Press machine with rotary safety stop block

Abstract

The utility model discloses a press machine with a rotary safety check block. The press machine comprises a machine frame and a sliding block. A rotatable stop unit matched with the sliding block is arranged on the rack; the stop unit comprises a fixed shaft and a spiral sleeve which is in spiral running fit with the fixed shaft; the spiral sleeve extends towards one side and is provided with a supporting shaft; the supporting shaft is matched with the lower end face of the sliding block through spiral rotation of the spiral sleeve to achieve sliding block stopping. Stepless height adjustment is achieved through matching of the spiral groove and the fixing pin, the adjustment range can reach more than 1 / 4 of the total height of the spiral sleeve, and rapid rising is achieved through rotation of the adjusting handle. And meanwhile, the bending strength of the supporting shaft is improved through the design of the connecting frame and the reinforcing piece, so that the sliding block is effectively supported, and the supporting force of the check block is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of press technology, and in particular to a press with a rotary safety stop. Background Technology

[0002] As a common industrial processing equipment, the safety protection devices of a press play a crucial role in ensuring the safety of operators and equipment. The rotary safety stop, a key protective device for the press slide, is typically located above the press body and uses a rotating mechanism to switch between working and non-working positions. When the press requires mold replacement or maintenance, the operator rotates the stop to a position below the slide, using the stop body to provide rigid support to the lower end face of the slide, thus preventing the slide from accidentally falling and causing an accident.

[0003] However, existing rotary safety stops still have significant drawbacks in practical applications:

[0004] 1. The height parameters of traditional stop blocks are designed with a fixed type. The theoretical distance between the support surface and the lower end surface of the slider needs to be matched by adjusting the slider stroke or adding additional pads. This not only increases the complexity of equipment debugging, but also requires operators to repeatedly make longitudinal fine adjustments to the slider when the mold is frequently changed, which significantly reduces the work efficiency.

[0005] 2. Existing stops generally lack a reliable rotary locking mechanism after entering the working position, posing a safety hazard. Utility Model Content

[0006] This invention addresses the shortcomings of existing technologies by providing a press safety stop that achieves height adjustment through screw transmission and is equipped with a quick-locking structure, featuring convenient operation and high stability.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a press with a rotary safety stop, comprising a frame and a slider;

[0008] The frame is equipped with a rotatable stop unit adapted to the slider;

[0009] The stop unit includes a fixed shaft and a spiral sleeve that rotates with it.

[0010] The spiral sleeve extends to one side and is provided with a support shaft;

[0011] The support shaft is stopped by rotating a spiral sleeve to engage with the lower end face of the slider.

[0012] In the above scheme, preferably, the spiral sleeve is provided with a plurality of spiral grooves evenly distributed, and the fixed shaft is provided with a fixing pin that cooperates with the spiral grooves.

[0013] In the above scheme, preferably, the pitch of the spiral groove is 1 / 4 or more of the overall height of the spiral sleeve.

[0014] In the above scheme, preferably, a safety stop is provided at the upper end of the support shaft.

[0015] In the above scheme, preferably, the spiral sleeve is provided with a connecting frame, the connecting frame includes several connecting plates, one end of the connecting plate is connected to the spiral sleeve, and the other end is connected to the support shaft;

[0016] A reinforcing member is provided between adjacent connecting plates.

[0017] In the above scheme, preferably, any of the connecting plates is provided with a threaded sleeve, and the support shaft is threadedly engaged with the threaded sleeve.

[0018] In the above scheme, preferably, the support shaft is provided with a gripping part, and the gripping part is provided with a plurality of gripping grooves.

[0019] In the above scheme, preferably, the spiral sleeve is provided with an adjusting handle, the fixed shaft is provided with an adjusting gear, and the adjusting handle is provided with a locking tooth that engages with the adjusting gear after rotation.

[0020] In the above scheme, preferably, a locking spring is provided between the adjusting handle and the spiral sleeve.

[0021] In the above scheme, preferably, the locking tooth extends along the length direction of the adjusting handle and is located on the side of the adjusting handle's rotation direction.

[0022] The beneficial effects of this utility model are: this utility model achieves stepless height adjustment through the cooperation of the spiral groove and the fixed pin, the adjustment range can reach more than 1 / 4 of the total height of the spiral sleeve, and rapid lifting can be achieved by rotating the adjustment handle;

[0023] Meanwhile, the bending strength of the support shaft is improved through the design of the connecting frame and the reinforcing parts, so as to effectively support the slider and greatly improve the support force of the stop. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 2 This is a three-dimensional structural diagram of the stop unit of this utility model.

[0026] Figure 3 This is a schematic diagram of the connection structure of the spiral sleeve and support shaft of this utility model.

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the fixed shaft of this utility model. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1-4 .

[0029] A press with a rotary safety stop includes a frame 1 and a slider 2 that moves up and down along a guide rail on the frame 1. A rotatable stop unit 3 is fixedly installed on the side of the frame 1. The stop unit 3 includes a fixed shaft 301, a screw sleeve 302, and a support shaft 303. The fixed shaft 301 is vertically installed on one side of the frame 1 and is located on either side of the slider 2, so that it does not interfere with the slider when the slider 2 slides.

[0030] The spiral sleeve 302 is rotatably mounted on the fixed shaft 301, and its wall is provided with spiral grooves 304 arranged around its circumference. The number of spiral grooves 304 is at least two sets; in this embodiment, four sets of spiral grooves 304 are used as an example. The spiral grooves 304 penetrate the wall of the spiral sleeve 302. Figure 3 As shown, the helical angle of the helical groove 304 is controlled within 270°, and the pitch of the helical groove 304 is more than 1 / 4 of the overall height of the helical sleeve 302.

[0031] A fixing pin 305, matching the number of spiral grooves 304, is fixed to the outer wall of the fixed shaft 301. One end of each fixing pin 305 is fixed to the outer wall of the fixed shaft 301, and the other end passes through the spiral groove 304. Figure 2 As shown; when the screw sleeve 302 rotates around the fixed shaft 301, the fixed pin 305 moves along the trajectory of the screw groove 304, driving the screw sleeve 302 and the support shaft 303 to translate axially and rotate radially, thereby adjusting the distance between the upper end face of the support shaft 303 and the lower end face of the slider 2, realizing continuous stepless adjustment of the height of the support shaft 303. When the upper end face of the support shaft 303 contacts the lower end face of the slider 2, locking the screw sleeve 302 can stop the slider 2.

[0032] The outer wall of the spiral sleeve 302 is welded with a connecting frame 4. One end of the connecting frame 4 is fixedly connected to the spiral sleeve 302, and the other end is connected to the support shaft 303. The connecting frame 4 includes several connecting plates 401. In this embodiment, two connecting plates 401 are provided, and the middle of the two connecting plates 401 are connected by a reinforcing member 402, thereby improving the strength of the entire connecting frame 4.

[0033] Each of the connecting plates 401 is provided with a threaded sleeve 403, and the support shaft 303 is threadedly engaged with the threaded sleeve 403, such as... Figure 2 As shown, in this embodiment, the threaded sleeve 403 is disposed on the upper connecting plate 401, and the thread of the threaded sleeve 403 is a fine thread, so that the axial height of the support shaft 303 can be finely adjusted by rotating the support shaft 303.

[0034] A safety stop 306 is fixedly provided at the upper end of the support shaft 303. The safety stop 306 is a buffer block, which can be made of polyurethane or rubber, etc., to reduce the impact when the slider 2 falls. A gripping part 307 is processed on the outer wall of the rod at the lower part of the support shaft 303, and radial gripping grooves 308 are opened on the surface to facilitate the operator to apply force to rotate the support shaft 303 for fine adjustment.

[0035] like Figure 2 As shown, the end of the spiral sleeve 302 is rotatably connected to the adjusting handle 5 via a pin. A locking tooth 501 extending along the length of the adjusting handle 5 is welded to its inner side. The lower end of the fixed shaft 301 is coaxially fixed to the adjusting gear disk 6, which has circumferentially distributed grooves that mesh with the locking tooth 501. A locking spring (not shown) is installed between the adjusting handle 5 and the spiral sleeve 302. Under normal conditions, pushing the adjusting handle 5 engages the locking tooth 501 with the adjusting gear disk 6, achieving circumferential locking of the spiral sleeve 302. When height adjustment is required, pulling the adjusting handle 5 outward stretches the spring, disengaging the locking tooth 501 from the adjusting gear disk 6. Rotating the adjusting handle 5 then rotates the spiral sleeve 302, further lifting the support shaft 303. Releasing the handle resets the spring, automatically completing the locking. The locking tooth 501 extends along the length of the adjusting handle 5 and is located on the side of the adjusting handle 5 facing the direction of rotation of the adjusting gear disk 6.

[0036] The method of using a press with a rotary safety stop as described above:

[0037] Height adjustment: The operator holds the adjustment handle 5, so that the adjustment handle 5 overcomes the elastic force of the locking spring, and makes the handle perpendicular to the axis of the spiral sleeve 302. Then, the spiral sleeve 302 is rotated by adjusting the handle 5.

[0038] The spiral sleeve 302 rotates around the fixed shaft 301, the spiral groove 304 moves along the fixed pin 305, spirals upward, and simultaneously drives the support shaft 303 to move axially to the target height through the connecting frame 4;

[0039] Quick locking: After adjustment, the adjusting handle 5 engages the locking tooth 501 with the adjusting tooth plate 6 under the action of the spring, preventing the spiral sleeve 302 from rotating accidentally;

[0040] Fine-tuning function: By rotating the support shaft 303 and engaging the threaded sleeve 403 of the connecting plate 401, the extension length of the support shaft 303 can be finely adjusted.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A press with a rotary safety dog, characterized in that: Includes frame (1) and slider (2); The frame (1) is provided with a rotatable stop unit (3) adapted to the slider (2). The stop unit (3) includes a fixed shaft (301) and a spiral sleeve (302) that rotates with it. The spiral sleeve (302) extends to one side and is provided with a support shaft (303); The support shaft (303) is stopped by the spiral rotation of the spiral sleeve (302) to cooperate with the lower end face of the slider (2).

2. A press with a rotary safety dog according to claim 1, characterized in that: The spiral sleeve (302) is provided with a plurality of spiral grooves (304) evenly distributed, and the fixed shaft (301) is provided with a fixing pin (305) that cooperates with the spiral grooves (304).

3. A press with a rotary safety dog according to claim 2, characterized in that: The pitch of the spiral groove (304) is 1 / 4 or more of the overall height of the spiral sleeve (302).

4. A press with a rotary safety dog according to claim 1, characterized in that: A safety stop (306) is provided at the upper end of the support shaft (303).

5. A press with a rotary safety dog according to claim 1, characterized in that: The spiral sleeve (302) is provided with a connecting frame (4), the connecting frame (4) includes several connecting plates (401), one end of the connecting plate (401) is connected to the spiral sleeve (302), and the other end is connected to the support shaft (303); A reinforcing member (402) is provided between adjacent connecting plates (401).

6. A press with a rotary safety dog according to claim 5, characterized in that: A threaded sleeve (403) is provided on any of the connecting plates (401), and the support shaft (303) is threadedly engaged with the threaded sleeve (403).

7. A press with a rotary safety dog according to claim 5, characterized in that: The support shaft (303) is provided with a gripping part (307), and the gripping part (307) is provided with a plurality of gripping grooves (308).

8. A press with a rotary safety dog according to claim 1, characterized in that: The spiral sleeve (302) is provided with an adjusting handle (5), the fixed shaft (301) is provided with an adjusting gear (6), and the adjusting handle (5) is provided with a locking tooth (501) that engages with the adjusting gear (6) after rotation.

9. The press with a rotary safety stop according to claim 8, characterized in that: A locking spring is provided between the adjusting handle (5) and the spiral sleeve (302).

10. A press with a rotary safety dog according to claim 9, characterized in that: The locking tooth (501) extends along the length of the adjusting handle (5) and is located on the side of the adjusting handle (5) in the direction of rotation.

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