can drive the lifting link 105 to move up and down.

[0046] As shown in Figure 5, the lower end surface of the mounting plate 116 is provided with two symmetrically positioned movable cavities 138 with downward openings. The movable cavities 138 on both sides are symmetrically positioned. A movable threaded shaft 137 is rotatably provided between the two walls of the movable cavity 138. A movable movable support plate 136 is provided in the movable cavity 138. The movable support plate 136 is threadedly connected to the movable threaded shaft 137, and the adjusting rod 117 is fixedly connected to the lower end of the movable support plate 136.

[0047] It should be specifically explained that a moving motor in the prior art is provided in the moving cavity 138 , and the moving threaded shaft 137 is power-connected to the moving motor.

[0048] A small-module injection molded gear production equipment and a production process thereof include the following steps:

[0049] Step one: first move the workbench 101 to a suitable working position, and then use the support base 103 to provide stable support to the ground. At this time, by controlling the lifting component inside the support groove 135, the lifting link 105 is driven up and down by the lifting component, and then the lifting and moving support is used to change the height of the workbench 101, thereby facilitating subsequent work and at the same time providing a shock-absorbing support effect through the shock-absorbing spring 104.

[0050] In step 2, the simulation sandbox 102 is installed to the upper end of the workbench 101, and the telescopic connecting rod 132 is driven to telescopically move through the telescopic component in the fixed plate 107, thereby driving the clamping plate 126 to telescopically move, and by driving the clamping plate 126 to move and stably clamp the bottom of the simulation sandbox 102, thereby improving the stable placement effect of the simulation sandbox 102. When the simulation sandbox 102 is stably placed, the simulation sandbox 102 is filled with model sand. At this time, according to the parameters of the small module gear to be produced as needed, first, by changing the number and specifications of the model teeth installed on the inner arc surface of the production plate 118, the outer tooth profile shape of the small module gear to be produced is constructed, and by changing the curvature of the production plate 118, the parameters of the small module gear are adapted. At the same time, by controlling the start-up of the mobile motor, the mobile threaded shaft 137 is driven to rotate, and then the mobile support plate 136 is driven to move by the threaded connection between the mobile threaded shaft 137 and the mobile support plate 136, thereby changing the distance between the production plates 118 on both sides.

[0051] In step three, the lifting motor 125 is started to drive the lifting threaded shaft 123 to rotate, and then the lifting threaded shaft 123 is threadedly connected to the lifting support rod 111 to drive the lifting support rod 111 to move downward, thereby driving the production plate 118 to move downward, and removing the model sand on the surface of the simulation sand table 102 by pressing down, and then the lifting motor 125 is reversed and reset, and in this process, the moving assembly of the annular guide plate 120 is used to drive the moving rotating rod 112 to move along the guide groove 127, and then drive the rotating support plate 114 to rotate, drive the mounting plate 116 to rotate, and then drive the production plate 118 to rotate direction, and after rotating a certain angle, as the lifting motor 125 is started, it continues to press down, and then through repeated pressing, a small module gear ring sample is formed. At this time, the staff can compare the simulated model with the required small module gear, and after measuring whether it meets the process requirements, make an injection mold according to the model sand.

[0052] Step 4. After disassembling the simulation sandbox 102, reinstall the injection molder 134 to the upper end surface of the workbench 101, and re-move and fix the injection molder 134 through the clamping plate 126. At the same time, disassemble the simulation plate 122 at the lower end of the connecting ring 115 and replace it with the mold support plate 128, and install the prepared injection mold to the lower end of the mold support plate 128, and perform actual injection molding of the sample small modulus gear. After the sample gear is produced, take out the sample gear and compare it with the simulated gear in the model sand, so as to facilitate the production workers to compare the gears, and timely discover process problems or gear problems, thereby reducing subsequent production losses.

[0053] Step 5: When the sample and the model are compared and meet the production requirements, the inspection of the injection mold is completed, and the subsequent small-module injection molded gear production can begin.

[0054] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A small modulus injection molded gear production device and a production process thereof, comprising a workbench (101), a support plate (109), a production plate (118) and a clamping plate (126), characterized in that: Four fixed rods (108) are fixedly provided on the upper end surface of the workbench (101), and the fixed rods (108) are arranged in a ring. A lifting cavity (124) opening upward is provided in the fixed rods (108), and a lifting support rod (111) is provided in the lifting cavity (124). The support plate (109) is fixedly provided on the upper end surface of the lifting support rod (111), and an annular guide plate (120) is fixedly provided on the upper end surface of the support plate (109). A guide groove (127) opening upward is provided in the annular guide plate (120), and two movable rotating rods (112) are provided in the guide groove (127). The movable rotating rods (112) on both sides are symmetrically positioned. A rotating support plate (114) is installed on the upper end surface of the movable rotating rod (112), and a connecting ring (115) is fixedly provided between the rotating support plates (114) on both sides. A support rod (106) is installed in the ring (115), and a simulation board (122) and a mold support plate (128) can be installed on the lower end surface of the support rod (106), respectively. A detector (133) is fixedly installed on the lower end surface of the simulation board (122), and two adjustment rods (117) are movably installed on the lower end surface of the simulation board (122), and the adjustment rods (117) on both sides are symmetrically positioned. The production plate (118) is fixedly arranged on the lower end surface of the adjustment rod (117), and an injection mold (130) is installed on the lower end of the mold support plate (128). Injection tubes (129) are connected to the two sides of the injection mold (130). Four fixed plates (107) are fixedly installed on the upper end surface of the workbench (101), and the fixed plates (107) on the four sides are arranged in a ring shape. The clamping plate (126) is arranged on the side of the fixed plates (107) close to each other.

2. The small modulus injection molded gear production equipment and production process according to claim 1, characterized in that: A telescopic groove (131) opening inwards is provided in the fixed plate (107), a telescopic connecting rod (132) is provided in the telescopic groove (131), and one end surface of the telescopic connecting rod (132) extends outwards and is fixedly connected to the clamping plate (126).

3. The small modulus injection molded gear production equipment and production process according to claim 2, characterized in that: A lifting threaded shaft (123) is rotatably provided on the lower wall of the lifting chamber (124), and the lifting threaded shaft (123) is threadedly connected to the lifting support rod (111).

4. The small modulus injection molded gear production equipment and production process according to claim 3, characterized in that: A lifting motor (125) is fixedly provided in the lower wall of the lifting chamber (124), and the lower end of the lifting threaded shaft (123) is power-connected to the lifting motor (125).

5. The small modulus injection molded gear production equipment and production process according to claim 4, characterized in that: Two simulation sand trays (102) and an injection molding device (134) can be respectively installed on the upper end surface of the simulation sand tray (102), and model sand is provided on the upper end of the simulation sand tray (102).

6. The small modulus injection molded gear production equipment and production process according to claim 5, characterized in that: Four support rods (106) are fixedly connected to the lower end surface of the workbench (101), and the four support rods (106) are arranged in a ring. Two support grooves (135) opening outward are provided on both sides of the support rods (106), and lifting connecting rods (105) are provided in the support grooves (135).

7. The small modulus injection molded gear production equipment and production process according to claim 6, characterized in that: The lower end surfaces of the lifting connecting rods (105) on both sides extend downward and are fixedly connected to a supporting base plate (103), and a shock absorbing spring (104) is fixedly connected between the upper end surface of the supporting base plate (103) and the supporting rod (106).

8. The small modulus injection molded gear production equipment and production process according to claim 7, characterized in that: The lower end surface of the mounting plate (116) is provided with two symmetrically positioned movable cavities (138) with openings facing downwards, the movable cavities (138) on both sides are symmetrically positioned, a movable threaded shaft (137) is rotatably provided between two walls in the movable cavity (138), a movable support plate (136) is provided in the movable cavity (138), the movable support plate (136) is threadedly connected to the movable threaded shaft (137), and the adjusting rod (117) is fixedly connected to the lower end of the movable support plate (136).

9. The small modulus injection molded gear production equipment and production process thereof according to claim 8 comprises the following steps, characterized in that: Step 1: First, the workbench (101) is driven to move to a suitable working position. At this time, the support base (103) provides a stable support for the ground. At this time, the lifting component inside the support groove (135) is controlled, and the lifting connecting rod (105) is driven to move up and down through the lifting component. Then, the lifting and moving support is used to change the height of the workbench (101). Then, by changing the height of the workbench (101), subsequent work is facilitated. At the same time, the shock-absorbing spring (104) provides a shock-absorbing support effect.

10. Step 2, install the simulation sand table (102) on the upper end of the workbench (101), and drive the telescopic connecting rod (132) to telescopically move through the telescopic assembly in the fixed plate (107), thereby driving the clamping plate (126) to telescopically move, and by driving the clamping plate (126) to move and stably clamp the bottom of the simulation sand table (102), thereby improving the stability of the simulation sand table (102). When the simulation sand table (102) is stably placed, fill the simulation sand table (102) with model sand, and then process according to needs. The parameters of the small module gear to be produced are firstly constructed by changing the number and specifications of the model teeth installed on the inner arc surface of the production plate (118), and the outer tooth profile shape of the small module gear to be produced is constructed. The curvature of the production plate (118) is changed to adapt to the parameters of the small module gear. At the same time, the moving motor is controlled to start the moving threaded shaft (137) to rotate, and then the moving support plate (136) is driven to move by the threaded connection between the moving threaded shaft (137) and the moving support plate (136), thereby changing the spacing between the production plates (118) on both sides.

11. Step three, at this time, the lifting motor (125) is started to drive the lifting threaded shaft (123) to rotate, and then the lifting threaded shaft (123) is threadedly connected to the lifting support rod (111) to drive the lifting support rod (111) to move downward, and then drive the production plate (118) to move downward, and remove the model sand on the surface of the simulation sand table (102) by pressing down, and then the lifting motor (125) is reversed and reset, and in this process, through the moving component of the annular guide plate (120), the moving rotating rod (112) is driven to move along the guide groove (127), and then by driving the rotating support plate (114) to rotate, the mounting plate (116) is driven to rotate, and then the production plate (118) is driven to rotate in a certain direction, and after rotating a certain angle, as the lifting motor (125) is started, it continues to press down, and then through repeated pressing, a small modulus gear ring sample is formed. At this time, the staff can compare the simulated model with the required small modulus gear, and after measuring whether it meets the process requirements, make an injection mold according to the model sand.

12. Step 4, after disassembling the simulation sand table (102), reinstall the injection molding machine (134) to the upper end surface of the workbench (101), and re-move and fix the injection molding machine (134) through the clamping plate (126), and at the same time, disassemble the simulation plate (122) at the lower end of the connecting ring (115) and replace it with the mold support plate (128), and install the prepared injection mold to the lower end of the mold support plate (128), and then perform actual sample small modulus gear injection molding. After the sample gear is produced, take out the sample gear and compare it with the simulated gear of the model sand, so as to facilitate the production workers to compare the gears, so as to timely discover process problems or gear problems and reduce subsequent production losses.

13. Step 5: When the sample and the model meet the production requirements, the inspection of the injection mold is completed, and then the subsequent small modulus injection molded gear production can be started.

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