Rubber injection molding machine with low operation table top and compact structure

Abstract

The invention discloses a rubber injection molding machine with a low operation table top and a compact structure. The rubber injection molding machine comprises a mold closing assembly and a mold closing driving assembly. The die assembling assembly is provided with an upper die plate, a plurality of tiebars, a lower die plate and a plunger oil cylinder, the upper die plate and the lower die plate are vertically installed on the tiebars, and the plunger oil cylinder is located at the bottom of the lower die plate; the mold closing driving assembly is provided with a moving end which is connected with the upper mold plate; the upper mold plate is driven by the moving end of the mold closing driving assembly to move downwards to close the lower mold plate, the upper mold plate is locked after mold closing, and pressurization of the lower mold plate is achieved under the action of the plunger oil cylinder. According to the rubber injection molding machine with the low operation table top and the compact structure, the working oil tank is small, no liquid filling pipe structure exists, and the structure is compact; the lower template, namely the movable template, is small in moving distance and stable in work; later maintenance is reliable, safe and continuous work can be achieved, and adaptability and universality are high; the problems that the working table top is high, the height of the whole machine is increased through the liquid filling pipe, and the occupied area is large are solved.

Description

Technical Field

[0001] The invention relates to an injection molding machine, in particular to a rubber injection molding machine with a low operating table and a compact structure. Background Art

[0002] The structure of the traditional rubber injection molding machine is mainly a lower mold clamping direct pressure structure. Two sets of fast mold clamping cylinders push the movable platen and plunger to a large displacement and require a large filling pipe to fill the liquid. After the mold is closed, the filling valve is closed, and then the high pressure is increased to realize the mold clamping and pressurization process. After the product is vulcanized, the filling valve is opened again, and the fast mold clamping cylinder quickly pulls the movable platen back to the lowest position. During the mold closing and opening process, a large amount of hydraulic oil is required to cooperate with the plunger lifting work, so it is also necessary to be equipped with a sufficiently large oil tank.

[0003] Traditional rubber injection molding machines have a two-step mold clamping structure, a high table, a high overall machine height, a large movable mold plate stroke, the product rack needs to be moved up synchronously, the moving stroke is large, the synchronization structure is complex, it is difficult to synchronize, and the cost is high; there are three-step mold clamping structures, which have complex structures and movements and are prone to problems during the working process; there are also upper-moving two-step and three-step mold clamping structures, which are difficult to maintain.

[0004] The work surface of the traditional rubber injection molding machine is too high, the oil tank needs to be large enough, the floor space is large, the filling pipe increases the height of the machine, and a large amount of hydraulic oil must be filled when opening and closing the mold. If the customer has requirements for the site area, height, work surface, etc., the traditional structure of the rubber injection molding machine cannot meet their needs.

[0005] Therefore, it is necessary to solve the above technical problems. Summary of the invention

[0006] In view of the above technical problems, the present invention provides a rubber injection molding machine with a low operating table and compact structure. The working oil tank is small and the structure is compact; the lower template, i.e., the movable template, moves a small distance and works stably; the later maintenance is reliable, the machine can work safely and continuously, and the machine has strong adaptability and versatility; the machine solves the problems of a high working table, a liquid filling pipe that increases the height of the whole machine, and a large footprint.

[0007] To achieve the above object, the technical solution of the present invention is: A rubber injection molding machine with a low operating table and compact structure, comprising a mold clamping assembly and a mold clamping drive assembly; the mold clamping assembly is provided with an upper mold plate, a plurality of coring columns, a lower mold plate and a plunger cylinder, the upper mold plate and the lower mold plate are respectively installed on the plurality of coring columns up and down, and the plunger cylinder is located at the bottom of the lower mold plate; the mold clamping drive assembly has a moving end connected to the upper mold plate; the upper mold plate is driven by the moving end of the mold clamping drive assembly to move toward the lower mold plate for mold clamping, and the upper mold plate is locked after mold clamping, and the lower mold plate is pressurized under the action of the plunger cylinder.

[0008] The upper template of the rubber injection molding machine with a low operating table and compact structure moves toward the lower template through the drive of the mold clamping drive assembly. After the mold is clamped, the upper template is locked, and the pressure is increased by the plunger cylinder at the bottom of the lower template, without the need for a separate filling pipe. In this way, the operating table of the structure is low, no table is needed, and the height of the whole machine is low; the moving template, that is, the lower template, has a small moving distance, and there is no need to make a large-stroke product rack, which saves costs and ensures stable equipment operation; the pressure increase and mold clamping are achieved by the plunger cylinder at the bottom of the lower template. Due to the small stroke, the amount of oil is small, and a small-volume oil tank can be used, and the whole machine occupies a small area; the plunger cylinder of the mold clamping is at the bottom of the lower template, and the oil tank is on the ground, which is convenient for maintenance and will not leak oil to the mold, ensuring the cleanliness of the produced products.

[0009] According to a further optimization scheme, the mold clamping drive assembly is a plurality of combined mold cylinders, the piston rod of the mold clamping cylinder is connected to the upper mold plate, and the cylinder body of the mold clamping cylinder is arranged on the cylinder body of the plunger cylinder. The movement of the upper mold plate is achieved through the mold clamping cylinder, which is stable and reliable.

[0010] A further optimization scheme also includes a mechanical lock component, which is provided with a mechanical lock and a locking cylinder. The mechanical lock is arranged on the two Corinthian columns, and each of the Corinthian columns is respectively provided with two clamping seats for clamping the Corinthian columns. The clamping seats are slidably arranged on the upper template. The two clamping seats on one of the Corinthian columns are staggeredly connected with the clamping seats on the other Corinthian column through a plurality of connecting rods. The piston rod of the locking cylinder is connected to one of the clamping seats, and its cylinder body is connected to two of the connecting rods. The piston rod of the locking cylinder moves back and forth to drive the two clamping seats on the two Corinthian columns to lock or release at the same time.

[0011] The mechanical lock component is composed of a locking cylinder driving a clamping seat to complete the locking and loosening of the coring column. Through the staggered connection of the connecting rod, two pairs of clamping seats can achieve the above actions through one locking cylinder. It has a simple structure, low cost, and stable and reliable action.

[0012] A further optimized solution further includes an auxiliary recovery cylinder assembly, whose cylinder body is connected to the cylinder body of the plunger cylinder, and whose piston rod is connected to the lower template. The function of the auxiliary recovery cylinder assembly is to prevent the plunger cylinder from being unable to return to its position smoothly due to insufficient gravity when opening the mold, thereby providing an auxiliary pulling force.

[0013] Further optimization scheme, the lower template is provided with a support plate, the support plate is provided with a hot plate assembly, the hot plate assembly is provided with a first lower mold and a second lower mold in parallel; the upper template is provided with an upper mold, the first lower mold and the second lower mold move back and forth to respectively realize the mold opening and closing action with the upper mold. The hot plate assembly has two sets of lower molds, the first lower mold and the second lower mold, which respectively realize the mold opening and closing action with the upper mold in a cycle, and the double-station cycle operation, the equipment is not idle, and the work efficiency is improved; during the entire mold opening and closing process, the lower mold is in a suitable lower position, so that the labor intensity of the staff is low and the operation is more convenient.

[0014] A further optimized solution also includes a mold-shifting cylinder, which is connected to the lower mold plate and pushes the first lower mold and the second lower mold to align with the upper mold. After the mold is opened, the mold-shifting cylinder pushes the first lower mold on the pallet that has just been opened and is in the center position to move outward, and the second lower mold on the pallet moves to the original position of the first lower mold. At this time, it is in a mold-closing state, and the mold-closing action can be repeated; after the mold is closed, the vulcanized product on the removed first lower mold can be taken out, and after the product is taken out and the mold is cleaned, the first lower mold is in a state to be molded; when the next mold opening is completed, the mold-shifting cylinder retracts, and the first lower mold is pulled to the original center position; this cycle is repeated.

[0015] A further optimized solution further includes a shooting platform component and a base assembly, wherein the shooting platform component is arranged on the upper mold plate, and the mold clamping assembly is arranged on the base assembly. The shooting platform component is plasticized and injected to inject the rubber into the cold runner and the mold cavity.

[0016] The further optimized solution also includes an oil tank, power components and electronic control components arranged at the rear of the base assembly. The oil tank is provided with a warm oil component that provides warm oil cooling for the cold runner and the oil temperature of the shooting platform. The power component provides hydraulic power, and the electronic control component controls the operation of the equipment. The oil tank is on the ground, which is convenient for maintenance and will not leak oil onto the mold, ensuring the cleanliness of the produced products. The power component and the electronic control component are fixed on the rear part of the base assembly. The power component provides sufficient hydraulic power to the machine, and the electronic control component provides reliable control for the system. The oil tank is equipped with a warm oil component that provides warm oil cooling for the cold runner and the oil temperature of the shooting platform.

[0017] Further optimization plans also include door assemblies around the sides and back of the work area, with a grating protection area at the front; an exhaust system is installed on the top of the equipment to exhaust the exhaust gas out of the work area. The work area is equipped with door assemblies around the sides and back of the work area, with a grating protection area at the front to ensure the safety of the workers when the work area is running; the top of the machine is an exhaust system that can exhaust the exhaust gas generated during production out of the workshop work area and transport the exhaust gas to the exhaust gas treatment center for treatment through pipes.

[0018] A further optimized solution also includes a movable operation panel connected to the electric control component signal. The operation panel is movable and can be placed in a suitable position according to actual needs.

[0019] Compared with the prior art, the present invention has the following technical advantages: 1. The upper template of the rubber injection molding machine with a low operating table and compact structure moves toward the lower template through the drive of the mold closing drive assembly. After the mold is closed, the upper template is locked, and the pressure is increased by the plunger cylinder at the bottom of the lower template. No separate filling pipe is required. In this way, the operating table of the structure is low, no table is required, the height of the whole machine is low, and the structure is compact; 2. The movable template of the rubber injection molding machine with a low operating table and compact structure has a small moving distance, that is, the lower template only needs to move the booster stroke, and there is no need to make a long-stroke product rack, which saves costs and ensures stable equipment operation; 3. The pressurization and clamping of this rubber injection molding machine with a low operating table and compact structure are realized by the plunger cylinder at the bottom of the lower mold plate. Due to the small stroke, the amount of oil added is small, and a small oil tank can be used, and the whole machine occupies a small area; the plunger cylinder of the clamping mold is at the bottom of the lower mold plate, and the oil tank is on the ground, which is convenient for maintenance and will not leak oil to the mold, ensuring the cleanliness of the produced products; 4. The mechanical lock component of the rubber injection molding machine with a low operating table and compact structure is composed of a locking cylinder driving a mechanical lock composed of a clamping seat to complete the action of locking and loosening the coring column. Through the staggered connection of the connecting rod, two pairs of clamping seats can achieve the above action through one locking cylinder. It has a simple structure, low cost, and stable and reliable action. 5. The hot plate assembly of the rubber injection molding machine with a low operating table and compact structure has two sets of lower molds, namely the first lower mold and the second lower mold. The two sets of lower molds are circulated with the upper mold to realize the opening and closing of the molds. The double-station cyclic operation keeps the equipment from being idle, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of a specific embodiment of the rubber injection molding machine with a low operating table and compact structure of the present invention; Figure 2 yes Figure 1 The main view of Figure 3 yes Figure 2 A top view of Figure 4 yes Figure 1 A three-dimensional view of the middle mold assembly; Figure 5 yes Figure 4 The enlarged view of the mechanical lock part at X; Figure 6 yes Figure 4 Installation of the middle clamping assembly and the base assembly and a partial enlarged view of the Y position; Figure 7 yes Figure 4 The main view of Figure 8 yes Figure 7 AA section view; Fig. 9 yes Figure 7 A top view of Fig.10 yes Figure 8 A partial enlarged view of point B in the middle; Fig.11 yes Figure 8 A partial enlarged view of point C in the middle; Fig.12 yes Figure 4 A three-dimensional diagram of the upper and lower templates and related parts; Fig.13 yes Fig.12 The enlarged view of the part where the middle clamping cylinder is connected to the upper mold plate, i.e. D; Fig.14 yes Fig.12 A partial enlarged view of the auxiliary recovery cylinder assembly, i.e., point E; Fig.15 yes Fig.12 The main view of Fig.16 yes Fig.15 Left view of Fig.17 yes Fig.15 A top view of Fig.18 yes Fig.15 A partial enlarged view of point F in the middle.

[0021] In the figure: shooting platform component 1, hot plate assembly 2, mold clamping assembly 3, mechanical lock component 4, power component 5, electronic control component 6, warm oil assembly 7, base assembly 8, door assembly 9, exhaust system 10, mold clamping drive assembly 11, mold clamping cylinder 11a, auxiliary recovery cylinder assembly 12, operation panel 13, mold shifting cylinder 14, support plate 15, oil tank 16, first lower mold 21, second lower mold 22, upper mold 23, upper template 31, Golin column 32, lower template 33, plunger cylinder 34, mechanical lock 41, locking cylinder 42, holding seat 43, connecting rod 44, base 81, base sealing plate 82. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the embodiments in the accompanying drawings.

[0023] like Figures 1 to 18 As shown, a specific embodiment of the rubber injection molding machine with a low operating table and compact structure of the present invention.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the rubber injection molding machine with a low operating table and compact structure of this embodiment includes a mold clamping assembly 3 and a mold clamping drive assembly 11; the mold clamping assembly 3 is provided with an upper mold plate 31, four Corinthian columns 32, a lower mold plate 33 and a plunger cylinder 34, the upper mold plate 31 and the lower mold plate 33 are respectively installed on the four Corinthian columns 32, and the plunger cylinder 34 is located at the bottom of the lower mold plate 33; the mold clamping drive assembly 11 has a moving end, which is connected to the upper mold plate 31; the upper mold plate 31 is driven by the moving end of the mold clamping drive assembly 11 to move to the lower mold plate 33 for mold clamping, and the upper mold plate 31 is locked after mold clamping, and the lower mold plate 33 is pressurized under the action of the plunger cylinder 34.

[0025] The upper template of the rubber injection molding machine with a low operating table and compact structure moves toward the lower template through the drive of the mold clamping drive assembly. After the mold is clamped, the upper template is locked, and the pressure is increased by the plunger cylinder at the bottom of the lower template, without the need for a separate filling pipe. In this way, the operating table of the structure is low, no table is needed, and the height of the whole machine is low; the moving template, that is, the lower template, has a small moving distance, and there is no need to make a large-stroke product rack, which saves costs and ensures stable equipment operation; the pressure increase and mold clamping are achieved by the plunger cylinder at the bottom of the lower template. Due to the small stroke, the amount of oil is small, and a small-volume oil tank can be used, and the whole machine occupies a small area; the plunger cylinder of the mold clamping is at the bottom of the lower template, and the oil tank is on the ground, which is convenient for maintenance and will not leak oil to the mold, ensuring the cleanliness of the produced products.

[0026] like Fig.12 , Fig.15 and Fig.17 As shown, the mold clamping drive assembly 11 is a four-combination mold cylinder 11a. Fig.13 As shown, the piston rod of the mold clamping cylinder 11a is connected to the upper mold plate 31, and the cylinder body of the mold clamping cylinder 11a is arranged on the cylinder body of the plunger cylinder 34. The movement of the upper mold plate is realized by the mold clamping cylinder, which is stable and reliable.

[0027] like Figure 5 , Fig.12 and Fig.17As shown, the rubber injection molding machine with a low operating table and compact structure of this embodiment also includes a mechanical lock component 4, which is provided with a mechanical lock 41 and a locking cylinder 42. The mechanical lock 41 is arranged on two Corinthian columns 32, and each Corinthian column 32 is respectively provided with two holding seats 43 for holding the Corinthian columns 32. The holding seats 43 are slidably arranged on the upper template 31. The two holding seats 43 on one Corinthian column 32 are staggeredly connected with the holding seats 43 on the other Corinthian column 32 through a plurality of connecting rods 44. The piston rod of the locking cylinder 42 is connected to one of the holding seats 43, and its cylinder body is connected to two of the connecting rods 44. The piston rod of the locking cylinder 42 moves back and forth, driving the two holding seats 43 on the two Corinthian columns 32 to lock or release at the same time. The two holding seats 43 and the Corinthian columns 32 can also be provided with mutually matching spiral teeth, so that the holding seats 43 and the Corinthian columns 32 can be locked more firmly.

[0028] like Fig.12 As shown, the mechanical lock component 4 is composed of two sets, corresponding to four or two groups of coring columns 32. The mechanical lock component 4 is composed of a locking cylinder 42 driving a mechanical lock 41 composed of a clamping seat 43 to complete the action of locking and loosening the coring column 32. The staggered connection of the connecting rod 44 enables the two pairs of clamping seats 43 to achieve the above-mentioned action through one locking cylinder 42, which has a simple structure, low cost, and stable and reliable action.

[0029] like Figure 1 , Fig.12 and Fig.14 As shown, the rubber injection molding machine with a low operating table and compact structure in this embodiment further includes an auxiliary recovery cylinder assembly 12, which is symmetrically arranged on both sides of the lower mold plate 33, and its cylinder body is connected to the cylinder body of the plunger cylinder 34, and its piston rod is connected to the lower mold plate 33. The function of the auxiliary recovery cylinder assembly 12 is to prevent the plunger cylinder 34 from being unable to return to its position smoothly due to insufficient gravity when opening the mold, thereby providing an auxiliary pulling force.

[0030] like Figure 4 , Figure 7 and Fig. 9 As shown, a support plate 15 is provided on the lower template 33, a hot plate assembly 2 is provided on the support plate 15, and a first lower mold 21 and a second lower mold 22 are arranged in parallel on the hot plate assembly 2; an upper mold 23 is provided on the upper template 31, and the first lower mold 21 and the second lower mold 22 move back and forth to respectively realize the mold opening and closing action with the upper mold 23. The hot plate assembly 2 has two sets of lower molds, the first lower mold 21 and the second lower mold 22, which respectively realize the mold opening and closing action with the upper mold 23 in a cycle, and the double-station cycle operation does not idle the equipment, thereby improving the work efficiency; during the entire mold opening and closing process, the lower mold is in a suitable lower position, so that the labor intensity of the staff is low when working, and the operation is more convenient.

[0031] like Figure 7As shown, the rubber injection molding machine with a low operating table and compact structure in this embodiment also includes two sets of mold shifting cylinders 14, which are symmetrically connected to the lower mold plate 33, and push the first lower mold 21 and the second lower mold 22 to align with the upper mold 23. After the mold is opened, the mold shifting cylinder 14 pushes the first lower mold 21 on the support plate 15, which is at the center position and has just been opened, to move outward, and the second lower mold 22 on the support plate 15 moves to the original position of the first lower mold 21, and is now in a mold-closing state, and the mold-closing action can be repeated; after the mold is closed, the vulcanized product on the removed first lower mold 21 can be taken out, and after the product is taken out and the mold is cleaned, the first lower mold 21 is in a state to be molded; when the next mold opening is completed, the mold shifting cylinder 14 retracts, and the first lower mold 21 is pulled to the original center position; this cycle is repeated.

[0032] like Figure 1 and Figure 2 As shown, the rubber injection molding machine with a low operating table and compact structure in this embodiment also includes a shooting platform component 1 and a base 81 component 8. The shooting platform component 1 is arranged on the upper mold plate 31, and the mold clamping component 3 is arranged on the base 81 component 8. The shooting platform component 1 is plasticized and injected to inject the rubber into the cold runner and the mold cavity. Fig.10 As shown, the injection plug 1a in the shooting platform component 1 can be pulled out of the injection barrel 1b, which is convenient for cleaning the waste rubber material of the shooting platform and removing the steel ball, shuttle shaft sleeve, etc. during maintenance. When replacing the injection plug 1a, it can be replaced without disassembling the plasticizing component, which is helpful for the use and maintenance of the whole machine. Fig.11 As shown, the injection nozzle is connected to the gate of the hot plate assembly 2 by a spherical sealing method.

[0033] like Figure 6 As shown, the cylinder body of the plunger cylinder 34 and the base 81 assembly 8 are installed at a lower position, and the bottom plate of the Coring column 32 of the clamping assembly 3 is also sunk into the base 81 assembly 8. Considering maintenance, the base cover plate 82 is designed to be detachable, and the screws on the Coring column 32 pressure plate can be removed with a hexagonal wrench.

[0034] like Figure 1 , Figure 2 and Figure 3As shown, the rubber injection molding machine with a low operating table and compact structure in this embodiment also includes an oil tank 16, a power component 5 and an electronic control component 6 arranged at the rear of the base 81 component 8. The oil tank 16 is provided with a warm oil component 7 for providing warm oil cooling for the cold runner and the oil temperature of the shooting platform. The power component 5 provides hydraulic power, and the electronic control component 6 controls the operation of the equipment. The oil tank 16 is on the ground, which is convenient for maintenance and will not leak oil to the mold, ensuring the cleanliness of the produced products; the power component 5 and the electronic control component 6 are fixed on the rear part of the base 81 component 8. The power component 5 provides sufficient hydraulic power for the machine, and the electronic control component 6 provides reliable control for the system. The oil tank 16 is equipped with a warm oil component 7 for providing warm oil cooling for the cold runner and the oil temperature of the shooting platform.

[0035] like Figure 1 and Figure 2 As shown, the rubber injection molding machine with a low operating table and compact structure in this embodiment also includes a baffle assembly 9 surrounding the sides and rear of the working area, and the front end of the working area is a grating protection area; an exhaust system 10 is provided on the top of the equipment to discharge the exhaust gas out of the working area. The working area is equipped with a baffle assembly 9, which surrounds the sides and rear of the working area, and the front end is a grating protection area, which is used to ensure the safety of the staff when the working area is running; the top of the machine is an exhaust system 10, which can discharge the exhaust gas generated in the production out of the workshop working area, and use pipelines to transport the exhaust gas to the exhaust gas treatment center for treatment.

[0036] like Figure 1 and Figure 3 As shown, the rubber injection molding machine with a low operating table and compact structure in this embodiment further includes a movable operating panel 13 connected to the electric control component 6 by signal. The operating panel 13 is movable and can be placed in a suitable position according to actual needs.

[0037] During operation, the four-combination mold cylinder 11a moves the upper mold plate 31 downward when the mechanical lock component 4 is open. When the upper and lower molds are in contact with each other, the locking cylinder 42 of the mechanical lock 41 drives the mechanical lock 41 to hold the coring column 32 to complete the mold closing, and then the power part directly hydraulically boosts the pressure to the plunger cylinder 34, and the boosting process is completed through the lower mold plate 33. The boosting stroke is small, and this process does not require a large displacement of the plunger cylinder 34, and does not require a filling pipe; the shooting platform component 1 is plasticized and injected, and the rubber is injected into the cold runner and the mold cavity, and the warm oil component is 7 provides warm oil cooling for the cold runner; there are two sets of lower molds on the hot plate assembly 2, namely the first lower mold 21 and the second lower mold 22; the mold can be opened after the product in the mold cavity meets the vulcanization requirements, and after the pressure in the plunger cylinder is released, the mechanical lock 41 is partially opened, and the four-combination mold cylinder 11a pushes the upper mold plate 31 to move upward. After reaching the predetermined position, the mechanical lock component 4 locks the coring column 32 to fix the upper mold plate 31; the lower mold plate 33 returns to its original position under the action of gravity and the auxiliary recovery cylinder assembly 12, and this displacement is small.

[0038] The advantages of this low-operating-table compact rubber injection molding machine over the traditional structure are: small oil tank, less refueling; small moving distance of the lower template, no need for a large-stroke product rack, cost saving, and stable machine; no filling pipe structure, low operating table, no need to build a table; low height of the whole machine, the best choice for factories with height requirements; short boost stroke, cost saving; double station, high efficiency; simple clamping structure, low maintenance cost, stable and reliable machine; the clamping plunger cylinder is at the bottom, the oil tank is on the ground, easy maintenance, and there is no risk of oil leakage to the mold.

[0039] In summary, the present invention is as described in the specification and the illustrations, and actual samples are made and tested for multiple times. From the test results, it is proved that the invention can achieve the expected purpose and its practicality is beyond doubt. The above embodiments are only used to facilitate the description of the content of the invention, and are not formally limited to it; any equivalent embodiments made by partial changes or modifications made by anyone with common knowledge in the technical field of the invention without departing from the scope of the technical features and similar features of the present invention and using the technical content disclosed by the invention, all belong to the protection scope of the present invention.

Claims

1. A rubber injection molding machine with a low operating table and compact structure, characterized by: The invention comprises a mold clamping assembly (3) and a mold clamping drive assembly (11); the mold clamping assembly (3) is provided with an upper mold plate (31), a plurality of coring columns (32), a lower mold plate (33) and a plunger cylinder (34); the upper mold plate (31) and the lower mold plate (33) are respectively mounted on the plurality of coring columns (32) in an upper and lower manner, and the plunger cylinder (34) is located at the bottom of the lower mold plate (33); the mold clamping drive assembly (11) has a movable end connected to the upper mold plate (31); the upper mold plate (31) is driven by the movable end of the mold clamping drive assembly (11) to move toward the lower mold plate (33) for mold clamping, and the upper mold plate (31) is locked after mold clamping, and the lower mold plate (33) is pressurized under the action of the plunger cylinder (34).

2. The low-operating-table-compact rubber injection molding machine according to claim 1 is characterized in that: The mold closing drive assembly (11) comprises a plurality of combined mold cylinders (11a); the piston rods of the mold closing cylinders (11a) are connected to the upper mold plate (31); and the cylinder bodies of the mold closing cylinders (11a) are arranged on the cylinder bodies of the plunger cylinders (34).

3. The rubber injection molding machine with a low operating surface and compact structure according to claim 1 or 2, characterized in that: It also includes a mechanical lock component (4), which is provided with a mechanical lock (41) and a locking cylinder (42), wherein the mechanical lock (41) is arranged on the two Corinthian columns (32), and each of the Corinthian columns (32) is respectively provided with two clamping seats (43) for clamping the Corinthian columns (32), and the clamping seats (43) are slidably arranged on the upper template (31), and the two clamping seats (43) on one of the Corinthian columns (32) are staggeredly connected with the clamping seats (43) on the other Corinthian column (32) through a plurality of connecting rods (44), and the piston rod of the locking cylinder (42) is connected to one of the clamping seats (43), and its cylinder body is connected to two of the connecting rods (44), and the piston rod of the locking cylinder (42) moves back and forth to drive the two clamping seats (43) on the two Corinthian columns (32) to be locked or released at the same time.

4. The low-operating-table-compact rubber injection molding machine according to claim 1, characterized in that: It also includes an auxiliary recovery cylinder assembly (12), the cylinder body of which is connected to the cylinder body of the plunger cylinder (34), and the piston rod of which is connected to the lower template (33).

5. The low-operating-table-compact rubber injection molding machine according to claim 1 is characterized in that: The lower mold plate (33) is provided with a support plate (15), a hot plate assembly (2) is arranged on the support plate (15), and a first lower mold (21) and a second lower mold (22) are arranged in parallel on the hot plate assembly (2); an upper mold (23) is provided on the upper mold plate (31), and the first lower mold (21) and the second lower mold (22) move back and forth to respectively realize mold opening and closing actions with the upper mold (23).

6. The low-operating-table-compact rubber injection molding machine according to claim 5, characterized in that: It also comprises a mould shifting cylinder (14), wherein the mould shifting cylinder (14) is connected to the lower mould plate (33) and pushes the first lower mould (21) and the second lower mould (22) to align with the upper mould (23) respectively.

7. The low-operating-table-compact rubber injection molding machine according to claim 1, characterized in that: It also comprises a shooting platform component (1) and a base assembly (8), wherein the shooting platform component (1) is arranged on the upper mold plate (31), and the mold clamping assembly (3) is arranged on the base assembly (8).

8. The low-operating-table-compact rubber injection molding machine according to claim 7, characterized in that: It also includes an oil tank (16), a power component (5) and an electronic control component (6) arranged at the rear of the base component (8); the oil tank (16) is provided with a warm oil component (7) for providing warm oil cooling to the cold runner and the oil temperature of the shooting platform; the power component (5) provides oil pressure power; and the electronic control component (6) controls the operation of the equipment.

9. The low-operating-table-compact rubber injection molding machine according to claim 1, characterized in that: It also includes a door assembly (9) surrounding the sides and rear of the working area, and the front end of the working area is a grating protection area; an exhaust system (10) is provided on the top of the equipment to discharge exhaust gas out of the working area.

10. The low-operating-table-compact rubber injection molding machine according to claim 8, characterized in that: It also includes a mobile operating panel (13) connected to the electric control component (6) by signal.

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