An electric screw press with self-fault diagnosis

Abstract

The present invention relates to the field of screw presses, and in particular, to an electric screw press capable of self-diagnosis of faults, including a bottom plate and a screw press, etc.; the screw press is movably connected to the upper part of the bottom plate. The present invention realizes detection of the screw by two mobile distance meters. When the screw press fails during operation, that is, the screw is suddenly stuck due to the influence of impurities, and the rotation speed suddenly decreases, the screw press is controlled to operate so that the screw rotates in the opposite direction based on the normal operation direction, and then the screw is retracted, and then the impurities mixed in the screw thread groove are cleaned by two brushes, and the impurities mixed in the screw thread groove are sucked by six Y-tubes, and air is sucked to one brush by two Y-tubes at corresponding positions, so as to remove the impurities adhered to the two brushes, and pre-clean the screw, and the heat generated by the screw is removed by six Y-tubes, so as to cool the screw and avoid overheating of the screw.

Description

Technical Field

[0001] The present invention relates to the field of screw presses, and more particularly to an electric screw press capable of self-diagnosing faults. Background Art

[0002] The existing Chinese patent (CN112317665B) for an electric screw press:

[0003] By setting a driving mechanism, the driving mechanism drives the lower pressing block to move. The upper die on the lower pressing block will move towards the lower die, thereby completing the processing of the workpiece. After the workpiece processing is completed, the first adjusting component is started. The first adjusting component drives the slider to slide in the first chute. The movement of the slider will drive the air spray pipe to move. The gas sprayed by the air spray pipe will blow out the residue and debris from the frame. Setting a cleaning mechanism can reduce manual operation and thus improve efficiency. However, this method has the following defects;

[0004] Since the screw in the screw press is exposed in the workshop environment, it is extremely easy for impurities such as dust and metal debris to be trapped in the thread grooves on the surface of the screw. At the same time, the screw is extremely easy to wear and generate metal debris after long-term use, which seriously affects the smooth movement of the screw. As a result, it is extremely easy for the screw press to malfunction, and a sudden malfunction is extremely likely to affect the processing quality of the product. If a housing is directly used to shield the screw to prevent impurities from being trapped in the thread grooves on the surface of the screw, when the screw press malfunctions, it is difficult to detect the malfunction in time due to the shielding of the housing. Moreover, after the screw press operates for a long time, it needs to be maintained. The existing maintenance operation requires the screw press to be shut down, and then manual maintenance is carried out, which increases the maintenance difficulty. At the same time, shutting down for maintenance greatly reduces the work efficiency. Summary of the Invention

[0005] In order to overcome the drawback that the malfunction of the screw press is not cleaned in time, which is extremely likely to affect the processing quality of the product, the present invention provides an electric screw press capable of self-diagnosing faults.

[0006] The technical implementation solution of the present invention is as follows: an electric screw press capable of self-diagnosing faults, comprising a bottom plate, a screw press, a screw rod, and a pressing die; the upper part of the bottom plate is movably connected with the screw press; the screw press is connected with the screw rod; the lower end of the screw rod is connected with the pressing die; two support parts are arranged on the upper part of the screw press and are distributed left and right; further comprising a mobile rangefinder, a brush, a Y-shaped pipe, a cylinder, an air pipe, a round cover, a suction pipe, and a fault removal system; the two support parts are jointly connected with the fault removal system; a mobile rangefinder is installed on each of the two support parts; the fault removal system is connected with two symmetrically distributed brushes; the fault removal system is connected with at least two Y-shaped pipes; the fault removal system is connected with the cylinder; an air pipe is arranged on the cylinder; a round cover is fixedly connected to the upper part of the cylinder, and a plurality of round holes are annularly and equidistantly penetrated through the round cover; the round cover is screwed with the screw rod; at least two suction pipes are connected to the round cover.

[0007] More preferably, the upper opening of the Y-shaped pipe is arranged in a conical shape for expanding the absorption range.

[0008] More preferably, the round holes annularly and equidistantly penetrated through the round cover are all arranged in an inverted conical shape to make the gas more concentrated.

[0009] More preferably, the upper openings of all the suction pipes are arranged in a conical shape for expanding the absorption range and are in one-to-one correspondence with all the Y-shaped pipes.

[0010] More preferably, the fault removal system comprises a support plate, a first conduit, a ring, a fixing plate, a sliding rod, and a first elastic member; a support plate is fixedly connected to each support part; a cavity is formed in the middle of each support plate, and a first conduit is fixedly connected and communicated in the cavity; each of the two support plates is fixedly connected with a brush; the two support plates are jointly fixedly connected with a ring; the ring is fixedly connected and communicated with all the Y-shaped pipes; the two support parts are jointly fixedly connected with a fixing plate; the fixing plate is fixedly connected with the cylinder; two symmetrically distributed sliding rods are slidably connected to the fixing plate; the lower ends of the two sliding rods are fixedly connected with the cylinder; a first elastic member is sleeved on the outer side of each of the two sliding rods, one end of the first elastic member is fixedly connected to the fixing plate, and the other end of the first elastic member is fixedly connected to the cylinder.

[0011] More preferably, the cavity formed in the middle of the support plate is arranged in an inclined shape to increase the suction force at the first conduit so as to facilitate the first conduit to suck out the excess lubricating oil.

[0012] More preferably, a deep cleaning system is further comprised; the deep cleaning system comprises a second elastic member and bristles; the second elastic member is fixedly connected to the inner wall of the cylinder; a plurality of bristles are fixedly connected to the second elastic member.

[0013] More preferably, all the bristles are spirally distributed for cooperating with the screw rod to remove the impurities in the thread grooves on the surface of the screw rod.

[0014] More preferably, it further includes a maintenance system; the maintenance system includes a frustum and a second conduit; the bottom of the inner wall of the ring is fixedly connected with the frustum; the frustum is fixedly connected and communicated with all the Y-shaped tubes; a second conduit is fixedly connected and communicated with the middle of each brush; the two second conduits are respectively fixedly connected with a support plate.

[0015] More preferably, the upper surface of the frustum is inclined for guiding the excess lubricating oil.

[0016] The advantages and positive effects of the present invention are:

[0017] 1. The screw is detected by two moving rangefinders. When a fault occurs during the operation of the screw press, that is, when the screw is suddenly stuck due to the influence of impurities and the rotation speed suddenly decreases, the operation of the screw press is controlled to make the screw rotate in the reverse direction based on the normal operation direction, so that the screw retracts, and then the impurities in the thread groove of the screw are cleaned by two brushes.

[0018] 2. Six Y-shaped tubes are used to suck the impurities in the thread groove of the screw, and two Y-shaped tubes at the corresponding positions suck air for one brush each, so as to suck the impurities adhered to the two brushes, thereby realizing pre-cleaning of the screw, and sucking the heat generated by the screw through the six Y-shaped tubes, thereby realizing cooling of the screw and avoiding overheating of the screw.

[0019] 3. All the bristles contact the screw, thereby generating frictional resistance, and cooperating with the helical movement of the screw to clean the impurities in the thread groove on the surface of the screw. At the same time, the external pump continuously operates, and then the impurities cleaned are sucked out through the cylinder.

[0020] 4. The circular holes penetrating through the ring on the circular cover are arranged in an inverted conical shape. When the cylinder sucks air, the gas will enter through the circular holes penetrating through the ring on the circular cover, so that the gas is more concentrated in the upper half of the second elastic member and the wind force is greater, thereby sucking the impurities adhered to the bristles in the upper half, so as to realize cleaning of the bristles and keep the bristles clean.

[0021] 5. Two brushes are used to coat the surface of the screw with lubricating oil, thereby maintaining the screw, improving the smoothness of the screw movement, and scraping off the excess lubricating oil on the surface of the screw by the frustum, and then sucking and collecting the excess lubricating oil, improving the smoothness of the screw movement while improving the work efficiency, and collecting the excess lubricating oil, effectively avoiding waste of lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The three-dimensional structural schematic diagram of the electric screw press with self-diagnosis of faults according to the present invention is shown;

[0023] Figure 2 Shown is a schematic three-dimensional structure diagram of the electric screw press of the present invention;

[0024] Figure 3 Shown is a first partial cross-sectional view of the fault removal system of the electric screw press with fault self-diagnosis of the present invention;

[0025] Figure 4 Shown is a second partial cross-sectional view of the fault removal system of the electric screw press with fault self-diagnosis of the present invention;

[0026] Figure 5 Shown is a schematic partial three-dimensional structure diagram of the fault removal of the electric screw press with fault self-diagnosis of the present invention;

[0027] Figure 6 Shown is a third partial cross-sectional view of the fault removal system of the electric screw press with fault self-diagnosis of the present invention;

[0028] Figure 7 Shown is a first schematic three-dimensional structure diagram of the deep cleaning system of the electric screw press with fault self-diagnosis of the present invention;

[0029] Figure 8 Shown is a second schematic three-dimensional structure diagram of the deep cleaning system of the electric screw press with fault self-diagnosis of the present invention;

[0030] Figure 9 Shown is a schematic three-dimensional structure diagram of the maintenance system of the electric screw press with fault self-diagnosis of the present invention.

[0031] Reference numerals in the drawings:

[0032] 1 - bottom plate, 2 - screw press, 21 - screw rod, 22 - pressing die, 23 - support part;

[0033] 201 - mobile rangefinder, 202 - support plate, 2021 - first conduit, 203 - brush, 204 - ring, 205 - Y-shaped tube, 206 - fixing plate, 207 - cylinder, 2071 - air pipe, 208 - round cover, 209 - suction pipe, 210 - sliding rod, 211 - first elastic member;

[0034] 301 - second elastic member, 302 - brush bristles;

[0035] 401 - frustum, 402 - second conduit. Detailed implementation manners

[0036] The following describes the implementation manners of the present invention with reference to the drawings.

[0037] Embodiment 1

[0038] An electric screw press 2 capable of self-diagnosing faults, according to Figures 1-6 As shown, it includes a base plate 1, a screw press 2, a screw rod 21 and a die 22; the upper part of the base plate 1 is bolted with a screw press 2; a screw rod 21 is connected to the screw press 2; the lower end of the screw rod 21 is connected to a die 22; two support parts 23 distributed left and right are arranged on the upper part of the screw press 2;

[0039] It also includes a mobile rangefinder 201, a brush 203, a Y-shaped pipe 205, a cylinder 207, an air pipe 2071, a round cover 208, a suction pipe 209 and a fault removal system; the two support parts 23 are jointly connected with a fault removal system; a mobile rangefinder 201 for fault detection is installed on each of the two support parts 23; the fault removal system is connected with two brushes 203 distributed left and right; the fault removal system is connected with six Y-shaped pipes 205; the fault removal system is connected with a cylinder 207, and the cylinder 207 is made of elastic material; an air pipe 2071 is fixedly connected and communicated with the cylinder 207; a round cover 208 is fixedly connected to the upper part of the cylinder 207, and a number of round holes are annularly and equidistantly penetrated through the round cover 208; the round cover 208 is screwed with the screw rod 21; six suction pipes 209 are fixedly connected and communicated with the round cover 208.

[0040] The upper opening of the Y-shaped pipe 205 is arranged in a conical shape to expand the absorption range.

[0041] The round holes annularly and equidistantly penetrated through the round cover 208 are all arranged in an inverted conical shape to make the gas more concentrated.

[0042] The upper openings of all the suction pipes 209 are arranged in a conical shape to expand the absorption range and correspond to all the Y-shaped pipes 205 one by one.

[0043] The fault removal system includes a support plate 202, a first conduit 2021, a circular ring 204, a fixing plate 206, a sliding rod 210, and a first elastic member 211; a support plate 202 is fixedly connected to each support portion 23; a cavity is formed in the middle of each support plate 202, and a first conduit 2021 is connected in the cavity, and the cavity formed in the middle of the support plate 202 is inclined; a brush 203 is fixedly connected to each of the two support plates 202; the two support plates 202 are jointly fixedly connected to a circular ring 204; the circular ring 204 is fixedly connected and communicated with all the Y-shaped tubes 205, and the heat generated by the screw 21 is removed through the six Y-shaped tubes 205, so as to realize cooling of the screw 21 and prevent the screw 21 from overheating; the two support portions 23 are jointly fixedly connected to a fixing plate 206; the fixing plate 206 is fixedly connected to the cylinder 207; two sliding rods 210 distributed left and right are slidably connected to the fixing plate 206; the lower ends of the two sliding rods 210 are fixedly connected to the cylinder 207; a first elastic member 211 is sleeved outside each of the two sliding rods 210, one end of the first elastic member 211 is fixedly connected to the fixing plate 206, and the other end of the first elastic member 211 is fixedly connected to the cylinder 207.

[0044] When performing fault removal: The peripheral pump is pre-connected to the air pipe 2071. When the screw press 2 operates normally, the screw 21 will move in a uniform spiral downward manner. After the processing is completed, the screw press 2 is controlled to operate normally, so that the screw 21 moves upward in a uniform spiral. Since the screw 21 is exposed in the workshop environment, it is very easy for impurities such as dust and metal chips to be mixed in the thread grooves on the surface of the screw 21. At the same time, the screw 21 is very easy to wear and generate metal chips after long-term use, which seriously affects the smooth movement of the screw 21, and it is very easy for the screw press 2 to malfunction. And a sudden malfunction is very easy to affect the processing quality of the product. The screw 21 is detected by two moving rangefinders 201. When the screw press 2 malfunctions during operation, that is, when the screw 21 is suddenly stuck due to the influence of impurities and the rotation speed suddenly decreases, the screw press 2 is controlled to operate, so that the screw 21 rotates in the reverse direction based on the normal operation direction, and then the screw 21 retracts. At this time, the screw 21 moves in a spiral manner and contacts the two brushes 203. Then, the impurities mixed in the thread grooves of the screw 21 are cleaned by the two brushes 203. At the same time, the peripheral pump is controlled to operate, and then a negative pressure is generated in the cylinder 207 through the air pipe 2071, and then air is sucked through the six suction pipes 209. Since the six suction pipes 209 correspond to the six Y-shaped tubes 205 one by one, the six Y-shaped tubes 205 suck air. At this time, the impurities mixed in the thread grooves of the screw 21 are sucked through the six Y-shaped tubes 205, and air is sucked through the two Y-shaped tubes 205 at the corresponding positions to each of the two brushes 203, so as to suck the impurities adhered to the two brushes 203, thereby realizing pre-cleaning of the screw 21.

[0045] Meanwhile, after the screw press 2 operates for a long time, the screw rod 21 is extremely prone to overheating. When the six suction pipes 209 suck air, the six Y-shaped pipes 205 suck air, thereby sucking away the heat generated by the screw rod 21 through the six Y-shaped pipes 205, so as to cool the screw rod 21 and avoid overheating of the screw rod 21.

[0046] Embodiment 2:

[0047] Based on Embodiment 1, according to Figures 7-8 As shown, it further includes a deep cleaning system; the deep cleaning system includes a second elastic member 301 and bristles 302; the second elastic member 301 is fixedly connected to the inner wall of the cylinder 207; several bristles 302 are fixedly connected to the second elastic member 301, and all the bristles 302 are spirally distributed. By contacting the screw rod 21 with all the bristles 302, frictional resistance is generated, so as to cooperate with the spiral movement of the screw rod 21 to clean the impurities in the thread grooves on the surface of the screw rod 21.

[0048] During deep cleaning: after pre-cleaning the screw rod 21, control the operation of the screw press 2 to make the screw rod 21 move spirally downward, so that the screw rod 21 contacts all the bristles 302. Since the bristles 302 are spirally distributed, by contacting the screw rod 21 with all the bristles 302, frictional resistance is generated, so as to cooperate with the spiral movement of the screw rod 21 to clean the impurities in the thread grooves on the surface of the screw rod 21. At the same time, the external pump continuously operates, and then sucks away the cleaned impurities through the cylinder 207.

[0049] And because the circular holes penetrating through the circular cover 208 at equal intervals in the circumferential direction are arranged in an inverted conical shape, when the cylinder 207 sucks air, the gas will enter through the circular holes penetrating through the circular cover 208 at equal intervals in the circumferential direction, so that the gas is more concentrated in the upper half of the second elastic member 301 and the wind force is greater. At the same time, when all the bristles 302 clean the screw rod 21, the upper half of the bristles 302 first contact the screw rod 21, resulting in more impurities adhering to the upper half of the bristles 302 and less impurities adhering to the lower half of the bristles 302. Then, the upper half of the bristles 302 is cleaned by the greater and more concentrated wind force, so as to suck away the impurities adhering to the upper half of the bristles 302, so as to clean the bristles 302 and keep the bristles 302 in a clean state.

[0050] When the sizes of the workpieces to be processed are different, the spiral press 2 is controlled to operate, so that the lifting heights of the screw rod 21 are different. At this time, the movement of the screw rod 21 drives the movement of the pressing die 22, and the movement of the pressing die 22 squeezes the cylinder 207, thereby compressing the cylinder 207. At the same time, the corresponding first elastic member 211 and the second elastic member 301 are compressed, so as to meet the processing requirements of different workpieces, enhance the adaptability of the processing system. At the same time, the compression of the second elastic member 301 makes the upper half of the bristles 302 contact the lower half of the bristles 302, so that the bristles 302 contact and rub against each other, and thus the impurities adhered to the bristles 302 are further removed by the frictional force. Then, the impurities cleaned are sucked out through the cylinder 207.

[0051] Embodiment 3:

[0052] Based on Embodiment 2, according to Figure 9 As shown, it further includes a maintenance system; the maintenance system includes a frustum 401 and a second conduit 402; the bottom of the inner wall of the ring 204 is fixedly connected with a frustum 401 for guiding the excess lubricating oil; the frustum 401 is fixedly connected and communicated with all the Y-shaped tubes 205; a second conduit 402 is fixedly connected and communicated with the middle of each brush 203; the two second conduits 402 are respectively fixedly connected with a support plate 202.

[0053] The upper surface of the frustum 401 is inclined for guiding the excess lubricating oil.

[0054] Both the first elastic member 211 and the second elastic member 301 are springs.

[0055] During maintenance: The external oil pump is pre-connected to the two second conduits 402, and the external air pump is connected to the two first conduits 2021. After sucking out the impurities in the thread grooves on the surface of the screw rod 21, the external oil pump is controlled to operate, and then oil is injected into one brush 203 through the two second conduits 402 respectively. At this time, the lubricating oil will be coated on the surface of the screw rod 21 through the two brushes 203, so as to maintain the screw rod 21 and improve the smoothness of the movement of the screw rod 21. When the lubricating oil coating is completed, there is still some excess lubricating oil remaining on the surface of the screw rod 21. At this time, the spiral press 2 is controlled to operate, and then the screw rod 21 moves. At this time, the screw rod 21 will move through the frustum 401, and then the excess lubricating oil on the surface of the screw rod 21 will be scraped off through the frustum 401 and flow along the outer surface of the frustum 401 to the cavities opened in the middle of the two support plates 202. At this time, the external pump is controlled to operate, and then through the two first conduits 2021, a negative pressure is generated in the cavities opened in the middle of the two support plates 202, so as to suck out the excess lubricating oil, and then collect it, so as to realize the maintenance of the screw rod 21 without stopping the machine, improve the smoothness of the movement of the screw rod 21, and effectively improve the work efficiency. At the same time, the excess lubricating oil is collected, effectively avoiding the waste of lubricating oil.

[0056] Although the present disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art should understand that various changes in form and detail may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-described embodiments, but should be determined not only by the appended claims but also by the equivalents of the appended claims.

Claims

1. An electric screw press capable of self-diagnosing faults, comprising a bottom plate (1), a screw press (2), a screw rod (21) and a die (22); the upper part of the bottom plate (1) is movably connected with the screw press (2); the screw press (2) is connected with the screw rod (21); the lower end of the screw rod (21) is connected with the die (22); two supporting parts (23) distributed left and right are arranged on the upper part of the screw press (2); it is characterized in that, It also includes a mobile rangefinder (201), a brush (203), a Y-shaped tube (205), a cylinder (207), an air pipe (2071), a round cover (208), a straw (209) and a fault removal system; the two support parts (23) are jointly connected to the fault removal system; a mobile rangefinder (201) is installed on each of the two support parts (23); the fault removal system is connected to two symmetrically distributed brushes (203); the fault removal system is connected to at least two Y-shaped tubes (205); the fault removal system is connected to a cylinder (207); an air pipe (2071) is arranged on the cylinder (207); a round cover (208) is fixedly connected to the upper part of the cylinder (207), and a number of round holes are annularly and equidistantly penetrated through the round cover (208); the round cover (208) is screwed to the screw rod (21); at least two straws (209) are connected to the round cover (208); the fault removal system includes a support plate (202), a first conduit (2021), a ring (204), a fixing plate (206), a sliding rod (210) and a first elastic member (211); a support plate (202) is fixedly connected to each support part (23); a cavity is formed in the middle of each support plate (202), and a first conduit (2021) is fixedly connected and communicated in the cavity; each of the two support plates (202) is fixedly connected to a brush (203); the two support plates (202) are jointly fixedly connected to a ring (204); the ring (204) is fixedly connected and communicated with all the Y-shaped tubes (205); the two support parts (23) are jointly fixedly connected to a fixing plate (206); the fixing plate (206) is fixedly connected to the cylinder (207); two symmetrically distributed sliding rods (210) are slidably connected to the fixing plate (206); the lower ends of the two sliding rods (210) are fixedly connected to the cylinder (207); a first elastic member (211) is sleeved on the outer sides of the two sliding rods (210), one end of the first elastic member (211) is fixedly connected to the fixing plate (206), and the other end of the first elastic member (211) is fixedly connected to the cylinder (207).

2. The self-fault-diagnosable electric screw press according to claim 1, wherein The upper opening of the Y-shaped tube (205) is conical to expand the absorption range.

3. The self-fault-diagnosable electric screw press according to claim 1, wherein The round holes annularly and equidistantly penetrated through the round cover (208) are all inverted conical to make the gas more concentrated.

4. The self-fault-diagnosable electric screw press according to claim 1, wherein The upper openings of all the straws (209) are conical to expand the absorption range and correspond to all the Y-shaped tubes (205) one by one.

5. The self-fault-diagnosable electric screw press according to claim 1, wherein The cavity formed in the middle of the support plate (202) is inclined to increase the suction force at the first conduit (2021) so as to facilitate the first conduit (2021) to suck out the excess lubricating oil.

6. A self-fault-diagnosable electric screw press according to claim 1, characterized in that it further comprises a deep cleaning system; the deep cleaning system includes a second elastic member (301) and bristles (302); the inner wall of the cylinder (207) is fixedly connected with the second elastic member (301); a plurality of bristles (302) are fixedly connected to the second elastic member (301).

7. A self-fault-diagnosable electric screw press according to claim 6, characterized in that all the bristles (302) are spirally distributed and are used to cooperate with the screw rod (21) to remove impurities in the thread grooves on the surface of the screw rod (21).

8. A self-fault-diagnosable electric screw press according to claim 6, characterized in that it further comprises a maintenance system; the maintenance system includes a frustum (401) and a second conduit (402); the bottom of the inner wall of the ring (204) is fixedly connected with the frustum (401); the frustum (401) is fixedly connected and communicated with all the Y-shaped tubes (205); a second conduit (402) is fixedly connected and communicated in the middle of each brush (203); the two second conduits (402) are respectively fixedly connected to a support plate (202).

9. A self-fault-diagnosable electric screw press according to claim 8, characterized in that the upper surface of the frustum (401) is inclined for guiding the excess lubricating oil.

Images