Linear arrangement to circular ring arrangement pitch changing mechanism

Abstract

The utility model provides a linear arrangement to circular ring arrangement variable pitch mechanism, including locating subassembly, variable pitch subassembly and drive piece, locating subassembly includes locating post and support plate, locating post is installed on the support plate, variable pitch subassembly includes first variable pitch unit and second variable pitch unit, the first variable-pitch unit comprises a first guide piece, a first product placing piece and a second product placing piece, the first product placing piece and the second product placing piece are used for supporting products and hinged to the first guide piece, and the second variable-pitch unit comprises a second guide piece, a third product placing piece and a fourth product placing piece, and the third product placing piece and the fourth product placing piece are used for supporting the products. The third product placing piece and the fourth product placing piece are both hinged to the second guiding piece, the driving piece is used for driving the first guiding piece and the second guiding piece to move in the opposite direction or the opposite direction, and when the first guiding piece and the second guiding piece move in the opposite direction, the first product placing piece and the fourth product placing piece rotate clockwise; and the second product placing piece and the third product placing piece rotate anticlockwise.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, and in particular to a linear arrangement to circular arrangement variable pitch mechanism. Background Technology

[0002] In the material feeding process, many products have different packaging spacing and feeding spacing to save costs, making it impossible to feed them directly and thus preventing automated production.

[0003] Currently, factories generally use manual labor to place products into precision positioning fixtures, and then a six-axis robotic arm picks them up and places them into the mold. This method requires a huge amount of human resources and lengthens the product production cycle, which cannot meet the needs of lean manufacturing. Utility Model Content

[0004] The purpose of this utility model is to provide a linear arrangement to circular arrangement variable pitch mechanism to solve the problems of high human resource consumption and long production cycle, which lead to low production efficiency.

[0005] This utility model provides a linear to circular arrangement variable-pitch mechanism, including a positioning component, a pitch-changing component, and a driving component. The positioning component includes a positioning post and a support plate, with the positioning post fixedly installed on the support plate. The pitch-changing component includes a first pitch-changing unit and a second pitch-changing unit. The first pitch-changing unit includes a first guide member and a first and a second product placement member for supporting products, both hinged to the first guide member. The second pitch-changing unit includes a second guide member and a third and a fourth product placement member for supporting products, both hinged to the second guide member. The first and second guide members are symmetrically arranged on both sides of the positioning post along a first direction. The driving component drives the first and second guide members to move towards or away from each other along the first direction. When the first and second guide members move towards each other, the first and fourth product placement members rotate clockwise, and the second and third product placement members rotate counterclockwise, thereby adjusting the spacing between the products.

[0006] In one embodiment of this utility model, the first pitch-changing unit further includes a first follower fixed to the first product placement member and a second follower fixed to the second product placement member. The second pitch-changing unit further includes a third follower fixed to the third product placement member and a fourth follower fixed to the fourth product placement member. The first guide member has a first guide groove and a second guide groove. The second guide member has a third guide groove and a fourth guide groove. The first follower is inserted into the first guide groove and rotatably connected to the first guide groove. The second follower is inserted into the second guide groove and rotatably connected to the second guide groove. The third follower is inserted into the third guide groove and rotatably connected to the third guide groove. The fourth follower is inserted into the fourth guide groove and rotatably connected to the fourth guide groove.

[0007] In one embodiment of the present invention, the first guide groove and the fourth guide groove both have a length extending along the second direction, and the second guide groove and the third guide groove both have a length extending along the third direction. The first direction and the second direction are both inclined to the first direction and are symmetrically arranged along the first direction.

[0008] In one embodiment of the present invention, the first angle between the projections of the first direction and the second direction onto the first guide or the second guide is 40°~70°, and the second angle between the projections of the third direction and the first direction onto the first guide or the second guide is 40°~70°.

[0009] In one embodiment of the present invention, the first pitch unit further includes a first product positioning component for supporting the product, and the second pitch unit further includes a second product positioning component for supporting the product. The first product positioning component and the second product positioning component are both relatively fixedly connected to the positioning post and are symmetrically arranged on both sides of the positioning post along the first direction. The first product positioning component is located between the first product placement component and the second product placement component, and the second product positioning component is located between the third product placement component and the fourth product placement component.

[0010] In one embodiment of this utility model, the support plate includes a support body, a first limiting block, and a second limiting block. The second limiting block and the first limiting block are fixedly connected to the support body and located at both ends of the support body. The positioning post of the first limiting block is located between the first limiting block and the second limiting block. The opposite sides of the first guide member are in contact with the first limiting block and the second limiting block, respectively. The first guide member moves between the first limiting block and the second limiting block along the first direction via the driving member. The opposite sides of the second guide member are in contact with the first limiting block and the second limiting block, respectively. The second guide member moves between the first limiting block and the second limiting block along the first direction via the driving member.

[0011] In one embodiment of this utility model, the linear arrangement to circular arrangement variable distance mechanism further includes a fixing plate, which is fixedly connected to the first limiting block and the second limiting block. The fixing plate has a clearance hole, and the first product positioning component and the second product positioning component are both fixedly connected to the fixing plate and located in the clearance hole. The first product placement component, the second product placement component, the third product placement component and the fourth product placement component are all located in the clearance hole.

[0012] In one embodiment of this utility model, the linear arrangement to circular arrangement pitch-changing mechanism has two pitch-changing components, which are distributed at intervals along a fourth direction, and the fourth direction is perpendicular to the first direction.

[0013] In one embodiment of this utility model, the linear arrangement to circular arrangement variable distance mechanism further includes a support, and the fixing plate is fixedly connected to the support.

[0014] In one embodiment of this utility model, when the driving member drives the first guide member and the second guide member to move towards each other and move until they both abut against the positioning post, the first product placement member and the fourth product placement member are rotationally symmetrical about the positioning post as the center of symmetry, and the second product placement member and the third product placement member are rotationally symmetrical about the positioning post as the center of symmetry. The first product positioning member and the second product positioning member are symmetrical about the center of the positioning post.

[0015] In the linear-to-circular arrangement variable-pitch mechanism of this utility model, a driving component drives the first and second guide components to move towards or away from each other, causing the first and second product placement components to rotate around the first guide component, and causing the third and fourth product placement components to rotate around the second guide component, thereby adjusting the spacing between the products. Through mechanical variable-pitch positioning, the amount of manual repetitive loading is reduced, greatly improving work efficiency and saving labor costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a linear arrangement to circular arrangement variable pitch mechanism according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the installation and connection between the positioning component, the pitch conversion component, and the driving component of a linear to circular pitch conversion mechanism according to an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the linear arrangement to circular arrangement variable distance mechanism of this utility model, excluding the first product placement component, the second product placement component, the third product placement component, and the fourth product placement component.

[0019] Figure 4 This is a schematic diagram of the structure of the linear arrangement to circular arrangement pitch-changing mechanism before pitch change according to an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the structure of the linear arrangement to circular arrangement variable pitch mechanism after pitch change according to an embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the structure of the first and second guide members of the linear arrangement to circular arrangement variable pitch mechanism according to an embodiment of the present invention.

[0022] Figure 7 This is a structural schematic diagram of the second / third product placement component of the linear arrangement to circular arrangement variable pitch mechanism according to an embodiment of the present invention.

[0023] Figure 8 This is a structural schematic diagram of the first / fourth product placement component of the linear arrangement to circular arrangement variable pitch mechanism according to an embodiment of the present invention.

[0024] Figure 9 This is a structural schematic diagram of the first / second product positioning component of the linear arrangement to circular arrangement variable pitch mechanism according to an embodiment of the present invention.

[0025] Figure 10 This is a schematic diagram of the positioning component of a linear arrangement to circular arrangement variable pitch mechanism according to an embodiment of the present invention. Detailed Implementation

[0026] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0027] This utility model provides a linear arrangement to circular arrangement variable pitch mechanism, such as... Figure 1-3As shown, a linear-to-circular arrangement variable-pitch mechanism of one embodiment includes a positioning component 11, a variable-pitch component 12, and a driving component 13. The positioning component 11 includes a positioning post 111 and a support plate 112, with the positioning post 111 fixedly mounted on the support plate 112. The variable-pitch component 12 includes a first variable-pitch unit and a second variable-pitch unit. The first variable-pitch unit includes a first guide member 121, and a first product placement member 122 and a second product placement member 123 for supporting the product. Both the first and second product placement members 122 and 123 are hinged to the first guide member 121 via a positioning shaft. The second variable-pitch unit includes a second guide member 124, and a third product placement member 125 and a fourth product placement member 126 for supporting the product. Both the third and fourth product placement members 125 and 126 are hinged to the second guide member 124 via a positioning shaft. The first guide member 121 and the second guide member 124 are symmetrically arranged on both sides of the positioning post 111 along the first direction. The driving member 13 is used to drive the first guide member 121 and the second guide member 124 to move towards or away from each other along the first direction. When the first guide member 121 and the second guide member 124 move towards each other, the first product placement member 122 and the fourth product placement member 126 rotate clockwise, and the second product placement member 123 and the third product placement member 125 rotate counterclockwise, thereby adjusting the spacing between the products.

[0028] In the linear-to-circular arrangement variable-pitch mechanism of this utility model, the driving component 13 drives the first guide component 121 and the second guide component 124 to move towards or away from each other, thereby causing the first product placement component 122 and the second product placement component 123 to rotate around the first guide component 121, and causing the third product placement component 125 and the fourth product placement component 126 to rotate around the second guide component 124, thus adjusting the spacing between the products. Through mechanical variable-pitch positioning, the amount of manual repetitive loading is reduced, greatly improving work efficiency and saving labor costs.

[0029] Combination Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the structure of the pitch-changing device before pitch change. Figure 5This is a schematic diagram of the structure after the pitch-changing device has changed pitch. The first pitch-changing unit and the second pitch-changing unit of the pitch-changing assembly 12 are symmetrically arranged on both sides of the positioning post 111 along the first direction. Taking four products as an example, for ease of distinction, the four products are named the first product, the second product, the third product, and the fourth product. The first product, the second product, the third product, and the fourth product are respectively placed on the first product placement piece 122, the second product placement piece 123, the third product placement piece 125, and the fourth product placement piece 126. Before pitch changing, the first product and the second product are spaced apart along the fourth direction perpendicular to the first direction, and the third product and the fourth product are spaced apart along the fourth direction perpendicular to the first direction. The arrangement direction of the first product and the second product is parallel to the arrangement direction of the third product and the fourth product. During the pitch change, the drive member 13 drives the first guide member 121 and the second guide member 124 to move towards each other until both the first guide member 121 and the second guide member 124 abut against the positioning post 111. During this process, under the traction of the first guide member 121 and the second guide member 124, the first product placement member 122, which is hinged to the first guide member 121, rotates clockwise, the second product placement member 123 rotates counterclockwise, the third product placement member 125, which is hinged to the second guide member 124, rotates counterclockwise, and the fourth product placement member 126 rotates clockwise. The first product, the second product, the third product, and the fourth product change from a linear arrangement to a circular arrangement.

[0030] It is understood that when the first guide member 121 and the second guide member 124 move towards each other until they respectively abut against the positioning post 111, the desired pitch-changing effect of this embodiment is achieved. Of course, reversing the operation of the drive member 13, that is, driving the first guide member 121 and the second guide member 124 to move in opposite directions, can also adjust the distance between the products to achieve the desired pitch-changing effect. After the pitch-changing product is removed, the pitch-changing assembly needs to be restored to its original state. At this time, the drive member 13 drives the first guide member 121 and the second guide member 124 to move in opposite directions, and then the product is placed again, and the above actions are repeated for the next pitch-changing.

[0031] In this embodiment, the first pitch-changing unit further includes a first follower 127 fixed to the first product placement member 122 and a second follower 128 fixed to the second product placement member 123. The second pitch-changing unit further includes a third follower 129 fixed to the third product placement member 125 and a fourth follower 120 fixed to the fourth product placement member 126. The first guide member 121 has a first guide groove 1211 and a second guide groove 1212. The second guide member 124 has a third guide groove 1241 and a fourth guide groove 1242. The first follower 127 is inserted into the first guide groove 1211 and rotatably connected to it. The second follower 128 is inserted into the second guide groove 1212 and rotatably connected to it. The third follower 129 is inserted into the third guide groove 1241 and rotatably connected to it. The fourth follower 120 is inserted into the fourth guide groove 1242 and rotatably connected to it.

[0032] Specifically, please combine Figure 6 In the structure shown, both the first guide groove 1211 and the second guide groove 1212 can be elongated straight waist-shaped holes, and both the first follower 127 and the second follower 128 can be cylinders. One end of the first follower 127 is fixed to the first product placement member 122, and the whole is located in the first guide groove 1211. One end of the second follower 128 is fixed to the second product placement member 123, and the whole is located in the second guide groove 1212. When the first guide member 121 and the second guide member 124 move toward the positioning post 111, the first follower member 127 moves relative to the first guide groove 1211 from the end near the second guide member 124 to the end away from the second guide member 124, and the second follower member 128 moves relative to the second guide groove 1212 from the end near the second guide member 124 to the end away from the second guide member 124; the first follower member 127 and the second follower member 128 move in opposite directions along the length of the first guide member 121. When the first guide member 121 and the second guide member 124 move away from the positioning post 111, the first follower member 127 moves relative to the first guide groove 1211 from the end away from the second guide member 124 to the end closer to the second guide member 124, and the second follower member 128 moves relative to the second guide groove 1212 from the end away from the second guide member 124 to the end closer to the second guide member 124.

[0033] Specifically, both the third guide groove 1241 and the fourth guide groove 1242 can be long, straight, waist-shaped holes, and both the third follower 129 and the fourth follower 120 can be cylinders. One end of the third follower 129 is fixed to the third product placement part 125, and the whole is located in the third guide groove 1241. One end of the fourth follower 120 is fixed to the fourth product placement part 126, and the whole is located in the fourth guide groove 1242. When the first guide member 121 and the second guide member 124 move toward the positioning post 111, the third follower member 129 moves relative to the third guide groove 1241 from the end near the first guide member 121 to the end away from the first guide member 121 within the third guide groove 1241, and the fourth follower member 120 moves relative to the fourth guide groove 1242 from the end near the first guide member 121 to the end away from the first guide member 121 within the fourth guide groove 1242; when the first guide member 121 and the second guide member 124 move away from the positioning post 111, the third follower member 129 moves relative to the third guide groove 1241 from the end away from the first guide member 121 to the end near the first guide member 121 within the third guide groove 1241, and the fourth follower member 120 moves relative to the fourth guide groove 1242 from the end away from the first guide member 121 to the end near the first guide member 121 within the fourth guide groove 1242.

[0034] In this embodiment, the first guide groove 1211 and the fourth guide groove 1242 both have a length extending along the second direction, and the second guide groove 1212 and the third guide groove 1241 both have a length extending along the third direction. The first direction and the second direction are both inclined to the first direction and are symmetrically arranged along the first direction.

[0035] Specifically, the first included angle between the projections of the first direction and the second direction onto the first guide 121 or the second guide 124 is 40° to 70°, and the second included angle between the projections of the third direction and the first direction onto the first guide 121 or the second guide 124 is 40° to 70°. It can be understood that the included angle between the projections of the first direction and the second direction onto the first guide 121 or the second guide 124 is equal to the included angle between the projections of the third direction and the first direction onto the first guide 121 or the second guide 124. Those skilled in the art can set the first included angle to 40°, 42°, 45°, 47°, 50°, 55°, 58°, 60°, 62°, 64°, 65°, 68°, 70°, etc., according to the actual situation; those skilled in the art can set the second included angle to 40°, 42°, 45°, 47°, 50°, 55°, 58°, 60°, 62°, 64°, 65°, 68°, 70°, etc., according to the actual situation, and no single limitation is made here.

[0036] In this embodiment, the first pitch unit further includes a first product positioning component 1201 for supporting the product, and the second pitch unit further includes a second product positioning component 1202 for supporting the product. The first product positioning component 1201 and the second product positioning component 1202 are both relatively fixedly connected to the positioning post 111 and are symmetrically arranged on both sides of the positioning post 111 along the first direction. The first product positioning component 1201 is located between the first product placement component 122 and the second product placement component 123, and the second product positioning component 1202 is located between the third product placement component 125 and the fourth product placement component 126.

[0037] Specifically, when the driving member 13 drives the first guide member 121 and the second guide member 124 to move towards each other and move until they both abut against the positioning post 111, the first product placement member 122 and the fourth product placement member 126 are rotate symmetrically distributed about the positioning post 111 as the center of symmetry, the second product placement member 123 and the third product placement member 125 are rotate symmetrically distributed about the positioning post 111 as the center of symmetry, and the first product positioning member 1201 and the second product positioning member 1202 are symmetrical about the center of the positioning post 111.

[0038] It should be noted that this information is for reference only. Figure 7-9 As shown in the structure, in this embodiment, the first product placement component 122 and the fourth product placement component 126 are structurally identical, as are the second product placement component 123 and the third product placement component 125. However, the first product placement component 122 / fourth product placement component 126 is structurally different from the second product placement component 123 / third product placement component 125. The first product positioning component 1201 and the second product positioning component 1202 are structurally identical. It can be understood that the first product placement component 122, the second product placement component 123, the third product placement component 125, and the fourth product placement component 126 can also be completely identical. The first product placement component 122, the second product placement component 123, the third product placement component 125, and the fourth product placement component 126 are mainly used to support products for placement, and their structural shape is not particularly required; therefore, no unique limitation is made here.

[0039] In this embodiment, as Figure 10As shown, the support plate 112 includes a support body 1121, a first limiting block 1122, and a second limiting block 1123. The second limiting block 1123 is fixedly connected to the support body 1121 and located at both ends of the support body 1121. The positioning post 111 of the first limiting block 1122 is located between the first limiting block 1122 and the second limiting block 1123. The opposite sides of the first guide member 121 are in contact with the first limiting block 1122 and the second limiting block 1123 respectively. The first guide member 121 moves along a first direction between the first limiting block 1122 and the second limiting block 1123 through the driving member 13. The opposite sides of the second guide member 124 are in contact with the first limiting block 1122 and the second limiting block 1123 respectively. The second guide member 124 moves along the first direction between the first limiting block 1122 and the second limiting block 1123 through the driving member 13.

[0040] Specifically, the first limiting block 1122 and the second limiting block 1123 both have a length extending along the first direction. During the movement of the first guide member 121 and the second guide member 124 towards or away from each other, their two ends respectively come into contact with the first limiting block 1122 and the second limiting block 1123. This design can guide the movement of the first guide member 121 and the second guide member 124, and the path guiding the movement of the first guide member 121 and the second guide member 124 will not deviate, thus ensuring the accuracy of the pitch change.

[0041] In this embodiment, the linear-to-circular arrangement pitch-changing mechanism further includes a fixed plate 14, which is fixedly connected to the first limiting block 1122 and the second limiting block 1123. The fixed plate 14 has a clearance hole 141. The first product positioning component 1201 and the second product positioning component 1202 are both fixedly connected to the fixed plate 14 and located in the clearance hole 141. The first product placement component 122, the second product placement component 123, the third product placement component 125, and the fourth product placement component 126 are all located in the clearance hole 141. The entire pitch-changing process of the first product placement component 122, the second product placement component 123, the third product placement component 125, and the fourth product placement component 126 takes place within the clearance hole 141.

[0042] In this embodiment, the linear arrangement to circular arrangement pitch-changing mechanism also includes a support 15, and a fixing plate 14 is fixedly connected to the support 15. The support 15 is mainly used for support.

[0043] In another preferred embodiment, the linear-to-circular pitch-changing mechanism has multiple pitch-changing components 12. Specifically, there are two pitch-changing components 12, which are spaced apart along a fourth direction perpendicular to the first direction. Those skilled in the art can set the number of pitch-changing components 12 to 3, 4, 5, 6, etc., depending on the actual situation; no single limitation is made here. Setting multiple pitch-changing components 12 allows for pitch changing of more products simultaneously, significantly improving production efficiency.

[0044] It should be noted that when there are two or more pitch control components 12, the number of the first guide groove 1211 and the second guide groove 1212 on the first guide member 121 increases accordingly, and the number of the third guide groove 1241 and the fourth guide groove 1242 on the second guide member 124 increases accordingly.

[0045] In this document, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of these terms based on the specific circumstances.

[0046] In this document, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", "vertical", and "horizontal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the purpose of clarifying the technical solution and for the convenience of description, and therefore should not be construed as limiting the present utility model.

[0047] In this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A linear-to-circular arrangement variable-pitch mechanism, characterized in that, The device includes a positioning assembly (11), a pitch-changing assembly (12), and a driving component (13). The positioning assembly (11) includes a positioning post (111) and a support plate (112), with the positioning post (111) fixedly mounted on the support plate (112). The pitch-changing assembly (12) includes a first pitch-changing unit and a second pitch-changing unit. The first pitch-changing unit includes a first guide (121), a first product placement component (122), and a second product placement component (123) for supporting the product. The first product placement component (122) and the second product placement component (123) are both hinged to the first guide (121). The second pitch-changing unit includes a second guide (124), a third product placement component (125), and a fourth product placement component (126) for supporting the product. 6) The third product placement component (125) and the fourth product placement component (126) are both hinged to the second guide component (124). The first guide component (121) and the second guide component (124) are symmetrically arranged on both sides of the positioning post (111) along the first direction. The driving component (13) is used to drive the first guide component (121) and the second guide component (124) to move towards or away from each other along the first direction. When the first guide component (121) and the second guide component (124) move towards each other, the first product placement component (122) and the fourth product placement component (126) rotate clockwise, and the second product placement component (123) and the third product placement component (125) rotate counterclockwise, thereby adjusting the spacing between the products.

2. The linear-to-circular arrangement variable-pitch mechanism according to claim 1, characterized in that, The first pitch-changing unit further includes a first follower (127) fixed to the first product placement member (122) and a second follower (128) fixed to the second product placement member (123). The second pitch-changing unit further includes a third follower (129) fixed to the third product placement member (125) and a fourth follower (120) fixed to the fourth product placement member (126). The first guide member (121) has a first guide groove (1211) and a second guide groove (1212), and the second guide member (124) has a third guide groove (124). 1) and the fourth guide groove (1242), the first follower (127) is inserted into the first guide groove (1211) and rotatably connected to the first guide groove (1211), the second follower (128) is inserted into the second guide groove (1212) and rotatably connected to the second guide groove (1212), the third follower (129) is inserted into the third guide groove (1241) and rotatably connected to the third guide groove (1241), and the fourth follower (120) is inserted into the fourth guide groove (1242) and rotatably connected to the fourth guide groove (1242).

3. The linear-to-circular arrangement variable-pitch mechanism according to claim 2, characterized in that, The first guide groove (1211) and the fourth guide groove (1242) both have a length extending along the second direction, and the second guide groove (1212) and the third guide groove (1241) both have a length extending along the third direction. The first direction and the second direction are both inclined to the first direction and are symmetrically arranged along the first direction.

4. The linear-to-circular arrangement variable-pitch mechanism according to claim 3, characterized in that, The first included angle between the projections of the first direction and the second direction onto the first guide (121) or the second guide (124) is 40°~70°, and the second included angle between the projections of the third direction and the first direction onto the first guide (121) or the second guide (124) is 40°~70°.

5. The linear-to-circular arrangement variable-pitch mechanism according to claim 1, characterized in that, The first pitch unit further includes a first product positioning component (1201) for supporting the product, and the second pitch unit further includes a second product positioning component (1202) for supporting the product. The first product positioning component (1201) and the second product positioning component (1202) are both relatively fixedly connected to the positioning post (111) and are symmetrically arranged on both sides of the positioning post (111) along the first direction. The first product positioning component (1201) is located between the first product placement component (122) and the second product placement component (123), and the second product positioning component (1202) is located between the third product placement component (125) and the fourth product placement component (126).

6. The linear-to-circular arrangement variable-pitch mechanism according to claim 5, characterized in that, The support plate (112) includes a support body (1121), a first limiting block (1122), and a second limiting block (1123). The second limiting block (1123) is fixedly connected to the support body (1121) and located at both ends of the support body (1121). The positioning post (111) of the first limiting block (1122) is located between the first limiting block (1122) and the second limiting block (1123). The opposite sides of the first guide member (121) are respectively connected to the first limiting block (1122). 2) The first guide (121) is in contact with the second limiting block (1122) and the second limiting block (1123) through the driving member (13) and moves along the first direction between the first limiting block (1122) and the second limiting block (1123). The opposite sides of the second guide (124) are in contact with the first limiting block (1122) and the second limiting block (1123) respectively. The second guide (124) moves along the first direction between the first limiting block (1122) and the second limiting block (1123) through the driving member (13).

7. The linear-to-circular arrangement variable-pitch mechanism according to claim 6, characterized in that, The linear arrangement to circular arrangement variable distance mechanism also includes a fixed plate (14), which is fixedly connected to the first limiting block (1122) and the second limiting block (1123). The fixed plate (14) has a clearance hole (141). The first product positioning component (1201) and the second product positioning component (1202) are both fixedly connected to the fixed plate (14) and located in the clearance hole (141). The first product placement component (122), the second product placement component (123), the third product placement component (125) and the fourth product placement component (126) are all located in the clearance hole (141).

8. The linear-to-circular arrangement variable-pitch mechanism according to claim 1, characterized in that, The linear arrangement to circular arrangement pitch-changing mechanism has two pitch-changing components (12), which are spaced apart along a fourth direction, which is perpendicular to the first direction.

9. The linear-to-circular arrangement variable-pitch mechanism according to claim 7, characterized in that, The linear arrangement to circular arrangement pitch change mechanism also includes a support (15), and the fixing plate (14) is fixedly connected to the support (15).

10. The linear arrangement to circular arrangement pitch-changing mechanism according to claim 5, characterized in that, When the driving member (13) drives the first guide member (121) and the second guide member (124) to move towards each other and move until they both abut against the positioning post (111), the first product placement member (122) and the fourth product placement member (126) are rotate symmetrical about the positioning post (111), the second product placement member (123) and the third product placement member (125) are rotate symmetrical about the positioning post (111), and the first product positioning member (1201) and the second product positioning member (1202) are centrally symmetrical about the positioning post (111).

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