Screw pressing die

Abstract

A screw pressing die relates to the technical field of screw production equipment and comprises an upper die plate, a plurality of middle die plates and a lower die plate which are sequentially stacked in parallel in the vertical direction, and a plurality of countersunk blind holes are formed in the upper portions of the lower die plate and the middle die plates; the pressing assembly comprises a supporting part fixedly connected with the lower mold plate, a pressing part arranged on the supporting part in a sliding and sleeving mode and an operation part movably connected with the supporting part, the supporting part freely penetrates through the multiple middle mold plates and the upper mold plate, the operation part is rotationally connected with the pressing part, and the pressing part is located above the upper mold plate and used for abutting against the upper mold plate; during use, a plurality of screws with proper sizes are correspondingly placed in a plurality of countersunk blind holes in a plurality of middle templates and a plurality of lower templates one by one, then the upper template, the plurality of middle templates and the lower templates are stacked neatly, and then an operation part is rotated to move relative to a supporting part to drive a pressing part to move towards the upper template until the pressing part abuts against the upper template; and the upper template, the plurality of middle templates and the lower template are tightly pressed.

Description

Technical Field

[0001] The utility model relates to the technical field of screw production equipment, in particular to a screw pressing die. Background Art

[0002] A mold is a tool used to make molded objects, usually for compression molding or injection molding of products. For some special screws that require the screws to reach a specific torque, molds can also be used to assist in standardized processing.

[0003] In the Chinese utility model patent with authorization announcement number CN219425427U, a screw pressing mold is disclosed, which includes a lower template and at least one upper template, the side of the lower template facing the upper template is a storage side for storing screws, the side of the upper template facing the lower template is a pressing side for pressing the screws, the storage side and the corresponding pressing side form a pressing unit, corresponding connecting holes are arranged on the lower template and the upper template, and connecting pieces are arranged to match the connecting holes.

[0004] Although the above patent can press multiple screws at the same time, the connection between the lower template and the upper templates during the pressing process is achieved by bolts passing through the corresponding connection holes on the lower template and the upper templates. This connection method requires operation on each bolt, which is cumbersome, time-consuming and labor-intensive. In addition, the tightening degree of each bolt by the operator is not exactly the same, resulting in uneven force on the screws at different positions between the lower template and the upper templates, resulting in poor pressing effect. Utility Model Content

[0005] In view of the deficiencies existing in the prior art, the utility model provides a screw pressing die, which solves the problems existing in the prior art of complicated pressing operation of the pressing die, uneven force on the screws and poor pressing effect.

[0006] A screw pressing die, comprising:

[0007] An upper template, a plurality of middle templates and a lower template are stacked in parallel in the vertical direction, and a plurality of countersunk blind holes are formed on the upper parts of the lower template and the plurality of middle templates; and

[0008] A clamping assembly, comprising a support portion fixedly connected to the lower template, a clamping portion slidably sleeved on the support portion, and an operating portion movably connected to the support portion, wherein the support portion freely passes through a plurality of middle templates and an upper template, the operating portion is rotatably connected to the clamping portion, and the clamping portion is located above the upper template and is used to abut against the upper template;

[0009] The rotating operation part and the supporting part move relative to each other to drive the pressing part to move in the vertical direction.

[0010] Compared with the prior art, the utility model has the following beneficial effects: when in use, a number of screws of appropriate sizes are placed one by one in a number of countersunk blind holes on a number of middle templates and a lower template, and then the upper template, a number of middle templates and a lower template are stacked neatly, and then the operating part is rotated to move relative to the supporting part, driving the clamping part to move toward the upper template until it abuts against the upper template, and the operating part is continued to be rotated, so that the clamping part presses the upper template, a number of middle templates and a lower template to complete the pressing of a number of screws; the operation is simple and convenient, and the upper template, a number of middle templates and a lower template are pressed synchronously as a whole by the clamping part, ensuring that the screws are evenly stressed and the pressing effect is improved.

[0011] Preferably, the middle parts of the upper template and the several middle templates are provided with through holes, the supporting part includes a stud with one end fixedly connected to the middle part of the lower template, the other end of the stud vertically and freely passes through the through holes of the upper template and the several middle templates, the clamping part is slidably sleeved on the outside of the stud, and the operating part is threadedly connected to the stud.

[0012] Preferably, the clamping part includes a sliding sleeve and a conical ring coaxially fixedly connected in the vertical direction, the sliding sleeve and the conical ring are both slidably mounted on the outside of the support column, the operating part is rotatably connected to one end of the sliding sleeve away from the conical ring, and the conical ring is used to abut against the upper template.

[0013] Preferably, the operating portion comprises an internal threaded sleeve coaxially rotatably connected to an end of the sliding sleeve away from the conical ring, and the internal threaded sleeve is threadedly connected to the stud.

[0014] Preferably, two slide grooves are provided on the side wall of the stud in opposite directions along the axial direction, and two slide bars are fixedly installed in opposite directions along the axial direction between the sliding sleeve and the inner wall of the conical ring, and the two slide bars are slidably connected to the two slide grooves in a one-to-one correspondence.

[0015] Preferably, a plurality of positioning members are provided between the upper template and the adjacent middle template, between two adjacent middle templates, and between the lower template and the adjacent middle template, and the plurality of positioning members are evenly distributed along the circumference of the upper template, the middle template or the lower template.

[0016] Preferably, each positioning member includes a positioning groove provided on the upper part of the lower template or the middle template and a positioning column fixedly installed on the lower part of the upper template or the middle template, and the positioning column is plugged into and matched with the corresponding positioning groove.

[0017] Preferably, the plurality of countersunk blind holes on the lower template and the plurality of middle templates are arranged along a circumferential array of the studs.

[0018] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of an embodiment of the utility model.

[0020] Figure 2 for Figure 1 Cross-sectional view along the AA direction.

[0021] Figure 3 for Figure 1 Cross-sectional view along the BB direction.

[0022] Figure 4 for Figure 1 Schematic diagram of the structure of the middle clamping part.

[0023] Figure 5 for Figure 1 Front view of one end face of the middle template.

[0024] Figure 6 for Figure 1 Front view of the other end face of the center template.

[0025] The numbers in the figure are: 1, lower template; 2, middle template; 3, upper template; 4, conical ring; 41, sliding sleeve; 42, sliding bar; 5, internal threaded sleeve; 6, stud; 61, sliding groove; 7, countersunk blind hole; 8, positioning groove; 81, positioning column; 9, through hole. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods:

[0027] like Figure 1-2 As shown, an embodiment of the utility model provides a screw pressing mold, comprising: an upper template 3, a plurality of middle templates 2 and a lower template 1 which are stacked in parallel in sequence along the vertical direction, and a plurality of countersunk blind holes 7 are opened on the upper parts of the lower template 1 and the plurality of middle templates 2; and a clamping assembly, which comprises a supporting part fixedly connected to the lower template 1, a clamping part slidably sleeved on the supporting part, and an operating part movably connected to the supporting part, the supporting part freely passes through the plurality of middle templates 2 and the upper template 3, the operating part is rotatably connected to the clamping part, the clamping part is located above the upper template 3 and is used to abut against the upper template 3; the rotating operating part and the supporting part move relative to each other to drive the clamping part to move along the vertical direction.

[0028] Place a number of screws of appropriate sizes in correspondence with each other in a number of countersunk blind holes 7 on a number of middle templates 2 and a lower template 1, then stack the upper template 3, a number of middle templates 2 and a lower template 1 neatly, then rotate the operating part and the supporting part to move relative to each other, drive the clamping part to move toward the upper template 3 until it abuts against the upper template 3, and continue to rotate the operating part so that the clamping part presses the upper template 3, a number of middle templates 2 and the lower template 1 to complete the pressing of a number of screws; the operation is simple and convenient, and the upper template 3, a number of middle templates 2 and the lower template 1 are pressed synchronously as a whole through the clamping part to ensure that the screws are evenly stressed and the pressing effect is improved.

[0029] like Figure 1-2 as well as Figure 4-5 As shown, according to another embodiment of the utility model, the screw pressing mold further optimizes the supporting part, the clamping part and the operating part included therein, and the middle parts of the upper template 3 and the plurality of middle templates 2 are provided with through holes 9, the supporting part includes a stud 6 fixedly connected to the middle part of the lower template 1 at one end, and the other end of the stud 6 vertically and freely passes through the through holes 9 of the upper template 3 and the plurality of middle templates 2, the clamping part is slidably sleeved on the outside of the stud 6, and the operating part is threadedly connected to the stud 6; preferably, the plurality of countersunk blind holes 7 on the lower template 1 and the plurality of middle templates 2 are arranged along the circumferential array of the stud 6, so that the arrangement regularity of the plurality of screws ensures that the force on the plurality of screws is more uniform.

[0030] The clamping part includes a sleeve 41 and a conical ring 4 which are coaxially fixedly connected in the vertical direction. The sleeve 41 and the conical ring 4 are both slidably sleeved on the outside of the support column. The operating part is rotatably connected to the end of the sleeve 41 away from the conical ring 4, and the conical ring 4 is used to abut against the upper template 3; and preferably, two sliding grooves 61 are opened on the side wall of the stud 6 along its axial direction, and two sliding bars 42 are fixedly installed between the sleeve 41 and the inner wall of the conical ring 4 along its axial direction, and the two sliding bars 42 are slidably connected to the two sliding grooves 61 in a one-to-one manner; so that when the operating part rotates, the sleeve 41 and the conical ring 4 do not rotate synchronously with the operating part, but only move along the axial direction of the stud 6, to ensure that when the conical ring 4 abuts against the upper template 3, no relative movement occurs between the two.

[0031] The operating part includes an internal threaded sleeve 5 which is coaxially connected to the end of the sliding sleeve 41 away from the conical ring 4, and the internal threaded sleeve 5 is threadedly connected to the stud 6; the internal threaded sleeve 5 can be disengaged from the stud 6, so that the sliding sleeve 41 and the conical ring 4 can be removed from the stud 6, which is convenient for increasing or decreasing the number of middle molds after removing the upper mold.

[0032] like Figure 3 as well as Figure 5-6As shown, according to another embodiment of the utility model, the screw pressing mold, preferably, a plurality of positioning parts are provided between the upper template 3 and the adjacent middle template 2, between two adjacent middle templates 2, and between the lower template 1 and the adjacent middle template 2, and the plurality of positioning parts are evenly distributed along the circumference of the upper template 3, the middle template 2 or the lower template 1; each positioning part includes a positioning groove 8 opened on the upper part of the lower template 1 or the middle template 2 and a positioning column 81 fixedly installed on the lower part of the upper template 3 or the middle template 2, and the positioning column 81 is plugged into and matched with the corresponding positioning groove 8; through the cooperation between the positioning column 81 and the positioning groove 8, the upper template 3, the plurality of middle templates 2 and the lower template 1 will not move relative to each other during the pressing process, thereby ensuring a good pressing effect on the screws.

[0033] The use principle of the utility model is as follows: when the utility model is used, firstly, the countersunk blind holes 7 on the lower template 1 are filled with suitable screws, and then the number of middle templates 2 to be used is determined according to the number of remaining screws, and then the countersunk blind holes 7 on each middle template 2 are also filled with suitable screws, and then the middle templates 2 are sequentially sleeved on the studs 6, and the positioning columns 81 on each middle template 2 are inserted into the positioning grooves 8 on the lower template 1 or the adjacent middle template 2, and then the upper template 3 is sleeved on the studs 6, and the upper template 3 covers the uppermost middle template 2, so that the upper template 3 is also Each positioning column 81 is inserted into the corresponding positioning groove 8 on the uppermost middle template 2, and then the conical ring 4 and the sliding sleeve 41 are put on the stud 6, and the two sliding strips 42 on the inner walls of the conical ring 4 and the sliding sleeve 41 are slid into the corresponding sliding grooves 61 on the stud 6, and then the internal threaded sleeve 5 is threadedly connected to the stud 6, and the internal threaded sleeve 5 is continuously rotated to drive the sliding sleeve 41 and the conical ring 4 to move along the axial direction of the stud 6 toward the upper template 3 until the conical ring 4 is against the upper template 3, and then the internal threaded sleeve 5 is continued to be rotated to press the upper template 3, several middle templates 2 and the lower template 1 to complete the pressing operation of the screw.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A screw pressing die, characterized in that: include: An upper template (3), a plurality of middle templates (2) and a lower template (1) are stacked in parallel in a vertical direction, and a plurality of countersunk blind holes (7) are provided on the upper parts of the lower template (1) and the plurality of middle templates (2); and A clamping assembly, comprising a support portion fixedly connected to the lower template (1), a clamping portion slidably sleeved on the support portion, and an operating portion movably connected to the support portion, wherein the support portion freely passes through a plurality of middle templates (2) and an upper template (3), the operating portion is rotatably connected to the clamping portion, and the clamping portion is located above the upper template (3) and is used to abut against the upper template (3); The rotating operation part and the supporting part move relative to each other to drive the pressing part to move in the vertical direction.

2. A screw pressing die according to claim 1, characterized in that: The middle parts of the upper template (3) and the plurality of middle templates (2) are provided with through holes (9); the support part comprises a stud (6) one end of which is fixedly connected to the middle part of the lower template (1); the other end of the stud (6) vertically and freely passes through the through holes (9) of the upper template (3) and the plurality of middle templates (2); the clamping part is slidably sleeved on the outside of the stud (6); and the operating part is threadedly connected to the stud (6).

3. A screw pressing die according to claim 2, characterized in that: The clamping portion comprises a sliding sleeve (41) and a conical ring (4) which are coaxially fixedly connected in a vertical direction. The sliding sleeve (41) and the conical ring (4) are both slidingly sleeved on the outside of the support column. The operating portion is rotatably connected to an end of the sliding sleeve (41) away from the conical ring (4). The conical ring (4) is used to abut against the upper template (3).

4. A screw pressing die according to claim 3, characterized in that: The operating portion comprises an internal thread sleeve (5) coaxially rotatably connected to an end of the sliding sleeve (41) away from the conical ring (4), and the internal thread sleeve (5) is threadedly connected to the stud (6).

5. The screw pressing die according to claim 3, characterized in that: Two slide grooves (61) are provided on the side wall of the stud (6) in opposite directions along the axial direction, and two slide bars (42) are fixedly installed in opposite directions along the axial direction between the slide sleeve (41) and the inner wall of the conical ring (4), and the two slide bars (42) are slidably connected to the two slide grooves (61) in a one-to-one correspondence.

6. The screw pressing die according to claim 1, characterized in that: A plurality of positioning members are provided between the upper template (3) and the adjacent middle template (2), between two adjacent middle templates (2), and between the lower template (1) and the adjacent middle template (2), and the plurality of positioning members are evenly distributed along the circumference of the upper template (3), the middle template (2) or the lower template (1).

7. A screw pressing die according to claim 6, characterized in that: Each positioning member comprises a positioning groove (8) provided on the upper part of the lower template (1) or the middle template (2) and a positioning column (81) fixedly mounted on the lower part of the upper template (3) or the middle template (2), wherein the positioning column (81) is plugged into and matched with the corresponding positioning groove (8).

8. The screw pressing die according to claim 2, characterized in that: The plurality of countersunk blind holes (7) on the lower template (1) and the plurality of middle templates (2) are arranged in a circumferential array along the studs (6).

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